Sub-Zero INTEGRATED Series Service Manual page 19

General Information
Control Condenser Fan Run
In all models except the 736TFI, the microprocessor senses the line 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 (not shown).
In the model 736TFI, the condenser fan is powered off the same line as the compressor, so it cycles with the com-
pressor with out the use of a relay on the control board
NOTE: As noted earlier, the drawer circuit signal from the orange/black wire is used to indicated whether a drawer
switch is open or closed; if closed, power is allowed through the fan relay to the evaporator fan motor, so it too will
cycle with the compressor.
HIGH VOLTAGE
BLACK
J5
J7
E2 E7 E10 E6
J4
J3
J2 J1
ORANGE/BLACK
ORANGE
DOOR
LIGHT SWITCH
ORANGE/BLACK
ORANGE/BLACK
DRAWER
LIGHT
SWITCHES
Figure 3-20. 736TFI Signal Trace Schematic of Condenser Fan (plus Compressor and Evap Fan) Wiring
#7015817 - Revision A - January, 2010
INTEGRA
INTEGRA
L1
115 VOLTS
NEUT
60 CYCLES
WHITE
GRAY
Condenser Energized
J6
PURPLE
ORANGE/BLACK
No power to
drawer lights, so
relay switched to
energize fan
LIGHT
ORANGE TERMINATOR
ORANGE/BLACK
WHITE/BLUE
TED
TED
(736 T (736 T all SWS #2970000) all SWS #2970000)
(See Figure 3-20)
WHITE
RED
FREEZER
FAN SWITCH
CONDENSER
FAN MOTOR
M
FREEZER
OVERLOAD
PROTECTOR
3
PURPLE
1
4
FAN CONTROL
2 6
7
8
3-12
SERIES
SERIES
Refrigerator fan energized
RED/BLACK
M
PURPLE
FREEZER
COMPRESSOR
STARTING RELAY
M
RED/BLACK
FREEZER
RELAY
WHITE
Compressor(s)
energized
FREEZER
FAN MOTOR
RUNNING
CAPACITOR
(WHEN USED)