Cornelius Impulse Non-Carbonated Post-Mix Beverage... User manual

®
IMPULSE
Non-Carbonated Post-Mix Beverage Dispenser
Installation & Operation Manual
Release Date: December 16, 2003
Publication Number: 859000159INS
Revision Date: NA
Revision: A
www.cornelius.com

Impulse Installation and Operation Manual
Publication Number: 859000159INS - ii - © 2003, IMI Cornelius Inc.
CONTACT INFORMATION
This an abbreviated manual. Keep this manual in case there are
questions about operating the unit.
The products, technical information, and instructions contained in this manual are subject to change with-
out 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. Appropriate safety precautions
should be followed and all local safety and construction requirements should be met.
To inquire about current revisions of this and other documentation, or for assistance with any Cornelius
product contact:
Trademarks and copyrights:
Aurora, Cornelius, Decade, Hydro Boost, Olympus, Sitco, Spirit, UF-1, Vanguard, Venture, and Vista are
registered trademarks of IMI Cornelius.
Optifill trademark is pending.
This document contains proprietary information and it may not be reproduced in any way without permis-
sion from Cornelius.
Printed in U.S.A.
Copyright © 2003, All Rights Reserved, IMI Cornelius Inc.
IMI Cornelius Inc.
Corporate Headquarters
One Cornelius Place
Anoka, MN 55303-6234
U.S.A.
Internet:
www.cornelius.com
E-mail:
[e-mail]
In the U.S.A.:
phone: [phone]
800-238-3600
fax: [phone]
Outside the U.S.A.:
phone: [phone]
fax: [phone]

Impulse Installation and Operation Manual
© 2003, IMI Cornelius Inc. - i - Publication Number: 859000159INS
TABLE OF CONTENTS
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Recognize safety alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Authorized Service Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
CO2 (Carbon Dioxide) Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SYSTEM DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Requirements Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Counter-top Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Connect Concentrate and Water Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Adjust Water-To-Concentrate Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Adjusting Flow Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Starting And Stopping the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Dispensing Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Replenishing Concentrate Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Water-to-Concentrate Ratio Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Cleaning & Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Daily Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Daily Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Sanitizing Concentrate Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
REFERENCE MATERIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Impulse Installation and Operation Manual
Publication Number: 859000159INS - ii - © 2003, IMI Cornelius Inc.

Non-Carbonated Impulse Installation & Operations Manual
© 2003, IMI Cornelius Inc. - 1 - Publication Number: 859000159INS
SAFETY
AUTHORIZED SERVICE PERSONNEL
CAUTION —Only trained and certified electrical, plumbing and refrigeration techni-
cians should service this unit. ALL WIRING AND PLUMBING MUST CONFORM TO
NATIONAL AND LOCAL CODES.
CO2(CARBON DIOXIDE) WARNING
WARNING —CO2Displaces Oxygen. Strict Attention must be observed in the pre-
vention of CO2gas 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 CO2
gas will experience tremors which are followed rapidly by loss of consciousness and death.
SYSTEM DIMENSIONS
Impulse 1 Unit
Height 27 inches
Width 16 inches
Depth 26 7/8 inches
Shipping Weight
(approx.)
120 pounds
RECOGNIZE SAFETY ALERTS
This is the safety alert symbol. When you see it in this manual or on the

