Taylor C723 User manual

SERVICE
MANUAL
Model C723
Soft Serve Freezer
Original Service Instructions
069127-S 10/12/11 (Original Publication)
(Updated 02/05/16)

Table of Contents Model C723
Table of Contents
Section 1: Introduction 1...............................................
Safety 2.............................................................
Model C723 Specifications 4...........................................
Running Specifications 6...............................................
General Installation Instructions 7.......................................
Environmental Notices 10...............................................
Important to the Operator 11............................................
Section 2: Controls, Systems and Operations 15..........................
Universal Control Programming 16.......................................
Freezer Lockout 28....................................................
Timers 31.............................................................
Setting Viscosity 32....................................................
Beater Motor & Belt Removal 33.........................................
Jumper Pin Chart - UVC4 34............................................
C723 Control Overview 35..............................................
C723 UVC4 Update Instructions 36......................................
Refrigeration Schematic 37..............................................
Refrigeration System Components 38....................................
Section 3: Troubleshooting 39...........................................
General Troubleshooting Guide 40.......................................
Electrical Troubleshooting Guide 44......................................
Electrical Troubleshooting Guide 45......................................
Bacteria Troubleshooting 46.............................................
Section 4: Parts 49......................................................
Parts Warranty Explanation 50...........................................
Model C723 Exploded View 52..........................................

Model C723 Table of Contents
Table of Contents - Page 2
Model C723 Operator Parts 54..........................................
Optional Carts 55......................................................
Control A.-Upper - X68824-27 56........................................
Control A.-Lower - X68828-27 57........................................
Box A.-Cap & Relay - X68848-27 58......................................
Door and Beater Assembly 59...........................................
Actuator A.-Draw Switch - X62401 60.....................................
Switch A-Dual Lever - X62400 61........................................
Motor A.-Danfoss Condenser - X68882-27 62.............................
Plate A.-Dec C723 - X68829 63..........................................
Accessories 64........................................................
Brushes 65............................................................
Parts List 68...........................................................
Wiring Diagrams 82....................................................
CAUTION: Information in this manual is intended to be used by Taylor Authorized
Service Technicians only.
Note: Continuing research results in steady improvements; therefore, information
in this manual is subject to change without notice.
Note: Only instructions originating from the factory or its authorized translation
representative(s) are considered to be the original set of instructions.
E2011 Carrier Commercial Refrigeration, Inc. (Original Publication)
(Updated February, 2016)
069127-S
Any unauthorized reproduction, disclosure, or distribution of copies by any person of any portion of this
work may be a violation of Copyright Law of the United States of America and other countries, could result
in the awarding of Statutory Damages of up to $250,000 (17 USC 504) for infringement, and may result
in further civil and criminal penalties.
All rights reserved.
Taylor Company
a division of Carrier Commercial Refrigeration, Inc.
750 N. Blackhawk Blvd.
Rockton, IL 61072

1
Model C723 Introduction
Section 1: Introduction
SSafety
SSpecifications
SRunning Specifications
SGeneral Installation Instructions
SEnvironmental Notices
SImportant to the Operator

2
Introduction Model C723
131028
Safety
We, at Taylor Company, are committed to
manufacturing safe operating and serviceable
equipment. The many built-in safety features that
are part of all Taylor equipment are aimed at
protecting operators and trained service technicians
alike.
This manual is intended exclusively for
Taylor authorized service personnel.
DO NOT attempt to run the equipment
unless you have been properly trained to do so.
CAUTION: THIS EQUIPMENT MUST BE
PROPERLY GROUNDED! Do not operate this
freezer unless it is properly grounded and all service
panels and access doors are restrained with screws.
Failure to do so can result in severe personal injury
from electrical shock!
SDO NOT attempt any repairs unless the
main power supply to the freezer has been
disconnected.
SDO NOT operate the freezer with larger
fuses than specified on the data label.
SStationary appliances which are not
equipped with a power cord and plug or
other device to disconnect the appliance
from the power source, must have an
all-pole disconnecting device with a contact
gap of at least 3 mm 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, not used for long
periods, or during initial installation, shall
have protective devices such as a GFI to
protect against the leakage of current and
be installed by 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.
If the supply cord is damaged, it must be
replaced by an authorized Taylor service
technician in order to avoid a hazard.
SCord Connected Units: Only Taylor
authorized service technicians may install a
plug on this unit.
Failure to follow these instructions may result in
electrocution or damage to the machine.
Note: This unit is provided with an equipotential
grounding lug that is to be properly attached to
either the rear of the frame or the underside of the
base pan near the entry hole for incoming power, 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 equipment's frame, as well as on the diagram.
DO NOT remove the freezer door or any
internal operating parts (examples: 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.

