Taylor 772 Installation Manual
OPERATOR’S
MANUAL
Model 702 & 772
Navy Soft Serve Freezers
Original Operating Instructions
051469- M
December, 1998 (Original Publication)
(Updated 12/6/13)
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 F use Size: A
Minimum Wire Ampacity: A
E 1998 Carrier Commercial Refrigeration, Inc.
051469- 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
a division of Carrier Commercial Refrigeration, Inc.
750 N. Blackhawk Blvd.
Rockton, IL 61072
Table of Contents
Section 1 To th e Installer 1............................................
Installer Safety 1........................................................
Site Preparation 1.......................................................
Running Specifications 3.................................................
Section 2 Thermistor Control 5........................................
Section 3 Semi- Assembled Navy Units 8...............................
Disassembly 8..........................................................
Assembly 9............................................................
Semi- Assembled Model 702 Exploded View 11..............................
Section 4 To the Operator 13...........................................
Section 5 Safety 14....................................................
Section 6 Operator Parts Identification 16...............................
Model 702 16............................................................
Model 702 Door Assembly 17.............................................
Model 772 18............................................................
Model 772 Door Assembly 19.............................................
Section 7 Important: To the Operator 20.................................
Indicator Light “Mix Low” 20...............................................
Symbol Definitions 20....................................................
Control Switch 20........................................................
Reset Button 20.........................................................
Thermistor Control 21....................................................
Draw Rate 21............................................................
Optional Features 21.....................................................
Section 8 Operating Procedures 22.....................................
Assembly 22............................................................
Sanitizing 24............................................................
Priming 25..............................................................
Closing Procedure 26....................................................
Draining Product From the Freezing Cylinder 27.............................
Rinsing 27..............................................................
Cleaning 27.............................................................
Disassembly 27..........................................................
Brush Cleaning 28.......................................................
Section 9 Important: Operator Checklist 29..............................
During Cleaning and Sanitizing 29.........................................
Troubleshooting Bacterial Count 29........................................
Regular Maintenance Checks 29...........................................
Winter Storage 30........................................................
Section 10 Troubleshooting Guide 31....................................
Troubleshooting Thermistor Components 34................................
Table of Contents Models 702 & 772
Table of Contents - Page 2
Section 11 Parts Replacement Schedule 35...............................
Section 12 Service Parts Functions 36...................................
Section 13 Limited Warranty on Equipment 37............................
Section 14 Limited Warranty on Parts 39.................................
Section 15 Parts List 42.................................................
Wiring Diagrams 48......................................................
Section 16 Motor Characteristics 52......................................
702 - Motor Characteristics and Performance Data 52........................
702 - Controller Data 53..................................................
702 - Motor Characteristics and Performance Data 54........................
702 - Controller Data 55..................................................
702 - Motor Characteristics and Performance Data 56........................
702 - Controller Data 57..................................................
772 - Motor Characteristics and Performance Data 58........................
772 - Controller Data 59..................................................
772 - Motor Characteristics and Performance Data 60........................
772 - Controller Data 61..................................................
772 - Motor Characteristics and Performance Data 62........................
772 - Controller Data 63..................................................
Section 17 Navy Specifications 64.......................................
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.
E 1998 Carrier Commercial Refrigeration, Inc. (Original Publication)
(Updated December, 2013)
051469- 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
a division of Carrier Commercial Refrigeration, Inc.
750 N. Blackhawk Blvd.
Rockton, IL 61072
Models 702 & 772
Table of Contents
Section 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
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.
S Only authorized Taylor service personnel
should perform installation, maintenance,
and repairs on Taylor equipment.
S 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.
S Authorized service personnel must ensure
that the proper protective equipment (PPE)
is available and worn when required during
installation and service.
S Authorized service personnel must remove
all metal jewelry, rings, and watches before
working on electrical equipment.
The main power supply(s) to the unit 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 unit.
Site Preparation
Review the area where the unit will be installed.
