IMI CORNELIUS INC g One Cornelius Place g Anoka, MN 55303-6234
Telephone (800) 238-3600 Facsimile (612) 422-3246
Service Manual
SENTRY III-A POST-MIX COOLING UNIT
(R-134A Refrigerant)
IMPORTANT:
TO THE INSTALLER.
It is the responsibility of
the Installer to ensure that
the water supply to the
dispensing equipment is
provided with protection
against backflow by an air
gap as defined in
ANSI/ASME A112.1.2-1979;
or an approved vacuum
breaker or other such
method as proved effective
by test.
Water pipe connections
and fixtures directly
connected to a potable
water supply shall be
sized, installed, and
maintained according to
Federal, State, and Local
Codes.
Part No. 312021004
December 16, 1994
Revised: December 1, 1995
Control Code A
THIS DOCUMENT CONTAINS IMPORTANT INFORMATION
This Manual must be read and understood before installing or operating this equipment
IMI CORNELIUS INC; 1994--95Ó
PRINTED IN U.S.A
TABLE OF CONTENTS
SAFETY INFORMATION 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RECOGNIZE SAFETY INFORMATION 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UNDERSTAND SIGNAL WORDS 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FOLLOW SAFETY INSTRUCTIONS 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CO2 (CARBON DIOXIDE) WARNING 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SHIPPING, STORING, OR RELOCATING UNIT 1. . . . . . . . . . . . . . . . . . . . . . .
GENERAL INFORMATION 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TO THE USER OF THIS MANUAL 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLAIMS INSTRUCTIONS 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARRANTY REFERENCE INFORMATION 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DESIGN DATA 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DESCRIPTION 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
THEORY OF OPERATION 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PARTS IDENTIFICATION 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE AND MAINTENANCE 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PREPARING COOLING UNIT FOR SHIPPING, STORING, OR RELOCATING 9
PERIODIC INSPECTION 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING CO2 REGULATORS 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CARBONATOR CO2 REGULATOR 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SUGAR SYRUP TANK CO2 REGULATOR 9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
LOW-CALORIE (DIET) SYRUP TANK CO2 REGULATOR 9. . . . . . . . . . . . . .
CLEANING CONDENSER COIL 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING ICE WATER BATH 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHANGING ICE WATER BATH 11.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PERIODIC CLEANING 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLEANING AND SANITIZING 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DAILY CLEANING OF UNIT 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SANITIZING POST-MIX SYRUP SYSTEMS 12. . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING CARBONATOR TANK LIQUID LEVELS 14. . . . . . . . . . . . . . . . . . . . . . .
UNDER 40-OUNCES OF CARBONATED WATER DISPENSED 14. . . . . . . . .
OVER 60-OUNCES OF CARBONATED WATER DISPENSED 15. . . . . . . . . .
CARBONATOR WATER PUMP YEARLY MAINTENANCE 15. . . . . . . . . . . . . . . . . . .
SERVICING CARBONATOR WATER PUMP WATER STRAINER SCREEN 15
SERVICING CARBONATOR WATER INLET DOUBLE LIQUID CHECK VALVE 16
CLEANING CO2 GAS CHECK VALVES 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LUBRICATION 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CARBONATOR WATER PUMP MOTOR LUBRICATION 18. . . . . . . . . . . . . . .
CARBONATED WATER CIRCULATING PUMP MOTOR LUBRICATION 18. .
REPLENISHING SYRUP SUPPLY 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SYRUP FLAVOR CHANGE 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page
WATER-TO-SYRUP “RATIO” OF DISPENSED DRINK TOO LOW OR TOO
HIGH 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTMENT OF DISPENSING VALVE SYRUP FLOW REGULATOR DOES NOT
i
312021004
INCREASE TO DESIRED WATER-TO-SYRUP “RATIO” 21. . . . . . . . . . . . . . . . . . . .
312021004
ii
TABLE OF CONTENTS (cont’d)
ADJUSTMENT OF DISPENSING VALVE SYRUP FLOW REGULATOR DOES NOT
DECREASE TO DESIRED WATER-TO-SYRUP “RATIO” 21. . . . . . . . . . . . . . . . . . . .
DISPENSED PRODUCT CARBONATION TOO LOW 22. . . . . . . . . . . . . . . . . . . . . . .
DISPENSED PRODUCT COMES OUT OF DISPENSING VALVE CLEAR BUT
FOAMS IN CUP OR GLASS 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DISPENSED PRODUCT PRODUCES FOAM AS IT LEAVES DISPENSING
VALVE 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ONLY CARBONATED WATER DISPENSED 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ONLY SYRUP DISPENSED 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARM PRODUCT BEING DISPENSED 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WATER PUMP MOTOR WILL NOT OPERATE 23. . . . . . . . . . . . . . . . . . . . . . . . . . . .
WATER PUMP MOTOR WILL NOT SHUT OFF 23. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ERRATIC CYCLING OF CARBONATOR 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WATER PUMP MOTOR OPERATES BUT WATER PUMP DOES NOT PUMP
WATER 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WATER PUMP CAPACITY TOO LOW 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPRESSOR DOES NOT OPERATE 24. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .
COMPRESSOR WILL NOT STOP AFTER SUFFICIENT ICE BANK IS
PRODUCED 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPRESSOR OPERATES CONTINUOUSLY BUT DOES NOT FORM
SUFFICIENT ICE BANK 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONDENSER FAN MOTOR NOT OPERATING 25. . . . . . . . . . . . . . . . . . . . . . . . . . .
AGITATOR MOTOR NOT OPERATING 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARRANTY 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page
LIST OF FIGURES
FIGURE 1. SENTRY III-A COOLING UNIT 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FIGURE 2. SYSTEM FLOW DIAGRAM 6.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .
FIGURE 3. PARTS IDENTIFICATION 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FIGURE 4. CARBONATOR LIQUID LEVEL CONTROL SWITCHES 15. . . . . . . . . .
FIGURE 5. WATER STRAINER SCREEN AND DOUBLE LIQUID CHECK
VALVE 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FIGURE 6. LIQUID CHECK VALVE ASSEMBLY 17. . . . . . . . . . . . . . . . . . . . . . . . . . .
FIGURE 7. CO2 GAS CHECK VALVE 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FIGURE 8. WIRING DIAGRAM (DROP-IN REFRIGERATION ASS’Y) 19. . . . . . . .
