Electro Freeze CS704 User Manual
OPERATOR’S MANUAL
with Replacement Parts List
COMPACT SERIES
SHAKE FREEZER
Model CS704
185260 - 6/17
H. C. Duke & Son, LLC P/N 185260 June 2017 Printed in U.S.A.
Operator’s Manual
for the
Electro Freeze Model CS704
Compact Series Flavor Injected
Shake Freezer
All contents © Copyright 2017 H.C. Duke & Son, LLC, 2116 Eighth Avenue, East Moline, Illinois 61244
i
ELECTRO FREEZE Shake Model CS704
SAFETY FIRST!
Follow these four steps to safety ....
1. Recognize Safety Information ....Look for this
safety alert symbol throughout this manual.
When you see this symbol on your freezer or in this manual, be
alert to the potential for personal injury. Follow recommended
precautions and safe operating practices.
2. Understand Signal Words ....
The signal words — DANGER, WARNING and
DANGER
WARNING
CAUTION — are used with the safety alert symbol
(DANGER decals on the freezer may or may not have the
safety alert symbol, but the message is the same). Decals
with the words DANGER, WARNING or CAUTION appear
on the freezer. DANGER identies the most serious
hazard. Decals with the words DANGER or WARNING
are typically near specic hazards on the freezer. General
precautions are listed on CAUTION safety decals. In this
manual, CAUTION messages with the safety alert symbol
call attention to safety messages.
CAUTION
3. Follow Safety Instructions ....
Read and understand all safety messages in this manual.
Read and understand the decal safety messages on your
freezer. Take notice of the location of all decals on the freezer
and keep the safety decals in good condition. Check them
periodically and replace missing, damaged or illegible safety
decals. The safety decals must remain in place and legible
for the life of the freezer. If you need new decals, use the
information and illustrations on pages v and vi of this manual to
identify the decal and call or write to H.C. Duke & Son, LLC. or
local Electro Freeze distributor.
DO NOT attempt to operate the soft serve freezer until you
read and understand all safety messages and the operating
instructions in this manual.
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ELECTRO FREEZE Shake Model CS704
SAFETY FIRST!
4. Definitions ....
Trained person (or Operator): A person who has been trained in the basic operation of
the freezer. This person is knowledgeable in the operation of machine startup, stopping,
lling, and basic cleaning, disassembly, washing, and sanitation of the freezer.
Freezer Technician: A person who has been trained by a factory representative, or
an experienced and qualied service person, to perform more complicated operations
such as freezer installation, maintenance repairs, component replacement , is aware of
hazards associated with electricity, moving parts, and takes necessary steps to protect
against injury to themselves and other people.
5. Operate Safely ....
IMPORTANT: Store Managers,owners, and supervisors must be aware of staff
capabilities and that they do not perform freezer operations outside their level of
knowledge or responsibility.
6. Caution ....
• This Freezer is to be operated by trained persons. The Dispense
feature, if used by public in self-serve applications, shall be monitored
by trained persons able to assist people with physical, sensory or mental
impaired capabilities.
DO NOT allow untrained personnel to maintain or
service this freezer. Failure to follow this instruction
may result in severe personal injury. DO NOT operate
the freezer until all service and access covers are
secured with screws. DO NOT attempt to repair
the freezer until the main power supply has been
disconnected. Some freezers have more than one
disconnect switch. Contact your authorized service
representative for original equipment parts.
• Children should not be allowed to play around this equipment.
• Do not store explosive substances such as aerosol cans with a ammable propellant
in freezer.
• This appliance is not designed for outdoor weather conditions and shall not be
exposed to rain.
• Do not wash machine with power sprayer. Do not install machine next to a power
sprayer where splash of freezer can occur.
• Machine is designed for use in areas of normal atmosphere. It is not to be used in
areas subject to explosion-proof standards.
iii
ELECTRO FREEZE Shake Model CS704
Safety Decal Locations
Do not attempt to operate the freezer
until all safety precautions and operating
instructions in this manual are read and
understood.
Take notice of all warning, caution,
instruction and information decals (or
labels) on the freezer as shown in the
gure on the following page. The labels
have been put there to help maintain a
safe working environment.
The labels have been designed to
withstand washing and cleaning. All
labels must remain legible for the life of
the freezer. Check labels periodically
to be sure they can be recognized as
warning labels.
If it is necessary to replace any label,
please contact your local authorized
Electro Freeze Distributor or H. C. Duke
& Son, LLC. When ready to order you will
need to determine the (1) part number,
(2) type of label, (3) location of label, and
(4) quantity required, and include a return
shipping address.
