Installation Location; Ventilation And Service Space - Mitsubishi Electric MXZ-8B48NA Manuel D'installation

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3. Installation location

Fig. 3-1
Fig. 3-2
Fig. 3-4
4
3.1. Refrigerant pipe
Refer to 5.2. Pipe length and height difference.
3.2. Choosing the outdoor unit installation location
• Avoid locations exposed to direct sunlight or other sources of heat.
• Select a location from which noise emitted by the unit will not inconvenience
• Select a location permitting easy wiring and pipe access to the power source and
• Avoid locations where combustible gases may leak, be produced, flow, or ac-
• Note that water may drain from the unit during operation.
• Select a level location that can bear the weight and vibration of the unit.
• Avoid locations where the unit can be covered by snow. In areas where heavy
• Avoid locations exposed to oil, steam, or sulfuric gas.
• Use the transportation handles of the outdoor unit to transport the unit. If the unit
mm (inch)
3.3. Outline dimensions (Outdoor unit) (Fig. 3-1)
Constraints on indoor unit installation
You should note that indoor units that can be connected to this outdoor unit are the
following models.
• Indoor units with model numbers 06, 09, 12, 15, 18, 24, 30 can be connected.
Verifi cation
The rated capacity should be determined by observing the table below. The unit'
s quantities are limited in 2 to 8 units. For the next step, make sure that the total
rated capacity selected will stay in a range of 12 - 70.2 kBTU/h.
Example:
Combinations in which the total capacity of indoor units exceeds the capacity of the
outdoor unit (= 54.0 kBTU/h) will reduce the cooling capacity of each indoor unit
below their rated cooling capacity. Thus, combine indoor units with an outdoor unit
within the outdoor unit's capacity (= 54.0 kBTU/h), if possible.

3.4. Ventilation and service space

3.4.1. Windy location installation
When installing the outdoor unit on a rooftop or other location unprotected from
the wind, situate the air outlet of the unit so that it is not directly exposed to strong
winds.
Strong wind entering the air outlet may impede the normal airfl ow and a malfunc-
tion may result.
The following shows three examples of precautions against strong winds.
1 Face the air outlet towards the nearest available wall about 50 cm (19-11/16")
2 Install an optional air guide if the unit is installed in a location where strong winds
3 Position the unit so that the air outlet blows perpendicularly to the seasonal wind
Fig. 3-3
neighbors.
indoor unit.
cumulate.
snow fall is anticipated, special precautions such as raising the installation loca-
tion or installing a hood on the air intake must be taken to prevent the snow from
blocking the air intake or blowing directly against it. This can reduce the airfl ow
and a malfunction may result.
is carried from the bottom, hands or fi ngers may be pinched.
Refer to the table below for possible 2-8 room, indoor unit combinations.
MSZ-18 = 18
+
SEZ-12 = 12
+
SLZ-12 = 12
Total rated capacity
+
60 ≤ 70 kBTU/h
SEZ-09 = 9
+
SLZ-09 = 9
Indoor unit type
06
Rated capacity (Cooling) (kBTU/h)
6
away from the wall. (Fig. 3-2)
from a typhoon, etc. may directly enter the air outlet. (Fig. 3-3)
A Air guide
direction, if possible. (Fig. 3-4)
B Wind direction
09
12
15
18
24
9
12
15
18
24
30
30

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