FIGURE 9. WIRING DIAGRAM (LOWER COOLING UNIT CABINET) 19. . . . . . . .
LIST OF TABLES
TABLE 1. DESIGN DATA 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iii
312021004
SAFETY INFORMATION
Recognize Safety Information
This is the safety-alert symbol. When you see this
symbol on our machine or in this manual, be alert to
the possibility of personal injury.
Follow recommended precautions and safe operating
practices.
Understand Signal Words
A signal word - DANGER, WARNING, OR CAUTION
is used with the safety-alert symbol. DANGER identifies the most serious hazards.
DANGER
Safety signs with signal word DANGER or WARNING
are typically near specific hazards.
General precautions are listed on CAUTION safety
signs. CAUTION also calls attention to safety messages in this manual.
WARNING
CAUTION
Follow Safety Instructions
Carefully read all safety messages in this manual and on your machine safety signs. Keep safety signs in
good condition. Replace missing or damaged safety signs. Learn how to operate the machine and how to
use the controls properly . Do not let anyone operate the machine without instructions. Keep your machine in
proper working condition. Unauthorized modifications to the machine may impair function, safety, and affect
the machine life and may void the factory warranty.
CO2(Carbon Dioxide) Warning
CO2Displaces Oxygen. Strict Attention must be observed in the prevention of CO2(carbon dioxide)
gas leaks in the entire CO2and soft drink system. If a CO2gas leak is suspected, particularly in a
small area, immediately ventilate the contaminated area before attempting to repair the leak. Personnel exposed to high concentration of CO2gas will experience tremors which are followed rapidly by
loss of consciousness and suffocation.
Shipping, Storing, Or Relocating Unit
CAUTION: All water must be purged from the Unit if exposed to freezing temperature. A freezing ambient temperature will cause residual water remaining inside the Unit to freeze resulting in damage to
internal components of the Unit.
1 312021004
THIS PAGE LEFT BLANK INTENTIONALLY
312021004
2
GENERAL INFORMATION
TO THE USER OF THIS MANUAL
This manual is a guide for servicing and maintaining this equipment. Refer to table of contents for page location
of detailed information pertaining to questions that may arise during service and maintenance or troubleshooting
of this equipment.
CAUTION: Before shipping, storing, or relocating this Unit, the syrup systems must be
sanitized and all sanitizing solution must be purged from the syrup systems. All water must
also be purged from the plain and carbonated water systems. A freezing ambient
environment will cause residual water in the Unit to freeze resulting in damage to internal
components.
WARNING: CO2displaces oxygen. Strict attention must be observed in the prevention of
CO2(carbon dioxide) gas leaks in the entire CO2and soft drink system. If a CO2gas leak is
suspected, particularly in a small area, immediately ventilate the contaminated area before
attempting to repair the leak. Personnel exposed to high concentration of CO2gas will experience
tremors which are followed rapidly by loss of consciousness and suffocation.
CLAIMS INSTRUCTIONS
Claims: In the event of shortage, notify the carrier as well as IMI Cornelius Inc. immediately . In the event of
damage, notify the carrier. IMI Cornelius Inc. is not responsible for damage, occurring in transit, but will
gladly render assistance necessary to pursue your claim. Merchandise must be inspected for concealed damage within 15 days of receipt.
WARRANTY REFERENCE INFORMATION
(to be filled out by customer)
Unit Part Number
Serial Number
Install Date:
LocalAuthorized
Service Center
DESIGN DATA
Table 1. Design Data
Unit Part Numbers:
Domestic Unit 4164920000
Export Unit 4964920000
3120210043
Table 2. Design Data (cont’d)
COOLING UNIT DATA
Cooling Unit Overall Dimensions: (with hood in place)
Height 36--1/4 inches
Width 19 inches
Depth 27 inches
NOTE: Cooling unit Stand P/N 309802069 (optional) with cooling unit in place on stand dimensions:
Height (approx) 74--1/4 inches
Width 36 inches
Depth 19--1/2 inches
Weights (approximate)
Shipping Weight 260 pounds
Weight (W/O Cartoning) 240 pounds
Capacities:
Cooling Unit Water Bath (no ice bank) 16.8 gallons
Ambient Operating Temperature 40° F to 100° F
Electrical Requirements: See Unit Nameplate
DROP--IN REFRIGERATION ASSEMBLY DATA
Weights:
No Ice Bank 103 pounds
With Ice Bank 142 pounds
Refrigerant Requirement (R-134A Refrigerant) See Unit Nameplate
DESCRIPTION
The Sentry III-A Post--Mix Cooling Unit (see Figure 1) with R-134A Refrigerant is designed to provide cooled
syrup, carbonated water, and plain water to the dispensing station(s) connected to the Cooling Unit through an
insulated python. The lower cabinet of the Cooling Unit consist of carbonated water, plain water, and syrup coils,
a water tank where the coils are located, a carbonator, and a carbonated water circulating pump. The Cooling
Unit utilizes a drop-in refrigeration assembly which contains the refrigeration compressor and a condenser coil
and fan assembly as shown in Figure 2).
312021004
4
FIGURE 1. SENTRY III-A COOLING UNIT
THEORY OF OPERATION
A CO2cylinder delivers carbon dioxide gas (CO2) through adjustable CO2regulators to the soft drink tanks and
also to the built--in carbonator located inside the cooling unit. Plain water is pumped into the carbonated water
tank by the water pump and is carbonated by regulated CO2pressure also entering the tank. When dispensing
valve is opened, CO2gas pressure exerted upon the syrup in the soft drink tank, pushes syrup from the tank,
through the cooling unit, through the python, and on to the dispensing valve. Carbonated water is pushed by
CO2gas pressure from the carbonated water tank, through the cooling unit, through the python to the dispensing valve. Syrup and carbonated water meet at the dispensing valve resulting in a carbonated drink being dispensed. Plain water is also available at the dispensing station (s) by passing through the cooling unit, through
the python, and on to the dispensing station. Carbonated water is replenished when carbonated water level inside the carbonator tank drops to a specified level which in turn automatically starts the carbonator water pump
motor. When carbonated water level inside the tank has been replenished, the carbonator water pump motor will
stop. Carbonated water is continuously being circulated from the cooling unit, out through the insulated python
to the dispensing station(s), and back to the cooling unit which maintains liquids in the python at a cold temperature.
