Maintenance - Hussmann DSF Installation And Operation Manual

Maintenance

Case Cleaning
To insure long life, proper sanitation and minimum
maintenance costs, the refrigerator should be thoroughly
cleaned frequently. SHUT OFF FAN BEFORE CLEANING:
It can be unplugged within the case, or shut off entire case
at the source. The interior bottom may be wiped with any
domestic soap or detergent based cleaners. Sanitizing
solutions will not harm the interior bottom,
WARNING! DO NOT USE WATER HOSES! A self
contained case empties into an evaporator pan that WILL
OVERFLOW IF TOO MUCH WATER IS INTRODUCED
during cleaning
• USE WATER AND A MILD DETERGENT FOR THE
EXTERIOR ONLY
• Wipe interior with damp non-abrasive cloth. Soap and
hot water are not enough to kill bacteria; a sanitizing
solution must be included with each cleaning process to
eliminate bacteria.
• Clean any visible debris surrounding or on top of the
drain location. The drain is located under the deck pans.
• DO NOT USE A CHLORINATED CLEANER ON ANY
SURFACE.
• DO NOT USE ABRASIVES OR STEEL WOOL SCOUR-
ING PADS (these will mar the finish)
• DO NOT USE A CLEANING OR SANITIZING SOLU-
TION THAT HAS AN OIL BASE (these will dissolve the
butyl sealants) or an AMMONIA BASE (this will corrode
the copper components of the case)
Service
• To maintain good refrigeration performance, a refrig-
eration service person should be called periodically (at
least twice a year) to clean the discharge honeycomb
and remove any accumulated dirt from the condenser
coil and condensate evaporator pan on self-contained
models. POOR CIRCULATION OF AIR THROUGH THE
CONDENSER COIL WILL RESULT IN POOR REFRIG-
ERATION PERFORMANCE.
• Dirt accumulation inside the condensate evaporator pan
will reduce the pan's capacity and affect the efficiency of
the heater causing a burned out heater and an overflow
of defrost water onto the store floor.
Tips and Troubleshooting
Before calling for service:
• Check power. Ensure reliable electrical power supply to
the equipment
• Check shelf loading. Overstocking will adversely affect
case performance.
• If frost is collecting on fixture or product, verify that store
Humidity Control is working properly, and that no outside
doors/windows allow moisture into store.
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