3
Model C723 Introduction
THIS UNIT HAS MANY SHARP EDGES
THAT CAN CAUSE SEVERE INJURIES.
Examples:
Sscraper blades
Scondenser fins
Scup/cone dispenser (if applicable)
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 people are required to safely
move this unit. Failure to comply may result in
personal injury or equipment damage.
This unit must NOT be installed in an area
where a water jet or hose can be used. NEVER use
a water jet or hose to rinse or clean this unit. Using a
water jet or hose on or around this equipment may
result in the electrocution of the user or damage to
the equipment.
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 the Operator Manual for the
proper procedure to clean this unit.
Authorized service personnel must ensure
that the proper PPE (Personal Protective
Equipment) is available and worn when required
during installation and service.

4
Introduction Model C723
130815
Model C723 Specifications
Freezing Cylinder
Two, 2.8 quart (2.7 liter)
Mix Hopper
Two, 14 quart (13.2 liter)
Beater Motor
Two, 1.0 HP
Refrigeration Unit
One, 9,500 BTU/hr. R404A
Separate Hopper Refrigeration (SHR)
One, 400 BTU/hr. R134a
(BTU's may vary, depending on compressor used)
Electrical
One dedicated electrical connection is required. See
the electrical chart for the proper electrical
requirements. The C723 is manufactured to be
permanently connected. Consult your local Taylor
Distributor for cord and receptacle specifications as
local codes allow.
Electrical
Maximum
Fuse Size
Minimum
Circuit
Ampacity
Poles (P)
Wires (W)
208-230/60/1 Air 40 29 2P 3W
208-230/60/1
Water
40 29 2P 3W
208-230/60/3 Air 25 18 3P 4W
208-230/60/3
Water
25 18 3P 4W
220-240/50/1 Air 30 24 2P 3W
380-415/50/3N~
Air
12 9 4P 5W
This unit may be manufactured in other electrical
characteristics. Refer to the local Taylor Distributor
for availability. (For exact electrical information,
always refer to the data label of the unit.)
Air Cooled
The Model C723 air cooled unit requires a minimum
of 6” (152 mm) on the left and right sides and 0” on
the back.
The Model C723 unit equipped with top air discharge
chute directs heated air exhaust upward. The
minimum clearance above the top air discharge
chute is 12” (305 mm), 6”” (152 mm) on the left side,
0” on the right side, and 0” on the back.
Water Cooled
The water inlet and drain connections are located in
the rear panel (3/8” FTP / 9.5 mm).
Dimensions
Width: 23-5/16” (592 mm)
Depth: 33-13/16 (858 mm)
Height: 36-1/2” (927 mm)
Counter Clearance*: - - -
*Designed to rest on a plastic pad directly on
counter top or optional cart.
Approximate Weights
Net: 500 lbs. (227 kgs)
Crated: 559 lbs. (254 kgs)
Volume: 39.2 cu. ft. (1.11 cu. m.)
Optional Carts
There are two optional carts available.
1. C20600-AFB: ADA compliant height cart,
not equipped with a door.
2. C20600-000: Standard height cart with
reversible front door panel and rear panel.
Note: If the door is required on the rear of the
cart instead of the front, the front door panel
and the rear panel can be reversed. To reverse
these panels, remove the five screws on each
panel. Reverse and reinstall the panels, making
sure all screws are reinstalled.
IMPORTANT! For safety purposes, the
freezer must be bolted to the cart using all 4
bolts. Failure to comply could result in personnel
injury and equipment damage.

