SCROLLINSTALLATIONINSTRUCTIONSFOR EMBRACO SCROLLREFRIGERATION COMPRESSORSSCOPE OF THE COMPRESSOR INSTALLATION INSTRUCTIONS
These installation instructions applies to Embraco scroll compressors for refrigeration applications. The
Country of Origin is indicated on the compressor label.
It is addressed to professional, commercial refrigeration system manufacturers/installers and maintenancetechnicians and intends to provide instructions/recommendations on the proper use of Embraco scroll
compressors regarding reliability, performance and safety aspects.
The information of this these installation instructions is limited to the Embraco scroll refrigeration
compressors and to their installation/operation/service. It is not to be considered comprehensive or as aset of information for training for technicians that need to be qualified by appropriated training nor to replace
the instruction manual of the final equipments provided by the manufacturers.
All the operation on systems, their production, installation use, repairing and disposal must be carried out
according to all the applicable International and National regulations and standards.

DISCLAIMER
All product specifications and data are subject to change without notice; thus customer should always verify its
latest updates on Embraco website (www.embraco.com), catalogues before relying on them.
The information provided herein is correct to the best of Embraco’s knowledge of typical requirements thatare often requested to Embraco’s products, It is the customer’s responsibility, relying solely on its own testingand engineering work, to validate that a particular product with the properties described in Embraco’s productspecification is suitable for use in a particular application, Embraco makes no representation concerning thesuitability of its products for incorporation into or use with customer’s applications.
Parameters provided in datasheets and / or specifications may vary in different applications and performanceover time. Therefore Embraco’s statements related to all operating parameters, including typical parameters,
cannot be intended to replace the customer’s validation for each application by the customer’s technical experts.
Product specifications do not expand or otherwise modify Embraco’s terms and conditions of purchase, including
but not limited to the warranty expressed therein.
Embraco rejects any liability for damages and injures caused by its products and/or the applications they areembedded into being installed or repaired by untrained personnel and/or in discordance with these safety
instructions.

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GENERAL INDEX

8.14 			8.15 			Pressure controls..................................................................................... p.		 30Internal pressure relief valve (IPR Valve).............................................. p.		 301 			1.1 			1.2 			1.3 			SAFETY..................................................................................................... p.		 07Safety notice............................................................................................ p.		 07Safety advice ........................................................................................... p.		 07Safety instructions ................................................................................. p.		 082 			2.1 			2.2 			PRODUCT INTRODUCTION......................................................... p.		 09Compressor test condition .................................................................... p.		 11Compressor cooling types ..................................................................... p.		 113			COMPRESSOR APPLICABLE STANDARDS AND REGULATIONS.... p.		 114 			EMBRACO RELEVANT DOCUMENTS .......................................... p.		 115 			5.1 			5.2			
5.2.1
5.2.2
5.2 3
5.2.4 			5.2.5 			5.2.6 			5.3 			5.3.1 			COMPRESSOR NOMENCLATURE ............................................... p.		 12Compressor model code ........................................................................ p.		 12Compressor Bill of material code ......................................................... p.		 12Compressor size....................................................................................... p.		 12Voltage and frequency supply .............................................................. p.		 13External execution .................................................................................. p.		 13Electrical execution ................................................................................ p.		 13Accessories execution ............................................................................ p.		 14Packaging execution ............................................................................... p.		 14Compressor label .................................................................................... p.		 14Serial number code ................................................................................. p.		 159 			9.1 			9.2 			9.3 			9.4 			9.5 			9.6 			9.7 			9.8 			9.9 			9.10 			9.11 			9.12 			9.12.1		
9.12.2		
9.12.3		
9.12.4		
9.12.5		
9.13			9.14			9.15			INSTALLATIONS...................................................................................... p.		 30System components compatibility ....................................................... p.		 30Painting .................................................................................................... p.		 31Grommets and sleeves ........................................................................... p.		 31Mounting for rack systems..................................................................... p.		 31Screens...................................................................................................... p.		 32Liquid injection ....................................................................................... p.		 32Solenoid valve.......................................................................................... p.		 33Current sensing relay .............................................................................. p.		 33Temperature responsive expansion valve ............................................ p.		 33Suggested application techniques ........................................................ p.		 34Compressor or valve service .................................................................. p.		 34Connectors ............................................................................................... p.		 35Compressor pressurization..................................................................... p.		 35Connectors brazing process ................................................................... p.		 35Tube brazing............................................................................................. p.		 36Tube disconnects..................................................................................... p.		 36Tubing selection ...................................................................................... p.		 36Connections.............................................................................................. p.		 37Rotolock valves........................................................................................ p.		 38Adapters.................................................................................................... p.		 386 			PRODUCT DESCRIPTION...................................................................... p.		 156.1 			6.2 			6.2.1 		6.3 			6.4 			6.5 			6.6 			

Application description........................................................................... p.		 15Approved refrigerants.............................................................................. p.		 16Refrigerants general information.......................................................... p.		 17External dimensions................................................................................ p.		 18Hermetic terminal dimensions ............................................................. p.		 19Sight glass................................................................................................ p.		 20Free internal volume............................................................................... p.		 207 			TECHNICAL SPECIFICATIONS.............................................................. p.		 218 			8.1 			8.2 			8.3 			8.4 			8.5 			8.6 			8.7 			8.8 			8.9 			8.10 			8.11 			8.12 			8.13 			8.13.18.13.2		

OPERATING CONDITIONS..................................................................... p.		 22Ambient temperature.............................................................................. p.		 22Compressor selection.............................................................................. p.		 22Supply voltages and frequencies .......................................................... p.		 23Operating envelopes............................................................................... p.		 24Low ambient operation........................................................................... p.		 25Refrigerant charge................................................................................... p.		 25Crankcase heater..................................................................................... p.		 26Accumulators........................................................................................... p.		 27Pump down recommendations.............................................................. p.		 27Compressor On/Off cycling.................................................................... p.		 28Shell temperrature ................................................................................. p.		 28Maximum discharge gas pressures and temperatures ...................... p.		 28Discharge line thermostat ..................................................................... p.		 29Discharge line thermostat for LBP........................................................ p.		 29Discharge line thermostat for MBP....................................................... p.		 2910 			
10.1 			10.2 			10.2.1
10.3 			10.4			10.4.1		
10.5 			10.6 			10.710.8 		10.9 		
10.10
10.11
10.12
10.13a10.13b
10.14
10.15
10.16
10.17
10.18

ELECTRICAL SPECIFICATIONS.....................................................................p.		 39Electrical motor types ............................................................................ p.		 39Electrical components types ................................................................. p.		 40Electrical components specification of single phase ......................... p.		 40Electrical connections and wiring diagrams ........................................ p.		 41Motor protection...................................................................................... p.		 42Overload protector parameters.............................................................. p.		 42Degree of protection .............................................................................. p.		 42CSR box..................................................................................................... p.		 43Fusite pin ................................................................................................. p.		 43Terminal cover mounting and removal................................................. p.		 44Three-Phase rotation direction ............................................................. p.		 44Brief power interruptions ....................................................................... p.		 45Electrical supply line and cabinet supply cable................................... p.		 45Maximum temperature of electric motor windings............................. p.		 45Electrical data of three phase motor..................................................... p.		 46Electrical data of single motor............................................................... p.		 47Definitions................................................................................................. p.		 47High potential (Hi-pot) testing............................................................... p.		 47Electrical connections............................................................................. p.		 48Screws tightening torque ....................................................................... p.		 48Electrical insulation................................................................................. p.		 4911 			
11.1 			11.2 			11.3 			11.4 			11.5 			11.6 			STARTING PROCEDURE .............................................................. p.		 49System cleanliness ................................................................................. p.		 49Moisture removal .................................................................................... p.		 49System evacuation.................................................................................. p.		 50Deep vacuum operation ......................................................................... p.		 50Dehydration.............................................................................................. p.		 50Charging process ..................................................................................... p.		 51

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11.7
11.7.1
11.8			11.911.10

Oil charge ................................................................................................. p.		 51Oil Management for rack application.................................................... p.		 52Scroll functional check ........................................................................... p.		 52Starting sound level ............................................................................... p.		 52Sound generation in refrigeration system............................................ p.		 5312			12.1			12.2			

MAINTENANCE (COMPRESSOR REMOVAL AND REPLACEMENT) ... p.		 53Compressor replacement procedure .................................................... p.		 55Unbrazing system components ............................................................ p.		 5513 			

HOW TO RETURN SUPPLIED PRODUCTS TO EMBRACO EUROPE .. p.		 5614 			
15 			
15.1 			15.2 			COMPRESSOR DISPOSALS ............................................................p.57
COMPRESSOR PACKAGING ................................................................ p.57
Multiple (industrial) packaging .............................................................. p.		 57Single packaging ..................................................................................... p.		 5716 			
16.1 			16.2			16.3 			16.4			16.4.1		
16.4.2		
16.4.3					
16.4.4		

HANDLING. TRANSPORTATION AND STORAGE..............................p.59
Handling.................................................................................................... p.		 59Storage...................................................................................................... p.		 59Storage conditions .................................................................................. p.		 60Transportation ........................................................................................ p.		 60Shipment by container ........................................................................... p.		 60Shipment by truck .................................................................................. p.		 61Acceptable compressor positions during transportationof finished product .................................................................................. p.		 61Acceleration during transport and handling ........................................ p.		 611. SAFETY

1.1 SAFETY NOTICE
Embraco compressors are designed, manufactured and inspected according to the latest European
applicable standards, with particular care on the user’s safety.
Embraco compressors are designed as refrigerant pumping elements on refrigeration machines. Only if they
are used for this purpose and installed according to the instructions of these installation instructions andthe applicable regulations and standards can be put in service, as indicated on the Embraco Manufacturers
Declaration of Incorporation according the 2006/42/EC Machinery Directive.
These instructions should be retained throughout the lifetime of the compressor. You are strongly advised
to follow these safety instructions, and also the local related rules should be obeyed.
Technicians are strongly advised to follow the entire applicable International and National laws andregulation as well as the instructions of these installation instructions.

APPENDIX 1 – SAFETY RECOMMENDATIONS FOR COMPRESSOR INSTALLATION .......... p. 62
DIGITAL TOOLS............................................................................................................... p. 67

ACRONYMS USED IN THE TEXTATEL: Acute-toxicity Exposure Limit
AHRI: Air-Conditioning, Heating andRefrigeration Institute (formerly)
CSR (CSCR): Capacitive Start & Run(Capacitor Start - Capacitor Run)
DTC: Discharge Temperature Control Valve
EN: European Standards

ISPM: Regulation of Wood packaging
Material in International Trade
LBP: Low Back Pressure
LCL: Less Then Container Load
LFL: Lower Flammability Limit
LRA: Locked Rotor Amps
LVD: Low Voltage Directive

OFDN: Oxygen-Free-Dry-Nitrogen
OLP: Overload Protector
PED: Pressure Equipment Directive
POE: Polyolester
RCD: Residual Current Device
REACH: Regulation on Registration,
Evaluation, Authorization and Restriction ofChemicals

GFCI: Ground Fault Circuit Interrupter

MBP: Medium Back Pressure

GWP: Global Warming Potential

MCC: Maximum Continuous Current

HFC: HydroFluoroCarbon

MD: Machine Directive

RoHS: Restriction of Hazardous Substances
Directive

HFO: HydroFluoroOlefin

MOC: Maximum Operating Current

SH: Superheating

ID: Internal Diameter

MSDSs: Material Safety Data Sheets

TXV: Thermostatic Expansion Valve

IP: International Protection (ratings)

OD: Outside Diameter

3Ø: Three-phase

IPRV: Internal Pressure Relief ValveODL: Oxygen Deprivation Limit

ISO: International Organization ofStandardization

ODP: Ozone Depletion

RLA: Rated Load Amperage

Terms and Definitions
For the refrigeration system terms used in these Scroll installation instructions, refer to EN 378-1 or similar
standards.

6

1.2 SAFETY ADVICEWARNINGCAUTION

IMPORTANTWARNING: Indicates Instructions that may result in personal injury or death andproperty damage if not carefully followed.

CAUTION: indicates instructions that may results in property damage and possible
personal injury if not carefully followed.

IMPORTANT: indicates instruction to avoid damages/malfunction of thecompressors.

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1.3 SAFETY INSTRUCTIONS
Safety statements• Refrigerant compressors must be used only for their intended use.
• Only qualified/certified and authorized refrigeration technicians are permitted
to perform installation and maintenance of compressors.
• Electrical connections must be made by qualified electrical technicians.
• All valid standards for installing, servicing, and maintaining of electrical andrefrigeration equipment must be observed.
• Usage of personal safety equipment is recommended (goggles, gloves, clothing,boots and hard hats)
Electrical shock hazard• Turn off power before servicing.
• Discharge all capacitors.
• Use compressor with grounded system only.
• Molded electrical plug must be used when required.
• Refer to original equipment wiring diagrams.
• Electrical connections must be made by qualified electrical personnel.
• Use only components approved by manufacturer.
• Failure to follow these warnings could result in serious personal injury.
WARNING

2. PRODUCT INTRODUCTION
Embraco offers a full range of hermetic reciprocating compressors for refrigeration from fractional
horse power (hp) up to 1.5hp with a long experience in developing innovative solutions for commercial
and professional refrigeration.
With the new range of scroll compressors for refrigeration Embraco complete the product range forcommercial and professional applications with a range of scroll compressors from 2hp up to 13hp
working with R404A, R452A, R449A, R448A and R134a, R513A (MBP only).
By visualizing the whole cycle of a scroll mechanism, we can notice that 3 phases: suction, compression
and discharge are simultaneously made in a continuous movement.
It represents numbers of advantages:• Less parts in movement versus other compressor technologies; the compression system iscomposed by only the mobile and the fix scroll.
• There is no dead space, the volumetric efficiency is close to 1.
• The absence of re-expansion loss makes that there is no reduction of the isentropic efficiency.
• The perfect suction system symmetry by two points diametrically opposed and discharge by
the center of spirals assure a functioning with much lower pulsations and noise.

