4. Lifting method and weight of product
[Fig. 4.0.1] (P.2)
Caution:
•
Be very careful to carry product.
- Do not have only one person to carry product if it is more than 20 kg.
- PP bands are used to pack some products. Do not use them as a mean for transportation because they are dangerous.
- Do not touch heat exchanger fins with your bare hands. Otherwise you may get a cut in your hands.
- Tear plastic packaging bag and scrap it so that children cannot play with it. Otherwise plastic packaging bag may suffocate children to death.
- When carrying in outdoor unit, be sure to support it at four points. Carrying in and lifting with 3-point support may make outdoor unit unstable, resulting in a fall of it.
•
Protect the corners on the unit that come in contact with the sling with padding.
5. Installation of unit
5.1. Installation
[Fig. 5.1.1] (P.2)
A M10 anchor bolt procured at the site.
•
Fix unit tightly with bolts so that unit will not fall down due to earthquake or
gust.
•
Use concrete or angle for foundation of unit.
•
Vibration may be transmitted to the installation section and noise and vibration
may be generated from the floor and walls, depending on the installation con-
ditions. Therefore, provide ample vibrationproofing (cushion pads, cushion
frame, etc.).
•
Be sure that the corners are firmly seated. If the corners are not firmly seated,
the installation feet may be bent.
6. Drain piping work
[Fig. 6.0.1] (P.2)
A Drain piping
C Drain trap
D The drain pipe should extend below this level.
> =
2 × External static pressure
E
> =
2 × E
F
7. Duct work
1. In case of side flow unit (factory setting) is equipped with horizontal supply and
return air openings. Duct connection to the unit should be made with duct
flanges and secured directly to the air openings with flexible duct connectors
to avoid normal noise transmission.
2. For vertical air supply, a field supply plenum should be used.
The figure below shows the recommended method for duct connection.
3. In case of top flow unit (modified when installed) is equipped with vertical sup-
ply and horizontal return air openings. Duct connection to the unit should be
made with duct flanges and securely attached to the air openings with flexible
duct connectors.
4. To prevent air leakage, all duct seams should be taped.
Ducts run in air spaces that are not air-conditioned must be insulated and
provided with a vapor barrier.
Ducts exposed to the outside must be weather proofed.
For quiet operation, we recommend that the insulation on the supply duct be
placed inside, lining the duct.
5. Where ducts from the outside enter a building, the duct openings in the build-
ing should be sealed with weather stripping to prevent rain, duct, sand, etc.
from entering the building.
6. Fans will not accept any external resistance to airflow and what provision is
available if ductwork is to be fitted to the external fans.
7. Correctly sized filters must be fitted and there is no provision within the unit,
however the filters (field supply) may be installed in the return air.
8. Duct earth wiring must be connected to the earth point of unit (
8
B Corner is not seated.
B Socket R1
mark point).
Warning:
•
Be sure to install unit in a place strong enough to withstand its weight.
Any lack of strength may cause unit to fall down, resulting in a personal
injury.
•
Have installation work in order to protect against a strong wind and earth-
quake.
Any installation deficiency may cause unit to fall down, resulting in a
personal injury.
When building the foundation, give full attention to the floor strength, drain water
disposal <during operation, drain water flows out of the unit>, and wiring routes.
Down wiring precautions
When down wiring are performed, be sure that foundation and base work does not
block the base through holes.
[Fig. 5.1.2] (P.2)
A Bottom wiring through hole
1. The condensate drain socket (R1) is provided. The drain pipe is connected to
the drain socket.
2. The drain pipe must be provided with a trap on the outside of the unit and also
installed at an incline for proper drainage, as shown [Fig. 6.0.1] (P.2).
3. To prevent dew condensation and leakage, provide drain pipes with insulation.
4. Upon completion of the piping work, check that there is no leakage and that
the water drains off properly.
[Fig. 7.0.1] (P.3)
<A> Ex. Side flow
<B> Ex. Top flow
A
Duct
C
Single duct divider
E
Insulator
G
Rainproof the part where the duct flange is screwed on (Top flow only).
Caution:
•
Outlet duct is 850 mm or more necessary to construct.
•
To connect the air conditioner main body and the duct for potential equali-
zation.
•
Mount holes for outlet duct flange and inlet duct.
[Fig. 7.0.2] (P.3)
<A> In case of side flow
<B> In case of top flow
A Inlet duct flange
C Same as inlet and outlet duct flange
E 28-ø3 holes (Inlet duct mount holes)
B (bolt hole)
B Roof curb
D Plenum divider
F Keep duct-work length 850 mm or more
B
Outlet duct flange
2 × 100 pitch = 200
D
F
18-ø3 holes (Outlet duct mount holes)