Panasonic WH-UD28AE, Service Manual

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11 Installation Instruction
11.1. Select The Best Location
INDOOR UNIT
• There should not be any heat source or steam near the unit.
• A place where air circulation in the room is good.
• A place where drainage can be easily done.
• A place where noise prevention is taken into consideration.
• Do not install the unit near the door way.
• Ensure the spaces indicated by arrows from the wall, ceiling,
fence or other obstacles.
• Recommended installation height for indoor unit shall be at
least 80 cm.
• Avoid location where ambient temperature is below -20
°
C.
• Must install on a vertical wall.
• When install electrical equipment at wooden building of
metal lath or wire lath, according to electrical facility
technical standard, no electrical contact between equipment
and building is allowed. Insulator must be installed in
between.
• Do not install the unit at outdoor. This is designed for indoor
installation only.
OUTDOOR UNIT
• If an awning is built over the unit to prevent direct sunlight or
rain, be careful that heat radiation from the condenser is not
obstructed.
• There should not be any animal or plant which could be
affected by discharged hot or cold air.
• Keep the spaces indicated by arrows from wall, ceiling,
fence or other obstacles.
• Do not place any obstacles which may cause a short circuit
of the discharged air.
• If outdoor unit installed near sea, region with high content of
sulphur or oily location (e.g. machinary oil, etc), it lifespan
maybe shorten.
• If piping length is over 10 m, additional refrigerant should be
added as shown in the table.
Example : For SD/UD24AE
If the unit is installed at a 20 m distance, the quantity of
additional refrigerant should be 300 g ...... (20 - 10) m x 30 g/m
= 300 g.
11.2. Indoor/Outdoor Unit
Installation Diagram
Model
Piping size Rated
Length
(m)
Max
Elevation
(m)
Min.
Piping
Length
(m)
Max.
Piping
Length
(m)
Additional
Refrigerant
(g/m)
Gas Liquid
SD/UD
24AE
5/8” 1/4” 7 20 3 30 30
SD/UD
28AE
5/8” 1/4” 7 20 3 30 30