Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 886

FDC-HKX
19.5.3 Installation of outdoor unit
(1) Selection of installation location
(a) A place where air will not be stagnant.
(b) A place where the exhaust air will not be shortcycled.
(c) A place with enough space for air flow around the unit.
(d) A place where the unit will not be affected by other heat sources.
(when there are multiple units installed or when units have another heat source)
(e) A void installing the unit in places that are subject to sea air, sulfureous gas of the type found in hot springs, or any other
corrosive or flammable gas.
(f) A place where smooth drainage of rain water and water formed by defrosting is acceptable.
(g) In heating operation, snow deposit on the heat-exchanger of outdoor unit must be prevented for keeping the normal
performance capacity.
● Snow-hood on outdoor unit as in drawing, will reduce the frequency of defrost operation.
When installing the snow hood, take care so that their outlet of the snow hood will not face directly into the most windy
direction.
● Design the base higher than possible snow deposit.
(h) A place where air outlet port is not exposed to strong wind.)
(2) Installation space
A place with enough space for air inlet, air outlet and service space.
(a) Independent installation
1) Standard oblique blow or up blow
Wall height H3
Air inlet
L2
(Service space)
Wall height H1
Installation
example I
Dimensions
L Open
1
L 0
2
L 300
3
L Open
4
H -
1
H
Not limited
2
H Not limited
3
H
-
4
Note (1) When the wall heights H1 and H3 exceed the limited value, keep dimensions for L1 and L3 as shown below.
L1 = H1 – 500 (In the case of side blow, H1 1,000 irrespective of L1 dimension)
L3 = 300 + (H3-700) / 2
However, there is no limitation in wall height H3 if L3 exceeds 600.
884
L3
L4
L1
(Unit : mm)
II III
Open 500
0 0
300 300
500 0
- 1000 or less
Not limited Not limited
Not limited 700 or less
Not limited Not limited
2) Side blow
Wall height H3
Air inlet L3
L2 L4
(Service space)
L1
Wall height H1