Make sure that all possible hazards to the installer,
user, and the unit 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 unit has
successfully performed in high ambient
temperatures of up to 104°F(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 unit for any reason. Two or
more persons are required to safely move this unit.
Failure to comply may result in personal injury or
damage to the unit.
The authorized installer should inspect the unit for
damage and promptly report any damage to the
local authorized Taylor distributor.
This unit is made using USA sizes of hardware. All
metric conversions are approximate and vary in size.
DO NOT install the machine in an area where
a water jet could be used. Failure to follow this
instruction may result in serious electrical shock.
131206
Models 702 & 772 To the Installer
1
Water Connections
(Water Cooled Units On ly)
An adequate cold water supply must be provided with
a hand shut- off valve. On the underside rear of the
base pan, two 3/8” I.P.S. (for single head units) or two
1/2” I.P.S. (for double head units) water connections
for inlet and outlet have been provided for easy
hook- up. 1/2” inside diameter water lines should be
connected to the machine. (Flexible lines are
recommended, if local codes permit.) 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 for both
single head and double head units. 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
opentrapdrain.
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.
Air Cooled Units
DO NOT obstruct the unit’s air intake and discharge
openings:
Model 702 units require a minimum of 3” (76 mm)
clearance on both sides, and 6” (152 mm) on the back.
Model 772 units require a minimum of 3” (76 mm)
clearance around all sides of the freezer. This is
necessary 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.
Electrical Connections
In the United States, this unit is intended to be
installed in accordance with the current edition of the
National Electrical Code (NEC), ANSI/NFP A 70
which governs the installation of the unit at the local
governmental level.
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, the unit 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 of the
electrical box for proper power connections.
FOLLOW YOUR LOCAL ELECTRICAL CODES!
CAUTION: THIS UNIT MUST BE
PROPERLY GROUNDED! FAILURE TO DO SO
CAN RESULT IN SEVERE PERSONAL INJURY
FROM ELECTRICAL SHOCK!
An equipotential grounding lug is provided with
this unit. Some countries require the grounding lug
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 unit’s frame.
S Stationary 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.
S Appliances 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.
To the Installer
2
Models 702 & 772
S Supply 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.
Running Specifications
Expansion Valve Setting
404A/HP62: 20 to 22 PSI (138 to 152 kPa.) for normal
products at temperatures of 18 to 20_F. ( - 7. 8 t o
-6.7_C.).
Low Side Pressure
Low side pressure = expansion valve setting.
Water Cooled: High side pressure for water cooled
units is determined by the water valve. The water valve
is factory set to maintain a high pressure of 235 PSI
(1,620 kPa.). To adjust the high pressure, place the
gauge on the high side access port. Turn the
adjustment knob on the water valve clockwise to lower
the high side pressure and counterclockwise to raise
the pressure.
The high side pressure switch is factory set at 440 PSI
(3,034kPa) for 404A/HP62. In the event of a water
loss, this switch will sense a rise in pressure and
deactivate the freezer.
Check Out
Once the unit is installed, it is advisable to check the
following controls and mechanical operations of the
freezer and to make any necessary adjustments. If
applicable, repeat these checks for the second
freezing cylinder on double head units.
Controls
To adjust the low side pressure, place the gauge on the
low side suction port at the compressor. With the
compressor running, turn the adjustment knob of the
automatic expansion valve clockwise to raise low side
pressure and counterclockwise to lower pressure.
High Side Pressure
Air Cooled: The following chart indicates normal
operating head pressures at various ambient
temperatures:
Ambient Temperature
F. C. PSI
70_ 21.1_ 240 - 270
80_ 26.7_ 270 - 300
90_ 32.2_ 300 - 340
100_ 37.8_ 340 - 380
Note: This chart applies to units using 502 or 404A
refrigerant.
Normal Operating
Head Pressures
(1,655 - 1,862 kPa.)
(1,862 - 2,069 kPa.)
