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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 Page INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SPECIFICATIONS 750 AND 1100 SERIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SPECIFICATIONS 2400 SERIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 INSTALLATION INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 RE
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TABLE OF CONTENTS (cont’d) LIST OF FIGURES Page FIGURE 1. 750 AND 1100 SERIES SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . 2 FIGURE 2. SPECIFICATIONS FOR 2400 SERIES . . . . . . . . . . . . . . . . . . . . . . . . . 4 FIGURE 3. WATER LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 FIGURE 4. TYPICAL WATER CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 FIGURE 5. TYPICAL REFRIGERANT CIRCUIT . . . . . .
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INTRODUCTION We have strived to produce a quality product. The design has been kept simple thus insuring trouble–free 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
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SPECIFICATIONS 750 AND 1100 SERIES 23 1/8-IN. CHUTE OPENING 59-CM 8 1/4-IN. 5 1/16-IN. 21-CM 13-CM 23-IN. 5-IN. 58-CM FRONT 13-CM 1 1/2-IN. A BOTTOM 4-CM VIEW B 1 3/4-IN. C 4-CM D 26 1/4-IN. 1 1/2-IN. 9-IN. E 67-CM 4-CM 23-CM A = POWER INLET 11 1/2-IN. B = WATER INLET 2-IN. 29-CM C = CONDENSER (WATER IN) 5-CM (WC ONLY) D = CONDENSER (WATER OUT) REAR (WC ONLY) VIEW E = CHASSIS DRAIN FIGURE 1. 750 AND 1100 SERIES SPECIFICATIONS ICE PRODUCTION CAPACITY (approximate)
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ICE PRODUCTION CAPACITY (approximate) RF-1100-P-MH PRODUCTION CHART AIR TEMPERATURE WATER TEMPERATURE 50F/10C 60F/16C 70F/21C 70F/21C 1202 lbs/545 kgs 80F/27C 1119 lbs/508 kgs 90F/32C 988 lbs/448 kgs
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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. 8-IN. 60-CM 115-CM 69-CM 44-CM 20-CM 44-IN. 112-CM 15 1/8-IN. 14 1/4-IN. 15 1/8-IN. 38-CM 36-CM 38-CM ELECTRICAL WATER IN (W/C) 9 1/8-IN. WATER INLET 23 1/2-IN. 23-CM 60-CM WATER OUT (W/C) AIR IN 8 3/4-IN. 27-IN. AB 22-CM 69-CM 44-IN. 9 1/8-IN. 112-CM 23-CM ”A”- ALTERNATE ICE DROP AREA FOR TOP UNIT WHEN TWO ARE STACKED. NOTE: AIR IS EXHAUSTED OUT BACK AND SIDE OPPOSITE ”B”-ICE DROP AREA
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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 6” space 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 possib
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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 shut–off for proper operations. In the mid–range 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
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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. Re–install 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. Re–install gearmotor assembly and start machine. 7 166240009
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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 1/4” flat washer 2 – #239 1/4” Lock 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 s
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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 cha
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TYPICAL REFRIGERANT CIRCUIT Heat always flows from hot to cold and therefore, the ”heat load” supplied 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
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ELECTRICAL CIRCUIT CIRCUIT DESCRIPTION As the manual on–off–circuit 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 electri
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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 r
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