Carrier C302 NPR User manual

Model C302 NPR
Non--Pressurized
Slush Freezer
Operating Instructions
059661NPR
9/22/06

Complete this page for quick reference when service is required:
Taylor Distributor:
Address:
Phone:
Fax:
E--mail:
Service:
Parts:
Date of Installation:
Information found on the data label:
Model Number:
Serial Number:
Electrical Specs: Voltage Cycle
Phase
Maximum Fuse Size: A
Minimum Wire Ampacity: A
ESeptember, 2006 Taylor
All rights reserved.
059661NPR
The word Taylor and the Crown design
are registered trademarks in the United States
of America and certain other countries.
Taylor Company
a division of Carrier Commercial Refrigeration, Inc.
750 N. Blackhawk Blvd.
Rockton, IL 61072

Model C302 NPR Table of Contents
Table of Contents
Section 1 To the Installer 1............................................
Installer Safety 1........................................................
Site Preparation 1.......................................................
Air Cooled Units 1.......................................................
Water Cooled Refrigeration Units (Water Cooled Units Only) 2................
Electrical Connections 3.................................................
Beater Rotation 3.......................................................
Refrigerant 4...........................................................
Section 2 To the Operator 5...........................................
Section 3 Safety 6....................................................
Section 4 Operator Parts Identification 8...............................
Beater Door Assembly 9.................................................
Accessories 10..........................................................
Section 5 Important: To the Operator 11.................................
Symbol Definitions 11....................................................
Control Switches 12......................................................
Liquid Crystal Displays 12.................................................
Operational Mode Displays 12.............................................
Operator Menu Display 13................................................
Syrup Out Indicator 18....................................................
CO2 Out Indicator 18.....................................................
Water Out Indicator 18....................................................
Audio Alarm Silencer 19..................................................
Product Light 19.........................................................
Sampling Valve 19.......................................................
Daily Procedures 19......................................................

Table of Contents Model C302 NPR
Table of Contents - Page 2
Section 6 Operating Procedures 20.....................................
Assembly 20............................................................
Sanitizing 24............................................................
Priming/Brixing 26........................................................
120 Day Closing Procedure 28............................................
Draining Product From the Freezing Cylinders 29............................
Rinsing 29..............................................................
Cleaning 30.............................................................
Disassembly 31..........................................................
Brush Cleaning 31.......................................................
Section 7 Important: Operator Checklist 32..............................
During Cleaning and Sanitizing 32.........................................
Troubleshooting Bacterial Count 32........................................
Regular Maintenance Checks 32...........................................
Winter Storage 33........................................................
Section 8 Troubleshooting Guide 34....................................
Section 9 Parts Replacement Schedule 36...............................
Section 10 Parts List 37.................................................
Wiring Diagrams 47......................................................
Note: Continuing research results in steady improvements; therefore, information
in this manual is subject to change without notice.
ESeptember, 2006 Taylo
r
All rights reserved.
059661NPR
The word Taylor and the Crown design
are registered trademarks in the United States
of America and certain other countries.
Taylor Company
a division of Carrier Commercial Refrigeration, Inc.
750 N. Blackhawk Blvd.
Rockton, IL 61072

1
Model C302 NPR To the Installer
081208
Section 1 To the Installer
The following are general installation instructions.
For complete installation details, please see the
check out card.
Installer Safety
In all areas of the world, equipment should
be installed in accordance with existing local codes.
Please contact your local authorities if you have any
questions.
Care should be taken to ensure that all basic safety
practices are followed during the installation and
servicing activities related to the installation and
service of Taylor equipment.
SOnly authorized Taylor service personnel
should perform installation and repairs on
the equipment.
SAuthorized service personnel should consult
OSHA Standard 29CFRI910.147 or the
applicable code of the local area for the
industry standards on lockout/tagout
procedures before beginning any installation
or repairs.
SAuthorized service personnel must ensure
that the proper PPE is available and worn
when required during installation and
service.
SAuthorized service personnel must remove
all metal jewelry, rings, and watches before
working on electrical equipment.
The main power supply(s) to the equipment
must be disconnected prior to performing any
repairs. Failure to follow this instruction may result in
personal injury or death from electrical shock or
hazardous moving parts as well as poor
performance or damage to the equipment.
Note:Allrepairsmustbeperformedbyan
authorized Taylor Service Technician.
This unit has many sharp edges that can
cause severe injuries.
Site Preparation
Review the area the unit is to be installed in before
uncrating the unit, making sure that all possible
hazards the user or equipment may come into have
been addressed.
For Indoor Use Only: This unit is designed to
operate indoors, under normal ambient
temperatures of 70_-75_F(21_-24_C). The freezer
has successfully performed in high ambient
temperatures of 104_(40_C) at reduced capacities.
This unit must NOT beinstalledinanarea
where a water jet or hose can be used. NEVER use
a water jet or hose to rinse or clean the unit. Failure
to follow this instruction may result in electrocution.
This unit must be installed on a level surface
to avoid the hazard of tipping. Extreme care should
be taken in moving this equipment for any reason.
Two or more persons are required to safely move
this unit. Failure to comply may result in personal
injury or equipment damage.
Uncrate the unit and inspect it for damage. Report
any damage to your Taylor Distributor.
This piece of equipment is made in the USA and has
USA sizes of hardware. All metric conversions are
approximate and vary in size.
Air Cooled Units
DO NOT obstruct air intake and discharge openings:
Air cooled units require a minimum of 3” (76 mm) of
air space both sides, 3” (76 mm) at the rear, and 12”
(305 mm) on the top of the unit. Minimum air
clearances must be met to assure adequate air flow
for optimum performance.

2 Model C302 NPRTo the Installer
090805
Water Cooled Refrigeration Units
(Water Cooled Units Only)
On the back of the unit, two additional 3/8” (9.5 mm)
F.P.T. water connections for condenser inlet and
outlet have been provided for easy hook-up. 3/8”
(9.5 mm) inside diameter water lines should be
connected to the machine. Flexible lines are
recommended if local codes permit. Failure to use
adequate size water lines may cause the unit to go
on high head pressure and shut down.
Depending on local water conditions, it may be
advisable to install a water strainer to prevent
foreign substances from clogging the automatic
water valve.
DO NOT INSTALL A HAND SHUT-OFF VALVE ON
THE “OUT” LINE! Water cooled units are counter
flow and the water should flow in this order: First
through the automatic water valve. Second, through
the inlet located at the bottom of the condenser.
Third, through the outlet fitting located at the top of
the condenser toanopentrapdrain.
IMPORTANT: Water pressures are pre-set at the
factory. Do not adjust the water pressure.
Improper water adjustments may cause operation
discrepancies.
Water Connections
An adequate cold water supply must be provided
with a hand shut-off valve. On the back of the unit, a
3/8” (9.5 mm) male flare water connection has been
provided for easy hook-up. A flexible line is
recommended, if local codes permit. A minimum of
25 psi water pressure is required to avoid having the
unit cut out the low water pressure switch. A booster
pump must be provided if this pressure is not
available.
Note: Water lines beyond 200 ft. (61 m) require 1/2”
(13 mm) water lines.
INSTALL POTABLE WATER CONNECTION
WITH ADEQUATE BACK-FLOW
PROTECTION TO COMPLY WITH
APPLICABLE NATIONAL, STATE AND
LOCAL CODES.
It is always a good practice to have a filter system to
improve the quality of the water and to avoid
clogging the operating components.
IMPORTANT: The water filter (064422-SER) must
be thoroughly flushed with water before connecting it
to the machine. This removes any loose particles
present from the manufacture of the filter that could
clog the flow control. To flush the filter, connect the
inlet end of the filter to the water supply. Position the
outlet end of the filter over an empty pail. Open the
water supply. Allow water to flow through the filter
until the water exiting the filter is clear. Close the
water supply. Attach the outlet end of the filter to the
machine. Reopen the water supply.
Figure 1

