Panasonic CU-C18CKV Service Manual

Contents

Panasonic CU-C18CKV Service Manual Manual pdf 56 page image

11.1.6. Gas charging1. Connect the charge hose to the gas charging cylinder.•••• Connect the charge hose which you disconnected fromthe vacuum pump to the valve at the bottom of thecylinder.2. Purge the air from the charge hose.•••• Open the valve at the bottom of the cylinder and pressthe check valve on the charge set to purge the air. (Becareful of the liquid refrigerant). The procedure is thesame if using a gas cylinder.3. Open the valve (Low side) on the charge set and chargethe system with liquid refrigerant.•••• If the system cannot be charged with the specifiedamount of refrigerant, it can be charged with a little at atime (approximately 150g each time) while operating theair conditioner in the cooling cycle; however, one time isnot sufficient, wait approximately 1 minute and thenrepeat the procedure. (pumping down-pin)4. Immediately disconnect the charge hose from the3-way valve’s service port.•••• Stopping partway will allow the refrigerant to bedischarged.•••• If the system has been charged with liquid refrigerantwhile operating the air conditioner, turn off the airconditioner before disconnecting the hose.5. Mount the valve caps and the service port caps.•••• Use a torque wrench to tighten the service port nut.•••• Be sure to check for gas leakage.(After Evacuation)Procedure:56CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV