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3. Installation diagram
■
SUZ-SA71VA
417.5
Air inlet
Air inlet
175
Fig. 3-1
4. Refrigerant piping work
(B)
(C)
Fig. 4-1
ø15.88
Fig. 4-2
(mm)
81
840
Drainage hole
( 42)
40
Air outlet
500
2-10 mm × 21 mm slot
(A)
Indoor unit
A
Outdoor unit
B
Indoor unit
A
Outdoor unit
B
ø9.5
3.1. Outdoor unit (Fig. 3-1)
Ventilation and service space
■
SUZ-SA71VA
A 100 mm or more
B 350 mm or more
C 500 mm or more
When the piping is to be attached to a wall containing metals (tin plated) or metal
netting, use a chemically treated wooden piece 0 mm or thicker between the wall
and the piping or wrap 7 to 8 turns of insulation vinyl tape around the piping.
Units should be installed by licensed contractor accordingly to local code re-
quirement.
Note:
When operating the air conditioner in low outside temperature, be sure to fol-
low the instructions described below.
• Never install the outdoor unit in a place where its air inlet/outlet side may be ex-
posed directly to wind.
• To prevent exposure to wind, install the outdoor unit with its air inlet side facing
the wall.
• To prevent exposure to wind, it is recommended to install a baffle board on the
air outlet side of the outdoor unit.
4.1. Refrigerant pipe (Fig. 4-1)
► Check that the difference between the heights of the indoor and outdoor
units, the length of refrigerant pipe, and the number of bends in the pipe
are within the limits shown below.
(A) Pipe length
Models
(one way)
SUZ-SA71
Max. 30 m
• Height difference limitations are binding regardless of which unit, indoor or out-
door, is positioned higher.
• Refrigerant adjustment ... If pipe length exceeds 7 m, additional refrigerant
(R410A) charge is required.
(The outdoor unit is charged with refrigerant for pipe length up to 7 m.)
Up to 7 m
Pipe length
Exceeding 7 m
Refrigerant
SUZ-SA71
to be added
Piping preparation
• Refrigerant pipes of 3, 5, 7, 10 and 15 m are available as optional items.
(1) Table below shows the specifications of pipes commercially available.
Outside diameter
Model
Pipe
mm
For liquid
9.5
SUZ-SA71
For gas
15.88
() Ensure that the refrigerant pipes are well insulated to prevent condensation.
(3) Refrigerant pipe bending radius must be 100 mm or more.
Caution:
Using careful insulation of specified thickness. Excessive thickness prevents
storage behind the indoor unit and smaller thickness causes dew drippage.
(B) Height
(C) Number of
difference
bends (one way)
Max. 30 m
Max. of 10
No additional charge is required.
Additional charge is required.
(Refer to the table below.)
55 g × (refrigerant piping length (m) -7)
Min. wall
Insulation
Insulation
thickness
thickness
material
inch
Heat resisting
3/8
0.8 mm
8 mm
foam plastic
0.045 specific
5/8
1.0 mm
8 mm
gravity
3
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