3
Model C302 NPR To the Installer
081114
Electrical Connections
Each freezer requires one power supply. Check the
data label on the freezer for fuse, circuit ampacity
and electrical specifications. Refer to the wiring
diagram provided inside of the control box, for
proper power connections.
In the United States, this equipment is intended to
be installed in accordance with the National
Electrical Code (NEC), ANSI/NFPA 70-1987. In all
other areas of the world, equipment should be
installed in accordance with the existing local codes.
Please contact your local authorities.
The purpose of the NEC code is the practical
safeguarding of persons and property from hazards
arising from the use of electricity. This code contains
provisions considered necessary for safety.
Compliance therewith and proper maintenance will
result in an installation essentially free from hazard!
The NEC is a United States regulatory agency.
International users must follow local electrical codes.
FOLLOW YOUR LOCAL ELECTRICAL CODES!
CAUTION: THIS EQUIPMENT MUST BE
PROPERLY GROUNDED! FAILURE TO DO SO
CAN RESULT IN SEVERE PERSONAL INJURY
FROM ELECTRICAL SHOCK!
This unit is provided with an equipotential
grounding lug that is to be properly attached to the
rear of the frame by the authorized installer. The
installation location is marked by the equipotential
bonding symbol (5021 of IEC 60417-1) on both the
removable panel and the equipments frame.
SStationary appliances which are not
equipped with a power cord and a plug or
another device to disconnect the appliance
from the power source must have an all-pole
disconnecting device with a contact gap of
at least 3mm installed in the external
installation.
SAppliances that are permanently connected
to fixed wiring and for which leakage
currents may exceed 10 mA, particularly
when disconnected or not used for long
periods, or during initial installation, shall
have protective devices such as a GFI, to
protect against the leakage of current,
installed by the authorized personnel to the
local codes.
SSupply cords used with this unit shall be
oil-resistant, sheathed flexible cable not
lighter than ordinary polychloroprene or
other equivalent synthetic
elastomer-sheathed cord (Code designation
60245 IEC 57) installed with the proper cord
anchorage to relieve conductors from strain,
including twisting, at the terminals and
protect the insulation of the conductors from
abrasion.
CAUTION: THIS EQUIPMENT MUST BE
PROPERLY GROUNDED! FAILURE TO DO SO
CAN RESULT IN SEVERE PERSONAL INJURY
FROM ELECTRICAL SHOCK!
Beater Rotation
Beater rotation must be clockwise as viewed
looking into the freezing cylinder.
The following procedures should be performed by a
trained service technician:
To correct rotation on a single-phase unit, change
the leads inside the beater motor. Follow the
diagram printed on the motor. (Note: Three-phase
units have single-phase motors.)

4 Model C302 NPRTo the Installer
081114
Refrigerant
In consideration of our environment, Taylor
proudly uses only earth friendly HFC refrigerants.
The HFC refrigerant used in this unit is R404A. This
refrigerant is generally considered non-toxic and
non-flammable, with an Ozone Depleting Potential
(ODP) of zero (0).
However, any gas under pressure is potentially
hazardous and must be handled with caution.
NEVER fill any refrigerant cylinder completely with
liquid. Filling the cylinder to approximately 80% will
allow for normal expansion.
Refrigerant liquid sprayed onto the skin may
cause serious damage to tissue. Keep eyes and skin
protected. If refrigerant burns should occur, flush
immediately with cold water. If burns are severe,
apply ice packs and contact a physician
immediately.
Taylor reminds technicians to be cautious of
government laws regarding refrigerant recovery,
recycling, and reclaiming systems. If you have any
questions regarding these laws, please contact the
factory Service Department.
WARNING: R404A refrigerant used in
conjunction with polyolester oils is extremely
moisture absorbent. When opening a refrigeration
system, the maximum time the system is open must
not exceed 15 minutes. Cap all open tubing to
prevent humid air or water from being absorbed by
the oil.

