8220-603 series

8220-603 series

Reliability through Simplicity

Back-up DC Generator Set

Founded in 1979 Polar Power specialized in solar photovoltaic systems,solar air conditioning and refrigeration. We developed and provided
photovoltaic charging controls for telecommunications in the 1980s
along with DC generators for the military. In 1994 we were first to provide DC generators with remote control and monitoring to the telecommunications industry.
Polar’s success is based on engineering generators to meet the very specific needs of each application. Telecom site optimization is best metwith the DC generator technology as the loads and batteries are DC. It
makes no sense to install an AC generator and convert the output to DC.
The AC generators are designed for a wide range of applications andthey are not specifically produced for telecom applications so there areissues with reliability, space, and fuel efficiency.
Polar can save you considerable time and cost in permitting, installing,purchasing, and maintaining a backup generator. We reduce CAPEX andOPEX costs while improving backup reliability.

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Available Models:• 8220-603-NG-12 Natural Gas 12 kW -48 VDC• 8340-603-NG-15 Natural Gas 15 kW -48 VDC• 8220-603-LP-12 LPG 12 kW -48 VDC• 8340-603-LP-15 LPG 15 kW -48 VDCIntertek 4003706
Conforms to UL STD 2200
Certified to CSA STD C22.2 No. 100
Meets EPA Emission Regulations
CA/MA Emissions Compliant

2 year standard warranty, extended 5-10 year warranty available

Made in USA

The concepts and features behind Polar’s backup generator for telecommunications include:
SMALL FOOTPRINT. Polar’s DC generator is considerably smaller
in size than an AC generator. You can now backup sites that could
not accommodate an AC generator. Smaller also means less costfor space leasing.
LOW ACOUSTIC NOISE. <59 dBA @ 7 meters, and low vibration so
as not to disturb the local residents or building landlords. Quieter
than other generators with lower noise ratings.
LIGHTWEIGHT. Up to 1/3 the weight of a comparable AC generator. Facilitates roof top installations.
RODENT RESISTANT. Small animals can quickly destroy a generator set by gnawing on wires, fuel lines, radiator hoses, etc. Cooling air inlets and outlets have perforated aluminum screens tokeep small rodents and large insects out. Stainless steel wire braid
is placed over fuel and radiator lines for increased reliability andsafety.

CORROSION RESISTANT. All-aluminum enclosure with stainlesshardware for low maintenance, and long service life.
SUPERCAPACITOR STARTER. Failure to start is the number one
problem plaguing generator reliability. Polar’s unique design has
replaced the starting battery with a Super Capacitor. Capacitors
are more reliable and last longer than batteries (10-15 year life).
LONG LIFE. Controls and wire harnesses are designed to exceed
a 20 year life. Higher grade, longer life electrical wire (UL 3173),
weather tight connectors, gold plated connector pins on signal circuits. Controls and wire harness are easily replaceable.
ADVANCED MONITORING. Remote diagnostics, control, and monitoring. Ethernet and RS232 standard, with optional SNMP.
SIMPLICITY. Transfer switch, rectifier, and starting battery are notrequired.

249 E. Gardena Blvd, Gardena CA, 90248 | 310.830.9153 | www.polarpower.com | info@polarpowerinc.com

8220-603 series

application and engineering data

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COMPARING THE COST OF AC vs DC

PERMITTING IS FACILITATED
ACDC• Small engine horsepower

Transfer switch requiredYesNo• DC generator is fully isolated from the utility grid

Permitting costs$$$• No transfer switch

Shipping to site and installation cost$$$

• Low acoustic noise

Site preparation/reinforcing structures$$$$• Incorporates all requirements made by local Fire Marshals

Ethernet/RS232 remote control andmonitoring

ExtraStandard

8220 ALTERNATOR FEATURES• No mechanical adjustments• Very lightweight• Class 220° C insulation• High quality electrical output• Anodized type III process for aluminum parts• Voltage and current regulation• Nickel plating for steel parts• Up to 94% efficiency• Stator is varnished8220 ALTERNATOR SPECIFICATIONSSTARTER SUPERCAPACITOR SPECIFICATIONSTypePermanent Magnets, NdFeB

Model

Weight (lb/kg)

46.5/21

Storage Rating (Farads)

Regulation Type

Variable engine speed

Voltage (VDC)

Stator3 phase/32 poles

Weight (lb/kg)

12 kW - 250
Overcurrent Protection (A)15 kW - 350
Disconnect Means

Pull fuse block, sized for eachgenerator kW

Voltage Range (VDC)

44 to 62

Alternator Exhaust
Flow (cfm/cmm)

130 to 180 / 3.68 to 5.1

MTBF (hr)100,000+

ENCLOSURE
Model88-25-0603

Type

Weather Protective

Materials

Marine Grade Aluminum

Door Hardware

Three Point with Padlock Hasp,and Removable Side Panels

Mounting

Secure Mounting Tabs

20-16-0001

Operating Temperature (°C/°F)

50013-14.4
12.1/5.5-40 to 65 / -40 to 149

Service Life (year)

10 to 15

CHARGER SPECIFICATIONS
Model00-10-0015

Input Voltage (VDC)

28.8 to 60

Output Voltage (VDC)

14 to 14.4

Recharge time from 0 VDC (min)10Recharge time from 8 VDC (min)2Weight (lb/kg)

2.2/1

SOUND EMISSIONS
Contact us for current sound data.

