Service Space Around The Outdoor Unit; When Installing A Single Outdoor Unit; When Installing Many Outdoor Units - Mitsubishi Electric PUMY-71 Manual De Instalación

5. Service space around the outdoor unit

• If an optional air guide is needed, install it according to the manual or
technical documents supplied with the air guide.
• In the case of an optional branch pipe kit, the service space specified
in the manual supplied with the kit is required around the outdoor
unit, so refer to the manual when installing it.

5.1. When installing a single outdoor unit

1 Service space
Maintain an easily accessible service space in front of the unit as shown
in the diagram.
Min. 10
2 Top obstacles
If there are no obstacles in front or at the left or right of the unit, obsta-
cles above the unit are permitted as shown in the diagram.
• The front, right and left sides must be free of obstacles.
3 Unobstructed front (blowing side)
If the size of the space reserved for the unit is as shown in the diagram,
the unit can be installed so that obstacles are at the right, left and rear.
• The front and top must be unobstructed.
• The height of obstacles on either side must be the same or lower
than that of the outdoor unit.
2 3
Min.
500
4 Obstacles in the front (blowing side) only
If there are obstacles in front of the unit, keep the back, left/right, & top
unobstructed.
(mm)
Min.
Service space
500
(mm)
(mm)
5 Obstacles at the front & rear only
The outdoor unit cannot be used except if the following conditions are
met:
An optional outdoor air outlet guide (left/right & top unobstructed) must
be fitted.
Moreover, if there is no natural wind flowing between the obstacles, keep
the height or width of the obstacles within the following range to prevent
the risk of short cycling. (If either the front or rear satisfies the require-
ments, there is no special restriction on the remaining side).
Obstruction width: 1.5 times the width of outdoor unit or smaller
Obstruction height: Unit height or lower
Obstruction
6 Obstacles on 4 surrounding sides
The unit cannot be used if there are obstacles on all 4 surrounding sides,
even if there is more than the prescribed amount of space around the
outdoor unit and if the top is unobstructed.
7 Obstacles at the front & rear
This unit cannot be used if the following conditions are met:
6

5.2. When installing many outdoor units

1 Side-by-side arrangement
Remove the side screw on the pipe cover.
Keep the top unobstructed.
• Refrigerant piping and electric wiring cannot be attached on the right
side.
Min.
Min. 10
150 Up to 10 units
Keep the top side open
(mm)
Air outlet guide
7
(mm)
Min.
1000
(mm)
5