AIR CONDITIONING 1B-13 Always install new O-rings whenever a connection is disassembled. Before connecting any hoses or lines, apply new specified compressor oil to the O-rings. When removing and replacing any parts which re- quire discharging the refrigerant circuit, the opera- tions described in this Section must be performed in the following sequence: 1. Using the ACR 4 (R-134a Refrigerant Recovery/ Recycling/ Recharging/ System) or equivalent to thoroughly discharge and recover the refrigerant. ACR 4 (115V 60Hz): 5-8840-0629-0 (J-39500-A) ACR 4 (220-240V 50/60Hz): 5-8840-0630-0 (J- 39500-220A) ACR 4 (220-240V 50/60Hz Australian model):
5- 8840-06311-0 (J-39500-220ANZ) N1A0062E When connecting the refrigerant line at the block joint, securely insert the projecting portion of the joint portion into the connecting hole on the unit side and secure with a bolt. N1A0061E 2. Remove and replace the defective part. 3. After evacuation, charge the air conditioning sys- tem and check for leaks. Repair of Refrigerant Leaks Refrigerant Line Connections Install new O-rings, if required. When disconnecting or connecting lines, use two wrenches to prevent the con- necting portion from twisting or becoming damaged. N1A0063E Legend 1. O-ring 2. Block joint Apply specified compressor oil to the O-rings prior to connecting. Caution:
Compressor (PAG) oil to be used varies according to compressor model. Be sure to apply specified oil for the model of compressor.