3120210045
SYRUP INLET
CONNECTIONS
VALVE
SHUTOFF
INLET
2
PLAIN WATER
CO
INLET CONNECTION
CONNECTION
WATER PUMP
CARBONATED
WATER TANK
CARBONATED
CHECK VALVE
COOLING UNIT
DOUBLE LIQUID
LINE LEGEND
PLAIN WATER
CARB WATER
CO2SYRUP
FIGURE 2. SYSTEM FLOW DIAGRAM
CULATING PUMP
CARBONATED WATER CIR-
BARBED
CONNECTORS (9)
9-LINE PYTHON
TO DISPENSING TOWER
PYTHON LINES
1THROUGH 5 and 9 SYRUP
6 PLAIN WATER
7 CARB WATER OUT
UNNUMBERED LINE IS
CARB WATER RETURN
6
PARTS IDENTIFICATION
CONDENSER
COIL
CARBONAT ORMOTOR
POWER SWITCH
CIRCULATING MOTOR
POWER SWITCH
CARBONATED WATER
CIRCULATING PUMP
MOTOR
COOLING UNIT
POWER SWITCH
UNIT ELECTRICAL
BOX
SYRUP INLET LINES
HOOD RETAINING
ACORN NUT
*CONDENSER COIL
AIR FILTER
WATER FILL
HOLE
CONTROL BOX
COMPRESSOR
HOOD
CONDENSER
FAN MOTOR
AGITATOR
MOTOR
SHIPPING
NUT (4)
ACCESS PANEL
RETAINING
SCREW (4)
PLAIN WATER
INLET
OUTLET
LINES
LOWER ACCESS
GRILLE
CO2GAS
INLET
CARBONATED
WATER TANK
CARBONAT OR
WATER PUMP
CAUTION: The refrigeration assembly condenser coil and air
filter must be cleaned every 30 days. Excessive accumulation
of dust, lint, and grease on air filter and coil will restrict cooling air
flow through the coil and cause coil and refrigeration system to
overheat. Operating refrigeration system in an overheated condition
will eventually lead to compressor failure.
FIGURE 3. PARTS IDENTIFICA TION
CARBONAT OR
WATER PUMP
MOTOR
CARBONAT ORWATER PUMPSAFETY THERMOSTAT
3120210047
THIS PAGE LEFT BLANK INTENTIONALLY
312021004 8
SERVICE AND MAINTENANCE
WARNING: Disconnect electrical power to Cooling Unit to prevent personnel injury before
attempting any internal maintenance. Only qualified Personnel should service internal
components or electrical wiring.
PREPARING COOLING UNIT FOR SHIPPING, STORING, OR RELOCATING
CAUTION: Before shipping, storing, or relocating the Unit, the syrup systems must be
sanitized and all sanitizing solution must be purged from the syrup coils. All water must be
purged from the plain and carbonated water systems, the ice bank must be melted, and all
water must be drained from the water tank. A freezing ambient environment will cause residual
water remaining inside the Unit to freeze resulting in damage to it’s internal components.
PERIODIC INSPECTION
1. The Cooling Unit drop-in refrigeration assembly condenser coil air filter filter must be cleaned every
30-days as instructed. Do not place objects around or over grilles on the Cooling Unit. Air must be allowed
to enter and leave the Unit to remove heat from the condenser coil. Restricting air movement through the
condenser coil will cause refrigeration system to overheat.
2. Check entire system for leaks or damaged components. Repair as necessary.
ADJUSTING CO2REGULATORS
CARBONATOR CO2REGULATOR
Adjust carbonator CO2regulator to a minimum of 80-psi with a maximum of 125-psi. CO2pressure to the carbonator must not exceed 125-psi.
SUGAR SYRUP TANK CO2REGULATOR
Adjust syrup tanks secondary CO2regulator at 40-psi for syrup lines up to 10-feet in length plus one pound for
each additional length of 10-feet plus one pound for each 2-feet of vertical lift. For example: If syrup line total
length is 30-feet and total vertical lift is 6-feet, then 40-psi + 2-psi (1-psi for every 10-feet of length over 10-feet
which is 20-feet) + 3-psi (1-psi for every 2-Feet of vertical lift which is 6-feet); total equals 40 + 2 + 3= 45-psi
CO2regulator setting.
LOW-CALORIE (DIET) SYRUP TANK CO2REGULATOR
Adjust low-calorie (diet) syrup tank secondary CO2regulator to 10-psig for syrup lines up to 30-feet in length.
Syrup lines longer than 30-feet in length may require a slightly higher CO2regulator setting of 12-psig maximum. Excessive CO2pressure may cause low-calorie syrup carbonation resulting in foam.
3120210049
CLEANING CONDENSER COIL
(see Figure 3)
CAUTION: The drop-in refrigeration assembly condenser coil and air filter must be cleaned
every 30-days. Excessive accumulation of dust, lint, and grease on the air filter and coil will
restrict air flow through the coil and cause refrigeration assembly to overheat. Operating
refrigeration system in an overheated condition will eventually lead to refrigeration compressor
failure.
1. Place Cooling Unit power switch in “OFF” (down) position.
2. Remove top screw from ground strap securing hood to Cooling Unit.
3. Remove acorn nut securing hood on Unit, then lift hood straight up to remove.
4. Slide air filter straight up out of the condenser coil frame side rails to remove.
5. Wash out air filter with water and detergent solution, then rinse with clean water and allow to air dry.
6. Vacuum or use a soft brush to clean condenser coil. If available, use low-pressure compressed air.
7. Clean dust and dirt from around top of the refrigeration assembly.
8. Install air filter on condenser coil by reversing removal procedure.
9. Install Cooling Unit hood and secure with acorn nut.
10. Install screw in hood ground strap to secure strap to hood.
11. Place Cooling Unit power switch in “ON” (up) position. Area on top of hood must be kept free of obstruc-
tions at all times. Make sure nothing is stored on top of the hood.
CHECKING ICE WATER BATH
(see Figure 3
A gurgle heard from the Cooling Unit indicates water level in the water tank is low and more water should be
added to the tank for maximum cooling. Before adding more water to the tank, the ice water bath and ice bank
should be checked for cleanliness and water tank coils checked for excessive mineral deposit build-up.
1. Place Cooling Unit power switch in “OFF” (down) position.
2. Remove top screw from ground strap securing hood to Cooling Unit.
3. Remove acorn nut securing hood on Unit, then lift hood straight up to remove.
4. Remove plug from drop-in refrigeration assembly water fill hole.
5. Using flashlight, inspect ice water bath and ice bank for cleanliness. Ice water bath should be clear and ice
bank free of foreign particles.
