AirStage ABYA36GATH Manuale di installazione - Pagina 5
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[For 4 Left rear piping, 5 Left piping]
• Transfer the Drain cap and Drain cap seal.
Drain cap seal
knockout hole
(for drain hose)
When removing the knockout port, be careful not to damage the indoor unit internal
parts and surrounding area (outer case).
When processing the knockout port, be careful not to injure yourself with burrs, etc.
3.3.5. Drilling the holes and attaching the suspension bolts
(1) Drill ø25 mm holes at the suspension-bolt locations.
(2) Install the bolts, then temporarily attach Special nuts A and B and a normal M10 nut
to each bolt. (The 2 special nuts are provided with the unit. The M10 nut must be
obtained locally.)
Bolt Strength
Ceiling panel
Special nut A (Accessories)
10 to 15 mm
Special nut B (Accessories)
M10 Nut (Field supply)
[If using anchor bolts]
(1) Drill holes for anchor bolts at the locations at which you will set the suspension bolts.
Note that anchor bolts are M10 bolts (to be obtained locally).
(2) Install the anchor bolts, then temporarily attach special nut "B" (Accessories) and a
locally-procured M10 nut to each of the bolts.
Anchor-Bolt Strength
Ceiling
M10 Anchor bolt
(Field supply)
Drain cap
Indoor unit
Drain pan
Drain cap seal
Drain cap
Push cap all the way on
(as far as it will go).
Indoor unit
CAUTION
980 to 1470 N (100 to 150 kgf)
980 to 1470 N (100 to 150 kgf)
Special nut B
(Accessories)
M10 Nut
(Field supply)
3.3.6. Installing the indoor unit
(1) Lift unit so that suspension bolts pass through the suspension fi ttings at the sides (4
places), and slide the unit back.
Ceiling
Ceiling panel
INDOOR UNIT
(2) Fasten the indoor unit into place by tightening-up the special "B" bolts and the M10
nuts. Make sure that unit is secure and will not shift back and forth.
[For Half-Concealed Installation]
When installing the indoor unit in a semi-concealed orientation, make sure to reinforce the
insulation (fi eld supply) of the unit on all sides. Drops of water may fall from the unit if it is
not thoroughly insulated.
In order to check the drainage, be sure to use a level during installation of the indoor
unit. If the installation site of the indoor unit is not level, water leakage may occur.
4. PIPE INSTALLATION
]
Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with
refrigerant R410A models. Also, when storing the piping, securely seal the openings
by pinching, taping, etc.
While welding the pipes, be sure to blow dry nitrogen gas through them.
] 1
4.1. Selecting the pipe material
Do not use existing pipes from another refrigeration system or refrigerant.
Use pipes that have clean external and internal sides without any contamination
which may cause trouble during use, such as sulfur, oxide, dust, cutting waste, oil, or
water.
Wall
Wall
Glass wool insulate (Field supply)
(10 to 20 mm thick)
INDOOR UNIT
(Top view)
Wall
Ceiling panel
CAUTION
CAUTION
CAUTION
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