STULZ CyberRow DX Series Installation, Operation & Maintenance Manual
5-1
5.0 MAINTENANCE
5.1 Periodic General Maintenance
Systematic, periodic general maintenance of the
CyberRow
unit is required for optimum system
performance. General maintenance should include,
but is not limited to the following: replacing fi lters,
tightening electrical connections, checking the
condensate pans and drain line to ensure they
are free of debris, cleaning the interior of the unit,
inspecting the units’ components visually, checking
level of refrigerant and ensuring no moisture is in the
refrigerant IF APPLICABLE.
Use copies of the Periodic General Maintenance
Checklist in this manual (see Appendix A) to re-
cord periodic general maintenance inspections. For
assistance, contact STULZ Product Support. Ensure
adherence to all safety statements while performing
any type of maintenance.
WARNING
This equipment should be serviced and repaired
by a journeyman or a qualifi ed refrigeration
technician only.
WARNING
This unit employs high voltage equipment with
rotating components. Exercise extreme care to
avoid accidents and ensure proper operation.
Hazardous voltage will still be present inside the
electric box at the motor start protectors and circuit
breakers, even with the unit turned off at the micro-
processor controller. To isolate the unit for mainte-
nance, turn off power at the main power disconnect
switch. Always disconnect main power prior to per-
forming any service or repairs.
WARNING
Turn off power to the unit unless you are
performing tests that require power. With
power and controls energized, the unit could
begin operating automatically at any time. To
prevent personal injury, stay clear of rotating
components as automatic controls may start
them unexpectedly.
5.1.1 Filters
The fi lter is usually the most neglected item in an air
conditioning system. To maintain effi cient operation,
the fi lter should be checked every 3 to 6 months and
cleaned or replaced as required.
NOTE
Conditions of spaces vary. Extremely dusty
environments may require more frequent fi lter
maintenance.
The air fi lters are located behind the air intake grille
at the rear of the cabinet. To access the fi lters,
unlatch the rear access panel at the top and remove
it from the cabinet.
5.1.1.1 Cleanable
Filters
Cleanable fi lters are spring loaded in the holding
trays in the access panel. Using a fl at head
screwdriver, gently push the fi lters to one side and
remove the old fi lters from the trays (Figure 19).
Figure 19- Cleanable Filters
Clean the fi lter media using a vacuum cleaner, low
pressure compressed air or rinse with water. A mild
detergent such as dish washing liquid may be used.
DO not use solvents or cleaning agents. Replace
the fi lters every 2 to 3 years when they become too
fl imsy.
Summary of Contents for CyberRow DX CRS-042-G
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