5
Model C302 NPR To the Operator
081114
Section 2 To the Operator
The freezer you have purchased has been carefully
engineered and manufactured to give you
dependable operation.
The Model C302NP, when properly operated and
cared for, will produce a consistent quality product.
Like all mechanical products, this machine will
require cleaning and scheduled maintenance. A
minimum amount of care and attention is necessary
if the operating procedures outlined in this manual
are followed closely.
This Operator's Manual should be read before
operating or performing any maintenance on your
equipment.
Your freezer will NOT eventually compensate and
correct for any errors during the set-up or filling
operations. Thus, the initial assembly and priming
procedures are of extreme importance. It is strongly
recommended that all personnel responsible for the
equipment's operation study these procedures
together in order to be properly trained and to make
sure that no misunderstandings exist.
In the event you should require technical assistance,
please contact your local authorized Taylor
Distributor for service.
Note: Warrantyisvalidonlyiftheparts areauthorized
Taylor parts, purchased from an authorized Taylor
Distributor, and the required service work is provided
by an authorized Taylor service technician. Taylor
reserves the right to deny warranty claims on
equipment orpartsifnon-approvedpartsorrefrigerant
were installed in the machine, system modifications
were performed beyond factory recommendations, or
it is determined that the failure was caused byneglect
or abuse.
Note: Constant research results in steady
improvements; therefore, information in this
manual is subject to change without notice.
If the crossed out wheeled bin symbol is
affixed to this product, it signifies that this product is
compliant with the EU Directive as well as other
similar legislation in effect after August 13, 2005.
Therefore, it must be collected separately after its
use is completed, and cannot be disposed as
unsorted municipal waste.
The user is responsible for returning the product to
the appropriate collection facility, as specified by
your local code.
For additional information regarding applicable local
laws, please contact the municipal facility and/or
local distributor.
Compressor Warranty Disclaimer
The refrigeration compressor(s) on this machine are
warranted for the term indicated on the warranty
card accompanying this machine. However, due to
the Montreal Protocol and the U.S. Clean Air Act
Amendments of 1990, many new refrigerants are
being tested and developed, thus seeking their way
into the service industry. Some of these new
refrigerants are being advertised as drop-in
replacements for numerous applications. It should
be noted that, in the event of ordinary service to this
machine's refrigeration system, only the refrigerant
specified on the affixed data label should be
used. The unauthorized use of alternate refrigerants
will void your compressor warranty. It will be the
owner's responsibility to make this fact known to any
technician he employs.
It should also be noted that Taylor does not warrant
the refrigerant used in its equipment. For example, if
the refrigerant is lost during the course of ordinary
service to this machine, Taylor has no obligation to
either supply or provide its replacement either at
billable or unbillable terms. Taylor does have the
obligation to recommend a suitable replacement if
the original refrigerant is banned, obsoleted, or no
longer available during the five year warranty of the
compressor.
Taylor will continue to monitor the industry and test
new alternates as they are being developed. Should
a new alternate prove, through our testing, that it
would be accepted as a drop-in replacement, then
the above disclaimer would become null and void.
To find out the current status of an alternate
refrigerant as it relates to your compressor warranty,
call the local Taylor Distributor or the Taylor Factory.
Be prepared to provide the Model/Serial Number of
the unit in question.

6 Model C302 NPRSafety
081114
Section 3 Safety
We at Taylor are concerned about the safety of the
operator when he or she comes in contact with the
freezer and its parts. Taylor has gone to extreme
efforts to design and manufacture built-in safety
features to protect both you and the service
technician. As an example, warning labels have
been attached to the freezer to further point out
safety precautions to the operator.
IMPORTANT - Failure to adhere to the
following safety precautions may result in
severe personal injury or death. Failure to
comply with these warnings may damage the
machine and its components. Component
damage will result in part replacement expense
and service repair expense.
DO NOT operate the freezer without
reading this Operator Manual. Failure to follow this
instruction may result in equipment damage, poor
freezer performance, health hazards, or personal
injury.
This unit is provided with an equipotential
grounding lug that is to be properly attached to the
rear of the frame by the authorized installer. The
installation location is marked by the equipotential
bonding symbol (5021 of IEC 60417-1) on both the
removable panel and the equipments frame.
DO NOT use a water jet to clean or rinse
the freezer. Failure to follow these instructions may
result in serious electrical shock.
SDO NOT operate the freezer unless it is
properly grounded.
SDO NOT operate the freezer with larger
fuses than specified on the freezer data
label.
SDO NOT attempt any repairs unless the
main power supply to the freezer has been
disconnected. Contact your local authorized
Taylor Distributor for service.
SStationary appliances which are not
equipped with a power cord and a plug or
another device to disconnect the appliance
from the power source must have an all-pole
disconnecting device with a contact gap of
at least 3mm installed in the external
installation.
SAppliances that are permanently connected
to fixed wiring and for which leakage
currents may exceed 10 mA, particularly
when disconnected or not used for long
periods, or during initial installation, shall
have protective devices such as a GFI, to
protect against the leakage of current,
installed by the authorized personnel to the
local codes.
SSupply cords used with this unit shall be
oil-resistant, sheathed flexible cable not
lighter than ordinary polychloroprene or
other equivalent synthetic
elastomer-sheathed cord (Code designation
60245 IEC 57) installed with the proper cord
anchorage to relieve conductors from strain,
including twisting, at the terminals and
protect the insulation of the conductors from
abrasion.
Failure to follow these instructions may result in
electrocution. Contact your local authorized Taylor
Distributor for service.
SDO NOT allow untrained personnel to
operate this machine.
SDO NOT operate the freezer unless all
service panels and access doors are
restrained with screws.
SDO NOT remove any internal operating
parts (example: freezer door, beater,
scraper blades, etc.) unless all control
switches are in the OFF position.
Failure to follow these instructions may result in
severe personal injury from hazardous moving parts.

