22
© STULZ Tecnivel – all rights reserved
EN/02.2021 Technical data subject to modifi cations
Air Handlers Units
ClimaPac Series
6. Maintenance
6.1
Safety instructions
All maintenance work has to be carried out under strict compliance with the country-specifi c 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 qualifi ed specialist staff.
Procedure instructions
• Carry out work on the system only when it is shut down.
• Switch off the unit at the controller and the master switch.
• Display a “DO NOT SWITCH ON“ warning sign.
• Switch off power conducting cables to the unit and secure them against being switched on again.
• Check to ensure that they are in the de-energized state.
6.2
Periodic maintenance
Activity
Action, if requiered
Maintenance Interval
DAMPERS
Check for contamination, damage and
corrosion.
Clean / repair.
6 months
Check mechanical function.
Repair.
6 months
Check actuators.
Repair / replace.
6 months
AIR FILTERS
Check pressure drop across the fi lter
Replace the fi lter when the maximal
allowed pressure drop is exceeded
and at least every 6 months.
1 month*
Check for damage, corrosion and odors.
Replace the fi lter(s) if needed.
3 months
*Indicative interval, depends on the level of outdoor air pollution.
COUNTERFLOW HEAT EXCHANGER
Check for contamination, damage and
corrosion.
Clean / repair.
6 months*
ROTARY HEAT EXCHANGER
Check for contamination, damage and
corrosion
Clean / repair
12 months*
Check tension of V-belt’s
Re-tension / shorten / replace
12 months*
*6 months for sorption wheel