5
Model C723 Introduction
140401
Model C723 Specifications (Continued)
Model C723 and C20600-000 Cart
Figure 1
Model C723 and C20600-AFB Cart
Figure 2

6
Introduction Model C723
120629
Running Specifications
Pressures/Temperatures
The following are the Taylor recommended settings
for various components within this model. The C723
uses R404A.
Expansion Valve (AXV)
Air Cooled = 16 - 17 psi (110 kPa)
Water Cooled = 16 - 17 psi (110 kPa)
for a normal product of 16° to 18°F (‐8.8° to ‐7.7°C).
Expansion Valve Adjustment (AXV)
Place your gauge on the access valve on the suction
line (located at the compressor).
Figure 3
Adjust the pressure higher or lower by turning the
adjustment screw. Clockwise turns raise the
pressure and counterclockwise turns lower the
pressure.
Make expansion valve adjustments with mix in the
cylinder and only ONE SIDE of the freezer in the
AUTO mode. Be sure to allow adequate time for the
pressure to stabilize.
Note: With both sides in AUTO, it is normal for
pressures to be higher than the tag setting of 16-17
psi.
Low Side (Suction)
Suction pressure equals expansion valve setting.
High Side (Discharge)
High side pressure varies for air cooled units,
depending on the ambient temperature. The
pressures in the following table are based on both
sides of the unit running in the Auto mode.
Ambient Temperature Normal Operating Head
Pressures
F C PSI
70° 21.1° 240 ‐ 270
(1,655 ‐ 1,862 kPa)
80° 26.7° 270 ‐ 300
(1,862 ‐ 2,069 kPa)
90° 32.2° 300 ‐ 340
(2,069 ‐ 2,344 kPa)
100° 37.8° 340 ‐ 380
(2,344 ‐ 2,620 kPa)
Water Valve
On a water cooled unit, the water valve should be
set to maintain a compressor head pressure of 255
PSI (1,758 kPa).
Water Valve Adjustment
Place your gauge on the high side access port of the
compressor. Turning the adjustment stem on the
water valve clockwise will lower the pressure.
Note: Make this adjustment with mix in the freezing
cylinder and the freezer in the AUTO mode. Be sure
to allow adequate time for the pressure to stabilize.

7
Model C723 Introduction
120411
General Installation Instructions
CAUTION: Only trained, authorized service
technicians should install this equipment. Failure to
comply will void the factory warranty.
The following are general installation instructions.
For complete installation details, please see the
checkout card.
ALL WIRING AND PLUMBING MUST
CONFORM TO NATIONAL AND LOCAL CODES.
INSTALL POTABLE WATER
CONNECTION WITH ADEQUATE
BACK-FLOW PROTECTION TO COMPLY
WITH APPLICABLE NATIONAL, STATE,
AND LOCAL CODES.
Site Preparation
Review the area where the unit is to be installed
before uncrating the unit. Make sure all possible
hazards to the user and the equipment have been
addressed.
Clearance: Air Cooled Units
The Model C723 air cooled unit requires a minimum
of 6” (152 mm) on the left and right sides and 0” on
the back.
The Model C723 unit equipped with top air discharge
requires 6” (152 mm) on the left side, 0” on the right
side, and 0” on the back.
DO NOT obstruct air intake and discharge openings.
Failure to allow proper clearance and airflow may
cause poor freezer performance and damage to the
machine.
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_F (40_C) at reduced
capacities.
This unit must NOT be installed in an area
where a water jet or hose can be used. NEVER use
a water jet or hose to rinse or clean this unit. Using a
water jet or hose on or around this equipment may
result in electrocution or equipment damage.
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 people are required to safely
move this unit. Failure to comply may result in
personal injury or equipment damage.
Uncrate the machine. Inspect the unit for damage.
Report any damage to the Taylor factory
immediately.
This piece of equipment is made in the USA and has
USA sizes of hardware. All metric conversions are
approximate and vary in size.
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.
SCord Connected Units: Only Taylor
authorized service personnel may install a
plug on this unit.
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.