(2,069 - 2,344 kPa.)
(2,344 - 2,620 kPa.)
Place the control switch in the “AUTO” position. The
main refrigeration system will operate (compressor,
beater motor , and the condenser fan). The dial light
and the mix low indicator will be lit.
Figure 1
If the freezer is water cooled, the automatic water
valve will begin to open and cold water will flow into the
condenser. This will remove heat from the refrigerant.
As the water flows into the open trap drain, it should be
warm to the touch. Place the control switch in the
“OFF” position.
Models 702 & 772 To the Installer
3
Beater Rotation
Beater rotation must be clockwise as viewed
looking into the freezing cylinder.
Beater rotation must be clockwise as viewed looking
into the freezing cylinder.
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, exchange
leads inside the beater motor. (Follow the diagram
printedonthemotor.)
Electrical connections are made directly to the
terminal block provided in the main control box located
behind the upper left side panel for the Model 702, and
behind the service panel for the Model 772.
Note: Electrical connections should be performed by
a trained service technician.
Gear Alig n ment
To prevent costly parts damage and to prevent
excessive mix leakage, the gear unit must be perfectly
aligned. To check gear alignment, insert the drive shaft
through the rear shell bearing and into the gear unit.
Move the drive shaft in and out of the gear unit, using
all positions of the hex end. If any binding of the drive
shaft occurs, the gear unit could be out of alignment.
Inspect the bolts which mount the gear unit. make sure
they are tightened down.
To prevent excessive mix leakage, check the rear shell
bearing. The locking tab should be folded over the nut
to prevent the nut from working loose.
To the Installer
4
Models 702 & 772
Section 2 Thermistor Control
Function
The thermistor control maintains temperature in the
freezing cylinder by monitoring the resistance of the
thermistor probe.
Specifications
Temperature Differential: cut in = 2_F. (1. 1 _C.)
above cut- out.
Coarse Adjustment Range: 10_ to 30_F. ( - 12_ to
-1_C.).
Fine Adjustment Range:4_F. (2 _C.) total.
Coarse Adjustment Potentiometer: 1/4 turn =
approximately 6_F. (3 _C.).
Input Voltage Supply: 24 VAC.
Thermistor Probe (Part # 038061- BLK)
The resistance value of the thermistor probe
corresponds with the product temperature in the
freezing cylinder. As the product becomes colder, the
probe resistance increases. As the product becomes
warmer, the probe resistance decreases.
Approximate probe resistance readings:
1. 10,000 ohms at room temperature (78_F. /
25_C.).
2. 46.012 ohms at product temperature (20_F. /
-6.6_C.).
Operation
The thermistor probe is positioned in the bulb- well
located at the front of the freezing cylinder. The
thermistor control becomes operational when
powered by the 24 VAC transformer.
When the desired product is achieved (control
set- point) the thermistor control relay opens and
discontinues the power sent to the compressor relay
coil.
When the product in the freezing cylinder reaches 2_F.
(1_C.) above the control set- point, the thermistor relay
closes, sending L1 power to the compressor relay coil.
The refrigeration system will run until the control
set- point is achieved.
Anticipator
The anticipator signals the thermistor control to
activate the refrigeration system whenever product is
drawn. As the draw valve is raised (freezer draw switch
closes), continuity is created between the thermistor
control anticipator terminals. The thermistor control
relay will close within 1 second to start the refrigeration
system.
Upon completing the draw, the thermistor control
recognizes the loss of continuity between the
anticipator terminals, but will continue refrigeration for
at least 25 seconds. This allows for additional blending
and freezing of the warmer mix which has entered the
freezing cylinder. After approximately 25 seconds
have elapsed, the thermistor control returns to normal
operation and cycles off the refrigeration system when
the set- point temperature is achieved.
Models 702 & 772 Thermistor Control
5
Setting Temperature
1. Position the thermistor fine adjustment at
mid- range. This will limit the fine adjustment
temperature range to 2_F. ( 1_C.).
