CONTINUOUS FLOW ICEMAKER UC 701 - SERIES Installation and Service Manual Release Date: February 2001 Publication Number: 630460150 Revision Date: March 18, 2014 Revision: C Visit the Cornelius web site at www.cornelius.com for all your Literature needs.
The products, technical information, and instructions contained in this manual are subject to change without notice. These instructions are not intended to cover all details or variations of the equipment, nor to provide for every possible contingency in the installation, operation or maintenance of this equipment. This manual assumes that the person(s) working on the equipment have been trained and are skilled in working with electrical, plumbing, pneumatic, and mechanical equipment.
TABLE OF CONTENTS Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Read and Follow ALL Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Safety Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Recognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Condenser Modulating Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Condenser Modulating Valve Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Bin Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Gearmotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UC 701 Series Continuous Flow Icemaker Installation and Service Manual SAFETY INSTRUCTIONS READ AND FOLLOW ALL SAFETY INSTRUCTIONS Safety Overview • Read and follow ALL SAFETY INSTRUCTIONS in this manual and any warning/caution labels on the unit (decals, labels or laminated cards). • Read and understand ALL applicable OSHA (Occupational Safety and Health Administration) safety regulations before operating this unit. Recognition Recognize Safety Alerts ! This is the safety alert symbol.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual SAFETY PRECAUTIONS This unit has been specifically designed to provide protection against personal injury. To ensure continued protection observe the following: ! WARNING: Disconnect power to the unit before servicing following all lock out/tag out procedures established by the user. Verify all of the power is off to the unit before any work is performed.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual GENERAL INFORMATION TO THE USER OF THIS MANUAL This manual covers the installation and assembly of the Air--Cooled or Water--Cooled Model UC 701 Icemaker with the Model UC150 Dispenser. Refer to Table of Contents for page location of detailed information pertaining to questions that may arise during installation or operation of this equipment.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual Table 1. Design Data (cont’d) Unit Model Number: Water Supply--Water inlet fitting is 1/4--inch SAE flare located at the top front of the Unit. The Unit is designed to operate on water pressure between 10 PSI and 90 PSI. Drain Overflow Line (Located at rear of the Unit) 3/8--inch Flexible Tubing Ambient Operating Temperature 40° F to 100° F Electrical: Unit Electrical Rating 208/230 VAC, 60 Hz,11.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual Figure 1. Clearance Requirements © 2000-2014, Cornelius Inc.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual PRE-INSTALLATION FREIGHT DAMAGE CLAIM The delivery of your equipment (Freight Company, Distributor, or dealer) is responsible for loss or damage of your shipment. All claims must be filed with the deliverer of your equipment. Please follow the steps below to determine if your shipment is satisfactory or if a claim must be filed: 1. Check the number of products delivered against the number of products listed on the delivery receipt.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual INSTALLATION 1. Keep unit in the upright position, remove carton and pallet from the Icemaker and inspect for damage. 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 to factory, and other copy to distributor. Postage is prepaid. 3.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual INITIAL START UP, CHECKS AND ADJUSTMENT INSTRUCTIONS NOTE: Do not start Icemaker before completing installation steps on pages 6 and 7. Turn on water supply (if Icemaker 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 Icemaker will not start be sure water reservoir is full.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual GUIDE TO SERVICE ! WARNING: Disconnect electrical power to the Icemaker to prevent personal injury before attempting any internal maintenance. Only qualified personnel should service internal components or electrical wiring. Failure to Comply Could Result in Serious Injury, Death or Equipment Damage. ICEMAKER CLEANING AND SANITIZING PROCEDURES ! CAUTION: Do not use any of the ice made during cleaning operations.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual 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. Semi-Annually Semi-Annually in addition to all previously established service procedures perform the following: 1.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual 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 3 before the water inlet is sealed the safety switch is operated.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual REFRIGERATION SYSTEM ±10 lbs. Discharge Pressure Type R404A Water Temperature (°F) Air Temperature (°F) Refrigerant 40 65 90 50 174 177 180 60 202 205 208 70 230 233 236 80 265 269 272 90 300 304 307 100 328 334 340 NOTE: Thermostatic Expansion Valve is non-adjustable on all models.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual ! 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.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual BIN CONTROL The type of bin control used on all UC Models is thermostatically controlled. The switch itself is inside the electrical box of the Dispenser and can be serviced from the front of the unit. The cap tube bulb is located in the thermostat well directly under the ice inlet. 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.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual 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 7). If no continuity on start or run winding test, replace gearmotor. If continuity on grounded motor test, replace gearmotor. © 2000-2014, Cornelius Inc.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual 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. Figure 7. Gearmotor Assembly To Replace Gearmotor Assembly ! WARNING: Disconnect power to the unit before servicing. Follow all lock out/tag out procedures established by the user.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual AUGER AND EXTRUDING HEAD REMOVAL ! WARNING: Disconnect power to the unit before servicing. Follow all lock out/tag out procedures established by the user. Verify all power is off to the unit before performing any work. Failure to comply could result in serious injury, death or damage to the equipment. 1. Remove storage container cover and put aside. 2. Turn off water supply to icemaker. 3.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual 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. NOTE: The bearings are 3/32” thick. When they wear below 1/16” they should be replaced. Bearings to be inspected for wear during quarterly maintenance. (See Figure 4) To Replace Bearing ! WARNING: Disconnect power to the unit before servicing.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual COMPRESSOR CHECK (See Figure 11) 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. 1. Check between “C” and “R.” Replace the compressor if there is no continuity as the run windings are open. 2. Check between “C” and “S.” Replace the compressor if there is no continuity as the start windings are open. 3.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual GUIDE TO GOOD ICE Publication Number: 630460150 - 20 - © 2000-2014, Cornelius Inc.
Figure 13. Wiring Diagram UC 701 Series Continuous Flow Icemaker Installation and Service Manual © 2000-2014, Cornelius Inc.
Figure 14. Troubleshooting Chart UC 701 Series Continuous Flow Icemaker Installation and Service Manual Publication Number: 630460150 - 22 - © 2000-2014, Cornelius Inc.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual TROUBLESHOOTING IMPORTANT: Only qualified personnel should service internal components or electrical wiring. Troubleshooting Compressors Trouble Probable Cause Remedy 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 © 2000-2014, Cornelius Inc. A.
UC 701 Series Continuous Flow Icemaker Installation and Service Manual Publication Number: 630460150 - 24 - © 2000-2014, Cornelius Inc.
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