Cornelius Ice Maker 2400 R404A User Manual

MODULAR FLAKED ICE MAKER  
MODELS: SERIES 750 (R404a),  
SERIES 1100 (R22),  
Service Manual  
SERIES 2400 (R404a)  
Part No. 166240009  
OCTOBER 1994  
Revised October, 1996  
THIS DOCUMENT CONTAINS IMPORTANT INFORMATION  
This Manual must be read and understood before installing or operating this equipment  
PRINTED IN U.S.A  
IMI CORNELIUS INC; 10/94 - 10/95  
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TABLE OF CONTENTS (cont’d)  
LIST OF FIGURES  
Page  
2
FIGURE 1. 750 AND 1100 SERIES SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . .  
FIGURE 2. SPECIFICATIONS FOR 2400 SERIES . . . . . . . . . . . . . . . . . . . . . . . . .  
FIGURE 3. WATER LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
FIGURE 4. TYPICAL WATER CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
FIGURE 5. TYPICAL REFRIGERANT CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . .  
FIGURE 6. WIRING DIAGRAM AF/WF750MH-R . . . . . . . . . . . . . . . . . . . . . . . .  
FIGURE 7. WIRING DIAGRAM AF750PMH-50R . . . . . . . . . . . . . . . . . . . . . . . . .  
FIGURE 8. WIRING DIAGRAM AF/WF1100MH . . . . . . . . . . . . . . . . . . . . . . . . . .  
FIGURE 9. WIRING DIAGRAM RF1100MH . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
FIGURE 10. WIRING DIAGRAM AF/WF1100MH3 . . . . . . . . . . . . . . . . . . . . . .  
FIGURE 11. WIRING DIAGRAM AF/WF1100MH50 . . . . . . . . . . . . . . . . . . . . .  
FIGURE 12. WIRING DIAGRAM 2400 SERIES . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
FIGURE 13. ILLUSTRATED PARTS BREAKDOWN SERIES 750 1100 . . . . . .  
4
7
9
10  
13  
14  
15  
16  
17  
18  
19  
28  
FIGURE 14. REMOTE CONDENSER ILLUSTRATED PARTS BREAKDOWN  
FOR 1100 SERIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
29  
31  
FIGURE 15. ILLUSTRATED PARTS BREAKDOWN SERIES 2400 . . . . . . . . . . .  
LIST OF TABLES  
AF-750-P-MHR PRODUCTION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
AF-750-P-MH50R PRODUCTION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
WF-750-P-MHR PRODUCTION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
AF-1100-P-MH PRODUCTION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
WF-1100-P-MH PRODUCTION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
RF-1100-P-MH PRODUCTION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
AF-2400-P-MHR PRODUCTION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2
2
2
2
2
3
4
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INTRODUCTION  
We have strived to produce a quality product. The design has been kept simple thus insuring troublefree  
operation.  
This manual has been prepared to assist servicemen and users with information concerning installation,  
construction and maintenance of the ice making equipment. The problems of the serviceman and user have  
been given special attention in the development and engineering of our ice makers.  
If you encounter a problem which is not covered in this manual, please feel free to write or call. We will be  
happy to assist you in any way we can.  
When writing, please state the model and serial number of the machine.  
Address all correspondence to:  
A Product of IMI Cornelius Inc.  
One Cornelius Place  
Anoka, MN 553031592  
Phone 8005543526  
FAX 6124223232  
PRINTED IN USA  
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166240009  
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SPECIFICATIONS 750 AND 1100 SERIES  
23 1/8-IN.  
59-CM  
CHUTE OPENING  
8 1/4-IN.  
21-CM  
5 1/16-IN.  
13-CM  
23-IN.  
58-CM  
5-IN.  
13-CM  
FRONT  
1 1/2-IN.  
4-CM  
A
BOTTOM  
VIEW  
B
C
D
E
1 3/4-IN.  
4-CM  
26 1/4-IN.  
67-CM  
1 1/2-IN.  
4-CM  
9-IN.  
23-CM  
A = POWER INLET  
B = WATER INLET  
11 1/2-IN.  
29-CM  
2-IN.  
5-CM  
C = CONDENSER (WATER IN)  
(WC ONLY)  
D = CONDENSER (WATER OUT)  
(WC ONLY)  
E = CHASSIS DRAIN  
REAR  
VIEW  
FIGURE 1. 750 AND 1100 SERIES SPECIFICATIONS  
ICE PRODUCTION CAPACITY (approximate)  
AF-750-P-MHR PRODUCTION CHART  
AIR TEMPERATURE  
WATER TEMPERATURE  
70°F/21°C  
50°F/10°C  
80°F/27°C  
50°F/10°C  
70°F/21°C  
90°F/32°C  
873 lbs/397 kgs  
869 lbs/395 kgs  
755 lbs/343 kgs  
745 lbs/339 kgs  
738 lbs/335 kgs  
662 lbs/301 kgs  
695 lbs/316 kgs  
688 lbs/313 kgs  
609 lbs/277 kgs  
AF-750-P-MH50R PRODUCTION CHART  
WATER TEMPERATURE  
AIR TEMPERATURE  
50°F/10°C  
70°F/21°C  
80°F/27°C  
50°F/10°C  
70°F/21°C  
90°F/32°C  
748 lbs/340 kgs  
739 lbs/336 kgs  
678 lbs/308 kgs  
643 lbs/292 kgs  
635 lbs/289 kgs  
586 lbs/266 kgs  
595 lbs/279 kgs  
585 lbs/266 kgs  
542 lbs/246 kgs  
WF-750-P-MHR PRODUCTION CHART  
WATER TEMPERATURE  
AIR TEMPERATURE  
50°F/10°C  
70°F/21°C  
80°F/27°C  
50°F/10°C  
70°F/21°C  
90°F/32°C  
765 lbs/348 kgs  
748 lbs/340 kgs  
730 lbs/332 kgs  
643 lbs/292 kgs  
631 lbs/287 kgs  
621 lbs/282 kgs  
587 lbs/267 kgs  
585 lbs/266 kgs  
582 lbs/265 kgs  
AF-1100-P-MH PRODUCTION CHART  
WATER TEMPERATURE  
AIR TEMPERATURE  
50°F/10°C  
60°F/16°C  
70°F/21°C  
70°F/21°C  
80°F/27°C  
90°F/32°C  
1202 lbs/545 kgs  
1119 lbs/508 kgs  
988 lbs/448 kgs  
WF-1100-P-MH PRODUCTION CHART  
WATER TEMPERATURE  
AIR TEMPERATURE  
50°F/10°C  
60°F/16°C  
70°F/21°C  
70°F/21°C  
80°F/27°C  
90°F/32°C  
1151 lbs/523 kgs  
1123 lbs/509 kgs  
1060 lbs/467 kgs  
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ICE PRODUCTION CAPACITY (approximate)  
RF-1100-P-MH PRODUCTION CHART  
AIR TEMPERATURE  
WATER TEMPERATURE  
50°F/10°C  
60°F/16°C  
70°F/21°C  
70°F/21°C  
80°F/27°C  
90°F/32°C  
1202 lbs/545 kgs  
1119 lbs/508 kgs  
988 lbs/448 kgs  
750  
1100  
2 hp  
Compressor Electrical Rating  
Compressor Model  
Condenser  
3/4 hp  
Copeland RS64CIE-PAF-214  
Copeland CRD-10200PFV  
Air or Water Cooled  
AC25 oz R22  
WC23 oz R22  
AXV (15-17 PSI)  
AXV (15-17 PSI)  
208/230V 60HZ 1PH  
12 AMPS  
Air or Water Cooled  
AC21oz R404a  
WC18oz R404a  
AXV (30 PSI)  
AXV (28 PSI)  
115V  
Refrigerant Charge  
Refrigerant Control (Air Cooled)  
Refrigerant Control (Water Cooled)  
Voltage  
Total Amp. Draw  
16 AMPS  
Gearmotor Amp. Draw  
Gearmotor Electrical Rating  
Maximum Fuse Size  
1.6 AMPS  
.7 AMPS  
1/8 hp  
1/7 hp  
20 AMPS  
15 amps  
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SPECIFICATIONS 2400 SERIES  
OVERALL DIMENSIONS  
23-9/16-IN. HIGH x 45-1/8-IN. WIDE x 27-5/16-IN. DEEP  
17 1/2-IN.  