Non-Carbonated Impulse Installation & Operations Manual
Publication Number: 859000159INS - 2 - © 2003, IMI Cornelius Inc.
INSTALLATION
CAUTION —Only trained and certified electrical, plumbing and refrigeration techni-
cians should service this unit. ALL WIRING AND PLUMBING MUST CONFORM TO
NATIONAL AND LOCAL CODES.
NOTE: Water pipe connections and fixtures directly connected to the potable water supply must
be sized, installed, and maintained in accordance with NSF Standard 18, as well as Federal, State,
and Local codes.
NOTE: It is the installer’s responsibility to ensure that the water supply is equipped with protec-
tion against backflow. This protection can be an air gap as defined by ANSI/ASME A112.1.2-1979,
or by an approved vacuum breaker or other approved method.
INSTALLATION REQUIREMENTS
Requirements Summary
Weight:.................front or rear counter must be level and able to support 400 lbs.
Environment:........indoor installation only
Temperature:........40 to 110°F ambient temperature
Clearance:............18-inches above
6-inches on sides and rear
CO2: .....................75 psi (5.25 bar) at unit with internal carbonator
Concentrate: ........60 psi
Water:...................50 psi maximum
Electrical: .............see nameplate on unit for electrical requirements
Electrical Requirements
Before connecting electrical power to the unit refer to nameplate to verify power requirements.
DANGER —To avoid possible serious injury or death the ELCB (earth leakage circuit
breaker) must be installed in electrical circuit of all 50 Hz units.
WARNING —To avoid possible electrical shock the unit must be electrically grounded
using the green grounding screw provided inside the electrical contractor box.
CAUTION —The wiring must be properly grounded and connected through a 10-amp
disconnect switch (slow–blow fuse or equivalent HVAC/R circuit breaker). ALL WIRING
MUST CONFORM TO NATIONAL AND LOCAL CODES. MAKE SURE UNIT IS PROP-
ERLY GROUNDED.

Non-Carbonated Impulse Installation & Operations Manual
© 2003, IMI Cornelius Inc. - 3 - Publication Number: 859000159INS
INSTALLATION PROCEDURE
Counter-top Installation
NOTE: Optional 4-inch legs (p/n 3184) will elevate the unit 4 inches above counter (order 4 legs).
1. Place the unit on a level counter capable of supporting at least 400 pounds.
2. Remove drip tray and front access panel.
3. Turn power switch off then remove screw located next to the power switch and the screw at top of
front panel. Next, remove front panel, disconnect wires to valve key lock switch, and peal back
magnetic decals from the top. Lift off top center section.
4. Pull water, concentrate, and CO2lines through counter or wall. To comply with NSF International
requirements the unit must be sealed to the counter top and all access holes in the unit base must
be sealed, or the unit can be installed using the optional 4-inch legs (P/N 3184). Caulk/seal the unit
to the counter using Dow Corning RTV 731 or equivalent approved sealant.
5. Pull plastic “wire tie”to remove hitch pin from condenser fan motor assembly (this pin is only
needed during shipping).
6. Fill the water bath with clean water until it comes out the overflow tube. Make sure the overflow tube
is not blocked or plugged. Use low-mineral tap water, not distilled or deionized water.
NOTE: Water bath must be filled with water before the unit will run.
GLOBAL ICE BANK CONTROL (GIBO) THEORY OF OPERATION
Wire Tie Hitch Pin
Fill water
bath through
hole in top
Once electrical power is supplied to the
Unit, the agitator motor will start. There will
be a three-minute time delay before the
refrigeration compressor and the con-
denser fan motor will start. This three-
minute time delay will take place each time
electrical power to the Unit is interrupted.
The Unit will continue to operate until ice
covers all three stainless-steel pins on the
ice bank control probe. The ice bank control
module senses this by measuring the differ-
ence in electrical resistance between the
water and the ice. When the ice on the
evaporator coil becomes thick enough, it
covers the three stainless-steel pins on the
ice bank control probe. The control module
senses there is enough ice and turns the
refrigeration compressor and the con-
denser fan motor off.
The Unit remains turned off until the ice
bank control three stainless-steel pins are
free of ice. Once this happens, the ice bank
control module starts the refrigeration com-
pressor and the condenser fan motor.

