Panasonic CS-UE9JKE / CS-UE12JKE / CU-UE9JKE / CU-UE12JKE Service Manual ▷ View online
21
9.2.4
Connect the Cable to the Indoor Unit
1
The inside and outside connecting cable can be connected without removing the front grille.
2
Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4x
1.5mm
1.5mm
2
flexible cords, type designation 245 IEC 57 or heavier cord.
Ensure the color of wires of outdoor unit and the terminal numbers are the same to the indoor’s
respectively.
Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety
in case of the slipping out of the cord from the anchorage.
Secure the cable onto the board with the holder (clamper).
3
Wire stripping and connecting requirement.
9.3 Outdoor
Unit
9.3.1
Install the Outdoor Unit
• After selecting the best location, start installation according to indoor/outdoor unit installation diagram.
1
Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm).
2
When installing at roof, please consider strong wind and earthquake.
Please fasten the installation stand firmly with bolt or nails.
Please fasten the installation stand firmly with bolt or nails.
9.3.2
Connecting the Piping
9.3.2.1 Connecting the piping to indoor unit
Please make flare after inserting flare nut (locate at joint portion, of tube assembly) onto the copper pipe. (In case of
using long piping)
Connect the piping
• Align the center of piping and sufficiently tighten the flare nut with fingers.
using long piping)
Connect the piping
• Align the center of piping and sufficiently tighten the flare nut with fingers.
• Further tighten the flare nut with torque wrench in specified torque as stated in the table.
A B C D
570 104 13.5 320
570 104 13.5 320
Piping size (Torque)
Model
Gas Liquid
UE9JKE
3/8” (42N•m)
1/4" (18N•m)
UE12JKE
3/8" (42N•m )
1/4" (18N•m)
Caution : Do not over tighten, over tightening cause
gas leakage
gas leakage
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Connecting the piping to outdoor unit
Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the
flare nut (locate at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench to
the specified torque as stated in the table.
9.3.2.2 Cutting and flaring the piping
1
Please cut using pipe cutter and then remove the burrs.
2
Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping
end down to avoid the metal powder entering the pipe.
end down to avoid the metal powder entering the pipe.
3
Please make flare after inserting the flare nut onto the copper pipes.
9.3.3
Evacuation of the equipment
When installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the follwing
procidure.
procidure.
1
Connect a charging hose with a push pin to the low side of a charging set and the service port at the 3-way
valve.
z Be sure to connect the end of charging hose with the push pin to the service port.
z The size of charging hose fitting should be 1/2 UNF, 20 threads.
valve.
z Be sure to connect the end of charging hose with the push pin to the service port.
z The size of charging hose fitting should be 1/2 UNF, 20 threads.
2
Connect the center hose of the charging set to a vacuum pump with check valve, or vacuum pump and
vacuum pump adaptor.
vacuum pump adaptor.
3
Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0
cmHg (0 Mpa) to –76 cmHg (-0.1 Mpa). Then evacuate the air approximately ten minutes.
cmHg (0 Mpa) to –76 cmHg (-0.1 Mpa). Then evacuate the air approximately ten minutes.
4
Close the Low side valve of the charging set and turn off the vacuum pump. Make sure that the needle in the
gauge does not move after approximately five minutes.
gauge does not move after approximately five minutes.
Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGEANT GAS LEAKAG
5
Disconnect the charging horse from the vacuum pump and from the service port of the 3-way valve.
6
Tighten the service port caps of the 3-way valve at a torque of 18 N.m with a torque wrench.
7
Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “OPEN”
using a hexagonal wrench (4mm).
using a hexagonal wrench (4mm).
8
Mount valve caps onto the 2-way and the 3-way valve.
z Be sure to check for gas leakage.
z Be sure to check for gas leakage.
CAUTION:
● If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the following
● If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the following
measure:
● If the leak stops when the piping connections are tightened further, continue working from step 3.
