Be sure to hand this instruction manual
to the end user.
２０１９年６月 第１５版 ＡＯ

SPOT HEATERＳＨ series MANUALThe spectacles listed are used as a guide for thesize of our products. It has nothing to do withIn order to improve the quality of this machine, the heater is annealed(oxide film formation) at the time of shipment.
Please note that the heater case may show a burnt color due to this treatment,
but there is no problem with performance.

KANSAI ELECTRIC HEAT CORP.

SPOT HEATER

SH serirs Safty Instruction
Introduction●Thank you for purchasing the Spot Heater SH series.
●This manual describes the necessary items for handling the spot heater SH seriescorrectly and safely●In order to fully demonstrate the performance of the Spot Heater SH series,
prevent
accidents, and continue good operation for a long period of time, not only maintenanceand inspection after operation but also from acquisition to actual operation Optimal
handling is required at each stage.
Before transporting, installing, piping, wiring, operating / operating, maintaining /inspecting, repairing / disassembling the Spot Heater SH Series, be sure tofamiliarize
yourself with this manual and handle it correctly and safely.
●For safety, do not modify the spot heater SH series.
Our company will not be responsible for any accident caused by modification.
●Please make sure that this manual is delivered to the person handling it.
●Please keep this manual in a safe place so that you can read it whenever you need.
●We may revise this manual and improve the spot heater SH series without notice.
●If you have any questions, please contact us.

SPOT HEATER ＳＨ series
It is a clean and safe electric heat source that uses industrial air (gas) as a medium,
which has a built-in A sensor (sensor for detecting hot air temperature of outlet) andB
sensor (sensor for detecting internal temperature of heater).Optimal heater forheating,heat processing and reaction acceleration, especially for resin spot melting, solder
melting and removal, tube spot shrinkage, caulking with hot air, etc.
For this reason, hot air (gas) is generated depending on the purpose of use,so there are important things to handle.

●In this manual, the following displays are used to handle the Spot Heater SH seriessafely.

!

DANGER：When it is assumed that a dangerous situation may occur
resulting in death or serious injury if mishandled.。

!

CAUTION：If mishandling could lead to a dangerous situation that could
result in moderate damage or minor injuries,
and if only property damage is expected.

Note that the items described in the caution may lead to serious results
depending on the situation.
Please be sure to observe these as important contents are described.

!
GENARALDANGER●Transport, installation, piping, wiring, operation / operation, maintenance /Inspection, repair / disassembly should be performed by an expert who isfamiliar with the handling of Spot Heater SH series.
There is a risk of injury, electric shock, or fire.
●Do not use the spot heater SH series in an explosive atmosphere.
There is a risk of injury or fire.
●Be sure to turn off the power before transporting, installing, piping,wiring,operating / operating, maintaining / inspecting, repairing / disassembling.
There is a risk of injury, electric shock, or fire.
●When turning on the power to the machine, do not touch the heating
element. There is a risk of electric shock.

Installation●Do not install the spot heater SH series in an unstable place.
There is a risk of injury.

PIPING●Be sure to connect the ground wire. There is a risk of electric shock.

WIRING●Do not forcibly bend, pull or pinch the wiring.
There is a risk of electric shock or fire.

OPERATIONCONTROL●Be sure to attach the spot heater SH series terminal cover removed forpiping and wiring work to the original position. There is a risk of electric
shock.
●Make sure that the discharged hot air does not hit the human body. There is a risk ofburns.

●Be sure to stop operation when there is a power failure. There is a risk of
injury.

●Do not touch the main body and piping during operation, as they will be hot.
There is a risk of burns.

●If an abnormality occurs, stop operation immediately.
There is a risk of fire.
Maintenanceinspection●Allow the main unit and piping to cool before performing maintenance and inspection
work.

There is a risk of burns.

!

CAUTIONGENARAL ●Please check if the product is as ordered. Do not use it wrong.
There is a risk of injury or damage.
●Do not use the Spot Heater SH series with any specifications other thanthose listed in the instruction manual.There is a risk of injury, electric shock, or
damage.

