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Installation Procedures
(c) Please use rigid PVC adhesive for connection of other pipes and ensure there
is no leakage.
(d) Drain hose must be wrapped with insulation sleeve and tightened with a strap to
prevent air leakage from producing condensate.
(e) When connecting the drain hose, do not pull on it to avoid the pipe connections
from getting loose or disconnected. Drain hose should not be pulled out laterally for
more than 8in(200mm) and should be supported every 31-39in(0.8- 1.0m) to avoid bending.
(f) The end of drain hose should be more than 2in(50mm) away from the ground or the bottom of drainage tank. It should
not be put in water. To directly drain condensate into drainage ditch, the drain hose must be U-shaped to avoid smell from
entering through the hose into room.
Testing Drainage System
Before the test, ensure the drain hose is clear and all connections are tightly sealed.
Then perform the drainage test as follows:
1. Add about 0.132gal (500ml) of water into the water pan through water injection hole.
2. Switch on the power and operate the unit in cooling mode. Check that the water outlet drains water normally and that
there are no leakages at the connections. After the drainage test is complete, replace the water injection hole plug.
3. In the condition of new house, test the drainage system before fitting up the ceiling.
4. Even if it is installed in the season needed to heating, the testing should also be performed.
5. Installation of Air Return & Air Exhaust Pipes
For the choice and installation of air return port, air return pipe, air exhaust port and exhaust pipe, please consult service
personnel of Haier company. Calculate the design chart and exterior static pressure, and select the exhaust pipe with
appropriate length and shapes.
The length difference between pipes should be limited to be less than 2:1;
Make the piping as short as possible;
Keep the min. elbow quantity;
Wind the heat insulating material around the flange between the main unit and the exhaust
pipe for heat insulation and sealing. Install the piping before fitting up the ceiling.
At lea
duct is needed at air inlet and air outlet.
st 6.6 feet air
Flexible connection is needed between indoor units and air duct.
ESP should be lower than 0.8 IWC.
6. Cautions in Installation of Air Return Duct & Exhaust Duct
It is recommended to use ducting, which can be
anti-condensation and absorb sound. (purchased at local shops)
Heat insulation should be made for the ducting.
The special exhaust port should be arranged at the place where the air is distributed evenly.
An access panel should be added to the ceiling below the indoor unit for serviceability.
main unit of air
conditioner
ceiling
suface
special exhaust
exhaust pipe
port (purchased at
(purchased
local shop)
at local
shop)
air return
pipe
(purchase
d at local
shop)
special air return
pipe (purchased at
access panel
local shop) with air
cleaner
9
ensure the biggest height difference
(about 3 7/8in)
gradient of 1/100 or over
special exhaust port
positioning with bolt
air
air
supply
duct
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