8
Introduction Model C723
131028
THIS UNIT HAS MANY SHARP EDGES
THAT CAN CAUSE SEVERE INJURIES.
Examples:
Sscraper blades
Scondenser fins
Scup/cone dispenser (if applicable)
Electrical Connections
In the United States, this equipment is
intended to be installed in accordance with the
National Electrical Code (NEC), ANSI/NFPA
701987. 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.
In all other areas of the world, equipment should be
installed in accordance with the existing local codes.
Please contact your local authorities.
Each unit requires one power supply for each data
label on the unit. Check the data label(s) on the unit
for branch circuit overcurrent protection or fuse,
circuit ampacity, and other electrical specifications.
Refer to the wiring diagram provided inside the
electrical box for proper power connections.
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!
Note: This unit is provided with an equipotential
grounding lug that is to be properly attached to
either the rear of the frame or the underside of the
base pan near the entry hole for incoming power, 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 equipment's frame, as well as on the diagram.
SDO NOT operate the freezer with larger
fuses than specified on the data label.
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 3 mm 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, not used for long
periods, or during initial installation, shall
have protective devices such as a GFI to
protect against the leakage of current and
be installed by 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.
If the supply cord is damaged, it must be
replaced by an authorized Taylor service
technician in order to avoid a hazard.
Failure to follow these instructions may result in
electrocution or equipment damage.

9
Model C723 Introduction
131028
Beater Rotation
Beater rotation must be clockwise as
viewed looking into the freezing cylinder.
Note: The following repairs must be performed by
an authorized Taylor Service Technician.
Disconnect all power to the unit. Failure
to follow this instruction may result in electrocution.
To correct rotation on a threephase unit,
interchange any two incoming power supply lines at
the freezer main terminal block only.
To correct rotation on a singlephase unit, change
the leads inside the beater motor by following the
diagram printed on the motor label.
Water Connections
(Water Cooled Units, Only)
An adequate cold water supply must be provided
with a hand shut-off valve. The water inlet and drain
connections are located on the underside of the
base. These connections are 3/8” FTP. (Refer to the
Model C723 Specifications on page 4.)
Flexible lines are recommended, if local codes
permit. In Europe, hose sets for connection of
appliances to the water mains must comply to the
International IEC 61770 standard.
The water expansion valve setting should be set at
255 PSIG (1758 kPa).
Depending on local water conditions, it may be
advisable to install a water strainer to prevent
foreign substances from clogging the automatic
water valve. There will be only one water “in” and
one water “out” connection.
DO NOT install a hand shut-off valve on the water
“out” line! Water should always flow in this order:
First, through the automatic water valve; second,
through the condenser; and third, through the outlet
fitting to an open trap drain.
A back flow prevention device is
required on the incoming water connection side.
Please refer to the applicable National, State, and
local codes for determining the proper configuration.
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.
Use only R404A refrigerant that conforms
to the AHRI standard 700 specification. The use of
any other refrigerant may expose users and
operators to unexpected safety hazards.
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.

10
Introduction Model C723
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 owners'
responsibility to make this fact known to any
technicians they employ.
It should 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, call the
local Taylor Distributor or the Taylor Factory. Be
prepared to provide the model/serial number of the
unit in question.
Environmental Notices
______________________________
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.
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.
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.

