Installation Location; Ventilation And Service Space - Mitsubishi Electric MXZ-8C48NA Manuel D'installation

3. Installation location

Fig. 3-1
Fig. 3-2
Fig. 3-4
4
3.1. Refrigerant pipe
Refer to 5.. 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
3.3. Outline dimensions (Outdoor unit) (Fig. 3-1)
(inch)
3.4. Constraints on indoor unit and branch box installation
You should note that indoor units that can be connected to this outdoor unit have
the following constraints.
• Indoor units with model numbers 06, 09, 1, 15, 18, 4, 30, and 36 can be con-
• For the number of units that can be connected, refer to Table 1 below.
• The total rated capacity (cooling) of the connected indoors units (refer to Table )
In addition, up to  branch boxes can be connected.
Table 1: Number of units that can be connected and capacity range of connected units
* For the MVZ series, 1 unit or more can be connected. For units other than the MVZ
Table : Rated capacity (cooling) of the indoor units
Example: MXZ-8C48
Combinations in which the total capacity of indoor units exceeds the capacity of the
outdoor unit 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, if possible.
Fig. 3-3

3.5. Ventilation and service space

3.5.1. 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 airflow and a malfunc-
tion may result.
The following shows 3 examples of precautions against strong winds.
1 Face the air outlet towards the nearest available wall about 50 cm (19-11/16")
B
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
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 airflow
and a malfunction may result.
is carried from the bottom, hands or fingers may be pinched.
nected.
must not exceed 130% of the outdoor unit capacity (refer to the capacity range of
connected units in Table 1).
Number of units that can
Outdoor unit model name
be connected
MXZ-4C36 1* – 4 units
MXZ-5C4 1* – 5 units
MXZ-8C48 1* – 8 units
series, connect  units or more.
Model No. 06
Rated capacity (Cooling) 6
MSZ-18 = 18
+
SEZ-1 = 1
+
Total rated capacity
SLZ-1 = 1
60 ≤ 62 kBTU/h
+
SLZ-09 = 9
+
SLZ-09 = 9
away from the wall. (Fig. 3-)
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
Capacity range of con-
nected units
1 – 46 kBTU/h
1 – 54 kBTU/h
1 – 6 kBTU/h
09 1 15 18 4 30
9 1 15 18 4 30
36
36