Mitsubishi Electric PUMY-P-NKMU Installation Manual page 3

Caution:
Caution:
season.
Caution:
- Do not use thin pipes. (Refer to page 5)
Although this product (only "-BS" model) has been designed to be resistant to salt
damage, observe the following precautions to maintain the performance of the unit.
1. Avoid installing the unit in a location where it will be exposed directly to seawater
or sea breeze.
2. If the cover panel may become covered with salt, be sure to install the unit in a
location where the salt will be washed away by rainwater. (If a sunshade is installed,
Refer to Fig. 4-1.
indoor unit.
Gauge manifold
Charge hose
Gas leak detector
-
Torque wrench
3. To ensure that water does not collect in the base of the outdoor unit, make sure
that the base is level, not at angle. Water collecting in the base of the outdoor unit
could cause rust.
4. If the unit is installed in a coastal area, clean the unit with water regularly to remove
any salt build-up.
5. If the unit is damaged during installation or maintenance, be sure to repair it.
6. Be sure to check the condition of the unit regularly.
7. Be sure to install the unit in a location with good drainage.
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
(inch)
Constraints on indoor unit installation
You should note that indoor units that can be connected to this outdoor unit are the
following models.
below for possible 2-12 room, indoor unit combinations.
The rated capacity should be determined by observing the table below. The unit's
quantities are limited in 2 to 12 units. 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.
Indoor unit type P06 P08 P12 P15 P18 P24 P30 P36 P48 P54 P72
Rated capacity
6,000 8,000 12,000 15,000 18,000 24,000 30,000 36,000 48,000 54,000 72,000
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.
Tools (for R410A)
Flare tool
Size adjustment gauge
Vacuum pump adapter
Electronic refrigerant charging scale
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