11
Model C723 Introduction
140519
Important to the Operator
Model C723
Figure 4
ITEM DESCRIPTION
1POWER SWITCH
2LIQUID CRYSTAL DISPLAY
3 KEYPADS
4MIX OUT INDICATOR
5STANDBY KEY
6MIX LOW INDICATOR
ITEM DESCRIPTION
7SELECT KEY
8SERVICE MENU KEY
9BRUSH CLEAN COUNTER
10 ARROW KEYS
11 SYRUP HEATER KEY (INACTIVE)
*12 DECAL-REAR MIX LIGHTS
*FACTORY INSTALLED OPTION

12
Introduction Model C723
Symbol Definitions
To better communicate in the International arena,
symbols have replaced the 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.
= SELECT
= ON
= OFF
= UP ARROW
= DOWN ARROW
= AUTO
= WASH
= MIX LOW
= MIX OUT
= MENU DISPLAY
= STANDBY
Power Switch
When placed in the ON position, the power switch
allows control panel operation.
Fluorescent Display
The fluorescent display is located on the front
control panel. During normal operation, the display is
blank. The display is used to show menu options
and notifies the operator if a fault is detected. On
International models, the display will indicate the
temperature of the mix in the hopper.
Indicator Lights
MIX LOW - When the MIX LOW symbol is
illuminated, the mix hopper has a low supply of mix
and should be refilled as soon as possible.
MIX OUT - When the MIX OUT symbol is
illuminated, the mix hopper has been almost
completely exhausted and has an insufficient supply
of mix to operate the freezer. At this time, the AUTO
mode is locked out and the freezer will be placed in
the STANDBY mode. To initiate the refrigeration
system, add mix to the mix hopper and touch the
AUTO symbol . The freezer will automatically
begin operation.
Standby Symbol
During long “No Sale” periods, the unit can be
placed in the Standby mode. This maintains product
temperatures below 40°F (4.4°C) in both the hopper
and the freezing cylinder, and helps prevent
overbeating and product breakdown.
To activate Standby, select the STANDBY key or
enter the access code for the Manager Menu and
select the Standby Mode option (see pages 17 and
20). The STANDBY symbol will illuminate,
indicating the Standby feature has been activated.
Using clean and sanitized hands, remove the air
orifice. Lubricate the o-rings located on the end of
the feed tube without the hole. Place that end of the
tube into the mix inlet hole.
Note: To resume normal operation, press the
AUTO symbol . When the unit cycles off, the
product in the freezing cylinder will be at serving
viscosity. Using clean and sanitized hands, turn the
feed tube over and place the end of the tube with
the hole into the mix inlet hole. Install the air orifice.

13
Model C723 Introduction
Wash Symbol
The WASH symbol will illuminate when it is
touched. This indicates beater motor operation. The
STANDBY or AUTO modes must be cancelled first
to activate the WASH mode.
Auto Symbol
The AUTO symbol will illuminate when it is
touched. This indicates that the refrigeration system
has been activated. In the AUTO mode, the WASH
or STANDBY functions are automatically cancelled.
Note: An indicating light and an audible tone will
sound whenever a mode of operation has been
selected. To cancel any function, touch the key
again. The light and the mode of operation will shut
off.
Reset Mechanism
The reset buttons are located in the left side panel of
the machine. They protect the beater motors from
an overload condition. Should an overload occur, the
reset mechanism will trip. To properly reset the
freezer, place the power switch in the OFF position.
Press the reset button firmly. Turn the power switch
to the ON position. Touch the WASH symbol and
observe the freezer's performance.
WARNING: Do not use metal objects to
press the reset button. Failure to comply may
result in severe personal injury or death.
If the beater motor is turning properly, touch the
WASH symbol to cancel the cycle. Touch the
AUTO symbol to resume normal operation.
Feed Tube
The feed tube serves two purposes. One end of the
feed tube has a hole in the side of the tube and the
other end does not. The air orifice is used to meter a
certain amount of air into the freezing cylinder. It
maintains overrun and allows enough mix to enter
the freezing cylinder after a draw. (See Figure 5.)
Figure 5
1. Normal Operation
During normal operation, the end of the feed
tube with the hole is placed into the mix inlet
hole. Every time the draw handle is raised, new
mix and air from the hopper flow into the
freezing cylinder. This keeps the freezing
cylinder properly loaded and maintains overrun.
2. Long “No Sale” Periods
During long “No Sale” periods, the unit can be
placed in the Standby mode. This maintains
product temperatures below 40°F (4.4°C) in
both the hopper and the freezing cylinder, and
helps prevent overbeating and product
breakdown.
To activate Standby, select the STANDBY key
or enter the access code for the Manager Menu
and select the Standby Mode option (see
pages 17 and 20). The STANDBY symbol
will illuminate, indicating the Standby feature
has been activated.
Using clean and sanitized hands, remove the
air orifice. Lubricate the o-rings located on the
end of the feed tube without the hole. Place
that end of the tube into the mix inlet hole.
Note: To resume normal operation, press the
AUTO symbol . When the unit cycles off, the
product in the freezing cylinder will be at
serving viscosity. Using clean and sanitized
hands, turn the feed tube over and place the
end of the tube with the hole into the mix inlet
hole. Install the air orifice.