44-CM  
8-IN.  
20-CM  
60-CM  
115-CM  
69-CM  
44-IN.  
112-CM  
15 1/8-IN.  
38-CM  
14 1/4-IN.  
36-CM  
15 1/8-IN.  
38-CM  
ELECTRICAL  
WATER INLET  
WATER IN (W/C)  
9 1/8-IN.  
23-CM  
23 1/2-IN.  
60-CM  
WATER OUT (W/C)  
AIR IN  
8 3/4-IN.  
22-CM  
27-IN.  
69-CM  
A
B
44-IN.  
112-CM  
9 1/8-IN.  
23-CM  
A- ALTERNATE ICE DROP AREA FOR TOP UNIT WHEN TWO ARE STACKED.  
B-ICE DROP AREA FOR BASIC UNIT.  
NOTE: AIR IS EXHAUSTED OUT  
BACK AND SIDE OPPOSITE  
CONDENSER  
INDIVIDUAL A& BDIMENSIONS ARE 5-5/32-IN. x 8-9/32-IN.  
13-CM  
21-CM  
RECOMMENDED BIN TOP CUT OUT AS SHOWN ABOVE 14-1/4-IN. x 8-3/4-IN.  
22-CM  
36-CM  
FIGURE 2. SPECIFICATIONS FOR 2400 SERIES  
ICE PRODUCTION CAPACITY (approximate)  
AF-2400-P-MHRPRODUCTION CHART  
AIR TEMPERATURE  
WATER TEMPERATURE  
70°F/21°C  
50°F/10°C  
80°F/27°C  
50°F/10°C  
70°F/21°C  
90°F/32°C  
2507 lbs/1140 kgs  
2495 lbs/1134 kgs  
2095 lbs/952 kgs  
2175 lbs/989 kgs  
2045 lbs/930 kgs  
1800 lbs/818 kgs  
2008 lbs/913 kgs  
1850 lbs/841 kgs  
1680 lbs/764 kgs  
Compressor Electrical Rating  
Compressor Model  
Condenser  
2 hp  
Copeland CS14K6E-PFV-235  
Air Cooled  
Refrigerant Charge  
Refrigerant Control  
26 oz R404a/each side  
AXV 26-PSI factory  
setting/Each Side  
Voltage  
208/230 1 ph. 60 hz.  
3/8SAE male flare  
1/7 hp  
.7 amps at 230V  
40 amps  
Inlet Water Supply  
Gearmotor Electrical Rating  
Gearmotor Amp Draw  
Mamimum Fuse Size  
Total Amp Draw  
30 amps  
Refer to serial plate for maximum circuit ampacity and minimum time delay fuse size.  
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INSTALLATION INSTRUCTIONS  
You will get better service from the ice machine, longer life and greater convenience if you choose its location  
with care.  
Here are a few points to consider:  
1. Select a location as close as possible to where you are going to use the ice.  
2. Allow a minimum of 6space at sides and rear of machine for ventilation.  
3. A kitchen installation is not desirable as a rule. If a kitchen installation is necessary, locate the machine as  
far away from the cooking area as possible. Grease laden air will form a greasy deposit on the condenser.  
This reduces the ice making efficiency and necessitates thorough cleaning quite often.  
4. If you install the unit in a storeroom, be sure the room is well ventilated.  
NOTE: Do not install where the ambient and incoming water temperature will drop below 50° F rise to  
over 100° F.  
WARNING: If water pressure exceeds 50 pounds, a water pressure regulator should be  
installed in water inlet line between water shutoff valve and strainer. Minimum incoming  
water pressure required is 22 pounds.  
5. Uncrate the unit by removing the staples or nails from the bottom of the carton and lift off.  
6. Remove the bolts holding the skid to the machine.  
7. For units supplied with a bin sealing gasket, cement the gasket to the bottom outside edge of the machine  
before it is set on the bin. NOTE: This is an N.S.F. requirement and must be done by the installer.  
8. Make sure the correct bin adapter has been supplied when used. Then mount the unit on the bin and level  
both properly.  
9. For units not supplied with bin sealing gasket, seal the machine to bin with an N.S.F. approved sealant  
such as Dow R.T.V. #732, 734, or G.E. #102, 108. This is an N.S.F. requirement and is the responsibility  
of the installer.  
10. The incoming water for the ice making section requires a 3/8copper line. Connect this water line to the  
3/8male flare fitting on the back of the unit.  
NOTE: For water cooled units, a separate 3/8copper water line is required to be connected to the flare  
fitting on the back of the unit marked condenser water in. A 3/8flare connected line will have  
to be provided from the fitting marked condenser water out to the drain.  
A water regulating valve installed at the factory was set to maintain 270 to 310 PSI head pressure for R–404a  
units and 210 to 225 PSI for R–22 units (Approx. 105_ to 110_F). Check temperatures at condenser outlet and  
adjust if necessary.  
11. Connect a drain hose to the condensate drain stub tube.  
NOTE: All plumbing must be done in accordance with national and local codes.  
12. Bring the electrical supply into the unit through a handy box located on the back of unit and make  
connections.  
NOTE: NOTE: Make sure the proper voltage and number of wires are provided. See serial plate and  
make connections.  
NOTE: All wiring must conform to national and local codes.  
13. Turn on water supply and observe water level in evaporator sections. Water level is to be maintained at  
the top of the evaporator. (See adjustment procedure)  
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14. Turn machine on and check for proper voltage and amp draw on the entire unit as well as components  
such as the gearmotor and fan motor.  
15. Check refrigerant circuit and all plumbing connections for leaks, etc.  
16. Check bin thermostat or mechanical shutoff for proper operations. In the midrange the bin thermostat  
will open at 42° and has a 6° differential.  
REMOTE CONDENSER  
Remote condensers should be installed above the ice machine and in a level configuration. They are connected  
to the ice making unit by copper tubing and line valves. The female half of the line valve is mounted on the ice  
making unit and the remote condenser. The male half is soldered on the tube ends when tubing kits are  
provided with the machine. If tubing kits are not provided, the male half of the line valves will be provided in a  
valve kit and the installer will mount them on the tubing he provides.  
NOTE: WHEN VERTICAL LINES ARE INVOLVED IN THE INSTALLATION, FOLLOW STANDARD  
REFRIGERATION PRACTICES FOR VERTICAL LINES TO ASSURE POSITIVE OIL RETURN TO  
THE COMPRESSOR. VERTICAL LIFT TO BE NO MORE THAN 15 FEET.  
NOTE: WE DO NOT RECOMMEND TUBING RUNS OF MORE THAN 40 FEET..  
NOTE: The seals for the line valves will be found in an envelope on the remote condenser. Make sure  
they are used.  
NOTE: REMOVE CAP PLUGS FROM ALL LINE VALVES BEFORE MAKING VALVE CONNECTIONS WITH  
THE SEAL.  
NOTE: A LOW VOLTAGE ELECTRICAL CONTROL CIRCUIT MUST BE FIELD WIRED BETWEEN THE  
ICE MACHINE AND THE REMOTE CONDENSER RELAY. THOSE WIRES SHOULD BE RUN WITH  
THE TUBING DURING INSTALLATION. REFER TO APPLICABLE WIRING DIAGRAMS.  
