37
Outdoor Unit Installation Guidelines
Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the installation
guidelines below.
For any of the below installation patterns, the wall height on the exhaust side should be 47-1/4" (1200 mm) or
less.
10.2.2 Install The Outdoor Unit
After selecting the best location, start installation
to Indoor/Outdoor Unit Installation Diagram.
1. Firmly attach the unit horizontally to concrete
or a rigid frame with bolts and nuts (ø13/32"
(ø10 mm)).
2. When installing on a roof, please consider
strong winds and earthquakes.
Please fasten the installation stand firmly with
bolts or nails.
Model
A
B
C
D
CU-4E24***
24-13/32"
(620 mm)
6-11/16"
(170 mm)
25/32"
(20 mm)
14-31/32"
(380.5 mm)
10.2.3 Connect The Piping
Remove the cabinet side plate (metal) from the
unit by loosening six screws.
Connecting The Piping To Outdoor Unit
Decide piping length and then cut by using pipe cutter.
Remove burrs from cut edge. Make flare after
inserting the flare nut (locate at valve) onto the copper
pipe.
Align center of piping to valves and then tighten with
torque wrench to the specified torque as stated in the
table.
Do not over tighten, over tightening may cause gas leakage
Piping size
Torque
1/4" [6.35 mm]
13.3 Ibf•ft [18 N•m (1.8 kgf•m)]
3/8" [9.52 mm]
31.0 Ibf•ft [42 N•m (4.3 kgf•m)]
1/2" [12.7 mm]
40.6 Ibf•ft [55 N•m (5.6 kgf•m)]
5/8" [15.88 mm]
47.9 Ibf•ft [65 N•m (6.6 kgf•m)]
3/4" [19.05 mm]
73.8 Ibf•ft [100 N•m (10.2 kgf•m)]
Gas Leak Checking
Pressure test to system to 400 PSIG with dry nitrogen,
in stages.
Thoroughly leak check the system.
If the pressure holds, release the nitrogen and
proceed to section 10.2.4.
Wall facing one side
More than 3
15
/
16
" (100)
w
e
i
v
p
o
T
w
e
i
v
e
d
i
S
47
1
/
4
" (1200)
or less
More than
39
3
/
8
" (1000)
More than
39
3
/
8
" (1000)
More than
3
15
/
16
" (100)
More than
3
15
/
16
" (100)
More
than
3
15
/
16
"
(100)
More than
3
15
/
16
" (100)
More than
39
3
/
8
" (1000)
More than
11
13
/
16
" (300)
Walls facing two side
Walls facing three side
Top view
Unit : inch (mm)
A
B
C
D
A
B
C
D
Torque Wrench for Flare Nut
and Pipe Size Expander
Packing
Pipe Size
Expander
Flare Nut
(Connection Pipe)
Screw
Screw
Cabinet side plate
Flare Nut
Torque Wrench for
Flare Nut
(Connection Pipe)
(Connection Pipe)
Applicable to
Liquid and Gas side of
CS-ME5***,
CS-ME7***,
CS-E9***,
CS-E12***,
CS-E18***
Liquid side of
CS-E24***
Applicable to
Gas side of
CS-E24***
Torque Wrench for
Flare Nut
Flare Nut
Female side
Female side
Male side
Male side