ELECTRICAL SHOCK AREA! USE CAUTION!
2. Turn the coarse adjustment clockwise to the
coldest setting.
3. With the freezer correctly primed, place the
control switch in the “AUTO” position.
4. After the appropriate freezing time, test the
product temperature. When a sample portion
temperature is approximately 1_ above the
desired temperature setting, slowly turn the
coarse adjustment counterclockwise (warmer)
until the refrigeration system cycles off.
5. Allow the refrigeration system to cycle through
at least two “off” cycles. After the unit cycles
off, draw a sample of product and check the
temperature. Readjust the coarse adjustment
as required, but make only small adjustments.
Note: The anticipator automatically activates the
refrigeration system 0 - 1 second after the draw valve
is opened. If several small samples are drawn, the
temperature may drift lower. To accurately set the
control, let the product temperature stabilize by
allowing the thermistor control to cycle the f reezer on
and off by the control set point instead of the
anticipator.
1. Make sure power is being supplied to the
freezer and that all operating switches are in
the correct position.
2. Using a voltmeter, check the voltage supply to
the thermistor control. The control requires 24
volts to operate.
3. Using an ohmmeter, check probe resistance.
(Refer to the thermistor curve chart on page 7
for proper readings.)
If the thermistor relay which deactivates the
compressor will not open, check the following items:
ELECTRICAL SHOCK AREA! USE CAUTION!
1. Make sure the thermistor relay opens when the
freezer control switch is in the “OFF” position.
Service Tips
If a problem arises with the thermistor control
assembly, identify and replace only the faulty
component. For example, if the probe is defective,
replace only the probe.
A varistor must be connected to the thermistor
control’s 24 VAC terminals in order to protect the
control from voltage spikes (varistor part number
X31547).
Fill the bulb- well with automotive antifreeze before
installing the thermistor probe, and be sure the probe
is installed completely into the bottom of the bulb- well.
Note: Lower the probe to the point where the wires
extend from the probe and a resistance is felt. This
indicates the probe is installed completely in the
bottom of the bulb- well.
If the thermistor relay which starts the compressor will
not close, check the following items:
2. Make sure the thermistor probe is connected to
the correct probe terminals.
3. Using an ohmmeter, check the thermistor probe
for proper resistance. (Refer to the thermistor
curve chart on page 7 for proper readings.)
4. Disconnect one wire to an anticipator terminal.
If the thermistor relay opens after
approximately 25 seconds, the problem is in the
anticipator wiring circuit.
When problems such as erratic product quality occur,
it is of utmost importance to determine if the thermistor
components are defective before replacing them.
See page 34 for Troubleshooting Thermistor
Components.
Thermistor Control
6
Models 702 & 772
Thermistor Curve Chart
F. C. KOHM F. C. KOHM F. C. KOHM
-10 - 23.3 118.201 22 -5.5 43.530 54 12.2 17.915
-9 - 22.7 114.394 23 -5.0 42.340 55 12.7 17.451
-8 - 22.2 110.709 24 -4.4 41.136 56 13.3 16.998
-7 - 21.6 107.143 25 -3.8 39.967 57 13.8 16.557
-6 - 21.1 103.692 26 -3.3 38.830 58 14.4 16.128
-5 - 20.5 100.352 27 -2.7 37.727 59 15.0 15.710
-4 - 20.0 97.120 28 -2.2 36.654 60 15.5 15.315
-3 - 19.4 94.085 29 -1.6 35.612 61 16.1 14.929
-2 - 18.8 91.144 30 -1.1 34.599 62 16.6 14.554
-1 - 18.3 88.296 31 -0.5 33.616 63 17.2 14.187