6. If cleaning of water tank is necessary , refer to CHANGING ICE WATER BATH..
7. Fill water tank with clean water until water runs out of the water tank overflow tube. USE LOW-MINERALCONTENT WATER WHERE A LOCAL WATER PROBLEM EXIST.
312021004 10
8. Install plug in water fill hole.
9. Install Cooling Unit hood and secure with acorn nut.
10. Install screw in hood ground strap to secure strap to hood.
11. Place Cooling Unit power switch in “ON” (up) position.
CHANGING ICE WATER BATH
(see Figure 3
1. Unplug Unit power cord from electrical outlet.
2. Extend Unit water tank drain hose to a waste container or a floor drain. Remove plug from end of the drain
hose and allow water to drain from the tank.
3. Remove top screw from the ground strap securing the hood to the Unit.
4. Remove acorn nut securing Unit hood, then lift hood straight up to remove from the Unit.
5. Unplug drop-in refrigeration assembly power cord from the electrical box.
6. Lift drop-in refrigeration assembly up and out of the Unit.
CAUTION: Never use an ice pick or other instrument to remove ice from the drop-in
refrigeration assembly evaporator coils. Such a practice can result in a punctured
refrigeration circuit.
7. Allow ice bank to melt. Hot water may be used to speed up the melting.
8. Use a fiber brush and carefully clean mineral deposit build-up from the agitator motor shaft and the ice
bank sensing bulb.
9. Wash inside of the water tank and the drop-in refrigeration assembly evaporator coils, then rinse with clean
water.
10. Install plug in end of the water tank drain hose.
11. Install drop-in refrigeration assembly in the Unit by reversing removal procedure.
12. Plug drop-in refrigeration assembly power cord into electrical outlet.
13. Remove plug from drop-in refrigeration assembly platform water fill hole.
14. Fill water tank with clean water until water runs out of the water tank overflow tube.
15. Install plug in water fill hole.
16. Install hood on Unit and secure with acorn nut.
17. Install screw in hood ground strap to secure strap to hood.
18. Plug Cooling Unit power cord into electrical outlet.
PERIODIC CLEANING
Periodically wash all external surfaces of the Cooling Unit, rinse with clean water, then wipe dry with a clean soft
cloth. DO NOT USE ABRASIVE CLEANERS.
CLEANING AND SANITIZING
DAILY CLEANING OF UNIT
1. Remove cup rest from the drip tray .
31202100411
2. Wash drip tray in place on the Unit, then rinse drip tray with hot water allowing water to drain out through
the drain hose.
3. Wash cup rest, then rinse the cup rest with clean water. Install cup rest in the drip tray.
4. Clean all external surfaces of the Unit with a sponge. Rinse out the sponge with clean water, then wring
excess water out of the sponge and wipe off all external surfaces on the Unit. Wipe Unit dry with a clean
soft cloth. DO NOT USE ABRASIVE CLEANERS.
5. Remove nozzle and syrup diffusers from the dispensing valves. Place nozzles and syrup diffusers in sanitizing solution.
6. Wash the nozzles and syrup diffusers in sanitizing solution, then rinse them with potable water.
7. Re-install nozzles and syrup diffusers back on the dispensing valves.
SANITIZING POST-MIX SYRUP SYSTEMS
IMPORTANT: Only qualified Service Personnel should perform sanitizing procedure on the post-mix
syrup systems.
The post-mix syrup systems should be sanitized every 90-days using a non-scented household liquid bleach
containing a 5.25 % sodium hypochlorite concentration. Proceed as follows to sanitize the post-mix syrup systems.
1. Disconnect syrup supplies from syrup systems.
2. Rinse quick disconnects (syrup tanks systems) or bag-in-box connectors (syrup bag-in-box systems) in
warm potable water.
STEP 1. WASH SYRUP SYSTEMS
3. Using a clean syrup tank (syrup tank system) or a five-gallon container (bag-in-box system), prepare a full
tank or container of liquid dishwasher detergent by using 70_ F (21_ C) to 100_ F (38_ C) potable water
and 0.5 oz. (15 ml) of liquid dishwasher detergent to one gallon of potable water. Stir detergent solution to
thoroughly mix the solution.
4. Syrup Tank Systems.
A. Observe and note CO2pressure setting on the syrup tanks CO2regulator, then re-adjust CO2regula-
tor to 60 to 80-psi. Pressurize syrup tank containing detergent solution to 60 to 80-psi.
B. Connect detergent solution tank, pressurized at 60 to 80-psi, into one of the syrup systems.
Bag-in Box Syrup Systems.
C. Install bag valves, cut from empty bag-in-box syrup containers, on ends of syrup containers syrup
outlet tubes connectors.
D. Place all syrup outlet tubes, with bag valves on their ends, in container containing detergent solution.
5. Flush the syrup system and dispensing valve as follows:
A. Place waste container under applicable dispensing valve.
B. Activate the dispensing valve for one minute to purge all syrup and flush out the syrup system.
C. Continue to activate the dispensing valve in cycles (“ON” for 15-seconds, “OFF”, then “ON” for
15-seconds). Repeat “ON” and “OFF” cycles for 15-cycles.
6. Connect detergent solution to the remaining syrup systems and flush syrup out of the syrup systems as
instructed in step 5 preceding.
7. Remove detergent solution source from the syrup system.
312021004 12
STEP 2. FLUSH SYRUP SYSTEMS
8. Syrup Tank Systems.
Connect syrup tank containing potable water, pressurized at 60 to 80-psi, into one of the syrup systems.
Bag-in-Box Syrup System.
Fill five-gallon container with potable water, then place all bag-in-box syrup containers syrup outlet tubes in
container containing potable water.
9. Flush detergent solution out of the syrup system and dispensing valve as follows:
A. Place waste container under applicable dispensing valve.
B. Activate the dispensing valve for one minute to purge all detergent solution and flush out the syrup
system.
C. Continue to activate the dispensing valve in cycles (“ON” for 15-seconds, “OFF”, then “ON” for
15-seconds). Repeat “ON” and “OFF” cycles for 15-cycles.
10. Connect potable water source to the remaining syrup systems and flush detergent solution out of the syrup
systems as instructed in step 9 preceding.
