This is the safety-alert symbol. When you see this
symbol on our machine or in this manual, be alert to
the potential of personal injury.
Follow recommended precautions and safe operating
practices.
Understand Signal Words
A signal word - DANGER, WARNING, CAUTION is
used with the safety-alert symbol. DANGER identifies
the most serious hazards.
DANGER
Safety signs with signal word DANGER or WARNING
are typically near specific hazards.
General precautions are listed on CAUTION safety
signs. CAUTION also calls attention to safety messages in this manual.
WARNING
CAUTION
Follow Safety Instructions
Carefully read all safety messages in this manual and on your machine safety signs. Keep safety signs in
good condition. Replace missing or damaged safety signs. Learn how to operate the machine and how to
use the controls properly. Do not let anyone operate the machine without instructions. Keep your machine in
proper working condition. Unauthorized modifications to the machine may impair function and/or safety and
affect the machine life.
CAUTION: Very high discharges pressure is present in system. Quick disconnects on your
gages will minimize danger and loss of refrigerant.
CAUTION: Unit requires separate electrical line. See instruction manual for proper fuse
size.
WARNING: There must be adequate clearance around icemaker. Allow minimum 6” air
intake and 4” air exhaust for air exhaust and panel removal.
NOTE: Unit must be installed per local plumbing and electrical codes. See Installation manual for
unit requirements. Failure to do so may cause damage to unit, which would void unit warranty.
NOTE: Using any parts other than genuine factory manufactured parts relieves the manufacturer of all
liability.
NOTE: Manufacturer reserves the right to change specifications at any time.
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2
GENERAL DESCRIPTION
This section gives the Unit description, theory of operation, and design data for continuous flow icemaker series
500, 700, 1000, and 2000.
IMPORTANT: To the user of this manual – This manual is a guide for installing, operating, and maintaining this equipment. Refer to the Table of Contents for page location for detailed information pertaining to questions that arise during installation, operation, service, or maintenance of this equipment.
FIGURE 3. SERIES WCC2001–A AND WCF2201–A DIMENSION DRAWINGS
5
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6
INSTALLATION
This section covers unpacking and inspection, selecting location, installing unit, preparing for operation, and operation.
A. REMOVE ICEMAKER FROM CARTON
1. Keep unit in the upright position, remove carton and pallet from unit and inspect unit for damage. Upon inspection of unit, if any damage is found, file a claim with carrier immediately.
2. Locate startup card either on outside of container or on plastic liner. Fill in proper information and send one
copy to factory, and other copy to distributor. Postage is prepaid.
B. CABINET REMOVAL
1. Front Panel—Remove 4 screws and pull forward.
2. Top Panel—Remove screws and lift upward. 4 screws 500/700, 6 screws 1000.
3. Side Panel—Remove 4 screws and pull forward.
4. Back Panel—Should not be removed.
C. PREPARATION OF INSTALLATION SITE
1. The refrigeration system on air cooled units requires airflow, so a well ventilated area should be chosen. A
minimum of 6 inches must be maintained, free of any obstructions, for air intake. A minimum of 4 inches
clearance is required for air exhaust.
2. The unit can be installed either on an ice storage bin or ice dispenser using the proper adapter kits. (Refer
to sales literature for information.) The install is kit provided with each icemaker and adapter kits will supply
everything to locate unit correctly. In all cases the icemaker should be sealed all around the base with an
NSF listed sealant. (63804815B)
D. W ATER INLET HOOK UP
1. Water Inlet—fitting is a 1/4 SAE male flare located at the rear of the unit. Connect water supply with a 1/4
SAE flare nut and 1/4” copper or flexible tubing or larger.
2. Water Pressure—Unless otherwise specified, the unit is designed to operate on water pressures between
10 P.S.I. and 90 P.S.I. (NOTE: for pressures above 90 P.S.I. a regulator must be installed.)
3. Condenser Inlet Connections—Use a separate 3/8 copper line or larger water line. Connect to 3/8 FPT
fitting on water modulating valve.
4. Filter/Conditioners are recommended on supply lines to icemakers. Never run the water supply to water
cooled condenser through filter/conditioner, it uses up the cartridge unnecessarily and a saturated cartridge
can starve the icemaker causing premature component damage. Separate water supplies are recommended.
NOTE: Unit must be installed per local plumbing code BOCA.
E. DRAIN CONNECTION
1. Overflow Line—is a 3/8 I.D. flexible tube located at the rear of the unit. Extend this line to proper drain.
2. Condenser Outlet—is a 3/8 FPT located on the rear panel.
NOTE: Unit must be installed per local plumbing code. BOCA.
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F. ELECTRICAL SUPPLY
1. Power Access—is provided with a 7/8 dia. knockout hole in the rear panel. Route incoming power in
conduit, through rear panel to icemaker electrical control box. Make connections to wires provided in the
control box and ground lug/screw.
2. Fused Line—should be checked and sized according to electrical rating shown on unit nameplate.
G. AUGER ENGAGEMENT
Be certain that auger is fully engaged to lower drive and extruding head is fully engaged into evaporator.
H. BIN CONTROL
1. Remove tape holding control to white ice chute and also remove control bracket mounting screw located in
base of unit behind electrical box. (Screw will be used later to fasten bin control bracket to base of unit).
2. Slide control and bracket down chute to base of unit. very carefully guide control and bracket through 1/2
hole in front of ice chute. Use CAUTION to be sure control goes into bin, not between base of unit and
bin top.
3. Check location of bin control, it should be directly under ice chute at a 45_ angle. With control in place use
mounting screw that was removed in step 1 to secure bracket to base. See Figure 4
FIGURE 4. BIN CONTROL
INITIAL START UP, CHECKS AND ADJUSTMENT INSTRUCTIONS
NOTE: Do not start unit before completing installation steps on pages 7 and 9.
