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2. Selecting a location for installation
* The branch box is only for indoor use.
Please attach the special optional cover to install the branch box in the
outdoors.
• Ensure that the branch box is installed above the ceiling of corridor, bath
room, etc., where persons are not regularly there.
Do not install near bed rooms, living rooms, etc. The sound of refrigerant
flowing through the piping may sometimes be audible.
Also, do not install where maintenance cannot be carried out.
• Ensure that it is located where noise in operation will not be a problem.
After power is supplied or after an operation stop for a while, a small clicking
noise may be heard from the inside of the branch box. The linear expansion
valve is opening and closing. The unit is not faulty.
3. Confirming supplied accessories
8
5
4
3
7
1
2
9
Fig. 3-1
• Ensure that the branch box is installed in a location which facilitates servicing
and maintenance. (ensure that the required maintenance hole or service space
is available).
• Determine the route of refrigerant piping, and electrical wiring beforehand.
• Ensure that the location of the installation is such that the length of refrigerant
piping is within the specified limits.
• Do not install in location that is hot or humid for long periods of time.
* Ensure that the unit is installed in a location able to support its weight.
Warning:
Ensure that the unit is installed firmly in a location able to support its weight.
If the installation is of insufficient strength the unit may fall, resulting in in-
jury.
3.1. Check the Branch Box accessories and parts
No.
Accessory name
Washer
1
(with insulation)
2
Washer
6
3
Pipe cover (Liquid)
4
Pipe cover (Gas)
5
Pipe cover (Liquid)
6
Pipe cover (Gas)
7
Joint cover (Liquid)
8
Joint cover (Gas)
9
Band
0
Conduit plate
Q'ty
Remarks
PAC-
PAC-
MKA53BC
MKA33BC
4
4
4
4
1
1
To outdoor unit
1
1
To outdoor unit
5
3
To indoor units
5
3
To indoor units
3
1
3
1
24
16
Fastened to the main body
1
1
and shipped.
en
2
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