Wolf Sub-Zero ICB400 Series Service Manual page 36

International W
International W
MODEL ICB427R REFRIGERATOR SECTION ELECTRONIC CONTROL SYSTEM OVERVIEW
This page contains the wiring schematic for the refrigerator section of the model ICB427R. Input operations for the
electronic control system are performed at the control panel (located inside the upper drawer), with monitoring, regu-
lating and controlling functions taking place at the main control board. Temperatures and possible problems with the
unit are shown in the control panel display. The entire electronic control system is described in greater detail on the
following pages.
NOTE: For more detailed electrical diagrams refer to the wiring diagram and schematic supplied with the unit.
ORANGE
J2
J6
MAIN
J4
CONTROL
BOARD
J5
THERMISTER
CABINET
DRAWER
CONTROL
ine Storage
ine Storage
HIGH VOLTAGE
NEUTRAL WHITE
P4
WHITE
BLACK
PURPLE
P3
BLACK
P1
PURPLE
P2
BLUE
RED
J3
6 5 4
1 3
DPDT RELAY
NEUTRAL WHITE
ORANGE
LOW VOLTAGE
BLUE W/ WHITE
BLUE W/ WHITE
MAIN
CONTROL
BOARD
BLACK
WHITE
RED
YELLOW
ORANGE
BLUE
Figure 3-42. ICB427R Wiring Schematic
Series
Series
(ICB400)
(ICB400)
220-240 VOLTS
L1 NEUT
50/60 CYCLES
OVERLOAD
PROTECTOR
RED
DOOR SWITCH
YELLOW
DOOR SWITCH
ORANGE
3-23
Electronic Control System
NEUTRAL WHITE
CONDENSER FAN MOTOR
M
MULLION HEATER
COMPRESSOR
STARTING RELAY
M
COMPRESSOR
EVAPORATOR FAN MOTOR
M
TOP DRAWER
LIGHTS
LOWER DRAWER
LIGHTS
BLUE /W BLACK
BLUE /W BLACK
THERMISTER
EVAPORATOR
7011544 - Revision A - November, 2008