Turn on water supply (if unit is water cooled turn water on to condenser also) turn on main power switch (located on top of electrical box), and make the following system checks:
NOTE: If unit will not start be sure water reservoir is full. Low water safety control must be properly
adjusted to start and shut down unit. If water level drops below bottom of reservoir, unit must shut
down. Adjustment is made by moving magnet up or down.
Water Level—If necessary adjust float by bending float arm up or down as needed, push float assembly down
until unit stops running. Release float and unit will restart. Keep water in reservoir at level line while unit is in
operation. See Figure 5
Low Water Safety Control—Adjust magnet by bending magnet arm as needed to shut unit down if water level
drops below bottom of reservoir.
Bin Control—Place ice around probe, unit should shut down in one minute. Remove ice from around probe,
unit should start in two minutes.
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8
NOTE: For altitudes over 1000 feet above sea level, adjust range screw (behind end cover). Half turn
max. raises setting 4_F approx.
FIGURE 5. ICEMAKER FLOAT ASSEMBLY
Water modulating valve (water cooled units only)—Opening point of condenser water modulating valve
should be set to maintain proper operating pressure in the refrigeration system high side. (see chart on page
16). Closing point of valve should be set low enough to close valve during compressor stand by periods. To
raise, turn counterclockwise, to lower turn clockwise.
NOTE: If any of these checks or adjustments cannot be achieved, refer to Troubleshooting Section of
this manual or call for factory assistance at 1–800–Service.
BLK
BLK
3
208/230
VAC
BLK
ON/OFF
SWITCH
RED
RED
BLK
BIN CONTROL LEFT
RED
BIN CONTROL RIGHT
ANTI – FREEZE
RELAY
4
7
B
WTR LVL CONTROL
LEFT
WTR LVL CONTROL
RIGHT
6
RED
5
2
4
1
B
A
GEAR MOTOR LEFT
BRN
RED
MAIN
CONTACTOR
RED
RED
RED
RELAY
5
1
FAN
START
CAPACITOR
BRN
A
GEAR MOTOR RIGHT
C
COMPRESSOR
S
2
RUN
CAPACITOR
R
RED
FIGURE 6. SCHEMATIC AND WIRING DIAGRAM WCC2001–A AND WCF2201–A
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115 VAC
BLACK
SERVICE
SWITCH
WHITE
WATER
COOLED
ONLY
BIN
CONTROL
SWITCH
LOW WATER
SAFETY
SWITCH
HIGH PRES.
CUTOUT
SWITCH
AUX BIN
CONTROL
SWITCH
7A4
COMPRESSOR
1
2
5
AUGER
GEAR
MOTOR
START
RELAY
B
START CAP.
RUN CAP.
C
S
R
FAN MOTOR
FIGURE 7. SCHEMATIC AND WIRING DIAGRAM WCC500–A, WCC500–W, WCC700–A, WCC700–W,
WCF510–A, WCF510–W, WCF710–A, & WCF710–W
208/230
60 HZ.
BLACK
SERVICE
SWITCH
WATER
COOLED
ONLY
BIN
CONTROL
SWITCH
LOW
WATER
SAFETY
SWITCH
HIGH PRES.
CUTOUT
SWITCH
AUX BIN
CONTROL
SWITCH
74
AB
AUGER
GEAR–
MOTOR
START
RELAY
COMPRESSOR
1
2
5
START CAP.
RUN CAP.
C
S
R
FAN
MOTOR
RED
FIGURE 8. SCHEMATIC AND WIRING DIAGRAM WCC701–A, WCC701–W, WCC1001–A, WCC1001–W
FIGURE 10. SCHEMTIC AND WIRING DIAGRAM WCC502, WCC702, WCC1002,
WCF512, WCF712, & WCF1102
11
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FIGURE 11. SCHEMTIC AND WIRING DIAGRAM WCC2001-R AND WCF2201-R
12
GUIDE TO SERVICE
ICEMAKER CLEANING AND SANITIZING PROCEDURES
Do not use any of the ice made during cleaning operations.
Clean and sanitize ice storage area when cleaning icemaker.
1. Turn machine off.
2. Shut off water supply.
3. Remove ice from storage bin.
4. Mix approved cleaner (2 gallons as directed). Recommended cleaner: Calgon Corp. of Virginia Chemicals, ice machine cleaner. Mixture: 3-1/3 ounces per gallon of water.
5. Clean auger/diverter assembly and ice transition/drop tube in a sink using cleaner mixture and reinstall in
icemaker. Using cleaner, wipe down the dispense tray.
6. Turn machine on and add cleaner solution to water level control until 2 gallons have been used.
7. Turn on water supply and run machine for 15 minutes.
10. Sanitize auger/diverter assembly and ice transition/drop tube in a sink using sanitizing solution and reinstall
in icemaker. Using sanitizer, wipe down the dispense tray.
11. Fill icemaker with sanitizer by slowly pouring solution into water feed reservoir until full. Solution will drain
through overflow tube. Do not run machine. Allow to air dry.
12. If icemaker is used in conjunction with ice dispenser or storage bin, follow manufacturer’s recommended
cleaning instructions at this time.
MAINTENANCE
Preventive maintenance can increase the trouble free life of your icemaker. Many authorized service agencies
offer service contracts for your icemaker. Contact your local distributor for further information.
MONTHLY
1. Clean the condenser. Use a brush, vacuum cleaner or blow from inside with air or CO2 gas.
2. Inspect water feed reservoir at lease once a month until a definite pattern for cleaning and sanitizing has
been established.
