17
PREVENTIVE MAINTENANCE [TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY]
PREVENTIVE
MAINTENANCE
FREQ.
INSTRUCTIONS
Case Exterior
Quarterly Condensing Coil:
Remove panel to access area by lifting up and off or by screw
removal (depending on case).
Use air pressure or industrial strength vacuum; clean dust and dirt that
may collect on the Condenser Coil.
Caution! Airborne dust can contaminating food!
Use wet rags to
cover area where air pressure is blowing.
Warning! Coil fins are sharp. Handle with care!
Return panel to case.
Quarterly Refrigeration Package/Compressor Area:
Caution! Be certain to
disconnect power from case before cleaning Refrigeration Package!
Warning! Evaporator Pan Is HOT! Disconnect power from case and
allow to cool before cleaning evaporator pan!
Slide/Roll compressor package out from under case.
See
REFRIGERATION FUNDAMENTALS
section for in-depth
instructions on accessing the evaporator pan.
Use a scrub-brush and a de-scaling solution such as CLR® (to
prevent corrosion, lime and rust). Follow instructions as to proper
dilution, safety precautions and scrubbing method.
Electric heater coil evaporator pans can be removed and cleaned.
After thoroughly cleaning pan with scrub-brush and solution, rinse
thoroughly with clean water (in spray bottle) and wipe dry with sponge
or paper towel.
Use moist cloth to wipe off dust & debris that collects on various parts
(fans, sight glass, overflow pan, etc.).
Slide refrigeration assembly back under case.
Replace front panel and lower grille via hooks (no screws required).
Quarterly
Under Case Cleaning:
Once refrigeration package is clear of unit,
vacuum under case to remove dust and dirt that may collect under case.
Case Interior
Quarterly Tub Area [Evaporator Coil, Drain, Fans, Brackets]:
Caution! Disconnect power from the case before cleaning tub, coil,
fan, motor and drain area!
Use vacuum to clean entire area.
After vacuuming, clean area with warm water, clean cloth, and mild
soap solution.
Remove any debris that may clog drain.
Wipe down fan blades, motors and brackets with moist cloth.
Quarterly
Honeycomb:
Check honeycomb air diffuser to determine if it is dirty.
If dirty, remove from case. See
MAINTENANCE FUNDAMENTALS -
HONEYCOMB AIR DIFFUSERS [SERVICE TECHNICIANS ONLY]
section of this manual (next page) for cleaning specifics.
WARNING! TURN OFF CASE BEFORE PERFORMING PREVENTIVE MAINTENANCE!
