Owner`s manual

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Please refer to the install cardboard about the dimension of ceiling opening.
The central mark of the ceiling opening is marked on the install cardboard.
Install the install cardboard on the unit by bolt (3 piece), and fix the angle of the drainage pipe at
the outlet vent by bolt.
3. Adjust the unit to the suitable install place.
4. Check if the unit is horizontal.
☆ Inner drainage pump and bobber switch are included in the indoor unit, check if 4 angle of every
unit are horizontal by water lever. (If the unit is slant toward the opposite of the coagulate water
flow, there may be malfunction of the bobber switch and lead water drop.)
5. Backout the gasket anchor board used to prevent gasket break off and tighten the nut on it.
6. Backout the install cardboard.
Note！
● Please do tighten the nuts and bolts to prevent air conditioner break off.
F. Connect the refrigerant pipe
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Selection of Connecting Pipe
Item
Model
Size of Fitting Pipe
( I n c h )
Max. Pipe
Length (m)
Max. Height
D i f f e r e n c e
b e t w e e n
I n d o o r U n i t
and Outdoor
U n i t ( m )
Amount of Additional
Refrigerant to Be
Filled(For Extra
Length of Pipe)
Gas Pipe
Liquid Pipe
GUHN18NK3AO
1 /2
1/4
20
15
30g/m
GUHN24NK3AO
5 /8
3 /8
30
15
60g/m
GUHN36NM3AO
GUHN48NM3AO
3 /4
1/2
50
30
120g/m