QUARTERLY
This is the maximum period of time between cleaning and sanitizing the icemaker. In addition to recommended
monthly procedure, and if a more frequent cleaning and sanitizing pattern has not been established, unit must
be cleaned and sanitized.
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SEMI–ANNUALLY
Semi-Annually in addition to all previously established service procedures perform the following:
1. Check for water leaks in tube connections, water fittings and lower icemaker water seal.
2. Check drain tubes for clogs and aged tubes. Replace if tubes are stained or brittle.
3. Check for signs of condensation. Clean where necessary and replace insulation properly.
4. Check safety circuits for proper operation.
5. Check refrigeration system (see page 16).
6. Check unit for abnormal noise. Tighten machine and cabinet screws, if necessary.
7. Check white upper bearings on auger assembly. If bearings are less than 1/16 thick, replace. See Figure
12
REPLACE
OK
1/16Ȃ
REPLACE
1/16Ȃ
FIGURE 12. UPPER NUT AND BEARING ASSEMBLY
OK
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14
WATER LEVEL CONTROL
HOW WATER LEVEL CONTROL WORKS
When water is introduced through the inlet fitting the float rises. the float pushes against a lever which in turn
forces the poppet assembly against the inlet fitting valve seat which seals the water off. See Figure 5 Before the
water inlet is sealed the safety switch is operated. In the event of a water failure the float would drop down and
operate the safety switch to shut off the machine.
If water level control will not shut off and seal at level as indicated, be sure inlet pressure does not exceed recommended factory operating range.
Under ordinary circumstances adjustment should not be necessary providing it was properly adjusted when unit
was installed or relocated. If, however, the control becomes inoperative, repair or replace. See Start-Up Adjustment, page 9.
PURPOSE
1. To automatically maintain proper water level in the evaporator when unit is running and making ice.
2. A safety switch is operated in the event of an interruption in water supply. The switch shuts off the electrical
power to the icemaker and its refrigeration system. Switch will reset as soon as cause of water failure has
been corrected and proper water level in icemaker has again been reached.
3. The transparent bowl not only provides a visible check of water level, but also is a good guide to the internal conditions which exist within the icemaker assembly itself. (See Cleaning Procedure.)
TO REPLACE WATER LEVEL CONTROL
1. Shut off the water supply. Shut off the main power switch or unplug the ice dispenser from electrical outlet.
2. Remove the flexible tubing from bottom of water level control and drain water from water level control and
evaporator.
3. Remove flexible tubing at bottom of water level bowl connected to the overflow.
4. Hold water inlet fitting with proper tool to prevent it from rotating when disconnecting the water inlet.
5. Remove wing nut holding water control to its mounting bracket. Control can be removed by lifting straight
up.
TO REPLACE WATER LEVEL SAFETY SWITCH
1. Shut off main power switch or unplug the ice dispenser from electrical outlet.
2. Unplug molex connector connecting switch to electrical box.
3. Remove the 2 screws anchoring the water level safety switch to the bottom of the water level control
mounting bracket.
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REFRIGERATION SYSTEM
NOTE: Thermostatic Expansion Valve NO Adjustment
$10 lbs. Discharge Pressure
Water Temperature
WCC 500WCC 700WCC 1000WCC 2200
40_65_90_40_65_90_40_65_90_40_65_90_
50_
60_
70_
80_
90_
100_
Air Temperature
REFRIGERATION SYSTEM ADJUSTMENTS
A complete understanding of the icemaker and hermetic refrigeration system is necessary before any adjustments are made. The refrigeration technician must use high and low side pressure readings, water and air temperatures, plus general conditions of cleanliness to assess the refrigeration system status when making any
adjustments.
All icemaker products are tested and adjusted at the factory prior to shipment where the ambient temperature
ranges from 65_ to 90_F, depending on the season of the year.
Whenever a new icemaker product is initially installed and started-up, it is imperative that the start-up operation
make the following checks and/or readjustments for local conditions.
EXPANSION VALVE
You will find a thermostatic expansion valve on icemakers, which is used to control the amount of refrigerant
flowing through the evaporator. Improperly installed or defective expansion valves may cause low production,
soft ice, squeaking from evaporator and excessive load inside evaporator.
By using general refrigeration system troubleshooting along with the pressure charts you can easily determine
whether or not the expansion valve is working properly.
ADJUSTMENT AND TROUBLESHOOTING
When troubleshooting the expansion valve you must first be sure you have adequate water flowing into evaporator, a clean condenser, unit is properly ventilated, and system is properly charged and free from any restrictions. Also be sure compressor is operating properly.
Second, take reservoir water temperature and air temperature from condenser inlet and determine at what pressure unit should be running. Machines are equipped with thermostatic valves, there is NO adjustment. If correct
pressure cannot be obtained, first be sure system has time to stabilize 10-15 minutes. Second, be sure sensing
bulb is located at 12:00 position on outlet side of evaporator about 3-4 inches away from evaporator and be sure
to insulate well and clamp tightly to tubing. If system pressures are still not adequate, take a second water and
air temperature reading and go over other parts of system for possible problems. If proper charge is questionable evacuate and recharge to nameplate and leak check. If valve still malfunctions replace valve.
When replacing valve be sure to bleed refrigerant gas from low side port so as not to lose refrigerant oil. Use
general refrigerant system practices when replacing and recharging unit. After new valve is in place, go through
previous monitored adjustments and troubleshooting to be sure valve is functioning properly.
NOTE: Units with thermostatic expansion valve—valve is located on bottom refrigerant line. Sensing
bulb is located on top refrigerant line. On water cooled units adjust condenser modulating valve before troubleshooting expansion valve.
