Sub-Zero 700TR-3 - Page 61

Integrated
Integrated
(700-
(700-
3
3
T
T
ALL)
ALL)
Series
Series
Icemaker Information
6-7
#3758412 - Revision B - December, 2006
MIDSOUTH AND JAPAN-SERVO
ICEMAKER OPERATION
(700TCI-3 AND 736TCI-3 ONLY)
The following series of electrical schematics illustrate a
typical icemaker cycle of operation. Below each
schematic is a diagram indicating the approximate loca-
tion of the ice ejector and ice level arm during the
phase the schematic indicates.
Freeze Phase of Ice Making Cycle (See Figure 6-8)
• The ice mold is filled with water.
• The thermostat is open.
• No icemaker components are energized.
Figure 6-8. The Freeze Phase
APPROXIMATE POSITION
OF ICE EJECTOR AND
ICE LEVEL ARM
DURING OPERATION
115 VOLTS
60 CYCLES
SHUT-OFF SWITCH
THERMOSTAT
MOLD HEATER
WATER
SOLENOID
SOLENOID SWITCH
MOTOR
HOLDING SWITCH
NO
NC
C
NC
NC
NO
NO
C
C
TCO
ICE MOLD
ICE BUCKET
WATER
Start of the First Revolution (See Figure 6-9)
• The water in the ice mold has turned to ice.
• At 15°F (-9°C) ± 3° the thermostat closes.
• The mold heater is energized through the thermo-
stat.
• The drive motor is started through the thermostat
and “normally closed” terminal of the holding
switch.
• The ice ejector begins to turn and the shut-off arm
begins to rise.
Figure 6-9. Start of First Revolution
APPROXIMATE POSITION
OF ICE EJECTOR AND
ICE LEVEL ARM
DURING OPERATION
115 VOLTS
60 CYCLES
SHUT-OFF SWITCH
THERMOSTAT
MOLD HEATER
WATER
SOLENOID
SOLENOID SWITCH
MOTOR
HOLDING SWITCH
NO
NC
C
NC
NC
NO
NO
C
C
TCO
ICE MOLD
ICE BUCKET
ICE