7
Model C302 NPR Safety
081114
CAUTION: This unit is pressurized when
in operation. The control switch must be in the OFF
position until the unit is completely assembled. No
part should ever be removed from the machine while
it is in operation. No parts should be removed until
the control switch has been turned to the OFF
position. Failure to follow this instruction may result
in severe personal injury from hazardous moving
parts or from the impact of propelled parts.
This unit has many sharp edges that can
cause severe injuries.
SDO NOT put objects or fingers in the door
spout. This may contaminate the product
and cause severe personal injury from blade
contact.
SUSE EXTREME CAUTION when removing
the beater asssembly. The scraper blades
are very sharp.
This freezer must be placed on a level
surface. Failure to comply may result in personal
injury or equipment damage.
Cleaning and sanitizing schedules are
governed by your state or local regulatory agencies
and must be followed accordingly. Please refer to
the cleaning section of this manual for the proper
procedure to clean this unit.
DO NOT obstruct air intake and discharge openings:
Air cooled units require a minimum of 3” (76 mm) of
air space on both sides, 3” (76 mm) at the rear, and
12” (305 mm) on the top of the unit. Minimum air
clearances must be met to assure adequate air flow
for optimum performance.
For Indoor Use Only: This unit is designed to
operate indoors, under normal ambient
temperatures of 70_-75_F(21_-24_C). The
freezer has successfully performed in high ambient
temperatures of 104_(40_C) at reduced capacities.
NOISE LEVEL: Airborne noise emission does not
exceed 78 dB(A) when measured at a distance of
1.0 meter from the surface of the machine and at a
height of 1.6 meters from the floor.

8 Model C302 NPROperator Parts Identification
Section 4 Operator Parts Identification
2
3
8
1
9
10
4
7
6
11
5
12
13
Figure 2
ITEM DESCRIPTION PART NO.
1PANEL-SIDE*LEFT 059721
2PANEL-REAR 059657
3PANEL-SIDE*RIGHT 059722
4DISPLAY-LIGHTED 059584-27
5PANEL-FRONT-UPPER 059577
6PANEL-FRONT-SHELL 059576
7PANEL-FRONT-LOWER 059652
ITEM DESCRIPTION PART NO.
8SHELF-DRIP TRAY 059653
9TRAY-DRIP 059654
10 SHIELD-SPLASH 059659
11 SWITCH-ROCKER OFF-ON 059627
12 SCREW-10-32X1/2 SLTD TRUS 037734
13 SCREW-10-32X3/8 UNSL HWH 039381

9
Model C302 NPR Operator Parts Identification
081110
Beater Door Assembly
2
1a
3
4
12
12 5
6
7
8
1b
1c
1d
1e
1i
11
1g
1f
1h
1j
9
10
5
Figure 3
ITEM DESCRIPTION PART NO.
1DOOR A.-SLUSH-SLFCLOSE-
ICE BUSTER (COMPLETE) X57323 (1a-1j)
1a CAP A.-SPRING RETAINER X30591
1b SPRING-COMP.970X.082 030344
1c PIN-VALVE HANDLE 031974
1d VALVE-DRAW *SLUSH*SLFCL 047734-SP
1e O-RING-1”OD X .139W 032504
1f HANDLE A.-DRAW-SLUSH-BLK X47384
1g PLUG-PRIME*STNLS 050405
1h O-RING-.563 OD X .070W-#013 043758
1i DOOR A.-PARTIAL-SLUSH X57324-SER
1j BUSTER-ICE 047735
ITEM DESCRIPTION PART NO.
2GASKET-DOOR 5.109”ID 014030
3BEARING-FRONT 013116
4BEATER A.-7QT-1 PIN X46233
5BLADE-SCRAPER-PLASTIC
9-13/16L 046237
6SHAFT-BEATER 036412
7O-RING-7/8 OD X .139W 025307
8SEAL-DRIVE SHAFT 032560
9ARM-BAFFLE 047729
10 BAFFLE ASSEMBLY X47731
11 NUT-STUD 043666
12 CLIP-SCRAPER BLADE 8.75” 046238