11. Remove potable water source from the syrup system.
STEP 3. SANITIZE SYRUP SYSTEMS
12. Using a clean syrup tank (syrup tanks system) or a five-gallon container (bag-in-box system), prepare sanitizing solution using 70_ F (21_ C) to100_ F (38_ C) potable water and 0.5 oz. (15 ml) of non-scented
household liquid bleach that contains a 5.25 % sodium hypochlorite concentration to one gallon of potable
water. This mixture must not exceed 200 PPM of chlorine. Stir sanitizing solution to thoroughly mix.
13. Syrup Tank Systems.
Connect sanitizing solution tank, pressurized at 60 to 80-psi, into one of the syrup systems.
Bag-in-Box Syrup System.
Place all bag-in-box syrup containers syrup outlet tubes in container containing sanitizing solution.
14. Sanitize the syrup system and dispensing valve as follows:
A. Place waste container under applicable dispensing valve.
B. Activate the dispensing valve for one minute to purge all water from and install sanitizing solution in
the syrup system and dispensing valve.
C. Continue to activate the dispensing valve in cycles (“ON” for 15-seconds, “OFF”, then “ON” for
15-seconds). Repeat “ON” and “OFF” cycles for 15-cycles.
15. Repeat steps13 and 14 to flush water out of and install sanitizing solution in the remaining syrup systems
and dispensing valves.
16. Remove sanitizing solution source from the syrup system.
17. Allow sanitizing solution to remain in the syrup systems for not less than 10 or no more than 15-minutes
(max.) contact time.
STEP 4. WATER FLUSH SYRUP SYSTEMS
WARNING: Flush sanitizing solution from the syrup systems as instructed. Residual
sanitizing solution left in the syrup systems could create a health hazard.
31202100413
18. Fill syrup tank (syrup tank system) or a five-gallon container (bag-in-box system) with potable water.
19. Syrup Tank Systems.
Connect syrup tank containing potable water, pressurized at 60 to 80-psi, into one of the syrup systems.
Bag-in-Box Syrup System.
Place all bag-in-box syrup containers syrup outlet tubes in container containing potable water.
20. Flush sanitizing solution from the syrup system and the dispensing valve as follows:
A. Place waste container under applicable dispensing valve.
B. Activate the dispensing valve for one minute to purge all sanitizing solution out of the syrup system
and the dispensing valve.
C. Continue to activate the dispensing valve in cycles (“ON” for 15-seconds, “OFF”, then “ON” for
15-seconds). Repeat “ON” and “OFF” cycles for 15-cycles.
21. Repeat steps 19 and 20 preceding to purge sanitizing solution out of the remaining syrup systems and
dispensing valves.
22. Remove potable water source from the syrup system.
STEP 5. PURGE WATER OUT OF SYRUP SYSTEMS (RESTORE OPERATION)
23. Syrup Tank Systems.
A. Noting syrup tanks CO2regulator pressure setting observed in step 4 preceding, readjust CO2regula-
tor to the observed pressure setting,
B. Connect tanks containing syrup into syrup systems.
Bag-in-Box Syrup System.
C. Remove all bag valves from bag-in-box syrup containers outlet tubes connectors.
D. Connect bag-in-box syrup containers into the syrup systems.
24. Place waste container under dispensing valves. Dispense from all dispensing valves to permit syrup to
purge all potable water from the syrup systems and the dispensing valves. Continue to dispense from the
dispensing valves until only syrup is dispensed from the syrup systems and valves.
WARNING: To avoid possible personal injury or property damage, do not attempt to
remove the syrup tank cover until CO2pressure has been released from the tank.
25. Dispose of waste sanitizing solution in a sanitary sewer, not in a storm drain, then thoroughly rinse the in-
side and the outside of the container that was used for sanitizing solution to remove all sanitizing solution
residue.
ADJUSTING CARBONAT OR TANK LIQUID LEVELS
(see Figure 4)
NOTE: The carbonator tank liquid levels (40 to 60-ounces) pump cut-in and cut-out adjustments were
made at the factory and should require no further adjustments. If an incorrect adjustment is suspected,
check and make necessary adjustment as follows:
UNDER 40-OUNCES OF CARBONATED WATER DISPENSED
If total amount of carbonated water dispensed is under 40-ounces, loosen screw securing the switch adjustment
bracket and move bracket up slightly. Moving the bracket up allows weight of more water in the tank to push the
tank further down before activating the level control switches which shuts off the water pump motor. Tighten
screw after adjustment.
312021004 14
TANK BRACKET
SWITCH ADJUSTMENT
BRACKET
LEVEL CONTROL
SWITCH (2)
SWITCH ACTUATOR (2)
FIGURE 4. CARBONATOR LIQUID LEVEL CONTROL SWITCHES
OVER 60-OUNCES OF CARBONATED WATER DISPENSED
If total amount of carbonated water dispensed is over 60-ounces, loosen screw securing the switch adjustment
bracket and move the bracket down slightly . Moving the bracket down allows weight of less water in the tank to
activate the level control switches which shuts off the water pump motor. Tighten screw after adjustment.
CARBONATOR WATER PUMP YEARL Y MAINTENANCE
WARNING: The carbonator water pump water inlet strainer screen and the double liquid
check valve must be inspected and serviced at least once a year under normal
circumstances, and after any disruptions (plumbing work, earthquake, etc.) to the water
supply system that might cause turbulent (erratic) flow of water through the system. A carbonator
water pump with no screen or a defective screen in the strainer would allow foreign particles to
foul the double liquid check valve. CO2gas could then back flow into the water system and create
a health hazard in the water system.
SERVICING CARBONATOR WATER PUMP WATER STRAINER SCREEN
(see Figure 2, 3, and 5)
1. Remove top screw from ground strap securing hood to the Cooling Unit.
2. Remove acorn nut securing hood on the Unit, then lift hood straight up to remove.
3. Place carbonator and carbonated water circulating pump power switches, located on the control box, in
“OFF” positions.
4. Close carbonator assembly plain water inlet supply line shutoff valve.
5. Observe pressure setting on carbonator CO2regulator with 160-psi gage. Turn CO2regulator adjusting
screw to the left (counterclockwise) until it’s gage reads 0-psi.
6. Release CO2pressure from carbonator tank by using relief valve on top of the tank.
7. Remove four screws securing grille on the Cooling Unit, then remove grille for access to the carbonator
assembly water pump.
8. Loosen screen retainer, then pull screen retainer and strainer screen from the water pump.
9. Pull strainer screen from screen retainer. Clean any sediment from the screen retainer and pump screen
retainer port.
