Wolf Sub-Zero ICB400 Series Service Manual page 22

International W
International W
FUNCTION OF THE WINE STORAGE ELECTRONIC CONTROL SYSTEM
The following pages explain monitoring, regulating and controlling functions of the electronic control system. In most
cases signal traces for the ICB424 wiring schematic are used to show current flow for functions being explained.
TO AVOID ELECTRIC SHOCK, POWER TO THE UNIT MUST BE DISCONNECTED WHENEVER ACCESSING
AND/OR REMOVING COMPONENTS POWERED BY ELECTRICITY OR COMPONENTS NEAR OTHER ELEC-
TRICAL COMPONENTS.
EVEN WHEN UNIT IS SWITCHED OFF, AC POWER IS STILL PRESENT AT THE CONTROL BOARD.
Supply Power to the Lighting System
When the unit is plugged in, a continuous 230 Volts AC is supplied to the lighting system, making it possible to ener-
gize the lights 100% of the time, even if the door is closed.
can also be disabled for observance of certain religious days,
normal operation, with 230 Volts AC supplied to the unit.
ELECTRIC SHOCK HAZARD. 230 VOLTS AC IS STILL PRESENT AT THE CONTROL BOARD AND LIGHT
SWITCH WHEN LIGHTS ARE DISABLED.
J1
J8
WINE
CONTROL
BOARD
BLACK
ine Storage
ine Storage
L1 NEUT
230 VOLTS
60 CYCLES
1
J2
8
1
2
BLUE
J3
PINK
14
E2
E1
E3
GRAY
Figure 3-15. Lighting System Signal Trace (Normal Operation)
Series
Series
(ICB400)
(ICB400)
(See Lighting System ON/OFF).
(See Sabbath Mode).
(See Figure 3-15)
WHITE
ORANGE
N.C.
BROWN ORANGE
PINK PINK
N.O.
BLUE BLUE
N.O.
TAN
NOTE: If display lighting is activated, power is sup-
plied to lights, bypassing light switch
OVERLOAD PROTECTOR
WHITE
3-9
Electronic Control System
The lighting system
The illustration below shows
LIGHTS
LIGHTS
UPPER
M
EVAPORATOR FAN MOTORS
LOWER
M
AWECO REF VALVE
680 Ω
CONDENSER FAN MOTOR
M
COMPRESSOR
STARTING RELAY
M
COMPRESSOR
7011544 - Revision A - November, 2008