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8
When an obstruction is present on the air inlet side
(2)
4
Z
12 or more
NOTE
Only two outdoor units can be stacked.
1.
About 4 in. is required as the drain piping size for the upper
2.
outdoor unit.
Close the area Z (gap between the upper outdoor unit and
3.
the lower outdoor unit) so that the outlet air does not by-
pass there.
(E) When outdoor units are installed in rows (on the roof-
top, etc.)
When one outdoor unit is installed in each row
(1)
4 or more
8 or more
80 or more
40 or more
When two or more outdoor units are installed side
(2)
by side
A
L
60 or more
24 or more
120 or more
H
The dimensional relationship between H, L and A is as
shown in the table below.
L
A
L
≤
H
0
<
L
≤
1/2H
10
1/2H
<
L
≤
H
12
H
<
L
Installation is not allowed.
CAUTIONS ON INSTALLATION
5.
Before installation, confi rm the strength and levelness of the
•
foundation so that vibrations and noise are not generated.
Fix the outdoor unit securely on a rigid base with foundation
•
bolts as shown in the foundation drawing below.
(Prepare 4 sets of commercially available M12-type or
equivalent foundation bolts, nuts and washers.)
Use resin washers to prevent the paint from being scratched
•
off and rusting.
The foundation bolts should be protruded by 15/16 in.
•
(Refer to fi gure)
13/16
Resin
washer
〈〈
Drain treatment
〉〉
In a location where drain from the outdoor unit may cause
•
troubles (for example, where drainage may splash on gen-
eral passersby), perform the drain piping work using the
drain plug (optional).
For drain treatment, space of at least 4 in. is required under
•
the bottom frame of the outdoor unit.
In the drain piping work, make sure that drainage is dis-
•
charged securely.
(When routing the piping downward, check for water leak-
age.)
5 1/2
1 7/8
5 1/2
24 3/8
Air outlet side
(13 5/8-13 7/8)
13 3/4
11 3/8
8 5/8
4 5/8
Bottom view
(unit: inch)
Drain hole
16 5/8
24 1/8
REFRIGERANT PIPING WORK
6.
CAUTION
<To piping technician>
Make sure to open the stop valves after fi nishing the
•
piping work. (Refer to the table shown in “ 6-7 Additional
refrigerant charge”.)
(Operating the air conditioner with the stop valve shut
may damage the compressor.)
Use R410A to add refrigerant. (The R410A refrigerant
•
cylinder has a pink stripe painted around it.)
All fi eld piping must be installed by a licensed refrigeration
technician and must comply with relevant local and national
regulations.
BRAZING REFRIGERANT PIPING
•
Do not use fl ux when brazing copper-to copper refrigerant
piping.
(Particularly for the HFC refrigerant piping) Therefore, use
the phosphor copper brazing fi ller metal (BCuP) which does
not require fl ux.
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Summary of Contents for SkyAir RZQ18PVJU
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