Mitsubishi Electric DXK09ZJ-S Technical Manual page 37

1. HAULAGE AND INSTALLATION
When a unit is hoisted with slings for haulage, take into consideration the offset of its gravity center position.
CAUTION
If not properly balanced, the unit can be thrown off-balance and fall.
1) Delivery
• Deliver the unit as close as possible to the installation site before removing it from
the packaging.
• When you have to unpack the unit for a compelling reason before you haul it to
the installation point, hoist the unit with nylon slings or ropes and protection pads
so that you may not damage the unit.
2) Portage
• The right hand side of the unit as viewed from the front (diffuser side) is heavier.
A person carrying the right hand side must take heed of this fact. A person
carrying the left hand side must hold with his right hand the handle provided on
the front panel of the unit and with his left hand the corner column section.
3) Selecting the installation location
Be careful of the following conditions and choose an installation place.
• Where air is not trapped.
• Where the installation fittings can be firmly installed.
• Where wind does not hinder the intake and outlet pipes.
• Out of the heat range of other heat sources.
• A place where stringent regulation of electric noises is applicable.
• Where it is safe for the drain water to be discharged.
• Where noise and hot air will not bother neighboring residents.
• Where snow will not accumulate.
• Where strong winds will not blow against the outlet pipe.
• A place where no TV set or radio receiver is placed within 1m.
(If electrical interference is caused, seek a place less likely to cause the problem)
• If a operation is conducted when the outdoor air temperature is –5 C lower, the outdoor unit should be
installed at a place where it is not influenced by natural wind.
• Where it is likely that the unit is subjected to strong winds, provide wind guards according to the
following guidelines. Strong winds can cause performance degradation, an accidental stop due to a rise of
high pressure and a broken fan.
4) Caution about selection of installation location
(1) If the unit is installed in the area where the snow will accumulate, following measures are required.
The bottom plate of unit and intake, outlet may be blocked by snow.
1 Install the unit on the base so that the bottom is
higher than snow cover surface.
Since drain water generated by defrost control may freeze, following measures are required.
• Do not execute drain piping work by using a drain elbow and drain grommets (optional parts).
[Refer to Drain piping work.]
(Take particular care in carrying in or moving the unit, and always perform such an operation with two or more persons.)
Pad
Heavy
2 Install the unit under or provide the roof on site.
(2) If the unit can be affected by strong wind, following measures are required.
Strong wind can cause damage of fan (fan motor), or can cause performance degradation, or can trigger
anomalous stop of the unit due to rising of high pressure.
1 Place the unit outlet pipe perpendicular to the
wind direction.
Over 500mm Over 500mm
5) Installation space
• Walls surrounding the unit in the four sides are not
acceptable.
• There must be a 1-meter or larger space in the above.
• When more than one unit are installed side by side,
provide a 250mm or wider interval between them as a
service space. In order to facilitate servicing of
controllers, please provide a sufficient space between
units so that their top plates can be removed easily.
• Where a danger of short-circuiting exists, install guide
louvers.
• When more than one unit are installed, provide sufficient
intake space consciously so that short-circuiting may not
occur.
• Where piling snow can bury the outdoor unit, provide
proper snow guards.
6) Installation
1 Anchor bolt fixed position
Model 09, 12
111 510 157.8
Intake
Outlet
2 Notabilia for installation
Fasten with bolts
(M10-12)
Use a long block to extend the width. Use a thicker block to anchor deeper.
• In installing the unit, fix the unit's legs with bolts specified on the left.
• The protrusion of an anchor bolt on the front side must be kept within 15mm.
• Securely install the unit so that it does not fall over during earthquakes or strong winds, etc.
• Refer to the above illustrations for information regarding concrete foundations.
• Install the unit in a level area. (With a gradient of 5mm or less.) Improper installation can result in a
compressor failure, broken piping within the unit and abnormal noise generation.
2 Install so the direction of the air from the
blowing outlet will be perpendicular to the
direction of the wind.
Wind
direction
Wind
direction
(mm)
Model 09, 12, 18
Example installation
I II III IV
Size
L1 Open 280 280 180
L2 100 75 Open Open
L3 100 80 80 80
L4 250 Open 250 Open
The height of a wall is 1200mm or less.
L
Intake
3
( service )
L
2
space
L
4
Intake
Outlet
L
1
Model 18
88.4 510 200
Intake
Outlet