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F18 Series Service and Installation Manual
7
For customer service, call (800) 733-8829, (800) 773-8821, Fax (989) 773-3210, www.delfield.com
Delfield
™
®
Care and Cleaning
Cleaning the cabinet
The interior and exterior can be cleaned using soap and warm
water. If this is not sufficient, try ammonia and water or non-
abrasive liquid cleaner. When cleaning the exterior, always rub
with the “grain” of the stainless steel to avoid marring the fin-
ish. Do not use an abrasive cleaner because it will scratch the
stainless steel and plastic.
The interior of the cabinet should be cleaned daily with a non-
abrasive cleaner and a nonabrasive pad. If necessary, a mild
abrasive may be used on the interior of the pans only. Never
use steel wool. No drains are provided with rails, after defrost-
ing water will accumulate in the rail. This will need to be
cleaned out thoroughly before restarting the rail as it will freeze
and severely reduce the efficiency of the rail.
Cleaning the condenser
In order to maintain proper refrigeration performance, the
condenser fins must be cleaned of dust, dirt and
grease regularly. It is recommended that this be
done at least every three months. If conditions
are such that the condenser is totally blocked
in three months, the frequency of cleaning should be
increased. Clean the condenser with a vacuum cleaner or
stiff brush. If extremely dirty, a commercially available con-
denser cleaner may be required.
Cleaning door gaskets
Door gaskets should be cleaned as required to maintain their
ability to seal properly. Do not use sharp tools or knives to
scrape the bellows as this may tear the gasket and eliminate
its ability to seal. A soft bristle brush and solution of soap and
water should be all that is required to keep the gaskets clean.
Do not use full strength degreasing agents on the gasket
because they could cause the gasket to become brittle and
crack.
Consistent cleaning of the coil will enhance the
operation of the unit by reducing energy consump-
tion as well as extend the life of the compressor.
Preventing blower coil corrosion
To help prevent corrosion of the blower coil, store all acidic
items, such as pickles and tomatoes, in sealable containers.
Immediately wipe up all spills of items.
Pressure Control Settings
Factory recommended low-pressure control settings are:
HFC-404A refrigerators: 85# cut-in and 65# cut-out to
maintain approximate interior
temperature of 38°F.
Differential setting of 20#.
HFC-404A freezers: 32# cut-in and 8# cut-out to
maintain approximate interior
temperature of 0°F to 5°F.
Differential setting of 24#.
HFC-404A refrigerators with LiquiTec Rail:
20# cut-in and 10# cut-out to
Differential setting of 10#
Temperature control for
LiquiTec Rail, 25°F cut in and
18°F cut-out.
Pressure control settings are measured in
pounds, not fahrenheit.