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- Page 1 SIGNATURE Service Manual Release Date: February 16, 2012 Publication Number: 621058426SER Revision Date: N/A Revision: A Visit the IMI Cornelius web site at www.cornelius.com for all your Literature needs.
- Page 2 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...
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Page 3: Table Of Contents
TABLE OF CONTENTS Safety Instructions..............1 Read and Follow ALL Safety Instructions . - Page 4 System Assembly ............. . . 18 System Sanitation.
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Page 5: Safety Instructions
Do not let anyone operate the unit without proper training. This appliance is not intended for use by very young children or infirm persons without supervision. Y oung children should be supervised to ensure that they do not play with the appliance. © 2011, IMI Cornelius Inc. - 1 - Publication Number: 621058426SER... -
Page 6: Qualified Service Personnel
A freezing ambient environment will cause residual sanitizing solution or water remaining inside the unit to freeze resulting in damage to internal components. Publication Number: 621058426SER - 2 - © 2011, IMI Cornelius Inc. -
Page 7: Mounting On A Counter
When installing the unit on a counter top, the counter must be able to support a weight in excess of 300 lbs. to insure adequate support for the unit. FAILURE TO COMPLY COULD RESULT IN SERIOUS INJURY, DEATH OR EQUIPMENT DAMAGE. © 2011, IMI Cornelius Inc. - 3 - Publication Number: 621058426SER... -
Page 8: Introduction
The Signature unit also provides the highest quality drink appearance and consis- tency while keeping operation and maintenance simple and straightforward. The Signature unit is simple in design and has built-in features and diagnostic controls to help the service technician quickly and accurately maintain and service the unit. -
Page 9: Control Panel Display
The Signature control panel is a very simple design. It allows the operator to control the unit with the push of a button. Troubleshooting information on the unit is available from the three LEDs on the right side of the control panel. -
Page 10: Clean Button
ROGRAM ETTINGS The Signature unit may be placed in a number of programming modes using a com- bination of buttons. These modes allow adjustment of viscosity, selection of motor type, calibration of a new motor, and they allow various components to be turned on and off for testing purposes. -
Page 11: Programming Mode
Status LEDs at the right side of the control panel. Refer to Figure 2 for LED display values. Repeatedly pressing the CLEAN Button steps through the fine viscosity settings (1-7). © 2011, IMI Cornelius Inc. - 7 - Publication Number: 621058426SER... -
Page 12: Status Leds
MIX OUT STATUS 2 LEVEL 5 STATUS 3 MIX OUT STATUS 2 LEVEL 6 STATUS 3 MIX OUT STATUS 2 LEVEL 7 STATUS 3 Figure 2. Viscosity Setting Displays Publication Number: 621058426SER - 8 - © 2011, IMI Cornelius Inc. -
Page 13: Error Conditions
IMMEDIATELY. Unit must be power cycled to clear it. © 2011, IMI Cornelius Inc. - 9 - Publication Number: 621058426SER... - Page 14 This error occurs when low product level is detected in the hopper; the system goes into MIXOUT Mode. Product The error automatically clears if more product is added to the hopper. Publication Number: 621058426SER - 10 - © 2011, IMI Cornelius Inc.
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Page 15: Operation
Signature Service Manual OPERATION TARTING THE Table 3 describes the basic procedure for starting the Signature unit. Refer to the Operator’s Manual (P/N 621058426OPR) for details on daily operation and operator maintenance of the unit. Table 3. Step Action Remove the Bowl Cover Lid and fill the Product Bowl on top of the unit with product. -
Page 16: Preventative Maintenance
90-100 F (32-38 C)] or KAY-5 sanitizer (100ppm). Tools Draining bucket, brushes, magnet removal tool, spray bottle for sanitizer and food grade lubricant. Publication Number: 621058426SER - 12 - © 2011, IMI Cornelius Inc. -
Page 17: Draining The Unit
2 2 f f o o r r 1 1 D D i i s s p p e e n n s s e e N N o o z z z z l l e e Figure 3. Figure 5. © 2011, IMI Cornelius Inc. - 13 - Publication Number: 621058426SER... -
Page 18: Rinsing The Unit
Drain liquid until detergent stops flowing in the 2 for 1 line. Pour small amount of detergent into the drip tray to flush and clean the drain tube, shown in Figure 7. Publication Number: 621058426SER - 14 - © 2011, IMI Cornelius Inc. -
Page 19: System Disassembly
The bearing and cou- pling will slide out. See Figure 15. Remove the Drip Tray and Cup Rest from the unit, as shown in Figure 16. © 2011, IMI Cornelius Inc. - 15 - Publication Number: 621058426SER... - Page 20 A A U U G G E E R R S S C C R R A A P P E E R R B B L L A A D D E E Figure 13. Figure 14. Publication Number: 621058426SER - 16 - © 2011, IMI Cornelius Inc.