●Do not use a damaged spot heater SH series.
There is a risk of injury, electric shock, or damage.
●Do not insert foreign matter or fingers into the openings or gaps of the spot heater SH
series.

There is a risk of injury, electric shock, or damage.
●Do not apply a heavy load to the spot heater SH series.
There is a risk of injury or damage.
conveyance●Be careful not to drop it during transportation work.

Installation●Do not place flammable materials around the spot heater SH series.

There is a risk of injury or damage.

There is a risk of fire.
●Make sure the nameplate is always readable. Also, do not remove it.
There is a risk of accident.
PIPING●Install the spot heater SH series piping so that it will not come off or

WIRING

leak.There is a risk of burns, fire, or damage.
●Check that the rated voltage of the spot heater SH series and thenominalvoltage of the input voltage match. There is a risk of damage or fire.

●For wiring work, a qualified person should carry out the work in accordance with theelectricalequipment technical standards and extension regulations. There is a risk of electric shockor fire.
●Before driving, check safety and take safety measures so that no one other than the
OPERATION
personCONTROLin charge will be in danger. There is a risk of injury, burns, and damage.

Maintenance ●When measuring the insulation resistance of the spot heater SH series,
inspection

do not touch the terminals. There is a risk of electric shock.
●Be sure to attach the parts removed for maintenance and inspection
work to their original positions.There is a risk of injury or damage.

WASTE●When discarding the Spot Heater SH series, treat it
as general industrial waste. There is a risk of accident.

etc●Depending on the equipment that incorporates the Spot Heater SH series, it is necessary to comply with
the Industrial Safety and Health Act and the regulations of fire prevention regulations of each local
government.

ＣＯＮＴＥＮＴＳ
listing
１．CONFIRM
BORORE USE

２．INSTALL

１－１

PROCEDURE

１－２

CHECK THE ITEMS

１－３

CONFIRM THE MODEL NO. AND PART NO.

１－４

CONFIRM THE INSPECTION STAMP

２－１

INSTALLATION

page

1・２

２・３

３ー１

INTERNAL WIRING

３－２

TERMINAL LAYOUT

３－３

EXAMPLE OF WIRING

3・４

３．WIRING（１）NORMAL OPERATION
４・５・６（２）HOT-START OPERATION
３－４

WIRING

４．PIPING

PRECAUTION FOR PIPING

５．

PRECAUTION FOR OPERATION

８・９

６．EXCHANGE

PROCEDURE FOR EXCHAGING HEATERS

9・10

７．FAILURE

If you suspect a malfunction, please check.

11

guarantee

7

Be sure to enter the model and part number before use.

12
Required when maintenance.

１.CONFIRM BEFORE USE
１-１ PROCEDURE
When using this machine, follow the procedure below.

confirm the items １－２

Refer to the confirmation of the actual item.

confirm model and part no. １－３ Refer to the confirmation of model and part number.
confirm inspection stamp １－４

Refer to the confirmation of the inspection stamp

install

Please install it referring to P2.

wiringRefer to P3, P4, P5 and P6 for wiring.

operationー１－１-２ Confirm the items
Check that the following contents are included and that there are no abnormalities.

●main unit ●this manual ●adiabatic cover●code（３００ｍｍ・connector付×１）…for ＳＨ０２・２２●Anti-seizure agent for screws（×１）…for all models●wrench（ＳＵＳ１ｔ×１）…for ＳＨ２２
●starainer (MS-8) … for ＳＨ０２
wrench…30mm×30mm×t1

１-３ Confirm model & part no.
Please check the contents below to see if your product is the same.

model & part no.
・ＳＨ０２

Single phase １００Ｖ７００

１２００－０５５Ｋ

Single phase ２００Ｖ５５０

１２００－０６Ｋ

Single phase２００Ｖ６００

・ＳＨ２２ １２００－０８Ｋ
１２００－１．２Ｋ
・ＳＨ３１

power supply and heater vol.

