Four-Way Valve - Carrier 42QFD048D8S Service Manual

3.6 Four-way valve (for heat pump models)
WARNING: Evacuate the system and confirm that there is no refrigerant left in the system before removing the
four-way valve and the compressor. (For R32 & R290, you should evacuate the system with the vacuum pump; flush the
system with nitrogen; then repeat the two steps before heating up the brazed parts. The operations above should be
implemented by professionals.)
Note: Remove the panel plate, connection of four-way valve on PCB (refer to 3.1 Panel plate and 3.2 Electrical
parts) before disassembling sound blanket.
Procedure
1) Heat up the brazed parts and then detach
the the four-way valve and the pipe (see
CJ_ODU_VALVE_001).
2) Remove the four-way valve assembly with
pliers.
Note: This section is for reference only. Actual unit appearance may vary.
Illustration
 Outdoor Unit Disassembly 11
CJ_ODU_VALVE_001