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16
CAUTION: Very high discharge pressure is present in system. Quick disconnects on your
gauges will minimize danger and loss of refrigerant. Comply with federal regulations for
reclaiming refrigerant.
CONDENSER MODULATING VALVE
The reason for using a water modulating valve is to supply the correct amount of water to the condenser. and to
maintain a proper operating pressure to refrigeration system high side.
The flow of water through the valve is increased as the high side pressure rises and is decreased as high side
pressure lowers.
To calibrate the amount of water flow with the refrigeration system high side pressure, turn adjustment screw
located on end of valve opposite of bellows. See Figure 14. Turn screw counterclockwise to raise opening point
or clockwise to lower opening point. Opening point of valve should be set to maintain proper operating pressure
in refrigeration system high side. Refer to Pressure Chart on page 16. Closing point of valve should be set low
enough to close valve during compressor stand-by periods.
NOTE: Cold water will absorb heat faster than warm water. The water flow will therefore automatically
increase as inlet temperature increases.
SIGHT
GLASS
THERMOSTATIC
EXPANSION VALVE
FIGURE 13. EXPANSION VALVE
FIGURE 14. ADJUSTMENT SCREW
CONDENSER MODULATING VALVE REMOVAL
1. Disconnect power to unit, then shut off water supply to condenser and evacuate refrigerant from system.
2. Remove inlet water line from Condenser Modulating Valve. Also remove tube from high side refrigerant
line.
3. Remove Condenser Modulating Valve and bracket from unit.
4. Remove valve from bracket.
5. Replace Condenser Modulating Valve by reversing Steps 2 thru 4. Then pull system into vacuum.
6. Charge unit with proper amount of refrigeration.
7. Turn power and water on to unit.
8. With unit running, adjust modulating valve to proper setting.
9. Go through a complete system check.
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BIN CONTROL
The type of bin control used on all WCC Models is thermostatically controlled. The switch itself is inside the
electrical box and can be serviced from the front of the unit. The cap tube bulb is located directly under the ice
chute.
To test switch, disconnect power to unit and remove one wire from switch. Connect both leads of your ohmmeter to the Bin Control Switch terminals. With control bulb at room temperature ohmmeter should read “Closed
Circuit”. Refer to Figure 15
Now cover the control bulb with ice, within 1 minute switch should “click” and ohmmeter should read “Open Circuit.”
The Bin control is in electrical series with coil on antifreeze relay along with the low water safety. If unit is water
cooled, the condenser high pressure cut out is also in series.
The Control Switch is held in place inside electrical box by 2 screws. Control bulb is positioned under ice chute
and can be replaced by removing screw that holds bracket to base of unit. With control and bracket removed,
slip bulb off end of bracket.
The most important thing to remember when replacing probe is to be careful not to cut or kink probe and be
sure sensor bulb is located in a position to shut unit down before ice reaches ice chute.
This icemaker is equipped with a safety ice level sensor. This sensor control is located on the dispense tray cover. This switch is also in electrical series with the anti-freeze relay and other safety circuitry.
BIN CONTROL
SWITCH TERMINALS
FIGURE 15. BIN CONTROL SWITCH
GEARMOTOR
The gearmotor is equipped with a start relay and a manual reset overload.
When current is applied, the relay energizes and completes the circuit to the start winding. The motor reaches a
predetermined speed and the relay drops out, disconnecting the start winding. The run winding remains in the
circuit as long as current is applied.
The purpose of the overload is to automatically shut off the motor in the event of a mechanical bind of the transmission, an overload condition within the evaporator or an electrical malfunction. It does this by sensing amperage draw. If the motor stalls the start relay would energize and stay energized. The amperage would surge 5 to
6 times greater than the normal draw. In this event the overload would shut off the transmission in 4 to 8 seconds.
If the motor is subjected to an abnormal load, but does not reach a stall condition, the overload will react, but
over a greater period of time. The reaction time depends upon the amperage to which it is subjected.
The overload, through the safety circuit, also shuts off the compressor.
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18
GEARMOTOR
OVERLOAD TRIPPED
Check water level control
and evaporator water tube
for line build-up restrictions.
IMPORTANT
Icemaker runs when
reset but problem has
not been found.
Continue checking for
overload as follows to
guard against future
problems.
Icemaker
runs.
Short run. Trips
again in 2
minutes. Check
gearmotor circuits.
OVERLOAD GUIDE
ELECTRICAL:
S High or low voltage. Weak power lines can cause overloads on icemakers restarts.
S High running current (2.4amps or above). Check motor circuits and start relay.
S Auger delay failed.
ICEMAKER
S Mechanical parts worn. Scored evaporator or auger. Worn thrust bearing.
S Icemaker not turning off. Failed ice level control.
S Over compression. Low water inlet temperature. Restrictions in water line from reservoir.
REFRIGERANT
S Contaminated charge or bad compressor.
S Low charge or gas leak.
S Low suction pressure. Improper expansion valve. Sensing bulb location or insulation
and/or defective expansion valve.
NO
CAUTION
Clear ice from
evaporator and
auger before
resetting overload.
Reset overload.
Resets but
motor does
not run.
Resets but
motor does
not run.
Check
gearmotor
circuits.
Will not
Reset.
Overload
hot try
again.
Will not
reset.
Replace
overload.
YES
CLEAN
See Instructions.
MOTOR CHECK
The resistance readings on the winding will be between 5 to 25 ohms. A meter capable of these low readings
must be used. The start relay cover must be removed. (See Figure 16).
If no continuity on start or run winding test, replace gearmotor. If continuity on grounded motor test, replace
gearmotor.
START RELAY
1. Check between “2” and “4” on relay (with relay unplugged). If there is continuity replace the relay, as the
relay contacts should be open.