10 Model C302 NPROperator Parts Identification
Accessories
KAY-5
Sanitizer/Cleaner
®
CAUTION
KEEP OUT OF REACH OF CHILDREN
FOR INSTITUTIONAL USE ONLY
1 OZ (28.4 g)
2a
1
2b
2c
2d
5
4
3
048260
048260
R
Figure 4
ITEM DESCRIPTION PART NO.
1PAIL-MIX 10 QT 013163
2a BRUSH-MIX PUMP BODY-3”X7” 023316
2b BRUSH-DOUBLE ENDED 013072
2c BRUSH-REAR BRG 1”DX2“L 013071
ITEM DESCRIPTION PART NO.
2d BRUSH-DRAW VALVE 1-1/2”OD 014753
3KIT A.-TUNE UP X56829
4LUBRICANT-TAYLOR HI PERF 048232
5SANITIZER KAY-5 125 PACKETS 041082
*ITEMS 2a-2d ARE INCLUDED IN BRUSH
A.-PACKAGE, PART NO. X64275

11
Model C302 NPR Important: To the Operator
Section 5 Important: To the Operator
PRIMEAUTO
ALARM
SILENCER
ALARM
SILENCER
OFF BEATER
PRIME
PRIMEAUTO
MENU
MENUOFF BEATER
SELECT
PRIMEAUTO
ALARM
SILENCER
ALARM
SILENCER
OFF BEATER PRIMEAUTO MENUOFF BEATER
SELECT
1
3
4
2
5
Figure 5
ITEM DESCRIPTION
1CONTROL SWITCH - LEFT SIDE
2CONTROL SWITCH - RIGHT SIDE
3KEYPAD
4LIQUID CRYSTAL DISPLAY
5PRODUCT LIGHT
Symbol Definitions
To better communicate in the International arena,
symbols have replaced words on many of our
operator switches, function, and fault indicators.
Your Taylor equipment is designed with these
International symbols.
The following chart identifies the symbol definitions.
=OFF
=ON

12 Model C302 NPRImportant: To the Operator
Control Switches
There are two control switches located at the top left
corner of the upper front panel, behind the
illuminated display. The left switch controls the two
freezing cylinders on the left side of the unit. The
right switch controls the two freezing cylinders on
the right side of the unit. When placed in the ON
position, these control switches allow SLUSHTECH
operation.
Liquid Crystal Displays
There are two Liquid Crystal Displays (LCD's)
located on the upper front panel behind the
illuminated display. The two LCD's display
information for the two freezing cylinders located
directly beneath them. These pairs of freezing
cylinders are each labeled “left” and “right” per LCD.
The LCD's show the current operating mode of the
freezing cylinders. They also indicate whether there
is enough syrup, CO2, and water being supplied to
the freezer. If an error in the machine operation
occurs, a warning tone will sound and the word
“FAULT” will flash on the third line of the display.
Operational Mode Displays
The screens below illustrate the operational mode
information displayed during normal operation. The
two LCD's display information corresponding to the
two freezing cylinders located directly beneath them.
These pairs of freezing cylinders are each labeled
“left” and “right” per LCD.
When the unit is plugged into the wall receptacle
and the control switch is in the ON position, this
screen appears.
SAFETY TIMEOUT
ANY KEY ABORT
This display will remain on the LCD for 60 seconds
unless a key is pressed. If any key is pressed (or 60
seconds passes) then the next screen appears.
OFF MODE OFF
OK SYRUP OK
CO2-OK WATER-OK
Note: Syrup, CO2and water are satisfied.

