Page 1
OPERATOR’S MANUAL
with Illustrated Parts List
SOFT SERVE
TWIST FREEZER
Model
GES-103
184560 — 1/18
H.C. Duke & Son, LLC. P/N 184560 January 2018 Printed In U.S.A.
Page 2
Page 3
Operator’s Manual
for the
Soft Serve Twist Freezer
Model GES-103
All contents © Copyright 2018 H.C. Duke & Son, LCC, 2116 Eighth Avenue, East Moline, Illinois 61244
Page 4
Twin Twist Soft Serve Freezer Model GES-103
Safety
First!
SAFETY FIRST!
Follow these four steps to safety ....
1. Recognize Safety Information ....Look for this
safety alert symbol throughout this manual.
2. Understand Signal Words ....
DANGER
WARNING
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.
The signal words — DANGER, WARNING and
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.
CAUTION
In this manual, CAUTION messages with the safety
alert symbol call attention to safety messages.
3. Follow Safety Instructions ....
Read and understand all safety messages in this
manual and 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 be legible for
the life of the freezer. If you need new decals, use the
information and illustrations on pages iv and v of this
manual to identify the decal and call or write to H.C.
Duke & Son, LLC.
DO NOT attempt to operate the GES-103 Twin Twist
Soft Serve Freezer until you read and understand all
safety messages and the operating instructions in this
manual.
ii 184560
Page 5
Twin Twist Soft Serve Freezer Model GES-103
SAFETY FIRST!
4. Definitions ....
Trained person (or Operator): A person who has been trained in the basic operation of
the freezer. This person is knowledged in 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 IDQ authorized
service representative or H.C. Duke & Son, LLC
Service Department 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.
184560 iii
Page 6
Twin Twist Soft Serve Freezer Model GES-103
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 next 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 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.
For factory service assistance, contact H.
C. Duke & Son, LLC, Service Department
by phone or FAX:
Phone: (309) 755-4553
(800) 755-4545
FAX: (309) 755-9858
E-mail: [email protected]
(The decals on the next page are
numbered 1, 2, 3, and 4. 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
1 ..................... HC165025 ...................Decal-Beater Warning (1)
2 ..................... HC165246 ..................Decal-Pressurized System (3)
3 ..................... HC165126 ...................Decal-Panel Removal Warning (1)
4 ..................... HC165048 ...................Decal-Warning Rotating Parts (2)
iv 184560
Page 7
Twin Twist Soft Serve Freezer Model GES-103
1
Safety Decal Locations
P/N HC165025
Hazardous rotating beater shaft. Do not operate
unit with dispense head removed.
Before removing dispense head:
1. Turn all control switches to "OFF", and
2. Disconnect all power supplies. Unit may
have more than one power supply.
P/N HC165126
3
Pressurized system.
Depressurize unit
before dismantling
mix transfer system.
P/N HC165246
2
Do not
operate
with cover
removed!
165048
Do not
operate
with cover
removed!
165048
Do not
operate
with cover
removed!
165048
P/N HC165048
4
184560 v
Page 8
Twin Twist Soft Serve Freezer Model GES-103
Table of Contents
Safety Decal Locations .....................................................iv
1 Introduction ............................................................... 1
2 Note to Installer .......................................................... 1
2.1 Uncrating and Inspection ...............................................2
2.2 Installation .....................................................................3
2.3 Electrical Requirements
2.4 Electrical Connections ...................................................4
3 Specifications ............................................................ 5
3.1 Particulars .....................................................................5
3.2 Dimensions ....................................................................6
3.3 Data Plate ......................................................................6
3.4 Reference Information ...................................................7
3.5 Installation Date .............................................................7
3.6 WEEE (Waste Electrical and Electronic Equipment) .......7
3.7 Equipment Videos ..........................................................7
4 Virtual Quality Management System ........................... 8
5 Part Names and Functions ........................................ 10
.................................................3
6 Operator Controls .................................................... 16
7 Operator Display Menus ........................................... 18
8 Disassembly and Cleaning ........................................ 22
8.1 Cleaning Accessories ....................................................23
8.2 Disassembly Instructions ...............................................24
8.3 Cleaning Instructions .....................................................26
8.3.1 Cleaning and Lubricating - MTS Assembly ..........29
9 Assembly ................................................................. 30
10 Start-up Instructions ................................................ 34
10.1 Sanitizing .....................................................................34
10.2 Priming ........................................................................35
10.3 Dispensing Product ......................................................36
11 Closing Procedures .................................................. 37
11.1 Draining Product ..........................................................37
12 General Information ................................................. 40
12.1 Dairy Queen® Mix .........................................................40
12.2 Checking the Frozen DQ® Product ...............................40
12.3 Product Temperature ...................................................40
12.4 Overrun .......................................................................41
12.5 Overrun Adjustment .....................................................41
12.6 Rerun ...........................................................................42
12.7 Overrun Chart ..............................................................42
13 Routine Maintenance ................................................ 43
14 Troubleshooting ....................................................... 49
14.1 MTS Troubleshooting Tables ........................................54
15 VQM Error Codes ..................................................... 56
vi 184560
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Twin Twist Soft Serve Freezer Model GES-103
Part II
Replacement Parts
Figure 1 Head Assembly ............................................1
Figure 2 Beater Shaft Assembly
Figure 3 Cabinet Parts
Figure 4 MTS—RMT Hose Assembly
Figure 5 Mix Drawer
Figure 6 Mix Transfer System — RMT
Figure 7 Switch Box
Figure 8 Spigot Switch Assemblies
Figure 9 Capacitor & Relay Box
Figure 10 AC Side/Back View
Figure 11 WC Side/Back View
Figure 12 Panel Breakdown
Figure 13 Panel Hardware & Decals
Figure 14 Gear Reducer•
Figure 15 Evaporator Mix Tube Assembly
...............................................3
................................................... 5
...................................................8
...........................................15
.................................2
........................... 4
.........................6
............................10
.................................. 10
.....................................11
....................................12
.......................................13
...........................14
................... 16
Figure 16 Air Cooled Remote Condenser
Accessories
O-Ring Chart
..............................................................18
.............................................................19
...................17
184560 vii
Page 10
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Twin Twist Soft Serve Freezer Model GES-103
1 Introduction
The GES-103 Freezer is designed to
produce DQ frozen soft serve ice cream
or DQ yogurt, with a product serving
temperature of 18 to 19ºF (-8 to -7ºC).
If such products are prepared from
powdered concentrate, they should
be precooled to 40°F (4°C) prior to
introduction to the freezer. Use of other
products in this machine is considered
misuse (see Warranty.)
This manual has been prepared to assist
in the training of personnel on the proper
operation and general maintenance of
your Duke freezer.
Your freezer will not compensate for or
correct any assembly or priming errors
made during the initial start-up. Therefore
it is extremely important to follow the
assembly and priming procedures
detailed in this manual.
Be sure all personnel responsible for
equipment operation completely read and
understand this manual before operating
the freezer. When properly operated and
maintained, your freezer will produce a
consistent quality product.
If you require technical assistance, please
contact your local authorized H.C. Duke &
Son, LLC service company:
Name ______________________
Address_____________________
____________________________
Phone_______________________
or H.C. Duke & Son, LLC Service Dept.
for factory service assistance.
Phone: (309) 755-4553
(800) 755-4545
Fax number: (309) 755-9858
E-mail: [email protected]
2 Note to Installer
This freezer must be installed and serviced by a service technician in
accordance with the installation instructions.
After installation the warranty registration card must be completed and
returned to validate warranty.
184560 1
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Twin Twist Soft Serve Freezer Model GES-103
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
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 (gure 2-1) and
install either the legs or casters (gure
2-2).
Figure 2-1 Machine bolted to Shipping Base
CASTER
WITH BRAKE
Figure 2-2 Installing Mounting Legs or Casters
REAR
OF UNIT
CASTER
WITHOUT
BRAKE
NOTE: Screw casters or
legs all the way in coupling,
then adjust out to level side
to side with 1/4 inc (6mm)
slope to the front.
— continued
2 184560
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Twin Twist Soft Serve Freezer Model GES-103
2.2 Installation
CAUTION
All materials and connections
must conform to local
requirements and be in
compliance with the National
Electrical Code (NEC).
1. This freezer is designed for indoor use
and must be protected from outdoor
weather conditions.
2. Where codes permit, we recommend
that the freezer be installed on casters
and have exible water and electrical
connections for service and cleaning
ability.
IMPORTANT:
Unit requires air ventilation. The
minimum air space at the sides must
be 6 inches (15.2cm) and 1 in.(2.5cm)
in the rear or 6 inches in the rear and
1 inch on the sides. Top must have
29 inches clearance. Failure to follow
minimum air clearances will void
warranty.
3. All models require 6 inches (15.3 cm)
minimum air space at rear, 1in(2.54
cm) on sides or 6 inch (15.3 cm) on
each side and 1inch (2.54cm) at rear.
Space above freezer is to be 29 inch
(79.7 cm) and is to be provided with
an 6 in (15.3 cm) air deector at rear
if boxed on 3 sides. Insure freezer is
not subjected to hot exhaust air from
other equipment. Anything blocking
ventilation, (e.g. cone dispenser), will
reduce the efciency of the freezer.
4. Water cooled double models will
require a 1/2” MPT water inlet and
water waste connection. Both water
condensers are tied together so that
one water inlet and one water waste
is all that is required. The connections
are found on the bottom under the
compressor mounting area and are
clearly tagged - “Water Inlet” and
“Water Waste”. A manual shut-off
valve should be installed in the water
inlet line at the time of installation.
The water pressure must be between
35-140 psig (241-965kPa) for proper
operation.
5. Place the freezer in the nal location
and level the machine by adjusting
the legs or casters so that the unit
is level side-to-side, and the front
is approximately ¼” lower than the
rear, to allow proper drainage of the
freezing cylinder.
6. Water Cooled Do not allow freezer to
be in ambient where air temperature
goes below 0°C (32°F),the freezing
temperature of water.
7. Water consumption increases if
temperature of entering water is
above 20°C (65°F)
2.3 Electrical Requirements
CAUTION
To prevent accidental
electrical shock, a positive
earth ground is required.
1. Always verify electrical specications
on the data plate of each individual
freezer. Data plate specications will
always supersede the information in
this manual. (See Figure 3-2)
184560 3
2. Supply voltage must be within + 10%
of voltage indicated on the nameplate.
Also, on three-phase systems,
voltage between phases must be
balanced within 2%. (More than a
6 volt difference between any two
voltage measurements at 208-230
volts indicates a possible imbalance.)
Request your local power company to
correct any voltage problem.
3. An easily accessible main power
disconnect must be provided for all
poles of the wiring to the freezer.
Page 14
Twin Twist Soft Serve Freezer Model GES-103
2.4 Electrical Connections
CAUTION
To prevent accidental
electrical shock, a positive
earth ground is required.
Important!
A positive earth ground is required
for electronic VQM system to operate
correctly.
1. Double freezers with two compressors
require one power supply for each
side of the freezer. Each side of the
freezer operates independently.
2. Check the data plate for fuse
size, wire ampacity, and electrical
specications. (See Figure 3-2)
3. Refer to the wiring diagram provided
for proper power connections.
4. Electrical connections are made in
the junction boxes located mid-level
behind the right side panel.
Important
Set switch next to the connection
box “UP” for 220-230v or “DOWN”
for 208-219V. Failure to set switch to
proper voltage will cause damage to
the electrical components and will void
all warranties.
5. Use a exible connection when
permissible.
6. Beater Shaft Rotation Freezers are
designed for clockwise rotation when
viewed from front of freezer. 1ph
machines are prewired for proper
rotation. On 3 phase machines,
phase wires to freezer should be
connected to produce proper beater
rotation. This is to be done by a
freezer technician.
WARNING
Warning: When installing the machine,
insert an all pole disconnect, adequately
sized according to freezer nameplate
marking with electrical contact spacing of
3mm minimum. This should be within sight
of the freezer.
4 184560
Page 15
Twin Twist Soft Serve Freezer Model GES-103
3 Specifications
3.1 Particulars
Always check and verify voltage and amperage on the data plate
located on the back panel of each freezer.
GES-103
Width-in./cm 26.125/66.36
Height-in./cm 69.875/177.48
Depth-in./cm 38.25/97.16
Weight-lbs./kg 850/386
Compressor (2) 2.5 H.P. /19000 BTUH
2.2 kw (Motor)
3.2 kw (Cooling)
Compressor Cabinet (1) 1/6HP/1000BTUH
125w (Motor)
190w (Cooling)
Beater Motor (2) 2 H.P/1.5 kw
Refrigerant 404a
Charge* 3.75 lb/1.7 kg
Mix Capacity 6 - 5gal. Bags
Cylinder (2) 5 Qts./4.7 Liters
ACR
Noise: The Steady acoustic pressure level, for both air cooled
and water cooled freezers, is less than 70dB(A).
Water Cooled units: Water consumption increases if
temperature of entering water is above 20°C (65°F)
*Approximate for each side. See nameplate for actual charge.
184560 5
Page 16
Twin Twist Soft Serve Freezer Model GES-103
3.2 Dimensions
AIR IN
38.25"
The dimensions of the GES-103 are provided in Figure 3-1, below.
