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Cooler
(Direct evaporator)
Washer
Commissioning of the unit
Before filling the cooling circuit with refrigerant, take appropriate measures to
ensure that the pipework contains no residual moisture (i.e. by evacuating or
flushing with dry nitrogen).
Check evaporation temperature: the evaporation temperature may not fall below
+2°C, as there is the danger that at evaporation temperatures of < +2°C the
heat exchanger may freeze up.
Note: The specified performance can only be achieved with the refrigerant on
which the design was based (R22 or R134a).
Do not let refrigerant escape into the environment. Use suitable suction unit.
- Check pipework and pump for possible leaks
- Check for secure seating of nozzle connection and nozzle
- Check that drain pipe of the drain trap is not blocked
- Fill drain trap with water
- Fill washer trough until water flows into the drain trap
- To check the rotational direction, briefly start the washer pump and correct
the rotational direction, if necessary
- Check power draw of pump motor
Do not allow washer pump to run dry as this will destroy the pump!
Caution
- Switch on supply air fan
- Switch on washer pump
- Adjust float: water level in the trough must be at least 10 mm over the pump
inlet opening and no less than 10 mm below the overflow opening
- if applicable: adjust automatic dry-operation protection and desalination
system (see instructions supplied separately)
Note: Drop eliminators buckle for a limited period due to their production-
related surface structure.
This is not a technical fault!
Gigant
17
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