１１００－０７Ｋ

１２００－２Ｋ
１２００－３Ｋ

Ｗ

noted placebody tail end

Ｗ
Ｗ

Single phase２００Ｖ８００Ｗ
Single phase ２００Ｖ１２００
Ｗ
Single phase２００Ｖ２０００Ｗ
Single phase ２００Ｖ３０００
Ｗbody tail end

chamber

１-４ Confrim inspection stamp

As for the spot heater SH series, all products have been thoroughly tested forhot
air operation, so we have shipped complete products. After the inspection, the pass
mark is stamped on the spot heater discharge port cap part (dustproof cap at the
timeof shipment), so be sure to confirm that the pass mark is stamped.

２．INSTALL
２-１

INSTALLATION●Use it at an ambient temperature of -10°C or more and +60°C or less (do not freeze).
●Keep the combustible materials away from the outside of the heater as it will become
hot.

●Installation is free if it is installed horizontally or if the hot air outlet is in the
upward range, but if it is downward, the heat inside the heater will flow back and the air
supply port and the terminal of the main unit will overheat when the air flow is stopped.
Please be sure to perform the cooling operation before stopping the air blow (Fig. 1 on the nextpage).

●Do not install in the following places.
◇A place exposed to wind and rain outdoors◇Near combustibles◇Places with a lot of dust and dust
◇Places where electrically conductive substances (carbon fibers, etc.), acidic gases, corrosive gases, etc. aresuspended

Load capacity of hot air outlet●During hot air operation, if a load is applied to the discharge port, it may be deformed due to high temperature and trouble
may occur.

Please refer to the above figure for installation and piping.
注） Do not fix this machine only with the screw part of the discharge port of the spot heater.
ー２－

INSTALLATION
図１【NORMAL OPERATION】【HOT-START OPERATION…TRC202 IS REQUIRED】

The heat does not flow back when the ventilation is stopped

That heat does not flow back

※Cooling operation is required when facing down
Cannot be used when facing downward from horizontal

Downward from horizontal※For downward operation, perform cooling operation
until the hot air temperature
at the A sensor position falls below 70°C.。

注）The hot air outlet should be horizontal or above horizontal
so that heat does not flow backwards.

３．WIRING●The spot heater SH series is a heater with two built-in thermocouples [K]: A sensor(for detecting the hot air temperature of the discharge port) and B sensor (for detecting

the temperature inside the heater). By using the A and B sensors and controlling
the temperature with the multi-controller TRC202, the heater can be used in all situations without
fusing.

By using the multi-controller TRC202, it is possible to control theperformance of the spot heater SH series to 100%.
注）Do not use the spot heater SH series without securing the B sensor as a protection circuit.
Not only will it prevent the heater from breaking, but it may also lead to serious accidents.
注）Please note that the operating temperature of the spot heater SH series will be low
when the multi-controller TRC202 is not used.

outlet hot-air temp.
（Ａ sensor）
hot-start temp.
（Ｂ sensor）
overheat prevention
temp.

WITH ＴＲＣ２０２

WITHOUT ＴＲＣ２０２

MAX ８００℃

MAX ５００℃

MAX ５００℃

unavailable

７００℃

５００℃

（Ｂ sensor）

３-１

INTERNAL●About the temperature detected by each temperature sensor…There is a temperature measurement (space) distance between the heating element (heater) and each temperature sensor,
and even with the same product, a temperature difference will occur in the temperature detected by each temperature sensor
due to the influence of the air volume and pressure used. ..

Ａ sensorhot-heaterＢ sensor

－３－

３-２

TERMINAL LAYOUT

ＳＨ３１ TERMINALTERMINAL NAME

USAGE

Ｍ３

HEATER TERMINALHEATER POWER
SUPPLY

Ａ＋・Ａ－

Ｍ３

Ａ SENSOR TERMINAL〔Ｋ〕

DETECTING OUTLET HOT-AIR
TEMP.

Ｂ＋・Ｂ－

Ｍ３

B SENSOR TERMINAL〔Ｋ〕

TERMINAL Ｎｏ．TERMINAL SIZE

Ｈ１・Ｈ2

SH02･22 connector（SH SIDE）

DETECTING HOT-STARTTEMP
DETECTING OVERHEATTEMP●For SH02・22, the terminal No. is written on the mark tube oftheattached wiring code (300 mm length, with connector).
This wiring cord is always required when wiring●Ask an electrician for power connection and grounding work.
●In order to prevent electric shock accidents, perform class D (class 3) grounding work.