Control board cover
Terminal board
Over 5mm
To indoor unit
Liquid side
Gas side
2-way valve
(Open)
Cap
3-way valve (Open)
Hexagonal wrench
Service port cap
Outdoor Unit
23
● If the leak does not stop when the connections are retightened, repair the location of leak.
● Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant,
● Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant,
it may cause frostbite.
9.3.4
Connect the cable to the Outdoor Unit
1
Remove the control board cover from the unit by loosening the screw.
2
Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4x
1.5mm
1.5mm
2
flexible cord, type designation 245 IEC 57 or heavier cord.
3
Secure the cable onto the control board with the holder (clamper).
4
Attach the control board cover back to the original position with the screw.
5
For wiring stripping and connection requirement, refer to instruction 9.2.4 of indoor unit.
9.3.5 Pipe
Insulation
1
Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation
Diagram. Please warp the insulated piping end to prevent water from going inside the piping.
Diagram. Please warp the insulated piping end to prevent water from going inside the piping.
2
If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by
using POLY-E-FOAM with thickness 6mm or above.
using POLY-E-FOAM with thickness 6mm or above.
24
10. Service
Mode
10.1 Auto OFF/ON Button
1. AUTO OPERATION MODE
Once the Auto OFF/ON button is slightly pressed, the unit will immediately operate in Auto operation. This
operation can be used to operate air conditioner with limited function if remote control is misplaced or
malfunction.
operation can be used to operate air conditioner with limited function if remote control is misplaced or
malfunction.
2. TEST RUN OPERATION( FOR PUMP DOWN/ SERVICING PURPOSE)
Press the button continuously for approximate 5 second and then release. A “beep” sound will be heard to
identify the starting of TEST RUN OPERATION.
identify the starting of TEST RUN OPERATION.
3. HEATING
OPERATION
A) Within 5 minutes after TEST RUN operation starting, press the button again for more than 5 seconds until 2
“beep” sounds are heard, the unit will operate in heating mode.
B) Pressed the button continuously for approximate 8 second and then released. 2 “beep” sounds will be
heard to identify the starting of HEATING operation.
4. DIFFERENT CONTROLLING SETTING.
Press the button continuously for approximate 11 until 3 “beep” sounds are heard and together with the signal
from remote controller, the unit can be changed to different controlling setting.
For transmission code selection method, please refer to “Select Remote Control Transmission Code”
from remote controller, the unit can be changed to different controlling setting.
For transmission code selection method, please refer to “Select Remote Control Transmission Code”
5. INDIVIDUAL COUNTER-ACTION
When the switch is continuously pressed between 16 to 21 seconds, either H14 error detection selection mode or
remote controller’s signal receiving sound can be cancelled or turned on.
remote controller’s signal receiving sound can be cancelled or turned on.
10.2 Select Remote Control Transmission Code
There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor PCB.
The indoor unit will only operate when received signal with same transmission code from remote control. This
could prevent signal interference when there are 2 or more indoor units installed near by together.
could prevent signal interference when there are 2 or more indoor units installed near by together.
To Change the code of remote controller, following table I to join or cut jumper wire on the remote controller and
setting with "Forced operation button". Four codes (A, B, C, D) can be selected. Taking code "B" for example,
the process below should be follow.
the process below should be follow.
1. Press the "Auto OFF/ON” button on the indoor unit for approximate 11 seconds until 3 "Beep’s signal receiving
sounds are heard.
2. Within 5 minutes, gently press the "ERROR RESET" button on the remote control towards the indoor unit.
One "Beep" sound is heard.
3. Within 60 seconds, press any button on the remote control, the frequency of which was set as "B". Setting is
completed after a "Beep" sound is heard. The corresponding signal sent by remote control "B" will be received
by this indoor unit
by this indoor unit
Table 1
Remote control
J02
J03
A(STANDARD) SHORT OPEN
B OPEN
B OPEN
OPEN
C SHORT
SHORT
D OPEN
SHORT
Auto OFF/ON
Button Pressed
Button Pressed
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