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4. Piping Diagrams
Indoor unit
10
_
Ceiling Concealed Duct (High Sensible)
Indoor Units
B8 Chassis
Heat Exchanger
Sirocco Fan
Th3
Th1
Th2
Check
Valve
lndoor unit
EEV
:Heating
:Cooling
Filter
Filter
Refrigerant pipe connection port diameter
[Unit: mm(inch)]
MODEL GAS LIQUID
ARNU36GB8A4 Ø19.05(3/4) Ø9.52(3/8)
ARNU42GB8A4 Ø19.05(3/4) Ø9.52(3/8)
ARNU48GB8A4 Ø19.05(3/4) Ø9.52(3/8)
* A : Global line-up, C : Brazil line-up only
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)