4 Piping Diagram
Figure 4.1: Four-way Cassette piping diagram
motor
T1
heat exchanger
Legend
T1
Indoor ambient temperature sensor
T2
Indoor heat exchanger mid-point temperature sensor
T2B
Indoor heat exchanger outlet temperature sensor
fan
T2B
T2
flare nut
gas side
EXV
flare nut
liquid side
11
