Lifting Method; Installation Of Unit; Installation - Mitsubishi Electric CITY MULTI PUHY-HP-YHM-A Manuel D'installation

7. Lifting method

[Fig. 7.0.1] (P.2)
• Use suspension ropes that will withstand the weight of the unit.
• When moving the unit, use a 4-point suspension, and avoid giving impacts to
the unit (Do not use 2-point suspension).
• Place protective pads on the unit where it comes in contact with the ropes to
protect the unit from being scratched.
• Set the angle of roping at 40° or less.
• Use 2 ropes that are each longer than 8 meters.
• Place protective padding at the corners of the product to protect the product
from scratches or dents that might be caused by the rope.

8. Installation of unit

8.1. Installation

[Fig. 8.1.1] (P.3)
<A> Without detachable leg
A M10 anchor bolt procured at the site.
C Fixing bracket for the hole-in anchor bolt (3 locations to fix with screws).
D Detachable leg
• Fix unit tightly with bolts so that unit will not fall down due to earthquakes or
strong winds.
• Use concrete or an angle bracket as the foundation of unit.
• Vibration may be transmitted to the installation section and noise and vibration
may be generated from the floor and walls, depending on the installation con-
ditions. Therefore, provide ample vibrationproofing (cushion pads, cushion
frame, etc.).
• Build the foundation in such way that the corner of the installation leg is se-
curely supported as shown in the figure. (Fig. 8.1.1)
When using a rubber isolating cushion, please ensure it is large enough to
cover the entire width of each of the unit's legs. If the corners are not firmly
seated, the installation feet may be bent.
• The projecting length of the anchor bolt should be less than 30 mm.
• Hole-in anchor bolts are not compatible with this product. However, if fixing
brackets are mounted on the 4 locations of the unit attachment part, hole-in
anchor bolts can be used.
[Fig. 8.1.2] (P.3)
A Screws
• The detachable leg can be removed at the site.
• Detaching the detachable leg
Loosen the three screws to detach the detachable leg (Two each in the front
and back).
If the base leg finish is damaged when detaching, be sure to repair at the site.
[Fig. 8.1.3] (P.3)
A Inlet
<B> With detachable leg
B Corner is not seated.
B Outlet
Caution:
Be very careful when carrying/moving the product.
- When installing the outdoor unit, suspend the unit at the specified location of the
unit base. Stabilize as necessary so that it does not move to the side and support
it at 4 points. If the unit is installed or suspended with 3-point support, the unit
may become unstable and fall.
• In abnormally harsh environments such as cold and/or windy areas, sufficient
countermeasures to guard against excessive wind and snow should be taken
to ensure the unit's correct operation. When the unit is expected to operate in
cooling mode in conditions under 10°C, in snowy areas, in environments subject
to strong winds or rain, install air inlet and outlet ducting as shown in
[Fig. 8.1.3].
• When the unit is expected to operate continuously for an extended period of
time in outside temperatures below 0°C, take appropriate measures, such as
the use of a unit base heater, to prevent icing on the unit base.
Note:
1. Height of frame base for snow damage prevention (H) shall be twice as high as
expected snowfall. Width of frame base shall not exceed that of the unit. The
frame base shall be made of angle steel, etc., and designed so that snow and
wind slip through the structure. (If frame base is too wide, snow will be
accumulated on it.)
2. Install unit so that wind will not directly lash against openings of inlet and outlet ducts.
3. Build frame base at customer referring to this figure.
Material : Galvanized steel plate 1.2T
Painting : Overall painting with polyester powder
Color : Munsell 5Y8/1 (same as that of unit)
4. When the unit is used in a cold region and the heating operation is continuously
performed for a long time when the outside air temperature is below freezing,
install a heater to the unit base or take other appropriate measures to prevent
water from freezing on the base.
Warning:
• Be sure to install unit in a place strong enough to withstand its weight.
Any lack of strength may cause unit to fall down, resulting in a personal
injury.
• Have installation work in order to protect against strong winds and
earthquakes.
Any installation deficiency may cause unit to fall down, resulting in a
personal injury.
When building the foundation, give full attention to the floor strength, drain water
disposal <during operation, drain water flows out of the unit>, and piping and wir-
ing routes.
Precautions when routing the pipes and wires below the unit (Without
detachable leg)
When routing the pipes and wires below the unit, be sure that the foundation and
base work do not block the base through-holes. Also make sure the foundation is
at least 100 mm high so that the piping can pass under the unit.
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