26.125"
66.36 cm
TOP OF UNIT MUST BE KEPT
CLEAR TO ALLOW AIR EXHAUST
166.37 cm
65.5"
97.16 cm
AIR OUT
ELECTRICAL
SERVICE
CONNECTION
69.875"
177.48 cm
IN OUT
1/2 FPT WATER IN/OUT
(WATER COOLED ONLY)
Figure 3-1
3.3 Data Plate
1 2
AIR IN
4.3125"
10.95 cm
ALL CONNECTIONS ARE MADE
THROUGH BOTTOM OF FREEZER
AIR IN
3
The data plate provides important
information that the operator should
record and have available for parts
ordering, warranty inquiries, and
service requests.
5
4
Figure 3-2 Data Plate
6 184560
Page 17
Twin Twist Soft Serve Freezer Model GES-103
3.4 Reference Information
Write in
Reference
Information HERE!
3.5 Installation Date
Installation Date_______________________
Installed by ___________________________
Address ___________________________
___________________________
Phone ___________________________
Fill in the following information below
as soon as you receive the GES-103.
(The item numbers—encircled, below—
correspond with the callout numbers
above.)
IMPORTANT: Complete for reference:
1.) Model Number: ________________
2.) Serial Number: ________________
3.) Electrical Spec: Voltage __________
Phase _______ Hertz ___________
4.) Maximum Fuse Size: ____________
5.) Minimum Circuit Ampacity: ________
3.6 WEEE (Waste Electrical and Electronic Equipment)
In conformity with EU 2002/96/EC,
this freezer, at the end of life cycle,
is not to be discarded with normal
urban waste. Instead, it is the user’s
responsibility to dispose of this product
by returning it to a collection point
designated for the recycling of electrical,
electronic components and separation
of reclaimable, recyclable materials.
Contact your local distributor or authority
for correct disposal.
3.7 Equipment Videos
To view videos on setting up and priming
the GES freezer visit:
http://www.electrofreeze.com/GES_Videos.aspx
184560 7
Page 18
Twin Twist Soft Serve Freezer Model GES-103
(VQM) Terminology
Beater Run: ...................... This D.O.B. timer used to delay the beater motor after
the refrigeration shuts down. Beater Run Range: 0 to 10
seconds
Demand Run Comp: ......... The D.O.B. timer used to delay the compressor when
product is being drawn. Demand Run Comp. Range: 0 to
12 seconds
Differential/ Hyst: .............. Symbolizes the differential setting. Differential range: 7 to
20°F i.e. if your cut in is at 18°F and your Differential is
at 10°F your unit will cut out at 8°F
Dual Diff: ........................... The differential used when product is being drawn out of
the center spigot. Dual Differential range: 7 to 20°F
Idle: ................................... When the unit is cycling on temperature and no product
is being dispensed
Idle Run Comp:................. Delay on break (D.O.B.) timer used for the compressor
when the unit is in idle mode/no product being drawn.
Idle Run Comp. Range: 0 to 20 seconds
4 Virtual Quality Management System
Lock outs: ......................... Allows the function of a specic feature/button to be
temporarily disabled to deter un-necessary usage of that
feature.
Main P.C. Board: ............... Main Control board for the unit, housed behind the trim
strip panel. This board has many connectors on it and is
responsible for the main operations of the unit.
Membrane Switch: ............ The black Electro Freeze decal visible on the front of the
unit, which houses the hidden operator, technician, soft,
and hard keys used to navigate the menus
Relay Board ...................... A control board located in the main electrical control box.
This Board contains no software, only solid state control
relays to operate system components.
Single Diff: ....................... The differential used when product is being drawn out of
one barrel. Single Hysteresis range: 7 to 20°F
8 184560
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Twin Twist Soft Serve Freezer Model GES-103
4 Virtual Quality Management System
(VQM) Terminology (continued)
Slope/Demand Slope: ...... Utilizes a function within the system to watch the
temperature change as the unit freezes a barrel. If utilizing
the slope feature and the unit sees a lack of temperature
change during freeze down, the unit will cycle off. This
will prevent a freeze up condition due to a long run time.
Demand Slope range: 0 to -0.2
Temp. Comp.: ................... Temperature compensation, utilized when the slope feature
is turned on. It prevents the system from seeing the
slope temperature curve until a determined temperature
is reached. Once that temperature has been reached
then the system will examine the curve and shut down if
necessary. Temp. Comp. Range: -10
to 22°F
Temperature Offset: .......... A function that allows temperature adjustment to the
operator. Adjustable from 1-9 and 5 being neutral/no
change, Lower than 5= colder and greater than 5=warmer
Transducer: ...................... An electronic control used to measure the cylinder
pressure for mix pump operation.
U.I./ User Interface: .......... The board that lies directly behind the membrane switch
on the front panel. This board houses the LED screen that
displays the menus and operations. The membrane switch
is connected to this board via a ribbon cable. This board
also has its own software.
184560 9
Page 20
Twin Twist Soft Serve Freezer Model GES-103
5 Part Names and Functions
Figure 5-1 Head Assembly
10 184560
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Twin Twist Soft Serve Freezer Model GES-103
5 Part Names and Functions (continued)
The following descriptions apply to gure 5-1. The number preceding the part
name corresponds to the number in the gure.
1.) HEAD:
Encloses the freezing cylinder and
provides an opening for product to be
dispensed. NOTE: Beater motors will
not operate with the head removed
from the freezer.
2.) SPIGOT - ASSEMBLY SIDE WITH
HANDLE (STAINLESS STEEL):
Seals the product opening in the head
when closed. Allows product to ow
when open.
3.) O-RING - SPIGOT:
Seals the spigot in the head. Must be
lubricated to seal and slide properly.
4.) O-RING - SPIGOT EXTENSION:
Holds the extension on to the spigot.
5.) ROD - SPIGOT:
Starts the freezer when dispensing.
Must be in place before freezer will
operate.
6.) KNOB-HAND:
Secures the head to the freezing
cylinder.
10.) PLUG-AIR BLEED (BLEEDER
ASSY.):
Seals the air bleed opening in the
head when closed. Allows excess
air to be removed from the cylinder
when priming.
11.) HANDLE-TAPERED BLACK
(PLASTIC):
Black plastic handle that ts onto
the stainless steel handle.
12.) SPIGOT-LONG CENTER
WITHOUT HANDLE (STAINLESS
STEEL):
Seals the product opening in the
dispense head when closed. Allows
product to ow when open.
13.) ROD-HANDLE CENTER SPIGOT
(STAINLESS STEEL):
Opens and closes the spigot to
start and stop the ow of product
from the freezer.
7.) EXTENSION - SPIGOT:
(ACCESSORY)
Extends the product opening down to
shape the product as it is dispensed.
8.) O-RING - HEAD:
Seals the head to the freezing
cylinder. Must be lubricated.
9.) O-RING-AIR BLEED PLUG:
Seals the air bleed plug in the head.
184560 11
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Twin Twist Soft Serve Freezer Model GES-103
5 Part Names and Functions (continued)
Figure 5-2 Beater Shaft Assembly
12 184560
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Twin Twist Soft Serve Freezer Model GES-103
5 Part Names and Functions (continued)
The following descriptions apply to gure 5-2. The number preceding the part
name corresponds to the number in the gure.
1.) BUSHING - CYLINDER:
Holds the beater in place at the front
of the cylinder.
2.) SHAFT - BEATER:
Rotates in the freezing cylinder,
blending air and mix as it ejects
product.
3.) BLADE - SCRAPER:
Scrapes the frozen product from the
freezing cylinder wall
4.) O-RING - SHAFT SEAL:
Seals the beater shaft to the shaft
seal. Is inserted into the shaft seal
washer. Must be lubricated.
5.) WASHER - SHAFT SEAL:
Holds the shaft seal o-ring. Lightly
lubricate the side opposite the cup
seal.
6.) SEAL(CUP) - BEATER SHAFT:
Seals the opening between the
freezing cylinder and the beater
shaft. Do not lubricate rubber cup
portion.
184560 13
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Twin Twist Soft Serve Freezer Model GES-103
AIR TUBE
RETAINER-AIR LINE
6
8
CLAMP-SOFT HOSE
9
PORT-AIR/MIX INLET
5 Part Names and Functions (continued)
15
HOSE-ASSY MIX BRAIDED
10
11
AIR METER
COVER-MTS
AIR CURTAIN
SWITCH
ARM-SWING CLAMP
SHOE-SPRING
KNOB-HAND
MIX DRAWER
20
5
18
4
19
7
MIX FLOW
MIX FLOW
MIX FLOW
MIX FLOW
MIX FLOW
11
COVER-MTS
HOSE-TRANSFER RED LINE
12
SUPPORT-ROLLER BEARING
1
ROLLER SHOE
2
ROLLER-ASSY COMPLETE
3
TUBE-MIX INLET
13
21
AIR CURTAIN
17
CLAMP-RATCHET
14
DUCKBILL-INLET
Figure 5-3 Mix Transfer System (MTS)
16
ADAPTER-MIX BAG
M02079rev4
14 184560
Page 25
Twin Twist Soft Serve Freezer Model GES-103
5 Part Names and Functions (continued)
The following descriptions apply to gure 5-3. The number preceding the part name
corresponds to the number in the gure.
1.) SUPPORT - ROLLER BEARING:
Holds roller assembly in place.
2.) SHOE - ROLLER:
Provides an opening to insert the
mix transfer hose. Squeezes transfer
hose against rollers.
3.) ROLLER ASSEMBLY COMPLETE:
Squeezes mix/air through tubing to
freezing cylinder.
4.) KNOB - HAND:
Locks roller shoe in position.
5.) ARM - SWING CLAMP:
Swings hand knob into position over
roller shoe.
6.) RETAINER - AIR TUBE:
Holds air meter tube in the “up”
position.
7.) AIR METER:
Regulates the amount of air being
drawn into the system.
13.) TUBE - ASSEMBLY MIX INLET:
Carries mix from mix container to
MTS.
14.) DUCKBILL:
A rubber check valve that prevents
mix from falling back into the mix
container.
15.) PORT - AIR/MIX:
Blends air and mix as it ows into the
transfer hose.
16.) ADAPTER - MIX BAG:
Connects the mix inlet tube to the
mix bag.
17.) CLAMP-HOSE RATCHET:
Plastic clamp for connecting bag
adapters to hose.
18.) SHOE - SPRING:
Holds clamp in place.
19.) MIX DRAWER:
Storage area for mix bags.
8.) TUBE - AIR:
Provides connection for the air
meter.
9.) CLAMP - ASSY. SOFT HOSE 5/8”:
Prevents mating parts from leaking.
10.) HOSE - ASSY. MIX BRAIDED:
Connecting tube between the Mix
Transfer System and the cylinder
inlet.
11.) COVER - MTS:
Protection against moving parts.
Cover must be in place for the MTS
to operate.
12.) HOSE - TRANSFER RED:
Special “red-lined” hose that is
squeezed by rollers to transfer mix to
freezer.
20.) AIR CURTAIN SWITCH:
Detects if air curtain is in position for
cleaning.
21.) AIR CURTAIN:
Located inside cabinet door. Used
when cleaning MTS pumps with mix
in shelves. Automatically refrigerates
cabinet when positioned in front of
shelves.
184560 15
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Twin Twist Soft Serve Freezer Model GES-103
L1
23
45 6789
10
2
4
L2 R1 R2
1
LEFT RIGHT
OFF
OFF
6 Operator Controls
Figure 6-1
The following paragraphs describe the
operator controls. Refer to Fig. 6-1 for
numbered items in description. Note the
left side controls operates the left side
cylinder and hopper. Operation for right
side controls is the same. The display
window has three levels of display:
CAUTION
Test operation of the head
switch prior to placing the
freezer in service. See Section
11, Routine Maintenance,
Monthly.
Operators Menu, Technician Menu, and
Factory Menu. The last two menus
are restricted and reserved for use by
qualied personnel.
To view videos on the GES freezer visit:
http://www.electrofreeze.com/GES_Videos.aspx
NOTE: The dispense head must be in
place before the freezer will operate.
IMPORTANT
DISPENSING HEAD MUST BE
INSTALLED FOR BEATER
MOTOR(S) TO OPERATE.
DO NOT INTERCHANGE HEADS
FROM OTHER FREEZERS.
1. Function Buttons (Four)
Pressing any of these buttons will activate the icon directly above in the display screen.
Left side (L1 & L2), Right Side (R1& R2).
2. OFF Key
When this symbol is pressed, the left side of unit will shut off. The beater motor and
compressor will not operate.
3. Navigation Pad (Up/Down = Cabinet ON/OFF)
Used to navigate the menu structure as well as turning the cabinet on/off.
UP Arrow - Energizes Cabinet refrigeration only when freezer is in OFF position.
DWN Arrow - De-energizes Cabinet refrigeration only when CAB Refrig is ON.
16 184560
See Troubleshooting section for Operator accessible controls.
4. Freeze Symbol
When this symbol is pressed, the unit will enter the automatic freeze mode. Both
the hopper and cylinder compressors will energize to refrigerate product to settings
in program. Use this button for DAY mode operation to maintain product in “ready
to serve” state.
