ENG
3.4.8
Condensate treatment
ATTENTION
Damage to the switch cabinet components by formation of condensate
Switch cabinet interior temperatures below the dew point of the ambient air or damaged switch cabinet seals can lead to
excessive condensate formation.
•
Check the switch cabinet seals regularly to avoid excessive formation of condensate due to penetrating ambient air.
•
Install a door contact switch to reduce formation of condensate when the switch cabinet is open.
Arrangement of refrigeration circuits
Fig. 8: Refrigeration circuits and condensate separation
The main feature of the DTT-cooling units is the repositioning of the refrigeration circuits.
The cold circuit (1) is on top and the warm circuit (5) on the bottom. No cold bridge (2) to the switch cabinet (3) can occur and
therefore no condensate forms in the switch cabinet interior (4), see figure Refrigeration circuits.
The evaporator unit (6) is located in the upper section of the DTT-cooling unit so that vertical separation of condensate is
possible. The condensate has no contact with the switch cabinet.
For safety reasons, the condensate evaporator has a drain nozzle with drain hose (7) through which the excess condensate is
discharged from the unit.
The condensate discharged by the drain hose (7) can be collected by the condensate collection bottle available as an accessory
(see "Spare parts and accessories", Page 75).
Operating Manual | Roof-mounted Cooling Unit | Multi Controller (MC) – 400 / 460 V, 3~ | 086100033c
Condensate separation
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