NOTE: When the line valves are connected to each other the refrigerant circuit is complete. Each valve  
half has its own shut-off which must be fully opened to allow the refrigerant to flow though the  
system before it is started.  
The ice making unit utilizing a remote condenser is shipped from the factory with the receiver holding the  
refrigerant charge. Additional refrigerant may be required upon installation depending upon the ambient  
conditions the remote condenser is operating under, the condenser and line sizing.  
A three way head pressure control valve is used to maintain a relatively consistent head pressure between 175  
and 185 PSI for R22 in the receiver in cold ambient conditions. Because of this valve some liquid refrigerant will  
be held in the condenser.  
NOTE: THE HEAD PRESSURE CONTROL VALVE WILL NOT OPERATE CORRECTLY WHEN A TOTAL  
PRESSURE DROP OF 14 POUNDS OR MORE IS CREATED BETWEEN THE ICE MAKING UNIT,  
THROUGH THE TUBING TO THE REMOTE CONDENSER, THE CONDENSER AND THE RETURN  
TUBING TO THE ICE MAKING UNIT.  
The remote condenser requires a separate power supply from the ice making unit. Refer to the remote  
condenser wiring diagram.  
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WARNING: WATER LEVEL MUST BE MAINTAINED AT THE TOP OF THE EVAPORATOR.  
WATER LEVEL  
ill224  
FIGURE 3. WATER LEVEL  
1. Remove gearmotor and auger.  
2. Adjust float valve to get water level to top seam of the evaporator.  
3. Reinstall auger. WATER LEVEL WILL RISE WHEN AUGER IS INSERTED BUT WHEN THE MACHINE  
IS TURNED BACK ON AND ICE STARTS BEING MADE, THE WATER LEVEL WILL GO BACK TO THE  
ORIGINAL SETTING.  
4. Reinstall gearmotor assembly and start machine.  
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STACKING INSTRUCTIONS FOR STACKING KIT 29757  
The Kit consists of:  
1 #26102 Sealer  
2 #261 1/4-20x5/8 screw  
2 #256 1/4flat washer  
2 #239 1/4Lock Washer  
1 #29758 Stacking Chute Extension  
1. After uncrating machine to be stacked, remove front and rear panels.  
2. Remove top and front panels of bottom machine.  
3. Remove alternate chute opening cover from bottom machine.  
4. Insert vertical chute extension from kit into alternate chute opening of bottom unit and seal it to the base  
with sealer provided in the kit.  
5. Carefully mount stacking unit reversed 180° with the compressor and condenser opposite those of the  
bottom unit.  
NOTE: When mounting, make sure stacking unit vertical chute aligns and inserts correctly with chute  
extension installed in alternate chute opening of bottom unit. Raise chute bracket to cover  
opening and tighten bracket screws.  
6. Secure both machines together as shown in the illustration utilizing screws and washers provided in the kit.  
7. After stacking unit, hook up electrical and water.  
NOTE: The two units must operate independently of each other.  
8. Connect drain line from tee under the stacked unit to run out of the back of the unit.  
9. Replace panels of stacked unit front to front and back to back as the machine is mounted. Replace front  
panel of bottom unit.  
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TYPICAL WATER CIRCUIT  
The supply water enters the float chamber through a small orifice. The water level rises and lifts the buoyant  
float with it. The float attached to the float arm seats a valve to shut off any further water supply. As water  
leaves the float chamber, the level drops along with the float and arm, causing the valve to open and admit  
more water. Thus the water level is maintained automatically as the machine operates.  
Water now flows through a hose connected to the float chamber and enters the opening of the evaporator shell.  
The water level in the shell will rise to the same level that is maintained in the float chamber. The water that is  
in immediate contact with the center post evaporator will be reduced in temperature. As a result, freezing  
occurs and ice forms on the surface of the evaporator.  
As more water is frozen, the thickness of the ice increases until it exceeds the distance allowed between the  
evaporator and auger. The auger rotates at a slow speed to wipe off the accumulated ice as well as help it to  
the surface. After the ice reaches the surface it is discharged through the top opening in the shell. An ice chute  
attached to the shell conveys the ice to the storage bin where it accumulates in the insulated bin until it is used.  
The ice will pile up to a point where the bin thermostat tubing is located. When the ice touches this brass  
tubing, the unit will shutoff and remain off until enough ice is used or melted to reduce the pile. Any ice that  
melts will pass through the drain and drain hose to an open drain.  
WATER IN  
ICE  
OUT  
FLOAT  
CHAMBER  
EVAPORATOR  
CHAMBER  
FIGURE 4. TYPICAL WATER CIRCUIT  
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TYPICAL REFRIGERANT CIRCUIT  
Heat always flows from hot to cold and therefore, the heat loadsupplied to the evaporator section by water  
gives up its heat to the refrigerant which is at a temperature below the freezing point of water. This refrigerant  
now passes through the heat exchanger back to the compressor, as a low pressure vapor.  
This low pressure vapor is compressed in the compressor, as it leaves the compressor at a high pressure in  
vapor form it enters the top of the condenser. The condenser has a rapid flow of cool air across it which  
removes much of the heat from the hot refrigerant vapor.  
As the vapor, passing through the condenser, loses heat it condenses back to a liquid since it is still under high  
pressure and cooler than when it entered the condenser. The liquid refrigerant then passes through the  
drier/filter still under pressure and goes through the heat exchanger where further cooling takes place. As the  
refrigerant leaves the automatic expansion valve, the pressure has dropped, causing the refrigerant to vaporize  
and boil off as it picks up heat in the evaporator and since the pressure is low, the refrigerant will be cold.  
AXV  
HEAT  
EXCHANGER  
EVAPORATOR  
COMPRESSOR  
CONDENSER  
DRIER/FILTER  
FIGURE 5. TYPICAL REFRIGERANT CIRCUIT  
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ELECTRICAL CIRCUIT  
CIRCUIT DESCRIPTION  
As the manual onoffcircuit breaker switch is pushed to on, an electrical circuit is completed to the  
gearmotor via the circuit breaker gearmotor overload, power relay / contactor, gearmotor delay thermostat and  
the bin thermostat. After the previous circuit has been completed the condenser fan motor will start as will the  
compressor (via the high pressure control and the compressor starting relay).  
COMPONENT DESCRIPTION  
BIN THERMOSTAT  
This is electrically in serieswith the ice making system. when the bin is full, the contact opens, terminating  
power to the machine.  
GEARMOTOR START RELAY  
This is a current type relay which means as the gearmotor run winding comes onthe line, the current draw  
initially is relatively heavy through the relay coil (coil is in series with run winding). It then acts like a normal  
relay and the N.O. start contact makes, completing a circuit through the start capacitor to the start winding.  
As the gearmotor picks up speed, the amp draw through the relay coil drops off allowing the armature to return  
to its normal position (start contact opens). This action removes the start winding from the circuit.  
POWER RELAY / CONTACTOR  
This relay controls the compressor power only.  
GEARMOTOR DELAY THERMOSTAT  
This thermostat keeps the gearmotor running until the suction line temperature reaches 45_ after the full bin  
switch terminates power to the power relay / contactor.  
ONOFF SWITCH / CIRCUIT BREAKER  
This switch interrupts power to the entire unit. The switch has a circuit breaker incorporated into itsdesign.  
This circuit breaker will trip out in the event the gearmotor draws to high of amps In such an event the power is  
interrupted to the unit. To reset the circuit breaker and reestablish power to the unit, push the switch to the off”  
position and then back to the onposition.  
