Data Sheet

Technical System Catalogue/Climate control
Air/water heat exchanger
3 - 44
It is important to ensure “even” air circulation inside the
enclosure. Air inlet and outlet openings in the internal circuit
must on no account be obstructed by electrical installations.
This would prevent air from circulating inside the enclosure.
Under such conditions, the cooling capacity of the device
would not be adequately utilised. A clearance of > 200 mm
must be guaranteed.
Note:
Wall-mounted cooling units should never be fitted directly
behind the mounting plate. Active power components are
located on the front of the mounting plates. The heat
exchanger would then operate in its own air short-circuit.
If it is impossible to install the device any other way, appro-
priate air baffle plates should be used, and air inlet and out-
let openings should be provided in the mounting plate.
200
Free air circulation
When using roof-mounted units, particular attention should
be paid to the air flow from blowers built into electronic com-
ponents such as frequency converters and other drive units.
Internal circuit –
Roof-mounted units
Flow conditions
When installing self-ventilating components and electronic
parts, please observe the following:
Blowers and axial fans whose air flow is in the opposite direc-
tion to the cold air flow from the heat exchangers may cause
a short-circuit and prevent adequate climate control.
Note:
Never direct the chilled air flow at active components.
Internal circuit –
Wall-mounted units
Flow conditions