R(Y)(P)71~125B7
Split System air conditioners
4PW10931-1B
Installation manual
2
Precautions
Do not install or operate the unit in rooms mentioned below.
■
Where mineral oil like cutting oil is present.
■
Where the air contains high levels of salt such as that near the
ocean.
■
Where sulphurous gas is present such as that in areas of hot
spring.
■
Where voltage fluctuates a lot such as that in factories.
■
In vehicles or vessels.
■
Where high concentrations of oil vapour or spray are present
such as that in kitchens.
■
Where machines generating electromagnetic waves are
present.
■
Where acidic or alkaline vapour is present.
2
When installing the unit in a place exposed to strong wind, pay
special attention to the following.
Strong winds of 5 m/sec or more blowing against the outdoor
unit's air outlet causes short circuit (suction of discharge air),
and this may have the following consequences:
-
Deterioration of the operational capacity.
-
Frequent frost acceleration in heating operation.
-
Disruption of operation due to rise of high pressure.
-
When a strong wind blows continuously on the face of the
unit, the fan can start rotating very fast until it breaks.
Refer to the figures for installation of this unit in a place where
the wind direction can be foreseen.
■
Turn the air outlet side toward the building's wall, fence or
screen.
■
Set the outlet side at a right angle to the direction of the wind.
3
Prepare a water drainage channel around the foundation, to
drain waste water from around the unit.
4
If the water drainage of the unit is not easy, please build up the
unit on a foundation of concrete blocks, etc. (the height of the
foundation should be maximum 150 mm).
5
If you install the unit on a frame, please install a waterproof plate
within 150 mm of the underside of the unit in order to prevent the
invasion of water from the lower direction.
6
When installing the unit in a place frequently exposed to snow,
pay special attention to the following:
-
Elevate the foundation as high as possible.
-
Remove the rear suction grille to prevent snow from
accumulating on the rear fins.
7
If you install the unit on a building frame, please install a
waterproof plate (within 150 mm of the underside of the unit) in
order to avoid the drainwater dripping. (See figure).
P
RECAUTIONS
ON
INSTALLATION
■
Check the strength and level of the installation ground so that
the unit will not cause any operating vibration or noise after
installation.
■
In accordance with the foundation drawing in the figure, fix the
unit securely by means of the foundation bolts. (Prepare four
sets of M12 foundation bolts, nuts and washers each which are
available on the market.)
■
It is best to screw in the foundation bolts until their length are
20 mm from the foundation surface.
Installation method for prevention of falling over
If it is necessary to prevent the unit from falling over, install as shown
in the figure.
■
prepare all 4 wires as indicated in the drawing
■
unscrew the top plate at the 4 locations indicated A and B
■
put the screws through the nooses and screw them back tight
A) location of the 2 fixation holes on the front side of the unit
B) location of the 2 fixation holes on the rear side of the unit
C) wires: field supply
Drain pipe disposal
If drain pipe disposal from the outdoor unit causes trouble, provide
the drain piping by using of the drain socket (optional).
Strong wind
Blown air
Strong wind
Drain hole