2. Check between “3” and “4” on relay, if no continuity replace the relay.
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FIGURE 16. GEARMOTOR ASSEMBLY
TO REPLACE GEARMOTOR ASSEMBLY
1. Disconnect the icemaker from the electrical power source.
2. Disconnect the transmission cable from the electrical box.
3. Remove the 4 hex head bolts securing the evaporator to the top of the transmission.
4. Remove the 4 bolt’s holding the transmission and bracket to frame base, while supporting the weight of the
evaporator. Remove the transmission from the unit.
5. When replacing the transmission, it may be necessary to rotate the auger back and forth to align the motor
shaft and auger.
E–RING
WASHER, PLAIN FLAT
SHAFT SEAL
LOCA TOR SEAL
BEARING DELRIN
AUGER NUT
BEARING NYLON
AUGER
“D” DRIVE
GROOVE
GEARMOTOR
ANTI–ROTATION
RIB – 3 PLACES
EXTRUDING
HEAD
FIGURE 17. SHAFT SEAL 500
FIGURE 18. AUGER AND EXTRUDING HEAD REMOVAL
INSTALLATION AND SHAFT SEAL REPLACEMENT 500(See Figure 17)
1. Place shaft seal locator seat over gear motor output shaft, embossed side down, and push down until shaft
seal seat rests flush on top of gear motor.
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20
2. Place rubber coated ceramic seal (important: ceramic face up) over output shaft and push down until seal
rests on top of the shaft seal seat. (Lubricate rubber on ceramic seal with rubber lubricant.)
3. Place shaft seal with carbon face down (spring up) over output shaft and push (gently) downward until seal
rests on ceramic face of the output shaft seal.
4. Place flat washer over output shaft and let rest on the output shaft seal. Push down on the washer compressing the spring on the output shaft seal. While holding the seals (down) in place slide the E-ring into
the groove on the output shaft.
AUGER AND EXTRUDING HEAD REMOVAL
1. Disconnect unit from power supply.
2. Remove storage container cover and put aside.
3. Turn off water supply to icemaker.
4. After ice has melted from head take hold of the auger nut and lift straight up to disengage from icemaker.
5. When replacing the auger assembly, make certain that both the auger engages the output shaft drive and
the extruding head ribs engage the evaporator tube. (See Figures 18 )
E–RING
WASHER, PLAIN FLAT
SHAFT SEAL
MOUNT, SHAFT
SEAL
SEAT, SHAFT SEAL
GEARMOTOR
FIGURE 19. SHAFT SEAL 700 & 1000
INSTALLATION AND SHAFT SEAL REPLACEMENT 700 & 1000 (See Figure 19)
1. Place shaft seal locator seat and shaft seal mount over gearmotor output shaft and push down until shaft
seal seat and shaft seal mount rest flush on top of gearmotor.
2. Place rubber coated ceramic seal (important: ceramic face up) over output shaft and push down until seal
nest in recess of shaft seal mount. (lubricate rubber on ceramic seal with rubber lubricant).
3. Place shaft seal with carbon face down (spring up) over output shaft and push (gently) downward until seal
rests on carbon face of the output shaft seal.
4. Place flat washer over output shaft and let rest on the output shaft seal. Push down on the washer compressing the spring on the output shaft seal. While holding the seals (down) in place slide the E-ring into
the groove on the output shaft.
UPPER NUT AND BEARING ASSEMBLY
The upper white bearing located on top of the auger is used to absorb the force between the auger and extruding head.
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NOTE: The bearings are 3/32Ȃ thick. When they wear below 1/16Ȃ they should be replaced. Bearings to
be inspected for wear during quarterly maintenance. (See Figure 12)
To Replace Bearing
1. Disconnect unit from electric power.
2. Remove top panels.
3. Remove Dispense Tray Cover.
4. Use an open end wrench on auger nut connected to bearing and turn counterclockwise to remove
assembly.
5. Remove worn bearings. Replace with new bearings and then reinstall assembly.
NOTE: If auger turns with nut, remove cover on top of gearmotor stator and hold motor while loosening nut.
FIGURE 20. OVERLOAD CHECK
FIGURE 21. COMPRESSOR CHECK
ELECTRICAL CHECKOUT
1. Be sure the unit is disconnected from the power source. Remove the compressor electrical box cover.
Check for obvious damage and loose wires.
2. Disconnect the fan motor leads. Since capacitors store energy, short the capacitor with a screwdriver. This
will prevent shocks.
3. Disconnect the compressor terminal wires.
OVERLOAD CHECK (See Figure 20)
4. Using a volt-ohmmeter check the continuity across the overload, contact #1 and #3. If none, wait for unit to
cool down and try again. If still no continuity, the overload protector is defective and should be replaced.
COMPRESSOR CHECK (See Figure 21)
The resistance readings on the windings will be between 0.25 to 10.00 ohms, a meter capable of these low
readings must be used.
5. Check between “C” and “R.” Replace the compressor if there is no continuity as the run windings are open.
6. Check between “C” and “S.” Replace the compressor if there is no continuity as the start windings are
open.
7. Check between “C” and “R” or “S” and the shell of the compressor. If there is continuity, replace the compressor as the motor is grounded.
8. Check between screw terminal on the overload and “C” on the compressor. Check and repair the lead or
connections if there is no continuity.
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22
CAPACITOR CHECK
9. Check or replace start capacitor, disconnect bleed resistor before checking for shorted capacitor.
10. Check or replace run capacitor (if supplied) check for shorted capacitor or either terminal grounded to case.
GEAR MOTOR OVERLAY
FIGURE 22. GEAR MOTOR OVERLOAD
SAFETY CONTROLS
Your icemaker unit has several safety and control devices incorporated into its design.
