CONDITION
Case Is Not Holding Temperature
/ Freezing Product
Open Air refrigerated merchandisers are not intended as storage
refrigerators and will not “pull down” room temperature products efficiently.
LOAD CASE INTERIOR WITH PRE-
CHILLED 38°F OR COLDER PRODUCT ONLY
Open Air Display Cases
are subject to air disturbance and due to direct
sunlight and close proximity of heating ducts, grills, radiators, ceiling fans or
main doors. Also avoid locations where the unit is subject to high humidity
such as near cases with water misting or fogging devices.
Check Ambient Conditions of the Location
Most of our cases require a maximum ambient of 75°F / 55% RH (Relative
Humidity) Exceeding either or both can result in temperature issues as the
evaporator coil ices up and restricts airflow.
Product Load
should create a wall all of the way around the shelves to
create a barrier, keeping the cold air inside of the unit. The product should
be a minimum of half an inch off the tower to allow supply air to circulate
and not freeze product at the tower and requires a minimum 2 inches of
clearance above the product. Some items may need more clearance if they
are sensitive to freezing, as supply air temperature during the run cycle
should get well below freezing. Recommended set point is #4 which is
22°F, except for the IMSS120 (failure of the above steps with cause
extended run times, frozen product, the tower and shelves to sweat, icing of
the evaporator coil and potentially water on the floor)
If equipped, check that the condenser coil air filter attached to the inlet base
panel has been cleaned.
Check that the condenser coil is clean.
(example of a restricted condenser
coil vs a clean condenser coil – self-contained)
TEMPERATURE ISSUES
IMSS 60/84/120 – ECSS 40/60
SELF CONTAINED AND REMOTE OPEN AIR MERCHANDISERS
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