Instruction Manual ZHK
118/140
V07-21.0
Droplet eliminator
Check the droplet eliminator about once per year for contamination. Remove fins and clean it if
necessary. Please make sure that the fins are installed properly and are not bent or have popped
out of the frame.
NOTICE!
Pollutants can cause poor performance of the AHU as well as damage to the de-
vice, air functioning and components.
Steam Coil
Check automatic vapor-supply-stop and automatic-fan-run for a few minutes, after the AHU is shut
down.
9.4.2 Refrigerant
For the medium refrigerant (direct evaporator or condenser coil) the same actions apply as de-
scribed in
chapter 9.4.1
). For additional actions to be taken see
chapter
9.4.3 Electric Heater
-
When working on the electric heater, refer to the instructions in
chapter 2 (Safety instruc-
.
-
Check electric heaters for dirt and corrosion, clean heating elements if necessary.
-
Check built-in safety devices and electrical parts for proper functioning.
9.5 Humidifiers
9.5.1 General indications
The instructions of
chapter 8.1.6.1
are to be applied analogously.
The following instructions are generally stated and apply, as far as the respective component is
available, in the present humidification system.
-
The maintenance of the pump must be carried out according to the pump
manufacturer’s
in-
structions.
-
Regular cleaning of all components, largely determines the effective levels of hygiene of the
entire system.
-
When unused for long periods, the water must be released (for hygiene reasons) and the drain
must be cleaned properly. The pump must be drained as well.
-
Fill the siphon with clean water.
-
Depending on water pollution, water hardness and water treatment, impurities and lime depos-
its must be removed from the washer: Severe calcification of components such as nozzles and
droplet eliminators indicate significantly insufficient water treatment. Calcification of nozzles
and droplet eliminators can be removed by treatment with dilute formic acid. After treatment,
rinse well with clean water. Calcifications at droplet eliminators and straighteners made of
PPTV may be removed through slight bending of the fins after drying and dismantling of re-
spective components.
-
Replace corroded or damaged droplet eliminator fins.
-
Check sieves and strainers for dirt deposits and clean if necessary.
-
Check outlet, overflow, U-trap and water tank for debris and clean if necessary.
Summary of Contents for ZHK
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