Non-Carbonated Impulse Installation & Operations Manual
Publication Number: 859000159INS - 4 - © 2003, IMI Cornelius Inc.
NOTE: Make sure that the electrical power circuit breaker is switched off or the fuse removed.
Before connecting electrical power to the unit, refer to nameplate to verify the power require-
ments.
A. Remove the following:
•front merchandiser by removing two screws on the top and lifting up
•key switch wires
•hood by removing two screws on the top and lifting up and forward.
B. Remove second valve from the left to facilitate routing of the new cord.
C. First route the new cord up behind the valve panel and through the cutout in the pump deck. Use
the already attached wire tie/fastener on the deck to secure the cord.
D. Connect cord to the receptacle on the refrigeration deck.
E. Turn the circuit breaker on and then the units power switch. Check to see that the agitator motor
has started. After about three minutes the compressor should start. If the agitator or compressor
do not start call Technical Services.
Connect Concentrate and Water Lines
1. Route concentrate and plain water lines from the back side of the unit and under the unit to the
front. Connect them to the appropriate inlet connections.
NOTE: If water supply pressure to the unit is less than 40 psi, a water pressure booster is
required. If water supply pressure to the unit is more than 50 psi, a water pressure regulator must
be installed in the supply line.
NOTE: A water shutoff valve and water filter in the water supply line are recommended.
2. Make the connection behind the splash panel to the marked 3/8 water tubes.
3. Connect optional drip tray drain hose (if used). Be sure the knock-out in the drip pan has been
removed if drain hose is used.
4. Bleed each valve into a bucket until water comes out.
5. Be sure that all concentrate sources are connected and on. Bleed each valve into a bucket until
concentrate comes out.
6. Reinstall drip tray and position water bath overflow hose in drip tray indent.
7. Check the system for gas leaks by pressurizing the system and then turning off the cylinder valve.
Wait a couple of minutes and check the cylinder gauge to see if the pressure has dropped.
8. Check the system for water and concentrate leaks.
Adjust Water-To-Concentrate Ratio
1. Remove valve front cover and install concentrate diversion assembly in place of nozzle.
2. Adjust carbonated water flow to the desired rate (such as 2.50 oz./sec.).
Turn the adjuster 1/4 of a turn at a time and recheck the flow.
To increase flow turn clockwise.
3. Adjust the concentrate-to-water ratio of each valve using the concentrate adjuster on the left side of
each valve. Hold cup under valve and dispense beverage for a specific time (such as 4 seconds).
Concen-
trate diver-
sion tube
Water flow
adjuster on
left Concentrate
adjuster on
right
Ratio cup

Non-Carbonated Impulse Installation & Operations Manual
© 2003, IMI Cornelius Inc. - 5 - Publication Number: 859000159INS
Adjusting Flow Rates
Flow rates of the water and concentrate are adjusted based on the desired ratio. For example: if the
desired ratio is 5:1, then the flow rate of the water is 5 times that of the concentrate.
If the desired finished drink flow rate is 3.0 ounces per second, then the water flow rate is 2.5 oz./sec.
and the concentrate flow rate is 0.5 oz./sec. (The water at 2.5 oz./sec. is five times the 0.5 oz./sec. con-
centrate flow rate.)
Flow Rates oz./sec. Based on 5:1 Ratio
Finished Drink oz./sec. Water oz./sec. Concentrate oz./
sec.
1.5 1.25 .25
2.0 1.67 .33
2.5 2.08 .42
3.0 2.5 .50
3.5 2.92 .58
4.0 3.33 .67
4.5 3.75 .75

Non-Carbonated Impulse Installation & Operations Manual
Publication Number: 859000159INS - 6 - © 2003, IMI Cornelius Inc.
OPERATIONS
OPERATIONS
Starting And Stopping the Unit
1. Push power ON/OFF switch to ON to power on the unit.
2. Insert key into key lock and turn to the ON to activate valves.
Dispensing Product
To dispense beverage press a cup or glass against the lever or push the button on the valve cover.
Replenishing Concentrate Supply
Bag-In-Box System:
1. Disconnect the concentrate tube from the empty bag-in-box and remove the empty box.
2. Rinse the disconnects in warm water to remove any concentrate residue.
3. Install a full bag-in-box and connect the concentrate tube.
ADJUSTMENTS
Water-to-Concentrate Ratio Adjustment
The ratio adjustment should only be done by a qualified service person.
Key-lock
switch
ON/OFF switch

