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cyberair 3pro cw2 original instructions
EN/06.2017/G18D © STULZ GmbH – all rights reserved
All maintenance work has to be carried out under strict compliance with the country-specific accident pre-
vention 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.
Procedure instructions
• carry out work on the system only when it is shut down.
• switch off the A/C unit at the controller and at 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.
7. Maintenance
7.1 Safety instructions
7.2 Maintenance intervals
Component
Maintenance interval
quarterly
half-yearly
yearly
Air circuit
Heat exchanger
x
Fan
x
Air filter
x
Water circuit
Tightness
x
Unit housing
Electrical box
x
Unit interior
x
