Version 5.2_2022 (January 26, 2022)
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Be careful when changing filters. Chemical, biological or microbiological substances may
have collected in the filter. These substances can be hazardous to health. They may also end
up as residue at the bottom of the section. Always use personal protective equipment (safety
glasses, gloves and P2 dust mask), never throw filters around, pack the dirty filters before
moving them (in a box or bag). In very dry and dusty conditions, it may be desirable to
moisten the filters slightly before removing them. Always dispose of used filters as chemical
waste.
5.4.
Cooling battery
A three-way cold water system is mounted on the front of the Aqua Cool. This system ensures that the
desired air supply conditions of the unit are achieved.
The three-way mixing system is suitable for water as a water/glycol mixture. This can be either hot or cold.
The flow rate can be regulated by means of valves via the unit control system.
CAUTION!
A water/glycol mixture should always be used when there is a risk of frost.
The three-way mixing valve of the cooling battery is controlled by PLC.
5.4.1.
Maintenance 5.4 & 5.5
The cooling coil front (inlet) unit can be reached by removing the filters. You should check the coil annually
for contaminants, and clean the coil if necessary using a high pressure water jet or compressed air, avoiding
damage to the fins. Repair any damage with a so-called 'Fin comb'.
When servicing coils, be aware of the hazards of the medium used; a neutral temperature is desired and the
medium must be sufficiently cooled. Even after switching off the heater (or cooler), the coil may remain hot
(or cold) for some time.
CAUTION!
When disconnecting both the coil and the defrosting heater, the coil must be drained on the
water side or stored frost-free.
5.5.
Drip tray
The drip tray below the cooler collects the condensation water that runs off the cooler, including dirt.
5.5.1.
Drip tray maintenance
Dirt, possibly including substances of a biological or microbiological nature, collects in the drip trays of
coolers. These substances may pose a threat to health. Therefore, be careful when cleaning these drip
trays. The drip tray under the cooler must be checked for dirt and cleaned if necessary.
5.6.
Droplet eliminator/separator
The droplet eliminator is mounted at the end of the drip tray to keep condensation away from the cooling
element. The droplet eliminator guides this to the drip tray.
5.6.1.
Droplet eliminator maintenance
Check the droplet eliminator for contamination every six months, dismantle and clean if necessary.
