Panasonic YX-09KGC2 User manual

Operating Instructions
LIQUID COOLING UNIT
Model No.：YX-09KGC2
● Thank you for your purchase of Panasonic welding power source.
● Before operating this product, please read the instructions carefully and save this
manual for future use.First of all, please read “Safety precautions” or “Safety manual”.
● SPEC. No.：YX-09KGC2HGP
Panasonic Welding Systems (Tangshan) Co., Ltd.
WTX021TE0PAA02

Table of Contents
1 SAFETY......................................................................................................................................................................1
1.1 WARNING SYMBOLS FOR SAFE USAGE...........................................................................................................................1
1.2 SAFETY PRECAUTIONS...................................................................................................................................................2
2 INSTALLATION..........................................................................................................................................................4
2.1 INSTALLATION AND OPERATION SITE...............................................................................................................................4
2.2HANDING AND TRANSPORT.............................................................................................................................................4
3 DESCRIPTION OF EACH PART...............................................................................................................................5
4 CONNECTION............................................................................................................................................................6
5 OPERATION...............................................................................................................................................................8
5.1SUPPLYING COOLANT TO THE TANK................................................................................................................................8
5.2PRIOR TO OPERATION.....................................................................................................................................................9
5.3OPERATION PROCEDURE................................................................................................................................................9
6 ABOUT COOLANT...................................................................................................................................................10
7 MAINTENANCE........................................................................................................................................................11
7.1 DAILY CHECK .............................................................................................................................................................11
7.2 PERIODIC CHECKS.........................................................................................................................................................12
8 TROUBLESHOOTING.............................................................................................................................................13
9 COMPONENT CONFIGURATION DIAGRAM AND CONFIGURATION TABLE.................................................15
9.1COMPONENT CONFIGURATION DIAGRAM......................................................................................................................15
9.2COMPONENT CONFIGURATION TABLE...........................................................................................................................16
10 DIMENSIONS.........................................................................................................................................................17
11 CIRCUIT DIAGRAM...............................................................................................................................................18
11.1COOLANT CIRCUIT DIAGRAM.......................................................................................................................................18
11.2ELECTRICAL CIRCUIT DIAGRAM...................................................................................................................................18
12 PACKING DETAILS................................................................................................................................................19
13 RATED SPECIFICATIONS.....................................................................................................................................20


Safety
1
1 Safety
1.1 Warning symbols for safe usage
Each symbol describes things to be observed to prevent you and other personnel from hazardous conditions or
damage to property.
●The followings explains harzardous conditions or
damages that are classi-fied into the following three
levels.
●The following symbols indicates things to be
observed.
Things that MUST NOT be
performed.
A hazardous situations including death or serious
personal injury is imminent.
Things that MUST be performed.
The potential for a hazardous accident including death
or serious personal injury is high.
Things attention must be paid to.
The potential for hazardous accident including light
personal injury and/or the potential for property
damage are high.
◆Disclaimer：
Panasonic Welding Systems（Tangshan） Co., Ltd., (hereinafter called “PWST”) and its affiliates (including any
subcontractor, sales company or agent) shall not assume or undertake any responsibility or liability of the followings:
•Any problem arising out of, or directly or indirectly attributable to,the failure of user to carry out those normal
maintenance, normal adjustment and periodical check of this product.
•Any problem arising out of any force majeure, including but not limited to, act of god.
•Any malfunction or defect of this product that is directly or indirectly the result of any malfunction or defect of one
or more related parts or products that are not supplied by PWST. Or any problem arising out of, or directly or
indirectly attributable to, the combination of this product with any other product, equipment, devices or software
that is not supplied by PWST.
•Any problem arising out of, or directly or indirectly attributable to,user’s failure to strictly carry out or follow all of the
condition sand instructions contained in this instruction manual, or user’s misusage, mishandle, operational miss
or abnormal operation.
•Any problem arising out of this product or the use of it, the cause of which is other than the foregoing but is also
not attributable to PWST.
•Any claim of a third party that this product infringes the intellectual property rights of such third party that are
directly or indirectly caused by user’s use of this product and relate to the method of production.
●The description of this manual is based on the contents as of November, 2021.
●The contents of this manual are subject to change without further notice.
●English version is the original instructions.