Non-Carbonated Impulse Installation & Operations Manual
© 2003, IMI Cornelius Inc. - 7 - Publication Number: 859000159INS
CLEANING & CHECKS
Daily Cleaning
1. Remove nozzle assembly and rinse with warm (not hot) water. If possible, soak nozzle assembly
over night in carbonated water then rinse with warm water.
2. Wash external surfaces with mild soap solution, rinse with clean water, and wipe dry. Remove the
drip tray, wash with mild soap solution, rinse and dry.
NOTE: Do not use abrasive or harsh cleaners on the unit.
Daily Checks
1. Check CO2supply.
2. Check concentrate supply.
Sanitizing Concentrate Systems
The concentrate systems should be sanitized at least every 120-days and before or after storage. Use a
non-scented liquid household bleach containing a 5.25% sodium hypochlorite concentration per the fol-
lowing procedure:
IMPORTANT: Only qualified Service Personnel should perform sanitizing procedure on the post-
mix
1. Rinse bag-in-box connectors (concentrate bag-in-box systems) in warm potable water.
STEP 1. Wash Concentrate Systems
1. Using a five-gallon container (bag-in-box system), prepare a full tank or container of liquid dish-
washer detergent by using 70oF (21oC) to 100oF (38oC) 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.
2. Bag-in Box Concentrate Systems.
A. Install bag valves, cut from empty bag-in-box concentrate containers, on ends of concentrate
containers concentrate outlet tubes connectors.
B. Place all concentrate outlet tubes, with bag valves on their ends, in container containing deter-
gent solution.
3. Flush the concentrate 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 concentrate and flush out the concen-
trate system.
4. Repeat the process for each concentrate circuits.
5. Remove detergent solution source from the concentrate system.
STEP 2. Flush Concentrate Systems
Fill five-gallon container with potable water, then place all bag-in-box concentrate containers concentrate
outlet tubes in container containing potable water.
1. Flush detergent solution out of the concentrate 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 con-
centrate system.
Diffuser
Nozzle

Non-Carbonated Impulse Installation & Operations Manual
Publication Number: 859000159INS - 8 - © 2003, IMI Cornelius Inc.
2. Connect potable water source to the remaining concentrate systems and flush detergent solution
out of the concentrate systems as instructed in step 9 preceding.
3. Remove potable water source from the concentrate system.
STEP 3. Sanitize Concentrate Systems
1. Using five-gallon container (bag-in-box system), prepare sanitizing solution using 70oF (21oC)
to100oF (38oC) potable water and 0.5 oz. (15 ml) of non-scented household liquid bleach that con-
tains 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.
2. Bag-in-Box Concentrate System.
Place all bag-in-box concentrate containers concentrate outlet tubes in container containing sanitiz-
ing solution.
3. Sanitize the concentrate 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 concentrate 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.
4. Repeat step 3 to flush water out of and install sanitizing solution in the remaining concentrate sys-
tems and dispensing valves.
5. Remove sanitizing solution source from the concentrate system.
6. Allow sanitizing solution to remain in the concentrate systems for not less than 10 or no more than
15-minutes.
STEP 4. Water Flush Concentrate Systems
WARNING: Flush sanitizing solution from the concentrate systems as instructed. Residual sanitizing
solution left in the concentrate systems could create a health hazard.
1. Bag-in-Box Concentrate System.
Place all bag-in-box concentrate containers concentrate outlet tubes in container containing potable
water.
2. Flush sanitizing solution from the concentrate 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 concentrate
system and the dispensing valve.
3. Repeat this process for each concentrate curcuit.
4. Remove potable water source from the concentrate system.
STEP 5. Purge Water out of Concentrate Systems (Restore Operation)
1. Bag-in-Box Concentrate System.
A. Remove all bag valves from bag-in-box concentrate containers outlet tubes connectors.
B. Connect bag-in-box concentrate containers into the concentrate systems.
2. Place waste container under dispensing valves. Dispense from all dispensing valves to permit con-
centrate to purge all potable water from the concentrate systems and the dispensing valves. Con-
tinue to dispense from the dispensing valves until only concentrate is dispensed from the
concentrate systems and valves.
3. Dispose of waste sanitizing solution in a sanitary sewer, not in a storm drain, then thoroughly rinse
the inside and the outside of the container that was used for sanitizing solution to remove all sanitiz-
ing solution residue.