10. Inspect strainer screen for holes, restrictions, corrosion and other damage. Discard damaged strainer
screen.
31202100415
11. Check O-Ring on screen retainer. Replace worn or damaged O-Ring (P/N 315349-000).
Note: A strainer screen should always be used, otherwise particles could foul the double liquid check
valve.
12. Install a good or a new strainer screen (P/N 315348-000) in the screen retainer, then screw the retainer
into the water pump and tighten securely .
13. Service the water inlet double liquid check valve (refer to “Servicing Carbonator Water Inlet Double Liquid
Check Valve” in next paragraph.
SERVICING CARBONATOR WATER INLET DOUBLE LIQUID CHECK VALVE
(see Figure 2 and 5)
1. Service water strainer screen as instructed in previous paragraph before servicing the double liquid check
valve.
2. Loosen screw on the water pump coupling, then turn the pump to the left (counterclockwise) for access to
the double liquid check valve.
3. Disconnect the carbonator tank water inlet line from the double liquid check valve outlet, then remove the
double liquid check valve from elbow in the water pump outlet.
4. Remove one check valve from the other, then disassemble each check valve as shown in Figure 6.
5. Wipe each part with a lint-free cloth. Inspect each part, especially the ball, for burrs, nicks, corrosion, deterioration, and other damage. Discard ball seat and any damaged or suspicious parts and replace with new
parts during reassembly.
6. Reassemble check valves as shown in Figure 6. ALWAYS INSTALL A NEW BALL SEAT (QUAD RING)
P/N 312418000).
NOTE: Make sure when assembling the check valves together, check valve female end with white tapered gasket inside, is on inlet side of the double liquid check valve assembly.
7. Assemble check valves together as shown in Figure 5. DO NOT OVER TIGHTEN.
8. Make sure white tapered gasket is in place inside female end of the double liquid check valve, then install
the double liquid check valve on elbow in the water pump outlet port.
9. Connect carbonator tank water inlet line to the double liquid check valve outlet.
10. Rotate the water pump to the right (clockwise) back to the original position. Tighten screw on the pump-tomotor coupling to secure the pump.
11. Turn the carbonator CO2regulator adjusting screw to the right (clockwise) until it’s gage indicates pressure
settings observed in step 5 of “Servicing Carbonator Water Pump Water Strainer Screen”.
12. Open carbonator assembly plain water inlet supply line shutoff valve.
13. Place carbonator and carbonated water circulating pumps power switches in “ON” positions.
14. Check for water leaks and repair if evident.
15. Install lower grille on the Unit and secure with four screws.
16. Install Cooling Unit hood and secure with acorn nut.
17. Install screw in the hood ground strap to secure strap to the hood.
312021004 16
SCREEN RETAINER
O-RING (P/N 315349000)
WATER STRAINER
SCREEN (P/N 315348000)
WATER LINE TO T ANK
LIQUID DOUBLE
CHECK VALVE
WHITE TAPERED
GASKET
SAFETY THERMOSTAT
WATER PUMP
PUMP-TO-MOTOR COUPLING
FIGURE 5. WA TER STRAINER SCREEN AND DOUBLE LIQUID CHECK VALVE
Index
No. Part No. Name
*1 317963000 Housing
1
3
2
4
5
6
2 312415000 Flat Washer, Stainless Steel
3 *312418000 Ball Seat (quad ring)
4 312419000 Ball
5 312196000 Spring
6 317965000 Retainer
*Install new ball seat at each servicing.
FIGURE 6. LIQUID CHECK VALVE ASSEMBLY
31202100417
CLEANING CO2GAS CHECK VALVES
(see Figure 2 and 7)
The CO2gas check valves must be inspected and serviced at least once a year under normal conditions and
after any servicing or disruption of the CO2system. ALWAYS REPLACE THE QUAD RING SEAL EACH TIME
THE GAS CHECK VALVES ARE SERVICED.
QUAD RING
183294000
BALL
183296000
SPRING
183297000
RETAINER
183298000
BODY
183295100
*Quad ring seal must be replaced
each time check valve is serviced.
FIGURE 7. CO2GAS CHECK VALVE
LUBRICATION
CARBONATOR WATER PUMP MOTOR LUBRICATION
The carbonator water pump motor bearings must be oiled periodically . Refer to oiling instructions on the motor
(DO NOT OVER OIL).
CARBONATED WATER CIRCULATING PUMP MOTOR LUBRICATION
The carbonator water circulating pump motor bearings must be oiled periodically. Refer to oiling instructions on
the motor (DO NOT OVER OIL).
REPLENISHING SYRUP SUPPLY
1. Remove CO2and syrup quick disconnects from the empty soft drink tank.
2. Place full soft drink tank in position, then connect CO2and syrup quick disconnects to the tank.
SYRUP FLAVOR CHANGE
Sanitize the syrup system as instructed, then install a full tank of new flavor syrup.
312021004 18
RELAY
AGITATOR MOTOR
GREEN
RUN CAPACITOR
START CAPACIT OR
FIGURE 8. WIRING DIAGRAM (DROP-IN REFRIGERATION ASS’Y)
FAN MOTOR
ICE BANK CONTROL
RELAY
CONTROL BOX
TERMINAL BLOCK
GREEN
BLACK
WHITE OR
BLUE
FIGURE 9. WIRING DIAGRAM (LOWER COOLING UNIT CABINET)
19
312021004
THIS PAGE LEFT BLANK INTENTIONALLY
20312021004
TROUBLESHOOTING
IMPORTANT: Only qualified personnel should service internal components or electrical wiring.
WARNING: If repairs are to be made to a product system, remove quick disconnects from
the applicable product tank, then relieve the system pressure before proceeding. If repairs
are to be made to the CO2system, stop dispensing, shut off the CO2supply , then relieve the
system pressure before proceeding. If repairs are to be made to the refrigeration system, make sure
electrical power is disconnected from the unit.
Trouble Probable Cause Remedy
WATER-TO-SYRUP “RATIO”
OF DISPENSED DRINK TOO
LOW OR TOO HIGH
ADJUSTMENT OF
DISPENSING VALVE SYRUP
FLOW REGULATOR DOES
NOT INCREASE TO DESIRED
WATER-TO-SYRUP “RATIO”
A. Dispensing valve syrup flow
regulator not properly
adjusted.
B. CO2gas pressure to syrup
tanks insufficient to push syrup
out of tanks.
