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 air flow.
Product Load
should be a minimum of an inch off of back wall to allow
supply air to circulate and not freeze product at the back wall. Some items
may need more clearance if they are sensitive to freezing, as supply air
temperature should get below freezing.
If equipped, check that condenser coil air filter (attached to front grill) has
been cleaned.
Check that the condenser coil is clean.
Check to see that the control is turned on.
Control Display Is Flashing -
If the control is flashing all of its lights, it is
likely that you have a grounding issue with the power source. Verify that
the unit is properly grounded.
Check to see if the compressor run indicator is on, calling for cooling.
Defrost Mode Is the unit entering into defrost too often, or staying in defrost
to long? Our cases typically defrost every 6 to 8 hours as long as the
evaporator sensor is below defrost termination temperature of approximately
45°F. There is also a defrost on demand feature that can supersede the
normal defrost interval as needed. – 30 minute maximum defrost duration.
TEMPERATURE ISSUES
RSSM/RSSD/RSSL – ERSSHP – TSSM - NSSM
LMD/LMDM – LPRSS/ELPRSS
OPEN AIR MERCHANDISERS
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