You may contact your local authorized
Electro Freeze Distributor, as follows:
Name:
Address:
Phone:
or — for factory service assistance —
contact H. C. Duke & Son, LLC. Electro
Freeze Service Department by phone or
FAX:
Phone: 309-755-4553
800-755-4545
FAX: 309-755-9858
E-mail: service@hcduke.com
(The decals on the next page are numbered 1 and 2. Those numbers correspond to the numbers in the table below.
The table provides the part number,
description, and quantity for each decal.)
No. Part No. Description (Qty)
1 HC165126 Decal — Panel Removal Warning (3)
2 HC165025 Decal — Beater Warning (1)
iv
ELECTRO FREEZE Shake Model CS704
Safety Decal Locations
1 P/N HC165126
2 P/N HC165025
v
ELECTRO FREEZE Shake Model CS704
Table of Contents
SECTION DESCRIPTION PAGE
SAFETY ........................................................................................... ii
SAFETY DECALS LOCATIONS ............................................iv
PART I
1. INTRODUCTION .............................................................................1
2. NOTE TO INSTALLER ...................................................................1
2.1. Uncrating and Inspection ................................................................2
2.2. Installation ......................................................................................2
2.3 Electrical Connections ...................................................................3
3. SPECIFICATIONS ...........................................................................3
3.1 Particulars. ...................................................................................... 3
3.2 Data Plate ........................................................................................4
3.3 Reference Information .....................................................................4
3.4 Installation Date ..............................................................................4
3.5 Dimensions. .....................................................................................5
4. PART NAMES AND FUNCTIONS .............................................6
5. OPERATOR CONTROLS & INDICATORS .................. 10
5.1 Rinse Switch .................................................................................11
5.2 Spinner Motor Fuse .......................................................................11
5.3 Lexible Spinner Shaft.....................................................................11
5.4 Reset -Circuit Breaker ...................................................................11
5.5 Selector Switch .............................................................................11
5.6 Prime / Calibrate ............................................................................12
5.7 Flavor Selection Buttons ................................................................12
5.8 Indicator Light “ADD MIX” .............................................................12
5.9 Mix Float ........................................................................................12
6. DISASSEMBLY AND CLEANING ...........................................13
6.1 Accessories ..................................................................................13
6.2 Disassembly Instructions ...............................................................14
6.3 Cleaning Instructions ....................................................................17
7. ASSEMBLY .......................................................................................19
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ELECTRO FREEZE Shake Model CS704
Table of Contents - continued
SECTION DESCRIPTION PAGE
8. START-UP INSTRUCTIONS .....................................................23
8.1 Sanitizing ......................................................................................23
8.2 Priming ...........................................................24
8.3 Dispensing Milk Shakes .................................................................25
9. DAILY PROCEDURES ................................................................ 26
9.1 Night or Idle Operation ..................................................................... 26
9.1.1 General Cleaning ..................................................................26
9.1.2 Operation ..............................................................................27
9.2 Draining Product From Freezer ........................................................ 28
10. PRODUCT INFORMATION ............................... 29
10.1 Overrun ........................................................................................ 29
10.2 Rerun ............................................................................................29
11. SYRUP FLAVOR SYSTEM ................................ 30
11.1 Syrup Line Disassembly and Sanitizing ......................................... 30
11.2 Syrup Line Assembly and Sanitizing ............................................. 32
11.3 Syrup Calibration ...........................................................................34
12. ROUTINE MAINTENANCE ............................................ 35
13. TROUBLESHOOTING TABLES ........................ 39
vii
1 Introduction
ELECTRO FREEZE Shake Model CS704
This freezer is designed to produce four
avors of milkshakes plus vanilla, with
a temperature range of 24° to 30°F (-4°
to -1°C). If such products are prepared
from powdered concentrate, they should
be precooled to 38°F (3°C) prior to
introduction to the freezer. Syrups should
be free of pulp, seeds or matter that could
clog injection ports. Use of other products
in this machine is considered misuse (see
Warranty).
This manual has been prepared to assist
you in the proper operation and general
maintenance of the Electro Freeze Model
CS704 Freezer.
Your freezer will not compensate for or
correct any assembly or priming errors
made during the initial start-up. Therefore,
it is important to follow the assembly
and priming procedures detailed in this
manual.
Make sure all personnel responsible for
equipment operation completely read and
understand this manual before operating
the freezer. When properly operated and
maintained, the freezer will produce a
consistent quality product.