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Page 21: System Cleaning
Product Bowl. See Figure 17 and Figure 18. Thoroughly rinse these surfaces with a clean cloth and clean warm [90- F (32-38 C)] water. Allow all the parts and the unit to dry. © 2011, IMI Cornelius Inc. - 17 - Publication Number: 621058426SER... -
Page 22: System Assembly
Figure 25 and replace the four (4) faceplate Hand Nuts. Make sure they are tightened in a cross pattern (upper left, lower right, upper right then lower left.). Publication Number: 621058426SER - 18 - © 2011, IMI Cornelius Inc. - Page 23 A A U U G G E E R R S S C C R R A A P P E E R R B B L L A A D D E E Figure 24. Figure 23. © 2011, IMI Cornelius Inc. - 19 - Publication Number: 621058426SER...
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Page 24: System Sanitation
Bowl Lid Cover enough to coat the entire cover. Submerge Air Tube (Only used for dairy product) into sanitizer bucket for 2 minutes. Remove and set aside until final rinse is complete. Publication Number: 621058426SER - 20 - © 2011, IMI Cornelius Inc. -
Page 25: Cleaning Parts Inventory List
Part Number Description Qty. 620049756 Product Bowl 620043194 Mixing Blade 620049757 Gasket, Evaporator 620049940 Cover 620049969 Air Tube 620047121 Air Tube Seal 620045393 Face Plate 620045394 Plunger 620047115 Faceplate Gasket © 2011, IMI Cornelius Inc. - 21 - Publication Number: 621058426SER... -
Page 26: Monthly Maintenance
Drip Tray Assembly ONTHLY AINTENANCE Perform a general inspection of the unit for leaks and cleanliness on a weekly basis. Any abnormal conditions should be reported and corrected when noticed. Publication Number: 621058426SER - 22 - © 2011, IMI Cornelius Inc. -
Page 27: Cleaning The Air Filter
Figure 31. Air Filter Installation NNUAL AINTENANCE There are several procedures that should be completed on a semi-annual basis. These procedures help to insure proper operation of the system on a long term © 2011, IMI Cornelius Inc. - 23 - Publication Number: 621058426SER... -
Page 28: Inspecting And Replacing Scraper Blades
Clean and sanitize the unit, if needed, as shown in the Cleaning and Sanitizing Procedure on page 12. Otherwise, refill with product and serve. Publication Number: 621058426SER - 24 - © 2011, IMI Cornelius Inc. -
Page 29: Component Replacement
Signature Service Manual COMPONENT REPLACEMENT The following procedures should be followed to service the Signature unit. Testing and troubleshooting is aided by using the control buttons and the LEDs located on the front panel of the unit. These buttons are used in a variety of ways to control the functions of the unit. -
Page 30: Control Board Replacement
Procedure Disconnect power from the unit. Remove the left side panel from the unit. Connect a static strap to your wrist and any convenient chassis ground on the unit. Publication Number: 621058426SER - 26 - © 2011, IMI Cornelius Inc. - Page 31 Replace the side panel. Reconnect power to the unit. Protective Cover Tabs Cover Mounting Screw Tabs Figure 36. Control Board Protective Cover Mounting Mounting Posts Posts Figure 37. View of Control Board © 2011, IMI Cornelius Inc. - 27 - Publication Number: 621058426SER...
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Page 32: Barrel Motor Assembly Replacement
Table 17 to replace the motor assembly. Motor Mounting Bracket Motor/Gear Box Mounting Set Screwsand Bolts Figure 38. Motor Mounting, Right Side Figure 39. Rear Motor Access Panel Publication Number: 621058426SER - 28 - © 2011, IMI Cornelius Inc. - Page 33 Reconnect power to the unit. Verify that the system is set to the correct motor type. Perform the “Motor Calibration” on page 30. Motor Power Connector Figure 40. Control Board Power Connector © 2011, IMI Cornelius Inc. - 29 - Publication Number: 621058426SER...
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Page 34: Motor Calibration
Perform the proce- dure in Table 18 to calibrate a the drive system. Table 18. Step Procedure Fill the barrel with potable water. Publication Number: 621058426SER - 30 - © 2011, IMI Cornelius Inc. -
Page 35: Component Remote Control
STATUS 2 Barrel LLS STATUS 3 MIX OUT Product Bowl STATUS 2 STATUS 3 MIX OUT Compressor STATUS 2 & STATUS 3 Condenser Fan Figure 44. Remote Control Status LEDs © 2011, IMI Cornelius Inc. - 31 - Publication Number: 621058426SER... -
Page 36: Paddle Motor Replacement
Reconnect power to the unit. Press the CLEAN Button to place the unit in Clean Mode and verify paddle opera- tion. Control Board Paddle Motor Connectors Figure 45. Paddle Motor Connectors Publication Number: 621058426SER - 32 - © 2011, IMI Cornelius Inc. -
Page 37: Condenser Fan Motor Replacement
The fan motor is located in the rear of the unit, as shown in Figure 48. If the motor needs replacement, perform the procedure in Table 20 to remove and reinstall a new fan motor assembly. Figure 48. Rear View of Unit (230VAC/50Hz) © 2011, IMI Cornelius Inc. - 33 - Publication Number: 621058426SER... - Page 38 Reverse the procedure to install the new motor and replace the side panels. Reconnect power to the unit. Condenser Fan Power Connections Figure 49. Fan Power Terminal Fan Assembly Mounting Screws (6 places) Figure 50. Condenser Fan Mounting Screws Publication Number: 621058426SER - 34 - © 2011, IMI Cornelius Inc.
