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Model 506 (UC Ice Maker)
Model 506 (UC Ice Maker)
Electrical System
The units electrical system provides power for the
refrigeration and water systems to operate, and controls
the operational cycling of the ice maker.
115
60 HERTZ
VOLTS
L
2
1
OFF
CLEAN
6
ON
3
SERVICE
SWITCH
RECEPTACLE
BIN
THERMO-
STAT
1
3
2
EVAPORATOR
THERMOSTAT
OVERLOAD
COMPRESSOR
TRANSFORMER
115 V
8.5 V
DOOR SWITCH
CUTTER GRID
Figure 3-11. Electrical System
Unit with an FSP condensate pump installed.
115
60 HERTZ
VOLTS
L
2
1
OFF
CLEAN
6
ON
3
SERVICE
SWITCH
RECEPTACLE
BIN
THERMO-
STAT
1
3
2
EVAPORATOR
THERMOSTAT
OVERLOAD
COMPRESSOR
TRANSFORMER
115 V
8.5 V
DOOR SWITCH
CUTTER GRID
Figure 3-12. FSP Condensate Pump Diagram
N
WATER
PUMP
PLUG
CONDENSER
FAN
HOT
N.C.
GAS SOLENOID
N.C.
WATER
PRESSURE
SHUNT
VALVE
SWITCH
SOLENOID
R
S
CONDENSATE
DRAIN PUMP
START RELAY
UNIT SHOWN WITH GRAVITY DRAIN;
SERVICE SWITCH IN "OFF" POSITION;
BIN NOT FULL OF ICE.
N
WATER
PUMP
PLUG
CONDENSER
FAN
HOT
N.C.
GAS SOLENOID
N.C.
WATER
PRESSURE
SHUNT
VALVE
SWITCH
SOLENOID
R
S
CONDENSATE
DRAIN PUMP
START RELAY
UNIT SHOWN WITH GRAVITY DRAIN;
SERVICE SWITCH IN "OFF" POSITION;
BIN NOT FULL OF ICE.
Units using a non-FSP sump pump.
The sump pump is powered directly from an independ-
ent electrical power supply and is not controlled by the
ice maker.
115
VOLTS
L
2
1
OFF
CLEAN
6
ON
3
SERVICE
SWITCH
BIN
THERMO-
STAT
1
3
2
EVAPORATOR
THERMOSTAT
OVERLOAD
TRANSFORMER
CUTTER GRID
Figure 3-13. Non FSP Sump Pump Diagram
3-7
Theory of Operation
60 HERTZ
N
WATER
PUMP
PLUG
CONDENSER
FAN
RECEPTACLE
HOT
N.C.
GAS SOLENOID
N.C.
WATER
PRESSURE
SHUNT
VALVE
SWITCH
SOLENOID
R
S
CONDENSATE
DRAIN PUMP
COMPRESSOR
START RELAY
115 V
8.5 V
UNIT SHOWN WITH GRAVITY DRAIN;
SERVICE SWITCH IN "OFF" POSITION;
BIN NOT FULL OF ICE.
DOOR SWITCH
#3752200 - Revision B - May, 2006
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