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Indoor Unit
Installation
Fig. 4.11
Step 3: Duct and accessories installation
NOTE: 1. Do not place the connecting duct
weight on the indoor unit.
2. When connecting the duct, use an
nonammable canvas tie-in to prevent
vibrating.
3. Insulation foam must be wrapped outside the
duct to avoid condensate. An internal duct
underlayer can be added to reduce noise,
if the end-user requires.
1. Install the lter (optional) according to the size
of the air inlet.
5. Refer to the following static pressure guidelines
when installing the indoor unit.
Change the fan motor static pressure
according to external duct static pressure.
2. Install the canvas tie-in between the body and
the duct.
3. The air inlet and air outlet duct should be far
enough apart enough to a avoid air passage
short-circuit.
4.
Connect the duct according to the following
diagram:
Canvas tie-in Canvas tie-in
Air outlet
Isolation booth
Isolation booth
checking orice
Air inlet
Air dust lter
Table.4-2
MODEL
(Btu/h)
Static Pressure
(Pa/in.wg)
0~100/0~0.4
18K
0~160/0~0.64
24K
0~160/0~0.64
30K~36K
0~160/0~0.64
42K~60K
0~50/0~0.2
9K
0~50/0~0.2
12K
Cut o the roof beam.
Strengthen the point at which the cut
was made. Consolidate the roof beam.
Fig. 4.10
Screw nut
Washer
Hanging screw bolt
Overhang part
Shockproof cushion
NOTE:
Conrm the minimum drain tilt is 1/100
or more.
CAUTION
The unit body must be completely aligned with
the hole. Ensure that the unit and the hole are
the same size before moving on.
2.
Install and t pipes and wires after you have
nished installing the main body.When
choosing where to start, determine the
direction of the pipes to be drawn out.
Especially in cases where there is a ceiling
involved, align the refrigerant pipes, drain
pipes, and indoor and outdoor lines with their
connection points before mounting the unit.
3. Install hanging screw bolts.
4. After you select an installation location,align
the refrigerant pipes, drain pipes, as well as
indoor and outdoor wires with their
connection points before mounting the unit.
5. Drill 4 holes 10cm (4”) deep at the ceiling
hook positions in the internal ceiling. Be sure
to hold the drill at a 90° angle to the ceiling.
6. Secure the bolt using the washers and nuts
provided.
7. Install the four suspension bolts.
8. Mount the indoor unit with at least two
people to lift and secure it. Insert suspension
bolts into the unit’s hanging holes. Fasten
them using the washers and nuts provided.
(See Fig. 4.9).
9. Mount the indoor unit onto the hanging
screw bolts with a block. Position the
indoor unit at using a level indicator to
prevent leaks. (See Fig. 4.10).
Fig. 4.9
Page 12
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