※Each sensor of the spot heater may have energy equivalent to static
electricity due to electrostatic induction and electromagnetic induction when
the heater is energized. Therefore, do not touch the terminals of eachsensor directly while the heater is energized. You may feel a current of about
static electricity. If it is unavoidable to touch it directly during temperature
measurement, it is recommended to treat the sensor terminal with a connector.

３-３

WIRING（１） NORMAL…

NORMAL OPERATION BY DETECTING OUTLET HOT-AIR TEMP (A SENSOR)

SPOT

ShieldA SENSOR －B SENSORAir

B SENSOR －solenoid valve

AIR

HEATER ON/OFF
OPEN: HEATER OFF
CLOSE :HEATER ON

EARTH

INRENAL RELAY

vortex flow

Air

Air filter regulator

HEATER POWERHEATER POWERCOMPRESSERFast Action

Less than

From customer's

ＡＣ１００Ｖ・２００Ｖ
Input contact signal from outside to S7-S8 terminals of TRC202Circuit example
when operating <Hot air discharge> <Hot air stop>－４－

Factory BreakerEarth（２） HOT START…Operation to energize the heater to perform preheating operation when there is no wind
and to discharge the required hot air discharge temperature at the same time as blowing air.

SPOT

ShieldA SENSOR +A SENSOR －B SENSORAir

B SENSOR －OPERATION MODE
CLOSE: HOT-START

solenoid valve

AIR

HEATER ON/OFF〇OPEN: HEATER OFF●CLOSE :HEATER ON

EARTH

INRENAL RELAY

vortex flow

Air dryer Air filter

regulator

HEATER POWERHEATER POWERCOMPRESSER

Less than

Fast Action
From customer's

Factory Breaker

ＡＣ１００Ｖ・２００Ｖ
Circuit example when the contact signal from the outside is input to the S5-S6 terminals of the TRC202
to perform <hot air discharge> ⇔ <hot air stop + hot start circuit operation> operation

Earth

注）Hot start operation can be performed only when using TRC202.
注）Do not perform hot start operation for more than 10 minutes continuously.

caution on hot-air start operation●The maximum continuous operation time for hot start should be 10 minutes.
●When switching from hot start operation to normal operation (hot air operation),
perform normal operation (hot air operation) for at least the following time.

Half or more of the last hot start operation time
HOT-STARTOPERATION

Operate less than
10 minutes.。

NORMAL OPRRATION
HOT-START（HOT-AIR）
OPRRATION
Operate more than 1/2of the last hot start operation time。

eg） Hot start operation = continuous 5 minutes→ Subsequent hot air operation requires 2 minutes and 30 seconds or more.

◆Do not perform hot start operation for more than 10 minutes continuously◆
Attention●During normal operation, keep the S5-S6 terminals of TRC202 open.
●Close the S5-S6 terminals of TRC202 during hot start operation, and open the
S5-S6 terminals of TRC202 for normal operation (hot air discharge) at the same time as blowing
air.

●Be sure to use shielded compensating lead wire [K] for A sensor and B sensor
wiring and perform shield grounding work.
●Keep the A sensor, B sensor, S5 to S8, and COM-OUT wiring as short as possible.

Also, wire it so that it is not affected by noise or surge voltage.
●Do not apply voltage to the A sensor, B sensor and S5 to S8 terminals.
●If the A sensor and B sensor connections are reversed, the heater will overheat and disconnect.
（Out ofwarranty）－５－

Attention●Do not wire the A sensor, B sensor, S5 to S8, COM-OUT wiring and main
circuit(AC) in the same duct. It may cause a malfunction.
●When wiring SH02・22, it is necessary to connect the attached wiring cord(300 mm length, with connector) to the connector of SH02・22.
Or use the optional extension cord (with connector).
※If you do not use the attached wiring cord or optional extension cord for the SH02/22
connector, and do not match the size, it may cause contact failure.
●Due to the characteristics of solid state contactors and triacs, the circuit may
become conductive in the event of an abnormality, so be sure to incorporate a final safety circuit.