Page 27
Twin Twist Soft Serve Freezer Model GES-103
6 Operator Controls (continued)
5. Left or Right side Control Indicator
Left indicates controls for left side cylinder and hopper. “Right” Indicates controls
for right side of freezer cylinder and hopper.
6. Mode of Operation Indicator
There are three primary modes of operation:
a. OFF –This is the indicator when power is applied to freezer and when
(OFF) button is pressed. In this mode, the refrigeration and beater motor
will not operate.
b. FRZ – This is the indicator when Freeze button is pressed. In this
mode, the freezer is in automatic freeze mode and both the beater motor
and refrigeration will activate as needed. Use this position for dispensing
product from freezer. Hopper will also be refrigerated as needed to
maintain product below 41°F.
Important: Do not use the freeze position with water or sanitizer
in the cylinder or hopper. The freezer will be damaged.
c. Night – This is the indicator when Night button is pressed. In this
mode, an energy-saving feature will activate and reduce product
refrigeration. The freezer will automatically cycle to maintain temperatures
in the cylinder and hopper below 41°F and keep product from deteriorating.
Use this position when the freezer will not be in use for periods of more
than one hour.
7. Wash or Clean Mode
Press the function button directly below icon to activate clean mode.
8. Information Window
This window is normally blank when unit is functioning properly. This window will
give you indication when mix in hopper is low and other error messages. Refer to
Troubleshooting Section of manual for details on error messages.
9. Night Mode Operation
As pictured, the Soft Key located below the image of the Moon will allow the
machine to be switched into NIGHT refrigeration mode. This feature is used at the
closing of the day’s business to hold the product at safe storage temperatures but not
in a frozen state.
10. Hidden Operator Menu Key
Press this key to enter the operator menu to adjust the freezers settings.
184560 17
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Twin Twist Soft Serve Freezer Model GES-103
L1
23
45 6789
10
2
4
L2 R1 R2
1
LEFT RIGHT
OFF
OFF
6 Operator Controls (continued)
12 Power Switch See Figure 6-3
In the “ON” position, power is supplied
to the beater motors. Use this position
to operate the freezer. Select the ”OFF”
position for disassembly and cleaning.
See Operators Display Menu for use of
this switch in recording cleaning cycles.
7 Operator Display Menus
Figure 6-3
Figure 7-1
To Enter the Operator Menu, push and hold the hidden key (11) under the F for 3 seconds
(gure 7-1).
Figure 7-2
The operator menu will show up on the screen (gure 7-2). The cursor will highlight the
selected sub-menu (i.e. Basic Setting, Actual Temps, etc.), use the Arrow Buttons to move
the cursor up or down to the desired sub-menu. Once the desired menu is highlighted, in
18 184560
this example we will use Basic Settings, press the select (
Product Type and Temperature Offset will be shown for left and right barrel. Use the Arrow
Buttons to move the cursor to highlight the value to be changed, once highlighted press the
select button and the cursor will now be blinking. While the cursor is blinking the value may
now be changed using the left or right Arrow Buttons, once you have reached the desired
setting press select (
the value change has been stored. Follow these steps to change any other desired settings,
once complete you may use the far right Function button to exit the operator menu or just wait
and the menu will time out and return to the Home screen.
) one more time, the cursor will now stop blinking, this indicates that
) button to enter the sub-menu.
Page 29
Twin Twist Soft Serve Freezer Model GES-103
7 Operator Display Menus (continued)
Below is a list of the menu categories that are displayed upon entering the
Operator’s menu.
Operator’s Menu Options
• Basic Settings
• Actual Temps
• Event Log
• Error Log
• Lockouts
• Screen Settings
• Date/Time
• Last Clean
• Software Version
The following information explains more about each of the menu options.
Basic Settings: Information Shown
Product Type: Alt 1 (Preset for DQ Product)
Temperature Offset 1-9 5 is Neutral
Cabinet Temp. 6 is Default setting
Actual Temps: Information Shown
Cabinet Temperature
Cylinder Temperature: Left or Right Cylinder
Event Log: Allows the operator to look at logged events i.e. power switch
cycle, low mix, etc. The log will display the last 50 events with
the newest event at the top.
Error Log: Allows the operator to look at logged errors i.e. Barrel
refrigeration timeout, low/high refrigeration pressure, etc. The
log will display the last 50 events with the newest event at the
top.
Statistics: Shows the number of starts that the compressor/compressors,
switches and beater motors have seen. Also displays the
cumulative run time in hours for compressors and beater
motors.
Information Shown
On Time Left & Right Barrel
Freeze Mode Left & Right Barrel
Standby Mode Left & Right Barrel
Off Left & Right Barrel
Last PWR Fail
All PWR Fail Time
All PWR Fails
Spigot Left & Right Barrel
184560 19
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Twin Twist Soft Serve Freezer Model GES-103
7 Operator Display Menus (continued)
Statistics Cont.
Center Spigot
Spigot Hours Left & Right Barrel
C Spigot Hours
Comp. Starts Left & Right Barrel
Comp. Hours Left & Right Barrel
Beater Starts Left & Right Barrel
Beater Hours Left & Right Barrel
Cab Comp. Starts
Cab Comp. Hours
Pump Starts Left & Right Barrel
Pump Hours Left & Right Barrel
Lockouts: Allows the operator to lock out the clean, freeze, and night
function so that on the home screen when the button is
pressed the unit will not react.
Information Shown
Freeze Mode Y or N
Clean Mode Y or N
Standby Mode Y or N
Cab Only Mode Y or N
Cones Left 5
Screen Settings: Operator can turn on or off the following functions:
Display Cabinet Temperature Y or N
(Will or will not display Cabinet temp. on home screen)
Alternate Moon Y or N
Beep Function Y or N
(unit will or will not beep when a button is pressed)
Hide Clock Error Y or N
Date/Time: Allows user to set the Real Time Clock and current date in the
unit.
Last Clean: Displays the Last time the unit has been cleaned
Software Versions: Has current software version numbers for both the U.I. and
Main board
Main ———
U.I. ————
Model GES
Cyl Count 2
Compressors 2
Hopper Y or N
Cabinet Y or N
Product Table GES or SLX
Cabinet Temperature Map for user adjustment. User will only see 1 through 9 but the
table below shows the differences with each number change. 6 is default setting
20 184560
Page 31
Twin Twist Soft Serve Freezer Model GES-103
7 Operator Display Menus (continued)
LEFT RIGHT
OFF
OFF
Press to start Left
Clean Mode
Press to start Right
Clean Mode
CABINET
ON
370F
LEFT RIGHT
OFF
OFF
CABINET
ON
370F
PUMP
ON OFF
PUMP
ON OFF
BEATER
ON OFF
BEATER
ON OFF
Press to turn left
beater on
Press to turn left
pump on
Press to turn right
beater on
Press to turn right
pump on
LEFT RIGHT
ON
ON
CABINET
ON
370F
Press to enter Night mode
Night Mode Operation
As pictured below, the Soft Key located below the image of the Moon will allow the machine
to be switched into NIGHT refrigeration mode. This feature is used at the closing of the
day’s business to hold the product at safe storage temperatures but not in a frozen state.
PLEASE NOTE: Dairy Queen allows the Night mode to be used for 72 Hours before
the machine MUST be disassembled and cleaned per instructions in this manual.
During the use of the NIGHT mode, the computer will monitor the system and maintain
a mix holding temperature of 36°F (2.2°C) or below. The beater will cycle throughout this
mode to maintain product circulation through the dispensing head.
184560 21
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Twin Twist Soft Serve Freezer Model GES-103
8 Disassembly and Cleaning
Safety Information
This freezer uses pressure to assure
consistent product quality. It is important
for your safety that the freezer is
depressurized slowly and completely
whenever the freezer is to be drained,
disassembled, cleaned, or serviced. The
safety instructions in this manual will
remind you when to check to make sure
the freezer is depressurized. When you
see this CAUTION statement
CAUTION
Make sure freezer is
depressurized before
proceeding.
the following steps should be taken:
1. Using the buttons L2 & R2 on the
control panel be sure both MTS
pumps are in the “OFF” position.
2. Turn the control pad “OFF” and then
Following these steps will assure that the
system is depressurized.
It is important that the freezer
be disassembled, washed,
lubricated and sanitized before
operation.
The cleaning and sanitizing instructions
explained in this manual are required to
maintain a clean, sanitary freezer. The
freezer should be disassembled, cleaned,
reassembled, lubricated and sanitized
daily to ensure the best possible product
quality and freezer operation.
Persons assembling, cleaning or
sanitizing the freezer must rst wash
and sanitize hands and forearms with an
approved sanitizer.
CAUTION
To avoid electrical shock or
contact with moving parts,
make sure the control pad
is “OFF” and that the main
power switch is “OFF”.
turn “OFF” the main power switch.
3. Place a clean bucket under the
dispense head.
4. Slowly open the spigots, allowing any
pressurized cleaning solution or air
to escape. If there is product in the
freezer refer to Section 11, Closing
Procedures, 11-1 Draining Product.
5. Remove the spigot switch rods and
open the spigots completely.
6. Inside the refrigerated cabinet,
remove the MTS cover, loosen the
shoe clamp hand knob, swing back
the shoe clamp and swing open
the roller shoe on both mix transfer
systems.
22 184560
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Twin Twist Soft Serve Freezer Model GES-103
8.1 Cleaning Accessories
The following accessories are necessary for cleaning, sanitizing, and disassembly/
assembly (Figure 8-1):
1. HC158009 Brush & HC158012
6. HC169374 Tool - O-ring Removal:
HANDLE: 4 inch diameter and 27
inch handle used to clean the shake
cylinder.
7. HC158054A Lubricant - LUBRI-FILM
2. HC158019 Brush: 9/16 inch
diameter 40 inch overall length used
to clean drain tube, the mix feed tube
in the ceiling of the cabinet and the
8. HC196103 Bottle, Wash: Used to
pickup tube.
3. HC158018 Brush: 7/16 inch diameter
12 inch overall length used to clean
9. HC115538 Kit - O-ring: Contains
transfer hose, braided hose, and the
air relief opening in the dispense
head.
4. HC158026 Brush: 1 inch diameter
12 inches long used to clean the
disassembled shaft seal and bushing.
5. HC158037 BRUSH: 1/4 inch diameter
18-1/2 inches overall length used to
clean the air meter hose, the small
hole in the back of the dispense head
and small parts.
To view videos on the GES freezer visit:
http://www.electrofreeze.com/GES_Videos.aspx
Aids in removing o-rings from plunger,
head, air relief plug, and spindle.
PLUS: Approved lubricant for moving
parts and o-rings.
ush the hose cavity, roller assembly
and plunger.
all o-rings and seals needing
replacement on a regular basis. (not
shown)
1
HC158009 BRUSH - 4” DIA x 31.5”
& HC158012 HANDLE
2
HC158019 BRUSH -9/16” DIA x 40” OAL
HC158018 BRUSH -7/16” DIA x 12” OAL
3
4
HC158026 BRUSH -1” DIA x 12” LG.
HC169374 TOOL -O RING
6
REMOVAL
HC158037 BRUSH -1/4” DIA x 18-1/2” LG.
5
HC158054A
7
LUBRICANTLUBRI-FILM
PLUS
8
HC196103 BOTTLEWASH 500ml
(OPTIONAL)
Figure 8-1 Cleaning Accessories
184560 23
Page 34
Twin Twist Soft Serve Freezer Model GES-103
8.2 Disassembly Instructions
CUP SEAL
WASHER
O-RING
Figure 8-3 Shaft seal
Figure 8-2
Your freezer is designed for cleaning
MTS pumps with or without Cabinet
refrigeration. Use the Cabinet
refrigeration if the mix bags will not be
CAUTION
Make sure freezer is
depressurized before
proceeding.
removed from shelves during cleaning.
These instructions will provide steps and
notations for:
Cleaning with Mix Stored in drawers If cabinet is clean and has no mix spills,
perform these functions
CAUTION
To prevent bacteria growth,
remove ALL o-rings when
disassembling for cleaning.
Failure to do so could create a
health hazard.
Cleaning with Mix Stored in remote
Cooler - If mix has been splashed/spilled
on shelf and on Cabinet walls, perform
these functions.
1. If there is product in the freezer, refer
to Sec. 9 Closing Procedures, 9.1
Draining Product. Take the following
items to the cleaning sink
CAUTION
To avoid electrical shock or
contact with moving parts,
make sure all controls are in
the “OFF” position and that the
main power switch is turned
“OFF”. Some freezers have
more than one disconnect
switch.
2. (See gure 8-2.) Remove the spigot
rods (5) by lifting up out. Remove
the hand knobs (6) and pull the
dispensing head (1) straight out.
3. Remove the cylinder bushings and
beater shafts from the cylinders.
4. Remove the scraper blades and shaft
seals from the beater shafts. Remove
—continued
To view videos on the GES freezer visit: http://www.electrofreeze.com/GES_Videos.aspx
24 184560
Page 35
Twin Twist Soft Serve Freezer Model GES-103
8.2 Disassembly Instructions (continued)
the drip tray and drip tray insert.
5. (See gure 8-3.) Remove the cup
seals and o-rings from the plastic
washers on the shaft seal assemblies.
