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EN/05.2019 © STULZ GmbH – all rights reserved
CYBERHANDLER 2 INSTALLATION, OPERATION AND MAINTENANCE MANUAL
8 Maintenance
8 1
Safety instructions
All maintenance work is to be carried out under strict compliance with the country-specific
accident prevention regulations. In particular we refer to the accident prevention regulations for
electrical installations, refrigerating machines and equipment. Non-compliance with the safety
instructions can endanger people and the environment. Maintenance work is only to be carried
out on the units by authorized and qualified specialist staff.
Work on the system must always only be carried out when it is shut down. To do this,
the unit must be switched off at the controller and at the master switch. A „DO NOT
SWITCH ON“ warning sign must be displayed.
Live electrical components are to be switched to de-energized and checked to ensure
that they are in the de-energized state
Activity
Action, if required
Maintenance Interval
1
month
3
month
6
month
12
mont
DAMPERS
Check for contamination, damage and
corrosion
Clean and repair
x
Check mechanical function
Repair
x
Check actuators
Repair / replace
x
AIR FILTERS
Check for damage, corrosion and odors
Replace the filter(s) if needed
x
Check if the maximal pressure drop across
the filter stage is exceeded (alarm on the
controller)
Replace the filter
x*
*filters must be replaced when the clogged filter alarm is showed and at least every 6 months
AIR/AIR PLATE HEAT EXCHANGER
Check for contamination, damage and
corrosion
Clean and repair
x
COOLING / HEATING COIL
Check for contamination, damage and
corrosion
Clean and repair
x
Check Drip tray (cooling and evaporator
coils)
Clean
x
Check water inlet/outlet (water coils)
Clean
x
Check Siphon function and water level of
siphon (Cooling and evaporator coils)
Clean and top-up
x
Check flow control valves (water coils)
Clean and repair/replace
x
8 2
Periodic maintenance
