COMPONENT INFORMATION
2-15
EVAPORATOR FAN NOTE: The evaporator fan
is turned off when any door or drawer is opened.
The fan is also off during a defrost and post-
defrost period (fan delay period).
ALL REFRIGERATOR (700TR, 700BR)
When the Upper Cabinet Zone in the 700TR or the
Upper Drawer Zone in the 700BR calls for cool-
ing, the evaporator temperature is checked. If the
evaporator temperature is less than 40°F the com-
pressor remains off, but the evaporator fan is start-
ed. With the evaporator fan running the tempera-
ture of the evaporator will rise. When the evapo-
rator temperature rises above 40°F, the compressor
is started.
NOTE: A defective evaporator thermistor will
result in a 10 minute fan delay before the compres-
sor can start.
COMBINATION REFRIGERATOR / FREEZER
(700TC/I)
When the freezer drawer zone calls for cooling,
the evaporator fan cycles on with the compressor,
except after a defrost. After a defrost the evapora-
tor fan will not run until the evaporator tempera-
ture falls below 35°F. This is to avoid circulating
warmer moist air from the evaporator condensa-
tion.
If the freezer drawer zone reaches its temperature
set-point, but the upper cabinet refrigerator zone
has not reached its temperature set-point, the com-
pressor is cycled off, but the evaporator fan will
continue to run.
NOTE: A defective evaporator sensor will result
in a five minute fan delay before the compressor
can start.
ALL FREEZER (700TF/I, 700BF/I)
The evaporator fan cycles on and off with the
compressor, except after defrost. After defrost the
evaporator fan will not run until the evaporator
temperature falls below 35°F. This is to avoid cir-
culating warmer moist air from the evaporator
condensation.
NOTE: A defective evaporator sensor will result
in a five minute fan delay before the compressor
can start.
Defrost Operation
REFRIGERATOR MODELS (700TR, 700BR)
The 700TR and 700BR utilize an "off-cycle
defrost". When the unit reaches the temperature
setpoint, the compressor cycles off and the evapo-
rator begins to defrost.
NOTE: If refrigerator runs 100% for six hours or
more (due to a door left open), compressor will be
turned off. This will allow for evaporator defrost-
ing.
FREEZER MODELS (700TC/I, 700TF/I, 700BF/I)
The electronic control in the 700TC/I, 700TF/I and
700BF/I regulates defrost intervals with what is
called "Adaptive Defrost". With adaptive defrost,
the length of time that the heater actually stays on
to defrost the evaporator, and satisfy the defrost
terminator, is sensed by the evaporator thermistor.
The length of heater ON time determines the num-
ber of hours before the next defrost.
MANUAL DEFROST
To initiate a manual defrost, turn OFF master
power switch for 10 seconds then back ON. The
control will then initiate a defrost upon power up,
provided the evaporator temperature is below
20°F.
NOTE: If the evaporator is warmer than 20°F,
the evaporator thermistor must be disconnected
before initiating defrost.
The compressor will not cycle back on for 20 min-
utes (20 minute defrost dwell) if the evaporator
thermistor has been disconnected (TC/I, TF/I, BFI
Only).
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