11.2 Maintenance Space: Outdoor
Unit
Air-out
Air-out
Air-in
Air-in
Air-in
Air-in
Make sure there is sufficient space around the unit for
maintenance work, and the minimum space for air inlet
and air outlet is reserved (see below to select a feasible
method).
Ensure enough space for maintenance. The
units in the same system must be at the same
height.
Outdoor units must be spaced such that
sufficient air may flow through each unit.
Sufficient airflow across heat exchangers is
essential for outdoor units to function
properly.
NOTE
For single row installation
1m
1m
1m
Front
Front
100-500 mm
800mm
For multi-row installation
1m
1m
1m
1m
1m
800mm
If obstacles are around the outdoor unit, they must be
800mm below the top of the outdoor unit. Otherwise, an
mechanical exhaust device must be added.
A
B
A
B
Front view
(one outdoor unit)
Front view
(two outdoor units
combined)
Front view
(three outdoor units
combined)
D
C
Side view
(one outdoor unit)
A
B
A >45° B >300 mm C >1000 mm D Airflow deflector
39