13
Model C302 NPR Important: To the Operator
Pressing the AUTO (- ->) keys for each freezing
cylinder will display this screen.
AUTO MODE AUTO
OK SYRUP OK
CO2-OK WATER-OK
Line 1 indicates the operating mode for each
freezing cylinder.
Line 2 indicates the status of the syrup systems in
each freezing cylinder. As long as syrup is available,
the word “OK” will appear on the LCD. When the
syrup supply is insufficient, the word “OUT” will flash
on the LCD. The same rules apply to the fourth line
which indicates the status of the CO2and the H2O.
The third line of this display is a fault indicator. If an
error in machine operation occurs, the word “FAULT
will be displayed on the LCD.
BEATER MODE BEATER
OUT SYRUP OUT
- -FAULT- - - -FAULT- -
CO2-OUT H2O-OUT
Note: Repeat all information and programming
procedures for each individual control from the left to
the right.
Operator Menu Display
The OPERATOR MENU is used to enter into the
operating screens. To access the OPERATOR
MENU, simply press the MENU (SEL) key. The
cursor will flash under the letter “A”, indicating that
this is screen A. To select a different screen, use the
AUTO (- ->) and OFF (<- -) keys to move the cursor
to the desired screen selection and press the MENU
(SEL) key.
OPERATOR MENU
AB C D E F G H I
EXIT MENU
<- - - -> SEL
Operator Menu Timeout
If the display is left in the operator menu or any of
the operator menu selections, except for Current
Conditions, the display will return to the system
mode screen 60 seconds after the last keypress.
The Current Conditions screen will be displayed until
manually changed.
Finding Current Fault Conditions
Screen B is FAULT DESCRIPTION. The fault
description will indicate if there is a fault in one of the
freezing cylinders. When the actual fault is
corrected, the warning tone will stop. Only “BRL
NOT COOLING” requires pressing the OFF (<- -)
key to clear the fault message and the warning tone.
Fault Messages
Beater Overload Beater is out on overload.
Chk Refrig Sys Psi Compressor is out on high
head pressure.
Thermistor Short Shorted thermistor probe.
Thermistor Open Open thermistor probe.
H2O Pressure Low Water pressure is low.
CO2 Pressure Low CO2pressure is low.
Syrup Pressure Low Syrup is no longer present.
BRLTemp2High Freezing cylinder
temperature is above 120°F
(49°C).
BRL Not Cooling Freezing cylinder is not
cooling after 5 minutes.
No Fault Found No fault conditions are
apparent.

14 Model C302 NPRImportant: To the Operator
The following are explanations of the possible faults
and the display screens. Lines 2 and 3 indicate the
faults found in freezing cylinders 1 and 2
respectively.
1. NO FAULT FOUND - No fault conditions are
apparent.
FAULT DESCRIPTION
L: NO FAULT FOUND
R: NO FAULT FOUND
CLR + + + SEL
2. BEATER OVERLOAD - Beater motor is out on
overload. When this fault occurs, the affected
side of the machine automatically turns off. The
fault clears when the condition is corrected.
FAULT DESCRIPTION
L: BEATER OVERLOAD
R: BEATER OVERLOAD
CLR + + + SEL
3. CHK REFRIG SYS PSI - Compressor is out on
high head pressure. When this fault occurs, the
machine automatically turns off. The fault
clears when the condition is corrected.
FAULT DESCRIPTION
L: CHK REFRIG SYS PSI
R: CHK REFRIG SYS PSI
CLR + + + SEL
4. THERMISTOR SHORT - One or both of the
barrel (freezing cylinder) thermistor probes are
faulty.
FAULT DESCRIPTION
L: THERMISTOR SHORT
R: NO FAULT FOUND
CLR + + + SEL
5. THERMISTOR OPEN - One or both of the
barrel (freezing cylinder) thermistor probes are
faulty.
FAULT DESCRIPTION
L: THERMISTOR OPEN
R: NO FAULT FOUND
CLR + + + SEL
6. SYRUP PRESS LOW - When the syrup out
indicator displays a lack of syrup, the barrel will
enter a HOLD mode. At this time, no
refrigeration or product flow from the flow
control will be allowed. Only the beater will
operate. When the syrup is satisfied the barrel
will refill the product tank and then
automatically return to the AUTO mode. The
fault message and the warning tone will clear.
(See “Syrup Out Indicator” on page 18.)
FAULT DESCRIPTION
L: NO FAULT FOUND
R: SYRUP PRESS LOW
CLR + + + SEL
7. CO2PRESSURE LOW - When the CO2out
indicator displays a lack of CO2, a 60 second
internal timer will start. If the CO2is not
replenished at the end of the 60 seconds, both
freezing cylinders will shut down and this fault
message will appear. Replenish the CO2and
the fault message and warning tone will clear.
FAULT DESCRIPTION
L: CO2 PRESSURE LOW
R: CO2 PRESSURE LOW
CLR + + + SEL
8. H2O PRESSURE LOW - When the water out
indicator displays a lack of water, a 60 second
internal timer will start. If the water is not
replenished at the end of the 60 seconds, all
freezing cylinders will shut down and this fault
message will appear. Replenish the water and
the fault message and warning tone will clear.
FAULT DESCRIPTION
L: H2O PRESSURE LOW
R: H2O PRESSURE LOW
CLR + + + SEL

