12
2. Preparation before installation
1) Position relationship among ceiling opening, unit and hoisting bolt
A
(trim
plate)
B
(ceiling
opening)
C
(Indoor
unit)
E
(D
is
ta
n
c
e b
e
tw
e
e
n h
o
is
ti
n
g b
o
lt
s
)
A (trim plate)
D ( distance between hoisting bolts)
C (indoor unit)
B (ceiling opening)
Refrigerant pipe
Hoisting bolt x 4
Hanging
bracket seat
(
150
)
Ceiling
A
Above 20
Model
Size
A
B
C
D
E
890
890
840
680
780
Unit:
（
mm
）
IECS036N3A
IECS048N3A,
Description:
1
.
The overlapping section of ceiling and trimming plate shall be kept as more than 2.0mm.
2. If necessary, open the opening on the ceiling required for installation. (In case the ceiling is mounted)
a. The dimensions of ceiling opening please refer to installation drawing.
b. Firstly complete all pipelines connecting with indoor unit (refrigerant pipe and drain pipe) and electric
wires (connection pipes of indoor and outdoor units) before installation for ease of connection with the
indoor unit after installation.
c. Reinforce the ceiling from the ceiling opening to keep the ceiling level and avoid vibration of ceiling.
2) Installation of hoisting bolt
1. To support the weight of units, use anchor bolt for existing ceiling; use embedded bolt or other parts
provided on site for the new ceiling.
2. Before continuing the installation, adjust the clearance from the ceiling.
4.Installation of unit
4.Installation of unit
IECS060N3A