Non-Carbonated Impulse Installation & Operations Manual
© 2003, IMI Cornelius Inc. - 9 - Publication Number: 859000159INS
REFERENCE MATERIAL
WIRING DIAGRAM

Non-Carbonated Impulse Installation & Operations Manual
Publication Number: 859000159INS - 10 - © 2003, IMI Cornelius Inc.
PLUMBING DIAGRAMS
Internal Carbonator
External Carbonator
COOLING
COILS
DISPENSE
R
CARBONATE
D
WATER
MANIFOLD
PLAIN
WAT ER
LINE LEGEND
CO2
PLAIN WATER
SYRUP
1
2
3
4
5
6
SYRUP SUPPLY
(SYRUP TANKS OR
BAG-IN-BOX SYSTEM)
REMOTE
CARBONATOR
NON-CARBONATED
DRINK
D
I
S
P
E
N
S
I
N
G
V
A
L
V
E
(
6
)
CO2 CHECK
VALVE
REGULATED
CO2 SUPPLY
CARB WATER

Non-Carbonated Impulse Installation & Operations Manual
© 2003, IMI Cornelius Inc. - 11 - Publication Number: 859000159INS

Non-Carbonated Impulse Installation & Operations Manual
Publication Number: 859000159INS - 12 - © 2003, IMI Cornelius Inc.
TROUBLESHOOTING
Trouble Probable Cause Remedy
Troubleshooting Dispensing System
WATER-TO-CONCENTRATE
“RATIO”TOO LOW OR TOO
HIGH.
•Dispensing valve concentrate
flow regulator not properly
adjusted.
•Adjust Water-to-Concentrate
“Ratio”as instructed.
•CO2 gas pressure to concen-
trate pumps insufficient to oper-
ate pumps.
•Adjust concentrate pumps CO2
regulator as instructed.
ADJUSTMENT OF DISPENSING
VALVE CONCENTRATE FLOW
REGULATOR DOES NOT
INCREASE TO DESIRED
WATER-TO-CONCENTRATE
“RATIO”.
•No concentrate supply. •Replenish concentrate supply
as instructed.
•Concentrate supply container
not securely connected into
concentrate system.
•Securely connect concentrate
supply container into concen-
trate system.
•Concentrate pumps CO2 regu-
lator out of adjustment. •Adjust concentrate pumps CO2
regulator as instructed.
•Dispensing valve syrup flow
regulator, syrup tank quick dis-
connect, or syrup line
restricted.
•Sanitize syrup system as
instructed.
•Improper Baume of concen-
trate. •Replace concentrate supply.
•Dirty or inoperative concen-
trate flow regulator. •Disassemble and clean dis- pensing valve concentrate flow
regulator.
•Tapered plastic washer inside
tube swivel nut connection dis-
torted from being over tight-
ened restricting concentrate
flow.
•Replace plastic washer. Make
sure it seats properly.
ADJUSTMENT OF DISPENSING
VALVE CONCENTRATE REGU-
LATOR DOES NOT DECREASE
TO DESIRED WATER-TO-CON-
CENTRATE “RATIO”.
•Dirty or inoperative concen-
trate flow regulator. •Disassemble and clean dis- pensing valve concentrate flow
regulator.
NO PRODUCT DISPENSED. •Dispensing valves keyed lock-
out switch in “OFF”position. •Place keyed lock-out switch in “ON”position.
•No electrical power to Unit. •Plug in Unit power cord or
check for blown fuse or tripped
circuit breaker.
•Disconnected dispensing valve
power cord. •Connect dispensing valves power cord.
•Disconnected or broken wiring
to dispensing valves. •Connect or replace wiring.
•Inoperative transformer or dis-
pensing valve solenoids. •Replace inoperative part.
ONLY CONCENTRATE DIS-
PENSED. •Water inlet supply line shutoff valve closed. •Open water inlet supply line shutoff valve.

