Heat Exchanger
Sirroco Fan
lndoor unit
EEV
:Heating
:Cooling
Filter
Filter
Th3
Th2
Th1
Refrigerant pipe connection port diameter
Model Gas Liquid
ARNU07GCEA4
Ø12.7(1/2) Ø6.35(1/4)
ARNU07GCEU4
ARNU09GCEA4
Ø12.7(1/2) Ø6.35(1/4)
ARNU09GCEU4
ARNU12GCEA4
Ø12.7(1/2) Ø6.35(1/4)
ARNU12GCEU4
ARNU15GCEA4
Ø12.7(1/2) Ø6.35(1/4)
ARNU15GCEU4
ARNU18GCFA4
Ø12.7(1/2) Ø6.35(1/4)
ARNU18GCFU4
ARNU24GCFA4
Ø15.88(5/8) Ø9.52(3/8)
ARNU24GCFU4
[Unit: mm(inch)]
8
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Floor Standing
Indoor unit
4. Piping Diagrams
Indoor Units
LOC.
Description
PCB Connector (Color)
Th1
Thermistor for room air temperature
CN-ROOM (Yellow)
Th2
Thermistor for pipe in temperature
CN-PIPE_IN (White)
Th3
Thermistor for pipe out temperature
CN-PIPE_OUT (Red)