Safety
2
1.2 Safety precautions
Welding power source
Observe the following instructions to
prevent the hazard.
(1)Never use the welding power source for other than
welding purpose. (e.g. Never attempt to use the
welding power source for pipe thawing.)
(2)It is very important to comply with all instructions,
safety warnings, cautions and notes mentioned.
Failure to do so can result in serious injury or even
death.
(3)Work of driving source at the input side, selecting
work site, handling, storage and piping of high
pressure gas, storage of welded products and also
disposal of waste should be performed according to
the operating instructions and national, state and
local codes and regulations.
(4)Prevent any unauthorized personnel to enter in and
around the welding work area.
(5)Pacemaker wearers should consult their doctor
before going near arc welding. Magnetic fields can
affect pacemakers.
(6)Only educated and/or skilled persons who well
understand this welding power source should
install, operate, maintain and repair the unit.
(7)Only educated and/or skilled persons who well
understand the operating instructions of the unit
and are capable of safe handling should perform
operation of the unit.
Against electric shock
Observe the following instructions to
prevent the hazard.
(1)Do not touch live parts.
(2)Grounding of the case of the welding power and
base metal or a jig electrically connected to the
base metal must be performed by educated and/or
skilled persons.
(3)Before installation or maintenance work, turn off
power at the power box, wait it for at least five
minutes to discharge capacitors. Significant voltage
may exist on capacitors after turning off power at
the power box so it is imperative to check to make
sure that no charged voltage present at capacitors
before touching any parts.
(4)Do not use undersized, worn, damaged or bare
wired cables.
(5)Connect cables firm and insulate connection parts.
(6)Keep all cases, panels and covers securely in
place.
(7)Do not handle the welding power source with torn
or wet gloves.
(8)Wear safety harness in case of working above floor
level.
(9)Turn off all equipment when not in use.
(10)Perform periodic checks without fail and repair or
replace any damaged parts before using the power
source.
Ventilation and protective equipment
Oxygen deficit, fume and gas
generated during welding can be
hazardous.
(1)When conducting welding in the bottom of the tank,
boiler or hold as well as legally-defined sites, use a
local exhauster specified by the applicable laws and
regulations (occupational safety and health
regulation, rules on preventing suffocation or etc.)
or wear protective breathing gear.
(2)To prevent dust injury or poisoning by the fume
generated during welding, use a local exhauster
specified by the applicable law (occupational safety
and health regulation, rules on preventing injury by
inhaled dust or etc.), or wear protective breathing
gear.
(3)When conducting welding in a confined area, make
sure to provide sufficient ventilation or wear
protective breathing gear and have a trained
supervisor observe the workers.
(4)Do not conduct welding at a site where degreasing,
cleaning or spraying is performed. Conducting
welding near the area where any of these types of
work is performed can generate toxic gases.
(5)When welding a coated steel plate, provide
sufficient ventilation or wear protective breathing
gear. (Welding of coated steel plates generates
toxic fume and gas.)
Against fire, explosion or blowout
Observe the following cautions to
prevent fires explosion or blowout.
(1)Remove any combustible materials at and near the
work site to prevent them from being exposed to
the spatter. If they cannot be relocated, cover them
with a fireproofing cover.
(2)Do not conduct welding near combustible gases.
(3)Do not bring the hot base metal near combustible
materials immediately after welding.
(4)When welding a ceiling, floor or wall, remove all
flammables including ones located in hidden
places.
(5)Properly connect cables and insulate connected
parts. Improper cable connections or touching of
cables to any electric current passage of the base
metal, such as steel beam, can cause fire.
(6)Connect the base metal cable at a section closest
to the welding part.
(7)Do not weld a sealed tank or a pipe that contains a
gas.
(8)Keep a fire extinguisher near the welding site for
an emergency.

