Water Pump - Ice-O-Matic UCG GOURMET Series Installation And Service Manual

UCG135/165 (BOARD)
E‐ Give power to the unit to start it up by switching ON the power line main switch; the unit will
start automatically in defrost cycle with the following components energized:
WATER INLET SOLENOID
VALVE HOT GAS VALVE
COMPRESSOR
ELECTRONIC TIMER
NOTE. During the defrost cycle, the water inlet
solenoid valve is energized. The water flows
through the valve to the back side of the
evaporator platen and then down to fill up the
icemaker s ump tank for the n ext freezing c ycle.
OPERATIONAL CHECKS
A. The unit now starts its first freezing cycle with the following components in operation:
COMPRESSOR
WATER PUMP
FAN MOTOR in air cooled version
B. Check to see through the ice curtain that the spray system is correctly seated and
that the water jets uniformely reach the interior of the inverted cup molds; also make sure that
the plastic curtain is hanging freely and there is not excessive water spilling through it.
The ice making process takes place thereby, with the water sprayed into the molds that gets
C.
gradually refrigerated by the heat exchanged with the refrigerant flowing into the evaporator
serpentine
.
D. On units UCG45/65/85/105 when the evaporator temperature reaches a preset value the
evaporator thermostat or cube size control changes its contacts; the freezing cycle ends and starts
the defrost or harvest cycle.
E. On models UCG 135/165 freezing cycle is completed through an electronic timer energized by
the evaporator thermostat. It starts when the cube size thermostat/control bulb (pig tail) located on
the evaporator serpentine reaches a temperature of approx. ‐15°C (5°F).
On units UCG135/165 the additional Time (12') of the freezing cycle starts when the cube size
thermostat control bulb (pig tail) located on the evaporator coil reaches a temperature of approx. ‐
15 C. Freezing time will range between 20 and 22 minutes in a 21 C ambient temperature, longer if
above this temperature and shorter if below.Then the unit goes directly into the Defrost Cycle. The
average complete cycle time is between 23 and 25 minutes.
F .
Check, during the first defrost/harvest cycle, that the incoming water flows correctly into the
sump reservoir in order to re‐fill it and the e surplus overflows through the overflow drain tube.
UCG GOURMET SERIES UNDERCOUNTER
pg. 7