Figure 2.0 Product sections

Pressurized system hazard• System contains refrigerant and oil under pressure.
• Remove refrigerant from both the high and low pressure side before removing
compressor.
• Use appropriate back up wrenches on Rotolock fittings when servicing.
• Never install a system and leave it unattended when it has no charge,
a holding charge, or with the service valves closed without electrically locking
out the system.
• Use only approved refrigerants and refrigeration oils.
• Failure to follow these warnings could result in serious personal injury.
Burn hazard• Do not touch the compressor until it has cooled down.
• Ensure that materials and wiring do not touch high temperature areas of
the compressor.
• Use caution when brazing system components.
• Failure to follow these warnings could result in serious personal injury orproperty damage.

WARNING8

For the compressor connection to the electrical supply line and for maintenance/
repairing operations, refer also to Appendix 1 - Recommendations - safety
instruction for compressor installation.

LBP section

MBP section

9

DESIGN FEATURES

2.1 COMPRESSOR TEST CONDITION

Figure 2.0.1. Discharge valve• Dynamic valve specially designed for
MBP/LBP working conditions - allows
high compression ratio reducing
compression.

Table 2.1 Test condition
TEST
CONDITIONS(RATING POINT)APPLICATIONEVAPORATINGCONDENSING

RETURN GASTEMPERATURETEMPERATURETEMPERATURE

°C

°C

°C

-35

40

AMBIENT
SUB-COOLINGTEMPERATURE°C• Instant shutdown.
• More efficient for pump down control.

LBP
EN 12900

20NO
SUB-COOLING

35

MBP

-10

45

ARI 540(2015)

LBP

-31.6

40.6

4.4

NO
SUB-COOLING35

ARI 540(2004)

HBP

-6.7

54.4

48.9

NO
SUB-COOLING

35

2.2 COMPRESSOR COOLING TYPES
Figure 2.0.2 Involutes• Unique design with dual compliance – radial
and axial.
• Effective control of discharge temperature
to improve compressor reliability.
• Specially designed for Mid/Low
temperatures compression ratio.
• Height-thickness ratio to assure strengthof involutes.
• High isentropic efficiency design.

Scroll compressors are designed as static, not requiring forced ventilation cooling. Its cooling is secured byrefrigerant. Ambient temperature has very little impact on compressor performance.

3. COMPRESSOR APPLICABLE STANDARDS AND
REGULATIONS
Compressors comply with the latest European standards and regulations and are marked withmark.
• Low Voltage Directive 2014/35/EU.
• Machinery Directive 2006/42/EC.

2.0.3 Motor• Designed for higher motor efficiency in different condition.

• Pressure Equipment Directive (PED) 2014/68/UE.
• RoHS II Directive 2011/65/EU.
• REACH Regulation (EC) 1907/2006.

• Designed to ensure uniform three phase motor winding temperature.
• Build-in overload protector.

4. EMBRACO RELEVANT DOCUMENTS• Embraco Product Selector on www.embraco.com• Scroll Installation instructions.
Check available documents on www.embraco.com or contact Embraco Technical support team.

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5. COMPRESSOR NOMENCLATURE

5.2.2 VOLTAGE AND FREQUENCY SUPPLYInformation printed on compressor label: model, voltage and frequency supply, bill of material.

Table 5.2.2
VOLTAGE CODERATED VOLTAGE & FREQUENCYC

220V 50HZ 1~

O

380-420V 50HZ / 460V 60HZ 3~

5.1 COMPRESSOR MODEL CODE

2

SE

015

GK

C

COMPRESSOR FAMILY

VOLTAGE & FREQUENCY SUPPLYSE = Scroll Embraco

5.2.3 EXTERNAL EXECUTION

C - 220V 50Hz 1~
O - 380-420V 50Hz/460V 60Hz 3~

APPLICATION CODE
2 = LBP6 = MBPREFRIGERANT
R404A, R452A, R449A, R448A, R134a, R513A

NOMINAL CAPACITY
In Btu/h at 60 Hz x 1000
ARI conditions
E.g. 015=15000 Btu/h

5.2 COMPRESSOR BILL OF MATERIAL CODE

30 1

A

C 01 01 A

A
PACKAGING EXECUTIONCOMPRESSOR SCROLLTYPE

ACCESSORIES EXECUTION

Table 5.2.3
EXTERNALEXECUTIONCOMPRESSORSIZEAPPLICATIONCONFIGURATION TYPE

01

2-6 hp

MBP

Brazing connection; discharge tube ID Ø12.92mm ±5; suction tube ID Ø22.4mm ±5;
oil sight glass.

02

2-6 hp

LBP

Brazing connection; discharge tube ID Ø12.92mm ±5; suction tube ID Ø22.4mm ±5;
Liquid Injection with DTC valve; oil sight glass.

03

7-13 hp

LBP

Brazing connection; discharge tube ID Ø22.47mm; suction tube ID Ø28.83mm; Liquid
Injection with DTC valve; oil sight glass.

04

7-13 hp

MBP

Brazing connection; discharge tube ID Ø22.47mm; suction tube ID Ø28.83mm; oil sightglass.

11

2-6 hpMBP

Rotolock connection; threaded discharge connection 3/4“-16 UNF 2A, ID Ø9mm; threaded
suction connection 1 1/4“-12 UNF 2A, ID Ø19.2mm; oil sight glass.

12

2-6 hp

LBP

Rotolock connection; threaded discharge connection 3/4“-16 UNF 2A, ID Ø9mm;
threaded suction connection 1 1/4“-12 UNF 2A, ID Ø19.2mm; Liquid injection with DTC
valve; oil sight glass.

13

7-13 hp

LBP

Rotolock connection; threaded discharge connection 1 1/4“-12 UNF 2A, ID Ø19.2mm;
threaded suction connection 1 3/4“-12 UNF 2A, ID Ø26.4mm. Liquid Injection with DTC
valve; oil sight glass.

14

7-13 hp

MBP

Rotolock connection; threaded discharge connection 1 1/4“-12 UNF 2A. ID Ø19.2mm;
threaded suction connection 1 3/4“-12 UNF 2A, ID Ø26.4mm; oil sight glass.

COMPRESSOR SIZE
ELECTRICAL EXECUTIONMODEL CODE

5.2.4 ELECTRICAL EXECUTION

EXTERNAL EXECUTIONVOLTAGE & FREQUENCY SUPPLY

Table 5.2.4
5.2.1 COMPRESSOR SIZE

12

1 – MBP models for 2-6hp

3 – LBP models for 2-6hp

2 – MBP models for 7-13hp

4 – LBP models for 7-13hp

EXECUTION

MOTOR TYPE

01

3 PHASE04

1 PHASE CSRCONFIGURATION TYPE
Internal overload protector, terminal cover with gasket and wiring diagram, grounding screw.
CSR box with start and run capacitor, Internal overload protector, terminal cover with gasket and wiring diagram,grounding screw.

13

5.3.1 SERIAL NUMBER CODE

5.2.5 ACCESSORIES EXECUTION
Table 5.2.5
EXECUTIONACCONFIGURATION TYPE
Grommets, sleeves, tube plug, DTC valve included for LBP

170503

PRODUCTION LINE

0061
SEQUENCE NUMBER

YEAR / MONTH / DAY

5.2.6 PACKAGING EXECUTION
Table 5.2.6
EXECUTIONPCS PER PALLET

A

9

B

12 (for compressors 7-13 hp)

C

16 (for compressors 2-6 hp)

6. PRODUCT DESCRIPTION

6.1 APPLICATION DESCRIPTION

Note: See Chapter 15 for detailed information about packaging.

5.3 COMPRESSOR LABEL
Figure 5.3 LabelWARNING

Oil type
Oil initialchargeMaximum Operating Pressures(Low and High Side)

Compressor model

Bill of Materials code
Serial Number Code*Compressor protection
Displacement

Each compressor model is intended for specific refrigerant and application. Theiruse in different application and/or with different refrigerant may result in significant
impact to motor-compressor performance, life expectancy or even may result inpersonal injury and damages.

LBP (Low Back Pressure) scroll compressors are designed to correspondent to the latest scroll technologyof refrigeration for low temperature application; including special scroll set design, dynamic discharge valve
and injection system. These special designs result in a compressor that is suitable for the most demanding
refrigeration applications with efficiencies comparable to the semi-hermetic piston compressors.
LBP models are optimized for low temperature applications with discharge
temperature management, working down to -40°C of evaporating temperature;for instance commercial and professional refrigeration application, frozen foodcabinets, frozen food display cases, cold rooms, frozen products, environmental
test chambers.

Rated Load Amps (RLA)
Locked Rotor Amps (LRA

Voltage & Frequency Supply* Manufacturing Date is part of Serial Number Code.

14

MBP (Medium Back Pressure) scroll compressors are designed to correspondent to the latest scroll
technology of refrigeration for medium temperature applications.
MBP models are optimized for medium temperature applications, able to run
down to -30°C of evaporating temperature without injection solution; for instancecommercial and professional cabinets, fresh products cabinets, ice machines, milkcoolers and cold room.

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6.2 APPROVED REFRIGERANTS

6.2.1 REFRIGERANTS GENERAL INFORMATION

Usage of different refrigerants can generate abnormal working conditions, excessive
pressure in the refrigeration system, damages of the compressor and explosions.
WARNINGAll operations related to the use of refrigerants shall be performed only by trainedand qualified technicians and in accordance with applicable International andNational standards, laws and regulations related to this subject.
WARNING

Users must have available and understand the applicable HFCs Material Safety
Data Sheets (MSDSs).

When selecting the refrigerant, it is important to measure different aspects the environment would require:legislations, standards, cost, availability, and surely the applications. Thanks to its specific technology, thescroll allows the compressor to run as multi refrigerant product, Embraco has therefore qualified the range
with the following refrigerants:

Table 6.2 Approved refrigerants
REFRIGERANTSAPPLICATION
R404A

R452A

R449A

R448A

R134a

R513A

LBP

✓

✓

✓

✓

X

X

MBP

✓

✓

✓

✓

✓

✓

R404A is an HFC refrigerant without any ozone depletion (ODP=0) and suitable for medium temperature andlow temperature applications, it is near an azeotropic mixture and the glide effect is negligible. It has to be
charged in liquid phase.

Table 6.2.1
ACCORDING TO
EN378

R404A

R452A

R449A

R448A

R134a

R513A

CHEMICALNAME

MixtureR125/R143a/
R134a

MixtureR32/R125/
R1234yf

MixtureR32/R125/
R1234yf/ R134a

MixtureR32/R125/
R1234yf/R134a/
R1234ze (E)1,1,1,2tetrafluoroethane

MixtureR134a/R1234yf

MOLECULAR
FORMULA

Weight %(44/52/4)

Weight %(11/59/30)

Weight %(24.3/24.7/
25.3/25.7)

Weight %(26/26/20/21/7)

CH2FCF3

Weight %(44/56)

SAFETY CLASS
(1)

A1

A1

A1

A1

A1

A1

PED FLUID GROUP

2

2

2

2

2

2

PRACTICAL LIMIT[kg/m3] (2)

0.52

0.423

0.357

0.388

0.25

0.319

ATEL/ODL[kg/m3]

0.52

0.423

0.357

0.388

0.21

0.319

LFL [kg/m3]

NF (*)

NF (*)

NF (*)

NF (*)

NF (*)

NF (*)VAPOUR DENSITY
25°C,
101.3 KPA [kg/m3]

3.99

4.30

3.62

3.58

4.17

4.256

MOLECULAR MASS
[g/mol]97.6

103.51

87.21

86.28

102

108.4

NORMAL BOILING
POINT
[°C]

– 46.5 to – 45.7

-47 to -43.2-46 to -39.9-45.9 to -39.8-26-29.05

ODP

0

0

0

0

0

0

GWP
[100 yr ITH]

3922

2140

1397

1387

1430

631.4

AUTOIGNITIONTEMPERATURE
[°C]

728

ND

ND

ND

743

ND

R452A is a HFC/HFO blend, it contains R125/R32/R1234yf, but belong to A1 safety class (GWP: 2140; ODP:0), originally developed for transport application, it can also be used in commercial refrigeration in both
medium and low temperature applications with similar performances than R404A. It can therefore be used in
new installations as well as retrofit of existing installations.

CRITICALTEMPERATURE
[°C]

72.12

74.9

81.5

83.7

101.06

96.5

CRITICAL PRESSURE[kPa abs]

3734.94001.74447

4660

4059.3

3766

R449A is a HFC/HFO blend, it contains R125/R32/R134a/R1234yf, low GWP (1397), no ozone depletion(ODP=0) and belong to A1 safety class. It can be used for medium and low applications.

TEMPERATURE
GLIDE AT 1 BAR ABS
PRESSURE [K]

0.75

0.38

0.61

0.63

0

0.1

The impact of its glide (6,1K) and higher discharge temperature has to be taken consideration for retrofit; anaudit of the heat exchangers, expansion devices has to be done before final decision.
R448A is a non flammable HFC/HFO blend. It contains R125/R32/R134a/R1234yf/R1234ze, low GWP (1387),
no ozone depletion (ODP=0) and belong to A1 safety class. It can be used for medium and low applications.
The impact of its glide (6,3K) and higher discharge temperature has to be taken consideration for retrofit;
an audit of the heat exchangers, expansion devices has to be done before final decision.
R134a is a pure refrigerant with zero glide and low GWP (1430), it is only qualified for medium temperatureapplication.
R513A is a HFO refrigerant, it contains R1234yf/R134a, low GWP (631), no ozone depletion (ODP=0) withzero glide and belong to A1 safety class. It is qualified for medium temperature application, suitable for new
installations as well as retrofit of existing installations.

16

Note: HFC refrigerants (R404A, R452A, R449A, R448A, R134a and R513A) are classified in Safety Class A1 lower toxicity, no flame propagation, (according to ISO817).