6. Remove the spigot assemblies, air
bleed plugs, and o-rings from the
head and spigot assemblies.
7. Cleaning with Mix Stored on Shelf
Insure air curtain is installed for
Cabinet Refrigeration (gure 8-6).
Cleaning with mix stored in remote
cooler - Move mix to cooler, remove
shelves and move them to cleaning
sink.
8. Remove the MTS hose assemblies
form the Mix Transfer Systems as
follows (gure 8-4):
a. remove cover,
b. loosen the hand knob,
c. swing back the shoe clamp,
d. swing open the roller shoe,
e.
loosen the clamp on braided hose,
f. remove duckbill in mix adapter,
keep adapter in bucket.
g. Slide hose assembly out of
roller support housing, this will allow
water in tube to drain into bucket.
9. Disassembly MTS hose assemblies
B
C
HOSE REMOVAL INSTRUCTIONS
Figure 8-4 MTS
pull tube off cylinder inlet and slide
hose assembly out of roller support
housing.
as shown in gure 8-5, and take to
cleaning sink.
A
E
A)
LOOSEN KNOB
B)
SWING BACK SHOE CLAMP
C)
SWING OPEN ROLLER SHOE
D)
LOOSEN CLAMP
E)
PULL TUBE OFF CYLINDER INLET AND REMOVE
D
E
ABC
Figure 8-5 MTS Hose Assembly
184560 25
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Twin Twist Soft Serve Freezer Model GES-103
8.3 Cleaning Instructions
CAUTION
Electrical shock hazard. Do
not splash water on switches
or allow water to ow onto
electrical components inside
the machine.
To prevent bacteria growth,
remove all O-rings when
cleaning. Failure to do so
could create a health hazard.
CAUTION
NOTE: It is your responsibility to
be aware of, and conform to, the
requirements for meeting federal, state,
and local laws concerning the frequency
of cleaning and sanitizing the freezer.
1. Prepare a three compartment sink
for washing, rinsing, and sanitizing
parts removed from the freezer, per
applicable health codes. Also prepare
a clean surface to air dry all parts.
Important:
Do not use unapproved sanitizer
or laundry bleach. These materials
may contain high concentrations of
chlorine and will chemically attack
freezer components.
NOTE: The sanitizer should be mixed
according to the manufacturer’s
instructions to yield 100 PPM available
chlorine solution (example: Stera-Sheen
Green Label). Use warm water (100°110°F or 38°-43°C) to wash, rinse, and
sanitize.
2. Wash all the parts removed from the
freezer thoroughly with dish detergent
soap. Clean the following parts with
the appropriate supplied brush:
Figure 8-6
Figure 8-7
a. the MTS connector, bag adapter
and hoses
b. the head spigot openings, center
spigot ports, o-ring grooves, dispense
nozzle mounting rings, and mix ports,
as shown in gure 8-7.
—continued
SEAL
SPIGOT O-RING
GROOVES
WASHER
SPIGOT OPENING
Figure 8-8
To view videos on the GES freezer visit: http://www.electrofreeze.com/GES_Videos.aspx
26 184560
Page 37
Twin Twist Soft Serve Freezer Model GES-103
8.3 Cleaning Instructions (continued)
Figure 8-9 Scraper Blade pin holes
c. the spigot o-ring grooves, nozzles,
the shaft cup seals, plastic washers
and o-rings as shown in gure 8-8.
d. the air bleed plug o-ring grooves
e. the beater shaft and the scraper
blade pin holes, as shown in gure
8-9.
Important:
Do not leave parts in sanitizer for
longer than 15 minutes.
3. After all parts are washed and, rinsed,
place them in the sanitizing solution.
For proper sanitizing, the parts must
remain fully immersed in the sanitizer
for 5 minutes. Allow the parts to airdry after sanitizing.
4. The following must be thoroughly
brushed rst with a warm dish
detergent solution, then rinsed with
clear water followed by the sanitizing
solution.
Figure 8-10 Clean Cylinders
a. mix feed tubes from the refrigerated
cabinet to the cylinders as shown in
gure 8-11
b. the inside of the cylinders including
the back wall as shown in gure 8-10.
c. the inside of the drain tube as
shown in gure 8-11.
.
Figure 8-11 Brush inside of cylinder mix feed tubes
184560 27
Page 38
Twin Twist Soft Serve Freezer Model GES-103
8.3 Cleaning Instructions (continued)
5. Remove the drip tray and insert. Wash
in a warm dish detergent solution
rinse with clear water and place in
sanitizing solution for 5 minutes.
6. Cleaning with Mix Stored in remote
Cooler - Wash the inside of cabinet
walls with a warm dish detergent
solution. Rinse with clear water. The
slides can be removed for cleaning
by tilting the bottom out and lifting
straight up (gure 8-13) . Do this with
the slide in retracted position (not
extended). Bearing mounted on wall
should just be wiped down.
IMPORTANT: Clean drawers with warm
dish detergent and rinse with clear
water. DO NOT immerse drawers in
water or put in dishwasher, drawers
should be wiped down as needed with
sanitizing solution.
Figure 8-12 Clean Drain Tube
Replace worn brushes.
Use only original or authorized
replacement parts.
See Accessories Parts List in
Part II of this manual to order
new brushes.
NOTE: Slide rails are LT/RT side
position sensitive. Look for marking
to identify slide when part is
reassembled.
Figure 8-13 Slide Removal
To view videos on the GES freezer visit: http://www.electrofreeze.com/GES_Videos.aspx
28 184560
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Twin Twist Soft Serve Freezer Model GES-103
8.3.1 Cleaning and Lubricating - MTS Assembly
M02082
NOTE: Clean the shoe weekly or
when necessary. Do not interchange the
shoe with any other MTS shoes.
NOTE: It is recommended this procedure
is done when the cabinet is empty of mix.
1. Remove the o-rings and slide the
shoe off of the pivot arm and the
swing clamp off of the clamp arm.
See gure 8-11.
2. Carry to the sink, wash in mild
detergent with the brush provided and
dry thoroughly.
3. Brush in between rollers. Flush clean
with water bottle.
RIGHT SIDE SHOWN
LEFT SIDE THE SAME EXCEPT MIRRORED
Important:
Do not let shoe sit in sanitizing
solution or water. Corrosion will occur
in bore.
4. Lubricate the shoe pivot arm and the
swing clamp arm with food grade
lubricant such as Petrol-Gel.
5. Reassemble the shoe and o-ring on
pivot arm.
6. Reassemble the shoe swing clamp
and o-ring on the swing clamp arm.
LUBRICATE WITH FOOD
GRADE LUBRICANT
SWING CLAMP ARM
SHOE SWING CLAMP
O-RING
WASHER
KNOB
Figure 8-14
O-RING
PRESSURE RELIEF SPRING
ROLLER SHOE
BRUSH BETWEEN ROLLERS
LUBRICATE WITH FOOD
GRADE LUBRICANT
SHOE PIVOT ARM
184560 29
Page 40
Twin Twist Soft Serve Freezer Model GES-103
DO NOT
9 Assembly
CAUTION
To avoid electrical shock or
contact with moving parts,
make sure the control pad is
in the “OFF” position and the
main power switch is off.
LUBRICATE
CUP SEAL
LUBRICATE
LUBRICATE
O-RING
Three Piece Shaft Seal
Figure 9-1 Shaft Seals
WASHER
CUP SEAL
Correct assembly of the freezer is
essential to prevent leakage of the
product and damage to the freezer. You
will need an approved lubricant (such as
Lubri-Film Plus). Make sure all parts of
the assemblies have been cleaned and
sanitized before assembling. Persons
assembling the freezer must rst wash
and sanitize their hands and forearms
with an approved sanitizer.
1. Install the cup seal and o-ring on
the washer (see gure 9-1). Apply
a light amount of approved sanitary
lubricant (such as Lubri-Film Plus) to
the o-ring and the face of the plastic
washer opposite the bell portion of
the seal. Do not allow any lubricant to
come into contact with the bell shaped
rubber portion of the seal.
2. Install the shaft seals over the rear of
the beater shafts. If using the three
piece shaft seal the bell-shaped
portion will be facing the rear of the
freezer (see gure 9-2). Remove
excess lubricant from the drive end of
the beater shaft.
3. Place the scraper blades on the
beater shafts, making sure the blades
are installed properly. Proper blade
installation is with at side against
cylinder wall. (See gure 9-3.)
—continued
PROPER BLADE
INSTALLATION
IS WITH FLAT
SIDE AGAINST
CYLINDER WALL.
Figure 9-3
Figure 9-2 Beater Shaft Assemblies
To view videos on the GES freezer visit: http://www.electrofreeze.com/GES_Videos.aspx
30 184560
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Twin Twist Soft Serve Freezer Model GES-103
9 Assembly (continued)
Figure 9-4 Head Assembly
4. Insert the assembled beater shaft into
the cylinder by placing the rear blade
on the bottom of the cylinder. This will
center the beater and allow alignment
with the drive coupling. Slide beater
shaft into cylinder until shaft engages
drive coupling. Repeat for second
cylinder assembly.
5. Lubricate the inside surface of the
cylinder bushings and place on the
end of the beater shaft assemblies.
The bushings will slide on only one
way.
6. See gure 9-4. Install and lubricate
the o-rings (3) (see o-ring chart, last
page) on the dispensing spigots
(2,12) and insert the spigots into the
head (1). Check by turning the spigots
side to side, making sure they move
freely.
7. Place the extension or holding o-ring
(4) onto the spigots. Do not lubricate
this o-ring.
8. Install and lubricate the 4” head
o-rings(8).
9. Install and lubricate the o-rings (9)
on the air bleed plugs (10). Insert the
plugs in the head assemblies (1).
10. Install the dispensing head onto the
freezer by aligning the studs with the
holes in the head and sliding toward
the freezer. Finger-tighten the hand
knobs evenly.
Important:
Excessive force will damage the head.
Do not use tools to tighten.
—continued
184560 31
Page 42
Twin Twist Soft Serve Freezer Model GES-103
9 Assembly (continued)
Important:
Always make sure the head bushing
is positioned on the beater shaft
properly. Operating the freezer with
a missing or badly worn bushing will
damage the beater and cylinder.
11. Install the spigot rods (5). For yogurt
mixes, install the nozzles on the mix
outlet at the bottom of the spigots
before sanitizing.
Important:
Always inspect the transfer hose
during assembly for wear. Do not use
tools or sharp objects to remove hose.
Important:
Use original H. C. Duke transfer hose
only. Your freezer will not operate
properly with any other type of hose.
Never twist the transfer hose when
assembling or installing.
Important:
Replace transfer hose every 30 days.
12. Assemble the MTS hose assembly
as shown in gures 9-5. The transfer
hose has a red locating line. With
the red locating line up, slide the mix
transfer hose onto the port and align
red line to arrow on connector. Then
slide a clamp over the hose to secure
it to the port. Insert 90° elbow into
transfer hose and align so elbow is
45° up from work surface, slide clamp
in position. Finger tighten only! The
thumbscrew must lie parallel to the
mix/air inlet port.
14. Insert the duckbill valve into the
bottom of the bag adapter. Push until
the two ribs are completely inserted.
15. Refer to gure 9-6. Install the MTS
hose assembly by rst placing the
clamp next to the braided hose, above
the roller bearing support on the right
side and push hose into slot. Place
the transfer hose under the rollers.
While holding the bag adapter stretch
the hose around the roller bearing
support and push the hose into the
slot.
—continued
Figure 9-5 MTS Hose Assembly
To view videos on the GES freezer visit: http://www.electrofreeze.com/GES_Videos.aspx
32 184560
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Twin Twist Soft Serve Freezer Model GES-103
9 Assembly (continued)
Important:
Do not twist the hose assembly while
installing.
16. Check to ensure the transfer hose
is straight and centered on the roller
assembly by observing the locating
line. The line should be in the same
position at the inlet and outlet guides
of the roller bearing support, as shown
in gure 9-6.
17. Swing the shoe over hose and tighten
the swing clamp hand knob in place.
18. Insert the air tube into the retainer in
the top of the cabinet.
19. Insert sensor probe in to top cab wall
and mix inlet housing.
20. Insert the MTS cover over stud. Hose
clamps should be exposed. Tighten
cover knob. Hand tighten only.
21. Loop the braided hose towards you
and slide the hose over the cylinder
inlet tube. Tighten the clamp. Make
sure the braided hose is not twisting
transfer hose.
Important:
The MTS will not operate unless the
cover is installed and secured by the
hand knob.
AIR METER
11
COVER-MTS
AIR CURTAIN
SWITCH
ARM-SWING CLAMP
SHOE-SPRING
KNOB-HAND
MIX DRAWER
AIR TUBE
20
18
19
RETAINER-AIR LINE
8
7
5
4
6
CLAMP-SOFT HOSE
9
MIX FLOW
PORT-AIR/MIX INLET
15
MIX FLOW
MIX FLOW
MIX FLOW
HOSE-ASSY MIX BRAIDED
MIX FLOW
10
11
COVER-MTS
HOSE-TRANSFER RED LINE
12
SUPPORT-ROLLER BEARING
1
ROLLER SHOE
2
ROLLER-ASSY COMPLETE
3
TUBE-MIX INLET
13
17
CLAMP-RATCHET
14
DUCKBILL-INLET
16
ADAPTER-MIX BAG
M02079rev4
Figure 9-6 MTS
184560 33
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Twin Twist Soft Serve Freezer Model GES-103
10 Start-up Instructions
10.1 Sanitizing
CAUTION
Mix Transfer System will be
pressurized during operation.
