Refrigerant System Diagrams - Trane 22 Series Installer's Manual

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