14
Introduction Model C723
Adjustable Draw Handle
This unit features an adjustable draw handle to
provide the best portion control, giving a better,
consistent quality to your product and controlling
costs. The draw handle should be adjusted to
provide a flow rate of 5 to 7-1/2 oz. (142 to 213 g.)
of product by weight per 10 seconds. To INCREASE
the flow rate, tighten the screw. To DECREASE the
flow rate, loosen the screw. (See Figure 6.)
Figure 6

15
Model C723 Controls, Systems and Operations
Section 2:
Controls, Systems and Operations
SUniversal Control Programming
SFreezer Lockout
STimers
SBeater Stir Cycles
SSetting Viscosity
SJumper Pins - UVC4
SControl Overview
SRefrigeration Schematic
SRefrigeration System Components

16
Controls, Systems and Operations Model C723
Universal Control Programming
Operating Screen
Descriptions
______________________________
The fluorescent display located in the center of the
control panel is normally blank during the daily
operation of the machine. The display is activated
when the SEL key or the Manager's Menu is
selected. The display screen will also alert the
operator of specific faults detected by the control.
Power Up Memory (Initializing)
When the machine is powered, the control system
will initialize to perform a system check. The screen
will display “INITIALIZING”. There are four types of
data the system will check: LANGUAGE, SYSTEM
DATA, CONFIG DATA, and LOCKOUT DATA.
If the power switch is on and the system detects
corrupt data during “Initializing.....”, the detected
faults will be displayed for acknowledgement after
the “SAFETY TIMEOUT” display. The faults may be
“CORRUPTED LANGUAGE,” CONFIG CRC ERR,”
“SYSTEM CRC ERR, “FAULT HISTORY,
”LOCKOUT CRC ERR,” or “POWER FAILURE.”
Once the system has initialized, the number of days
remaining before the next required brush cleaning is
indicated on the control panel and the SAFETY
TIMEOUT screen is displayed with the alarm turned
on. (See Figure 7.)
SAFETY TIMEOUT
ANY KEY ABORTS
Figure 7
The SAFETY TIMEOUT screen will be displayed
with the alarm on for 60 seconds or until any control
key is pressed.
After the safety timeout has been completed and the
power switch is OFF, the following screen is
displayed. (See Figure 8.)
POWER SWITCH OFF
- = - = - = - = - = -
UNIT CLEANED
Figure 8
Power Switch ON
When the power switch is placed in the ON position,
the control panel touch keys become operative. The
fluorescent display will either be blank or will indicate
that the unit has been cleaned. (See Figure 9.)
UNIT CLEANED
Figure 9
Brush Clean Counter
The Brush Clean Counter will display the number of
hours since the freezer was last brush cleaned. After
hour 99, it will change to a letter and a number
(example: A0, A1, ... B0, B1, etc.).