WARNING: None of the below described devices should ever be “bypassed” to allow the
unit to function.
The safety and control system shut-off devices are:
1. Low water shut off reed switch located in icemaker float assembly. (Automatic reset type.)
See Figure 5
2. Gearmotor thermal overload, manual reset type (red button on motor). See Figure 22
3. Compressor thermal overload, automatic reset type. See Figure 20
4. Anti-freeze relay and associated circuit. See wiring diagrams, pages 10 and 11.
5. Main service switch located on top of the control box. See Figure 15
6. Bin Control. See Figure 15
7. High pressure cut out (water cooled only).
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CUSTOMER
COMMENTS
GUIDE TO GOOD ICE
CHECK ICEMAKER
LOCATION CONDITIONS
FIRST
CHECK ICE MAKER
“It runs but the ice is
too soft.”
“The icemaker is not
producing enough ice.”
“The ice is too wet.”
“It makes too much
noise.”
(With this comment
the ice is usually
extremely hard and
larger than normal.)
Over
Compression
S Proper air flow for condens-
ing system.
S Location too close to high
units such as coffee urns,
deep fryers, grills, etc.
S Supply water conditions
Water too warm
(above 90_F).
Water artificially softened
above 262 ppm sodium chloride.
Normal water supply too high
in total dissolved solids
(above 500 PPM).
S Check to see if noise
objection is normal fan and
air flow noise.
S Supply water conditions.
Water too cold (below
50_F). (Possibly running
from pre-cooler.)
S Use gauges for checking
suction and head
pressures. See manual
for correct reading and
conditions. Check frost
line and sight glass.
S Check water level for
proper adjustment and
restrictions. See
Manual.
S Check evaporator
assembly for worn
parts, bearings, scored
evaporator and auger,
bad expansion valve.
etc.
S Check for loose parts
and screws rattling.
S Check evaporator
assembly for worn
parts, bearings, scored
evaporator and auger,
bad expansion valve,
etc.
638085278
S Obstructions partially
blocking ice exit from top of
evaporator.
S Check fan and fan shroud.
24
TROUBLESHOOTING CHART – ICEMAKER NOT OPERATING
25
NO POWER
Check electrical wiring in con-
trol box for loose connec-
tions.
Check for failed service
switch or relay.
Check power to machine.
High pressure
switch open or
cycling on and off.
Discharge
king valve
partially
closed.
Open
valve
recharge system.
Clean condenser.
Low pressure switch open
or cycling on and off.
for loose connections.
Non-condensible
in system.
Evacuate and
Low on
refrigerant.
Remote condenser
units only
Remote condenser
not running.
Check electrical
wiring in control box
Too much
refrigerant in
system.
Remote condenser
units only
Check power
to condenser.
Condenser
fan not
running.
Check electrical circuit
to fan motor.
Check fan motor.
Plugged
liquid line
dryer.
ICEMAKER RUNS BUT
DOES NOT MAKE ICE
Condenser fan running
but compressor not running
Check line voltage.
Check compressor winding
& components.
Evaporator water tube
may have an air bubble.
Clear air bubble from
tube.
Head
Pressure
high.
Condenser
dirty or
restricted.
Restricted
liquid line.
Valve
stuck
open.
Replace
valve.
Plugged or
faulty TXV.
LOW WATER SAFETY
SWITCH OPEN
Check that water is turned on.
Check for restriction in water line.
Check incoming water pressure
(minimum 10 lbs.).
Check water safety switch.
High suction pressure
(30 lbs. or above).
TXV not
operating
properly.
Bulb
loose.
Clean
and
tighten.
Icemaker
froze up.
Suction line
not
insulated.
Bulb
uninsulated.
Clean and
insulate.
Low suction pressure
(20 lbs. or below).
TXV bulb
lost charge.
Replace valve
evacuate and
recharge.
ICEMAKER OPERATING BUT
SOFT ICE
Check bin switch
Yes
Clean all related
drain lines.
IMPORTANT
Icemaker runs when reset
but problem has not been
found.
Continue checking for
overload as follows to
guard against future
problems
No
Refer to guide
to Good Ice in
service manual.
Icemaker runs
Short run trips
again in 2 min-
utes. Check gear-
motor circuit.
GEARMOTOR OVERLOAD
TRIPPED
Check water level control
and evaporator water tube
for lime build up restriction.
No
CAUTION
Clear ice from
evaporator and
auger before re-
setting over-
load.
Reset
overload.
Reset but
motor does
not run.
Check
gearmotor
circuit.
CLEAN
instructions.
Will not
reset.
Overload
hot try
again.
Will not
reset
replace
overload
Yes
see
638085278
Check for
leaks.
LAC not operating
properly (minimum
discharge pressure
180 lbs.).
Replace LAC valve,
evacuate and
recharge system.
Replace
dryer.
Evacuate
and
recharge
system.
Check for
kinks or
damage to
liquid line.
Replace
valve.
Evacuate
and
recharge
system.
Check drive on
gearmotor.
Check if
auger is
turning.
No
Check gears in
gearbox.
Check if extruding
head is down in
evaporator tube.
OVERLOAD GUIDE
ELECTRICAL
High or low voltage weak power lines can cause overloads on icemaker restarts
High running current. Check motor circuits and start relay – Auger delay failed.
ICEMAKER
Mechanical parts worn. Scored evaporator or auger. Worn thrust bearing.
Ice maker not turning off. Failed ice level control.
Over compression. Low water inlet temperature. Restriction in water line from
reservoir.
REFRIGERANT
Contaminated charge or bad compressor.
Low charge or gas leak.