15
Model C302 NPR Important: To the Operator
9. BRL NOT COOLING - A freezing cylinder
check has been established for the AUTO
mode of operation. If a freezing cylinder enters
the AUTO mode, the control will check product
temperature. After five minutes, it will again
check product temperature. If product
temperature does not drop in that five minute
time span, the freezing cylinder will shut down
and this message will appear on the fault
screen. For this check to be valid, the product
temperature must be above 40_F(4.4_C).
FAULT DESCRIPTION
L: BARREL NOT COOLING
R: NO FAULT FOUND
CLR + + + SEL
10. BRL TEMP 2 HIGH - A maximum allowable
product temperature has been established to
prevent product from excessive heating. If the
product exceeds 120_F(49_C) temperature for
any reason (in any mode of operation), the
entire unit shuts down.
FAULT DESCRIPTION
L: BARREL TEMP 2 HIGH
R: NO FAULT FOUND
CLR + + + SEL
Faults, when corrected, are cleared from the fault
description screen, with the following exception: BRL
NOT COOLING. This fault requires the operator to
press the OFF (<- -) key (when in the FAULT
DESCRIPTION screen) in order for the fault to
discontinue.
To see if there is more than one fault in either
freezing cylinder, press the PRIME (+ + +) key. To
return to the OPERATOR MENU, press the MENU
(SEL) key once. To return to the Main Screen, use
the AUTO (- ->) key to cycle to MENU ITEM A, then
press the MENU (SEL) key.
Screen C is SET CLOCK. Use the AUTO (- ->) and
OFF (<- -) keys to place the cursor under the
element to be set (hours, minutes, month, day, or
year). Use the PRIME (+++) and BEATER (- - -)
keys to increment or decrement the value. Press the
MENU (SEL) key to advance to the Daylight Saving
Time screen.
Note: The clock is programmed with military time.
SET CLOCK
14:30 10/25/06
<- - - -> + + + - - - SEL
This screen will appear if an invalid date is entered.
(example: If the date entered exceeds the days of
that month.)
SET CLOCK
14:30 02/31/07
INVALID DATE SEL
This screen allows the Daylight Saving Time
options. If the Daylight Saving Time option is
enabled, then the time will be advanced by one hour
at 2:00 a.m. on the first Sunday in April, and will be
retarded by one hour at 2:00 a.m. on the last
Sunday in October.
DAYLIGHT SAVING TIME
ENABLE DISABLE
<- - - -> SEL
Screen D is MANUAL DEFROST. This screen
allows the operator to manually defrost the left
freezing cylinders under each LCD.
Place the cursor under YES, press the MENU (SEL)
key, and the command will be executed.
MANUAL DEFROST
LEFT SIDE YES NO
<- - - -> SEL

16 Model C302 NPRImportant: To the Operator
Repeat the procedure for the right freezing cylinder
under each LCD.
MANUAL DEFROST
RIGHT SIDE YES NO
<- - - -> SEL
Note: Only one freezing cylinder per LCD may be
placed in the DEFROST mode at a given time.
Attempting to place more than one freezing cylinder
into DEFROST will result in the following screen:
ALREADY IN DEFROST
Press the MENU (SEL) key to return the unit to the
OPERATOR MENU.
Screen E is SYSTEM INFORMATION.Itconsists
of 6 display features.
The first feature indicates the software version.
SYSTEM INFORMATION
C300 CONTROL UVC2
VERSION 1.00 SEL
The second feature indicates the bill of material
number and the serial number.
It also indicates if the unit is equipped with a water
pressure switch.
B.O.M. C30227C000
S/N K0000000
WITH H20 PRESS SW SEL
The third feature indicates the version number of the
language and text.
SYSTEM INFORMATION
LANGUAGE
VERSION 1.09 ENGLISH 446 SEL
The fourth feature will display the Power Saver
Mode, OFF, REST, or STANDBY status.
If the Power Saver Mode is OFF, the following
screen will be displayed.
POWER SAVER MODE
OFF
SEL
If a Power Saver Mode is programmed, one of the
following screens will appear.
POWER SAVER REST
CYCLE 1 SUN 01:00
SUN 08:30
+ + + - - - SEL
POWER SAVER STANDBY
CYCLE 1 SUN 01:00
SUN 08:30
+ + + - - - SEL
The fifth feature will indicate the left side defrost time
and which day(s) the defrost will occur.
DEFROST TIME LEFT
CYCLE 1 ALL 09:00
+ + + - - - SEL
DEFROST TIME LEFT
CYCLE 1 SUN 09:00
<- - - -> + + + - - - SEL