Taylor 345 User manual

OPERATOR’S 
MANUAL
Model 345, 346, 349, & 355
Slush Freezers
06/19/01 (Original Publication)
(Updated 2/4/2019)
Original Operating Instructions
039710-M

Complete this page for quick reference when service is required:
Taylor distributor: __________________________________________________________
Address: _________________________________________________________________
Phone: __________________________________________________________________
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
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.
© 2001 Taylor Company.
(Updated 2/4/2019)
039710-M
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
750 N. Blackhawk Blvd.
Rockton, IL 61072

Table of Contents
039710-M i
Section 1: To the Installer
Installer Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Air-Cooled Machines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Water-Cooled Refrigeration Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Water Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Beater Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Initial Freezing Cylinder Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Syrup System Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Section 2: To the Operator
Compressor Warranty Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Section 3: Safety
Section 4: Operator Parts Identification
Section 5: User Interface
Symbol Definitions (Model 349 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Control Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Liquid Crystal Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Operational Mode Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Operator Menu Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Operator Menu Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Finding Current Fault Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Setting the Clock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Manual Defrosting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Current System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Current Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Searching Fault History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Syrup Out Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
CO2 Out Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Water Out Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Audio Alarm Silencer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Product Light. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Sampling Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Daily Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

ii 039710-M
Table of Contents
Section 6: Operating Procedures
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Priming/Brixing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
90 Day Closing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Draining Product from the Freezing Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Brush Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Section 7: Operator Checklist
During Cleaning and Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Troubleshooting Bacterial Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Regular Maintenance Checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Winter Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Section 8: Troubleshooting Guide
Section 9: Parts Replacement Schedule
Section 10: Limited Warranty on Equipment
Section 11: Limited Warranty on Parts

Section 1
1-1
Models 345, 346, 349, 355
To the Installer
1
To the Installer
The following information has been included in the
manual as safety and regulatory guidelines. For complete
installation instructions, please see the installation
checklist.
Installer Safety
IMPORTANT! In all areas of the world, the
machine 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®machines.
• Only authorized Taylor service personnel should
perform installation, maintenance, and repairs
on Taylor machines.
• Authorized 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.
• Authorized service personnel must ensure that
the proper personal protective equipment (PPE)
is available and worn when required during
installation and service.
•Authorized service personnel must remove all
metal jewelry, rings, and watches before
working on electrical equipment.
DANGER! The main power supply(s) to the
machine must be disconnected prior to performing any
installation, maintenance, or 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 machine.
Note: All repairs must be performed by an authorized
Taylor service technician.
WARNING! This machine has many sharp
edges that can cause severe injuries.
Site Preparation
Review the area the machine is to be installed in before
uncrating the machine, making sure that all possible
hazards the user or machine may come into have been
addressed.
WARNING! Only install this machine in a
location where its use and maintenance is restricted to
trained personnel. Failure to comply may result in
personal injury.
Air-Cooled Machines
Air-cooled machines require 6 in. (152 mm) minimum air
space around all sides of the freezer to allow for
adequate air flow across the condenser(s). Failure to
allow adequate clearance can reduce the refrigeration
capacity of the freezer and possibly cause permanent
damage to the compressor.
For Indoor Use Only: This machine is designed to
operate indoors, under normal ambient temperatures of
70°F to 75°F (21°C to 24°C). The freezer has
successfully performed in high ambient temperatures of
104°F (40°C) at reduced capacities.
WARNING! This machine 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
the machine. Failure to follow this instruction may result
in electrocution.
!
!

1-2
TO THE INSTALLER
Models 345, 346, 349, 355 To the Installer
1
CAUTION! This machine must be installed on
a level surface to avoid the hazard of tipping. Extreme
care should be taken in moving this machine for any
reason. Two or more persons are required to safely move
this machine. Failure to comply may result in personal
injury or damage to the machine.
The authorized installer should inspect the machine for
damage and promptly report any damage to the local
authorized Taylor distributor.
This machine is made using USA sizes of hardware. All
metric conversions are approximate and vary in size.
Water-Cooled Refrigeration Machines
(Water-Cooled Machines Only)
Failure to use adequately sized water lines may cause
the machine to go off 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.
There are two water-in connections and one water-out
connection. Do not install a hand shutoff 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.
Important! Water pressures are pre-set at the factory.
Do not adjust the water. Improper water adjustments
may cause operation discrepancies.
IMPORTANT! A backflow prevention device is
required on the incoming water connection side. Please
see the applicable national, state, and local codes for
determining the proper configuration.
Water Connections
An adequate cold water supply must be provided with a
hand shutoff valve. On the back of the machine, a 3/8 in.
(9.5 mm) M.F.L. 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 machine 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 in. (13 mm) water lines.
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 carbon particles 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 1-1
!
!
INSTALL POTABLE WATER CONNECTION
WITH ADEQUATE BACKFLOW
PROTECTION TO COMPLY WITH
APPLICABLE FEDERAL, STATE AND
LOCAL CODES.
064422

