Panasonic CS-XE9EKE / CU-XE9EKE / CS-XE12EKE / CU-XE12EKE Service Manual ▷ View online
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For the embedded piping
1. Pull out the piping and drain hose
2. Install the Indoor Unit
3. Secure the Indoor Unit
4. Insert the connecting cable
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5. Treating methods of the end of the ventilation hose
(This can be used for left rear piping & left bottom
piping also.)
piping also.)
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10.2.5.
Connect The Cable To The Indoor
Unit
Unit
1. The inside and outside connecting cable can be con-
nected without removing the front grille.
2. Connecting cable between indoor unit and outdoor unit
shall be approved polychloroprene sheathed 5 × 1.5 mm
2
flexible cord, type designation 245 IEC 57 or heavier
cord.
cord.
• Ensure the color of wires of outdoor unit and the terminal
Nos. 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.
the slipping out of the cord from the anchorage.
• Secure the cable onto the control board with the holder
(clamper).
10.3. Outdoor Unit
10.3.1.
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 horizon-
tally 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.
with bolt or nails.
10.3.2.
Connecting The Piping
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
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.
• Further tighten the flare nut with torque wrench in specified
torque as stated in the table.
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.
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.
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 is not
2. Remove the burrs by using reamer. If burrs is 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.
Model
Piping size (Torque)
Gas
Liquid
XE9EKE
3/8” [42 N•m]
1/4” [18 N•m]
XE12EKE
1/2” [55 N•m]
1/4” [18 N•m]
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10.3.3.
Evacuation Of The Equipment (For Europe & Oceania Destination)
WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the
following procedure.
following procedure.
1. Connect a charging hose with a push pin to the Low and High side of a charging set and the service port of the 3-way valve.
• Be sure to connect the end of the charging hose with the push pin to the service port.
2. Connect the center hose of the charging set to a vacuum pump with check valve, or vacuum pump and vacuum pump adap-
tor.
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.
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. Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIG-
ERANT GAS LEAKAGE.
ERANT GAS LEAKAGE.
5. Disconnect the charging hose 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 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
6. Tighten the service port caps of the 3-way valve at 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 (4 mm).
8. Mount valve caps onto the 2-way valve and the 3-way valve.
• 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 measure:
• If the leak stops when the piping connections are tightened further, continue working from step 3.
• 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, it may cause frostbite.
• If the leak stops when the piping connections are tightened further, continue working from step 3.
• 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, it may cause frostbite.
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