(1) **Connect the manifold gauge to the service port of 3-wayvalve.Measure the pressure.(2) **Keep it for 5-10 minutes.Ensure that the pressure indicated on the gauge is thesame as that of measured during the first time.10.3.5. (b) AIR PURGING OF THE PIPING AND INDOOR UNITThe 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, thenclose 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.10.3.6. CONNECT THE CABLE TO THE OUTDOOR UNIT1. 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 (C7CK, C9CK, C12CK,V7CK, V9CK, V12CK) or 5 (A7CK, A9CK, A12CK, W7CK, W9CK, W12CK) × 1.5 mm 2 flexible cord, type designation 245 IEC57 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.10.3.7. PIPE INSULATION1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrapthe 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 FOAMwith thickness 6 mm or above.52CS-W7CKP CU-W7CKP5 / CS-W9CKP CU-W9CKP5 / CS-W12CKP CU-W12CKP5Panasonic ilmalämpöpumput korjaa ja huoltaa pääkaupunkiseudulla: Jäähdytinpalvelu RefGroup Oywww.ilmalämpöpumput.com