0 - 17.7 85.536 32 0 32.660 64 17.7 13.830
1 - 17.2 82.863 33 0.5 31.760 65 18.3 13.482
2 - 16.6 80.273 34 1.1 30.885 66 18.8 13.143
3 - 16.1 77.765 35 1.6 30.035 67 19.4 12.812
4 - 15.5 75.334 36 2.2 29.207 68 20.0 12.490
5 - 15.0 72.980 37 2.7 28.403 69 20.5 12.185
6 - 14.4 70.627 38 3.3 27.620 70 21.1 11.888
7 - 13.8 68.350 39 3.8 26.859 71 21.6 11.598
8 - 13.3 66.147 40 4.4 26.120 72 22.2 11.315
9 - 12.7 64.014 41 5.0 25.400 73 22.7 11.039
10 - 12.2 61.951 42 5.5 24.721 74 23.3 10.769
11 -11.6 59.953 43 6.1 24.059 75 23.8 10.507
12 -11.1 58.021 44 6.6 23.416 76 24.4 10.250
13 - 10.5 56.150 45 7.2 22.789 77 25.0 10.000
14 - 10.0 54.340 46 7.7 22.180 78 25.5 9.763
15 -9.4 52.854 47 8.3 21.586 79 26.1 9.532
16 -8.8 51.409 48 8.8 21.009 80 26.6 9.306
17 -8.3 50.003 49 9.4 20.447 81 27.2 9.085
18 -7.7 48.636 50 10.0 19.900 82 27.7 8.870
19 -7.2 47.306 51 10.5 19.384 83 28.3 8.659
20 -6.6 46.012 52 11.1 18.881 84 28.8 8.454
21 -6.1 44.754 53 11.6 18.392 85 29.4 8.254
When checking a thermistor probe, first determine the temperature at the probe and find it on this chart, along with
the correct ohmmeter reading. If your ohmmeter reading varies from the correct reading, determine whether the
difference is acceptable. If a probe is faulty, the difference will be great.
Models 702 & 772 Thermistor Control
7
Section 3 Semi- Assembled Navy Units
To disassemble and assemble the Model 702 unit for
installation in a Navy submarine, perform the following
steps. Use the illustrations on page 12 for the
numerical references.
Disassembly
Step 1
Remove the rear panel, both lower side panels, and
the control box cover.
Step 2
Remove the door assembly, the drip pan, the beater
assembly, and the shaft from the front of the unit.
Step 3
Remove the decorative plate from the front of the unit,
then the fasteners from the following: (1) 24V
transformer , (2) draw switch, (3) thermistor board, and
(4) hopper temperature control.
Step 4
Disconnect the mix low light wires, and remove the
thermistor probe and mix hopper temperature probe
from their respective bulb well locations.
Step 5
Using a drill (1/8” to 5/32” bit), remove all (8) hood
rivets.
Step 6
Remove the upper side panels, (remove the rear
screws, then the lower front screws, then swing the
panel out and up to remove the upper front screws).
Step 7
Disconnect the beater motor wires from the right hand
side of the beater motor start relay. Remove the high
pressure cut out wire and blue wire from the beater
motor relay overload. Disconnect the high pressure
cutout wire to the #13 terminal on the compressor
relay and disconnect the blue wire from the
transformer (if applicable).
Step 8
Remove the main condenser fan motor wire and the
orange with white stripe wire from the compressor
relay #14 terminal and remove the splice caps from the
white wires in the control box (save the white jumper
wire). Remove the fan motor ground wire.
Step 9
Remove the splice cap from the Danfoss system white
with black stripe wire and white wire. Disconnect and
remove the control channel wires, the black and gray
wire from mix level sensor, the white with red stripe
wire from the compressor relay coil, and the orange
wire from the beater motor relay coil.
Step 10
For 115 volt units, disconnect the capacitor relay box
assembly wires from the compressor relay, (or on 460
volt units the transformer wires from the beater motor
relay), in the control box. Disconnect the compressor
wires at the compressor.
Step 11
Disconnect the purple mix low probe wire and remove
the control box from the unit.
Step 12
Remove the belts from the pulleys.
