Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook page 81

[ III Outdoor Unit / BC Controller Components ]
(2) Front view of a refrigerant circuit
High-pressure
sensor
High-pressure
check joint *1
4-way valve
(21S4a)
4-way valve
(21S4b)
Gas-side
ball valve *1
Liquid-side ball valve *1
*1 The diameter of this charge plug is 5/16".
Use the adapter that is supplied with the product if using tools designed primarily for use with 1/4"-diameter materials.
(3) Rear view of a refrigerant circuit
Accumulator
Fusible plug
Pressure switch
Low-pressure Linear expansion
sensor valve (LEV1)
Fusible plug
- 72 -
Oil separator Oil separator Inverter compressor
(No.1) (No.2) (No.1)
Low-pressure sensor
Low-pressure
check joint *1
2-way valve
(SV5b)
Accumulator
Non-inverter
compressorr
(No.2)
Oil balance pipe