Installation Location - Mitsubishi CITY MULTI PURY-EM-YNW-A1(-BS) Series Installation Manual

7. Installation location

Do not install the unit where combustible gas may leak.
- If combustible gas accumulates around the unit, fire or explosion may result.
・Provide sufficient space around the unit for effective operation, efficient air movement, and ease of access for
maintenance.
・Note that refrigerant gas is heavier than air and will therefore tend to collect in low spots such as basements.
・When an indoor unit that draws in outside air exits near the outdoor unit, be careful not to affect the normal
operation of the indoor unit.
・When the amount of drain water is excessive, drain water comes out of the outdoor unit along the panel during
heating operation. Provide sufficient space around the unit according to the instructions in section 7-1 and 7-2.
・R32 is heavier than air—as well as other refrigerants—so tends to accumulate at the base (in the vicinity of the
floor). If R32 accumulates around the base, it may reach a flammable concentration in case the room is small. To
avoid ignition, maintain a safe work environment by ensuring appropriate ventilation. If the refrigerant leaks in a
room or an area that has insufficient ventilation, refrain from using flames until the work environment is improved by
ensuring appropriate ventilation.
・Do not install the outdoor unit in a basement or machinery room, where the refrigerant stagnates.
・Install the outdoor unit in a place where at least one of the four sides is open.
Good
・If the unit needs to be installed in a space where all four sides are blocked, confirm that one of these situations (A,
B, or C) is satisfied.
A: Secure sufficient installation space (minimum installation area: Amin).
Install the unit in a space with an installation area of Amin or more, corresponding to the refrigerant amount
(M). (M = factory-charged refrigerant + refrigerant to be added on site)
M (kg) Amin (m
10
20
30
40
50
60
B: Install the unit in a space with a wall height of ≤ 0.125 m.
Wall height ≤ 0.125 m
(No restrictions apply to
the refrigerant amount)
WT09050X01
Good
)
2
112
223
334
445
556
Amin
667
Good
Wall height ≤ 0.125 m
15
NG