AirStage ABYA045GTEH 설치 매뉴얼 - 페이지 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

10 to 15 mm

[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

(locally purchased)

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)

Special nut A (Accessories)

Special nut B (Accessories)

M10 Nut (locally purchased)

980 to 1470 N (100 to 150 kgf)

Special nut B

(Accessories)

M10 Nut

(locally purchased)

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 (locally purchased) 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.

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.

It is necessary to use seamless copper pipes.

Material : Phosphor deoxidized seamless copper pipes It is desirable that the amount

of residual oil is less than 40 mg/10 m.

Do not use copper pipes that have a collapsed, deformed, or discolored portion

(especially on the interior surface). Otherwise, the expansion valve or capillary tube

may become blocked with contaminants.

Wall

Glass wool insulate (locally purchased)

(10 to 20 mm thick)

INDOOR UNIT

(Top view)

Wall

Ceiling panel

CAUTION

En-4