FAN CYCLING SWITCH (R404a Units)  
The function of this switch is to maintain condensing pressures at a satisfactory level duringlow ambient  
conditions. The switch breaks the circuit to the condenser fan motor at 205 PSI and makes the circuit at 275  
PSI.  
HIGH PRESSURE CONTROL  
The high pressure cut out is electrically in series with the power relay. As the head pressure rises to 450 PSIG  
for R404a charged units and 400 PSIG for R 22 charged units, a preset level, the contact opens thus breaking  
the circuit to the compressor via the power relay contactor. This control must be reset manually on R404a units.  
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COMPRESSOR START RELAY  
This is a current type relay and contains a N.O. contact which is connected in series with the start winding of the  
compressor. The relay coil is electrically in series with the run winding. When power is applied, the compressor  
draws high current which sets up a magnetic field around the magnet coil which causes the relay to operate,  
closing the relay contact. As the compressor approaches operating speed, the current flowing through the coil  
decreases, permitting the relay contact to open, thereby opening the starting circuit.  
POTENTIAL RELAYS  
The potential relay is used as a compressor starting relay, The contact in the potential relay is N.C.. The  
magnet coil is connected across (parallel) the start winding and is affected by induced voltage, generated by the  
start winding. As the compressor comes up to design speed, the voltage across the relay coil increases and at  
running speed is sometimes as much as 2 1/2 times the supply voltage. This voltage sets up a magnetic field  
which causes the relay to operate. The starting relay is calibrated to remove the start capacitor (open the  
starting circuit) at approximately 85% of the motor design speed.  
NOTE: BOTH TYPES OF RELAYS ARE DESIGNED TO OPERATE WITHIN VERY NARROW LIMITS OF  
VOLTAGE AND CURRENT DICTATED BY MOTOR DESIGN, THEREFORE, WHEN MAKING A  
REPLACEMENT OF A RELAY ALWAYS PROVIDE AN EXACT REPLACEMENT, RECOMMENDED  
BY THE COMPRESSOR MANUFACTURER.  
CAPACITORS GENERAL  
An electrical capacitor is a device which stores up electrical energy. Capacitors are used with single phase  
motors to provide starting torque and improve running characteristics; by feeding this energy to the start winding  
in step with the run winding.  
Any capacitor has three (3) essential parts, two (2) of which are usually foil plates separated and insulated by  
the third part called the dielectric.  
Two general types of capacitors are used with electric motors. The electrolytic starting capacitor usually uses a  
very thin film of oxide on the metallic plate as the dielectric. The running capacitor usually is of the liquid filled  
type.  
166240009  
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YL  
BL  
YL  
BL  
BL  
OUTLET  
BOX  
ON-OFF SWITCH  
CIRCUIT BREAKER  
RATED 2.0 AMPS  
GR  
BK  
BL  
BL  
WH  
WH  
YL  
BL  
DELAY  
THERMOSTAT  
BL  
GEAR  
MOTOR  
BIN  
THERMOSTAT  
GEAR MOTOR  
START CAPACITOR  
64-77 MFD 165 VAC  
3
YL  
BK  
M
4
2
RD  
RD  
RD  
RD  
GEAR MOTOR  
START RELAY  
WH  
FAN MOTOR  
BK  
BK  
BK  
M
BL  
BL  
LOW AMBIENT  
(A/C ONLY)  
COMPRESSOR  
START CAPACITOR  
72-86 MFD 330 VAC  
SWITCH  
CONTROL  
HIGH PRESSURE  
COMPRESSOR  
RD  
YL  
COMPRESSOR  
OVERLOAD  
WH  
R
C
S
1
YL  
OR  
COMPRESSOR  
RUN CAPACITOR  
30 MFD 440 VAC  
BL  
1
2
WH  
WH  
BK  
5
BK  
WH  
CONTACTOR  
COMPRESSOR  
START RELAY  
AF/WF-750-MH-R  
115 VOLTS 60 Hz  
FIGURE 6. WIRING DIAGRAM AF/WF750MH-R  
13  
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YL  
BL  
OUTLET  
BOX  
ON-OFF SWITCH  
CIRCUIT BREAKER  
RATED 1.5 AMPS  
BL  
GN/Y  
RD  
BK  
LB  
BR  
BL  
YL  
GEAR MOTOR  
START RELAY  
BL  
BL  
DELAY  
THERMOSTAT  
YL  
GEAR  
MOTOR  
BIN  
THERMOSTAT  
3
BK  
GEAR MOTOR  
START  
CAPACITOR  
YL  
M
2
4
RD  
RD  
RD  
RD  
GN/Y  
RD  
FAN MOTOR  
BK  
BK  
BK  
M
BL  
WIRE NUT  
FAN SWITCH  
CONTROL  
HIGH PRESSURE  
GN/Y  
COMPRESSOR  
OVERLOAD  
COMPRESSOR  
RD  
R
1
C
S
COMPRESSOR  
START CAPACITOR  
88-106 MFD 220 V  
BL  
RD  
YL  
BK  
RD  
GN/Y  
BL  
BK  
L
BR  
RD  
S
COMPRESSOR  
START RELAY  
LB  
M
CONTACTOR  
RD  
AF750PMH-50-R  
220 VOLTS 50 Hz  
FIGURE 7. WIRING DIAGRAM AF750PMH-50R  
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YL  
BL  
BL  
OUTLET  
BOX  
ON-OFF SWITCH  
CIRCUIT BREAKER  
RATED 1.5 AMPS  
GR  
RD  
BK  
BL  
RD  
YL  
BK  
GEAR MOTOR  
START  
CAPACITOR  
BL  
DELAY  
THERMOSTAT  
RD  
GEAR  
MOTOR  
BIN  
THERMOSTAT  
BK  
RD  
RD  
4
3
2
YL  
M
BL  
RD  
RD  
FAN MOTOR  
A/C ONLY  
GEAR MOTOR  
START RELAY  
BK  
BK  
BK  
RD  
M
BK  
EVAPORATOR HEATER  
RD  
BK  
CONTROL  
HIGH PRESSURE  
(W/C ONLY)  
COMPRESSOR  
START  
CAPACITOR  
COMPRESSOR  
RUN  
CAPACITOR  
RD  
COMPRESSOR  
RD  
RD  
YL  
BK  
R
C
S
RD  
BK  
YL  
RD  
OR  
RD  
BK  
BK  
2
5
RD  
COMPRESSOR  
START RELAY  
1
POWER RELAY  
AF/WF-1100-MH  
208/230 VOLTS 60 Hz  
FIGURE 8. WIRING DIAGRAM AF/WF1100MH  
15  
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YL  
BL  
BL  
OUTLET  
BOX  
ON-OFF SWITCH  
CIRCUIT BREAKER  
RATED 1.5 AMPS  
GW  
RD  
BK  
BL  
RD  
YL  
GEAR MOTOR  
START RELAY  
BK  
BL  
DELAY  
THERMOSTAT  
BL  
RD  
GEAR  
MOTOR  
BIN  
THERMOSTAT  
3
BK  
GEAR MOTOR  
START  
CAPACITOR  
YL  
M
2
4
RD  
RD  
RD  
