32
Single Zone
Art Cool Premier W
all Mounted Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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REFRIGERANT PIPING CONNECTIONS
Drain Hose
Drain Hose Guidelines
Refer to the diagrams below and follow proper installation and the running of the drain hose along the pipe installation line to avoid leakage. Once
drain hose is set in place, always follow with evacuation and leakage testing of all piping to be sure all piping is properly sealed. Re-check and retest
as necessary.
Drain hose is routed from the indoor unit through the structure
(wall) to the outdoor. It should slope at an angle where it is high-
er at the indoor unit and lower toward the outdoor area, thereby
letting gravity push any condensation down and out. See Figure
35 for proper drainage slope. Avoid piping the drain hose as
shown in Figure 36. These methods are incorrect and can cause
leakage at the indoor unit site.
Downward slope
to outdoor
for proper drainage
Indoor
Unit
Piping
Correct Drainage Slope
Figure 35: Correct Slope Angle for Drain Hose
Upward slope
to outdoor
can cause indoor
leaks!
Water
leakage
Accumulated
drain water
Air
Waving
Water
leakage
Indoor Unit
Indoor Unit
Incorrect Drainage Setup
Tip of drain hose
dipped in water
Water
leakage
Ditch
Less than
2 Inch gap from ground
Indoor Unit
Drain Hose
Figure 36: Correct Slope Angle for Drain Hose