Safety
3
Installing shielding (curtain etc.)
Arc flash, flying spatter, slugs, and
noise generated during welding can
damage your eyes, skin and hearing.
(1)Install a protective curtain around the welding
manipulator site to prevent the arc flash from
entering the eyes of people in the surrounding area.
(2)When welding or monitoring welding, wear safety
glasses with sufficient light blocking structure or
use a protective mask designed for welding
operation.
(3)When welding or monitoring welding wear protective
clothing designed for welding operation, such as
leather gloves, leg cover and leather apron, and also
wear long-sleeve shirts.
(4)Be sure to wear noise-proof protective equipment if
the noise level is high.
(5)The larger the welding current is, or in case of AC
TIG or MIXTIG welding, the larger the AC frequency
is, the larger the arc sound becomes.
Gas cylinder and gas flow regulator
Overturn of gas cylinder and blowout
of gas flow regulator can cause
injury.
(1)The gas cylinder must be handled properly according
to the applicable law and in-house standards.
(2)Use the gas flow regulator that is supplied or recom-
mended by our company.
(3)Read the instruction manual of the gas regulator prior
to using it, and observe the cautions in the manual.
(4)Secure the gas cylinder to a dedicated gas cylinder
stand.
(5)Do not expose the gas cylinder to high temperature.
(6)When opening the valve of the gas cylinder, do not
bring your face close to the discharge outlet.
(7)When the gas cylinder is not used, be sure to install a
protective cap.
(8)Do not hang the welding torch on the gas cylinder, or
touch the gas cylinder with the electrode.
(9)Do not attempt to disassemble or repair the gas
regulator. Such works require special knowledge.
Rotating parts
Rotating parts can cause injury.
(1)Keep away from rotating parts such as cooling fans，
and feed roller of the wire feeder, or hand, finger(s)，
hair or part of your clothes may be caught by the parts
resulting in injury.
(2)Keep all covers, panels and cases closed when
using the product.
(3)Maintenance work and repair should be perform only
by educated and/or skilled persons who thoroughly
understand welding machines. While performing
maintenance work or repair work, provide fence or the
like around the welding machine so that unauthorized
person can not come close carelessly.
Welding wire
Welding wire, especially wire tip part
can cause injury.
(1)Do not perform inching operation or pull the torch
switch with your eyes, face or body close to the end
of the welding torch - wire extends out from the end
of the welding torch and may stick into the eye, face
or body.
(2)In case of using a torch cable with the resin liner,
straighten the torch cable and reduce the preset
feed amount (current) to a half or less before
applying the wire inching.
(3)Performing wire inching while torch cable has been
bent extremely can cause the wire to pierce the
resin liner and cable. Make sure to replace any
damaged liner or cable with a new one, or
damaged liner/wire can cause gas leak or dielectric
degradation.
Against insulation deterioration
Insulation deterioration can cause fire of
welding power source.
(1)Keep enough distance from welding power source
when performing welding or grinding work so as to
prevent spatters or iron particles from getting
into the power source.
(2)Perform check and maintenance work periodically
so as to prevent insulation deterioration due to
accumulated dust or dirt.
(3)When spatters or iron particles get into the welding
power source, turn off the power switches of the
welding power source and power distribution box,
and then blow out.
(4)Make sure to replace any damaged liner or cable
with a new one as use of damaged liner/cable may
cause gas leak or dielectric degradation.
(5)In order to avoid dust and dirt to be collected inside
of the power source, make sure not to leave the panel
and bolts (including eyebolts) open and removed.
About coolant
Improper use of coolant can cause
injury
(1)Before and after handling or moving, please clean the
coolant in the coolant tank.
(2)If the coolant is not cleaned in the coolant tank, it
may cause leakage of coolant, resulting in leakage
and rust.
(3)During operation, the coolant will be at high
temperature.
(4)Pease treat the coolant after the coolant has cooled
down.
(5)Please use glycol coolant, otherwise, the device may
be damaged.
(6)The freezing point of the coolant should be 10 ℃
lower than the minimum temperature of the
environment in order to prevent the pipeline rupture.
Otherwise, the device may be damaged.