RD  
BK  
M
COOLING  
FAN MOTOR  
BK  
24V FIELD  
WIRING  
RD  
WH  
POWER  
RELAY  
CLASS II  
TRANSFORMER  
CONTROL  
HIGH PRESSURE  
230V  
M
RD  
FAN  
MOTOR  
REMOTE  
CONDENSER  
RD  
COMPRESSOR  
RUN  
CAPACITOR RD  
COMPRESSOR  
START  
CAPACITOR  
BK  
RD  
BK  
COMPRESSOR  
RD  
BK  
R
S
BK  
C
RD  
YL  
YL  
BK  
RD  
BK  
OR  
1
5
RD  
COMPRESSOR  
START RELAY  
2
CONTACTOR  
CRANKCASE HEATER  
RF-1100-MH  
208/230 VOLTS 60 Hz  
FIGURE 9. WIRING DIAGRAM RF1100MH  
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YL  
BL  
BL  
OUTLET  
BOX  
ON-OFF SWITCH  
CIRCUIT BREAKER  
RATED 1.5 AMPS  
GR  
YL  
RD  
BK  
BL  
BL  
RD  
BK  
GEAR MOTOR  
START RELAY  
BL  
BL  
DELAY  
THERMOSTAT  
GEAR  
MOTOR  
RD  
BIN  
THERMOSTAT  
3
BK  
GEAR MOTOR  
START  
CAPACITOR  
YL  
M
2
4
RD  
RD  
RD  
RD  
RD  
BK  
FAN MOTOR  
M
RD  
CONTROL  
HIGH PRESSURE  
(W/C ONLY)  
BL  
RD  
BK  
RD  
BK  
BK  
RD  
RD  
BK  
COMPRESSOR  
M
BL  
CONTACTOR  
AF/WF-1100-MH-3  
3 PHASE 208/230 VOLTS 60 Hz  
FIGURE 10. WIRING DIAGRAM AF/WF1100MH3  
17  
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YL  
BL  
BL  
OUTLET  
BOX  
ON-OFF SWITCH  
CIRCUIT BREAKER  
RATED 1.5 AMPS  
GW  
RD  
BK  
BL  
BL  
LB  
YL  
GEAR MOTOR  
START RELAY  
BR  
BL  
DELAY  
THERMOSTAT  
GEAR  
MOTOR  
RD  
BIN  
THERMOSTAT  
3
BK  
GEAR MOTOR  
START  
CAPACITOR  
YL  
M
2
4
RD  
RD  
RD  
RD  
RD  
FAN MOTOR  
BK  
M
RD  
CONTROL  
HIGH PRESSURE  
(W/C ONLY)  
COMPRESSOR  
RUN  
CAPACITOR  
COMPRESSOR  
START  
CAPACITOR  
LB  
COMPRESSOR  
RD  
RD  
YL  
BR  
RD  
R
C
S
YL  
BK  
BK  
RD  
BK  
BK  
OR  
1
5
RD  
RD  
COMPRESSOR  
START RELAY  
2
CONTACTOR  
AF/WF-1100-MH-50  
240 VOLTS 50 Hz  
FIGURE 11. WIRING DIAGRAM AF/WF1100MH50  
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RD  
RD  
RD  
BK  
COMPRESSOR  
RUN  
COMPRESSOR  
RUN  
COMPRESSOR  
START  
COMPRESSOR  
START  
CAPACITOR  
145-174 MFD  
250V  
GW  
CAPACITOR  
35 MFD  
370V  
CAPACITOR  
35 MFD  
370V  
CAPACITOR  
145-174 MFD  
250V  
COMPRESSOR  
COMPRESSOR  
RD  
RD  
RD  
YL  
RD  
R
R
C
S
C
S
SYSTEM 2  
CONTACTOR  
SYSTEM 1  
CONTACTOR  
YL  
YL  
YL  
BK  
BK  
RD  
WH  
WH  
RD  
BK  
BK  
BK  
2
2
5
5
COMPRESSOR  
START RELAY  
COMPRESSOR  
START RELAY  
BK  
1
1
YL  
YL  
MAIN  
ON-OFF  
SWITCH  
BL  
BL  
HIGH  
RD  
BK  
PRESSURE  
SWITCH  
CO 450  
HIGH  
PRESSURE  
SWITCH  
CO 450  
RD  
ON-OFF SWITCH  
CIRCUIT BREAKER  
RATED 1.5 AMPS  
RD  
ON-OFF SWITCH  
CIRCUIT BREAKER  
RATED 1.5 AMPS  
OR  
BIN  
THERMOSTAT  
BL  
BL  
BIN LIMIT  
THERMOSTAT  
BL  
YL  
YL  
YL  
LOW  
WATER  
PRESSURE  
SWITCH  
CI 20 CO 10  
YL  
BK  
BK  
YL  
BL  
YL  
COND.  
FAN  
M
GEAR  
MOTOR  
SYSTEM 1  
GEAR  
MOTOR  
START  
RELAY  
GEAR  
MOTOR  
LOW AMBIENT  
M
M
GEAR  
MOTOR  
START  
GEAR  
PRESSURE  
SWITCHES  
CI 275  
MOTOR  
START  
RELAY  
4
BK  
WH  
BK  
BK  
BL  
CAPACITOR  
CO 205  
BK  
RD  
RD  
A/C  
ONLY  
3
RD  
2
BK  
BL  
RD  
RD  
BL  
BK  
BL  
SYSTEM 2  
BK  
4
3
2
BK  
GEAR MOTOR  
& COMPRESSOR  
CONTROL RELAY  
GEAR  
OR  
BK  
MOTOR  
START  
CAPACITOR  
GEAR MOTOR  
DELAY  
THERMOSTAT  
GEAR MOTOR  
DELAY  
THERMOSTAT  
1
3
4
6
BL  
BL  
RD  
YL  
RD  
YL  
AF/WF-2400 PMHR DUAL COMPRESSORS  
208/230 VOLTS 1 PHASE  
FIGURE 12. WIRING DIAGRAM 2400 SERIES  
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MAINTENANCE  
THE FOLLOWING MAINTENANCE SHOULD BE PERFORMED AT LEAST EVERY SIX MONTHS ON  
FLAKED ICE MACHINES:  
1. Check power supply with machine running for proper voltage.  
2. Check water level in the float tank reservoir. Water level should be maintained at the top of the evaporator.  
Adjust if necessary. (See illustration and adjustment procedure)  
3. Clean the aircooled condenser coil with a stiff brush or vacuum cleaner (See procedure)  
CAUTION: CONDENSER COOLING FINS ARE SHARP, USE CARE WHEN CLEANING.  
4. Clean the ice storage bin and flush the bin drain at least once a month.  
5. If a water conditioner is installed in the inlet water line, change, replace, or clean the filter, strainer or car-  
tridge as required.  
6. If heavy mineral deposits on the auger and evaporator shell are encountered due to bad local water condi-  
tions, follow sanitizing and cleaning procedure.  
7. Loosen holddown cam locks and remove gearmotor assembly.  
8. Check thrust washer; replace if noticeably worn.  
9. Lift out auger and examine for wear. The corkscrew auger guide bushing pressed into the drive block  
should be checked for wear. Replace if loose or if worn flat with auger drive block. If the Helix auger on  
the corkscrew auger round bar becomes flat on the inside more than 1/8 of an inch over a length of two  
inches or more it should be replaced.  
NOTE: HELIX AUGERS DO HAVE MACHINED FLAT RELIEF SURFACES. DONT CONFUSE THEM WITH  
WORN FLAT AREAS.  
Check the insert in the bottom ring of the Helix auger and replace if excessively worn.  
10. Check shell vertical strips for wear. Replace the shell if excessive wear is shown.  
11. Check ORing, replace if worn or cut.  
12. Reassemble, steps 7through 11.  
CAUTION: IN REASSEMBLING THE AUGER GEARMOTOR, THE HOLD DOWN CLAMPS  
MUST BE RIGHT AND SECURE. IN REINSTALLING THE EVAPORATOR SHELL, BE  
ABSOLUTELY SURE THAT THE ORING IS NOT PINCHED OFF AS THIS WOULD CAUSE A  
WATER LEAK AROUND THE BASE OF THE EVAPORATOR. LUBRICATE THE ORING WITH  
FOOD GRADE LUBRICANT BEFORE REASSEMBLING SHELL.  
