Instruction Manual ZHK
V07-19.0
109/129
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 for
the correct setting.
Drain pan
Drain pan and drain should be checked for debris and cleaned, if necessary
–
Figure 210:
Cleaning of air coolers
Droplet eliminator
Check the droplet eliminator about once per year for contamination. Remove fins and clean if nec-
essary. Please make sure that the fins are installed properly and are not bent.
Pollutants can cause poor performance of the AHU as well as damage due to
drop flight.
Steam Coil
Check automatic vapor supply stop and automatic fan run for some 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.
clean here
Summary of Contents for ZHK Series
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