4
2 Installation
In order to avoid personal accidents during operation, please wear proper protective gloves, safety
shoes, long sleeve clothing and other protective equipment.
2.1 Installation and operation site
● In order to ensure the safety of the operator and maintain the performance of the product, please set it in the
site meeting the following conditions.
No. Installation and operation site
1 Free from direct sunlight, rain or water spray.
2 Locate indoor with less humidity and dust.
3 ambient temperature range from -10 to 40 ℃℃
4 Maintain an appropriate distance of 20 cm or more from
any wall or other devices.
5 Free from abnormal vibration or impact.
6 Free from generation of oily vapor or any
harmful corrosive gas.
7 Horizontal place.，The inclination angle is less than 10 °
● This machine is for indoor use ， and its enclosure protection class is IP21S,not suitable for storage and use in
rain or snow
● If the liquid cooling system needs to be placed on an inclined plane, anti overturning measures should be taken.
Note：
● Fuse shall be set in the input protection (distribution box) equipped with each liquid cooling system, and the
fuse with AC 500V or above shall be used. The recommended fuse capacity is 6A.
2.2 Handing and tansport
● In case of transferring the unit on the floor
Note：
In order to avoid damaging the fixed foot, it is better to replace the mobile caster before moving the device.
（Mobile casters are optional）
Empty the coolant in the tank before transferring the unit.
Transfering the unit with the coolant water in the tank may cause the coolant water to
trickle out of the tank, which may lead to short circuit or rusting.
Prior to transferring the unit, either empty the coolant water in the tank or remove the tank
from the unit.
● In case of mounting on our welding power source
It is necessary to use a fixing bracket unit (separate sales),Specific information can be consulted with local
agents or contact the company.

5
3 Description of each part
No. Name Description
1 POWER Power switch. (○: OFF, I: ON)
2 INDICATOR Power lamp (It is lit when the power (1) is turned on.)
3 Secondary power
fuse（3A）
Secondary power fuse.
[CAUTION] Before inspection, replacement work of the fuse(s), make
sure to turn off the power switch to prevent electric shock.
4 FLOW CHECK
An observation window to observe the water flow from the “WATER
INLET”.
[CAUTION] This indicator does not measure flow.
5
COOLANT OUTLET
A capped outlet to connect hose for supply coolant.[Screw size: 5/8-18
UNF]
[CAUTION] * Use the cap to prevent water leakage when the hose is
disconnected.
6
COOLANT INLET
A capped inlet to connect hose for back-coolant. [Screw size: 5/8-18
UNF]
[CAUTION] * Use the cap to prevent water leakage when the hose is
disconnected.
7 MOTOR SHAFT
An opening to be used to rotate the motor shaft manually using minus (-)
screwdriver.
* Do not inset the screwdriver while the unit is in operation.
8 COOLANT SUPLLY A cooolant supply port.
[CAUTION] * Keep the lid on unless refilling coolant.
9 COOLANT LEVEL
Min.
It indicates the minimum cooolant level. Make sure to keep the cooolant
beyond the level at any time (including during operation.)
10 Setscrew (2 pcs.) Retaining type setscrews for front cover.
* The front cover needs to be open to attach or remove the tank or filter.
11 Adjustable anchor
Casters to be used to transfer the unit on the floor.
*
Replace them with fixing legs if it is necessary
12 Flow switch socket
Flow switch signal output port ， This switch is closed during normal cycle,
otherwise it is off
13 AC380V Input power cord（1.5 mm2，2m）
（Please connect the input power）
14 Air vent for cooling
fan
Air vent for cooling fan.
[CAUTION] * Do not place anything that can block proper ventilation.
15 Ground Ground terminal（M6 bolts）It must be grounded reliably.

6
4 Connection
<< IMPORTANT >>
• Connection examples are for reference only. When assembling this product, you should also read
the instruction manual of the power sourse.
• For safety, connect the input power cable last.
• As for a power box (customer procurement) and grounding resistance, please consult your company’s
facility engineer.
• In case of re-connecting used water hoses or the water cooling unit, make sure to rinse their water
paths prior to connecting work so as to remove remaining microorganisms or so.
• Make sure to connect each connection completely.
 Example of connection with coolant cooled TIG welding power sourse
 Example of connection with air cooled TIG welding power sourse

7
 Example of connection with MIG / MAG welding power soerse

8
5Operation
5.1 Supplying coolant to the tank
When adding or replenishing coolant, please proceed from the front [coolant supply port]
●Matters need attention in supplying coolant to the tank
Touching any live electrical parts can cause fatal electric shocks or
severe burns.
To avoid casualty accident, please observe the following precautions.
Prior to performing the work, make sure to turn off power at the power box (customer
procurement) and also at this product.
NOTE
* Make sure to wipe up any spilt coolant on the welding power source or on this unit.
Such spilt water causes malfunction of the products.
* Make sure to connect hoses (fingertip joint) completely (until it clicks).
Poor connection may cause water leakage or air suction, which, as a result, causes
malfunction or pump failure.
（1）Once the coolant splashes on the unit or the product, it may cause malfunction，please wipe off the
drops immediately.
（2）When connecting the coolant pipe, make sure it is reliable and tight.
（3）If the coolant pipe connection is not reliable, it will leak or suck in air, resulting in poor operation and
pump failure.
（4）When the connection is reliable, there will be a sound of "click"
●Procedure:

Prepare 9 liters of coolant
（a）About the coolant in Chapter 5;
（b）9 liters : To supply coolant to the tank.
（c）About 1 liter : To refill the tank after starting the
operation as some water will be needed to fill the pipe
conduit for the torch or the like.
 Remove the tank from the unit.
Removal method of coolant tank
（a）Open the front panel.
（b）As shown in the figure on the right，
Remove t he qui ck p lug connectors of ○
1and
CAUTION：
○
2to t he
coolant tank in sequence
Please note that residual coolant drips when disconnecting
fingertip joints ○
2
（c）Pull the water tank toward.
,please use cotton yarn to absorb.
*Keep the tank in a horizontal position until the tank is
set back to the unit after completion of coolant supply.
 Unscrew the lid of the tank, and then supply
the coolant.
* Make sure to supply coolant up to the“COOLANT LEVEL
Min.” indicator or above.Screw the lid of the tank after water has supplied.

9
CAUTION：Keep the level after the coolant injection until the installation is completed.
 Set t he t ank bac k t o t he un it, a nd t hen c onnect t he “ COOLANT OUTLET” hose and t hen the
“COOLANT INLET” hose.
 If necessary②can be replaced by a filter assembly，Consult local agent for details.
Observe the below instructions to prevent electric shocks.
The coolant wnater becomes very HOT while operating.
Make sure to cool down the water before handling.
1. Prior to filling or emptying the coolant water, make sure that the water is cooled down.
2. Do not touch hose joint fittings or etc. while operating.
3. Check and maintain after confirming the coolant is cooled down.
5.2 Prior to operation
Check to make sure that the tank contains water above the “Min.” level to prevent idling.
(Idling causes pump failure.)
5.3 Operation procedure
1、Turn ON the power switch of this unit, then the pump start circulate the coolant inside the torch.
On first use
●Please note that in case of using this unit for the first time, it will take about ten seconds after power is
turned on before start circulating the coolant, although this product does not require pump priming.
●Check t he “ Flow c heck” meter f or water f low condition.
※This indicator only confirms the state of the fluid and cannot read the flow rate.
2、If t he w ater l evel i s b elow t he “ Min.” l evel, s top operation and refill the tank with the coolant.
3、After the completion of welding operation, let the c oolant to cool down before turning off the
power switch of this unit.

10
6About Coolant
 Please use glycol type coolant（Other salt and alcohol antifreeze may corrode metal parts such as
welding torch and pump）.
CAUTION：
○When us ing t he co olant, pl ease us e t he sa me br and o f c oolant f rom t he sa me manufacturer. I t i s
forbidden to mix the coolants from different manufacturers.
○Please c hoose t he coolant acco rding t o t he l ocal minimum t emperature，The f reezing point of the
coolant should be 10 ℃ lower than the minimum temperature of the service environment.
 Periodic replacement of coolant is required，inorder to avoid fouling in the coolant tank.
Glycol coolant Once a year
 Empty the tank and pipes if the unit is to be left unused for a long period.
Some components in the coolant can settle in t he coolant pipes,which ca n cause t rouble rotating t he
pump.
Method of removing cooling liquid.
○Use compressed ai r to bl ow the co olant i nto t he co olant tank f rom the coolant i nlet and out let of t he
device；
○Remove co olant tank，pour out t he co olant，clean t he i nside o f t he co olant t ank w ith cl ean w ater，
invert the coolant tank for a moment，cover the box，place the coolant tank into the unit.
Do not drink the coolant and l et the coolant contact the eyes or other
parts, otherwise there may be diarrhea, poisoning and other risks.