Step 13
Remove the two allen screws that secure the gearbox
to the rear shell support. Remove the two screws that
secure the drip tray guide, and the two screws that
secure the auxiliary compressor bracket to the rear
shell support.
Step 14
Remove the two carriage bolts and nuts that secure
the front of the shell to the front panel.
Step 15
Disconnect all 5 sets of refrigeration junction fittings (2
on auxiliary, and 3 on main system). Use two wrenches
and do not allow copper tubing to twist.
Remove discharge line coupling from the bracket on
right side.
Step 16
Fasten the Danfoss dryer/capillary tube assembly to
the shell assembly to protect the capillary tube from
damage.
Step 17
Remove the shell and hood assembly in one piece.
Step 18
Remove the rear corner trim from the frame.
Semi- Assembled Navy Units
8
Models 702 & 772
Step 19
Remove the front panel from the frame.
Step 20
Remove the condenser mounting screws (from the top
of the bracket), remove the fan blade through the right
side, and then remove the condenser, shroud, and
receiver assembly.
Step 21
Remove the main compressor.
Step 22
Remove the fasteners that connect the top of the
frame to the bottom of the frame. Remove the top half
of the frame that includes the Danfoss compressor and
condenser.
Assembly
Step 10
Slide the condenser, shroud and receiver assembly
into place, then install the fan blade before bolting the
condenser in. (Note: The fan blade should be
positioned 1/3 within the shroud and 2/3 out.) Be sure
the fan blade turns freely.
Attach the cap tube to the clips on the side of the
condenser.
Step 11
Connect the compressor discharge coupling to the
bracket on the right side of the shell. Connect all of the
refrigerant couplings. Use two wrenches, and do not
allow the copper tubing to twist. Perform leak check
on both refrigeration systems.
Step 12
Install the belts on the pulleys.
Step 1
Mount the compressor to the base pan.
Step 2
Mount and fasten the upper frame with the auxiliary
system to the lower frame. Fasten the auxiliary
compressor support to the rear shell support.
Step 3
Install the front panel assembly and connect the drip
tray guide to the rear shell support.
Step 4
Install the rear corner trim.
Step 5
Install the shell and hood assembly. Connect the dryer
and cap tube assembly to the Danfoss condenser
assembly. (Be very careful with the cap tube.)
Step 6
Install the two carriage bolts through the front panel
assembly, and place the nuts on the bolts to secure the
shell.
Step 7
Connect the gearbox to the rear shell support with two
allen head screws.
Step 13
Install the control box assembly with two screws.
Step 14
Connect the beater motor wires to the right hand side
of the beater motor start relay. Connect the capacitor
relay box wires to the compressor relay (if applicable)
or the black wires from the transformer to L1 and L2 on
the beater motor relay. Reconnect the compressor
wires at the compressor.
Step 15
Connect one high pressure cut out wire to the #95
terminal on the beater motor overload, and connect
the blue wire from the control channel to the #96
terminal on the beater motor overload. Connect the
other high pressure cutout wire to the #13 terminal on
the compressor relay along with the blue wire from the
transformer (if applicable).
Step 16
Connect one fan wire and orange with white stripe wire
to the compressor relay #14 terminal, and splice the
other fan wire and all white wires, in the control box,
into two bundles using a white jumper wire. Connect
the fan motor ground wire to the back of the box.
Step 8
Tighten the nuts on the carriage bolts, then tighten the
screws that secure the gearbox.
Step 9
Using silicone, seal around the nose cone that
protrudes through the front panel assembly.
Models 702 & 772 Semi- Assembled Navy Units
Step 17
Splice theDanfoss system white with black stripe wire.
Connect the control channel wires: the black and gray
wire to the mix level sensor, the white with red stripe
wire to the compressor relay coil, and the orange wire
to the beater motor relay coil.
9
Step 18
Connect the purple mix low probe wire.
Note: Double check all of the wire connections with
the wiring diagram.
