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(4) Insulate the drain pipe after connecting the drain hose.
7.
Drain Piping
Perform drain piping work and attach the insulations before refrigerant piping work.
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to property damage.
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back into the unit and it may cause the water leakage when the unit operation is stopped.
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unit must be higher than the common pipe. The pipe size of the common drain pipe must be large
enough according to the unit size and number of units.
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the following procedures.
Do not put the drain pipe for the indoor unit into the drainage trench where corrosive gases occur.
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NOTICE
1 (25)
1 (25)
(Drain-Up Length)
Drain Piping (PVC Tube, VP25)
(Field-Supplied)
1/100 Down-Slope
Unit: inch (mm)
Suspension Bracket
(Field-Supplied)
90
o
Elbow Pipe (VP25)
(Field-Supplied)
Lift Piping for Drain-Up
(PVC Tube, VP25)
(Field-Supplied)
Indoor Unit
Drain Pump
8-9/16 (217)
14-1/4 (362)
1 (25)
7-7/16
(189)
1
1
-1/2 (292)
2-5/16
(58)
2-5/16
(58)
1-15/16 (50) to
10-13/16 (275) (Max.)
14-3/4 (375) to 23-5/8 (600) (Max.)
Drain
Pan
Rubber Boss
Drain Hose
(L: 11-13/16 (300))
(Accessory)
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Common
Drain Piping
Connection
1/25 to 1/100 Down-Slope
Common Drain Piping
This drain pipe should be
separated from other pipes.
Incorrect: Upward Slope
Unit
Rising Part
Incorrect
Correct
Indoor Unit
Auxiliary Drain Pan
(Field-Supplied)
To the Atmosphere
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NOTE:
When the relative humidity of inlet or ambient
air exceeds 80%, apply an auxiliary drain pan
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