10
INSTALLATION OF INDOOR, OUTDOOR UNIT
ENGLISH
You need to select adequate installation location considering the following conditions, and make
sure to acquire the consent of the user.
- Select a place that has no direct impact of snow or rain
- Select a place with no danger of snowfall or icicle drop
- Select a place without weak floor or base such as decrepit part of the building or with a lot of
snow accumulation
- Install at a place with fluent water draining to prevent damage from localized heavy rain and
avoid frequent flooded area.
• Single Operation
If installed tube is shorter than 7.5 m, 
additional charging is not necessary.
Additional Refrigerant
= [A-7.5 (m)] x Additional refrigerant (g/m)
INSTALLATION OF OUTDOOR UNIT
More than
300mm
Fence or
obstacles
More than 700mm
More than 600mm
More than
300mm
More than
300mm
Sunroof
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
Model
Pipe Size mm(inch) Length A(m) Elevation B(m)
Additional
refrigerant
(g/m)
Gas Liquid Standard Max. Standard Max.
UU09W Ø9.52 (3/8) Ø6.35 (1/4) 7.5 20 5 15 20
UU12W Ø9.52 (3/8) Ø6.35 (1/4) 7.5 20 5 15 20
UU18WE Ø12.7 (1/2) Ø6.35 (1/4) 7.5 25 5 15 20
UU18W Ø12.7 (1/2) Ø6.35 (1/4) 7.5 30 5 30 20
UU24WE Ø15.88 (5/8) Ø9.52 (3/8) 7.5 30 5 15 40
UU24W Ø15.88 (5/8) Ø9.52 (3/8) 7.5 50 5 30 40
UU30W Ø15.88 (5/8) Ø9.52 (3/8) 7.5 50 5 30 40
Installation Places
Piping length and the elevation
- If an awning is built over the unit to prevent direct
sunlight or rain exposure, make sure that heat radi-
ation from the condenser is not restricted.
- Ensure that the spaces indicated by arrows around
front, back and side of the unit are respected.
- Do not place animals and plants in the path of the
warm air.
- Take the air conditioner weight into account and
select a place where noise and vibration are mini-
mum.
- Select a place so that the warm air and noise from
the air conditioner do not disturb neighbors.
- Select a place that can sufficiently endure the
weight and vibration of the outdoor unit and where
even installation is possible.
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