Make sure all components and
fasteners are secure before
start-up.
The washing and sanitizing instructions
explained in this manual are important
procedures to remove bacteria and
maintain a clean, sanitary freezer. IDQ
requires the soft serve freezer to be
disassembled, washed, and sanitized
daily according to the instructions in
the manual. Always sanitize prior to
assembling to ensure the best possible
cleanliness.
CAUTION
To prevent bacteria growth,
use only approved sanitizers to
sanitize the machine. Sanitizing
must be done just prior to
starting the machine. Failure
to do so could create a health
hazard.
IMPORTANT:
Do not use unapproved sanitizers
or laundry bleach. These materials
may contain high concentrations of
chlorine and will chemically attack
freezer components.
NOTE: It is your responsibility to be
aware of and conform to the requirements
for meeting federal, state, and local laws
concerning the frequency of cleaning and
sanitizing the freezer.
1. Prepare 2 gallons (7.5 liters) of
sanitizing solution for each cylinder.
Sanitizing solution must be mixed
according to manufacturer’s
instructions to yield 100 PPM strength
chlorine solution (example: SteraSheen Green Label). Use warm water
(100° to 110°F or 37° to 43°C) to
wash, rinse, and sanitize.
2. Wash and sanitize your hands and
forearms.
3. Sanitizing with mix stored in
drawers. Insure stainless air curtain
is installed in front of bag storage area
to keep it cooling (gure 10-1).
Important:
Never let the sanitizer remain in the
freezer for more than 15 minutes.
4. Fill a bucket with sanitizer solution
and immerse the pickup tubes into
the sanitizer solution and sanitize the
outside portion. Be sure all adapters
and items that will come in contact
with mix are sanitized.
5. Place an empty container under the
dispensing head.
6. Open the air bleed plugs by pulling up
until the plugs touch the bottom of the
switch box.
7. Turn on the main power switch to the
freezer. The spigots must be closed.
Using the control panel press the L2 &
R2 keys to turn the MTS pumps “ON”.
Figure 10-1
This will push the sanitizer up into the
cylinders.
—continued
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34 184560
Page 45
Twin Twist Soft Serve Freezer Model GES-103
10.1 Sanitizing (continued)
8. When sanitizer ows out the bottom of
the head, close the air bleed plugs.
DO NOT use the “FREEZE” setting
with sanitizer in the cylinder. The
freezer will be damaged.
Important:
11. Leaving the spigots open, press L1 &
R1 keys to turn the beaters “OFF” and
let the MTS force all possible sanitizer
out of the freezing cylinders.
NOTE: Some sanitizer will remain in
hoses and cylinder.
9. Using the control pad press the L1 &
R1 keys to turn the beaters “ON” and
allow the beaters to run for 5 minutes.
At this time check for leaks around the
head, drain tube, clamps, and MTS.
10. Drain the solution from the cylinders
by slowly turning the spigot handles
open. Allow MTS to pump all sanitizer
from bucket.
10.2 Priming
Priming the freezer removes all excess air and sanitizer from the freezing cylinder
and sets the proper overrun for the rst cylinder of product.
1. Wash and sanitize your hands and
forearms.
2a. Cleaning with Mix Stored in
drawers.
Store the air
curtain on studs
inside of the CAB
door.
12. Press L2 & R2 keys to turn the MTS
pumps “OFF”.
13. Without touching the bag adapters
end, place mix pickup tube in bridal
ring on CAB door.
IMPORTANT:
This machine is not intended to
process mixes containing abrasive
materials. Sold particles that do not
dissolve in water may cause premature
wear on components and void the
manufacturer’s warranty.
7. Pull up the air bleed plugs
8. Open the side spigots.
—continued
RETAINER-AIR LINE
AIR TUBE
8
AIR METER
11
COVER-MTS
7
6
CLAMP-SOFT HOSE
9
PORT-AIR/MIX INLET
15
HOSE-ASSY MIX BRAIDED
10
11
COVER-MTS
2b. Cleaning with
Mix Stored in
remote Cooler
Install shelves
and bags of mix in
cabinet.
3. Connect the bag
adapters of the
mix pickups tube
to the mix bags.
AIR CURTAIN
SWITCH
ARM-SWING CLAMP
SHOE-SPRING
KNOB-HAND
MIX DRAWER
MIX FLOW
20
5
18
4
19
MIX FLOW
MIX FLOW
MIX FLOW
MIX FLOW
HOSE-TRANSFER RED LINE
12
SUPPORT-ROLLER BEARING
1
ROLLER SHOE
2
ROLLER-ASSY COMPLETE
3
TUBE-MIX INLET
13
4. Tuck excess inlet
hose in shelf of
mix being used.
5. Close the cabinet
door.
6. Place an empty
17
CLAMP-RATCHET
14
DUCKBILL-INLET
16
ADAPTER-MIX BAG
container under
the dispense head
on the drip tray.
184560 35
Figure 10-1
M02079rev4
Page 46
Twin Twist Soft Serve Freezer Model GES-103
10.2 Priming (continued)
9. Press L2 & R2 keys to turn the MTS
pumps “ON” allowing the mix to push
the remaining sanitizer from the
freezer.
10. Close the spigots one at a time when
pure mix is coming out.
Important:
Failure to completely remove
sanitizer or water from the freezing
cylinder before placing in “FREEZE”
will cause the scraper blades to break
and damage the freezer.
10.3 Dispensing Product
11. Allow the MTS to ll the cylinder until
mix ows from the bottom of the air
bleed plug openings in the bottom of
the dispense head, close the air bleed
plugs. Wait for the MTS to ll the
cylinders and shut off.
12. After the cylinders are pressurized
and the MTS has cycled off
(approximately 30 seconds) Press the
left and right “Freeze” keys.
13. Allow the freezer to cycle for 15-20
minutes. The product is now ready to
serve.
1. To dispense product, grasp the spigot
handle, hold the container which is to
be lled with product below the spigot,
and slowly open the spigot until
product is dispensed at a comfortable
rate.
2. When the proper portion has been
dispensed, close the spigot.
3. The freezer will continue to run a
short time (approximately 12 seconds)
following the dispensing of the
product. If a large portion has just
been dispensed, a longer period of
time may be required for the freezer
to shut off.
4. If the freezer has not been used for
more than two and a half minutes,
and the product requires a rm base,
then dispense a small amount of mix
in the spigot into a separate container.
NOTE: For shakes, large sundaes, oats
and other similar products, this practice
of drawing off a small amount into a
separate container is not necessary and
should be discouraged.
5. Observe the level of mix throughout
the day to avoid running out of
product in the mix containers or bags.
6. Periodically check the temperature
and overrun of product and make sure
it is within the specied limits.
IMPORTANT:
If proper mix level is not maintained,
a freeze-up may occur and cause
damage to the freezer.
CAUTION
THE DISPENSING HANDLE
MUST BE COMPLETELY
CLOSED AFTER EACH DRAW.
FAILURE TO CLOSE THIS
HANDLE WILL ENGAGE THE
REFRIGERATION SYSTEM
CAUSING A FREEZE UP AND
DAMAGE TO BELTS, GEAR
REDUCER, AND MOTORS
COULD OCCUR.
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36 184560
Page 47
Twin Twist Soft Serve Freezer Model GES-103
11 Closing Procedures
11.1 Draining Product
At the end of each day of operation, the freezer must be rinsed, sanitized, and
disassembled. The parts also must be washed, rinsed, sanitized, and prepared for
reassembly.
Your freezer is designed for cleaning
MTS pumps with or without Cabinet
refrigeration. Use the Cabinet
refrigeration if the mix bags will not be
removed from shelves during cleaning.
These instructions will provide steps and
notations for:
Cleaning with Mix Stored in drawers -
If cabinet is clean and has no mix spills,
perform these functions
Cleaning with Mix Stored in remote
Cooler - If mix has been splashed/spilled
on shelf and on Cabinet walls, perform
these functions.
To remove frozen product from the
cylinder
1. Press the L1 & R1 keys to enter
“CLEAN” mode.
11
AIR TUBE
AIR METER
COVER-MTS
RETAINER-AIR LINE
8
7
6
CLAMP-SOFT HOSE
9
PORT-AIR/MIX INLET
15
2. Cleaning with Mix Stored in drawers
Press UP Arrow to engage Cabinet
Refrigeration
3. In “CLEAN” mode, press L1 & R1 to
turn the beaters ON. Disconnect the
mix senor leads from top of Cabinet
4. Let the beaters run for 5 minutes.
This will allow the product in the
cylinders to soften.
4a. Cleaning with Mix Stored in
drawers
Install stainless air curtain, stored
on CAB door, in front of shelves in
slots provided. This will maintain
refrigerated air to mix while main CAB
door is open. See Figure 11-2 for
installed view.
HOSE-ASSY MIX BRAIDED
10
11
— continued
COVER-MTS
MIX FLOW
AIR CURTAIN
SWITCH
ARM-SWING CLAMP
SHOE-SPRING
KNOB-HAND
MIX DRAWER
Figure 11-1
20
18
19
MIX FLOW
5
MIX FLOW
4
17
CLAMP-RATCHET
DUCKBILL-INLET
14
MIX FLOW
MIX FLOW
16
ADAPTER-MIX BAG
HOSE-TRANSFER RED LINE
12
SUPPORT-ROLLER BEARING
1
ROLLER SHOE
2
ROLLER-ASSY COMPLETE
3
TUBE-MIX INLET
13
M02079rev4
184560 37
Page 48
Twin Twist Soft Serve Freezer Model GES-103
11.1 Draining Product (continued)
4b) Cleaning with Mix Stored in
remote Cooler Pull out shelf, transfer
all bags to remote cooler for storage.
Mix must be handled according to
local health codes.
13. Insert the bag adapters into the
sanitizing solution.
14. Place an empty container under the
dispense heads.
5. In the cabinet, disconnect bag adapter
from bag and place in clean rinse
bucket. With a clean bag cap, cap
unused mix in bag.
6. Place a clean sanitized container
under the dispensing head.
7. Very slowly open the side spigots and
dispense the semi-frozen product until
it quits dispensing. To eliminate waste,
dispense as much as possible for use
in pints, quarts, and/or novelties.
CAUTION
Make sure the freezer
is depressurized before
proceeding.
8. Close spigots. Press L2 & R2 to turn
the MTS pumps “OFF”.
9. Fill rinse container with mix pickup
tubes with cold water. Press L2 & R2
and turn the MTS pumps “ON” and
allow the MTS to ll and pressurize
the cylinders.
Note: If beater motors run more than
5 min, they will automatically turn off to
prevent excessive wear. Press L1 & R1 to
turn beater on for cleaning.
10. Very slowly open the spigots and
dispense the cold water. Open air
bleed while relling/ Follow with a
container of warm water and repeat
until the dispensed water is clear.
Drain remaining water from the
cylinders.
15. Pull the air bleed plugs up until they
touch the bottom of the switch box.
Open the spigots.
16. Press L2 & R2 to turn the MTS pumps
“ON”. When sanitizer ows out the
bottom of the head, close the air bleed
plugs and allow the MTS to pressurize
the cylinders.
17. Press L1 & R1 to turn the beaters
“ON” and allow them to agitate for 5
minutes.
IMPORTANT:
Do NOT use the “FREEZE” position
with sanitizer or water in the cylinder.
The freezer will be damaged.
18. Slowly open the spigots and allow the
MTS to pump all of the sanitizer out of
the bucket. Leaving the spigots open
press L1 & R1 to turn the beaters
“OFF”. Leave the MTS pumps “ON”
and allow the pumps to force all
remaining sanitizer from the cylinders.
When sanitizer quits owing, place
the MTS pump to “OFF” position.
19. Refer to Disassembly and Cleaning
Instructions.
11. Press L2 & R2 to turn the beaters and
MTS pumps “OFF”. Close the spigots
12. Prepare 2 gallons (7.5 liters) of
sanitizing solution for each cylinder.
Sanitizing solution must be mixed
according to manufacturer’s
instructions to yield 100PPM available
chlorine solution (example: SteraSheen Green Label). Use warm water
(100° to 110°F or 37° to 43°C).
38 184560
Figure 11-2
Page 49
Twin Twist Soft Serve Freezer Model GES-103
11.2 Night Switch Operation
LEFT RIGHT
ON
ON
CABINET
ON
370F
Press to enter Night mode
1. In areas where health codes will allow,
the freezer may be switched to night
mode operation. This will allow the
freezer to cycle all night and maintain
approximately 36°F (2.2°C) product in
the cylinders and cabinet.
2. To switch the freezer to Night mode,
press the Soft key located below the
image of the Moon on the display.
(Pictured Below)
3. Remove any spigot extensions
and spigot extension o-rings that
might be installed, remove the drip
tray assembly and clean all soiled
surfaces with soap and water. Fill
the wash bottle (HC196103) with
approved sanitizing solution, using
the wash bottle and a brush clean the
spigots and openings.
