Where the relative humidity of air inlet or
ambient air exceeds 80%, an auxiliary water pan
shall be fabricated at installation site and placed
under the indoor unit, as shown in Fig. 6.2.
Indoor Unit
Water Outlet
Condensate Pan
Field-Supplied
Fig. 6.2 Auxiliary Water Pan
a.Turn on the power.
b.Fill the water pan with 2L or 2.5L of water.
c. Check and ensure the water flows without
obstruction and no leakage exists. Pour 2L of
water if no water flows out of pipe end.
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(1) The drain pipe installed shall slope down; otherwise,
the condensate may flow back and leak into the room
when the indoor unit is turned off.
(2) The drain pipe shall not be connected with sewage
pipe or other drain pipes.
(3) Where the main drain is connected to other indoor
units, each indoor unit must be higher than the main.
Select drain pipes in ample size depending on the
refrigerating capacity and quantity of indoor units.
(4) Check if water flows without obstruction following
the procedure shown below after the proper
connection of wires and drain pipes.
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(1) The position of the drain pipe
connection is shown
.
(2) Prepare a polyvinyl chloride pipe with a
32mm outer diameter.
(3) Fasten the tubing to the drain hose with the
adhesive agent and the factory-supplied
clamp. The drain pipe must be performed
with a down-slope pitch of 1/25 to 1/100.
perform the drain piping work as shown in the figure above.
(4) Insulate the drain pipe after connecting the drain hose.
The total length a+b+c shall be ≤3.6ft
.
(1.1m).
In case of lifting the drain pipe at the outlet part,
Hose Clamp (Accessory)
Packing(Accessory)
● Inject water via air outlet.
Insert the end of hose between
heat exchanger and water pan.
Water Pan
Water Pump
Water (2L or 2.5L)
separating from other pipes.
Fig. 6.1 Drain Pipe
a (11-13/16(300) max.)
Hose Clamp
(Accessory)
c (1-31/32(50) max.)
3332(
850
)
Max.
1/25 to 1/100
Down-Slope
Drain Hose (Accessory)
Drain Pipe
Connection
Hose Clamp
(Accessory)
Drain Hose
(Accessory)
Vinyl Chloride VP25
(Field Supplied)
Unit
Upward Slope
Rising Part
Drain Pipe
Connection
3-15/16(
100
) Min.
1/25 to 1/100Down-Slope
Common Drain Pipe
This drain pipe shall be
6
7-41/64(
19
4)
Connected to Drain Pipe
● Inject water via access opening.
Insert the end of hose between
heat exchanger and water pan.
Access Opening
Water Pump
Water (2L or 2.5L)
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t
in.(mm)
t
in.(mm)
3-15/64(82)
2-11/64(55)