Non-Carbonated Impulse Installation & Operations Manual
© 2003, IMI Cornelius Inc. - 13 - Publication Number: 859000159INS
Troubleshooting Refrigeration System
COMPRESSOR DOES NOT
OPERATE. •Ice bank sufficient. •Refrigeration not called for.
•Unit power cord unplugged or
control board power switch in
“OFF”position.
•Plug in power cord or place
switch in “ON”position.
•No power source (blown fuse or
tripped circuit breaker). •Replace fuse or reset circuit breaker (note: Fuse or circuit
breaker are not part of unit).
•Low voltage at compressor ter-
minals. •Voltage must be at least 103 volts at the compressor termi-
nals when compressor is trying
to start.
•Loose, disconnected or broken
wiring. •Tighten connections or replace broken wiring.
•Overload protector cut out; over
heated compressor. Con-
denser fan motor not operating
as required.
•Compressor will cool enough to
restart. Do not overdraw cool-
ing capacity of unit. Refer to
“CONDENSER FAN MOTOR
NOT OPERATING”in this sec-
tion.
•Inoperative overload protector
or start relay. •Replace inoperative part as
•Inoperative ice bank control. •Replace ice bank control.
•Inoperative compressor. •Replace compressor.
COMPRESSOR WILL NOT STOP
AFTER SUFFICIENT ICE BANK
IS FORMED.
•Inoperative thermistor. •Replace thermistor.
•Damaged ice bank control wire. •Repair ice bank control.
•Inoperative control board. •Replace control board.
COMPRESSOR OPERATED
CONTINUOUSLY BUT DOES
NOT FORM SUFFICIENT ICE
BANK.
•Cooling capacity is exceeded
by overdrawing. •Reduce amount of drinks drawn per given time.
•Unit located in excessively hot
area or air circulation through
condenser is restricted.
•Relocate unit or determine and
correct condenser coil restric-
tions.
•Refrigeration system leak. •Repair refrigeration system.
NOTE: The ice bank freezes from the bottom of the evaporator upward. A refrigerant leaks or
insufficient charge might show an ice bank at bottom and not at the top of evaporator.
NOTE: If overload protector cuts our compressor, condenser fan motor will continue to operate,
otherwise, troubleshooting condenser fan motor problems are the same as “COMPRESSOR
DOES NOT OPERATE”paragraph plus the preceding.
CONDENSER FAN MOTOR NOT
OPERATING. •Jumper cord loose or discon- nected from motor or terminal
block. Broken wire in cord.
•Tighten connections or replace
cord.
•Fan blade obstructed. •Remove obstruction.
•Inoperative condenser fan
motor. •Replace condenser fan motor.
AGITATOR MOTOR NOT OPER-
ATING. •Unit power cord or refrigeration system power cord unplugged. •Plug in power cord.

Non-Carbonated Impulse Installation & Operations Manual
Publication Number: 859000159INS - 14 - © 2003, IMI Cornelius Inc.
•No power source. Blown fuse
or. tripped circuit breaker •Replace fuse or reset circuit breaker (note: Fuse or circuit
breaker are not part of unit).
•Agitator motor propeller
obstructed. •Remove obstruction.
•Low voltage at compressor ter-
minals. •Voltage must be at least 103 volts at the compressor termi-
nals when compressor is trying
to start.
•Loose, disconnected, or bro-
ken wiring. •Tighten connections or replace broken wiring.
•Inoperative agitator motor. •Replace agitator motor as
instructed.

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IMI Cornelius Inc.
One Cornelius Place
Anoka, MN 55303-1592
U.S.A.