WEIGHTS AND DIMENSIONSDry Weight (lb/kg)
Dimensions (LxWxH) (in/cm)

Natural Gas

LPG

765/347

770/35032 x 50 x 72 / 81.3 x 127 x 183

249 E. Gardena Blvd, Gardena CA, 90248 | 310.830.9153 | www.polarpower.com | info@polarpowerinc.com

8220-603 series

application and engineering data 3 of 6
ENGINE SPECIFICATIONS: 12 - 15 KW NATURAL GAS and LPG

ENGINE LUBRICATION SYSTEMEngine Model

Natural Gas - Kubota DG972
LPG- Kubota WG972

Oil Filter Type

Full flow spin-on canisterCylinders

3 In-line

Oil Capacity

3.7 L - DG972/WG972

Displacement (L)

0.962

Oil Pressure Switch

Bore (in./mm)

2.93/74.5

Stroke (in./mm)

2.9/73.6

ENGINE COOLING SYSTEM

Intake Air System

Naturally Aspirated

TypeEngine HP

18

Water Pump

Emissions Compliance

EPA and CARB Certified

Fan Type

Electric Fans

Variable RPM

2300 to 3150

Airflow CFM or M3/hr

1300 or 2200

Yes

Oil Pressure Transducer

Optional

Pressurized Aluminum Radiator
Belt-driven, Pre-lubed, self-sealing

Fan Mode

ENVIRONMENTALPusher

Temperature Switch

Yes

Operating Temperature (°C/°F)-40 to 72 or -40 to 162

Operating Humidity %100

FUEL SYSTEM

Cold Start Aids

Glow Plugs

Type

Natural Gas or Propane

Fuel Tank/Line

Supplied By Customer

Max Fuel Flow Rate (BTU/hr)

12 kW - 241,000
15 kW - 340,000

PROPANE ENGINE FUEL CONSUMPTION

Kubota 972

Output (kW)gal/hr

L/hr

4

0.97

3.67

5

1.1

4.16

6

1.26

4.77

7

1.475

5.58

8

1.69

6.4

91.945

7.36

10

2.2

8.33

122.52

9.54

15

3.55

13.44

First (stage)Regulator

88-25-0603

250 psi

250 gal. tank

Second (stage) Regulator
Supplied by Installer

Recommended
35 psiPressure Chart
Minimum

Recommended

Maximum

0.14 psi

0.39 psi

0.5 psi

4 in H2O

11 in H2O

13.9 in H2O

10 mbar27.4 mbar

34.5 mbar

POWER ADJUSTMENT FOR AMBIENT CONDITIONS
Temperature Deration
Altitude Deration

1% derate for every 5.6 0C (10 0F) above 25 0C (77 0F)
3% derate for every 300 m (1000 ft) above 91 m (300 ft)

249 E. Gardena Blvd, Gardena CA, 90248 | 310.830.9153 | www.polarpower.com | info@polarpowerinc.com

8220-603 series

operating data

4 of 6ENGINE COOLING

Natural Gas

LPG

System coolant capacity (gal/L)

2.2/8.3

Maximum operation air temperature on radiator (°C/°F)

54/129Maximum ambient temperature (°C/°F)

49/120COMBUSTION REQUIREMENTS
Natural Gas
Flow at rated power (cfm/cmm)

LPG
47/1.34

EXHAUST
Natural Gas

LPG

Exhaust flow at rated output (cfm/cmm)

90/2.55

Exhaust temperature at rated output (°C/°F)

480/900

CONTROLLER FEATURES
Controller Type..................................................................................................................................................................Supra Model 250
4-Line Plain Text LCD Display....................................................................................................Simple user interface for ease of operation
Engine Run Hours Indication..........................................................................................................................................................Standard
Programmable Start Delay..............................................................................................................................................................Standard
Run/Alarm/Maintenance Logs.......................................................................................................................................................Standard
Engine Start Sequence....................................................................................Cyclic cranking: 5 sec on, 45 sec rest (3 attempts maximum)
Starter Supercapacitor Charger......................................................................................................................................................Standard
Automatic Voltage Regulation with Over and Under Voltage Protection......................................................................................Standard
Automatic Low Oil Pressure/High Oil Temperature Shutdown......................................................................................................Standard
Overcrank/Overspeed....................................................................................................................................................................Standard
Automatic High Engine Temperature Shutdown............................................................................................................................Standard
Field Upgradeable Firmware..........................................................................................................................................................Standard
Glow Plug Delay ............................................................................................................................................Automatic With Temperature
Engine Start Delay..................................................................................................................................................Adjustable, Set at 60 sec
Return to Utility Delay............................................................................................................................................Adjustable, Set at 60 sec
Engine Cooldown...................................................................................................................................................Adjustable, Set at 60 sec
Exerciser.................................................................................................................................................Programmable, weekly/bi-weekly
WARNING ALARMS
Low Diesel Fuel Level.....................................................................................................................................................................Standard
Diesel Fuel Tank Rapture Basin......................................................................................................................................................Standard
Low/High Supercapacitor Voltage.................................................................................................................................................Standard
High Water Temperature...............................................................................................................................................................Standard
Low Oil Pressure............................................................................................................................................................................Standard
CONTACT CLOSURE FOR REMOTE INDICATION (PN 84-12-0640)
Shutdown Alarm.............................................................................................................................................................................Optional
Warning Alarm................................................................................................................................................................................Optional
Engine Run......................................................................................................................................................................................Optional
Low Diesel Fuel Level......................................................................................................................................................................Optional
Diesel Fuel Leak..............................................................................................................................................................................Optional
E-Stop Depressed............................................................................................................................................................................Optional
Fuel Level Over 90%........................................................................................................................................................................Optional