Low suction pressure. Improper expansion valve sensing bulb. Location or insulation
and/or defective expansion valve
THIS PAGE LEFT BLANK INTENTIONALLY
638085278
26
TROUBLESHOOTING
IMPORTANT: Only qualified personnel should service internal components or electrical wiring.
TROUBLESHOOTING COMPRESSORS
TroubleProbable CauseRemedy
Basically the compressor problems can be narrowed down to three areas of checkout.
THE COMPRESSOR WILL
NOT RUN
THE COMPRESSOR STARTS
BUT TRIPS REPEATEDLY ON
THE OVERLOAD
PROTECTOR
THE COMPRESSOR RUNS
BUT WILL NOT
REFRIGERATE
A.No voltage to the compressor
terminals.
B.Low voltage.B.Below 90% of nameplate rated
C.Problems in the compressor
electrical circuit.
A.A.Check for proper fan operation
B.B.Check the compressor suction
C.Voltage.C.Voltage should be within 10% of
D.High compressor amperage
draw.
A.Compressor not working.A.Check the compressor suctions
A.Check circuit.
voltage.
C.See electrical checkout
instructions.
and clean condenser.
and discharge pressures.
the rated nameplate voltage.
D.It should never exceed 120% of
the rated nameplate amperage.
See electrical checkout
instructions.
and discharge pressures. See
chart on page 16.
27
638085278
THIS PAGE LEFT BLANK INTENTIONALLY
638085278
28
PARTS LIST
29
638085278
9
10
7
6
2
4
3
11
1
FIGURE 23. REFRIGERATION AND ICEMAKER ASSEMBLY MODEL 2000 SERIES
EXPLODED VIEW AND PARTS LIST
638085278
Item
NoPart NoDescription
1162964027Compressor (WCC2001 and WCF2201)
162964046Compressor (WCC2002 and WCF2202)
2638036849Condenser (WCC and WCF Air)
27177Condenser (WCC and WCF Water)
161870007Condenser (WCC and WCF Remote)
3638090344001Fan Motor (WCC and WCF Air 50 and 60 HZ)
27185Fan Motor (Remote 50 and 60 HZ)
463809034401Fan Blade (Air)
630900246Fan Blade (WCC and WCF Remote)
5638004391Bracket Fan Motor
6638036087Clamp, Dispense Tray
7638036872001Dispense Tray Assembly
8638036882Cover Dispense Tray
9638036884Detector Assembly Ice leve
FIGURE 25. REFRIGERATION AND ICEMAKER ASSEMBLY MODEL 700 SERIES
33
638085278
REFRIGERATION AND ICEMAKER ASSEMBLY MODEL 700 SERIES
Item
No.Part No.Description
638090230Front End Assembly–115V
1
638090230–001 Front End Assembly–208/230V
638090230–002 Front End Assembly–220V 50Hz
638090227Front End Assembly–WCF710
638090227–001 Front End Assembly–WCF711
638090227–002 Front End Assembly–WCF712
638090221Compressor, 115V
638036884Detector Assembly–Ice Level
12638036020Drop Tube Assembly
13638090350Water Level Control Assembly
14638090347Bracket, Water Level Control
15638090326Expansion Valve
16638007262–01Nut, Tinnerman
17638090055Dryer
18638008409Bulkhead Fitting
19638007206–04Nut, Bulkhead Fitting
20*638007921Connector, UL Ground
21*638007295Bulkhead Fitting, Water Cool
22*638009711Support, Condenser, Water Cooled
23*638009712Clip Condenser, Water Cooled
24*638007208–03Nut, Palnut, 3/4-16
25*638090021Valve, Water Regulating
26*638036188Receiver, Upright
27*638036194Valve, Head Pressure
28*638037110Washer, Seal
29*638037111Valve, Rotolock
30*638036014Cover, Electrical Box
Dispense Tray
Note: * = Not Shown
638085278
36
3
2
1
5
6
FIGURE 27. WATER LEVEL CONTROL ASSEMBLYMODEL WCC500/700/1000 SERIES
638092529Bracket Water Level WCC2000
6638008097Clamp, Reed Switch
7638007002–01 Screw
37
638085278
16
16
10
9
8
7
6
5
1
14
4
3
2
FIGURE 28. FRONT END ASSEMBLY MODEL 500 SERIES
Item
No.Part No.Name
638090130Front End A s s e m b l y –WCC500
638090130–002 Front End Assembly–WCC502
638090143Front End Assembly–WCF510
638090143–002 Front End Assembly–WCF512
638090001–002 Gearmotor Less Cable, Seals O-ring
1
638090050–002 Gearmotor–115V with Service Kit
638090050–005 Gearmotor Complete–115V/220V 50Hz
2638090116Shaft Seal Seat
3638090051Shaft Seal
4638007301–036 Washer, Lower
5638090053E-Ring
638090230Front End Assembly–WCC700
638090230–001 Front End Assembly–WCC701
638090230–002 Front End Assembly–WCC702
638090227Front End Assembly–WCF710
638090227–001 Front End Assembly–WCF711
638090227–002 Front End Assembly–WCF712
638090050Gearmotor Assembly–700, 115V
1
638090050–004 Gearmotor Assembly–208/230V 60Hz
638090050–006 Gearmotor Assembly–220V 50Hz With
638090001Gearmotor, 115V Without Service Kit
638090001–002 Gearmotor, 220V 50 Hz Wi t h o u t
638090001–001 Gearmotor, 208/23–V 60Hz
2638090215Shaft Seal Mount
With Service Kit
Service Kit
Service Kit
3638090051Shaft Seal
Item
No.Part No.Name
4638007301–030 Washer, Lower
5638090053E-Ring
6638090216Shaft Seal Seat
7638007302–06Washer, Lock 1/4 Split
8638007088–06Screw 1/4-20 x 3/4 Lg. HHMS
9638036282–001 Evaporator Assembly
FIGURE 30. FRONT END ASSEMBLY MODEL 1000 & 2000 SERIES
EXPLODED VIEW AND PARTS LIST
Item
No.Part No.Name
638090316Shaft Seal Seat
638090330–001 Front end Assy–WCC1001 & 2001
638090330–002 Front end Assy–WCC1002 & 2002
638090343–001 Front end Assy–WCF1101 & 2201
638090343–002 Front end Assy–WCF1102 & 2202
638090000–001 Gearmotor–WCC1002 & 2002 without
1
