Trane 22 Series - Refrigerant System Diagrams

Refrigerant System Diagram 18K, 21K & 24K Units
outdoor
indoor
D1
C
1
B1
A1
filter
A heat exchanger
gas -liquid separator
inverter compressor
discharge silencer
discharge temperature
sensor
SP
4-way valve
outdoor heat exchanger
fan
high pressure switch
B heat exchanger
C heat exchanger
D heat exchanger
filter
filter
filter
filter
Note: Not available for 18K
model
C2
C3
D3
D2
B3
B2
A2
A3
Note: Not available for 18K model
26
22 Series Multi-Zone