(1) *
*
Connect the manifold gauge to the service port of 3-way
valve.
Measure the pressure.
(2) *
*
Keep it for 5-10 minutes.
Ensure that the pressure indicated on the gauge is the
same as that of measured during the first time.
9.3.5.
(b) AIR PURGING OF THE PIPING AND INDOOR UNIT
The remaining air in the Refrigeration cycle which contains moisture may cause malfunction on the compressor.
1. Remove the caps from the 2-way and 3-way valves.
2. Remove the service-port cap from the 3-way valves.
3. To open the valve, turn the valve stem of 2-way valve counter-clockwise approx. 90° and hold it there for ten seconds, then
close it.
4. Check gas-leakage of the connecting portion of the pipings.
For the left pipings, refer to item 4(A).
5. To open 2-way valve again, turn the valve stem counter-clockwise until it stops.
4(A). Checking gas leakage for the left piping.
9.3.6.
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 3 x 1.5 mm
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.
9.3.7.
PIPE INSULA TION
1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. 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.
- 33 -
T
er
minals on the indoor unit
1
(L) 2(N)
Color of wires
T
e
r
minals on the outdoor unit
1(L) 2(N)
CS-PC9DKV / CU-PC9DKV / CS-PC12DKV / CU-PC12DKV