Refrigerant glide - Single component refrigerants evaporates and condense at constant temperature,
bubble point temperature and dew point temperature are the same. Some refrigerants mixtures, classified
as zeotropic refrigerants, have a measurable temperature change during evaporation or condensing process.
This temperature change is described as „glide“. The „glide“ depends on the mixture substances and theircompositions. As a consequence of „glide“, different temperatures are measured at inlet and outlet of heatexchangers. For correct performance evaluation of zeotropic refrigerants with the glide more than 1K, theaverage evaporator temperature and average condenser temperature shall be considered.

176.3 EXTERNAL DIMENSIONS
MBP_2-6 HP

MBP_7-13 HP
BRAZING

I.D. mm

MATERIAL

BRAZING

I.D. mm

MATERIAL

S - SUCTION

22.35-22.45

COPPER PLATED STEELS - SUCTION

28.83

COPPER PLATED STEEL

D - DISCHARGE

12.87-12.97

COPPER PLATED STEEL

D - DISCHARGE

22.47

COPPER PLATED STEELROTOLOCK

I.D. inches

MATERIALROTOLOCK

I.D. inches

MATERIAL

S - SUCTION

1 1/4"12UNF2A

STEEL

S - SUCTION

1 3/4" 12UN

STEEL

D - DISCHARGE

3/4"16UNF2A

STEEL

D - DISCHARGE

1 1/4" 12UNF 2ASTEELBRAZING

I.D. mm

MATERIAL

S - SUCTION

22.35-22.45

COPPER PLATED STEEL

D - DISCHARGE

12.87-12.97

COPPER PLATED STEEL

L - LIQUID INJ.

3/8"

COPPER PLATED STEELROTOLOCK

I.D. inches

MATERIAL

S - SUCTION

1 1/4" 12UNF 2A

STEEL

D - DISCHARGE

3/4" 16UNF 2A

STEEL

L - LIQUID INJ.

3/8"

STEEL

LBP_2-6 HP

18

6.4 HERMETIC TERMINAL DIMENSIONS
Figure 6.4 Hermetic terminal

19

7. TECHNICAL SPECIFICATIONS

6.5 SIGHT GLASSTable 7.1 MBP - 3PH – 380V 50HZ

Figure 6.5 Sight glass

PRODUCTS

R404A

COP
(W/W)

1735

2.05

3560

1960

2.17

4250

4847

2173

2.23

6108

2747

2.22

2.22

6930

3011

3895

2.26

8512

10467

4628

2.26

7

12685

5609

8

13362

5908

SE6067GS-O

9

16418

SE6078GS-O

10

6.6 FREE INTERNAL VOLUME

SE6085GS-O
SE6089GS-O

Table 6.6a Compressor free internal volume for 3 phase motor

Table 7.2 MBP - 1PH – 220V 50HZCOMPRESSOR SIZE
2 HP

Power
Input
(W)

SE6015GS-O

2

3689

SE6018GS-O

2.5

4405

1864

1.98

3565

2105

2.09

4256

SE6021GS-O

3

SE6026GS-O

3.5

5016

2335

2.15

6322

2951

2.14

SE6030GS-O

4

7172

3235

SE6036GS-O

5

8809

SE6043GS-O

6

SE6053GS-O
SE6056GS-O

EMBRACO
MODEL

COP
(W/W)

Power
Input
(W)

1862

1.91

2081

1093

1.9

2103

2.02

2484

1236

2.01

4840

2332

2.08

2829

1369

2.07

6100

2948

2.07

3566

1731

2.06

2.3

6920

3231

2.14

4045

1897

2.13

3625

2.35

8500

3890

2.19

4969

2284

2.18

10114

4308

2.35

10100

4623

2.18

5904

2714

2.18

2.26

12257

5221

2.35

12240

5602

2.18

7155

3289

2.18

2.26

12911

5499

2.35

12893

5901

2.18

7536

3465

2.17

7259

2.26

15864

6757

2.35

15842

7251

2.18

9260

4257

2.18

18505

8182

2.26

17881

7616

2.35

17856

8173

2.18

10437

4798

2.18

12

20246

8863

2.28

19563

8250

2.37

19536

8853

2.21

11419

5198

2.2

13

21291

9320

2.28

20573

8676

2.37

20544

9310

2.21

12009

5466

2.2

Power
Input
(W)

COP
(W/W)

Cooling
Capacity
(W)

Power
Input
(W)

COP
(W/W)

PRODUCTSFREE INTERNAL VOLUME (L)LOW SIDE

HIGH SIDE

4.1

1

R404A
Power
Input
(W)

R449A

R452A

COP
(W/W)

Cooling
Capacity
(W)

Power
Input
(W)

COP
(W/W)

Cooling
Capacity(W)

HP

SE6015GK-C

2

3689

1897

1.94

3565

1766

2.02

3560

1895

1.88

2081

1112

1.87

SE6018GK-C

2.5

4405

2213

1.99

4256

2060

2.07

4250

2211

1.92

2484

1298

1.91

SE6021GK-C

3

5016

2464

2.04

4847

2294

2.11

4840

2461

1.97

2829

1445

1.96

SE6026GK-C

3.5

6322

3010

2.1

6108

2802

2.18

6100

3007

2.03

3566

1765

2.02

SE6030GK-C

4

7172

3300

2.17

6930

3072

2.26

6920

3296

2.1

4045

1935

2.09

3.5 - 5 HP

3.6

1

Testing conditions: EN12900 Te -10°C; Tc 45°C; Rg 20°C; No subcooling; Ta 35°C

6 HP

3.2

1

Table 7.3 LBP 3PH – 380V 50HZ

7 HP

7.3

0.9

10 - 13 HP

6.3

0.9

Table 6.6b Compressor free internal volume for 1 phase motor
COMPRESSOR SIZE

FREE INTERNAL VOLUME (L)LOW SIDE

HIGH SIDE

2 - 3 HP

3.6

1

3.5 - 4 HP

3.2

1

R134A

EMBRACO
MODEL

1

0.9

COP
(W/W)

Cooling
Capacity
(W)

3.8

6.5

R134A
Cooling
Capacity(W)

2.5 - 3 HP

8 - 9 HP

20

COP
(W/W)

Cooling
Capacity
(W)

R452A
Power
Input
(W)

It can be used for visual check of oil, its quantity,
composition or used for parallel multi compressor
connections. Recommended size of wrench for sightglass nut is 36mm applying torque 55÷60Nm.

HP

Power
Input
(W)

R449A
Cooling
Capacity(W)

Compressors are equipped and delivered with threaded
oil sight glass of size 1 ¼” 12UNF.

Cooling
Capacity(W)

PRODUCTS

R404A

HP

Cooling
Capacity(W)

Power Input(W)

SE2006GS-O

2

1261

SE2008GS-O

2.5

1610

SE2010GS-O

3SE2012GS-O

3.5

SE2014GS-O

R449A
COP (W/W)

Cooling
Capacity(W)

Power Input
(W)

1168

1.08

1171

1480

1.09

1495

1891

1722

1.1

2453

2233

1.1

4

2861

2376

SE2017GS-O

5

3395

SE2020GS-O

6

3977

EMBRACO
MODEL

R452A
COP (W/W)

Cooling
Capacity(W)

Power Input
(W)

1067

1.1

1241

1131

1.1

1352

1.11

1585

1434

1.11

1756

1572

1.12

1862

1668

1.12

2277

2040

1.12

2414

2163

1.11

1.2

2656

2170

1.22

2817

2302

1.22

2729

1.24

3152

2492

1.26

3342

2643

1.26

3172

1.25

3692

2897

1.27

3915

3072

1.27

Cooling
Capacity(W)

Power Input(W)

COP (W/W)

Cooling
Capacity(W)

Power Input(W)

COP (W/W)
1,09

COP (W/W)

Table 7.4 LBP 1PH – 220V 50HZ
products

R404A

R449A

R452A

HP

Cooling
Capacity(W)

SE2006GK-C

2

1261

1178

1,07

1171

1076

1,09

1241

1141

SE2008GK-C

2,5

1610

1510

1,07

1495

1379

1,08

1585

1463

1,08

SE2010GK-C

3

1891

1762

1,07

1756

1609

1,09

1862

1707

1,09

SE2012GK-C

3,5

2453

2281

1,08

2277

2083

1,09

2414

2209

1,09

SE2014GK-C

4

2861

2427

1,18

2656

2216

1,2

2817

2351

1,2

EMBRACOMODEL

Power Input(W)

COP (W/W)

Testing conditions: EN12900 Te -35°C; Tc 40°C; Rg 20°C; No subcooling; Ta 35°C

21

8. OPERATING CONDITIONS

8.3 SUPPLY VOLTAGES AND FREQUENCIESThe compressor must be selected according to the voltage and frequency conditions where the installation
will operate in the field.

8.1 AMBIENT TEMPERATURE
The ambient temperature surrounding the system strongly influences the compressor working conditions.
The system must be designed and tested in order to ensure that the compressor works (at normal andabnormal expected conditions in the field) within its admitted limits (see Chapter 8.4 - Operating envelopes)
at the max ambient temperature where the system will be installed.

CAUTION

A functional and efficient refrigeration system is the combination of various components, properly selected
and assembled in order to reach the pursued safety level and performance of the finished product andrespecting the admitted limits of each component.
The compressor is one of the system components: the information of these installation instructions relates
only to the Embraco compressors with their standard electrical components and accessories.

8.2 COMPRESSOR SELECTION
The hermetic scroll compressors are very specialized machines, designed:a) to work with a specific refrigerant

WARNINGWARNING

Verify that the voltage fluctuations are within the admitted limits of the selectedcompressor (see Table 10.1). Voltage must be measured at the compressor
electrical pins at the start and running at the max load.
As it is not allowed to run the compressors without the terminal cover properly
fixed on the terminal fence, this measurement must be taken outside the cover, as
close as possible to compressors pins.

Deviations of the supply voltage from the approved limits may impact the overload
protector actuation and damage the compressor and other parts.

For the compressor connection to the electrical supply line and formaintenance/repairing operation, refer also to Appendix 1 – Recommendations– safety instruction for compressors installation.

The correct sizing of the electric supply cables is important to guarantee low voltage drops at compressor startand during running under high load.

b) for a specific type of application (LBP or MBP)c) for electrical supply at 50 or 60 HZ with a certain supply voltaged) to deliver a certain cooling capacitye) to operate in certain admitted working rangef) to be properly installed

WARNING

Correct function of defined compressor and related electrical accessories ispossible only if requirements mentioned in points a)...f) are assured. Working outof the defined limits may result in malfunction of the compressor caused damages
to properties and injuries to persons.

The compressor cooling capacities at various evaporating temperatures, with condensing temperatures asparameter are indicated in the Technical datasheets in the Embraco Product Selector on www.embraco.com

8.4 OPERATING ENVELOPESThe The Operating Envelops represented in this section, are valid for all models of scroll compressors forcorrespondent application and refrigerant used.
Compressors are developed and approved as multirefrigerant solutions; means that the same compressors
model or Bill of Material can use different refrigerant based on customer need.
List of approved refrigerants is indicated in Table 6.2 – Approved refrigerants and/or Chapter 7 – Technicalspecification.
Scroll compressors are designed and approved:

MBP - up to 65°C of Condensing temperature for refrigerants

WARNING22

For each compressor use only the refrigerant indicated in Table 6.2 Approved
refrigerants. Usage of different refrigerant can generate abnormal working
conditions, excessive pressure in the refrigeration system, damages of thecompressor and explosions.

R404A, R449A, R448A, R452A; and up to 75°C withrefrigerant R134a, R513A

LBP - up to 65°C of Condensing temperature for refrigerants
R404A, R449A, R448, R452A

23

8.5 LOW AMBIENT OPERATION

Figure 8.4 OPERATING ENVELOPES
MBP - R449A /R448A

MBP - R404A/R452A
70

Tc (°C)

70

65

65

60

60

sh

55
50

Even if the compressor can work in low ambient conditions, the system may require specific design orrecommendations to ensure compressor working conditions to remain inside the application envelop.

Tc (°C)In the low ambient temperature, normally, the cooling load will be lower. To avoid the liquid flood back .
during the operation, the expansion device should be designed to maintain the minimum and stablesuperheat. Short cycle of start/stop should be avoided, see Chapter 8.10 – Compressor On/off cycling.

55

sh

50
45

45

k

40
35

The system should be verified by testing.

40

30

30

25

25

20

20

15

15

10

10

5

5

To prevent the flood start, a crankcase heater is required to avoid the compressor being the coldes point of
the installation. It has to be put in operation at minimum 12 hours before the first time start up. Despite theradial compliance of our scroll compressors, the usage of a suction accumulator can be required, according
to the refrigerant charge of the system and refrigerant charge limits of the compressor see Chapter 8.8 –Accumulator.

k

35

Te (°C)Te (°C)
-30

-25

-20

-15

-10

-5

0

5

10

-30

15

-25

-20

-15

-10

-5

0

5

10

15

HP control pressure management like fan speed controller or regulating pressure switch for the condenser
fan is required to ensure the discharge pressure will never be lower than the minimum saturated condensing
temperature of the compressor envelop. And also maintain the enough pressure difference between the
discharge and suction pressure, to guarantee the right operation of the expansion device.
If the refrigerant is charged on the site, the adequate refrigerant quantity should be monitored by the scale
before start the compressor.

LBP R404A/R452A/R449A/R448A

MBP - R134a/R513A
80

Tc (°C)

70

75

65

70

60

65

55

60

50

55

45

50

k

40

k

45

Tc (°C)

35

40

30

35

25

30

20

25

15

20

10

8.6 REFRIGERANT CHARGE

515Te (°C)Te (°C)
-20

-15

-10

-5

In case of ultra low ambient temperature; both the suction and discharge pressure inside the system
will be very low after a long time off period. When the compressor start up, because there is no enoughpressure difference between both sides of the expansion device, there will be no enough refrigerant to pass
the expansion device, the suction line pressure will be lower and the low pressure switch will cut off thecompressor running. In this case, because the pressure of the high side is also very low, it is impossible forthe suction pressure to arrive at the reset point of the low pressure switch, the compressor can't start again.
Some methods should be considered to maintain the pressure inside of the receiver during the long time off
period. Never short the circuit of the low pressure switch.

