Electronic Control System
Integrated
(700-
3
BASE)
Series
3-12
#3758424 - Revision B - December, 2005
Regulate Refrigerator Zone Temperature (700BCI-3)
When the thermistor in refrigerator compartment reaches high off-set temperature, calling for cooling, the refrigerator
compartment fan is energized and microprocessor sends an 18 Volt pulse signal to the air baffle control to open,
regardless of operational state of the compressor. Whenever the fan is energized, the microprocessor repeats send-
ing a pulse signal every 5 minutes to the air baffle control to open. (See Figure 3-20)
If either drawer is opened while the refrigerator compartment fan is operating, the microprocessor will detect power
to the lights and cut power to the fan.
When thermistor in refrigerator compartment reaches low off-set temperature, power to refrigerator compartment fan
is cut and micro-
processor sends an
18 Volt pulse signal
to the air baffle con-
trol to close. When
refrigerator compart-
ment fan is off, micro-
processor repeats
sending a pulse sig-
nal every 5 minutes
to the air baffle con-
trol to close.
Though compartment
air temperatures fluc-
tuates, the LCD dis-
plays average tem-
perature.
NOTE:
If compart-
ment temperature
exceeds either high
or low offset (Ex:
drawer is left open),
temperature display
will change by one
degree per minute.
NOTE:
If refrigerator
compartment thermis-
tor is faulty, compart-
ment fan defaults to
20 minutes ON, 40
minutes OFF cycling,
EE appears in right of
LCD, SERVICE will
flash and Error Code
05 will be logged.
NOTE:
When in
Sabbath Mode, refrig-
erator compartment
thermistor still con-
trols fan operation
except there is a ran-
dom 15 to 25 second
delay before the fan
is energized.
Figure 3-20. 700BCI-3 Signal Trace - Regulate Refrigerator Zone
REF (TOP)
DRAWER LIGHT
YELLOW
REF LIGHT
SWITCH
ORANGE
60 CYCLES
BLACK
L1
GRAY
NEUTRAL
WHITE
REF FAN
MOTOR
WHITE
HIGH VOLTAGE SCHEMATIC
115 VOLTS
THERMISTOR UPPER
DRAWER/REFRIGERATOR
DISPLAY BOARD
REF AIR DUCT
BAFFLE
LOW VOLTAGE SCHEMATIC
BLUE W/YELLOW STRIPE
BLUE W/YELLOW STRIPE
MAIN BOARD
YELLOW W/BLACK STRIPE
YELLOW W/RED STRIPE
YELLOW W/WHITE
PIN 1
PIN 1
PIN 1
PIN 1
PIN 1
PIN 1
PIN 1
MAIN BOARD
PIN 1
PIN 1
PIN 1
PIN 1
PIN 1
MEMBRANE KEYPAD
WHITE
ORANGE
ORANGE
J3
J5
P4
P3
P1
P2
J6
J4
J2
J3
J2
DISPLAY
J5
J3
J4
J6
P2
J2
P1
P3
P4
M
M
M
M
1. Thermistor at high off-set
temp. calling for cooling.
2. No power to ref. light.
3. Ref. fan energized.
4. Pulse signal to air baffle
control every 5 minutes.
Содержание 700-3 BASE
Страница 2: ......
Страница 12: ...Installation Information Integrated 700 3 BASE Series 2 4 3758424 Revision B December 2005 ...
Страница 40: ...Electronic Control System Integrated 700 3 BASE Series 3 28 3758424 Revision B December 2005 ...
Страница 48: ...Sealed System Information Integrated 700 3 BASE Series 4 8 3758424 Revision B December 2005 ...
Страница 52: ...Airflow Fan Blade Spacing Integrated 700 3 BASE Series 5 4 3758424 Revision B December 2005 ...
Страница 58: ...Icemaker Information Integrated 700 3 BASE Series 6 6 3758424 Revision B December 2005 ...
Страница 101: ...Technical Data Integrated 700 3 BASE Series 9 1 3758424 Revision B December 2005 SECTION 9 TECHNICAL DATA ...
Страница 114: ...Wire Diagrams Schematics Integrated 700 3 BASE Series 10 10 3758424 Revision B December 2005 ...