Whirlpool CHCH8WS - Manual (Page 6)

CHECK OPERATION
STA№UP AND CHECK-OFF
1. Start the unit by opening water valve and turning the
service switch to "ON ”
2. NOTE: In "CLEAN" position, only the water pump
operates.
3. Check water level in pump pan. When not running,
water level should be VA" deep.
4. Check for even water flow over freezing plate. Unit
must be level for proper operation.
5. Check freezing plate to make sure it is getting cold.
6. Check cutter grids. Interior temperature limiter above
top grid turns grids "OFF" above 130° F.
7. Check for desired cube thickness and adjust if neces­
sary. Maximum capacity will be obtained with ice thick­
ness at 1/2" to 5/8". Do not adjust less than 3/8" thick as
machine may malfunction.
8. Replace all panels.
9. Store ice scoop m a clean place.
PUMP
MOTOR
HOW IT WORKS
WITH SERVICE SWITCH IN “ON” POSITION
1. Contactor is energized
2. Compressor runs
3. Condenser fans run
4. Water pump runs
5. Thickness control motor runs
6. Cutter grid warm to touch
NOTE: Grids will be 'OFF ' until temperature limiter
inside cabinet cools to 130° F.
WHEN DESIRED ICE SLAB THICKNESS IS
REACHED, HARVEST CYCLE BEGINS WITH THE
FOLLOWING RESULTS:
1. Thickness control arm raises, actuating switch and
holding relay coil
2. Compressor keeps running
3. Hot gas solenoid valve is energized and opens
4. Condenser fans stop
Condenser water valve closes tightly (Water cooled)
5. Thickness control motor keeps running
6. Water pump stops
7. Water siphons from pump pan and refills
8. Cutter grid warm to touch
MACHINE THEN GOES BACK INTO FREEZE
CYCLE WHILE SLAB IS BEING CUT INTO CUBES
ON CUTTER GRID
WHEN STORAGE BIN GETS FULL, BIN BAFFLE
OPENS SWITCH.
1. Slab completion relay keeps machine in freeze cycle until
full ice thickness is reached.
2. Machine then shuts completely off leaving slabs to
defrost by ambient temperature.
3. Cutter grids are "OFF."
HOW IT WORKS-MALFUNCTION LIGHT
1. When the high side pressure raises above the safe
operating limits the machine will shut down because the
blocked
condenser thermostat or pressure control
opened and the light will come on.
On air cooled models — this indicates that the condenser
is blocked with dirt and must be cleaned or the con­
denser fan motor is not moving air through the finned
condenser.
On water cooled models — this indicates the condenser
has excessive scale inside, water pressure is low, or
water has been shut off.
NOTE: After correcting the malfunction, manually reset
the control.