4. Repeat step 3 prior to putting the
machine back into day mode for the
days use.
NOTICE
The “night” mode operation is not
to be used in lieu of proper cleaning
and sanitization procedures at the
frequencies required by the federal,
state, or local regulatory agency.
Figure 11-3
184560 39
Page 50
Twin Twist Soft Serve Freezer Model GES-103
12 General Information
12.1 Dairy Queen® Mix
1. Standard approved Dairy Queen® mix
weight is approximately 9.25 lbs. per
gallon (1.1 kilograms per liter).
2. The mix, when delivered, should be:
a. at a temperature of no more than
40°F (4°C).
b. displaying no separation such as
clear or semi-clear liquid layer on top.
c. nearly free of foam in a freshly
opened container.
3. Mix should be used within seven days
from the date of delivery and should
not be over seven days old when
delivered.
4. Store mix at a temperature of 35° to
38°F (2º to 3°C).
5. Check both the taste and smell of the
6. The mix container must be identied
7. The mix used to produce Dairy
Report any mix problems to the mix
supplier. If the problem persists, contact
IDQ Food Products Department.
12.2 Checking the Frozen DQ® Product
Two measurements of product
consistency are temperature and
overrun. Several observations can
be made by looking at and tasting the
product, but actual measurement of
temperature and overrun provides precise
information concerning the condition
of the product being served and the
operation of the freezer and the mix
transfer system.
Standard Dairy Queen® product should be
between 17° and 19°F (-8° and -7°C). It
should have an overrun of 40 to 45%. Its
appearance should be “dry” and appear
much like silk. If the product appears
“wet” or “slick” then it is usually an
indication that the temperature is too high.
If the product appears pockmarked and
soft, it may be an indication of too much
overrun. If the product appears grainy
and hard, it is an indication of either too
low overrun or too low temperature. In
any of the above cases, always measure
temperature and overrun to see if they fall
into normal operating ranges.
mix, and thoroughly stir or agitate the
mix prior to use. Be sure any stirring
device is properly sanitized before
coming in contact with the mix.
by a tag or label which states that
it is Dairy Queen® mix and a code
identifying its age.
Queen® product must be furnished by
an approved mix supplier.
12.3 Product Temperature
The product temperature should be
measured by a calibrated thermometer.
If you suspect that the thermometer is
out of calibration, test it by lling a cup
with ice and water and inserting the
thermometer into it. After a few minutes,
the thermometer should read exactly
32°F (0°C). The freezer should maintain
a product temperature variation of only
1½°F (1°C) on a product temperature
To view videos on the GES freezer visit: http://www.electrofreeze.com/GES_Videos.aspx
40 184560
of 18°F (-8°C). The control panel dial
thermometer should read 5° to 15°F
(-15° to -9°C) when product is being
dispensed at 18°F (-8°C). Although this
dial thermometer is not accurate for
measuring product temperature, it is wise
to accustom the operators to observe the
dial thermometer for its normal operating
reading.
Page 51
Twin Twist Soft Serve Freezer Model GES-103
12.4 Overrun
As mix is being frozen in the freezing
cylinder, air is incorporated into the mix to
increase its volume as well as the taste
and appeal of the nished product. The
increase in volume is called overrun.
Forty ve percent overrun means a
volume increase of 45%—10 gallons of
liquid mix has become 14.5 gallons of
nished product.
Controlled overrun is important in
maintaining consistency in product quality.
Too much overrun (air) results in a light,
uffy product lacking the cold, refreshing
appeal of a quality product. Too little
overrun results in a grainy, heavy product.
To correctly measure the overrun, take
a pint container and adjust your scale to
zero with the container on the scale. Fill
the container with liquid product even with
the top of the container and record the
weight. Then ll the container with frozen
product, leaving no voids or air spaces
in the container. Strike off the excess
product so it is even with the top of the
container and weigh it. Use the following
formula to gure overrun percentage:
Weight of liquid mix minus weight of
frozen product. Divide the difference by
the frozen weight.
Example:
Weight of one pint of mix = 18 oz.
Weight of one pint frozen
product = 12 oz.
Difference 6 oz.
6.0 oz. divided by 12 oz. = .5
.5 x 100 = 50% overrun
H. C. Duke and Son, LLC can provide a
scale (part #HC158049) that is graduated
in overrun percentage.
Section 12.7 is an overrun chart which
shows the net weight of one measure
pint of frozen Dairy Queen® product in
grams, ounces, and their corresponding
percentage of overrun.
12.5 Overrun Adjustment
The overrun is regulated by the air meter.
You were supplied with six air meters,
each containing a different size orice.
The smaller the hole and number, the
lower the overrun. The larger the hole and
number, the higher the overrun. Each
half-step change of the air meter number
will result in a 3-5% change in overrun.
Each full-step change will result in a
8-10% change in overrun.
The orice or hole in this air meter must
be open at all times. It is the only source
of air into the freezing cylinder. Check this
daily!
The mix will be a determining factor as to
the amount of overrun you will be able to
achieve. Some mixes will accept more air
than others, thus affecting the size of air
meter you can use.
Test to see which air meter will give you
the best overrun and the best product.
Run each air meter for a few hours until
you make the determination. (You may
have a slightly higher overrun when you
rst start up the freezer.) After the freezer
has run long enough to dispense at least
one full cylinder of product, you will have
the overrun that the freezer will hold the
remainder of the day.
Figure 10-1 Air Meter
184560 41
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Twin Twist Soft Serve Freezer Model GES-103
12.6 Rerun
Rerun is product that has been drawn through the freezer into a container and has
melted down to be reprocessed.
1. International Dairy Queen® does not
permit the use of rerun.
2. Rerun product is unable to accept
the same amount of air as fresh
product; therefore, you cannot
produce a quality product with rerun
mix. Product may appear grainy and
icy, and operational problems may
result from the use of rerun.
12.7 Overrun Chart
Net. Wt.
1 Pint of
Frozen
Dairy Queen
In Ounces
13.7 388.4 35
13.6 385.5 36
13.5 382.7 37
Net. Wt.
1 Pint of
Frozen
Dairy Queen
In Grams
For further information contact the
Service Department of H. C. Duke &
Son, LLC by phone at (309) 755-4553 or
(800) 755-4545.
Percentage
of
Overrun
13.4 379.9 38
13.3 377 39
13.2 374.2 40
13.1 371.4 41
13.0 368.5 42
12.9 365.7 43
12.8 362.9 44
12.7 360 45
12.6 357.2 46
12.5 354.3 47
12.4 351.5 48
12.3 348.6 49
12.2 354.8 50
12.1 342.9 51
12 340.1 52
11.9 337.2 53
11.8 334.4 54
Acceptable
Range
for
Overrun
11.7 331.5 55
42 184560
Page 53
Twin Twist Soft Serve Freezer Model GES-103
13 Routine Maintenance
H.C. Duke and Son, Inc. recommends the following schedule to help maintain your Model
GES-103 Twin Twist Soft Serve Freezer in like-new operating condition. Take the time to learn
and perform these routine procedures and receive in return many years of valuable service
from your freezer. Protect your investment!
DAILY
1. Disassemble, wash, rinse, sanitize,
and air-dry all parts that come into
contact with the mix or product.
CAUTION
To prevent bacteria growth,
remove all o-rings when
cleaning. Failure to do so
could create a health hazard.
2. Clean the cylinder, cylinder inlet
tubes and drain tube with the
appropriate brushes.
3. When cleaning, inspect all o-rings,
seals and hoses. Replace any o-ring,
seal or hose that is worn, torn, or
loose tting.
4. Wipe all exterior surfaces of the
freezer to remove any splattered mix.
5. Check overrun and temperature of
the product.
AS NEEDED
CAUTION
To avoid electrical shock or
contact with moving parts, make
sure all switches are in the “OFF”
position and that the main power
supply is disconnected. Some
freezers have more than one
disconnect switch.
1. Clean the Mix Transfer System:
Important:
If the transfer hose is assembled
improperly or replacement has been
neglected, it may be necessary to clean
mix from the MTS due to hose failure.
If this happens frequently the MTS
should be removed for complete
cleaning.
— continued
184560 43
Page 54
Twin Twist Soft Serve Freezer Model GES-103
13 Routine Maintenance ( continued)
AS NEEDED (continued)
CAUTION
Make sure the freezer
is depressurized before
proceeding.
a. Remove cover, loosen swing clamp
and open shoe to gain access to the
hose cavity.
b. Remove mix transfer hose assembly.
c. Lay a towel on the cabinet base
below the MTS.
d. Using the spray bottle supplied, ush
the hose cavity and roller assembly.
e. Use a brush (supplied) to clean in
between rollers. Flush with sanitizer.
f. Wipe all surfaces with a clean dry
cloth.
WEEKLY
1. Carefully inspect all parts for wear,
including seals, O-rings, mix transfer
tubes, and blades.
2. Replace as required.
Replace blades if worn 3/16” or more.
3. Check the shaft tang and
drive coupling for wear.
g. Remove and clean shoe. See gure
11-1.
RIGHT SIDE SHOWN
LEFT SIDE THE SAME EXCEPT MIRRORED
LUBRICATE WITH FOOD
GRADE LUBRICANT
SWING CLAMP ARM
SHOE SWING CLAMP
O-RING
WASHER
KNOB
ROLLER SHOE
O-RING
PRESSURE RELIEF SPRING
BRUSH BETWEEN ROLLERS
LUBRICATE WITH FOOD
GRADE LUBRICANT
SHOE PIVOT ARM
Figure 13-1
4. A worn coupling will have a nonparallel
shape on the drive opening.
M02082
44 184560
Page 55
Twin Twist Soft Serve Freezer Model GES-103
13 Routine Maintenance (continued)
MONTHLY
A. Testing the Head Switch
The head switch feature is designed
to prevent the beater shaft from being
accidentally activated. The beater
motors should not operate with the
head assembly removed. It is essential
that the proper operation of this
switch be veried routinely. Use the
following instructions to test for proper
operation:
CAUTION
To avoid electrical shock or
contact with moving parts,
make sure the control pad
is “OFF” and that the power
switch is “OFF”.
1. Remove the dispense head and
beater shaft assemblies.
2. Place the power switch “ON”.
CAUTION
Moving parts. Do not place
hands in the freezing cylinder.
Severe personal injury could
result.
NOTE: Do this test for each freezing
cylinder.
3. Press the and “BEATER ON”.
Look inside the cylinder at the rear
drive coupling for rotation. Press the
freeze button and look inside the
cylinder at the rear drive coupling for
rotation. Turn the “ BEATER OFF”.
Proper Operation
When “BEATER ON” is activated or the
freeze button is pushed, the display
should read “HEAD SWITCH” and not
allow coupling/beater shaft rotation. The
head switch is operating properly. When
the head is replaced the system should
reset and allow beater rotation. Make
sure the control pad is “OFF” and that
the power switch is “OFF”. The freezer is
ready to be assembled and put in service.
Mechanical Hazard
When “BEATER ON” is activated or the
freeze button is pushed and the rear
drive coupling is rotating and the display
does not read “HEAD SWITCH”. Freezer
has a head switch or software problem.
Turn the power switch “OFF”. DO NOT
place the freezer in service until the
problem has been corrected.
B. Water Condenser
Check the outlet water temperature
of water-cooled condensers at the
oor drain. Ideal water temperatures
should be about 95°F (35°C) with a 70°F
(21.1°C) water inlet temperature.
— continued
184560 45
Page 56
Twin Twist Soft Serve Freezer Model GES-103
13 Routine Maintenance (continued)
MONTHLY (continued)
C. MTS Cover Switch
The MTS cover switch feature is
designed to prevent the MTS gear motor
from being accidentally activated. It is
essential that the proper operation of this
switch be veried on a routine basis. Use
the following instructions to test for proper
operation:
NOTE: Freezer should be cleaned
and disassembled for this test.
CAUTION
Make sure system is
depressurized before
proceeding.
1. Be sure all switches are in the
“OFF” position.
2. Remove the MTS cover to expose
the roller assembly.
5. If there is no movement, slowly
install cover and listen for the gear
motor to turn on. The cover should be
almost completely closed when the
gear motor turns on. DO NOT insert
ngers or objects into roller cavity
during this test. If the MTS does not
operate as described here, or you
are unable to determine if the MTS is
operating properly, turn the switches
to the “OFF” position, disconnect the
main power supply and contact your
service technician or the factory. DO
NOT place the freezer in service until
the problem has been corrected.
D. Replace the Mix Transfer
Hose
CAUTION
Make sure the freezer
is depressurized before
proceeding.
3. Turn MTS switch to “ON”.
CAUTION
DO NOT place hands near the
MTS rollers. Severe personal
injury could result.
4. Look at the MTS rollers; they
should NOT be rotating. If they are
rotating, turn “OFF” mix switch and
discontinue use until repairs can be
made.
CAUTION
To avoid electrical shock or
contact with moving parts,
make sure all switches are in
the “OFF” position and that
the main power supply is
disconnected. Some freezers
have more than one disconnect
switch.