13. Check for alignment of ice chute. Make sure chute gasket is not blocking path of ice flow.  
14. Check bin thermostat operation. In the midrange position the bin thermostat will open at 42_ and has a  
6_ differential.  
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SANITIZING AND CLEANING PROCEDURE  
1. Turn switch to OFFto stop unit.  
2. Remove top cabinet panel.  
CAUTION: Hazardous moving parts. Do not operate unit with panel removed.  
3. Mix sanitizing solution by using 0.5-ounces of household liquid bleach (such as Hi-Lex or Chlorox) to one  
gallon of potable water. This mixture must not exceed 200-ppm of chlorine.  
4. Turn water OFF. Remove water hose from float chamber and allow all water to drain from the float  
chamber and evaporator. Restore hose to float chamber and add sanitizing solution to the float chamber.  
Turn water ON.  
OR  
Remove float chamber cover and while holding float up to prevent water from entering the chamber, re-  
move water hose and allow all water to drain from the float chamber and evaporator. Restore hose to float  
chamber and add sanitizing solution to the float chamber.  
5. Reinstall float chamber cover.  
6. Remove vertical ice chute cover.  
7. With a plastic bristle brush and sanitizing solution, scrub the interior of the vertical ice chute, including the  
interior and exterior of the evaporator chute that extends into the vertical chute. Also scrub the vertical  
chute cover and sensor tube. Allow all parts to air dry.  
8. Reinstall the vertical chute cover and cabinet top panel.  
9. Turn switch to ONand allow unit to make ice.  
10. Remove or melt with warm water, all ice inside of bin.  
11. Using the sanitizing solution from step 7 and brush, scrub the interior of the ice bin including the underside  
of the ice bin cover. Scrub the outside of the ice chute that protrudes into the ice bin, and the inside and  
outside of the ice bin door.  
12. Rinse interior of the ice bin with clean water.  
13. Allow machine to make ice for at least 1/2 hour then discard all the ice made. DO NOT ALLOW ICE WITH  
SANITIZER IN IT TO BE USED.  
21  
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WATER TREATMENT  
During the freezing process, as water passes under the freezing plate, the impurities in the water have a ten-  
dency to be rejected and the plate will freeze only the pure water.  
However, the more dissolved solids in the water, the more troublesome the freezing operation will be. Bicarbon-  
ates in the water are the most troublesome of the impurities. These impurities will cause scaling on the evapo-  
rator, clogging of the water distributor head, float valve mechanism and other parts in the water system. If the  
concentration of impurities is high, cloudy cubes or mushy ice may be the result.  
Parts of the ice maker, that are in contact with the water or ice, may corrode if the water is high in acidity. In  
some areas, water may have to be treated in order to overcome some of the problems that arise because of the  
mineral content.  
IMI Cornelius has water filter/treatment systems available to control impurities found in your water supply. Con-  
tact your local dealer for more information.  
WINTER STORAGE  
If the unit is to be stored in an area where the temperature will drop below freezing, it is most important that all  
water lines be drained to prevent them from freezing and possible rupture.  
To blow out the water line, disconnect the water supply at the cabinet inlet and use air pressure to force the wa-  
ter into the water reservoir pan. This can then be removed from the water pan.  
WATER COOLED CONDENSER To remove water from condenser unhook water supply and attach com-  
pressed air hose. Start machine. As head pressure reaches the appropriate level opening the water regulating  
valve, the compressed air will force the water out. Do not let the machine operate longer than necessary.  
CLEANING THE CONDENSER (AIR COOLED)  
In order to produce at full capacity, the refrigeration condenser must be kept clean. The frequency of cleaning  
will be determined by surrounding condition. A good maintenance plan calls for an inspection at least every two  
months.  
Remove the unit compartment grill at the front. With a vacuum cleaner, remove all accumulated dust and lint  
that has adhered to the finned condenser.  
CAUTION: CONDENSER COOLING FINS ARE SHARP. USE CARE WHEN CLEANING.  
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TROUBLESHOOTING  
Trouble  
Probable Cause  
Remedy  
UNIT WILL NOT RUN  
A. Onoff switch in offposition.  
B. Defective onoff switch.  
C. Blown fuse.  
A. Turn switch to on.  
B. Check and replace.  
C. Replace fuse and check for cause  
of blown fuse.  
D. Thermostat set too warm for  
ambient.  
D. Adjust colder.  
E. Power relay contacts  
corroded.  
E. Check and clean.  
F. Defective thermostat.  
F. Check and replace.  
G. Check wiring.  
G. Loose electrical connection.  
H. Gearmotor overload protector  
has cut off machine.  
H. Turn switch to off then to on.  
COMPRESSOR CYCLES  
INTERMITTENTLY.  
A. Low voltage.  
A. Check line voltage.  
B. Dirty condenser.  
B. Clean condenser.  
C. Remove restriction.  
D. Check and replace.  
C. Air circulation restricted.  
D. Defective condenser fan  
motor.  
E. Defective relay, overload  
protector or starting capacitor.  
E. Check and replace.  
F. Check wiring.  
F. Loose electrical connection  
23  
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Trouble  
Probable Cause  
Remedy  
MAKING WET ICE.  
A. Surrounding air temperature  
too high.  
A. Correct or move unit  
B. High water level in float  
reservoir.  
B. Lower water level, see step 2,  
page 5  
C. Dirty condenser.  
D. Faulty compressor.  
E. Refrigerant leak.  
C. Clean condenser  
D. Check and replace  
E. Check and repair  
F. Check and replace  
F. Oring leaking at bottom of  
evaporator shell.  
*NOTE: Special care must be used with R404a (HP62) charged systems using (POE) Polyolester oil.  
The refrigeration system must not be open longer than 15 min., and the appropriate drier must be used  
due to the moisture absorption properties of the POE oil.  
UNIT RUNS BUT MAKES NO  
ICE.  
A. Leak in refrigerant system.  
B. Moisture in system.  
C. No water.  
A. Check and repair.  
B. Check, dehydrate and add drier to  
system.  
C. Check water supply.  
D. Oring leaking at bottom of  
D. Check and replace Oring.  
evaporator shell.  
E. Compressor not running.  
A. Worn or bad float valve.  
E. Check and replace Oring  
WATER LEAKS.  
A. Check and replace.  
B. Float and arm assembly stuck. B. Check and adjust or replace.  
C. Oring leaking at bottom of  
C. Check and replace.  
evaporator shell.  
D. Storage bin drain and tubing.  
D. Check and repair.  
EXCESSIVE NOISE OR  
CHATTERING.  
A. Mineral or scale deposits on  
inside of evaporator shell.  
A. Remove and clean inside  
surfaces by immersing evaporator  
shell in ice machine cleaner.  
B. Intermittent water supply .  
B. Check inlet water line .  
C. Water level in float tank too  
low.  
C. Check and adjust water level.  
D. Auger gearmotor endplay or  
D. Repair or replace.  
worn bearings.  
E. Air lock in gravity water supply E. Check and adjust warmer.  
line from float tank to  
evaporator shell.  
MACHINE RUNS WITH FULL  
BIN OF ICE.  
A. Storage bin thermostat set too A. Check and adjust warmer.  
cold.  
B. Bin thermostat thermowell out B. Adjust thermowell.  
of path of ice.  
166240009  
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Trouble  
Probable Cause  
Remedy  
UNIT OFF OR TRIPS CIRCUIT A. Ice jams up in evaporator  
BREAKER. shell.  
A. Clean inside surface of  
evaporator shell.  
B. Bin thermostat will not shutoff B. Check and adjust or replace .  
machine. Set too cold.  
C. Auger motor has worn  
bearings.  
C. Check and replace.  
D. Ice chute out of alignment,  
restricted ice flow out of  
evaporator section.  