0

5

10

15

20

25

-40

-35

-30

-25

-20

-15

-10

-5

0

CAUTION

Avoid the liquid or gaseous refrigerants from vessel to come in contact with humanbody. Skin, eyes may be permanently damaged; use personal safety equipment(gloves, goggles).

5

Refrigerant charge amount depends from the internal volume of the system, its design and working conditions,from the type of refrigerants and safety limits.
For each system, the optimal refrigerant charge should be determined by appropriate lab tests in order to
optimize the working conditions and energy consumption.
LegendIt is recommended to charge the system using the weighted charge method, using high side of the system.

Tc: Condensing Temperature °C
Te: Evaporating Temperature °C
k: Operating condition. Ambient 35oC, return gas temperature 20oC
sh: Superheating area; 11.1k

24

WARNING

Do not exceed the recommended charge limits or implement safety device (i.e.
suction accumulator). Never charge liquid to the low side at the start of thecharging procedure, refer to Chapter 11.6 - Charging process.

25

Table 8.6 MAXIMUM RECOMMENDED REFRIGERANT CHARGE FOR ALL
APPROVED REFRIGERANTSCOMPRESSOR SIZEMAXIMUM CHARGE (KG)

2 HP

2.8

2.5-3 HP

3.5

3.5-5 HP

4.5

6 HP

5.5

7 HP

6.5

8-9 HP8

10-13 HP

10.5

Due to the inherent ability of scroll to handle liquid refrigerant in flooded start and defrost cycle operation
conditions, accumulators may not be required. An accumulator is suggested on single compressor 2-6
hp systems when the charge limitations exceed 4.5kg, and on the single compressor 7-12 hp systems
when charge limitations exceed 8kg. On systems with defrost schemes or transient operations that allow
prolonged uncontrolled liquid return to the compressor, an accumulator is required unless a suction headerof sufficient volume to prevent liquid migration to the compressor is used.

Excessive liquid flood back or repeated flooded starts will dilute the oil in the compressor causing inadequate
lubrication and bearing wear. Proper system design will minimize liquid flood back, thereby ensuring
maximum compressor life.

SE scroll compressors are tolerant to liquid refrigerant, despite it, Embraco recommends avoiding this running
condition. If the refrigerant charge is higher than the limits listed in the upper table, it is recommended to use
additional protections in the system to ensure proper running conditions (piping design, suction accumulators,
crankcase heaters, pump down).

8.7 CRANKCASE HEATER
Figure 8.7 Crankcase heater
dimension

8.8 ACCUMULATORS

Crankcase heater is used to prevent refrigerant
migration into the compressor shell during compressor
off. It is suggested to be installed on all compressors forrefrigeration application. It should be active at minimum
12 hours before the first compressor start and be active
when compressor is off. This will prevent oil dilution andbearing stress on initial start up.
The crankcase heater must be mounted below theoil sight glass approximately 10-40 mm from thecompressor bottom.

In order to assure that liquid refrigerant does not return to the compressor during the running cycle,
attention must be given to maintaining proper superheat at the compressor suction inlet. Recommended
is 5-8K superheat, measured on the suction line 150mm from the suction port, to prevent liquid refrigerant
flood back.

Another method to determine if liquid refrigerant is returning to the compressor is to accurately measure
the temperature difference between the compressor bottom shell and the suction line. During continuous
operation we recommend that this difference be a minimum of 25°C. To measure oil temperature throughthe compressor shell, place a thermocouple on the bottom center (not the side of the suction) of thecompressor shell and insulate from the ambient.

During rapid system changes, such as defrost or ice harvest cycles, this temperature difference may drop
rapidly for a short period of time. When the crankcase temperature difference falls below the recommended
25°C; duration should not exceed a maximum (continuous) time period of two minutes and should not golower than a 12°C difference.

Table 8.7 Recommended crankcase heaters
ALTERNATIVE 1

ALTERNATIVE 2

VOLTAGE(V)

NOMINAL
POWER(W)

LENGTH(mm)

VOLTAGE (V)NOMINAL
POWER(W)

LENGTH(mm)

SE6015-SE6043

220

70

490

230

70

480

168

SE6053-SE6089

220

90

590

230

70

570

197

SE2006-SE2020

220

70

490

230

70

480

168

MODEL

COMPRESSORDIAMETER(mm)

The compressor is safe to start without crankcase heater when the refrigerant charge quantity is less thanrecommended charge limit (see Table in Chapter 8.6). but nevertheless Embraco recommends usage of the
crankcase heater.

26

8.9 PUMP DOWN RECOMMENDATIONS
Refrigeration scroll compressors use a low-leak discharge valve to prevent high pressure backflow into
the low side. Typically, this check valve prevents system pressures from equalizing and pump down canbe achieved. If short cycling cannot be avoided, using a 3-minute time delay will limit the cycling of thecompressor to an acceptable level.

For the single phase MBP compressors, there is a small balance port on the discharge check valve tobalance the high and low side inside of the compressor when the compressor is stoped, if pump down isapplied, an external check valve on the discharge line is suggested.

27

8.10 COMPRESSOR CYCLING
System normal cycling is 6-12 cycles per hour (depending on application);with sufficient continuous run time to ensure the proper return of the oil to thecompressor and enough motor cooling.
IMPORTANTThe suggested minimum continuous running time is 3 minutes. To avoid frequent
start/stop, the minimum interval between the stop and next start is 3 minutes.

Table 8.12 12 Discharge gas maximum pressures/temperature
MPA (rel)BAR (rel)

AT CONDENSINGTEMPERATURE (°C)

MAXIMUM
DISCHARGE GASTEMPERATURE
CONDITIONS
(°C)

2.77

27.7

60

125

2.72

27.2

60

125

2.60

26.0

60

125

R404A

3.10

31.0

65

125

R452A

3.06

30.6

65

125

2.92

29.2

65

125

R134A

2.26

22.6

75

125

R513A

2.22

22.2

75

125

PULL-DOWN MAXIMUM PEAK
REFRIGERANT

R404A
R452A
R449A

It is recommended to use delay timer to limit compressor cycling.
Compressor pumps oil in the system (small weight percentage of the pumped refrigerant) during running.
At compressor starting oil may be pumped in higher amount; after each start the compressor has torun for an enough long time (depending on system design) to assure the oil returns to the compressor.
Contact Embraco Technical support team if more info is needed.

WARNING

Significant increase of cycling may impact oil circulation and overheat the motor.
It results in early damage of the compressor motor and in single phase application
to demage of its components - relay, start and run capacitor.

APPLICATION

LBP

R448A

R449A
R448A

MBP

Do not use the compressor for pressurizing the system to check the pressostat
limits.
IMPORTANT

8.11 SHELL TEMPERATUREWARNING

System component failure may cause the top shell and discharge line to briefly
reach temperatures above 150°C. Materials (e.g. wires), which could be damagedby these temperatures, should not come in contact with the shell.

The high pressure and low pressure cut-out eventually used should have a manual reset feature for thehighest level of system protection.

IMPORTANT

Ensure that the discharge gas temperature is always higher than the saturation
temperature (including during compressor start after long stop and defrost).

8.13 DISCHARGE LINE THERMOSTATCAUTION

The plastics used on the installation bases where the compressor is installed must
be self-extinguishing.

8.12 MAXIMUM DISCHARGE GAS PRESSURES AND TEMPERATURES
Systems shall be designed for Maximum operating pressures according to applicable standards (EN 378 orsimilar applicable standards) that must not be exceeded.

CAUTION28

In any case, for Embraco compressors the maximum pressure peak, during "PullDown”, the maximum pressures under continuous running and the maximum
discharge gas temperature under continuous running, shall be kept below thevalues indicated in follow Table:

8.13.1 DISCHARGE LINE THERMOSTAT FOR LBP
A discharge line thermostat can be required in the compressor control circuit. The thermostat has a cut out
setting that will insure discharge line temperatures below the 125°C maximum limit. It should be installed
approximately 160 mm from the discharge tube outlet. If a service valve is installed at the discharge tube, thethermostat should be located 130 mm from the valve braze. For proper operation in extremely low outdoor
ambient conditions, it is recommended to insulate the thermostat to protect it against a direct air stream.

8.13.2 DISCHARGE LINE THERMOSTAT FOR MBP
Operation above, or on the left side of the operation envelope can cause high compression ratio or excessiveinternal compressor temperatures. This will result in overheating of the involutes, causing excessive wear resulting
in premature compressor failure. If the system design can’t guarantee to operate inside the operation envelope,then the discharge line thermostat is required in the compressor control circuit. The suggested highest cut out
setting for the discharge line thermostat is 125°C; it should be installed approximately 170 mm from the discharge
tube outlet, or approximately 130 mm from the valve outlet port.

29

8.14 PRESSURE CONTROLS

9.2 PAINTING

Both High and Low pressure switches are required on the compressor. The suggested cut out settings areindicated in below Table:

The compressor paint resists corrosion for the exposure of 5% natural salt spray of 600 hours.

9.3 GROMMETS AND SLEEVES

Table 8.14 Pressure controls settings
R404A
Application
Type

MBP
LBP

R449A

Control
Type

Mpa
(rel)

Bar
(rel)

Mpa
(rel)

Bar
(rel)

Low

0.20

2.0

0.16

High

3.24

32.4

Low

0.13

High

2.90

R448A
Mpa
(rel)

Bar
(rel)

R452A

R134A

Mpa
(rel)

Bar
(rel)

Mpa
(rel)

Bar
(rel)

1.6

0.18

1.8

0.13

1.32

2.39

23.9

3.13

31.3

2.39

23.9

1.3

0.10

1.01

0.12

1.2

--

--

29.0

2.73

27.3

2.82

28.2

--

--

R513A
Mpa
(rel)

Bar
(rel)

Embraco supplies mounting grommets that further reduce the transmission of vibration and reaction to the
fixing points and tube of the system. Base plate of the installation must have sufficient mass and stiffness
to further reduce transmission of residual vibrations.
Components of this external suspension system are supplied partly by Embraco (rubber grommets andsleeves) while the remaining components for their blocking - screws, washers and nuts, have to be sourced
by the customer. It is recommended to use screw M10 with tightening torque 12-14Nm.

Figure 9.3 Grommets and sleeves basic dimensions

8.15 INTERNAL PRESSURE RELIEF VALVE (IPR VALVE)
Scroll refrigeration compressors with 3 phase motor have internal pressure relief valves (IPR valve), which
open at a discharge to suction differential pressure of 2.76 – 3.10 Mpa (27.6-31 Bar). This action will trip the
motor protector and remove the motor from the line.
Single phase compressor are not equipped with IPR valve as motor is under lower overload ability andproperly protected by OLP only.

9. INSTALLATIONS
9.1 SYSTEM COMPONENTS COMPATIBILITY

IMPORTANTFor condensing units with scroll compressors it is recommended to use rubber grommets which are delivered
together with compressors.

9.4 MOUNTING FOR RACK SYSTEMSAll refrigeration system components shall be compatible with all approved refrigerants: R404A, R452A,
R449A, R448A, R134a, R513A and the oil charged in the compressor. Substances containing chlorine,
mineral oils, paraffin and silicone are not allowed.
All equipment used in the refrigerator manufacturing process that require lubricationand may come into contact with the refrigeration system components, must use
exclusively polyolester oil as a lubricant (suggested viscosity 32 cSt @ 40°C).
IMPORTANT

30

Particular attention must be given to the internal cleanliness of the system, see
Chapter 11.1 – System cleanliness, avoid entering into the system of any solid residues(dust, brazing flux, metal particles, etc.), humidity and free of debris or any particles
including copper residues.

It is very important that these components are assembled correctly in order toguarantee the proper clearance (approximately 1.5mm) between the rubber
grommet and flat washer, fixed between nut and sleeve.

IMPORTANTThe usage of standard grommets is not recommended for most refrigeration scroll
rack installations. These grommets allow for excessive movement that will resultin tube breakage, unless the entire system is properly designed.

For rack applications, it is recommended to use special grommets made of steel. Grommets should be formulated
from a hardened material specifically designed for refrigeration applications. Hardened material limits compressor
motions, which minimize potential problems of excessive tubing stress. Adequate insulation is provided to prevent
vibration from being transmitted to the mounting structure. This mounting arrangement is recommended for
multiple compressor rack installations. For more information, contact Embraco Technical Support team.

31

9.5 SCREENS

9.7 SOLENOID VALVE

Screens with a mesh size finer than 30 x 30 (0.6mm openings) should not be used anywhere in the systemwith scroll compressors.

A solenoid valve with a minimum 3mm orifice must be provided in the injection circuit that opens wheneverthe compressor is operative or cooling is required during pump down. The solenoid must be closed when
the compressor is cycled off.
Note: Not required if DTC valve is used.

9.6 LIQUID INJECTION
Scroll compressor for LBP application is supplied with an injection port suitable for connection to aliquid refrigerant source. This port is connected to an inner pocket of the scroll mechanism. As pocket isperorated from the suction inlet, there is no loss of replacement capacity results from injection at this point.
Refrigerant injected in this manner must include the system components listed on the following instructions.

IMPORTANT

Failure to follow these instructions can result in liquid refrigerant completely filling thescroll during an “off” cycle. When power is reapplied in this condition, the hydrauliceffect produced can result in pressures high enough to cause permanent damage tothe compressor scroll sets. It is a condition of warranty that these components areproperly installed.