QUARTERLY
A. Air Condenser.
Important:
Never use a screwdriver or sharp
object to clean between ns.
Both air and water cooled freezers have
an air condenser. The condenser ns
need to be cleaned by your H.C. Duke &
Son, LLC. Distributor to remove dirt, lint
WARNING!
Failure to properly maintain/clean your air condenser can cause
premature compressor failure. Compressor failure due to improper
condenser care will void the compressor warranty.
and dust.
B. Refrigeration System
Have your H.C. Duke & Son, LLC.
Distributor check the refrigeration system
and make any necessary adjustments.
46 184560
Page 57
Twin Twist Soft Serve Freezer Model GES-103
13 Routine Maintenance (continued)
1500 HOURS OF
OPERATION OR
6 MONTHS
1. Contact your service technician for
the initial oil change of the gear
reducer.
ANNUALLY
CAUTION
To avoid electrical shock or
contact with moving parts, make
sure all switches are in the
“OFF” position and that the main
power source is disconnected.
Some freezers have more than
one disconnect switch.
SEMI-ANNUALLY
1. Have the condenser fan motor
checked by your service technician.
Add oil as needed.
5000 HOURS OF
OPERATION OR
1 YEAR
1. Contact your service technician
to have the oil in the gear reducer
changed.
NOTE: Under normal conditions the
oil should be changed after 5000 hours
of operation or every year, whichever
occurs rst.
1. Call your service technician for service
to replace drive belts and lubricate fan
motor as needed.
2. Call your service technician to clean
the inside of the freezer including base,
side panels, condenser, etc.
3. Call your service technician to check
water-cooled condensers and ush
clean to remove scale and deposits if
necessary.
184560 47
Page 58
Twin Twist Soft Serve Freezer Model GES-103
Winter Storage
To protect the unit during seasonal shutdown, it is important to store the
GES-103 Twin Twist Soft Serve Freezer properly. Please use the following
procedures:
1. Disconnect all power to the freezer.
2. Disassemble and wash all parts that come into contact with the mix
with a warm, mild detergent solution. Rinse in clear water and dry all
parts thoroughly.
3. Store the loose parts, such as the head assembly, beater assembly,
and pump parts in a safe dry place.
4. Do not lay heavy objects on the plastic or rubber parts.
5. Cover the freezer and all loose parts to protect them from dust or other
elements that could contaminate them while in storage. Place the
freezer in a dry location.
13 Routine Maintenance (continued)
6. On air-cooled freezers, have condenser ns cleaned by authorized
service technician.
7. On water-cooled freezers, disconnect the water supply. Use
compressed air to blow out all remaining water in the condenser.
Important;
The water valve must be opened in order to blow out the condenser.
Failure to purge the freezer of water can result in severe damage to
the cooling system. Call your local service technician for service or
the H. C. Duke & Son, LLC Service Department.
USE ONLY ORIGINAL OR AUTHORIZED REPLACEMENT PARTS WITH THIS FREEZER.
(See your Illustrated Replacement Parts Manual)
Should you have any questions on items that are not included in this maintenance
schedule, or problems where service assistance is needed, please call your local
authorized service company or H. C. Duke & Son, LLC Service Department, for factory
service at (800) 755-4545 or (309) 755-4553.
48 184560
Page 59
Twin Twist Soft Serve Freezer Model GES-103
14 Troubleshooting
This safety alert symbol identies important personal safety
messages in this manual. When you see this symbol, be alert
to the possibility of personal injury. DO NOT attempt to continue
until the safety precautions are thoroughly understood.
CAUTION
All maintenance and adjustments must be done by a qualied
SAFETY
service technician.
TO AVOID ELECTRICAL SHOCK OR CONTACT WITH MOVING PARTS, MAKE
SURE ALL SWITCHES ARE IN THE “OFF” POSITION AND THAT THE MAIN
POWER SUPPLY IS DISCONNECTED. SOME FREEZERS HAVE MORE THAN
ONE DISCONNECT SWITCH.
Note: For Water-cooled freezers connected to glycol cooling systems, freezers
must be switched to city water prior to trouble-shooting freezers.
IMPORTANT:
Some refrigerants are hazardous to the earth's atmosphere. To
protect our environment, use a refrigerant recovery/recycling unit
when removing refrigerant from the system.
CAUTION
184560 49
Page 60
Twin Twist Soft Serve Freezer Model GES-103
14 Troubleshooting Tables
PROBLEM PROBABLE CAUSE REMEDY
1. Freezer unplugged. 1. Plug in freezer.
Fuse or breaker blown at main
2.
disconnect.
3. Beater motor out on overload. 3.
Unit does not
operate.
4. Control circuit overload open. 4.
Make sure your freezer is
connected to a separate circuit
independent from any other
electrical equipment. Have
2.
technician check fuse or breaker
size and check for low voltage; if
not within 10% of nameplate rating
call power company.
Press overload reset button. Check
product temperature. (Note: cabinet
will continue to cool.)
Press overload reset button. If
freezer still does not operate
contact your Your local service
company.
Mix or water
leaking from
drain tube to
drip tray.
Mix leaking
at dispensing
head.
Off on high pressure cut-out or low
5.
pressure cut-out control.
6. Component failure. 6.
7. Faulty selector switch. 7.
Disconnected or broken wire in
8.
electrical circuit.
Damaged beater shaft seal or
1.
installed improperly.
Beater shaft pitted or damaged where
2.
o-ring rides.
3. Beater shaft end play not set properly. 3.
1. Faulty head o-ring. 1. Replace o-ring.
2. Head not properly installed. 2.
Contact your Your local service
5.
company.
Contact your Your local service
company.
Contact your Your local service
company.
Contact your Your local service
8.
company.
Replace cup seal or o-ring inside
1.
bushing. Install properly.
2. Replace beater shaft.
Contact your Your local service
company.
Install head properly. Replace
o-ring if pinched.
Dirty or blocked condenser, restricted
1.
Dispensed
product too
soft. (Product
temperature
above 19°F)
50 184560
air ow.
2. Component failure. 2.
Leak in refrigeration system resulting in
3.
little or no refrigeration.
Unblock condenser or have cleaned
1.
by your
Distributor.
Contact your Your local service
company.
Contact your Your local service
3.
company.
H.C. Duke & Son, LLC.
Page 61
Twin Twist Soft Serve Freezer Model GES-103
14 Troubleshooting Tables (continued)
PROBLEM PROBABLE CAUSE REMEDY
1. MTS pressure too low. 1. See MTS Troubleshooting Charts.
Check product temperature. Should
Product
dispenses
slowly out of
dispensing
head.
2. Product too cold. 2.
3. Low overrun. 3.
4. Wrong rotation on beater. 4.
be 18°F (-7.8°C). See Dispensed
Product Too Hard.
Check air meter. If plugged, clean.
See No Air (Overrun).
Have an electrician correct rotation
to clockwise as viewed from the front
of the freezer.
Dispensed
product too
hard.
Freezer runs
continually
and product
continues to
get colder.
1. Low overrun. 1.
Cylinder thermostat erratic or set too
2.
cold.
Spigot switch electrically or
3.
mechanically stuck closed. (Unit runs
all the time.)
4. Component failure. 4.
Low suction pressure, refrigeration
5.
system.
1. Spigot switch rod engaged. 1. Close spigot completely.
2. Spigot not seated in head. 2. Push spigot down.
Spigot switch out of adjustment or
3.
defective.
Faulty thermostat or bulb not deep
4.
enough in well.
5. Starter or relay contact points stuck. 5.
Check overrun, if low see MTS
Troubleshooting Chart.
Contact your Your local service
2.
company.
Contact your Your local service
3.
company.
Contact your Your local service
company.
Contact your Your local service
5.
company.
Contact your Your local service
3.
company.
Contact your Your local service
4.
company.
Contact your Your local service
company.
6. Faulty time delay. 6.
7. Suction pressure too low. 7.
184560 51
Contact your Your local service
company.
Contact your Your local service
company.
Page 62
Twin Twist Soft Serve Freezer Model GES-103
14 Troubleshooting Tables (continued)
PROBLEM PROBABLE CAUSE REMEDY
Poor or slow
product
recovery.
Compressor
does not
operate or
operates
improperly.
Dirty or blocked condenser, restricted
1.
air ow – high ambient temperature.
Thermostat cut-in point out of
2.
adjustment or malfunctioning.
Defective condenser fan motor (air
3.
cooled)
4. Component or compressor failure. 4.
Trouble in compressor condensing
1.
circuit
Faulty start capacitor, run capacitor or
2.
relay. (Single phase only)
3. Faulty contactor 3.
Disconnected or broken wire in switch
4.
or capacitor relay box.
Have condenser cleaned by your
1.
local service company; lower
ambient temperature.
Contact your Your local service
2.
company.
Contact your Your local service
3.
company.
Contact your Your local service
company.
Contact your Your local service
1.
company.
Contact your Your local service
2.
company.
Contact your Your local service
company.
Contact your Your local service
4.
company.
1. Head assembly is not installed. 1. Install head assembly.
Beater motor
does not
operate.
Compressor
and beater
motor operates
only when
dispensing.
52 184560
2. Magnetic head switch defective. 2.
3. Component failure. 3.
Cylinder thermostat setting too warm or
1.
thermostat defective.
Contact your Your local service
company.
Contact your Your local service
company.
Contact your Your local service
1.
company.
Page 63
Twin Twist Soft Serve Freezer Model GES-103
14 Troubleshooting Tables (continued)
PROBLEM PROBABLE CAUSE REMEDY
Compressor
and beater
motor do not
operate when
dispensing.
Cabinet too
cold. (below
35°F [1.7°C])
Spigot switch(es) defective or out of
1.
adjustment.
2. Component failure. 2.
1. Cabinet setting too low. 1.
2. Defective thermostat. 2.
3. Cabinet solenoid stuck open 3.
4. Cabinet expansion valve set too low. 4.
Cabinet thermostat defective, set too
1.
warm or tuned off.
1.
1.
Contact your Your local service
company.
Contact your Your local service
company.
Contact your Your local service
company.
Contact your Your local service
company.
Contact your Your local service
company.
Contact your Your local service
company.
Contact your Your local service
company.
Mix sours in
cabinet.
Cabinet solenoid defective (does not
2.
open).
3. Cabinet switch defective. 3.
4. Door switch defective. 4.
Cabinet compressor contactor coil
5.
open (mix sours in night mode only.
6. Faulty time delay. 6.
7. Suction pressure too low. 7.
2.
5.
Contact your Your local service
company.
Contact your Your local service
company.
Contact your Your local service
company.
Contact your Your local service
company.
Contact your Your local service
company.
Contact your Your local service
company.
184560 53
Page 64
Twin Twist Soft Serve Freezer Model GES-103
14.1 MTS Troubleshooting Tables
PROBLEM PROBABLE CAUSE REMEDY
Mix leaks out
of MTS.
1. Transfer hose worn or split. 1.
1. Pump cover not installed. 1. Install cover.
2. Hose not installed properly. 2. Check position – reinstall.
Remove cover, clean inside MTS
around rollers with spray bottle
provided. Install new hose. Do not
twist hose.
Mix transfer
system
(MTS) will not
operate.
MTS will not
shut off.
MTS cycles on
and off without
dispensing.
3. Slide switch defective. 3.
4. MTS relay defective. 4.
Start capacitor defective or motor start
5.
switch defective.
6. Pressure switch defective. 6.
Motor defective or internal overload
7.
tripped.
1. Hose broken. 1. Replace hose.
Pressure switch stuck in closed
2.
position.
1. Worn transfer hose. 1. Replace hose.
2. Leak on pressure side of system. 2.
Contact your Your local service
company.
Contact your Your local service
company.
Contact your Your local service
5.
company.
Contact your Your local service
company.
Contact your Your local service
7.
company.
Contact your Your local service
2.
company.
Contact your Your local service
company.
1. Insufcient supply of mix. 1. Replenish mix supply.
MTS will not
prime.
Mix pickup
tube loses
prime.
54 184560
2. Swing clamp knob loose. 2. Tighten knob.
3. Air hose or air meter not installed. 3. Install air hose/air meter.
4. Hose not installed. 4. Install hose.
1. Defective or missing duckbill valve. 1. Replace duckbill valve.
2. Inlet clamp not tight. 2. Tighten clamp.
3. Worn transfer hose. 3. Replace transfer hose.
Page 65
Twin Twist Soft Serve Freezer Model GES-103
14.1 MTS Troubleshooting Tables
PROBLEM PROBABLE CAUSE REMEDY
No air
(overrun).
Too much air,
overrun too
high – popping
problems.
Mix shoots out
air meter.
1. Air meter plugged. 1. Clean or replace air meter.
2. Air tube pinched. 2. Replace tube.
1. Air meter too large. 1. Install smaller air meter.
Air leak between pickup tube and
2.
hose.
3. Air line hose cracked – sucking air. 3. Replace air line hose.
4. Defective or missing duckbill valve. 4. Replace valve.
1. Swing Clamp knob loose. 1. Tighten.
2. Transfer hose worn. 2. Replace hose.
3. MTS pressure too high. 3.
2. Replace as needed.
Contact your Your local service
company.
