7© STULZ USA – all rights reserved 11.8.22
CYBERWALL™ INSTALLATION, OPERATION AND MAINTENANCE MANUAL
An Exclamation — — symbol in a WARNING or CAUTION statement indicates a general safety alert. A
lightning bolt — — in a WARNING safety statement indicates an electrical shock hazard.
Safety Summary
Prior to performing any installation, operation, maintenance or troubleshooting procedure, read and
understand all instructions, recommendations and guidelines contained within this manual. Certain
maintenance or cleaning procedures may call for the use and handling of chemicals, solvents, or cleansers.
Always refer to the manufacturer’s Safety Data Sheet (SDS) prior to using these materials. Clean parts in a
well-ventilated area. Avoid inhalation of solvent fumes and prolonged exposure of skin to cleaning solvents.
Wash exposed skin thoroughly after contact with solvents.
The following warnings and cautions are applicable to the equipment and operations documented in this
manual.
WARNING
All personnel working on or near equipment should be familiar with hazards associated with electrical
maintenance. Safety placards/stickers have been placed on the unit to call attention to all personal and
equipment damage hazard areas. Never work on electrical equipment unless another person who is
familiar with the operation and hazards ofthe equipment and competent to administer first aid is nearby.
WARNING
This equipment should be serviced and repaired by a journeyman or a qualified refrigeration technician
only.
WARNING
To prevent personal injury, stay clear of rotating components, as automatic controls may start them
unexpectedly. Turn off power to the unit unless you are performing tests that require power. With power
and controls energized, the unit could begin operating at any time.
WARNING
When working on electrical equipment, remove all jewelry, watches, rings, etc.
WARNING
Hazardous voltage will still be present inside the electric box at the motor starter protectors and
circuit breakers, even with the unit turned off at the microprocessor controller. To isolate the unit for
maintenance, turn off power at the main power disconnect switch (see Figure 4 on page 11).
WARNING
Always disconnect the main power supplyto the equipment at the main power disconnect switch before
beginning work on the equipment. A lock-out tag-out procedure should be followed to ensure that power
is not inadvertently reconnected.
WARNING
Do not use chloride based water conditioning additives in the condensate drain pans. This will cause
corrosion to occur on the coil fins.