11
7 Maintenance
7.1 Daily check
 It is important to carry out daily checks to utilize the most of the high performance of the unit and to maintain
safe operation.
 Check the check points in the following tables. Clean and replace parts or components if needed.
 In order to maintain high performance and functions, use Panasonic genuine parts as replacement.
Touching any live electrical parts can cause fatal electric shocks or
severe burns.
Prior to performing the following work, make sure to turn off power at the power
box (customer procurement) and also at this product.
■ Checks before turning ON power
Part Check points Note
Ground cable • Check to make sure that work ground
cable connections are secure.
• Check ground terminal connection for
To prevent electric shocks,
check them without fail.
Input cable(s) • If a trunk cable is used,check if the relay
connections are secure and if the live parts for
exposed.
• Check cable film for damage or wear.
• Check if any undoe force is applied.
To prevent electric shocks,
and safe operation check
them without fail.
Water flow
switch
• If it is not in use, check if connector cover is on.
• If it is in use, check the lock ring of the
counterpart connector for tightness.
To secure safe operation,
check them without fail.
Power switch • Check for loose mounting. /
Coolant Tank <Check with the front panel is closed.>
• Check if the water is above the “Min.”.
• Check the lid of the tank for tightness.
Refill the tank to appropriate
level if it is below the “Min.”.
■ Checks after starting operation
Part Check points Note
Power lamp • Check if the lamp turns on correctly. /
Flow check <Check with the front panel is closed.>
• Check if water flows.
• Check bubbles are formed in the coolant.
See “Troubleshooting” for
remedy.
Pump area • Check for any abnormal noise from pump
area.
See “Troubleshooting” for
remedy.

12
7.2 Periodic checks
 Periodic checks are required in addition to daily checks to maintain performance of the unit for long use.
 The periodic checks include careful inspection to details, such as cleaning and inspection of inside of the unit.
Touching any live electrical parts can cause fatal electric shocks or
severe burns.
• The following work must be performed by educated and/or skilled persons.
• Before doing any check, make sure to turn off power at the power box and this unit
unless it is necessary.
• If it is necessary to remove any panel (such aas top panel) of this unit provide fence or
the like around the unit to prevent any person to get close to it.
The coolant becomes very HOT while operating.
Make sure to cool down the water before handling.
• Prior to filling or emptying the coolant water, make sure that the water is cooled down.
• Prior to performing maintenance and inspection work, make sure that the water is cooled
down.
IMPORTANT When “WATER INLET” or “WATER OUTLET” hose is disconnected,
put the cap provided for each to the port promptly to prevent water leak from the unit.
IMPORTANT Use only neutral cleansers to clean plastic parts，otherwise parts of the plastic
may melt or be deformed.
Frequencya Check points Note
1 - 4 times a month Around tank: Check for water leakage. Open the front panel to check.
Every year or
Every 2000 hours.
Coolant (in case of using PANA COOLANT):
Replace with a new one. /
Interior and Exterio
r
:
Check hoses for deterioration.
Check connections for tightness.
Check screws for tightness.
Cleaning.
<Cleaning>
In case of air cleaning, use dry
air only.
Withstand voltage test
Insulation resistance test
Check especially for
deterioration of motor
Every 2.5 years. or
Every 5000 hours.
Mechanical seal, bearing and pump:
Check pump mechanical shaft seal for leakage.
Check bearings for abnormal rotation.
When the mechanical shaft seal of the pump
leaks liquid or the bearing rotates
abnormally,replace with a new pump.
Contact sales distributor or
Panasonic representatives.
Cooling fan: Replace with a new one. /
Withstand voltage test
Insulation resistance test
Check especially for
deterioration of motor
a.“Frequency” in the table are set with safety in mind. However, shorter frequency is recommended in case
that opera-

13
8Troubleshooting
Touching any live electrical parts can cause fatal electric shocks or severe
burns.
• The following work must be performed by educated and/or skilled persons.
• Before doing any check, make sure to turn off power at the power box and this unit
unless it is necessary.
• If it is necessary to remove any panel (such as top panel) of this unit provide fence
or the like around the unit to prevent any person to get close to it.
In the event of an error, refer to the following troubleshooting table.
For further assistance, please contact sales distributor or Panasonic representatives.
※To maintain high performance and functions, Panasonic genuine parts as replacement