D. Realign.  
E. Ice chute center separator  
bent restricting ice flow out of  
evaporator section .  
E. Replace ice chute .  
F. Incoming water temperature  
too cold.  
F. Maintain temperature above 50°F.  
G. Bin thermostat does not  
G. Replace bin thermostat if  
necessary.  
shutoff when bin is full of ice.  
H. Mineral or scale deposits on  
inside of evaporator shell and  
evaporator.  
H. Inspect and clean.  
I.  
Strips loose or missing on  
inside of evaporator shell.  
I.  
Inspect and replace evaporator  
shell if necessary.  
J. Low ambient temperature in  
room where unit is located.  
J. Maintain temperature above 50°.  
K. Gearmotor sticking which  
causes it to draw excessive  
amperage.  
K. Check amp draw of gearmotor  
with an amprobe (1.6 amps) at  
115V, (.7 amps) 230V for normal  
loaded amps.  
25  
166240009  
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Trouble  
Probable Cause  
Remedy  
UNIT GOES OFF OR TRIPS  
CIRCUIT BREAKER. (CONTD)  
L. Plugged expansion valve, or  
capillary tube causing low back  
pressure.  
L. Check back pressure, replace  
valve or capillary tube. Evacuate  
and recharge system, replace  
drierstrainer.  
M. Slight leak, causing low back  
pressure.  
M. Check back pressure, find gas  
leak, repair leak, evacuate  
system, add drier and recharge.  
N. Loose holddown assy.  
N. Check and tighten or replace.  
O. Auger worn excessively on the O. Replace auger.  
inside surfaces causing thicker  
flaked ice to be made.  
P. Auger out of line causing  
excessive wear on the lower  
outside surface where it rubs  
against evaporator shell liner  
at the bottom.  
P. Replace auger and evaporator  
shell.  
Q. Broken auger  
Q. Replace auger.  
R. Evaporator surfaces worn or  
gouged, causing thicker ice to  
be made.  
R. Inspect and replace evaporator if  
necessary.  
S. Auger guide bushing worn  
down.  
S. Replace auger guide bushing  
(corkscrew type augers only).  
T. Loose gearmotor mounting  
place.  
T. Check and tighten.  
U. Low water level in float tank  
reservoir.  
U. Adjust float arm to maintain  
correct water level.  
V. Worn thrust washer.  
V. Replace.  
W. Gearmotor Delay Thermostat  
does not keep gearmotor  
running after Bin Thermostat  
shuts down.  
W. Check operation and / or replace.  
166240009  
26  
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PARTS LIST FOR 750 AND 1100 SERIES  
ILL.  
NO .  
1
DESCRIPTION  
Shroud, condenser  
1100  
750  
110050Hz  
27597  
75050Hz  
161890012  
161870004  
163183006  
165595003  
161871003  
N/A  
27597  
161890012  
161870004  
163183006  
165595003  
161871003  
22429  
2
Condenser  
26266  
37977  
26266  
3
Bracket, fan motor  
Blade, condenser fan  
Motor, condenser fan  
Coil, condenser  
37977  
4
23527  
23527  
5
35961  
35961  
6
22499  
22499  
7
Clamp, condenser coil  
Bracket, coil mounting  
Drier  
35987  
35987  
35987  
N/A  
8
36836  
36836  
36836  
N/A  
9
21850  
166184002  
164980002  
25871  
21850  
166184002  
N/A  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
Valve, water regulating  
Clip, delay thermostat  
Thermostat, gearmotor delay  
Pad  
01211  
01211  
25871  
25871  
25871  
25864  
25864  
25864  
25864  
26124  
26124  
26124  
26124  
Holddown, evaporator  
Evaporator  
163277003  
42597  
163277002  
41100  
163270003  
42597  
163270002  
41100  
ORing  
03120  
03120  
03120  
03120  
Auger  
21078  
03796  
21078  
03796  
Shell  
162966001  
27653  
09182  
162966001  
27653  
09182  
Valve, automatic expansion  
Thrust washer  
161921004  
08043  
161921004  
08043  
21711  
21711  
Gearmotor assembly  
Disc, centering  
164826003  
20956  
164826001  
20956  
164826003  
20956  
164826002  
20956  
Chute, vertical  
27599  
27598  
27599  
27599  
Float tank assembly  
Float & valve only  
21789  
21789  
21789  
21789  
21924  
21924  
21924  
21924  
Screw, wing  
00890  
00890  
00890  
00890  
Gasket, chute  
08065  
08065  
08065  
08065  
Chute, inclined ice  
Compressor (1PH)  
Compressor (3PH)  
Cover, vertical chute  
Control, high pressure  
Control, low ambient fan  
Relay, power (1PH)  
Relay, power (3PH)  
Compressor cooling fan motor (not shown)  
Thermostat, bin  
20885  
09287  
20885  
09287  
40569  
162964013  
N/A  
40569  
162964041  
N/A  
41166  
N/A  
30  
31  
32  
33  
42316  
29299  
42316  
29299  
07024  
165677006  
165677005  
164884002  
N/A  
07024  
165677006  
165677005  
40713  
23838  
23838  
40713  
40713  
35547  
N/A  
N/A  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
23308  
N/A  
23308  
N/A  
09570  
09570  
09570  
09570  
Capacitor, compressor run  
Capacitor, compressor start  
Capacitor, gearmotor start  
Switch, onoff / Circuit Breaker  
Relay, compressor start  
Relay, gearmotor start  
Compressor cooling fan blade (not shown)  
Plate, gearmotor mounting  
Valve, Service  
27765  
161192004  
161165008  
161165000  
166220001  
161998009  
161627001  
N/A  
27765  
N/A  
40284  
40284  
25335  
37909  
37909  
29519  
166220000  
40285  
166220000  
40285  
166220000  
161998012  
161627003  
N/A  
161627003  
09355  
161627003  
09355  
03163  
03163  
03163  
03163  
N/A  
162978003  
163652068  
27654  
N/A  
162978003  
163652068  
N/A  
Top panel  
163652068  
27654  
163652068  
27654  
Top panel, stainless steel  
Front panel  
46  
47  
48  
49  
163498068  
27655  
163498068  
27655  
163498068  
27655  
163498068  
N/A  
Front panel, stainless steel  
Left side panel  
163653068  
27657  
163653068  
27657  
163653068  
27657  
163653068  
N/A  
Left side panel, stainless steel  
Right side panel  
163654068  
27670  
163654069  
27670  
163654068  
27670  
163654069  
N/A  
Right side panel, stainless steel  
Back panel  
163499068  
27656  
163499068  
27656  
163499068  
27656  
163499068  
N/A  
Back panel, stainless steel  
Switch, Fan Cycling  
Switch, High Pressure Control  
50  
51  
N/A  
165677005  
165677006  
N/A  
165677005  
165677006  
N/A  
N/A  
27  
166240009  
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45  
49  
47  
5
25  
7
9
29  
24  
30  
4
12  
43  
3
11  
28  
2
21  
19  
8
6
1
23  
22  
26  
16  
27  
20  
15  
14  
34  
31  
35  
33  
13  
32  
41  
42  
18  
39  
36  
37  
46  
40  
38  
48  
17  
51  
10  
44  
50  
ill227  
FIGURE 13. ILLUSTRATED PARTS BREAKDOWN SERIES 750 1100  
166240009  
28  
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1
2
3
4
5
6
7
9
8
13  
14  
12  
10  
11  
FIGURE 14. REMOTE CONDENSER ILLUSTRATED PARTS BREAKDOWN FOR 1100 SERIES  
ILL. NO.  
PART NO.  