If you require technical assistance, please
contact your local authorized Electro
Freeze Distributor, as follows:
Name:
Address:
Phone:
For factory service assistance — contact
H. C. Duke & Son, LLC, Electro Freeze
Service Department as follows.
Phone: (309) 755-4553
(800) 755-4545
FAX: (309) 755-9858
E-mail: service@electrofreeze.com
2 Note to Installer
This freezer must be installed and serviced by an Electro Freeze Distributor or
authorized service technician in accordance with the installation instructions.
After installation, the warranty registration card must be completed and returned to
validate the warranty.
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1
ELECTRO FREEZE Shake Model CS704
2.1 Uncrating and Inspection
CAUTION
Be sure to properly
support the machine
when removing bolts and
installing legs or casters.
When the unit is received and while
the carrier is still present, inspect the
shipping carton for any damage that
may have occurred in transit. If the
SHOCKWATCH® label indicates red and/
or the carton is broken, torn, or punctured
note the damage on the carrier’s freight
bill and notify the carrier’s local agent
immediately. Also note on the freight bill.
2.2 Installation
CAUTION
All materials and connections
must conform to local
requirements and be in
compliance with the National
Electrical Code (NEC).
1. Remove the carton from the pallet,
and move the machine as close as
possible to the permanent location.
2. Remove the shipping bolts on the
bottom of the freezer and remove the
freezer from the pallet.
CAUTION
Use caution when moving the
freezer to avoid a tip hazard.
3. A minimum 3-inch (7.6 cm) air
space is required on both sides and back
of the freezer for adequate ventilation.
4. Test the operation of the head and
ex shaft cover safety switches prior to
placing the freezer in service. See Section
12, Routine Maintenance, Monthly.
CAUTION
Tip Hazard. Front side of freezer
must remain positioned on door
side of cart. DO NOT reverse
position of freezer on cart.
1. This freezer is designed for indoor
use and must be protected from outdoor
weather conditions.
2. This freezer requires a potable
water connection for the rinse line. The
water inlet is located at the back of the
freezer next to the power supply. A 3/8”
MPT water inlet connector will be needed.
2
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2.3 Electrical Connections
ELECTRO FREEZE Shake Model CS704
CAUTION
All materials and
connections must conform
to local requirements and
be in compliance with the
National Electric Code (NEC).
CAUTION
To prevent accidental
electrical shock, a receptacle
with a positive earth ground
is required.
1. Always verify electrical
specications on the data plate (gure
3-2) of each individual freezer. Data plate
specications will always supersede the
information in this manual.
2. This freezer requires a protected
20 amp 230 volt circuit. Connect the
freezer to a circuit separate from any
other electrical equipment. The power
cord on this freezer connects to a NEMA
6-20R receptacle. See Figure 2-1.
3. Supply voltage must be within
±10% of voltage indicated on the
nameplate. Request your local power
company to correct any voltage problem.
4. The control transformer in the
electrical box is factory wired to 208 volts
(red) wire tap for 208V nominal power
supply. If power supply is between 230240 volts use 240V (orange) wire tap on
transformer.
Figure 2-1
3 Specifications
3.1 Particulars
Width (in/cm) 18.4/46.7
Height (in/cm) 58.9/149.7
Depth (in/cm) 28.1/71.4
Weight (lbs/kg) 250/113.4
Voltage* 208-230/60/1
Min. Circuit Ampacity 20.0
Compressor 1 HP/8000 (BTUH)
.75 kw (Motor)
2.3 kw (Cooling)
Beater Motor 1/2 HP/.37 kw
Refrigerant R-404a
Charge 32.0 oz/.91 kg
Cooling Air
Hopper 20 qts/18.8 liters
Cylinder 7 qts/7.1 liters
*Contact factory for other voltages.
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3
ELECTRO FREEZE Shake Model CS704
3.2 Data Plate
Model:
Ser. No.
~ Volts:
Ph. Hz. Wire :
Cyl. Compressor RLA LRA V
Beater Motor FLA HP V
Condenser Fan FLA HP V
Hopper Compressor RLA LRA V
Cylinder Refrigerant: Amt:_____LB Type:_____
Design Pressure: High:_____psig Low:_____psig
Hopper Compressor Refrigerant Amt:____ oz Ty pe:____ Design Pressure High:_____psig Low:______psig
Min. Circuit Ampacity: _____A
Max Fuse Size or HACR Cir. Breaker: _____A
SINGLE UNIT
Figure 3-1
3.3 Reference Information
Write in Reference
Information HERE!