※ For wiring between the spot heater and the multi-controller TRC202,
be sure to check the instruction manual for the multi-controller TRC202.

３-４

WIRING－ＳＨ３１－
Insert each wire into the rubber wire, insert the wire together with the rubber wire hrough the wire hole oftheterminal cover, and wire to each terminal of the spot heater (the rubber wire has cuts).

After wiring, fit the terminal cover and tighten the wire rubber with a band.
terminal cover《Applicabe wire》
・heater wire … heat resistant wire （ＬＦＦ）2m㎡
・compensating lead wire … shielded compensating lead wire （ＶＸｰＧ）0.5m㎡

incoming rubberband●If you do not use the incomig rubber wire, the waterproof function of the terminal will be impaired.
If you use wires other than the above applicable wires for wiring, the waterproof function

may be impaired even if you do not enter the incoming rubber or tighten with a band.
注）At the end of wiring, make sure that there are no debris or chips left on the terminal.

ーＳＨ０２・ＳＨ２２ー
Since the wiring part of SH02/SH22 is a connector, be sure to use the attachedwiring cord (300 mm length, with connector).
We also sell an extension cord (with connector) as an option.
注）If you do not use the attached wiring cord or optional extension cord for the SH02/22
connector, and do not match the size, it may cause contact failure.
connector《accesories wiring code（length 300mm with connector.）》・heater … ＡＷＧ１８（0.75m㎡・no terminal treatment）
・A sencor 、Ｂ sensor compensating lear wire K… 0.3m㎡（no terminal treatment）

wiring code
（300mm）（with connector）※ACCESORIES The terminal No. is written on the marktube

at the end of the wiring code.

●When connecting/disconnecting the spot heater connector and the wiring cord connector
Do not insert or remove them slowly and without applying excessive load. If the wiring part is pulled strongly
or excessive force is applied, the contact of the wiring part may be damaged and the connector part may be damaged.

注）At the end of wiring, make sure that there are no debris or chips left on the terminal.
－６－

４．PIPING
Attention●Use pipes, gas pipes, tubes, etc. that withstand the blowing pressureand have sufficient heat resistance for the hot air outlet.

●If the piping becomes long, pressure loss will occur due to the friction coefficient, diameter, bending of the tube, etc.,
which will reduce the air flow and cause the heater to overheat. Therefore, be careful when selecting thepiping.

●The longer the pipe is from the hot air outlet, the more the heat will drop, causing the temperature to drop sharply.
Therefore, place it as close as possible to the object to be heated, or install sufficient heat insulating material.

●Connect the piping securely so that there is no air leakage.
●If cutting chips, etc. enter the spot heater from the air supply port during piping construction,
it will cause a short circuit inside the heater, which is extremely dangerous. Please pay attention to the piping work.

●When inserting an air hose, etc. into the air supply port, do not use tools suchaspliers, and do not use excessive force to insert it by hand.

ＳＨ２２ When using the piping screw of the air supply port
１）There is a notch in the << strainer holding metal
fitting >> of the air supply port. You can remove the<Strainer holding metal fitting> by inserting theincluded <SH accessory wrench> into this notch androtating it.
２）After removing the <Strainer holding metal fitting>,
connect to the piping screw (Rp3/8 [10A]) at the air
supply port.

SH22
WRENCHSTRANERretainer plate

注）If you remove the strainer retainer, the inside of the air supply
portContains a coarse strainer. 《Strainer》 enteredPlease use the piping
screws as they are.Do not remove this Strainer.
注）If you lose the <<SH Wrench>>, use a 1 mm thick plate instead.
※ 30mm×30mm×t１ｍｍ注）Check the <Strainer> regularly for clogging.
注）Strainer is a coarse type. Be sure to install an air filter, mist
separator, air dryer, etc., as the supplied air is clean air from which
moisture, dust, oil, solvent and other foreign matter have been removed.

To prevent foreign matter from entering SH02, attach the attachedstrainer in the middle of the suction side pipe before use.
band ２pcs※The attached hose band may not fit depending on the air hose used.
In that case, please prepare the hose band for the air hose used.
SH02

Wire meshstrainer ＭＳ－８

注） Regularly check and clean the wire mesh inside the strainer.
If the wire mesh is clogged, the spot heater will overheat abnormally.