Step 22
Connect the mix low light wires, and replace the
thermistor probe, and mix hopper temperature probe
into their respective bulb well locations.
Step 19
Connect the power cord, supplied by the end user, and
replace the control box cover.
Step 20
Replace the upper side panels and fasten the hood
with rivets supplied (p/n: 022517).
Step 21
Replace all the panels.
Note: Be sure the thermistor probe bulb well has
plenty of antifreeze before replacing the thermistor
probe.
Step 23
Fasten all the components in the control channel area
and install the decorative plate.
Step 24
Install the beater shaft, beater assembly and blade,
door assembly, and the drip pan in the front of the unit.
Semi- Assembled Navy Units
10
Models 702 & 772
Semi- Assembled Model 702 Exploded View
Models 702 & 772 Semi- Assembled Navy Units
11
Semi- Assembled Navy Units
12
Models 702 & 772
Section 4 To the Operator
The freezer you have purchased has been carefully
engineered and manufactured to give you dependable
operation. The Taylor freezer, when properly operated
and cared for, will produce a consistent quality product.
Like all mechanical products, this machine will require
cleaning and 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 Taylor 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 review these procedures in
order to be properly trained and to make sure that there
is no confusion.
In the event that you should require technical
assistance, please contact your local authorized
Taylor Distributor.
Note: Your Taylor warranty is valid only if the parts are
authorized T aylor parts, purchased from the local
authorized Taylor Distributor, and only if all required
service work is provided by an authorized Taylor
service technician. Taylor reserves the right to deny
warranty claims on units or parts if non- Taylor
approved parts or incorrect refrigerant were installed
in the unit, system modifications were performed
beyond factory recommendations, or it is determined
that the failure was caused by abuse, misuse, neglect,
or failure to follow all operating instructions. For full
details of your Taylor Warranty, please see the Limited
Warranty section in this manual.
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 unit are
warranted for the term stated in the Limited Warranty
section in this manual. 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 unit’s refrigeration system,
only the refrigerant specified on the affixed data
label should be used. The unauthorized use of
alternate refrigerants will void your Taylor compressor
warranty. It is the unit 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.
The Taylor Company 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. T o 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.
The freezer you have purchased uses
refrigerants 404a and 134a. These “ozone
friendly” refrigerants comply with the U.S. Clean
Air Act of 1990.
131206
Models 702 & 772 To the Operator
13
Section 5 Safety
We, at Taylor Company, are concerned about the
safety of the operator at all times when they are
coming in contact with the unit and its parts. Taylor
makes every effort to design and manufacture built- in
safety features to protect both operators and service
technicians.
Installing and servicing refrigeration equipment can be
hazardous due to system pressure and electrical
components. Only trained and qualified service
personnel should install, repair, or service refrigeration
equipment. When working on refrigeration equipment,
observe precautions noted in the literature, tags and
labels attached to the unit, and other safety
precautions that may apply. Follow all safety code
requirements. Wear safety glasses and work gloves.
IMPORTANT - Failure to adhere to the
following safety precautions may result in severe
personal injury or death. Failure to comply with
these warnings may also damage the unit and/or
its components. Such damage may result in
component replacement and service repair
expenses.
DO NOT operate the unit without reading
this entire Operator Manual first. Failure to follow all of
these operating instructions may result in damage to
the unit, poor performance, health hazards, personal
injury, or death.
This unit is to be used only by trained
personnel. It is not intended for use by children or
people with reduced physical, sensory, or mental
capabilities, or lack of experience and knowledge.
Where limited equipment operation is allowed for
public use, such as a self- serve application,
supervision or instruction concerning the use of the
appliance by a person responsible for their safety is
required. Children should be supervised to ensure that
they do not play with the appliance.
S All repairs should be performed by an
authorized Taylor service technician.
S The main power supplies to the unit must be
disconnected prior to performing installation,
repairs, or maintenance.
S DO NOT operate the unit unless it is
properly grounded.
