76 | STANDARD
MULTI V Wall-Mounted Indoor Unit Engineering Manual
Due to our policy of continuous product innovation, some specications may change without notication.
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STANDARD WALL-MOUNTED
Refrigerant Flow Diagram
Figure 27: SJ, SK, and SV Frame Piping Diagram.
SJ, SK, SV Frames
Table 38: SJ, SK, and SV Frame Refrigerant Pipe Connection Port Diameters.
Table 39: SJ, SK, and SV Frame Thermistors.
Model Liquid (inch) Vapor (inch)
SJ Frames
ARNU053SJA4
1/4 Flare 1/2 Flare
ARNU073SJA4
ARNU093SJA4
ARNU123SJA4
ARNU153SJA4
SK Frames
ARNU183SKA4 1/4 Flare 1/2 Flare
ARNU243SKA4 3/8 Flare 5/8 Flare
SV Frames
ARNU303SVA4
3/8 Flare 5/8 Flare
ARNU363SVA4
Heat Exchanger
C.F.F.
lndoor unit
EEV
Filter
Filter
TH1
TH2
Heating
Cooling
Thermistor Description
TH1 Return air and pipe in thermistor
TH2 Pipe out thermistor
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