The advantage of this type of injection system is that it tends to be self regulating i.e., as the pressure
differential across the capillary tube increases, the amount of liquid fed to the compressor also increases.
Since more cooling is needed at high compression ratio conditions, this “automatic” increase in liquid
feed is exactly what is needed. For the liquid injection system to be effective, a minimum of 3K subcooled liquid at the capillary inlet is required. However, DO NOT use mechanically cooled sub-cooled
liquid. The cap tube will be oversized under this condition and will dilute the oil in the compressor shell.

9.8 CURRENT SENSING RELAY
To prevent the solenoid valve from remaining open during a motor protector trip, current sensing relay must
be sensitively designed to act whenever the compressor is off, and closes the solenoid to stop injection.
Note: These parts are Not required if DTC valve is used.
The following components are not required, but they are recommended for liquid injection:• Sight Glass just before the capillary tube inlet is recommended to allow visual inspection for the presenceof liquid refrigerant.
• Filter/Drier installed in the injection circuit is recommended to avoid the possibility of capillary tube
blockage due to contaminants.

9.9 TEMPERATURE RESPONSIVE EXPANSION VALVE (TXV)CONDENSERDTC VALVEEVAPORATOR

It is possible to use a TXV (temperature responsive expansion valve) valve to realize the liquid
injection. When the discharge temperature is higher than the settings, the valve will open. Basedon discharge temperature detected by the bulb, valve opening degree is set. Liquid refrigerant will be
fed into the injection port; the injection flow will change according to the discharge temperature.
The purpose of this valve is to eliminate the need for a capillary tube on the LBP scroll model family.

Suggested valve specifications: Opening Setpoint: 90°C ±3°C

RECEIVERSCROLLCOMPRESSOR

The valve bulb must be installed properly on the thermal top cap to adequately control scroll temperatures.
The valve should be tightened on the injection fitting to a torque of 25 - 28 Nm.
A 90° orientation on the valve is recommended, however it will function properly in any orientation.
Avoid contact of capillary tube (connecting the valve to the bulb) with compressors during operation. Do notbend the capillary tube within 25mm of the valve.

FILTERDRIER

SIGHT GLASS32

SOLENOID VALVE

33

Figure 9.9 Assembly of valve bulb

9.12 CONNECTORS
9.12.1 COMPRESSOR PRESSURIZATION
Compressors are delivered pressurized to a pressure of about 0.3-0.35 bar with dry nitrogen and must be
evacuated before implemented in the system.
We suggest removing the rubber plugs from the connectors of the compressor (keep it in upright position) in
the following sequence: discharge, suction. The rubber plugs should be removed with care to avoid oil loss.
The compressor tubes are sealed with caps to avoid contamination by external air and humidity entering
inside the compressor.

9.12.2 CONNECTORS BRAZING PROCESS
Welders must be trained and qualified technicians and all applicable safety regulations and proceduresmust be adopted.
Do not allow the flame from the torch to reach the housing during the brazingof the compressor connectors in order to avoid overheating, damages and oil
carbonization on the compressor's internal shell wall.

9.10 SUGGESTED APPLICATION TECHNIQUESCAUTION

For the most efficient thermal sensing, spread a thin film of thermal grease around the DTC Valve bulb
before installing into the top cap well. However for proper functioning of the valve this is not required.
At your discretion, field serviceability can be improved by installing a shut-off valve in the liquid line justbefore the DTC Valve. The valve requires a solid column of liquid. A liquid line sight glass could be applied
to visually insure liquid flow.
IMPORTANTDo not allow the flame from the torch to approach the "hermetic terminal (fusite)”in order to avoid the cracking of the glass insulating material of the pins andsubsequent refrigerant, oil leaks and short circuits.

To minimize any entry of contaminants and humidity, the compressor should
remain open no more than 3 minutes between the extraction of the tube rubber
plugs and the system tubes brazing.

9.11 COMPRESSOR OR VALVE SERVICE
1. Replacing a LBP scroll compressor using capillary tube, liquid injection solenoid and current sensing relay:
The compressor and DTC Valve eliminate the need for the solenoid and current sensing relay. These
devices may be left on if desired, but they are not required.

System components should remain sealed as long as possible before their assembly. The brazing of
the components to the system should be carried out no later than 15 minutes after their assembling.
We suggest removing the rubber plugs from the connectors of the compressor (keep it in upright position)in the following sequence: discharge, suction.

2. Replacing a LBP compressor using the DTC Valve:
We recommend replacing both the DTC Valve and the compressor at the same time. If you wish to use
the existing DTC Valve, the valve filter should be taken out and cleaned and/or replaced.
3. Replacing a DTC Valve on a LBP compressors:
Before replacing the DTC Valve, clean and/or change the filter to verify there is an unobstructed columnof liquid to the valve.

3435

9.12.3 TUBE BRAZING•

Disconnect compressor from electrical wiring.

•

The copper plated steel connectors on scroll compressors can be brazed in approximately the samemanner as any copper connector.

•

Recommended: brazing material with a minimum of 5% silver.

•

Use of a dry nitrogen purge to eliminate possibility of carbon buildup on internal connector surfaces isrecommended.

•

Be sure process connector fitting I.D. and process connector O.D. are clean prior to assembly.

•

Remove the discharge plug at first, and then remove the suction plug.

•

Apply heat in copper connector. As connector approached brazing temperature, move torch flame to the joint.

•

Heat the joint area until braze temperature is attained, moving torch up and down and rotating aroundconnector as necessary to heat connector evenly. Add braze material to the joint while moving torch
around circumference.

•

After braze material flows around joint, move torch to heat fitting. This will draw the braze material down into
the joint. The time spent heating the compressor connector close to the compressor shell should be minimal.

•

As with any brazed joint, overheating may be detrimental to the final result.

9.12.4 TUBE DISCONNECTS
Recover refrigerant from both the high and low side of the system. Failure to doso may result in serious personal injury.
WARNING••

Check the high and low pressure side with pressure gauge to make sure there
is no pressure inside.
Heat joint area until the braze material softens and pull out the tube.

As there is a check valve close to discharge connector, take care to not overheat it and prevent brazing
material to flow into it.
Compressor mounting must be selected based on application. Consideration must be given to soundreduction and tubing reliability. Some tubing geometry or “shock loops" may be required to reduce vibrationtransferred from the compressor to external tubing.

9.12.5 TUBING SELECTION
Proper tube design must be taken into consideration when designing the tubing connecting of the scroll to theremaining system. The tubing should provide enough “flexibility” to allow normal starting and stopping of thecompressor without exerting excessive stress on the tube joints. In addition, it is desirable to design tubing witha natural frequency away from the normal running frequency of the compressor. Failure to do this can result intube resonance and unacceptable tubing life, Figure 9.12 shows examples of acceptable tubing configurations.
The examples are intended only as guidelines to depict the need for flexibility in tube designs. In order toproperly determine if a design is appropriate for a given application, samples should be tested and evaluatedfor stress under various conditions of use including voltage, frequency, and load fluctuations, and shipping
vibration. The guidelines above may be helpful; however, testing should be performed for each system designed.

36

Figure 9.12 Tubing configurations

50 mm or less

CLAMP
CONTINUOS TUBING(NO ELBOWS)

SOLENOID(MUST BE SECURED)WARNING< 500 mm

Notes:•

The above tubing configurations are guidelines to minimize tube stress.

•

Follow similar guidelines for discharge tubing and oil return tubing if needed.

•

In case of tube length of over 500 mm is required, intermediate clamps may be necessary.

•

Do not hang weights on tubing (e.g. filter drier on suction tubing), allowed positions for weight hanging isclose to clamps or header.

•

Tube runs of less than 200 mm is not recommended.

•

Pipe connection to compressor should be made as short as possible (e.g. 50 mm or less) but still assuring aproper braze joint.

The above tubing recommendations are base on the lowest possible amount of joints. The use of continuous
tubing is preferred.

Recommendations:
Use the copper tube special for refrigeration application, make sure there are no residual moisture, dust andimpurities inside the copper tube, keep clean and dry. Remove the plug until to use it. Use special tool - tube
cutter to cut the copper tube. Never cut the copper tube with a saw. Vacuum from both high pressure side andlow pressure side, make sure all valves (including liquid line solenoid valve) are “on”.
Vacuum standard: Suggest to vacuum the system to below 60Pa (500umHg). Use vacuum gage to measure
the vacuum degree. The gage should be put on the far end of the pump.
Never use scroll compressor to vacuum the system. During the brazing copper tube, charge the dry nitrogen
into the tube continuously to avoid forming the oxide skin inside the copper tube.

9.13 CONNECTIONSScroll compressor connectors (suction, discharge and injection) are made of copper plated steel. They are
more robust and less prone to leaks than copper tubes. Connectors are delivered with fitted rubber plugs.
Embraco offers 2 connection types: brazing and Rotolock, as per follow Table:

37

Table 9.13 Available connections
BRAZING CONNECTIONROTOLOCK CONNECTION

I.D. mm

I.D. inches

10. ELECTRICAL SPECIFICATIONSCONNECTIONS

SHELL
SIZE

SuctionDischarge

SuctionDischarge

2 - 6 HP

22.35 - 22.45

12.87 - 12.97

1 1/4“

3/4"

7 -13 HP

28.83

22.47

1 3/4"

1 1/4"

10.1 MOTOR TYPES
Each compressor model has specific electrical components, indicatedin the compressor Technical Datasheet in Embraco Product Selector on
www.embraco.com

CAUTION

Avoid usage of different components.

9.14 ROTOLOCK VALVES
Embraco offers as additional accessories Rotolock valves. Available sizes and tightening torques areindicated in below Table:

Table 9.14 Available connections
ROTOLOCK
VALVE

ODS

TIGHTENING TORQUE
(Nm)

1/2"

3/4" - 16UNF

40

3/8"

This motor has a start capacitor and a run capacitor. The start capacitor is connected in parallel with the runcapacitor during the compressor start-up and it is disconnected by a starting relay (voltage type) at the end of
the starting; the run capacitor is permanently connected in series with the start winding. Both running and startwindings remain connected even after the motor starts.
3Ø (Three-phase)Three-phase winding with star connections, this motor doesn’t need a starting device.

5/8"
3/4"

1 1/4"-12UNF

CSR (CSCR) (Capacitive Start & Run - Capacitor Start Capacitor Run)

90

7/8"
1 1/8"
1 1/8"

1 3/4"-12UN

120

1 3/8"WARNING9.15 ADAPTERS
Brazing connections can be converted to thread Rotolock connection using additional accessory – Adapter,for both suction and discharge connectors. Available sizes and tightening torques are indicated in below
Table:

Table 9.15 Adapter specification
ADAPTERODS

TIGHTENING TORQUE(Nm)

3/4" - 16UNF

3/8"

40

1 1/4"-12UNF
1 3/4"-12UN

5/8"
7/8"
1 1/8"

38

It is allowed compressor operation within Voltage working range indicated in
below Table:

VOLTAGECODERATED VOLTAGE& FREQUENCYCOVOLTAGE WORKING RANGE (*)

MINIMUM STARTING VOLTAGE (*) (**)

50HZ

60HZ

50HZ

60HZ

220V 50Hz 1~

198V – 242V

--

187V

--

380-420V 50Hz /460V 60Hz 3~

342V – 462V

414V – 506V

323V

391V

(*) With compressor working or starting within the approved Operating Envelopes,
see Figure 8.4

90
120
WARNING

IMPORTANT

Operation of motor-compressor at different rated voltage than assigned (marked on
the label) may result in improper function of motor-compressor, missing actuation of
overload protection or even to damage or motor-compressor and/or its accessories.

It is recommended to periodically check all type of connections (piping, Rotolock,fixing).

(**) Minimum starting voltage refers to the minimum voltage at the compressor
pins during the compressor start, It does not represent the voltage at the power
supply outlet.

39

10.2 ELECTRICAL COMPONENTS TYPESCAUTION

10.3 ELECTRICAL CONNECTIONS AND WIRING DIAGRAMSThe electrical components specified for each Embraco compressor model
are indicated in the Technical Datasheet or Embraco Product Selector on
www.embraco.com

CAUTION

The electrical connections to the compressor must be carried out according to
the wiring diagrams indicated below or in the Embraco Product Selector on
www.embraco.com
Wiring diagram is printed in compressor plastic cover, including indication of terminals.

The type of electrical components for each type of electric motor is indicated in Table 10.2. and is supplied ascompressor equipment.

WARNINGUse of other electrical components than the ones approved by Embraco (listed in theTechnical Datasheets and in Embraco Product Selector on www.embraco.com foreach specific model) or their exclusion may damage the compressor and other partsand cause serious injury to persons.

Figure 10.3a Wiring diagrams
SM31_3 PHASE

SM30 - CSR SINGLE PHASE

CSR boxes are delivered without connection cables as their length depends on installation where will beassembled. Recommended wire section for connection cables is 11 AWG as indicated in below Table 10.2.

Table 10.2 Electrical components types
PROTECTOR

STARTING DEVICECAPACITORSCSR BOXINTERNAL

VOLTAGE RELAY

START

RUN

RECOMMENDEDWIRE SECTIONSINGLE PHASE
CSR

✓

✓

✓

✓

11AWG

3 PHASE

✓

X

X

X

X

MOTOR TYPE

10.2.1 ELECTRICAL COMPONENTS SPECIFICATION OF SINGLE PHASEAPPLICATION

MBP

LBP

40

EMBRACO MODEL

START CAPACITORRUN CAPACITOR

STARTING DEVICE

SE6015GK-C

160µF 330V

60µF 450V

HLR3800-3E3D

SE6018GK-C

160µF 330V

60µF 450V

HLR3800-3E3D

SE6021GK-C

160µF 330V

60µF 450V

HLR3800-3E3D

SE6026GK-C

250µF 330V

80µF 450V

HLR3800-3H3D

SE6030GK-C

250µF 330V

80µF 450V

HLR3800-3H3D

SE2006GK-C

160µF 330V

60µF 450V

HLR3800-3E3D

SE2008GK-C

160µF 330V

60µF 450V

HLR3800-3E3D

SE2010GK-C

160µF 330V

60µF 450V

HLR3800-3E3D

SE2012GK-C

250µF 330V

80µF 450V

HLR3800-3H3D

SE2014GK-C

250µF 330V

80µF 450V

HLR3800-3H3D

Figure 10.3b Wiring diagrams keys
POTENTIAL RELAY

SINGLE PHASE MOTORRUN CAPACITOR

EARTH CONNECTION

START CAPACITORCONNECTION SUPPLIED

3-PHASE MOTORCONNECTION TO BE MADE BY THE CUSTOMER(NOT SUPPLIED)

41

10.4 MOTOR PROTECTION

10.6 CSR BOX

Compressors are protected against overheating by the conventional inherent internal line break motor
protection, mounted on the motor windings.

