Installation Location - Mitsubishi Electric CITY MULTI PUMY-SP112VKM Installation Manual

2. Installation location

Fig. 2-1
Table 2 Connectable indoor units quantities
Model
Only City Multi indoor units
(Connection without Branch
PUMY-SP112
PUMY-SP125
PUMY-SP140
4
(mm)
Only system
Only M series, P series,
S series indoor units
box) (Connection with Branch box)
1-9 2-8
1-10 2-8
1-12 2-8
2.1. Refrigerant pipe
Refer to Fig. 4-1, 4-2.
2.2. 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 neigh-
bors.
• Select a location permitting easy wiring and pipe access to the power source and
indoor unit.
• Avoid locations where combustible gases may leak, be produced, flow, or accumu-
late.
• 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 snow
fall is anticipated, special precautions such as raising the installation location or
installing a hood on the air intake must be taken to prevent the snow from block-
ing the air intake or blowing directly against it. This can reduce the airflow and a
malfunction may result.
• Avoid locations exposed to oil, steam, or sulfuric gas.
• Use the transportation handles of the outdoor unit to transport the unit. If the unit
is carried from the bottom, hands or fingers may be pinched.
2.3. Outline dimensions (Outdoor unit) (Fig. 2-1)
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 15-140 can be connected.
When using Branch box, Indoor units with model numbers 15-100 can be connected.
Refer to the table 1 below for possible room, indoor unit combinations.
Verification
The rated capacity should be determined by observing the table below. The unit's
quantities are limited as shown in the following table 2. For the next step, make
sure that the total rated capacity selected will stay in a range of 50% – 130% of the
outdoor unit capacity.
• PUMY-SP112 6.3 – 16.2 kW
• PUMY-SP125 7.1 – 18.2 kW
• PUMY-SP140 8.0 – 20.2 kW
Table 1-1 City Multi indoor units
Indoor unit type
15 20 22 25
Rated capacity
1.7 2.2 2.5 2.8 3.2 3.6 4.0 4.5 5.0 5.6 6.3 7.1
(Cooling) (kW)
Indoor unit type
71 80 100 125 140
Rated capacity
8.0 9.0 11.2 14.0 16.0
(Cooling) (kW)
Table 1-2 M series, P series, S series
Indoor unit type
15 20 22
Rated capacity
1.5 2.0 2.2
(Cooling) (kW)
Mixed system
One Branch box
Connection with City Multi indoor
Branch box units
Max. 5 Max. 5
Max. 5 Max. 5
Max. 5 Max. 5
*1 When connecting 7 indoor units via branch box, connectable citymulti indoor units
are 3; connecting 8 indoor units via branch box, connectable citymulti indoor units
are 2.
Table 3 Connectable Branch box quantities
Model Branch box
PUMY-SP112/125/140 1-2
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.
28 32 36 40 45 50
25 35 42 50 60 71 80
2.5 3.5 4.2 5.0 6.0 7.1 8.0 10.0
Two Branch box
Connection with City Multi indoor
Branch box units
Max. 7 or 8*1 Max. 3 or 2*1
Max. 8 Max. 3
Max. 8 Max. 3
56 63
100