249 E. Gardena Blvd, Gardena CA, 90248 | 310.830.9153 | www.polarpower.com | info@polarpowerinc.com

ABCDREV

8DESCRIPTIONFIXED DOORREMOVABLE DOORINITIAL RELEASE

877ECO#-BY

29.62

31.00

66DATE

71.84
76.53

5PROPRIETARY AND CONFIDENTIALTHE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OFPOLAR POWER INC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUTTHE WRITTEN PERMISSION OF POLAR POWER INC. IS PROHIBITED.

COMMENTS:COLD AIR INLET,FIXED REAR DOORGUARDEDLOCKING
HANDLEGUARDEDEMERGENCY
STOP SWITCH

4USED ON
APPLICATIONNEXT ASSY

3GLEESON

3DO NOT SCALE DRAWINGFINISHQ.A.

MFG APPR.

221REV

1SHEET 1 OF 488-25-0603 A-1

DWG. NO.

ALUMINUM VERTICALENCLOSURE, 72 IN

249 E GARDENA AVE, GARDENA CA. 90248

POLAR POWER INC.

ENGINE EXHAUSTSCALE: 1:24 WEIGHT:B

SIZE

1/22/2015 TITLE:DATECAD GENERATED DRAWINGDO NOT MANUALLY UPDATEAPPROVALSDRAWNFRACTIONS DECIMALS ANGLES±1/2° CHECKED±1/32"
X.X±0.1"
X.XX±0.03"
X.XXX±0.010"
MATERIAL
ENG APPR.

DIMENSIONS ARE IN INCHESTOLERANCES ARE:UNLESS OTHERWISE SPECIFIED:COLD AIR INLET, FRONT DOORFRONT DOOR IS MAIN ACCESSFIXED DOOR

49.39

4

HOT AIR EXHAUST (FOUR SIDES)REMOVABLE DOORSERVICE ACCESS

5A

B

C

D8220-603 series

installation layout
5 of 6249 E. Gardena Blvd, Gardena CA, 90248 | 310.830.9153 | www.polarpower.com | info@polarpowerinc.com

ABCREV

8INITIAL RELEASE

7FRONT DOORREMOVEDFOR CLARITYDESCRIPTIONGROUND BUS THIS AREA(NOT SHOWN)

ECO#--50SCALE 1 : 4DETAIL ATYP

BY

6DATE

54322.6 NOM

4418.00 MINSERVICEACCESSGLEESON

3DO NOT SCALE DRAWINGFINISHQ.A.

MFG APPR.

2REV

1SHEET 2 OF 488-25-0603 A-1

DWG. NO.

ALUMINUM VERTICALENCLOSURE, 72 IN

249 E GARDENA AVE, GARDENA CA. 90248

1POLAR POWER INC.

83
SCALE: 1:24 WEIGHT:B

SIZE

1/22/2015 TITLE:DATECAD GENERATED DRAWINGDO NOT MANUALLY UPDATEAPPROVALSDRAWNFRACTIONS DECIMALS ANGLES±1/2° CHECKED±1/32"
X.X±0.1"
X.XX±0.03"
X.XXX±0.010"
MATERIALENG APPR.

DIMENSIONS ARE IN INCHESTOLERANCES ARE:UNLESS OTHERWISE SPECIFIED:

56.233.25

32.00

GAS FUEL PENETRATIONRECOMMENDED AREA.

BOTTOM

ELECTRICALPENETRATIONAREAUSED ON
APPLICATIONNEXT ASSY

6MINA

11FRONT
6 NOM

SERVICE ACCESSINSTALLATION FOOTPRINT, BOTTOM VIEWPROPRIETARY AND CONFIDENTIALTHE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OFPOLAR POWER INC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT
THE WRITTEN PERMISSION OF POLAR POWER INC. IS PROHIBITED.

COMMENTS:TYP ELECTRICAL PENETRATION

1.

R0.25 TYP

45°

52 NOM
39.00

64D76.4NOM

28 ISLE AREA
5.2

56MIN

3.5
38AB

CD

6 of 68220-603 series

installation layout

249 E. Gardena Blvd, Gardena CA, 90248 | 310.830.9153 | www.polarpower.com | info@polarpowerinc.com