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Page 39: Compressor Replacement
Reverse the procedure to install the new compressor. (Tighten the 5/16-18 bolts to 132 in-lbs.) Replace the dryer. Replace all insulation around fittings. Evacuate the system and recharge it according to the Cornelius nameplate on the unit. Replace the side panels. Reconnect power to the unit and test the unit. -
Page 40: Liquid Line Solenoid/Valve Replacement
Remove the side panels from the unit. Reclaim refrigerant from the system. Remove the solenoid coil, as described in Table 22. Remove the liquid line valve. Replace the liquid line valve. Replace the dryer. Publication Number: 621058426SER - 36 - © 2011, IMI Cornelius Inc. -
Page 41: High Pressure Switch Replacement
Signature Service Manual Table 23. Step Procedure Evacuate the system and recharge it according to the Cornelius nameplate on the unit. Verify proper system operation. Replace the side panels. Reconnect power to the unit. RESSURE WITCH EPLACEMENT The high pressure switch, shown in Figure 53, is located near the front of the unit on the right side. -
Page 42: Contactor Replacement
120VAC units. This procedure should only be performed by qualified personnel. Table 26. Step Procedure Remove the left side panel from the unit. Remove the two screws holding the E-Box cover on. (See Figure 54.) Publication Number: 621058426SER - 38 - © 2011, IMI Cornelius Inc. - Page 43 Figure 56. AC Connection Figure 56. Rear View of Unit Showing 230VAC/50 Hz Connection © 2011, IMI Cornelius Inc. - 39 - Publication Number: 621058426SER...
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Page 44: Compressor Capacitor Replacement
Reverse the procedure to install the new capacitor. Make sure the labels on the capacitors are readable after replacement. Replace the E-Box cover and the left side panel. Reconnect power to the unit. Publication Number: 621058426SER - 40 - © 2011, IMI Cornelius Inc. -
Page 45: Compressor Relay Replacement
ONTROL EYPAD EPLACEMENT The Control keypad is a membrane switch panel that contains all of the switches controlling the Signature unit. If the panel requires replacement, perform the procedure in Table 30. Table 30. Step Procedure Disconnect power from the unit. -
Page 46: Thermistor Replacement
Figure 59. Control Board w/Cover Removed HERMISTOR EPLACEMENT There are three thermistors used in the Signature unit. They monitor the Product Bowl, the Barrel and the Barrel Evaporator temperatures. To replace the thermistors, perform the procedure in Table 31. Table 31. - Page 47 If insulation was removed, make sure it is replaced properly. Reconnect the thermistor to the proper connector. Replace the left side panel. Reconnect power to the unit. Product Bowl Thermistor Barrel Thermistor Evaporator Thermistor Figure 60. Thermistor Locations © 2011, IMI Cornelius Inc. - 43 - Publication Number: 621058426SER...
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Page 48: Troubleshooting
D. Bad connections. D. Check connections between E-Box, control board and correct as needed. E. Faceplate switch bad or mis-located E. Adjust or replace faceplate Control Board bad Replace Publication Number: 621058426SER - 44 - © 2011, IMI Cornelius Inc. -
Page 49: Troubleshooting Product Not Cold
A. Bad connection. A. Correct wiring. B. Bad sensor. B. Replace sensor. Thermistors/Reed Switches C. Sensor out of position. C. Reposition sensor and clip. D. Defective control board. D. Replace. © 2011, IMI Cornelius Inc. - 45 - Publication Number: 621058426SER... -
Page 50: Wiring Diagram
Signature Service Manual WIRING DIAGRAM Figure 57. Wiring Diagram Publication Number: 621058426SER - 46 - © 2011, IMI Cornelius Inc. -
Page 51: Refrigeration Diagram
Signature Service Manual REFRIGERATION DIAGRAM Figure 57. Refrigeration Diagram © 2011, IMI Cornelius Inc. - 47 - Publication Number: 621058426SER... -
Page 52: Specifications
......approx. 10 min. @ 75º F (24º C) ambient w/65º F (18º C) product from bowl Publication Number: 621058426SER - 48 - © 2011, IMI Cornelius Inc. - Page 54 IMI Cornelius Inc. www.cornelius.com...
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