Figure 10.6 CRS Box

The OLP (Overload protector) detects unusual motor temperature rise and/or abnormal high current
input. The OLP trip is influenced by several factors - working conditions, suction gas density/
temperature, supply voltage, etc.

10.4.1 OVERLOAD PROTECTOR PARAMETERS
Table 10.4.1
DISC TEMPERATURE °C
OPEN (±5 °C)

CLOSE (±9 °C)

TIME CHECK(A)RESET TIME
(SEC)

Single phase

105

61

65

2~10

Single phase

115

61

78

2~10

Three phase

115

60

25

3~10

Three phase

120

60

32

3~10

Three phase

120

60

42

3~10

Three phase

145

60

41

3~10

Three phase

140

60

52

3~10

Fusite pin orientation for both single-phase and three-phase scroll compressors is the same, shown in
Figure 10.7 and in gasket inside of the terminal box.

SE6053GS-SE6067GS

Three phase

140

70

78

3~10

Figure 10.7 Fusite pin

SE6078GS-SE6089GS

Three phase120

60 ± 1090

3~10SE2023GS-O

Three phase

140

60

52

3~10

SE2028GS-O

Three phase

140

70

78

3~10

SE2031GS-O

Three phase

140

70

78

3~10

SE2039GS-O

Three phase120

60 ± 10

90

3~10

MODEL
SE6015GK-SE6021GK
SE2006GK-SE2010GK
SE6026GK-SE6030GK
SE2012GK-SE2014GK
SE6015GS
SE2006GS-SE2008GS
SE6018GS-SE6021GS
SE2010GS
SE6026GS-SE6030GS
SE2012GS-SE2014GS
SE6036GS
SE2017GS
SE6043GS
SE2020GS

PHASE

10.7 FUSITE PIN

Legend10.5 DEGREE OF PROTECTION

T1 (C): Common
T2 (S): Start
T3 (R): Run

The degree of protection provided by the terminal cover and CSR box supplied with the compressor is IP21, where:
2 – protected against solid objects over 12.5 mm (fingers or similar)
42

1 – protected against vertically falling drops of water or condensation

43

10.8 TERMINAL COVER MOUNTING AND REMOVAL
It is not allowed to run the compressor without terminal cover properly fixed on
the terminal fence.
Before connecting a compressor, make sure that terminal cover for electricalprotection is properly seated.
CAUTIONThe non-use or improper positioning of the terminal cover may expose theelectrical technician the risk of electric shock and fire.
Before removing the terminal cover, check if the compressor is disconnected fromthe mains and disconnect all electrical components of compressors.

The terminal cover is properly fixed if side teeth lock-on holes on terminal fence.
Cover removing has to be provided with appropriate tool (e.g. screwdriver) pushing side teeth.

10.10 BRIEF POWER INTERRUPTIONS
Brief power interruptions (less than 0.5 second) may result in powered reverse rotation of single-phase
refrigeration scroll compressors. High-pressure discharge gas expands backward through the scrolls at
power interruption causing the scroll to orbit in the reverse direction. If power is reapplied while thisreversal is occurring, the compressor may continue to run noisily in the reverse direction for several
minutes until the compressor internal protector trips. This has no negative effect on durability. Whenthe protector resets, the compressor will start and run normally. Recommended is to use a timer which
can sense brief power interruptions and lock the compressor out of operation for two minutes. A threeminutes time delay is also suggested on three phase models to prevent frequent start/stop.

10.11 ELECTRICAL SUPPLY LINE AND CABINET SUPPLY CABLE

Figure 10.8 Terminal cover
WARNINGWARNINGThe electrical supply line of the finished product must be protected against overcurrent, short-circuit, short-to ground. A Residual-Current Circuit Breaker (RCCB)
must be adopted. Design, components and installation must comply with theapplicable National and International Standards and regulations. The compressor
must be properly connected to ground.

Cables of the installation and of the compressor must be designed for appropriate
temperature, due to ampere load, and for voltage drop (see Table 10.1) taking into
consideration the max input current of the finished product and the compressor
LRA (Locked Rotor Amp), indicated for each model in the compressor label andEmbraco Product Selector on www.embraco.com and in Chapter 10.13

In any case, the supply cable, as well as all other installation cables, must be designed and protected inorder to comply with the applicable International standards and regulation, as well the National Standards
and regulations of the country where the system will operate.

10.9 THREE-PHASE ROTATION DIRECTION
Scroll compressors are directional dependent: i.e., they will compress in one rotational direction only.
On single phase compressors, this is not an issue since they will only start and run in the proper
direction (except as described in the Brief Power Interruptions, Chapter 10.10). Three-phase scrolls,
however, will rotate in either direction depending on the power of the phasing. So there is a 50/50
chance of connected power being “backwards.”
Verification of proper rotation can be made by observing that the suction pressure drops and thedischarge pressure rises when the compressor is energized. Additionally, if operated in reverse thecompressor is noisier and its current draw is substantially reduced compared to tabulated values.
Although operation of scroll in reverse direction for brief periods of time is not harmful, continued
operation could result in failure. All three-phase compressors are wired identically internally. Once thecorrect phasing is determined for a specific system or installation, connecting properly phased power
leads to the same fusite terminals will maintain the proper rotation.

44

WARNINGFor the compressor connection to the electrical supply line and for maintenance/
repairing operation, refer also to Appendix 1 - Recommendations - safety
instruction for compressor installation.

10.12 MAXIMUM TEMPERATURE OF ELECTRIC MOTOR WINDINGSThe temperature of the motor windings should not exceed 130°C max. under normal running conditions.
The wiring temperature can be measured while the compressor is running through suitable equipment, or
through the method of ohmic resistance measurement, by disconnecting the compressor supply.

CAUTION

The compressor shall be connected to the supply line only when the hermetic
terminal cover is properly fixed. When the compressor is energized, all the electricalmeasures must be done outside the cover.

45

The ohmic resistance measurement method requires the compressor to be stabilized at the ambient
temperature and the availability of instruments for measuring the ohmic resistance (digital Ohmmeter,
Whetstone’s bridge) and the temperature.

Table 10.13b Electrical data of single motor (220V 50Hz), R449A
APPLICATIONa) Measure the ohmic resistance Rf of the main winding (run) between
the pins of the hermetic terminal C “common” and R “run”. Measure
the corresponding stabilized reference temperature Tf.
b) Measure the ohmic resistance Rc of the main winding (run) between
the pins C and R with hot motor, at the working conditions to which
you intend to measure the motor temperature.

MBPc) Calculate the above hot motor temperature Tc with the following
formula:Calculation formula for Cu winding:

LBP

MODEL

Rated
load
amps
RLA (A)

LockedMax
Run Winding
Start Winding
rotor
operatingResistanceResistanceamps
current (±10%) at 25°C (±10%) at 25°C
LRA (A) MOC (A)(Ω)(Ω)

SE6015GK-C

8,4

76

16,2

0,7

1,4

SE6018GK-C

9,8

76

17,2

0,7

1,4

SE6021GK-C

10,9

76

19

0,7

1,4

SE6026GK-C

13,3

109

25,7

0,5

1,3

SE6030GK-C

14,6

109

28,1

0,5

1,3

SE2006GK-C

5,1

76

13,4

0,7

1,4

SE2008GK-C

6,6

76

14,2

0,7

1,4

SE2010GK-C

7,7

76

16,2

0,7

1,4

SE2012GK-C

9,9

109

21,3

0,5

1,3

SE2014GK-C

10,5

109

23,3

0,5

1,3

Where:
Tc = Unknown temperature with hot motor
Tf = Motor temperature measured at the stabilized reference temperature
Rc = Measured ohmic resistance, corresponding to the Tc temperature

Maximum operating current (MOC) is the maximum current value which compressor can operate steadily.

Rf = Measured ohmic resistance, corresponding to the Tf temperature

Table 10.13a Electrical data of three phase motor (380V 50Hz), R449A
APPLICATION

MBP

LBP

46

MODEL

Rated loadamps
RLA (A)

Lockedrotor amps
LRA (A)Max
operatingcurrent
MOC (A)

10.14 DEFINITIONSRun Winding
Resistance(±10%) at 25°C(Ω)

SE6015GS-O

3,1

22

5,2

6,7

SE6018GS-O

4,4

45

6,4

3,3
3,3

SE6021GS-O

4,6

45

6,9

SE6026GS-O

6

60

9,2

3,3

SE6030GS-O

6,4

60

10,3

2,45
2,45

SE6036GS-O

7,1

60

12,2

SE6043GS-O

8,2

65

14,3

1,9

SE6053GS-O

10,9

117

17,3

1,09

SE6056GS-O

11,2

117

18,4

1,09

SE6067GS-O

12,6

117

21

1,09

SE6078GS-O

13,7

121

23,6

1,06

SE6085GS-O

14,5

121

26,5

1,06

SE6089GS-O

15,1

121

27,6

1,06

SE2006GS-O

2,2

22

3,8

6,7

SE2008GS-O

2,6

22

4,4

6,7

SE2010GS-O

4

45

5,8

3,3

SE2012GS-O

5,2

60

7,5

2,45

SE2014GS-O

5,6

60

8,8

2,45

SE2017GS-O

5,9

60

10,3

2,45

SE2020GS-O

6,6

60

12,1

1,9

SE2023GS-O

9

117

18

1,09
1,09

SE2028GS-O

9,6

117

20,1

SE2031GS-O

10,3

121

22,7

1,09

SE2039GS-O

11,1

121

25,6

1,06

Locked Rotor Amperage (LRA) is the total current input ones compressor motor is locked at its maximum
rated voltage.
Rated Load Amperage (RLA) is the value established from MCC (Maximum continuous current) andmeans that if that value is up to certain limit, the protector must trip.
The scroll compressor needs a Run-in period minimum 72 hours to give its full performances, usually
under low load or normal load, to settle mechanical parts into a stable position. During this run-in the
power input can be slightly higher than normal conditions.

10.15 HIGH POTENTIAL (HI-POT) TESTING
Scroll compressors are configured with the motor below the compressor. As a result when liquid
refrigerant is within the compressor shell the motor can be immersed in liquid refrigerant to a greater
extent than with compressors with the motor mounted above the compressor. When compressors are
Hi-pot tested and liquid refrigerant is in the shell, they can show higher levels of leakage current thancompressors with the motor on top because of the higher electrical conductivity of liquid refrigerant
than refrigerant vapor and oil. This phenomenon can occur with any compressor when the motor isimmersed in refrigerant. The level of current leakage does not present any safety issue. To lower thecurrent leakage reading the system should be operated for a brief period of time to redistribute therefrigerant to a more normal configuration and the system Hi-pot tested again. Under no circumstances
should the Hi-pot or Meg-ohm test be performed while the compressor is under a vacuum.

47

10.16 ELECTRICAL CONNECTIONSWARNINGWARNING

Avoid excessive shocks on the pins of the compressor. The force to insert theterminals of the electrical components or supply line must be along the axis ofpins: transversal forces not aligned with the pins or moments exerted on the pins
can bend them or cause cracks in the glass insulation. These cracks can lead toglass breaks, refrigerant/oil leakages and short circuits.

Avoid using the electrical components to get multiple connections on theirterminals: the excessive force necessary to fix all them together may damage
the components. If multiple connections are needed. use the terminal board (partof CSR box) provided by Embraco for its compressors or other external terminal
boards (complying with the electrical safety standards) to be fix on the installation.
For other solutions, contact Embraco Technical Support team.

10.18 ELECTRICAL INSULATION
All compressors are tested for dielectric strength and electrical insulation to ground according to requirements
IEC/EN 60335-2-34 (to be used with IEC/EN 60335-1) (latest edition).
Note: dielectric strength and compressor insulation to ground are different when the compressor is tested
in the air or in a system charged with refrigerant, due to the dielectric characteristics of the refrigerant.

11. STARTING PROCEDURE
11.1 SYSTEM CLEANLINESSWARNING

Position of electrical box in the application – it is mandatory to be in verticaldirection, to assure correct functionality of relay (see Figure 10.16).

Cleanness and reduced humidity level in all the components of the refrigeration system are the primaryconcerns for the compressor good running and life. Many of contaminants are small to pass through a meshscreen and can cause damage within a bearing assembly.
During the manufacturing process, circuit contamination can be caused by:

Figure Electrical box position•

brazing oxides and flux•

particles from burrs of piping•

moisture and air

Recommended impurity level of the circuit after vacuum dehydration:
RATED POWER≤2.2 Kw

2.2~4.5 Kw

4.5~6.0 Kw> 6.0 Kw

IMPURITY

500 mg

500 mg

600 mg1100 mg11.2 MOISTURE REMOVAL

10.17 SCREWS TIGHTENING TORQUE
The connection screws on CSR box, terminal board and plastic hermetic terminal are supplied with a clamping
torque of 1÷2Nm (10 ÷ 20 kgcm). The same torque is proposed to be used for their tightening when used.
Grounding screw M5x12 is assembled on compressor hermetic terminal with a tightening torque1÷2Nm (10÷20 kgcm).

