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·Air inlet and outlet are free of obstructions.
·The air passage is not blocked.
·Condensate can drain properly.
·Overhead structure can support the weight of the
indoor unit.
·The false ceiling is not seem to be at an incline.
·Adequate clearance for maintenance and service is
provided.(See Fig.3.1.1 )
·Piping between the indoor and outdoor units is within
the allowable limits.(refer to the installation of the
outdoor unit )
·The indoor unit, outdoor unit, power supply wiring
and transmission wiring must be kept at least 3.3ft.(1m)
away from televisions and radios to prevent
electromagnetic interference.
(Noise may be generated depending on the conditions
under which the electric wave is generated, even if a
3.3ft allowance is maintained.)
·Do not install the indoor unit in a machine shop or
kitchen where vapor from oil or its mist flows to the
indoor unit. The oil will deposit on the heat exchanger,
thereby reducing the performance of the indoor unit,
and in severe cases, damaging the indoor unit.
·
Use suspension bolts to install the unit. Check whether
or not the overhead structure can support the
weight of the unit. If there is a risk that the structure
cannot provide adequate support, reinforce the structure
before installing the unit.
For bottom intake, repla
intake-side flange in the procedure listed in below
figures 3.1.2&3.1.3.
(1) Remove the inlet flange, then remove the
chamber lid. Refer to Fig. 3.1.2 for the directions.
(2) Reattach the removed plenum panel in the orientation
shown in Fig. 3.1.3, reattach the removed inlet flange
in the orientation as shown in Fig. 3.1.3.
Fig. 3.1.2
ce the plenum panel and the
Inlet flange
Filter(invalid for some models)
plenum panel
Plenum panel
Filter(invalid for
some models)
Inlet flange
Fig. 3.1.3
Installation and Maintenance
3.2 Installation
3.2.1 Suspension bolts
(1) Consider the pipe direction, wiring, and
maintenance carefully, choose the proper
direction and location for installation.
(2) Install the suspension bolts as shown in Fig. 3.2.1
below.
·For the concrete
6 to 6-5/16 in.
(150 to160mm)
Steel bar
Suspension bolts
(W3/8 or M10)
·For the wooden beam
Wood rib
2-3/8 to 3-1/2 in.
(
60 to 90 mm
)
Wooden beam
Fig. 3.2.1 Securing the suspension bolts
3.2.2 The position of the suspension bolts and the pipes
(1) Mark the location of the suspension bolts, the
refrigerant pipes, and the drain pipes.
(2) The dimension are shown below.
Model
(Cooling capacity)
37-13/16
9K/12K
48-7/16
18K
24K
36K
Fig. 3.3 Suspension bolts
8
·For the steel beam
Screw in
220 to 330 lb.
(100 to150kg)
Concrete
" " shaped steel beam
Suspension bolts
(W3/8 or M10)
Nut
Round washer
Square washer
Nut
Suspension bolts
Air outlet
a
b
Air inlet
[Unit: in. (mm)]
a
b
c
35-13/16
14-6/8
(961)
(910)
(375)
46-7/16
14-6/8
(1231)
(1180)
(375)
36-3/4
35-3/8
26-5/16
(934)
(900)
(669)
52-1/2
51-3/16
29-3/4
(1334)
(1300)
(756)
d
17-5/8
(447)
17-5/8
(447)
28-3/8
(720)
31-1/2
(800)
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