Integrated
Integrated
(700-
(700-
3
3
T
T
ALL)
ALL)
Series
Series
Electronic Control System
3-13
#3758412 - Revision B - December, 2006
Control Condenser Fan Run
In all models except the 700TF/I-3, the microprocessor senses the 115 volt output supplied to both compressors. If
either compressor is running, a signal is sent to the condenser fan relay on the control board to close, supplying
power to the condenser fan. If both compressors are off, the condenser fan is off. (See Figure 3-22)
NOTE:
There is only one compressor on the model 700TF/I-3. The condenser fan cycles with this single compressor,
which along with the evaporator fan, will cycle off during defrost and may also cycle off for short periods of time if
the ambient temperature is low enough.
Figure 3-22. 700TC/I-3 Signal Trace Schematic (High Voltage) of Condenser Fan Operation
J6
J5
J3
E2 E7 E10 E6
J2
J1
J7
J4
HIGH VOLTAGE
CONDENSER
FAN MOTOR
FREEZER
OVERLOAD
PROTECTOR
NEUT
115 VOLTS
60 CYCLES
L1
REFRIGERATOR
OVERLOAD
PROTECTOR
FREEZER
FAN
SWITCHES
FREEZER
COMPRESSOR
STARTING
RELAY
FREEZER
FAN MOTOR
RUNNING
CAPACITOR
REFRIGERATOR
COMPRESSOR
REFRIGERATOR
FAN SWITCH
REFRIGERATOR
FAN MOTOR
WHITE
GRAY
BLACK
PURPLE
WHITE/RED
WHITE
PURPLE
RED
RED
STARTING
RELAY
RUNNING
CAPACITOR
(WHEN USED)
(WHEN USED)
M
M
M
M
M
Power supplied to
condenser fan
motor if one or
both compressors
are running
Summary of Contents for 700TC-3
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