7
English
(E) When outdoor units are installed in rows (on the rooftop, etc.)
(1)When one outdoor unit is installed in each row
(2)When two or more outdoor units are installed side by side
The dimensional relationship between H, L and A is as shown in the
table below.
5.
CAUTIONS ON INSTALLATION
• Before installation, confirm the strength and levelness of the founda-
tion 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 figure)
〈〈
Drain treatment
〉〉
• In a location where drain from the outdoor unit may cause troubles
(for example, where drainage may splash on general passersby),
perform the drain piping work using the drain plug (optional).
• For drain treatment, space of at least 4 in. is required under the bot-
tom frame of the outdoor unit.
• In the drain piping work, make sure that drainage is discharged
securely.
(When routing the piping downward, check for water leakage.)
• A transportation metal in yellow and a washer are provided on the
leg of the compressor for protecting the unit during transport.
Remove them as described below.
(1) Open the sound-proof cover as shown in the above figure.
At this time, do not pull the sound-proof cover, and do not remove it
from the compressor.
(2) Remove the fixing nut.
(3) Remove the transportation metal and the washer as shown in the
above figure.
(4) Return and tighten the fixing nut again.
(5) Return the sound-proof cover to achieve the former status.
CAUTION
• If the unit is operated with the transportation metal attached, abnor-
mal vibration or sound may be generated.
6.
REFRIGERANT PIPING WORK
CAUTION
<To piping technician>
•
Make sure to open the stop valves after finishing 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 field piping must be installed by a licensed refrigeration technician
and must comply with relevant local and national regulations.
•
BRAZING REFRIGERANT PIPING
Do not use flux when brazing copper-to copper refrigerant piping.
(Particularly for the HFC refrigerant piping) Therefore, use the phosphor
copper brazing filler metal (BCuP) which does not require flux.
(Flux has an extremely negative effect on refrigerant piping systems.
For instance, if chlorine based flux is used, it will cause pipe corro-
sion. Flux containing fluorine will damage refrigerant oil.)
L
A
L
≤
H
0
L
≤
1/2H
10
1/2H
L
≤
H
12
H
L
Installation is not allowed.
4 or more
8 or more
80 or more
40 or more
A
L
60 or more
24 or more
120 or more
H
15/16
Resin
washer
Transportation metal removal procedure
5 1/2
1 3/4
5 1/2
24 3/8
Air outlet side
(13 5/8-14)
13 3/4
11 3/8
8 5/8
4 5/8
Bottom view
(unit: inch)
Drain hole
16 5/8
24 1/8
Compressor
Fixing nut
Washer
Transportation
metal
Sound-proof cover
Turn in the arrow direction
and remove it.
01_EN_3PN07193-7H.fm Page 7 Monday, December 27, 2010 4:30 PM
