3
3. Installation diagram
Fig. 3-1
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.
■
SUZ-SA71VA
Drainage hole
(
W
42)
Air inlet
Air outlet
417.5
50
360
500
175
Air inlet
330
40
2-10 mm × 21 mm slot
81
840
4. Refrigerant piping work
Fig. 4-2
Fig. 4-1
(C)
(B)
(A)
A
Indoor unit
B
Outdoor unit
A
Indoor unit
B
Outdoor unit
ø9.5
ø15.88
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.
Models
(A) Pipe length
(one way)
(B) Height
difference
(C) Number of
bends (one way)
SUZ-SA71
Max. 30 m
Max. 30 m
Max. of 10
• 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.)
Pipe length
Up to 7 m
No additional charge is required.
Exceeding 7 m
Additional charge is required.
(Refer to the table below.)
Refrigerant
to be added
SUZ-SA71
55 g × (refrigerant piping length (m) -7)
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.
Model
Pipe
Outside diameter Min. wall
thickness
Insulation
thickness
Insulation
material
mm
inch
SUZ-SA71
For liquid
9.5
3/8
0.8 mm
8 mm
Heat resisting
foam plastic
0.045 specific
gravity
For gas
15.88
5/8
1.0 mm
8 mm
() 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.
(mm)
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