Haier AD35S2SM3FA - Page 92

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Drainage Test
(
1
)
Conduct a drainage test after completion of the electrical work.
(
2
)
During the trial, make sure that drain ows properly through the piping
and that no water leaks from connections.
(
3
)
In case of a new building, conduct the test before it is furnished with the
ceiling.
(
4
)
Be sure to conduct this test even when the unit is installed in the
heating season.
Proce dures
(
a
)
Supply about 1000 cc of water to the unit through the air outlet using a
feed water pump.
(
b
)
Check the drain while cooling operation.
Before the electrical work has not been completed, connect a convex
joint in the drain pipe connection to provide a water inlet. Then, check
if water leaks from the piping system and that drain ows through
the drain pipe normally.
Installation work for air outlet ducts
Calculate the draft and external static pressure and select the length,
shape and blowout.
• Blowout duct
• 2-spot, 3-spot and 4-spot with φ200 type duct are the standard
specications.
Note (1) Shield the central blowout hole for 2-spot.
(2) Shield the blowout hole around the center or 3-spot.
• Limit the difference in length between spots at less than 2:1.
• Reduce the length of duct as much as possible.
• Reduce the number of bends as much as possible. (Corner R should be
as larger as possible.)
• Use a band. etc. to connect the main unit and the blowout duct ange.
• Conduct the duct installation work before nishing the ceiling.
Connection of suction, exhaust ducts
a.Fresh air inlet
• Inlet can be selected from the side or rear faces depending on the
working conditions.
• Use the rear fresh air inlet when the simultaneous intake and exhaust is
conducted. (Side inlet cannot be used.)
b.Exhaust (Make sure to use also the suction.)
• Use the side exhaust port.