A. No syrup supply. A. Replenish syrup supply as
B. Syrup tank quick disconnects
not secure.
C. Syrup tanks secondary CO
regulator out of adjustment.
D. Dispensing valve syrup flow
regulator, soft drink tank quick
disconnect, or syrup line
restricted.
E. Tapered nylon washer inside
tube swivel nut connection
distorted from being over
tightened restricting syrup flow.
A. Adjust Water-To-Syrup “Ratio”
(refer to dispensing station
Installation Instructions).
B. Adjust syrup tanks secondary
CO2regulator as instructed.
instructed.
B. Secure quick disconnects.
C. Adjust syrup tanks secondary
2
CO2regulator as instructed.
D. Sanitize syrup system as
instructed.
E. Replace nylon washer. Make sure
washer seats properly in swivel
nut.
ADJUSTMENT OF
DISPENSING VALVE SYRUP
FLOW REGULATOR DOES
NOT DECREASE TO
DESIRED WATER-TO-SYRUP
“RATIO”
F. Dirty or inoperative piston or
cylinder in dispensing valve
syrup flow regulator.
A. Dirty or inoperative piston or
cylinder in dispensing valve
syrup flow regulator.
21
F. Sanitize syrup system as
instructed and if necessary ,
disassemble and clean the
dispensing valve.
A. Sanitize syrup system as
instructed and if necessary ,
disassemble and clean the
dispensing valve.
312021004
Trouble Probable Cause Remedy
DISPENSED PRODUCT
CARBONATION TOO LOW
DISPENSED PRODUCT
COMES OUT OF
DISPENSING VALVE CLEAR
BUT FOAMS IN CUP OR
GLASS
DISPENSED PRODUCT
PRODUCES FOAM AS IT
LEAVES DISPENSING VALVE
A. Carbonator CO2regulator out
of adjustment for existing
water conditions or
temperature.
B. Water, oil, or dirt in CO
2
supply .
A. Oil film or soap scum in cups
or glasses.
B. Ice used for finished drinks is
sub-cooled.
A. Carbonator CO2regulator
pressure set too high for
existing water conditions or
temperature.
A. Adjust carbonator CO2regulator
as instructed.
B. Remove contaminated CO
2
supply . Clean CO2system (lines,
regulators, etc.) using a mild
detergent. Replenish with a clean
CO2supply .
A. Use clean cups or glasses.
B. Do not use ice directly from
freezer. Allow ice to become “wet”
before using (refer to following
NOTE).
A. Reduce carbonator CO2regulator
pressure as instructed.
ONLY CARBONATED WATER
DISPENSED
B. Syrup over carbonated with
CO2.
B. Remove syrup tank quick
disconnects. Relieve tank CO
pressure, shake tank vigorously ,
then relieve tank CO2pressure as
many times as necessary to
remove over carbonation.
C. Tapered nylon washer inside
tube swivel nut connection
distorted from being over
C. Replace nylon washer. Make sure
washer is properly seated in
swivel nut.
tightened restricting syrup flow.
A. Quick disconnect not secure
on syrup tank.
A. Secure quick disconnect on syrup
tank.
B. Out of syrup. B. Replenish syrup supply as
instructed.
C. Inoperative dispensing station. C. Repair dispensing station.
D. Dispensing valve syrup flow
regulator not properly
adjusted.
D. Adjust dispensing valve syrup
flow regulator (refer to Installation
Instructions provided with
dispensing station).
E. Dispensing valve syrup flow
regulator, soft drink tank quick
E. Sanitize syrup system as
instructed.
disconnect, or syrup line
restricted.
2
22312021004
Trouble Probable Cause Remedy
ONLY SYRUP DISPENSED A. Plain water inlet supply line
shutoff valve closed.
B. Carbonator power switch in
“OFF” position.
C. Carbonator inoperable. C. Repair carbonator.
D. Water filter clogged. D. Replace water filter.
WARM PRODUCT BEING
DISPENSED
A. Carbonated water circulating
pump power switch in “OFF”
position.
B. Inoperable carbonated water
circulating pump or motor.
TROUBLESHOOTING CARBONATOR
WATER PUMP MOTOR WILL
NOT OPERATE
A. Carbonator power switch in
“OFF” position.
B. Inoperative water pump motor. B. Replace water pump motor.
C. Dirty balance mechanism. C. Clean balance mechanism.
D. Loose connections and/or
open electrical circuit.
A. Open plain water inlet supply line
shutoff valve.
B. Place carbonator power switch in
“ON” position.
A. Place circulating pump power
switch in “ON” position.
B. Replace pump or motor.
A. Place carbonator switch in “ON”
position.
D. Tighten connections and/or repair
open circuit.
WATER PUMP MOTOR WILL
NOT SHUT OFF
E. Over heated motor cut off by
thermal overload protector.
E. Check for proper line voltage.
Check for restricted pump
discharge.
F. Inoperative level control
F. Replace level control switches.
switches.
G. Binding or damaged balance
mechanism.
H. Water pump binding (new or
replacement pumps only).
G. Repair or replace balance
mechanism.
H. Remove water pump from motor,
rotate pump motor shaft 180°,
then recouple pump to motor.
I. Water pump damaged. I. Replace water pump.
J. Safety thermostat inoperative. J. Replace safety thermostat.
A. Foreign object restricting tank
A. Remove foreign object.
movement.
B. Dirty balance mechanism. B. Clean balance mechanism.
C. Leak in carbonated water line. C. Tighten or replace line.
D. Inoperative level control
D. Replace level control switches.
switches.
E. Binding or damaged balance
mechanism.
E. Repair or replace balance
mechanism.
23
312021004
Trouble Probable Cause Remedy
ERRATIC CYCLING OF
CARBONATOR
WATER PUMP MOTOR
OPERATES BUT WATER
PUMP DOES NOT PUMP
WATER
WATER PUMP CAPACITY
TOO LOW
A. Balance mechanism spring
obstructed or “cocked”.
B. Dirty balance mechanism. B. Clean balance mechanism.
A. Water pump inlet water
strainer screen is dirty and is
clogged.
B. Kinked water supply line. B. Remove kink from water supply
C. Restriction between water
pump outlet and carbonator
tank inlet.
D. Foreign object in water pump
bypass.
E. Water pump worn out. E. Replace water pump.
A. Water pump inlet water
strainer screen dirty.
A. Remove obstruction. Make sure
spring is perpendicular to spring
and is not twisted.