ASSEMBLED IN USA
The data plate provides important
information that the operator should
record and have available for parts
ordering, warranty inquiries and service
requests.
Fill in the following information as soon as
you receive the Electro Freeze CS704.
(The item numbers — encircled, below —
correspond with the call-out numbers in
gure 4-1.)
3.4 Installation Date
Fill in the date of installation, and the name, address, and phone number of the
installer in the space provided below. This information will be needed when ordering
parts or service for the CS704 freezer.
Date of installation: _____________________________________
Installed by: _____________________________________
Address: _____________________________________
_____________________________________
Phone: _____________________________________
1.) Model Number: _________________
2.) Serial Number:__________________
3.) Electrical Spec: Voltage ________
Phase _______ Hertz _________
4.) Maximum Fuse Size: ____________
5.) Minimum Circuit Ampacity: _______
4
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3.5 Dimensions
ELECTRO FREEZE Shake Model CS704
Figure 3-2 Electro Freeze Model CS704 Dimensions
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5
ELECTRO FREEZE Shake Model CS704
4 Part Names and Functions
19
20
Figure 4-1 Head Assembly
6
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ELECTRO FREEZE Shake Model CS704
4 Part Names and Functions — continued
The following part names and descriptions refer to gure 4-1.
1.) COVER - ASSY FLEX SHAFT: Protects
from accidental contact with rotating
shaft. Must be in place to operate.
2.) O-RING - HEAD: Seals the head to the
freezing cylinder. Must be lubricated.
3.) BUSHING - BEATER BEARING: Holds
the beater in place at the front of the
cylinder. Must be inserted into the
head and lubricated before assembly.
4.) KEEPER - ASSY SPINDLE: Secures
the handle to the head.
5.) HEAD - ASSY. W/RETAINERS 4
FLAVOR: Encloses the freezing
cylinder and provides an opening for
product to be dispensed.
6.) QUICK CONNECT WITH SHUT OFF:
Allows syrup line to be removed from
the mix chamber.
7.) O-RING - SYRUP LINE: Prevents syrup
from leaking.
15.) BUSHING - MIXER SHAFT: Holds the
mixing shaft in place. Prevents wear
on plunger.
16.) ROD - ACTUATOR: Starts the freezer
when dispensing. Must be in place
before product can be dispensed.
17.) O-RING - PLUNGER-LOWER
18.) O-RING - PLUNGER-LOWER: Seals
the plunger in the head. Must be
lubricated to seal and slide properly.
19.) SHAFT - FLEXIBLE W/CASING 161/2: Spins the mix shaft.
20.) CONNECT - ASSY DRIVE: Quick
connector used to connect or
disconnect the exible shaft from the
mix shaft
8.) SHAFT - ASSY MIX: Mixes avor into
shake mix.
9.) CHAMBER - MIX: Delivers syrup to the
shake mix.
10.) O-RING - CHAMBER: Prevents mix
from leaking. Lightly lubricate.
11.) HANDLE - ASSY COMPLETE: Opens
and closes the plunger to start and stop
the ow of product from the freezer.
12.) O-RING - PIVOT POST: Holds the pivot
post in place. Lightly lubricate.
13.) POST - PIVOT: Holds the handle in
place.
14.) PLUNGER - DISPENSING: Seals the
product opening in the head when
closed. Allows product to ow when
open.
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7
ELECTRO FREEZE Shake Model CS704
T
BLADE-SCRAPER
4. Part Names and Functions — continued
SEAL(CUP)-BEATER SHAFT
SHAFT-BEATER
SEAL(CUP)-BEATER SHAF
WASHER-DOUBLE SHAFT SEAL
BLADE-SCRAPER
Figure 4-2 Beater Shaft Assembly
The following part names and descriptions
refer to gure 4-2.
1.) SHAFT - BEATER:
Rotates in the
freezing cylinder, blending air and
mix and ejecting product.
2.) BLADE - SCRAPER:
Scrapes the
frozen product from the freezing
cylinder wall.
3.) SEAL (CUP) - BEATER SHAFT:
Seals the opening between the
freezing cylinder and the beater. DO
NOT LUBRICATE.
4.) WASHER - SHAFT SEAL:
Holds
the shaft seals together. Must be
lubricated.
