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4. Piping Diagrams
Indoor unit
8
_
Ceiling Cassette 1-Way
Indoor Units
Heat Exchanger
C.F.F.
lndoor unit
EEV
Filter
Filter
Th3
Th2
Th1
:Heating
:Cooling
Refrigerant pipe connection port diameter
Model
ARNU07GTU*4
ARNU09GTU*4
ARNU12GTU*4
ARNU18GTT*4
ARNU24GTT*4
Gas
Ø12.7(1/2)
Ø15.88(5/8)
Liquid
Ø6.35(1/4)
Ø9.52(3/8)
[Unit: mm(inch)]
LOC. Description
Th1 Room thermistor
Th2 Pipe in thermistor
Th3 Pipe out thermistor