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Table of Contents
Troubleshooting
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Summary of Contents for Cornelius UC 701 SERIES
- Page 1 CONTINUOUS FLOW ICEMAKER UC 701 - SERIES Installation and Service Manual Release Date: 2000 Publication Number: 630460150 Revision Date: April 16, 2012 Revision: B Visit the IMI Cornelius web site at www.cornelius.com for all your Literature needs.
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Page 2: Contact Information
Commercial Warranty. Cornelius will not be responsible for any repair, replacement or other service required by or loss or damage resulting from any of the following occurrences, including but not limited to, (1) other than normal and proper use and normal... -
Page 3: Table Of Contents
TABLE OF CONTENTS Safety Instructions..............1 Read and Follow ALL Safety Instructions . - Page 4 Condenser Modulating Valve............13 Condenser Modulating Valve Removal .
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Page 5: Safety Instructions
Only trained and certified electrical, plumbing and refrigeration technicians should service this unit. ALL WIRING AND PLUMBING MUST CONFORM TO NATIONAL AND LOCAL CODES. FAILURE TO COMPLY COULD RESULT IN SERIOUS INJURY, DEATH OR EQUIPMENT DAMAGE. © 2000-2012, IMI Cornelius Inc. - 1 - Publication Number: 630460150... -
Page 6: Safety Precautions
NOTE: Many units incorporate the use of additional equipment such as icemakers. When any addition equipment is used you must check with the equipment manufacturer to determine the additional weight the counter will need to support to ensure a safe installation. Publication Number: 630460150 - 2 - © 2000-2012, IMI Cornelius Inc. -
Page 7: General Information
LAIMS NSTRUCTIONS Claims: In the event of shortage, notify the carrier as well as IMI Cornelius immediately. In the event of damage, notify the carrier. IMI Cornelius is not responsible for damage occurring in transit, but will gladly render assistance necessary to pursue your claim. -
Page 8: Specification Chart
208/230 VAC, 60 hz, 20 Amps Dedicated 3--Wire Grounded Circuit PECIFICATION HART Refrigerant Circuit Condensing Comp. GRMTR Fuse Models Wire Unit Amps Amps Type UCR701--A Air Cooled 208/230 R404A UCR701--W Water Cooled 208/230 R404A Publication Number: 630460150 - 4 - © 2000-2012, IMI Cornelius Inc. - Page 9 UC 701 Series Continuous Flow Icemaker Installation and Service Manual Figure 1. Clearance Requirements © 2000-2012, IMI Cornelius Inc. - 5 - Publication Number: 630460150...
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Page 10: Pre-Installation
Two separate 20 amp, 120VAC, 60 Hz electrical circuits. RAIN One drain beneath the counter at floor level which will accomodate both the drain from the Icemaker and the Dispenser. Publication Number: 630460150 - 6 - © 2000-2012, IMI Cornelius Inc. -
Page 11: Installation
A. Locate bin thermostat cable supplied with the icemaker (Black cable) and connect to electrical box on the UC700 and the receptacle on the side of the dispenser. Figure 2. Side Bracket Installation © 2000-2012, IMI Cornelius Inc. - 7 - Publication Number: 630460150... -
Page 12: Initial Start Up, Checks And Adjustment Instructions
(see chart on page 11). 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. Publication Number: 630460150 - 8 - © 2000-2012, IMI Cornelius Inc. -
Page 13: Guide To Service
1. Clean the condenser. Use a brush, vacuum cleaner or blow from inside with air or CO gas. 2. Inspect water feed reservoir at lease once a month until a definite pattern for cleaning and sanitizing has been established. © 2000-2012, IMI Cornelius Inc. - 9 - Publication Number: 630460150... -
Page 14: Quarterly
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 4) Figure 4. Upper Nut and Bearing Assembly Publication Number: 630460150 - 10 - © 2000-2012, IMI Cornelius Inc. -
Page 15: Water Level Control
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. © 2000-2012, IMI Cornelius Inc. - 11 - Publication Number: 630460150... -
Page 16: Refrigeration System
NOTE: Units with thermostatic expansion valve—The 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. Publication Number: 630460150 - 12 - © 2000-2012, IMI Cornelius Inc. -
Page 17: Condenser Modulating Valve
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. © 2000-2012, IMI Cornelius Inc. - 13 - Publication Number: 630460150... -
Page 18: Bin Control
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. Publication Number: 630460150 - 14 - © 2000-2012, IMI Cornelius Inc. -
Page 19: Motor Check
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. © 2000-2012, IMI Cornelius Inc. - 15 - Publication Number: 630460150... -
Page 20: Start Relay
4. When replacing the transmission, it may be necessary to rotate the auger back and forth to align the motor shaft and auger. Figure 8. Auger and Extruding Head Removal Publication Number: 630460150 - 16 - © 2000-2012, IMI Cornelius Inc. -
Page 21: Auger And Extruding Head Removal
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. © 2000-2012, IMI Cornelius Inc. - 17 - Publication Number: 630460150... -
Page 22: Upper Nut And Bearing Assembly
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. Publication Number: 630460150 - 18 - © 2000-2012, IMI Cornelius Inc. -
Page 23: Compressor Check
4. Anti-freeze relay and associated circuit. See Wiring Diagram Figure 13. 5. Main service switch located on top of the control box. See Wiring diagram Figure 13. 6. Bin Control. 7. High pressure cut out (water cooled only). © 2000-2012, IMI Cornelius Inc. - 19 - Publication Number: 630460150... -
Page 24: Guide To Good Ice
UC 701 Series Continuous Flow Icemaker Installation and Service Manual GUIDE TO GOOD ICE Publication Number: 630460150 - 20 - © 2000-2012, IMI Cornelius Inc. - Page 25 UC 701 Series Continuous Flow Icemaker Installation and Service Manual © 2000-2012, IMI Cornelius Inc. - 21 - Publication Number: 630460150...
- Page 26 UC 701 Series Continuous Flow Icemaker Installation and Service Manual Publication Number: 630460150 - 22 - © 2000-2012, IMI Cornelius Inc.
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Page 27: Troubleshooting
See electrical checkout instructions. THE COMPRESSOR RUNS BUT Compressor not working Check the compressor suctions WILL NOT REFRIGERATE and discharge pressures. See chart on page 17. © 2000-2012, IMI Cornelius Inc. - 23 - Publication Number: 630460150... - Page 28 UC 701 Series Continuous Flow Icemaker Installation and Service Manual Publication Number: 630460150 - 24 - © 2000-2012, IMI Cornelius Inc.
- Page 30 IMI Cornelius Inc. www.cornelius.com...