DC Inverter Chiller
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2.5 Drainage
Drainage ditch should be provided to allow drainage of condensate that may form on the air side heat exchanger when
the unit is running in heating mode. The drainage should ensure that condensate is directed away from roadways and
footpaths, especially in locations where the climate is such that condensate may freeze.
Figure 3-2.3: Drainage hole
80
Concrete
Cement mortar
Drainage channel
2.6 Spacing
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. The influence of adjacent structures on the airflow around the unit
should also be taken into consideration. For units installed in locations that may be experience high wind speeds, measures
such as installing fences should be taken to protect the units from turbulent flows that may disturb the air entering/leaving
the units. When fencing or other forms of wind protection are installed, the minimum spacing requirements detailed in
Figure 3-2.4 should still be observed.
Figure 3-2.4: Installation with obstacl
es
Single unit
installation
A
B
D
C
G
Input of airflow
Input of airflow
Input of airflow
Input of airflow
Main unit
Main unit
Multiple
units
installation
A
B
C
D
Input of airflow
Main unit
Main unit
Main unit
Main unit
Main unit
Main unit
Main unit
Main unit
Main unit
F
E
E
E
E
E
E
F
F
F
Input of airflow