48

One of the disadvantages of polyolester oil (POE) is that it is hygroscopic. Only brief exposure to ambient air cancause moisture absorbation, to make it unacceptable for use in a refrigeration system. As it holds moisture, it
is more difficult to remove it through the use of vacuum. Compressors supplied contain oil with low moisture
content, and it may rise during the assembly process. Therefore it is recommended to use properly sized filterdrier in whole system, which uses POE oil. This will maintain the moisture level in the oil less than 50 ppm.

If moisture content of the oil in refrigeration system reaches unacceptably high levels, corrosion and copper
plating may occur. The system should be evacuated down to 0.3 mbar or lower. If there is uncertainty of the
moisture content in the system, an oil sample should be tested for moisture.
Oil sight glass can help to indicate of moisture of refrigerant.

49

11.3 SYSTEM EVACUATION

11.6 CHARGING PROCESSAn important step in effectively cleaning a system before operation is proper evacuation. Air is very detrimental
to refrigeration systems and must be removed before start up and after field service. Blowing out lines withdry nitrogen may remove a major part of the air from a system, but if air is trapped in the compressor during
installation it is practically impossible to remove from the compressor by purging with nitrogen.

Do not power on the compressor before charging refrigerant. Use the scale to control charge quantity. One liquid
drier is recommended to connect between refrigerant cylinder and manifold to prevent moisture into system
during charging. Connect refrigerant cylinder to both high and low side of the refrigeration system, power on thesolenoid valve if possible (do not power on the compressor at this time). Invert refrigerant cylinder if needed toensure only liquid can be charged into both high and low sides. Charge the refrigerant to the system as muchas needed (at least 70% of total needed). Disconnected the high side charge port, turn on the compressor, andcontinue charge the liquid from the low side until the refrigerant is enough for the system.

Triple evacuation of the system or compressor, as required, is strongly recommended (twice to 1500 microns andfinally to 500 microns), breaking the vacuum each time with 2.07bar (rel) (30 PSIG) dry nitrogen. The vacuum
pump must be connected to both - the high and low sides of the system through properly sized coactions,since restrictive service connections may make the process so slow as to be unacceptable, or may lead to false
readings because of pressure drop through the fittings.

Never close the suction service valve when compressor is running.
WARNING11.4 DEEP VACUUM OPERATION
11.7 OIL CHARGEWARNINGWARNING

IMPORTANTDo not run a refrigeration scroll compressor in a vacuum.
Do not carry out any evaluation or test of insulation (dielectric strength or hi-pottest) with compressor under vacuum. It may result in damages of the insulation
system and, consequently, in shortening the insulation life.

Do not run a compressor before the refrigerant charge. Failure to follow theseadvices can result in permanent damage to the compressor. A low-pressure control
is required for protection against vacuum operation. See the section on pressure
controls for the proper set points.

Scroll compressors should never be used to evacuate refrigeration or air
conditioning systems.

The quantity and type of oil charged into the compressors are indicated in the compressor label and Technicaldatasheet in the Embraco Product Selector on www.embraco.com
Oil used with scroll compressors is Polyolester (POE) Emkarate RL32H and is applicable for all approved
refrigerants used with compressor. The initial oil charge and recharge volumes are indicated in Table 11.7.
Compressors are supplied with oil.

Table 11.7 Oil charge and recharge volume
COMPRESSOR SIZEINITIAL OIL CHARGE VOLUME (L)RECHARGE VOLUME (L)

2-6 HP

1.4

1.25

7-13 HP

2.7

2.6

Systems with POE oil should not be open to the air for more than 3 minutes. Don´tremove the suction and discharge rubber plugs until the compressor is ready to braze.

11.5 DEHYDRATIONWARNING

The scroll compressors have a drying process on their production line, before receiving the oil charge.
The residual humidity after drying is indicated in below table.

During the compressor running, oil is pumped out from the compressor. The system must be designed in order tocarry the oil back to the compressor; however a certain amount of oil may remain inside the system.

Table 11.5 Dehydration process
WARNING50

RATED POWER≤2.2 KW

2.2~4.5 KW

4.5~6.0 KW> 6.0 kWMOISTURE

80 mg

100 mg

120 mg

140 mgPOE oil absorbs moisture from atmosphere. To remove it follow instruction in Chapter
11.2 – Moisture removal.

The minimum quantity of oil inside the compressor that guarantees the correct
lubrication is no less than half of initial oil charge volume.
Oil quantities below the minimum prescribed level will not allow the oil pumping andwill cause wear, leading to the eventual seizure of the mechanical parts.

System prototypes have to be checked for the oil remaining into the line tubes, condenser, evaporator and otherparts after running in all the expected conditions that may happen in the field, assuring that the compressor
contains in all conditions at least the quantity of oil indicated in above Table 11.7.

51

11.7.1 OIL MANAGEMENT FOR RACK APPLICATION
Scroll refrigeration compressors may be used on multiple compressor parallel rack applications. This requires theuse of an oil management system to maintain proper oil level in each compressor. The sight glass connection
supplied can accommodate the mounting of the oil control devices.

11.8 SCROLL FUNCTIONAL CHECK

Table 11.9 Compressor sound level
Sound Power(dBA)

COMPRESSOR MODEL

Sound Power
with Noise jacket(dBA)

Maximum
Running
Sound
(dBA)

MBP

LBP

50Hz

60Hz

50Hz

SE6015-SE6021

SE2006-SE2010

71

73

68

60Hz
70

75

SE6026-SE6036

SE2012-SE2017

73

75

70

72

77
78

SE6043

SE2020

74

76

71

73

SE6053-SE6056

SE2023

75

77

69

71

76

SE6067-SE6078

SE2028-2031

76

78

70

72

77

SE6085-SE6089

SE2039

77

79

71

73

78

Note: Tested in Rated condition of EN12900

Refrigeration scroll compressors do not have internal suction valves. It is not necessary to performfunctional compressor tests to check how low the compressor will pull suction pressure. This type of test
may damage a scroll compressor. The following diagnostic procedure should be used to evaluate whether ascroll compressor is functioning properly.

11.10 SOUND GENERATION IN REFRIGERATION SYSTEM• Verify proper unit voltage.

Noise and vibrations coming from system or service may come from these sources:• Normal motor winding continuity and short to ground checks will determine if the inherent overload
motor protector has opened or if an internal short to ground has developed. If the protector has opened,
the compressor must cool sufficiently to reset.
• With service gauges connected to suction and discharge pressure fittings, turn on the compressor. If
suction pressure falls below normal levels, the system is either low on charge or there is a flow blockage.

•sound radiation – extend by air•

mechanical vibrations – extended along the parts of the unit andstructure•gas pulsation – distributed by cooling medium (refrigerant)• Single-Phase Compressors - If the suction pressure does not drop and the discharge pressure does notraise to normal levels the compressor is faulty.

12. MAINTENANCE (COMPRESSOR REMOVAL AND REPLACEMENT)• Three-Phase Compressors - If the suction pressure does not drop and the discharge pressure does not
rise, reverse any two of the compressor power leads and reapply power to make sure the compressor was
not wired to run in the reverse direction.

The replacement of a compressor is an onerous task and requires an accurate diagnosis of the systembefore deciding to proceed with it.

The compressor current draw must be compared to publish compressor performance curves at thecompressor operating conditions (pressures and voltages). Significant deviations (±20%) from publishedvalues may indicate a faulty compressor.
WARNING11.9 STARTING SOUND LEVEL
During compressor start the sound level of compressor is slightly higher than during normal running
operation.

WARNING3-phase motor reverse wires connection is characterized by initial noise. To correct reverse rotation.
disconnect power and switch any two of the three power wires at the unit contractor. Never switch wires atthe compressor terminals
WARNING

52

Improper procedures to remove the failed compressor and install a new one, maycause injury to person, release of refrigerants and oil to the environment, fire anddamages to propriety.

When repairing a refrigeration system, replacing a compressor and installing a newones, follow all applicable international regulation and standards (like EN 378-4 orsimilar), and the local ones, as well as the safety warnings and recommendations
indicated in these installation instructions.

The compressor replacement must be carried out in properly ventilated ambient.
Disconnect the system from the electrical power.

53

Ground the installation:

CAUTION•

Check the conditions of the electrical wirings and connections, with special careto the ground wire; replace eventual damaged parts.

•

Check the system for leakages with leak detector suitable for the refrigerant
used on the system and having a sensitive of at less than 3 g/year.

•

Remove the protective shield to access the compressor.

•

Remove the compressor terminal covers and disconnect all the compressor
electrical components.

12.1 COMPRESSOR REPLACEMENT PROCEDURE
Do not perform unnecessary tests before install or start a new compressor. All tests have been alreadycarried out in the production lines and labs

Recover the entire refrigerant charge before removing the compressor (if the line
tubes are cut when the system contains even fractions of the refrigerant charge.
it will cause a rapid release of refrigerant mixed with oil, with pollution to theenvironment and possible injury due to inhalation of gas or frostbite).

•

Change the dryer, as the refrigeration system has been opened.

•

For the assembling of a new compressor and brazing, follow the procedure ofChapter 9.12.

•

Brazing requires specific trained personnel and brazing procedure approvals.

•

Assemble the electrical components according to the wiring diagram of Figure
10.3a.

•

When replacing a compressor do not use the electrical components installed on thereplaced compressor. Use new components supplied with the new compressor andcheck the correspondences with the ones prescribed for the specific compressor
model as listed in the Embraco Product selector on www.embraco.com
Connect the components with the care indicated in Chapter 10.3 – Electricalconnections and wiring diagrams.

•

After assembly, the system shall be tested for leakages by pressurizing.
Pressure must be according to the applicable regulation and to the designpressure of the system components in order to avoid injuries and damages.

•

When testing the low pressure side of the system, pressure to the compressor
shell must not exceed 16 bar (see Chapter 11.3 – System evacuation).

To recover the refrigerant use a suitable recovery units and apparatus, follow the instruction of the producers
and the applicable regulations.

CAUTION

The only acceptable practices on refrigerant removed from systems are recovery,
reuse, recycling and reclamation. All the applicable standards and regulations forthese operations must be followed.

Avoid venting refrigerants in the ambient. In several countries there are legal obligations on technicians toprevent this incorrect operation and to act minimizing leaks and repair systems with leaks as soon as possible.

To remove the refrigerant:•

54

Refrigerant has to be recovered from both high and low pressure sides. Connect
the hose (with Schrader connection) to the recovery unit in order to start therefrigerant recovery procedure.

•

Use a filter dryer at the entry of the recovery unit.

•

Adhere the instructions of the recovery machine producer. Go down with recovery
up to a residual pressure of 0.3 abs bar (make reference to EC 842 or equivalentapplicable regulations).

•

Be careful not to exceed the maximum charge indicated on the recovery vessel
for the specific refrigerant. Overcharges can lead to vessel explosion.

•

Unsolder the line tube from the compressor.

•

Remove the compressor from the installation base plate, follow the instructionof Chapter 12•

In case the compressor has to be returned to Embraco, follow the instruction ofChapter 13•

Purge the system using OFDN (oxygen-free-dry-nitrogen) only.

It is allowed to charge the system only with the refrigerant which must correspond with the refrigerant
officially approved, indicated in Table 6.2
When the charge procedure is finished, fix strongly the cap on the Schrader valve (or pierce strongly theservice tube, cut the Schrader valve and close the tube by brazing (eventually use a lockring cap).
Fix properly the compressor terminal cover and ensure the compressor and the system is grounded before
supply voltage.
After repairing, the system should be checked for leakages, use leak detector specific for the adopted
refrigerant, with a sensitivity of less than 3 g/year and run for analyzing the performance and Watt/Amps input.
For compressor, refer to the Technical datasheet in the Embraco Product selector on www.embraco.com
For entire application refer to data that the cabinet manufactures should provide.

12.2 UNBRAZING SYSTEM COMPONENTS
If the refrigerant charge is removed from a scroll unit by bleeding the high side only it is sometimes possible
for the scrolls to seal, preventing pressure equalization through the compressor. This may leave the low side
shell and suction line tubing pressurized. If a brazing torch is then applied to the low side, the pressurizedrefrigerant and oil mixture could ignite as it escapes and contacts the brazing flame. It is important to check
both the high and low sides with manifold gauges before un-brazing.

WARNINGIn the case of an assembly line repair remove the refrigerant from both the highand low sides. Instructions should be provided in appropriate product literatures
and assembly areas.

55

13. HOW TO RETURN SUPPLIED PRODUCTS TOEMBRACO EUROPE
For the warranty on products supplied by Embraco, refer to what is indicated in the sales conditions.
The validity of the warranty (if applicable) is subject to the results of the analysis carried out in Embraco on
the returned compressors. A technical report of the analysis will be send to the customer.
Customer may participate in the analysis.
The return (and delivery terms) of compressors to Embraco for technical analysis has to be agreed between
Embraco Sales Department and the Customer. The delivery conditions and documents shall be according to
the Embraco Sales Department instructions.
To ensure a timely analysis and the correct definition of the root causes of the problem, Embraco request
to observe the following rules:•

Disassembly the compressor from the system, following the instruction of Chapter 12.

•

Disconnect the supply wirings from the compressor terminals without remove the electrical components.

•

Cut the line tubes at least 50 mm away from the compressor ports (do not unsolder) and close them withthe specific rubber taps or by brazing.

•

Do not carry out potential destructive tests (i.e. Dielectric strength test) and do not remove the oil fromthe compressor.

•

Do not abrade or eliminate the nameplate.

•

Indicate on the compressor top with a marker (or on an adhesive label) the reasons of the replacement;
it is sufficient macro-indication like:- noisy- leakages on tube/shell (evidencing the leak point)- does not start (specify in which conditions)- does not cool the system- OPL trips- grounded- short circuit

14. COMPRESSOR DISPOSAL
Disposal of refrigerating systems, its parts and components shall be undertaken in accordance with thesystem producer’s instructions and with national regulations.
For recovery, reuse, recycling and reclamation of the refrigerant follow EN 378-4 or similar standards, aswell as the applicable local regulations.

WARNING

Use the correct equipment and method for removal the compressor.

