8 Operating Instructions
Refi lling of the tank
Automatic refi ll (Option)
Tap/fresh water feed connected to water supply port guarantees constant level in the tank, so that eva-
porator always remains submerged.
Manual refi ll (Option)
Filling of water manually through water inlet port or directly into tank.
The waterlevel can be observed by the water sightglass which can be seen from the outside of the
housing .
Ensure that the evaporator is submerged.
Important:
Prior to fi lling of the tank it is esessential to test the water quality and if required carry out wa-
tertreatment (refer to chapter 7).
To avoid corrosion at the evaporator, we recommend to use water with a low salt content (chloride content
< 20 mg/l). To avoid thickening of the tank water, we recommend to replace the system content every 1
to 3 months an increasing evaporation of the tank water means an increasing chloride content ( please
refer to chapter 7).
For chillers running at temperatures lower than freezing point, a water/glycol mixture at the
appropriate ratio should be fi lled.
30% Glycol up to –10°C, at lower temperatures please refer to the manufacturer.
The tank should be fi lled to the max. level of the water level tube (Option).
Prior to start up it is always necessary to prime the pump with the medium to be transported.
Prior to start up the pump must be bled in order to remove air from the pump.
3 INSTALLATION AND INITIAL OPERATION
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