Mitsubishi Electric PUMY-P36NKMU4 Manuel D'installation page 4

2. Installation location
en
3
(in)
Fig. 2-1
2.1. Refrigerant pipe
Refer to Fig. 4-1.
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
neighbors.
• 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
blocking 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)
2.4. Constraints on indoor unit installation
You should note that indoor units that can be connected to this outdoor unit are the
following constraints.
• Indoor units with model numbers 04-72 can be connected.
• When using Branch box, Indoor units with model numbers 06-36 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-(H)P36 18 – 46 kBtu/h
• PUMY-HP42 21 – 54 kBtu/h
• PUMY-(H)P48 24 – 62 kBtu/h
• PUMY-P60 30 – 78 kBtu/h
Table 1-1: City Multi indoor units (P·FY series)
Indoor unit type P04 P05 P06 P08 P12 P15 P18 P24 P30 P36 P48 P54 P72
Rated capacity
(Cooling) 4 5 6 8
(kBtu/h)
* When connecting PEFY-P*NMHU to PUMY-(H)P36/42/48/60, the maximum external
static pressure allowable is 0.8 in.wg (200 Pa).
Table 1-2: M series, P series, S series
Model No.
Rated capacity (Cooling) (kBtu/h)
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.
12 15 18 24 30 36 48
06 09 12 15 18 24
6 9 12 15 18 24
54 72
30 36
30 36