TO THE INSTALLER
1-3
Models 345, 346, 349, 355
To the Installer
1
Electrical Connections
In the United States, this machine is intended to be
installed in accordance with the National Electrical Code
(NEC), ANSI/NFPA 70-1987. The purpose of the NEC 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. In all other
areas of the world, machines should be installed in
accordance with the existing local codes. Please contact
your local authorities.
Each freezer requires one power supply. Check the data
label on the freezer for branch circuit overcurrent
protection or fuse, circuit ampacity, and electrical
specifications. See the wiring diagram provided inside
the control box for proper power connections.
WARNING! This machine must be properly
grounded. Failure to do so can result in severe personal
injury from electrical shock.
WARNING! DO NOT operate this freezer with
larger fuses than specified on the unit data label. Failure
to follow this instruction may result in electrocution or
damage to the machine.
IMPORTANT! An equipotential grounding lug is
provided with this machine. Some countries require the
grounding lug 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
machine's frame.
IMPORTANT!
• Stationary machines which are not equipped
with a power cord and a plug or another device
to disconnect the machine from the power
source must have an all-pole disconnecting
device with a contact gap of at least 0.125 in. (3
mm) installed in the external installation.
• Machines 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 to
protect against the leakage of current, such as a
GFI, installed by the authorized personnel to the
local codes.
• Supply cords used with this machine 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.
Beater Rotation
NOTICE! Beater rotation must be clockwise as
viewed looking into the freezing cylinder.
To correct the rotation on a three-phase machine,
interchange any two incoming power supply lines at the
machine main terminal block only. To correct rotation on
a single-phase machine, exchange leads inside the
beater motor. (Follow the diagram printed on the motor.)
Electrical connections are made directly to the terminal
block provided in the main control box located behind the
service panel.
It is recommended that beater rotation adjustment be
performed by an authorized Taylor service technician.
!
FOLLOW YOUR LOCAL ELECTRICAL CODES.

1-4
TO THE INSTALLER
Models 345, 346, 349, 355 To the Installer
1
Note: The following procedures must be performed by
an authorized Taylor service technician.
Initial Freezing Cylinder Cleaning
Due to the types of products used in FCB equipment, it is
imperative that the freezing cylinder and the inlet tube be
thoroughly brush-cleaned, rinsed, and sanitized before
running any product.
Prepare a cleaning solution, using 2 oz. of liquid
detergent in 2 gal. of warm water. Using this solution,
brush-clean the freezing cylinder and the inlet tube.
Rinse the freezing cylinder and the inlet tube with clean
water and then sanitize, using the sanitizing procedures
outlined in this Operator Manual, starting on page 6-6.
Refrigerant
CAUTION! This equipment contains
fluorinated greenhouse gases (F-Gas) to provide
refrigeration using a hermetically sealed circuit or within
foam insulation. This unit's type of gas, quantity, Global
Warming Potential (GWP) and CO2 tonnes equivalent
information are recorded on the unit's data-label. The
refrigerant used is generally considered non-toxic and
non-flammable. 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
CAUTION! Use only approved refrigerant
listed on the unit's data label or authorized through a
manufacturer's technical bulletin. The use of any other
refrigerant may expose users and operators to
unexpected safety hazards.
IMPORTANT! Refrigerants and their
associated lubricants may be 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.
WARNING! Refrigerant liquid sprayed onto the
skin may cause serious damage to tissue. Keep eyes
and skin protected. If refrigerant burns should occur,
flush them immediately with cold water. If burns are
severe, apply ice packs and contact a physician
immediately.
NOTICE! Taylor reminds technicians to be
aware of and in compliance with local government laws
regarding refrigerant recovery, recycling, and reclaiming
systems. For information regarding applicable local laws,
please contact your local authorized Taylor distributor.
Syrup System Connections
1. Water pipe connections and fixtures directly
connected to a potable water supply shall be sized,
installed, and maintained according to federal, state,
and local laws.
2. Hook up the cold water supply to the freezer to
supply water to the carbonator. A minimum of 21 psi
(1.45 bar) of water pressure is required at the low-
pressure switch. The low-pressure switch will cause
the entire freezer to shut down if the water pressure
drops below 7 psi (0.483 bar) for longer than 1
minute.
The water regulator should be set at 35 PSI 
(2.41 bar). When the power switch is turned on the
water pump will immediately activate to maintain
water pressure.
!
!