※Follow the arrow for air direction.
－７－

５．OPERATION…Attention●When operating SH22 and SH31 at 650°C or higher, be sure to perform abreak-in operation only at the initial operation.
※It is necessary to use the multi-controller TRC202.
The TRC202 is equipped with a function (soft start) that suppresses the maximum temperature rise for 1 secondin order to suppress the overheat of the spot heater outlet temperature. However, depending on the method of use,
the spot heater Reaches maximum temperature within a few minutes. By performing a break-in operation,an oxide film can be formed on the nichrome wire, and stable hot air performance can be exhibited even at hightemperatures.

《Running-in method （eg： When operating with hot air at 800°C ）》① Setting 500℃ × 1 hour hot air operation → ② Setting 650℃ × 1 hour hot air
operation → ③ Setting 800℃ × 1 hour hot air operation※ During trial operation, do not limit the air flow to an extremely high level in order to accelerate the temperature rise.

●If the heater is energized without control without blowing air, the heater will overheat and break the wire within a
few minutes.
●Use clean air free from dust, oil mist, water, etc. as the air supply source.If dust, oil mist, or watergets
inside the heater, the insulation of the heater will deteriorate and the life of the heater will be
shortened.
Also, if dust gets inside the heater, it will be heated by the heat of the heater and willfly
out from the hot air outlet in the form of sparks, which is dangerous.
●It is safe to use an insulation transformer to prevent an electric shock accident
when water gets inside the heater.
●When using compressor air as the air supply source, reduce the supply pressure
to 490 kPa or less and supply air at the maximum usable air volume or less.
Also, use an air filter, micro alescer, etc.
※However, keep the supply pressure below 300 kPa during intermittent operation.
●The withstand pressure of 490 kPa of the main unit does not maintain thatpressure continuously, and a slight amount of air leakage may occur.
※ However, the withstand voltage of the main unit during intermittent operation will be 300 kPa or less.
●When supplying compressed air to the heater with a solenoid valve etc., shockpressuremay
be generated at the time of release due to the pressure difference between the primaryside
and the secondary side of the solenoid valve. This phenomenon may cause damage to theheater.
Takemeasures by incorporating an air tank or slow start valve between the solenoid valve and theheater.

●If dust or the like gets inside the heater, the heater or sensor will be disconnected ordamaged.
It is recommended to install a dust removal filter to remove dust in the supply
air.

※ For the dust removal filter, we recommend the CKD AF1003P series equivalent product as an example.
●Use the supply air at a temperature of 0°C to +70°C and humidity of 90%RH or less (non-condensing).
●It is dangerous to use it when flammable gas or flammable liquid vapor is mixed.
●Since the heater case gets hot during operation, do not remove the accessory
insulation cover etc. to prevent burns.

●After the operation is stopped, if the humidity in the piping is high, condensation may form. If the insulation
deteriorates
due to condensation, blow it for a few minutes to remove the condensation and restore the insulation.

－８－

５．OPERATION…Attention●When using SH22 (600W) with hot air temperature of 600℃ to 800℃, be sure to
remove the heat insulation cover.Since the heat radiation from the SH22 body is huge,
the temperature may not rise to over 600℃.
※The temperature range of the two-dot chain lineof the SH22 hot air curve in the catalog●If the outlet of the spot heater is open to the atmosphere, if there is a slight breeze
above the level of natural convection in the installation atmosphere, the cooling effectfrom the outlet of the spot heater may increase, which may prevent the hot air temperature from rising. ..
Especially when using SH22 (600W), the hot air temperature may not rise above 600℃.
※The temperature range of the two-dot chain lineof the SH22 hot air curve described in the catalog●When using SH31 near the maximum temperature, do not suddenly increase the supply air
amountin order to cool or lower the operating temperature. The heater insulator will be damaged.

●For SH31 only, if the heater breaks during use, the spare heater can be
replaced.
Since the spare heater is annealed, never touch the nichrome wirewith bare hands when replacing the spare heater.

