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COMMISSIONING
CHECk THE LEAkAGE
Check all the joints with the leak detector or soap water . (See Chart 40 as
a reference illustration)
Note:
A --> Lo-stop valve
B --> Hi-stop valve
C,D --> Joints of the connecting pipe to the indoor unit .
CONNECT THE DRAIN PIPE
1.
Install indoor unit drain pipe
The outlet has PTI screw bread, Please use sealing materials and pipe sheath (fitting) when connecting PVC pipes.
Caution
•
The drain pipe of indoor unit must be heat insulated, or it will condense dew, as well as the connections of the indoor unit .
•
Hard PVC binder must be used for pipe connection, and make sure there is no leakage .
•
With the connection part to the indoor unit, please be noted not to impose pressure on the side of indoor unit pipes .
•
When the declivity of the drain pipe downwards is over /00, there should not be any winding .
•
The total length of the drain pipe when pulled out traversely shall not exceed 20m, when the pipe is over long, a prop stand
must be installed to prevent winding .
•
Refer to the figures on the right for the installation of the pipes.
1,5 m ~ 2 m
Insulating
downward declivity
material
lower than /00
Chart 4
Water drainage
I.
Gradient and Supporting
1.
Keep the drainpipe sloping downwards at a gradient of at least /00 . Keep the drainpipe as short as possible and eliminate
the air bubble .
2.
The horizontal drainpipe should be short . When the pipe is too long, a prop stand must be installed to keep the gradient of /00
and prevent bending. Refer to the following table for the specification of the prop stand.
Hard PVC pipe
• 4 •
Bend
S shape
Diameter
25~40 mm
Check-point of indoor unit
Check-point of outdoor unit
Chart 40
Put as deep as possible
(about 0 cm)
downward declivity
lower than /00
VP30
Chart 42
Distance between the prop stands
1,5~2 m
C
D
A
B
DUCTAIR II - 0808-E
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