A. Clean or replace water strainer
screen as instructed.
line.
C. Remove restriction.
D. Clean water bypass. (NOTE:
Count number of turns bypass
screw makes when removing.
Install screw same number of
turns).
A. Clean or replace water strainer
screen as instructed.
B. Water supply capacity too low. B. Inlet water supply must be a
C. Water filter clogged. C. Replace water filter cartridge as
D. Inoperative water pump. D. Replace water pump.
TROUBLESHOOTING REFRIGERATION SYSTEM
Trouble Probable Cause Remedy
COMPRESSOR DOES NOT
OPERATE
A. Ice bank sufficient. A. Refrigeration not called for.
B. Electrical power to Cooling
Unit turned off.
C. No Cooling Unit power source.
Blown fuse or tripped circuit
breaker.
D. Low voltage. D. Voltage must be at least 208 volts
minimum of 150-gallons per hour
with a maximum water pressure
of 70-psi.
instructed.
B. Turn on electrical power to
Cooling Unit or plug in
refrigeration system power cord.
C. Replace fuse or reset circuit
breaker.
at compressor terminals when
compressor is trying to start.
E. Loose, disconnected, or
broken wiring.
24312021004
E. Tighten connections or replace
broken wiring.
Trouble RemedyProbable Cause
COMPRESSOR DOES NOT
OPERATE (CONT’D)
COMPRESSOR WILL NOT
STOP AFTER SUFFICIENT
ICE BANK IS PRODUCED.
(NOTE: ICE BANK SHOULD
JUST COVER CONTROL
BULB)
COMPRESSOR OPERATES
CONTINUOUSLY BUT DOES
NOT FORM SUFFICIENT ICE
BANK
F. Compressor overload
protector cutout (dirty and
obstructed condenser coil air
F. Clean condenser coil air filter as
instructed or repair condenser fan
motor.
filter or inoperable condenser
fan motor)
G. Inoperative overload protector
G. Replace inoperative part.
or start relay.
H. Inoperative ice bank control. H. Replace ice bank control.
I. Inoperative compressor. I. Replace compressor.
A. Ice bank control cap tube
A. Replace ice bank control.
kinked or broken.
B. Ice bank control stuck in
B. Replace ice bank control.
closed position.
A. Cooling capacity is exceeded
by over drawing.
A. Reduce amount of drinks drawn
per given time.
B. Cooling Unit located in
excessively hot area or air
circulation through condenser
B. Relocate Cooling Unit or check
and if necessary, clean condenser
coil air filter as instructed.
coil is restricted.
NOTE: Ice bank freezes from bottom of evaporator upward. A refrigerant leak or insufficient charge
might show an ice bank at bottom and not at top of evaporator.
CONDENSER FAN MOTOR
NOT OPERATING
A. Jumper cord loose or
disconnected from condenser
A. Tighten connections or replace
cord.
fan motor or compressor
terminals. Broken wire in cord.
B. Fan blade obstructed. B. Remove obstruction.
C. Inoperative condenser fan
C. Replace condenser fan motor.
motor.
AGITATOR MOTOR NOT
OPERATING
A. Agitator motor propeller
obstructed.
A. Remove obstruction.
B. Low voltage. B. Voltage must be at least 208 volts
at compressor terminals when
compressor is trying to start.
C. Loose, disconnected, or
broken wiring.
C. Tighten connections or replace
broken wiring.
D. Inoperative agitator motor. D. Replace agitator motor.
25
312021004
WARRANTY
IMI Cornelius Inc. warrants that all equipment and parts are free from defects in material and workmanship under normal use and service. For a copy of the warranty applicable to your Cornelius, Remcor or Wilshire product, in your country, please write, fax or telephone the IMI Cornelius office nearest you. Please provide the
equipment model number, serial number and the date of purchase.
IMI Cornelius Offices
AUSTRALIA D P.O. 210, D RIVERWOOD, D NSW 2210, AUSTRALIA D (61) 2 533 3122 D FAX (61) 2 534 2166
AUSTRIA D AM LANGEN FELDE 32 D A-1222 D VIENNA, AUSTRIA D (43) 1 233 520 D FAX (43) 1-2335-2930
BELGIUM D BOSKAPELLEI 122 D B-2930 BRAASCHAAT, BELGIUM D (32) 3 664 0552 D FAX (32) 3 665 2307
BRAZIL D RUA IT AOCARA 97 D TOMAS COELHO D RIO DE JANEIRO, BRAZIL D (55) 21 591 7150 D FAX (55) 21 593 1829
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FRANCE D 71 ROUTE DE ST. DENIS D F-95170 DEUIL LA BARRE D PARIS, FRANCE D (33) 1 34 28 6200 D FAX (33) 1 34 28 6201
GERMANY D CARL LEVERKUS STRASSE 15 D D-4018 LANGENFELD, GERMANY D (49) 2173 7930 D FAX (49) 2173 77 438
GREECE D 488 MESSOGION AVENUE D AGIA PARASKEVI D 153 42 D ATHENS, GREECE D (30) 1 600 1073 D FAX (30) 1 601 2491
HONG KONG D 1104 TAIKOTSUI CENTRE D 11-15 KOK CHEUNG ST D TAIKOKTSUE, HONG KONG D (852) 789 9882 D FAX (852) 391 6222
ITALY D VIA PELLIZZARI 11 D 1-20059 D VIMARCATE, ITAL Y D (39) 39 608 0817 D FAX (39) 39 608 0814
NEW ZEALAND D 20 LANSFORD CRES. D P.O. BOX 19-044 AVONDALE D AUCKLAND 7, NEW ZEALAND D (64) 9 8200 357 D FAX (64) 9 8200 361
SINGAPORE D 16 TUAS STREET D SINGAPORE 2263 D (65) 862 5542 D FAX (65) 862 5604
SPAIN D POLIGONO INDUSTRAIL D RIERA DEL FONOLLAR D E-08830 SANT BOI DE LLOBREGAT D BARCELONA, SPAIN D (34) 3 640 2839 D FAX (34) 3 654 3379
USA D ONE CORNELIUS PLACE D ANOKA, MINNESOTA D (612) 421-6120 D FAX (612) 422-3255
LD004
4/21/98
3120124004 26
IMI CORNELIUS INC.
CORPORATE HEADQUARTERS:
One Cornelius Place
Anoka, Minnesota 55303-6234
(612) 421-6120
(800) 238-3600
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