Install Instructions

28
Single Zone High Efciency, Standard, Extended Pipe and Mega Wall Mount Installation Manual
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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 higher at the
indoor unit and lower toward the outdoor area, thereby letting gravity
push any condensation down and out. See Figure 34 for proper
drainage slope. Avoid piping the drain hose as shown in Figure 35.
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 34: 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 35: Correct Slope Angle for Drain Hose