Euroclima ZHK, Manual

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Instruction Manual ZHK
V07-21.0 117/140
9.3.4 Activated carbon filters
If saturation is reached (expiration of the designated operation hours), the activated carbon car-
tridges must be changed. Proceed as followed:
1. Release cartridge from base plate (bayonet fastening).
2. Insert and fix a new filter cartridge.
3. Check tightness of the filter.
9.4 Heat exchangers
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For prolonged standstill periods, we recommend the complete emptying of the heat exchanger.
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At each refill, the heat exchanger must be vented properly.
The manual of the component manufacturer must be read and adhered to for cleaning works.
9.4.1 Medium water / steam
Special maintenance for heat exchangers is not required, only timely cleaning is recommended.
Approximately every three months, depending on the hours of operation and filter maintenance.
The heat exchanger fins should be checked for dust contamination, debris and cleaned if neces-
sary. The piping is to be checked for leaks and integrity.
Cleaning
Cleaning is to be carried out on the mounted state with a strong vacuum cleaner from the dust air-
side. For strongly adhering dust, the heat exchanger can be dismounted and cleaned with water.
Galvanized steel coils can be cleaned with a steam cleaner or by washing the fins with a strong
water jet. A soft brush might help, but be extra careful not to damage the fins.
NOTICE!
The fins of copper-aluminum heat exchangers are particularly sensitive, there-
fore, use, with extra care, water with low-pressure for cleaning. Damaging the
fins by mechanical force leads to premature deterioration of the heat exchanger.
Corrosion spots must be cleaned and protected with zinc dust paint.
Antifreeze protection
Check antifreeze activity before each winter season. Also check the frost protection thermostat to
make sure that the setting is accurate and correct.
Drain pan
The Drain pan and drain should be checked for debris and cleaned, if necessary
–
Figure 220
.
Figure 220:
Cleaning of air coolers
clean here