S DO NOT operate the unit with larger fuses
than specified on the unit’s data label.
S Units 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.
S Stationary units 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.
S Supply 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. Contact your local authorized Taylor
Distributor for service.
DO NOT use a water jet to clean or rinse the
unit. Failure to follow these instructions may result in
serious electrical shock.
Safety
14
Models 702 & 772
S DO NOT allow untrained personnel to
operate this unit.
S DO NOT operate the unit unless all service
panels and access doors are restrained with
screws.
S DO NOT remove any internal operating
parts (including, but not limited to, freezer
door, beater, or scraper blades), unless all
control switches are in the OFF position.
Failure to follow these instructions may result in severe
personal injury, especially to fingers or hands, from
hazardous moving parts.
This unit has many sharp edges that can
cause severe injuries.
S DO NOT put objects or fingers in the door
spout. This may contaminate the product
and cause severe personal injury from blade
contact.
S USE EXTREME CAUTION when removing
the beater assembly. The scraper blades
are very sharp.
This unit must be placed on a level surface.
Extreme care should be taken when moving the unit for
any reason. Two or more persons are required to
safely move this unit. Failure to comply may result in
personal injury or damage to the unit.
Access to the service area of the unit must be
restricted to persons having knowledge and practical
experience with the unit, in particular as far as safety
and hygiene are concerned.
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 Operator Manual for the proper
procedure to clean this unit.
This unit is designed to maintain product
temperature under 41°F(5°C). Any product being
added to this unit must be below 41°F(5°C). Failure to
follow this instruction may result in health hazards and
poor freezer performance.
DO NOT run the unit without product. Failure to follow
this instruction can result in damage to the unit.
DO NOT obstruct air intake and discharge openings:
Counter Model: 3” (76 mm) minimum air space on
both sides, 6” (152 mm) on the back, and 4- 1/4” (108
mm) on the bottom.
Console Model: 3” (76 mm) minimum air space on
sides and rear, and 7- 1/2” (191 mm) minimum on
bottom. Failure to follow this instruction may cause
poor freezer performance and damage to the
machine.
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.
131206
Models 702 & 772 Safety
15
Section 6 Operator Parts Identification
Model 702
Item Description Part No.
*Cover A.- Hopper
(115V- 60- 1 only)
1
Cover A.- Hopper- Std. (460- 60 - 3) X38458
1a Knob - Hopper Cover 025429
2 Tube- Feed- SS- 5/32 Hole 028967- 2
3 Panel- Rear 702 Navy 050929
4 Panel- Side 702 Right 050928
5 Pan- Drip 13- 1/4 Long 039027
X39291
Operator Parts Identification
Item Description Part No.
6 Panel- Side 5472 HT Upper 042317
7 Shield- Splash 15” L x 5- 13/32 022763
8 Tray-Drip14-7/8Lx5-1/8SG 013690
9 Panel A. - Front X50930
10 Stud- Nose Cone 022822
11 Panel A.- Side Left X50940
12 Gasket- Hopper (460- 60- 3) 038375
*Insulated hopper cover that requires no gasket.
16
Models 702 & 772
Model 702 Door Assembly
Item Description Part No.
1 Seal- Drive Shaft 032560
2 Shaft- Beater 033498
3 Beater A.- 4 Qt.- 1 Pin Support X49490
4 Bearing- Front 013116
5 Gasket- Door 5.177 ID x 5.9380 016672
6 Decal- Lift Plate Front 015200
7 Valv e A.- D raw X13624- SP
Models 702 & 772 Operator Parts Identification
Item Description Part No.
8 O- Ring - 1- 1/16 OD x .139 W 020571
9 Cap- Design- 1.188” ID 6 Point 013139- 6
10 Nut- Stud 021508
11 Door A.- 1 Spout- 4 Qt. X30269- SER
12 Blade- Scraper- Plastic 046237
13 Clip- Scraper Blade 8.75 Inch 046238
17
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