Panasonic CS-ME7CKPG Service Manual page 72

CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG
4
EVACUATION OF THE EQUIPMENT
WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR
INSIDETHE INDOOR UNIT AND PIPES in the following procedure.
Indoor unit
Indoor unit
OPEN
Vacuum
pump
Vacuum pump adaptor
CAUTION
• If gauge needle does not move from 0 cmHg (0 MPa) to –76 cmHg (–0.1 MPa), in step
• 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.
5
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 4 x 1.5 mm
designation 245 IEC 57(H05RN-F) or heavier cord.
Terminals on the indoor unit
Color of wires
Terminals on the outdoor unit
3. Secure the cable onto the control board with the holder (clamper).
4. Attach the control board cover in its original position with the screw.
DISPOSAL OF OUTDOOR UNIT DRAIN WATER
• If a drain elbow is used, the unit should be placed
on a stand which is taller than 3 cm.
• If the unit is used in an area where temperature
falls below 0 C for 2 or 3 days in succession, it is
recommended not to use a drain elbow, for the
drain water freezes and the fan will not rotate.
CHECK THE DRAINAGE
• Open front panel and remove air filters.
(Drainage checking can be carried out without
removing the front grille.)
• Pour a glass of water into the drain tray-styrofoam.
• Ensure that water flows out from drain hose of the
indoor unit.
EVALUATION OF THE PERFORMANCE
• Operate the unit at cooling operation mode for
fifteen minutes or more.
• Measure the temperature of the intake and
discharge air.
• Ensure the difference between the intake
temperature and the discharge is more than 8 C.
Liquid side
Outdoor unit
THREE-WAY VALVE
Gas side
THREE-WAY VALVE
Liquid side
THREE-WAY VALVE
CLOSED
Gas side
THREE-WAY VALVE
CLOSED
Lo Hi
CLOSE
Control board
2
flexible cord, type
1 2 3
15A
1 2 3
Breaker
Power supply cord
Drain elbow 9
Install the hose at an angle so that the
water smoothly flows out.
Discharge air
(FOR EUROPE & OCEANIA DESTINATION)
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 valves.
• Be sure to connect the end of the charging hose with the push pin to the service port.
2. Connect the centre hose of the charging set to a vacuum pump with check valve, or vacuum pump
and 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. 1MPa). Then evacuate the air for approximately 15
minutes.
4. Close the Low and High side valves of the charging set and turn off the vacuum pump.Make sure
that the needle in the gauge does not move after approximately 5 minutes.
Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS
LEAKAGE.
5. Disconnect the charging hose from the vacuum pump and from the servise port of the 3-way
valves.
6. Tighten the service port caps of the 3-way valves at a torque of 18 N·m with a torque wrench.
7. Remove the valve caps of the both 3-way valves.
Position both of the valves to OPEN using a hexagonal wrench(4mm).
8. Mount valve caps onto the both 3-way valves.
• Be sure to check for gas leakages.
above take the following measure:
3
.
3
6
1. Please carry out insulation at pipe connection portion as
Control board cover
mentioned in Indoor/Outdoor Unit Installation Diagram.
Control board
Please wrap 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 6 mm or above.
Power Indoor Indoor
supply unit A unit B
cord
CHECK ITEMS
Is there any gas leakage at flare nut
connections?
Has the heat insulation been carried out
at flare nut connection?
Hose
Is the connecting cable being fixed to
terminal board firmly?
Is the connecting cable being clamped
firmly?
Is the drainage ok?
(Refer to "Check the drainage" section)
Drain tray-
styrofoam
Is the earth wire connection properly
done?
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Web Site : http://www.panasonic.co.jp/global/
72
PIPE INSULATION
Is the indoor unit properly hooked
to the installation plate?
Is the power supply voltage
complied with rated value?
Is there any abnormal sound?
Is the cooling operation normal?
Is the thermostat operation
normal?
Is the remote control's LCD
operation normal?
Is the air purifying filter installed?
ENGLISH
F612314
PRINTED IN JAPAN