DOWNLOAD Panasonic CS-E24JKES / CU-E24JKE / CS-E28JKES / CU-E28JKE Service Manual ↓ Size: 8.53 MB | Pages: 108 in PDF or view online for FREE

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• Ensure the colour of wires of outdoor unit and the terminal Nos. are the same to the indoor’s respectively.
• Earth wire shall be Yellow/Green (Y/G) in colour and longer than the other AC wires for safety reason.

1. Please cut using pipe cutter and then remove the burrs.
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.

3. Please make flare after inserting the flare nut onto the copper pipes.

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• 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.

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.

• Further tighten the flare nut with torque wrench in specified

torque as stated in the table.

Connecting the Piping to Outdoor
Decide piping length and then cut by using pipe cutter. Remove
burrs from cut edge. Make flare after inserting the flare nut
(located 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.

Model

A

B

C

D

E7***

570 mm

105 mm

18.5 mm

320 mm

E9***, XE9***

E12***, XE12***

E15***-1

E15***, E15***-3

612.5 mm

131 mm

19 mm

383 mm

E18***, XE18***

E21***

613 mm

131 mm

16 mm

360.5 mm

E24***, XE24***

E28***

Do not over tighten, over tightening cause gas leakage.

Piping size

Torque

1/4” (6.35 mm)

[18 N

l

m (1.8 kgf.m)]

3/8” (9.52 mm)

[42 N

l

m (4.3 kgf.m)]

1/2” (12.7 mm)

[55 N

l

m (5.6 kgf.m)]

5/8” (15.88 mm)

[65 N

l

m (6.6 kgf.m)]

3/4” (19.05 mm)

[100 N

l

m (10.2 kgf.m)]

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Connecting the Piping to Outdoor Multi
Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (located
at valve) onto the copper pipe.
Align center of piping to value and then tighten with torque wrench to the specified torque as stated in the table. 

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WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the
following procedure.

1. Connect a charging hose with a push pin to the Low 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.
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 TAKE THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT 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 a torque of 18 N

l

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.

1. Remove the control board cover from the unit by

loosening the screw.

2. Cable connection to the power supply through Isolating

Devices (Disconnecting means).

• Connect the approved polychloroprene sheathed power

supply cord 3 

u 1.5 mm

2

(3/4 ~ 1.75HP), 3 

u 2.5 mm

2

(2.0 ~ 2.5HP) or 3 

u 4.0 mm

2

(3.0HP) type designation

245 IEC 57 or heavier cord to the terminal board, and
connect the others end of the cord to Isolating Devices
(Disconnecting means).

3. Connecting cable between indoor unit and outdoor unit

shall be approved polychloroprene sheathed 4 

u 1.5 mm

2

flexible cord, type designation 245 IEC 57 or heavier
cord.

4. Connect the power supply cord and connecting cable

between indoor unit and outdoor unit according to the
diagram below.

• If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 

 above take the following measure: 

- If the leak stops when the piping connections are tightened further, continue working from step 

.

- 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.