６．HEATER EXCHANGE●If the spot heater SH31 heater breaks during use, the heater part can be replaced.Refer to the optional parts in the spot heater catalog (No. 6) and check the heater capacity before
replacing.

注）The heater part of the spot heater SH02・22 cannot be replaced.
FOR ＳＨ３１

SPARE HEATER

MODEL：1200-2K…SINGLE PHASE 200V 2000W

MODEL：1200-3K…SINGLE PHASE 200V 3000W

MODEL：SH-31S《付属品》・PACKING（BLACK）×１・VIS×６
・Ｏ RING OF VIS×６●Please be aware of the following points when handling the spare heater.

・ Never touch the nichrome wire with bare hands.
・When replacing the nichrome wire, make surethat no scratches or impurities adhere to it.

・Hold this part for
replacement work.

・Please do not hold this part.

・The tip of the A sensor is adjusted to the position about 30 mm from the insulator
・Be sure to use the included packing and screws (with O-ring: 6 pieces).
.Do not bend or stretch it any further.Also, be careful not to damage it.

－９－* For SH2C, use the O-ring and screws on the SH body side.

〔SPARE HEATER replacement procedure〕

heater casespareheaterスペアヒータterminal coverターミナルディスクpacking
パッキン
terminal disk

terminal side of heater casefixing screws（with o ring）※The old type spot heater used a washer for the fixing screw, but it is not used for this spare heater① Make sure that the power is off, and then remove the terminal cover and each terminal.
※Never touch the nichrome wire with bare hands.
② (2) Remove the fixing screws (6 places) on the outer circumference of the terminal partandpull out the terminal together.At this time, remove any residue (heater wires, water, dust,
etc.)
inside the heater case.
Ａ sensor terminal※Discard the removed fixing screws, screw O-rings, and packings.
Do not reuse.
③ After confirming that no dust or foreign matter adheres to the surfaceof the packing and the terminal surface of the heater case, insert the spare heaterin the heater case and tighten the fixing screws firmly.
After installing, blow air once and check if there is any air leak.
* Place the spot heater horizontally with the air supply port directly below,
and insert the spare heater so that the A sensor terminal (A+/A-)
is directly above. (See the figure on the right)④ After checking each terminal and making connections correctly, attach the terminal cover.
Attention

air inlet

When tightening the spare heater with the fixing screw, be sure to tighten
itdiagonally.At this time, do not tighten each fixing screw completely at one time,

but be sure to repeat it evenly several times.Finally, tighten each fixing
screw
evenly with a tightening torque of 20 kgf/cm2.

If the heater is broken, there is always something to do. Before starting operation again, carefully
check and eliminate the cause before starting operation.

－１０－

７．Failure diagnosis
If you suspect a malfunction, check the following items.

No wind or little
wind

Malfunction of
blowerCheck the AIR source.

The pipe is
disconnected on theway

Check the connection partof the pipe.

The pipe is too thin andtoo long, or there is a
sharp bend in the pipe.

Design piping with lowpressure loss.

Filter clogging in the
middle of piping

HOT-AIR does notcome out

Solenoid valve, Damper,
etc. are closed

Check the opening andclosing of the electric
circuit and damper.

No power to heater

Check the wiring.

Wiring is not correct

Check the electric circuit
and wiring.

Heater is
disconnected.

Outlet temperature does
not reach the set temp

Clean the filter .

Check the current valueand heater resistancevalue.

Too much airflow
for the set
temperature

Adjust the air flow rate.

Not properly set
for useCheck the usage status
and make the correct
settings.

If the problem cannot be solved by the above contents, or if a problem otherthan the above occurs, please contact us.

In order to use this machine more safely, we recommend that you perform aself-inspection if the usage period exceeds 10 years.
【SELF-CHECK ITEMS】●Insulation resistance measurement●Heater current value measurement/resistance value measurement●Re-tightening inspection of each terminal block●Other visual inspection●Inspection and cleaning of foreign substances in the inside and the suction port
For self-check , please contact your local electrician.
－１１－

KANSAI ELECTRIC HEAT
CORP
4-18, Takaidanishi 5-chome, Higashiosaka city
Osaka 577-8566 Japan－１２－