14
Error Probable causes Remedy
1Power switch is ON,
but power lamp does not turn
on
(or goes off during operation.)
Power has not supplied. Check the power switch at the power box
(customer procurement) and wiring.
Fusion of the power
fuse.
Replace with a new fuse.
2
Power lamp is ON,
but the pump does not rotate
(or stops during operation.)
Overload protection
switch trip※1
•No coolant freeze-up.
1. Press the red button of the Overload
protection switch and check the power
voltage and correct.
2. If no:
Manually rotate the pump and check the
motor rotation. ※2
3. If no:
Clean all pipes including pump and torch
thoroughly, and replace the coolant.please
use special glycol coolant (freezing point is
10 ℃
lower than the service environment).
4. If no:
Replace the mechanical seal or bearing
(or
pump).
•Coolant freeze-up. Use sp
ecial glycol coolant (freezing point is
10 ℃ lower than the environment)
• Abnormal power input
voltage
Correct input voltage
3Pump makes an abnormal
Pump failure Do the remedy 3) if not, then 4) of the
“Overload protection switch trip”.
4Pump rotation is not smooth. The coolant
components
are firmly fixed inside
the pump.
5
Pump rotates,
but coolant does not circulate
(or flow rate is low).
Shortage of coolant. Replenish coolant.
Clogged filter Clean the filter
Clogged pipe Clean all pipes including torch thoroughly,
and replace the coolant with a new one.
6
Leakage of upper joint of water
diversion assembly
Aging of O-ring in joint Replace O-ring
The screw is too tight The screw can be pushed to the internal
joint, but not too tight
NEVER TOUCH the motor shaft with a hand or tool at operation
※1.Overload protection switch
Overload protection switch：If the pump is overloaded, the pump will stop and the red button of
overload protection switch will eject.Please manually solve the overload fault, and then manually press the
red button to reset, and then start the machine again.
※2.Use a screwdriver to assist in turning the motor shaft.（Note: the overload protection switch is
located at No. 36 in the figure on the next page）
Left side panel of the unit (left) and motor inside the unit (right).

15
9Component configuration diagram and configuration table
9.1 Component configuration diagram
00
2
3
4
5
6
7
8
10
11
13
14
15
16
17
22
12 12 12 12
18 20
11
21
23
24
25
26
29
30
31
32
9
28
1
27
19
28
23
23
33
34
35
36

16
9.2 Component configuration table
序号 Part name Part model Q’ty Remarks
1 Power switch LAY39-20X/K2X 1
2 Power indicator light BN2TAC200VF 1
3 Fuse holder FHS07F 1
Glass tube fuse 61NR030H 1 3A
4 Simple flowmeter LZT-06 1
5 Dust proof accessories TSM15605-□□ 2
6 Rubber cover SG30T 1
7 handle MHG50107 2
8 screw TSM15946-□□ 2
9 Two core socket MT25B2PM 1
10 Cable fixing clip AG-20LB 1
11 Grounding screw GB5780M6X16H62 1
12 Adjustable anchor TSM13357 4
If it needs to be replaced with
casters， please contact the
local agent
13 PVC tube PVCH4.8X8.2K 0.27 m
14 Radiator TSM13363-□□ 1
15 Fan 6C-200B 2
16 Pipe joint assembly WTUJH00002□□ 1
O-ring P10-4D70N 2
17 Diversion assembly WTXJH00004□□ 1
18 Pipe joint TSM12988-□□ 1
19 Flow switch SSALFW01 1
20 Pipe joint TSM12989-□□ 1
21 Pipe joint TSMJ0114-□□ 1
22 Rubber hose CH9X2BK 1.3m The total length is 1.3m
23 Nut CMN5/801-02 4
24 Inlet connection TSMJ0248-□□ 1
25 Outlet connection CJH00005 1
26 Pump LNY2841.M0022 1
27 Tank assembly WTXWW00002 □□ 1 Including all joints and covers
28 Pipe joint（Bend joint） TSM15695-□□ 2
29 Control transformer TSMU1019-□□ 1
30 Pump outlet connection WTCJH00001□□ 1
31 Pump connection (inlet) TSMJ0491-□□ 1
32 Pump inlet pipe
assembly
WTXWW00001□□ 1
33 Quick plug BD-802042 1
Aluminum washer TSM13365-□□ 1
34 Tank inlet assembly
TSM13400 -□□ 1
35 Tank outlet assembly WTXWW00001□□ 1
36 Overload protection
switch
91-BMR-1.4A 1

17
10 Dimensions
Unit：mm
380 530 70
330
300
432 54

18
11 Circuit diagram
11.1 Coolant circuit diagram
11.2 Electrical circuit diagram
Electrical circuit schematic diagram
Flow signal output diagram and schematic diagram