Drain out the oil from the compressor and treat it according to the applicable regulations.
Dispose the compressor according to applicable regulations.
The compressors shall be stored in ambient properly ventilated.
When necessary, an expert in dealing with safe disposal of refrigerants and oils should be consulted.

15. COMPRESSOR PACKAGING
15.1 MULTIPLE (INDUSTRIAL) PACKAGING
This type of package consists of a shipping pallet with dimensions of 1100 mm x 1100 mm on which is
positioned the carton box with compressors inside and an internal separators to prevent any compressor
movements. On the top carton box is placed wooden top board and secured with straps (see Figure 15.1).
Compressors are in one layer.
Electrical components and accessories are included in the package:- one plastic bag with grommets and sleeves- CSR box – depending on ordered Bill of material code, is placed close to compressor.
Number of compressors per pallet: 16 pcs for models 2-6HP or 12 pcs for models 7-13HP.

- motor winding interrupted•

Handle with care, to avoid damages of the compressor and its electrical components.

•

All materials must be properly packaged according to the type of shipment and in order to avoid damages
during transport. Consult the shipping agency before delivery.

•

Do not return defective compressors as a consequence of mishandling.

•

Do not return open compressors or tampered components; (to avoid erroneous diagnosis, the compressor
must be opened with suitable tools, available at Embraco factories).

The material that does not correspond to the above requirements may be considered not valid for analysis
and may void the warranty.
All the materials that, after analysis, appear to be working and are free of quality problems, can neither be
returned nor replaced (the complete analysis involves the opening of the compressor and its disassembling).
The analyzed product, before its disposal, remains available for the customer for a maximum period of
30 days starting from the date of the Technical Report issued by the Sales and delivered to the customer.

56

15.2 SINGLE PACKAGING
Complete pallet package consists of a shipping pallet of 1100 mm x 1100 mm on which in multiple
carton box are placed single carton boxes with compressors, internal separator to prevent any compressor
movement. secured with straps (see Figure 15.2).
Electrical components and accessories are included in the single package:- one plastic bag with grommets and sleeves- CSR box – depending on ordered Bill of material code
Number of compressors per pallet: 9 pcs.
Wooden pallet and carton boxes are created to comply with recycling regulations and are treated according
to ISPM No.15. The wooden top board placed on top of each carton box is made of plywood.

57

16. HANDLING. TRANSPORTATION AND STORAGE

Figure 15.2.1 Multi packaging

16.1 HANDLING
Figure 15.2.2 Single packaging

WARNING

Due to compressor weight it is recommended to handle with compressors using
cranes and hooks.
Use of improper handling can result in person injuries.

Compressors are equipped with a hanger tab to be used for compressor manipulation.

WARNING

Avoid using of hanger tab to manipulate with complete unit, once compressor isassembled in.

Compressor must be handled in vertical position, with a maximum inclination of 15° from vertical.
Maximum running inclination of 5° from vertical is allowed.

IMPORTANTThe handling of scroll packages must be done only by forklift with due care, toavoid damages of the package and compressors. Access is available from all foursides of the package. It is recommended the use of forks having a length adequate
to the size of manipulated goods.

16.2 STORAGE
Failure to follow these instructions can result in property damages and people
injuries Compressors are equipped with a hanger tab to be used for compressor
manipulation.
On compressor carton boxes are sticked labels with Bill of material
code and Serial Number, including its bare code (Type 39).

Figure 15.2.3 Packaging Barcode

WARNINGWARNING

The storage of pallets can be done by placing maximum of 1 pallet upon another;maximum stocking allowed - 2 pallets.
Risk of pallets collapse and personal injuries, stacking higher than the recommended
maximum can cause accidents.
Move pallets, packages and compressors only with appropriate mechanical or
handling equipment according to the weight.
Keep the packages in the upright position. Keep the packaging dry at all times.

WARNING

Do not stack single boxes on top of each other or on top of multi packaging.

All packages must be stored in places protected from humidity and bad weather.
Embraco does not take any responsibility for occasional damages to the package and to the finished productresulting from not observing these instructions. For the solution of potential positioning problems duringassembling and transport, consult the Embraco Technical support team.

58

59

16.3 STORAGE CONDITIONSIMPORTANT

Compressors and electrical components should be stored in closed ambient,protected against rain, water drops, dust and contaminants; air humidity should
not exceed 80 %. Salty sea ambient (transport by vessel, load, unload) are admitted
only for the periods of transportation and custom clearance; storage on the sea
board should be avoided.

There is no any limitation for storage, however we suggest to store compressors in house with ambient
temperature: min -10°C / max 40°C. For limited periods (like transportation in containers in tropical areas)
temperature up to 70°C is admitted.
In case of storage in low temperature, it is not necessary to stabilize compressors before its installation to
the system.

16.4.2 SHIPMENT BY TRUCK
The transportation of compressors by truck is the most common system for highway or short distanceswhere the stresses on the product are reduced. This type of transportation, if made without the necessary
precautions on load steadiness and travel on uneven roads can cause stresses to compressors withpossible damages.

16.4.3 ACCEPTABLE COMPRESSOR POSITIONS DURING
TRANSPORTATION OF FINISHED PRODUCT
Compressors allowed transportation position - in upright position.

In case of system storing in low temperature, prior to its run, follow recommendations in Chapter 8.5 - Low
ambient operation.
Even if properly stored, after prolonged storage period (over 5 years) the oil on the cinematic parts of thecompressor may dry, making the first start of the compressor difficult and the tube plugs may deteriorate
allowing air/humidity enter into the compressors.
In case of longer storage time, before using the compressors contact the Embraco Technical support team.

CAUTION

16.4.4 ACCELERATION DURING TRANSPORT AND HANDLING

16.4 TRANSPORTATIONS
The transportation of all types of packaging must be done with the compressor in upright position.

IMPORTANTIMPORTANT

Maximum number of layers allowed during transportation is 2 layers (iconindication available on packaging), with maximum weight 2000 kg

Incorrect transport can cause compressor or its parts deformation. Before to use
compressors which are suspected of improper transport or damaged, contact
Embraco Technical Support Team.

In case the compressors are lying during the transportation or assembly of
the finished products, oil will enter in the suction tube, causing problematic
brazing of the line tubes and hazardous fumes.

Maximum allowable rate of deceleration/acceleration: 1g
IMPORTANT

Generally we advise against the rail transportation because during the shunting, stress to the compressors
from decelerations or acceleration can cause stator deformation or breaking of compressors components.
Rail transportation is allowed only for a full container shipment. LCL (Less Than Container Load) is notallowed.
For conditional approval of specific cases please contact Embraco Logistics or Technical support team.

16.4.1 SHIPMENT BY CONTAINER
The predominant method of transport is by container of which there are two different types for capacity andlength: 20 ft (about 6.1 m) and 40 ft (about 12.2 m). The standard container used by Embraco is the 20 ft,
which allows in comparison to the 40 ft, a higher ratio weight/volume and consequently a better utilizationof the internal volume (the number of the compressors in a 40 ft container is limited by the admitted total
weight).
Payload max 24 tons. Follow local limits.
IMPORTANT

60

61

APPENDIX 1
SAFETY RECOMMENDATIONS FOR COMPRESSORINSTALLATION
Flammable – risk of fire.

High voltage – risk of electric shock.

Failure to disconnect the compressor from the mains may, in the event of a short circuitin the region of the hermetic terminal of the compressor, cause expulsion of the hermetic
pins causing leakage of the cooling fluid.

1 • ELECTRICAL ACCESSORIES
Before removing the protective plastic cover from the electrical components, check if the compressor is
disconnected from the mains and that starting and / or running capacitors are used.
Never handle any electrical accessory with the compressor connected to the mains.
Failure to shut down the mains compressor during maintenance procedures and to apply
a system without a ground fault circuit interrupter (GFCI) or residual current device (RCD),
according to the country technical requirements, may cause serious physical hazards byelectric shock and/or fire to the technician.

Toxic – risk of intoxication.

Starting and / or running capacitors must be handled with care, as they may cause
electric shock even when disconnected.

GENERAL RECOMMENDATIONS
Only trained personnel can perform diagnostic and maintenance procedures onrefrigeration systems.
Installation and repair requires special training, technical information, special tools andspecial equipment.
Make sure in advance if the environment for maintenance is adequate and airy.
Tools and process equipment should be available. The required Personal Protective
Equipment (PPE) must be used by the technician.

When it is necessary to remove the capacitors, carefully disconnect these components with extra attention to the
exposed electrical terminals. The capacitor must be discharged before handling.
Check that the capacitance range (μF) printed on the starting and running capacitor label (if applicable) comply
with the compressor data sheet that is installed in the system.
The ACV Voltage value printed on the capacitor label must be equal to or greater than the value specified in thecompressor data sheet. If one of the values (ACV Voltage and / or Capacitance) is not in accordance with thecompressor specification, replace the capacitor.

Application of an unsuitable capacitor and / or application of unspecified relay starting
devices may cause the capacitor to overheat. Overheated capacitors are subject torupture which can lead to leakage of overheated material that can lead to burns.

Before starting maintenance or diagnostics, first make sure that the cooling system is
disconnected from the mains.
After disconnecting the system from the mains, wait for the compressor to cool
down. Only perform maintenance or diagnostic procedures with the cold compressor(25 ° C ± 5 ° C).
The compressors shall be powered only in electrical installations with a ground fault
circuit interrupter (GFCI) circuit breakers or residual current device (RCD), according to
the country technical requirement.
Correct grounding is required for the use of compressors.
Failure to shut down the mains compressor during maintenance procedures and to apply
a system without a ground fault circuit interrupter (GFCI) or residual current device (RCD),
according to the country technical requirements, may cause serious physical hazards byelectric shock and/or fire to the technician.

62

When necessary to disconnect the electrical components of the hermetic compressor terminal, remove the relay
starting device by applying longitudinal effort to the pins. Never apply transverse forces to the pins of the hermetic
compressor terminal

WARNING

Improper removal of these accessories may cause poor electrical connection, damaging
the hermetic compressor terminal, and causing refrigerant and oil leakage.

Compare the printed code on the relay with the compressor data sheet. If the code is different, replace thecomponent. There are no universal or similar electrical accessories always use the one specified in the compressor's
data sheet.

63Not specified relay starting device may cause the capacitor to overheat. Overheatedcapacitors are subject to rupture which can lead to leakage of overheated material thatcan lead to burns.

WARNINGThe use of relay starting device other than specified can generate short circuit in thehermetic compressor terminal, causing the expulsion of hermetic pins causing refrigerant
and oil leakage.

1.1 • ELECTRICAL INSTALLATION
In order to assure appropriate motor-compressor operation, it must be installed in electrical installation system(grid) with sufficient current capacity with respect to motor-compressor rated load amperage and locked rotor
current. Otherwise, possible problems may occur due to current breaker or fuse intervention or due to starting
ability issues caused by voltage drop over the line.
Appliance installation must be established by trained personnel only.
Before operation, motor-compressor must be grounded (appropriate earth connection must be established).

In the case of two-phase installations, it is mandatory to use a 2-pole circuit breaker, because in case of a shortcircuit both phases of power supply are protected. The system must be grounded.
.

Always follow connection diagram scheme in order to assure motor-compressor safety and correct operation.
Only approved electrical accessories have to be used, corresponding to specific model of motor-compressor.
Motor-compressor may not be connected to other voltage and frequency than assigned on the motorcompressor label.

WARNING

Failure to use a 2-pole circuit breaker leaves the compressor susceptible to short circuitin the region of the hermetic compressor terminal, which may cause the hermetic pins tobe ejected causing the refrigerant and oil to leak.

In case of fuse or circuit breaker reaction. never replace or reset before checking ground fault (short circuit toground). Blown fuse or tripped circuit breaker could be indicator of ground fault situation.
Never operate motor-compressor without grounding.
Application of a system without grounding may expose the technician to risk of electric
shock.

In single-phase installations with internal overload protector, the Phase wire must be protected by a circuit
breaker and connected directly to common pin. The neutral wire must be connected to the relay starting device.
The system must be grounded.

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If you need to replace the compressor, be aware of the following safety recommendations:I.

Make sure the compressor is disconnected from the mains.
Failure to shut down the compressor from the mains during maintenance procedures
may expose the technician to risk of electric shock and fire.

II.

Never remove the compressor before removing all refrigerant from the system. For this, the use of a
fluid collecting machine is recommended.

III.

Use a pipe cutter to disconnect the compressor tubes. Under no circumstances use the flame of thetorch to disconnect the compressor tubes.

IV.

In case of compressor burning and / or internal contamination of the system, clean the piping witha suitable solvent applied according to the solvent manufacturer's technical guidelines.
Failure to comply with the solvent manufacturer's technical guidelines may expose thetechnician to fire hazards and intoxication.

V.

Before connecting a compressor, make sure that:-

The voltage at the compressor label is suitable for the mains and the electricalinstallation complies with item 1.1
The application of a compressor in incorrect voltage may cause short circuit in
the hermetic compressor terminal, causing the expulsion of hermetic pins causing
refrigerant and oil leakage.

WARNING

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CROSS-REFERENCE
PRODUCT CATALOGUE
DISTRIBUTOR LOCATORUNT CONVERTERREFRIGERANT SLIDERREFRIGERATION CLUBTROUBLESHOOTINGThe plastic cover for electrical protection is properly seated.

The non-use or improper positioning of the plastic cover may expose the electrical
technician the risk of electric shock and fire.

VI.

NEW PRODUCT SELECTORPRODUCTSE

2 • COMPRESSORFIND EXTERNAL VIEWS, WIRING DIAGRAMS,AND MUCH MORE IN OUR:

AND BECAME PART OF OURREFRIGERATION CLUB!

Always use electrical accessories (components) supplied with new spare compressor.
Do not use electrical components from replaced compressor.

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PRODUC
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Subject to alteration without previous notice - Code SI01EN - Date: June 2019 - Version 01

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