TO THE INSTALLER
1-5
Models 345, 346, 349, 355
To the Installer
1
3. For Electrical Hookup Specifications:
• One power cord.
• Refer to the data label.
• Make sure all control switches on the front panel
are in the OFF position.
• The freezer must be properly grounded.
4. A harness with three Nylobrade® tubes feeds
through the base pan and exits the rear of the
freezer.
Note: The Model 355 is equipped with four tubes.
a. Connect the CO2 line to the CO2 regulator that is
closest to the CO2 tank (primary regulator). This
line will supply CO2 to the freezer.
Figure 1-2
b. Connect the #1 line to the syrup tank for the left
side of the freezer as viewed from the front of the
machine. This line will supply syrup to the left
syrup sentry.
Note: For Bag-in-Box (BIB) machines, connect the
#1 line to the Bag-in-Box instead of the syrup tank.
Figure 1-3
c. Connect the #2 line to the syrup tank (or the 
Bag-in-Box) for the right side of the freezer. This
line will supply syrup to the right syrup sentry.
d. Connect the #4 line on the Model 355 to the water
regulator on the remote carbonator. This line
monitors the water pressure supplied to the unit.
5. 5.There are two spare CO2 lines provided. Use one
of the spare CO2 lines to connect one end to the
individual regulator (secondary regulator) and the
other end to the first syrup tank. Use the other spare
CO2 line to connect the CO2 to the second syrup
tank.
Figure 1-4
Note: For Bag-in-Box machines, connect the CO2lines
to the Bag-in-Box pumps instead of the syrup tanks.
Figure 1-5
6. Set the primary regulator on the CO2 tank to 90 psi
(6.2 bar).
18026
18033

1-6
TO THE INSTALLER
Models 345, 346, 349, 355 To the Installer
1
.
Figure 1-6
7. Set the secondary regulator on the CO2 tank to 
60 psi (4.1 bar) for the syrup tanks or the BIB pumps
Figure 1-7
8. Turn the cold water supply on.
9. 9.Check for CO2 leaks. This can be done by closing
the valve on the top of the CO2 tank. Watch the high
pressure gauge; it should hold pressure. If it does
not, there is a CO2 leak. Use a soap solution to
locate and repair the leak.
10. For the Bag-in-Box syrup delivery system, connect
the two spare CO2 lines from the secondary regulator
to each Gas In fitting on the pumps. Set secondary
regulator pressure to 60 psi (4.1 bar) depending on
the length of syrup line run to the unit.
Important! Make sure the Bag-in-Box switch is
enabled.
11. The CO2 regulator assembly (primary regulator)
inside the freezer should be set at 60 psi (4.1 bar).
The secondary regulator, located inside the freezer
just behind the primary regulator, can be adjusted
from 20 psi to 25 psi (1.38 bar to 1.72 bar). (The
factory recommendation is 20 psi [1.38 bar].)
Increasing the pressure from 20 psi (1.38 bar) will
increase the overrun. You should always stay within
the 20 psi to 25 psi (1.38 bar to 1.72 bar) range as
the gauge reflects the pressure in the hopper and
barrel. The setting will be determined by the desired
overrun and the syrup used.
12. The CO2 low pressure switch requires at least 
74 psi (5.1 bar) before the freezer will start. It is set to
cut out at 60 psi (4.1 bar) and in at 74 psi (5.1 bar).
13. The pressure relief valve on the hopper cover is set
to relieve at 30 psi (2.0 bar) in case of excess
pressure in the hopper.
14. There are check valves in the CO2, syrup, and water
lines to prevent any back flow of soda water, product,
or CO2.
15. The CO2 solenoids which supply CO2 to the hoppers
are wired to provide CO2 in all control settings except
DEFROST and OFF.
18087
90 psi
18088
60 psi