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3. Selecting an installation site
•
Select a site with sturdy fixed surface sufficiently durable against the weight of
unit.
•
Before installing unit, the routing to carry in unit to the installation site should
be determined.
•
Select a site where the unit is not affected by entering air.
•
Select a site where the flow of supply and return air is not blocked.
•
Select a site where refrigerant piping can easily be led to the outside.
•
Select a site which allows the supply air to be distributed fully in room.
•
Do not install unit at a site with oil splashing or steam in much quantity.
•
Do not install unit at a site where combustible gas may generate, flow in, stag-
nate or leak.
•
Do not install unit at a site where equipment generating high frequency waves
(a high frequency wave welder for example) is provided.
•
Do not install unit at a site where fire detecter is located at the supply air side.
(Fire detector may operate erroneously due to the heated air supplied during
heating operation.)
•
When special chemical product may scatter around such as site chemical plants
and hospitals, full investigation is required before installing unit. (The plastic
components may be damaged depending on the chemical product applied.)
3.1. Install the indoor unit on a ceiling strong
enough to sustain its weight
Warning:
The unit must be securely installed on a structure that can sustain its weight.
If the unit is mounted on an unstable structure, it may fall down causing
injuries.
4. Fixing hanging bolts
4.1. Fixing hanging bolts
(Use M10 hanging bolts. The bolts should be supplied in the field.)
(Give site of suspension strong structure.)
Hanging structure
•
Ceiling: The ceiling structure varies from building to one another. For detailed
information, consult your construction company.
1 Reinforcing the ceiling with additional members (edge beam, etc) must be re-
quired to keep the ceiling at level and to prevent the ceiling from vibrations.
2 Cut and remove the ceiling members.
3 Reinforce the ceiling members, and add other members for fixing the ceiling
boards.
For wooden construction
•
Use the tie beam (for one story building) or second-floor beam (for two story
building) as strength members.
5. Installing the unit
5.1. Hanging the unit body
s Bring the indoor unit to an installation site as it is packed.
s To hang the indoor unit, use a lifting machine to lift and pass through the
hanging bolts.
s Install the indoor unit before ceiling work.
[Fig. 5.1.1] (P.2)
A Unit body
* Two installation methods are available
<When hanging the indoor unit directly>
1. Attach a washer and nut(s) to each suspension bolt. (The washers and nuts
are to be supplied locally.)
2. Fit the indoor unit to each suspension bolt.
3. Make sure that the unit is positioned level, then tighten each nut.
[Fig. 5.1.2] (P.2)
A Nut
8
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B Lifting machine
B Washer
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3.2. Securing installation and service space
•
Select the optimum direction of supply airflow according to the configuration of
the room and the installation position.
•
As the piping and wiring are connected at the bottom and side surfaces, and
the maintenance is made at the same surfaces, allow a proper space properly.
For the efficient suspension work and safety, provide a space as much as
possible.
Service space
[Fig. 3.2.1] (P.2)
1 When connecting air inlet
2 When installing the suspension fixtures prior to installation of the indoor unit with-
out inlet duct
3 When hanging the indoor unit directly without inlet duct
A Service space
C Air inlet
Suspension bolt pitch
[Fig. 3.2.2] (P.2)
E Top of the unit
F
4-ø12 suspension bolt holes
G Control box
H
Drain pan
3.3. Combining indoor units with outdoor
units
For combining indoor units with outdoor units, refer to the outdoor unit installation
manual.
•
To hang the air-conditioner, use a hard square timber of more than 6 cm if the
distance between beams is less than 90 cm and a hard square timber of more
than 9 cm if the distance between beams is less than 180 cm.
[Fig. 4.1.1] (P.2)
A Ceiling board
B Edge beam
D Square timber for hanging the air conditioner
For reinforced concrete construction
•
As shown in the figure below, fix the hanging bolts, or use square timbers to fix
the hanging bolts.
[Fig. 4.1.2] (P.2)
F Insert: 100 to 150 kg (1 piece) (field supply)
G M10 hanging bolt (field supply)
Product Weight (kg)
PEH-RP200MYA
70 kg
PEH-RP250MYA
80 kg
When using inlet duct
100 or more
When not using inlet duct
0 or more
<When installing the suspension fixture prior to installation of the indoor unit>
1. Loosen each suspension fixture bolt slightly, and remove the fixture and U-
shaped washers.
2. Adjust each suspension fixture bolt.
3. Attach a washer, nut and suspension fixture to each suspension bolt. (The
washers and nuts are to be supplied locally.)
4. Hook the indoor unit to the suspension fixtures.
5. Make sure that the unit is positioned level, then tighten each nut.
[Fig. 5.1.3] (P.2)
A Be sure to attach a U-shaped washer (4 washers in total).
When using inlet duct
100 or more
When not using inlet duct
25 or more
B Suspension bolt pitch
D Air outlet
I Main body
C Tie beam
E Pitch
H Reinforcement
A
B
130 or more
30 or more
Nut (*1) is not required if distance A is 0.
A
B
130 or more
55 or more
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