638090000–001 Gearmotor–WCC1001 & 2001 without
638090050–001 Gearmotor Assy–WCC1001 & 2001
638090050–001 Gearmotor Assy–WCC1002& 2002
2638090315Shaft Seal Mount
3638036042O-Ring
4638090051Shaft Seal
Service Kit
Service Kit
with Service Kit
with Service Kit
Note: * = Not shown
638085278
5638007301–030 Washer, Lower
Item
No.Part No.Name
6638090053E-Ring
7638007106–03Screw 1/4 x 3/4 FHSC
8638007302–06Washer Lock 1/4 Split
9638007088–01Screw, 1/4-20 x 5/8 Lg. HHMS
10638090335Evaporator Assembly
11638090313Auger
12638090317Extruding Head Assembly Center
13638090318Extruding Head Flanker
14638090311Diverter Nut Assembly
638090319Bearing Nylon
15
638090320Bearing Delrin
16638090326Expansion Valve, Thermal
17638090349Bracket, Mounting
18638007106–03Screw, 1/4 x 3/4 FH S C
40
10
11
9
12
8
5
7
6
1
3
2
FIGURE 31. ELECTRICAL BOX ASSEMBLY MODEL 500 AND 700 SERIES
IMI Cornelius Wilshire (formerly Wilshire Corp., Selmix Reynolds Products, Alco Dispensing Canada Ltd.) warranty to the original commercial
purchaser/user, that any commercial product of its manufacture bearing the name Cornelius Wilshire will be free from defect in material and/or factory
workmanship, and that if properly installed, maintained, and serviced in accordance with the Service Manual furnished with the product, it will perform
adequately under normal use. This product warranty shall be effective for a period of two years from the date of original installation of 27 months
from the date of original shipment by IMI Cornelius Wilshire, whichever period elapses first.
IMI Cornelius Wilshire obligation under this warranty is limited to the repair or replacement, including reasonable labor charges, of any part of parts
which the purchaser/user returns to IMI Cornelius Wilshire’s factory, transportation costs prepaid, and which IMI Cornelius Wilshire finds to be
defective in workmanship and/or material within the warranty period. To be reimbursable under this warranty, labor charges must be submitted to
IMI Cornelius Wilshire within 30 days from the date of service, must be performed by a qualified company acceptable to IMI Cornelius Wilshire, and
must be for reasonable and customary straight time labor charges only. No travel time, mileage, or other charges in excess of straight time charges
will be accepted. Any replacement parts must be approved IMI Cornelius Wilshire parts. The serial and model numbers and date of original installation of the product must be given.
ADDITIONAL THREE YEAR LIMITED WARRANTY ON COMPRESSOR
The hermetically sealed refrigeration compressor is covered by the above two year limited warranty. In addition to that warranty, if the compressor
fails because of a defect in materials or workmanship during the third through fifth year from the date of installation, IMI Cornelius Wilshire will repair
or at its option, replace the compressor. Labor charges and the cost of relays, overloads and capacitors are not included.
This warranty does not include failure or other damage resulting from:
S Electrical power failure to the ice machine for any reason
S Water supply failure to the ice machine for any reason
S Adverse operating conditions as set forth in your Service Manual
S Drain line malfunctions as set forth in your Service Manual
S Failure to clean and maintain the ice machine as set forth in your Service Manual
S Use of non-authorized replacements parts
S Unauthorized modification of the ice machine
S Any product installed outside the U.S.A. or Canada
No part or assembly which has be subject to accident, alteration or misuse or which is not installed, maintained, or serviced in accordance with the
Service Manual furnished with the product, or which is from a machine on which the serial number has been altered or removed, shall be covered
by this warranty.
THIS WARRANTY DOES NOT COVER DAMAGE CAUSED BY LACK OF PREVENTATIVE MAINTENANCE, IMPROPER INSTALLATION,
ACCIDENT, MISUSE, NEGLIGENCE, ALTERATION, FIRE, FLOOD, OR ACTS OF GOD. In those jurisdictions where liability for damages cannot
be disclaimed, original purchasers recovery shall not exceed the cost of the warranted product.
IMI CORNELIUS WILSHIRE ASSUMES NO LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, INCLUDING, BUT
NOT LIMITED TO, SPOILED PRODUCT, LOST PROFITS, OR DAMAGE TO OTHER PROPERTY.
THIS W ARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER W ARRANTIES, WHETHER WRITTEN, ORAL, OR IMPLIED, INCLUDING ANY
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, AND SUPERSEDES AND EXCLUDES ANY ORAL
WARRANTIES OR REPRESENTATIONS OR WRITTEN LANGUAGE IN ANY MANUAL, LITERATURE, ADVERTISING BROCHURE OR
OTHER MATERIALS NOT EXPRESSLY DESIGNATED IN WRITING AS A “WARRANTY
IMI CORNELIUS WILSHIRE
43
638085278
IMI CORNELIUS INC.
Corporate Headquarters:
Anoka, Minnesota 55303-6234
One Cornelius Place
Telephone (800) 238-3600
Facsimile (763) 422-3246
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