8
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ELECTRO FREEZE Shake Model CS704
4. Part Names and Functions — continued
O-Ring
Tube-Mix Feed
Insert-Assy. Mix
Feed
O-Ring
Figure 4-3 Mix Feed Tube
The following part names and descriptions refer to gure 4-3.
1.) TUBE - MIX FEED: Meters the correct
amount of mix and air into the freezing
cylinder from the hopper.
2.) INSERT - ASSEMBLY MIX FEED
(Regulator): Regulates mix ow.
Open position for day operation and
closed position for night.
3.) O-RING - INSERT ASSEMBLY: Holds
the insert in place in the mix tube.
Must be lubricated.
4.) O-RING - MIX FEED ASSEMBLY:
Seals the opening between the
hopper and mix feed tube. O-rings do
not need lubrication.
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9
ELECTRO FREEZE Shake Model CS704
5 Operator Controls
Figure 5-1
The following paragraphs describe
the operator controls and indicators.
Refer to gure 5-1 for location of these
controls and indicators on the freezer.
NOTE: The head, actuator rod, and
metal cover must be in place before the
beater will operate.
5.1 Syrup Pump Switch (1)
This two-position switch controls the
operating mode of your freezer.
a. “ON” (right) — This position
operates the syrup motor. Always use this
mode when operating the syrup system.
b. “OFF” (left) — In this position
the syrup motors do not run.
CAUTION
Test operation of the head switch
prior to placing the freezer in
service. See Section 12, Routine
Maintenance, Monthly.
—continued
10
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ELECTRO FREEZE Shake Model CS704
5 Operator Controls — continued
5.2 Prime / Calibrate (2)
This push button switch is used for
priming and calibrating the avor syrups.
With the syrup switch in the “ON” position,
the selector switch (5) in “AUTO” and
a avor selection (8) made, pressing
this button will activate the pump for
that avor to ush and prime the avor
delivery line and to allow calibration of the
syrup ow.
5.3 Reset - Circuit Breaker Spinner Motor (3)
This control protects the spinner motor
against failure from an overload condition
by automatically shutting it down. To
restart wait 2-3 minutes, then depress the
reset button.
If the circuit breaker trips frequently,
your spinner mechanism and circuitry
should be checked. Contact your
Electro Freeze Distributor.
Important:
5.4 Syrup Pump Fuse 4
This holds the AGC fuse for the syrup
pumps.
5.5 Reset — Circuit Breaker Beater Motor (5)
This control protects the beater motor
against failure from an overload condition
by automatically shutting down the
freezer. To restart properly, turn the
SELECTOR switch (5) to “OFF”, wait 2-3
minutes, then depress the reset button
and turn the SELECTOR switchback to
the “AUTO” or “CLEAN” position.
Important:
If the circuit breaker trips frequently,
your freezer should be checked for
proper product temperature, overrun
and voltage. Contact your Electro
Freeze Distributor.
5.6 Selector Switch (6)
This three-position switch controls the
operating mode of your freezer.
a. “CLEAN” (left) — This
position operates the beater only (no
refrigeration). Always use this mode
when performing cleaning and sanitizing
operations.
b. “OFF” (center) — In this
position the beater motor and refrigeration
system will not operate.
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Important:
Do not use the “FREEZE” position with
water or sanitizer in the cylinder — the
freezer will be damaged.
c. “AUTO” (right) — This
position activates both the beater motor
and refrigeration unit. This is the normal
operating position which will maintain a
cylinder temperature of 26° to 28°F (-3° to
-2°C).
11
ELECTRO FREEZE Shake Model CS704
5 Operator Controls — continued
5.7 Rinse Switch (7)
This momentary switch activates the rinse
water solenoid valve and the spinner motor
to rinse the mixing chamber between avor
changes to eliminate avor carryover.
5.8 Flavor Selection Buttons (8)
T
hese push buttons are used to select the
avor of shake to be dispensed. Press
the button for the desired avor. Selection
of another button will cancel the previous
selection. ‘Vanilla’ provides product from
the cylinder only, with no added avoring.
When ‘Chocolate’, Jamocha’ , or ‘Special’
are selected, that corresponding pump
will operate when product is dispensed.
5.9 Indicator- Light — “ADD MIX” 9
This light indicates the mix in the mix
hopper is at a low level and should be
relled as soon as possible. Always
maintain at least 2 inches (5.1 cm) of mix
in the hopper. For best operating results
keep hopper full.
5.10 Mix Float (not shown)
When this oat is mounted on the oat
stem inside the hopper it automatically
senses the mix level. It activates the “Add
Mix” light
12
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