35 
11.2 Indoor Unit 
11.2.1  How to Fix Installation Plate 
The mounting wall shall be strong and solid enough to prevent it from vibration. 
 
 
 
Model 
Dimension 
1  2  3 4 5 6 
BE20***, 
KE25***, BE25***, DE25***, 
KE35***, BE35***, DE35*** 
480 mm  90 mm  425 mm  425 mm  43 mm  95 mm 
 
 
 
Model 
Dimension 
1  2  3 4 5 6 
KE50***, BE50***, DE50***  490 mm  85 mm  439 mm  432 mm  43 mm  95 mm 
 
The center of installation plate should be at more than 1 at right and left of the wall. 
The distance from installation plate edge to ceiling should more than 2. 
From installation plate center to unit’s left side is 3. 
From installation plate center to unit’s right side is 4. 
B  : For left side piping, piping connection for liquid should be about 5 from this line. 
  : For left side piping, piping connection for gas should be about 6 from this line. 
1  Mount the installation plate on the wall with 5 screws or more (at least 5 screws). 
(If mounting the unit on the concrete wall, consider using anchor bolts.) 
o  Always mount the installation plate horizontally by aligning the marking-off line with the thread and using 
a level gauge. 
2  Drill the piping plate hole with ø70 mm hole-core drill. 
o  Line according to the left and right side of the installation plate. 
The meeting point of the extended line is the center of the hole. 
Another method is by putting measuring tape at position as shown in the diagram above. 
The hole center is obtained by measuring the distance namely 128 mm for left and right hole 
respectively. 
o  Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoor 
side. 
3 4
B
A
C
Ceiling
Wall
Wall
Installation 
plate 
1
2
 screw
More than 
1
More than 
1
Measuring Tape
Indoor unit
228 mm
128 mm
228 mm
128 mm
More than 
2
For best strength of 
INDOOR unit installation, 
it is highly recommended 
to locate “
” at 5 position 
as shown. 
PIPE 
HOLE 
CENTER
PIPE 
HOLE 
CENTER
128mm TO 
PIPE HOLE 
CENTER
128mm TO 
PIPE HOLE 
CENTER
3 4
B
A
C
Ceiling
Wall
Wall
Installation 
plate 
1
2 screw
More than 
1
More than 
1
Measuring Tape
Indoor unit
241.5 mm
128 mm
241.5 mm
128 mm
More than 
2
For best strength of 
INDOOR unit installation, 
it is highly recommended 
to locate “
” at 5 position 
as shown. 
PIPE 
HOLE 
CENTER
PIPE 
HOLE 
CENTER
128mm TO 
PIPE HOLE 
CENTER
128mm TO 
PIPE HOLE 
CENTER