Indoor unit installation YKHC-12-18
(1) Install the main body
A. The existing ceiling (to be horizontal)
a. Please cut a quadrangular hole of 600X600mm in the ceiling according to the shape of the installation paper
board.
The center of the hole should be at the same position of that of the air conditioner body.
Determine the lengths and outlets of the connecting pipe, drain pipe and cables.
To balance the ceiling and to avoid vibration, please enforce the ceiling when necessary.
b. Please select the position of installation hooks according to the hook holes on the installation board.
Drill four holes of 12mm, 50~55mm deep at the selected positions on the ceiling. Then embed the
expansible hooks(fittings).
Face the concave side of the installation hooks toward the expansible hooks. Determine the length of the
installation hooks from the height of ceiling, then cut off the unnecessary part.
If the ceiling is extremely high, please determine the length of the installation hook according to facts.
Cut the installation hook open in the middle position, then use appropriate length of reinforcing rod (Ø12) to
weld together.
The length could be calculated from Chart5:
Length=210+L(in general, L is half of the whole length of the installation hook)
c. Please adjust the hexangular nuts on the four installation hooks evenly, to ensure the balance of the body.
Use the transparent hose filled with water to check the lever of the main body from the four sides or
diagonal line direction, the lever indicator also can check the lever from four sides of the main body .(Refer to
chart 6)
If the drainpipe is awry, leakage will be caused by the malfunction of the water-level switch.
Adjust the position to ensure the gaps between the body and the four sides of ceiling are even.
The body's lower part should sink into the ceiling for 10~12mm (Refer to chart5).
Locate the air conditioner firmly by wrenching the nuts after having adjusted the body's position well.
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