27334  
27149  
27576  
27183  
27185  
27384  
27181  
27379  
27345  
42145  
42624  
42202  
42278  
42277  
DESCRIPTION  
Condenser  
1
2
Shroud  
3
Frame assy  
4
Fan blade  
5
Motor, fan  
6
Bracket, fan motor mounting  
Relay  
7
8
Cover, electrical box  
Electrical box assy  
CNNQuick, male  
CNNQuick, male  
Bracket, connector  
Tube Condenser In  
Tube Condenser Out  
9
10  
11  
12  
13  
14  
29  
166240009  
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PARTS LIST 2400 SERIES  
ITEM NO  
1
DESCRIPTION  
Condenser A/C  
PART NO.  
161870011  
164820021  
27185  
2
Fan mounting bracket  
Fan motor  
3
4
Fan blade  
27183  
5
Drier  
166184002  
26124  
6
Masonite Pad  
7
Holddown  
163277003  
42597  
8
Evaporator  
9
Evaporator ORing  
Auger  
03120  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
21078  
Shell L.H.  
162966001  
162966002  
161921010  
21711  
Shell R.H.  
Automatic expansion valve  
Thrust washer  
Gearmotor  
164826003  
166205001  
42328  
Vertical chute cover  
Vertical chute  
Water reservoir  
35225  
Float & valve  
27156  
Hose  
35771  
Float mounting bracket  
Compressor  
35231  
162964029  
20421  
Thermowell end cap  
Fan Cycling Switch  
Delay thermostat  
Delay thermostat clip  
Contactor  
165677006  
25864  
25871  
40713  
Capacitor, compressor start  
Gearmotor start relay  
Gearmotorcompressor control relay  
Bin thermostat  
40284  
161627003  
35548  
09570  
Onoff switch/Circuit breaker  
Gearmotor start capacitor  
Water pressure switch  
Compressor run capacitor  
Gearmotor mounting plate  
Centering disc  
166220000  
37909  
165677007  
27765  
03163  
20956  
Compressor start relay  
Main power switch  
Reservoir cover  
High pressure control switch  
Chute  
40285  
35546  
35230  
165677005  
20885  
Chute gasket  
08065  
Screw, chute mounting  
00890  
CABINET PARTS NOT ILLUSTRATED 2400 SERIES  
Description  
Part No.  
163494068  
163493068  
163492068  
163491068  
163490068  
Top cover  
Front panel  
Right side panel  
Left side panel  
Rear panel  
166240009  
30  
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41  
24  
43  
15  
36  
42  
25  
26  
38  
27  
38  
35  
33  
28  
37  
16  
35  
33  
28  
36  
11  
14  
44  
34  
37  
14  
10  
12  
32  
39  
10  
21  
19  
23  
13  
29  
30  
29  
31  
18  
20  
32  
40  
4
17  
8
3
5
9
20  
6
7
22  
13  
8
7
6
5
2
1
FIGURE 15. ILLUSTRATED PARTS BREAKDOWN SERIES 2400  
31  
166240009  
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CORNELIUS LIMITED COMMERCIAL WARRANTY PLAN  
TO THE ORIGINAL OWNER OF A CORNELIUS COMMERCIAL FLAKE ICEMAKER  
This warranty applies to Icemakers installed within the United States, Canada, Mexico and Puerto Rico  
only.  
For warranty information outside the U.S., Canada, Mexico and Puerto Rico, contact your nearest IMI Cornelius  
Sales Office.  
PARTS WARRANTY PERIOD  
IMI CORNELIUS INC., hereinafter referred to as CORNELIUS, warrants to the original owner of a new CORNELIUS commercial flake ice  
machine (Machine) who buys solely for commercial uses, that the Machine shall be free from defects in material and/or factory workmanship if  
properly installed, operated and maintained, under normal and proper use and service conditions with competent supervision. The parts  
warranty period is two years (24 months) from the date of installation or 27 months from the date of shipment by CORNELIUS whichever time  
period elapses first. With respect to compressor and the evaporator, and the evaporator only for refrigeration leaks and restrictions which  
would effect the normal operation of the unit, the warranty period will be five years (60 months) from the date of installation or 63 months from  
the date of shipment by CORNELIUS whichever time period elapses first. The obligation of CORNELIUS under this warranty is limited to repair  
or replacement (at the option of CORNELIUS) FOB factory in Mason City, Iowa of the part (or Parts) of any Machine that is proven defective.  
LIMITED LABOR WARRANTY PERIOD  
In addition to the parts warranty, CORNELIUS will pay scheduled straight time labor to repair or replace a defective component when failure  
occurs within one year (12 months) from the date of installation or 15 months from the date of shipment by CORNELIUS whichever time period  
elapses first. With respect to the compressor, evaporator, refrigeration condenser, condenser fan motor, and auger gearmotor, the labor  
warranty period will be two years (24 months) from the date of installation or 27 months from the date of shipment by CORNELIUS whichever  
time period elapses first. Time and rate schedules for labor compensation will be published periodically by CORNELIUS. Additional expenses  
including but not limited to travel time, truck charges, overtime charges, material cost, accessing or removal of the ice machine,  
normal prescribed maintenance cleaning, adjustments, and ice purchases are the responsibility of the original owner.  
No parts warranty or labor allowance on the motor compressor assembly will apply when the ice machines refrigeration system is modified with  
a condenser heat reclaim device, or parts and assemblies not provided by CORNELIUS, unless CORNELIUS provides approval, in writing, for  
these modifications for specific locations.  
The parts warranty shall not apply when destruction or damage is caused by alterations, unauthorized service, using other than factory  
authorized replacement parts, risks of transportation, accidents, misuse, damage by fire, flood or acts of God. No components or assembly  
from which the serial number or identification number has been altered or removed will be covered. Any defective parts to be repaired or  
replaced must be returned to us through a CORNELIUS distributor/dealer, transportation charges prepaid, and they must be properly sealed  
and tagged. The serial and model number of the Machine and the date of original installation of such Machine must be given. The warranty of  
repaired or replaced parts will not extend beyond the period of the original warranty. The decision of the CORNELIUS Service Department  
regarding the warrantability of parts and eligibility for the labor allowance will be final.  
No representative, distributor/dealer or any other person is authorized or permitted to make any other warranty or obligate CORNELIUS to  
make any other warranty or obligate CORNELIUS to any liability not strictly in accordance with this policy. This warranty is in lieu of all other  
warranties expressed or implied and of all other obligations or of liabilities on our parts.  
OUR LIABILITIES ARE LIMITED SOLELY AND EXCLUSIVELY TO REPAIR OR REPLACEMENT OF THE DEFECTIVE PRODUCT. WE ARE  
NOT LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND WHATSOEVER. In those jurisdictions  
where liability for damages cannot be disclaimed, original purchasers recovery shall not exceed the cost of the warranted product.  
Except for descriptions of size, quantity and type, which may appear on CORNELIUS product with specifications of certain industry,  
government or professional organizations standards which may appear as product information disclosures in CORNELIUS literature and other  
documents from time to time, THIS WARRANTY IS IN LIEU OF AND EXCLUDES ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,  
INCLUDING WARRANTIES OR MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  
CORNELIUS MAKES NO WRITTEN WARRANTY TO ANY PURCHASER WHO BUYS FOR PERSONAL, FAMILY OR HOUSEHOLD USE.  
P/N 163238002  
IMI CORNELIUS INC.  
Effective March. 1, 1996  
Starting with Production  
Serial  
ONE CORNELIUS PLACE  
ANOKA, MINNESOTA 55303-6234  
Number Code 9603  
166240010  
32  
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166240010  
33  
IMI CORNELIUS INC.  
Corporate Headquarters:  
One Cornelius Place  
Anoka, Minnesota 55303-6234  
(763) 421-6120  
(800) 238-3600  
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34  
166240010  

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