Keep your freezer in excellent
QUALITY PARTS
condition — always contact
your H.C. Duke & Son, LLC.
Distributor for replacement
parts and maintenance
PROTECT
YOUR
INVESTMENT
scheduling.
NOTE: Contact your authorized H.C. Duke & Son, LLC. Distributor for instructions prior to
warranty compressor replacement.
184560 55
Page 66
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes
Error Code Description/Action Probable Cause Remedy
MAIN COMM The Main P.C. Board
has stopped receiving
messages from the User
Interface
1. Faulty Wire
Connection
1. Check Communication cable
between Main P.C. board and U.I.
board. (Contact H.C. Duke & Son
Factory Tech Support)
Action: System shut
down completely.
Reset Method: Auto,
once condition is
rectied.
NO COMM. The U.I. Board is not
receiving messages
from the main board
Action: System shut
down completely.
Reset Method: Auto,
once condition is
rectied.
2.Programming Issue
3. Defective Board
1. Faulty Wire
Connection
2.Programming Issue
3. Defective Board
2. Ensure U.I. Program version
and Main P.C. Program Version are
compatible. (Contact H.C. Duke & Son
Factory Tech Support Software version
compatibility)
3. If the program versions are
compatible, and using the test cable
does not resolve the issue then the
main control board is not functioning
properly and needs to be replaced.
(Contact H.C. Duke & Son Factory
Tech Support)
1. Check Communication cable
between Main P.C. board and U.I.
board. (Contact H.C. Duke & Son
Factory Tech Support)
2. Ensure U.I. Program version
and Main P.C. Program Version are
compatible. (Contact H.C. Duke & Son
Factory Tech Support)
3. If the program versions are
compatible, and using the test cable
does not resolve the issue then the
U.I. board is not functioning properly
and needs to be replaced. (Contact
H.C. Duke & Son Factory Tech
Support)
56 184560
Page 67
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
Error Code Description/Action Probable Cause Remedy
CYL RFG. This error occurs when
cylinder system run time
exceeds 90 minutes.
Cylinder switches to
STBY mode and locks
out.
Action: Cylinder
Refrigeration off, cabinet
refrigeration continues
to operate.
1. Dirty Condenser
2. Shortage of
Refrigerant
3. Faulty wire
connection
4. Compressor starting
components failure (1
Phase Only)
1. Clean Condenser
2. Locate Source of refrigerant leak
and repair.
3. Locate faulty connection (Wire
rubbed through, cut) and repair as
needed.
4. Check Compressor Starting
components and replace as needed.
Reset Method: Main
Power Switch, once
the condition has been
rectied.
5. Compressor
Contactor Failure
6. Compressor
Contactor Control Relay
not activating
7. System lacks
efciency
8.Faulty Thermistor
5. Check contactor coil for proper
resistance, check for voltage drop
across contact points. Replace as
needed
6. Check to see if Relay is receiving
power from Main P.C. board (12VDC),
Ohm relay control coil for proper
resistance. Replace relay as needed.
If no 12VDC is detected Contact H.C.
Duke & Son Factory Tech Support.
7. Check for worn blades, AXV
pressure settings, Check water
regulating valve setting (Water
Cooled), check refrigerant level,
compressor efciency.
8. Remove thermistor, check in ice
water and compare to thermistor curve
chart. If faulty replace, if thermistor
tests o.k. check wire harness
connections. If all connections are
sound possibility of control board
issue. (Contact H.C. Duke & Son for
proper compressor oil charge)
9. Condenser Fan Motor
Failure (Air Cooled
Only)
184560 57
9. Replace Condenser fan motor
Page 68
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
Error Code Description/Action Probable Cause Remedy
CYL RFG. This error occurs when
cylinder system run time
exceeds 90 minutes.
Cylinder switches to
STBY mode and locks
out.
Action: Cylinder
Refrigeration off, cabinet
refrigeration continues
to operate.
Reset Method: Main
Power Switch, once
the condition has been
rectied.
10. Water Flow
Restriction (Water
Cooled Only)
11. AXV not set
properly/not responding
12. Compressor Failure/
Reduced Capacity
10. Locate and remove restriction, restart system to check for further issues
11. Check System refrigerant level,
attempt to re-set AXV valve pressure.
If valve is not responsive, it may need
to be replaced
12. Check Voltage to the unit to
ensure it is within specication,
Check wire connections to the unit
and compressor, Check compressor
contactor for loose wire connections
and proper operation, and possible
voltage drop, ohm compressor
windings to check for a short and
proper winding resistance, check
compressor starting components for
failure, allow compressor protector to
reset and check for proper amp draw.
13. Moisture in system
14. Compressor Control
Relay not activating
CABINET
RFG
58 184560
Occurs when cabinet
refrigeration system
run time exceeds 90
minutes
Action: Cylinder
refrigeration switches to
standby mode, cabinet
refrigeration is turned
off.
Reset Method: Main
Power Switch, once
the condition has been
rectied.
1. Dirty Condenser
2. Shortage of
Refrigerant.
3. Evaporator coil Froze
up
4. Cabinet TXV
superheat not set
properly
13. Recover refrigerant, change
lter drier, change compressor oil
(Contact H.C. Duke & Son for proper
compressor oil charge), Evacuate
system to a minimum of 200 microns
or less. Repeat if necessary
14. Check to see if Relay is receiving
power from Main P.C. board (12VDC),
Ohm relay control coil for proper
resistance. Replace relay as needed.
If no 12VDC is detected Contact H.C.
Duke & Son Factory Tech Support.
1. Clean Condenser
2. Locate Source of refrigerant leak
and repair.
3. Check door gasket for wear, check
evaporator fan motor for proper
operation, check spring loaded door
closer for proper operation.
4. Ensure the Cabinet TXV Superheat
is at 10 to 12 degrees once the
system is close to set point. Adjust if
necessary
Page 69
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
Error Code Description/Action Probable Cause Remedy
CABINET
RFG
(cont.)
Occurs when cabinet
refrigeration system
run time exceeds 90
minutes
5. Faulty wire
connection
5. Locate faulty connection (Wire
rubbed through, cut) and repair as
needed.
Action: Cylinder
refrigeration switches to
standby mode, cabinet
refrigeration is turned
off.
Reset Method: Main
Power Switch, once
the condition has been
rectied.
6. Restriction in System
i.e. Capillary tube, Filter
Drier
7.Faulty Thermistor
8. Compressor Control
Relay not activating
9. Compressor starting
components failure
6. Locate restriction and repair as
needed.
7. Remove thermistor, check in ice
water and compare to thermistor curve
chart. If faulty replace, if thermistor
tests o.k. check wire harness
connections. If all connections are
sound possibility of control board
issue. (Contact H.C. Duke & Son
Factory Tech Support)
8. Check to see if Relay is receiving
power from Main P.C. board (12VDC),
Ohm relay control coil for proper
resistance. Replace relay as needed.
If no 12VDC is detected Contact H.C.
Duke & Son Factory Tech Support.
9. Check Compressor Starting
components and replace as needed.
10. Compressor failure/
reduced capacity
11. Moisture in System
184560 59
10. Check Voltage to the unit to
ensure it is within specication,
Check wire connections to the unit
and compressor, Check compressor
contactor for proper operation,
and possible voltage drop, ohm
compressor windings to check
for a short and proper winding
resistance, check compressor
starting components for failure, allow
compressor protector to reset and
check for proper amp draw.
11. Recover refrigerant, change
lter drier, change compressor oil
(Contact H.C. Duke & Son for proper
compressor oil charge), Evacuate
system to a minimum of 200 microns
or less. Repeat if necessary
Page 70
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
Error Code Description/Action Probable Cause Remedy
CYL. TEMP Occurs when barrel
thermistor is above or
below temp. limit for 1
minute without change
1. Faulty wire
connection
1. Locate faulty connection (Wire
rubbed through, cut) and repair as
needed.
CABINET
TEMP.
HEAD SW
(Head
Switch)
Action: Affected barrel
is in STBY time cycle
mode (1min on and
40 min. off), Cabinet
refrigeration remains on
Occurs when cabinet
thermistor is above or
below temp. limit for 1
minute without change
Action: Cabinet is in
time cycle mode (5 min.
on and 30 min. off) both
cylinders are in standby
mode.
If unit is in cabinet only
mode: Cabinet is in time
cycle mode and both
cylinders remain off
Occurs when head
switch is open with
power applied to unit
2. Faulty Thermistor
1. Faulty wire
connection
2. Faulty Thermistor
3. Program Issue
1. Head Assembly Not
installed
2. Remove thermistor, check in ice
water and compare to thermistor curve
chart. If thermistor does not ohm
correctly, replace thermistor.
1. Locate faulty connection (Wire
rubbed through, cut) and repair as
needed.
2. Remove thermistor, check in ice
water and compare to thermistor curve
chart. If thermistor does not ohm
correctly, replace thermistor.
3. Ensure U.I. Program version
and Main P.C. Program Version are
compatible. (Contact H.C. Duke & Son
Factory Tech Support)
1. Install Head assembly
Action: Affected cylinder
is turned off.
Reset Method: Auto,
once condition has been
rectied
60 184560
2. Faulty Head switch (1
per cylinder)
3. Faulty wire
connection
4. Magnet removed from
Head assy.
2. Test head switch to see if circuit
remains open with magnet in place,
remove and replace head switch as
needed
3. Locate Faulty wire connection and
repair as needed
4. Replace the head assy.
Page 71
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
Error Code Description/Action Probable Cause Remedy
MOTOR
OVLD
Occurs when motor
current is 0, and the
computer is calling for
the motor to operate.
1. Motor internal
overload open
1. Allow motor to cool and overload to
reset, Check motor start components,
product temperature (Too cold, low
overrun), and gear reducer operation.
Action: Affected barrel is
off, hopper refrigeration
continues to operate.
Reset Method: Main
Power Switch, once
the condition has been
rectied.
2. Faulty wire
connection
3. Motor Contactor
Failure
4. Motor control relay
not activating
5. Motor Failure
6. Current Sense board/
function failure
2. Locate Faulty wire connection and
repair as needed
3. Check contactor coil for proper
resistance, check for voltage drop
across contact points. Replace as
needed
4. Check to see if Relay is receiving
power from Main P.C. board (12VDC),
Ohm relay control coil for proper
resistance. Replace relay as needed.
If 12 VDC is not detected Contact H.C.
Duke & Son Factory Tech Support
5. Check motor starting components,
check motor for shorts to ground,
check for proper winding resistance.
Replace Motor as needed
6. Check current sense board wire
connections, check max current
setting in control system. (Contact
H.C. Duke & Son Factory Tech
Support)
7. One line of power
loss
8. Program Issue
184560 61
7. Check main power supply, and
main wire connections and correct as
needed
8. Ensure U.I. Program version
and Main P.C. Program Version are
compatible. (Contact H.C. Duke & Son
Factory Tech Support)
Page 72
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
COMP. LO
PSI
Occurs when low
pressure control is
activated.
Action: Cylinder
refrigeration is off,
Cabinet refrigeration
Continues to operate.
Reset Method: Main
Power Switch, once
the condition has been
rectied.
1. System is Short on
refrigerant
2. Solenoid valve not
activating
3. Low pressure control
is Faulty.
4. Restriction is
refrigeration system.
1. Locate refrigerant leak and repair as
needed. Ensure refrigeration system is
evacuated to at least 200 microns.
2. Determine if Solenoid coil is
receiving proper voltage (208/230
Volts), If coil is receiving voltage,
ohm out coil windings. If coil is
not receiving voltage, check relay
responsible for activating coil and
repair as needed.
3. Conrm Low pressure control is
faulty by installing manifold gauges to
conrm suction pressure is above cut-
in set point of control. Replace control
as needed
4. Locate and remove restriction i.e.
restricted drier, AXV closed down,
Solenoid valve not opening etc.
5. Faulty wire
connection.
6. System component
failure
COMP. HIGH
PSI
62 184560
Occurs when the High
pressure control is
activated.
Action: Cylinder
refrigeration is off,
Cabinet refrigeration
Continues to operate
Reset Method: Main
Power Switch, once
the condition has been
rectied.
1. Dirty Condenser Air
Cooled
2. Bad Condenser Fan
Motor (A/C Only)
3. Dirty Condenser
(Water Cooled)
5. Repair connection as needed i.e.
faulty connection on LPCO, etc.
6. Locate failed component
(Diagnostics Mode in Technician
Menu will aid in locating) i.e. solenoid
coil, AXV valve not opening, control
relay, Compressor contactor staying
energized causing unit to pump down,
etc. and repair as needed.
1. Blow out and clean Air cooled
condenser re-start system and check
unit operation.
2. Replace Condenser motor as
needed. Check system operation
3. Check inlet and outlet water
temperature on condenser, it should
be at least 20°F difference from inlet
to outlet. If there is no temperature
change, condenser is fouled out and
will need to be cleaned, or changed.
If this condition is present, contact the
H.C. Duke & Son Technical Support
Line.
Page 73
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
Error Code Description/Action Probable Cause Remedy
COMP. HIGH
PSI
(cont.)
Occurs when the High
pressure control is
activated.
Action: Cylinder
refrigeration is off,
Cabinet refrigeration
Continues to operate
4. High Pressure control
is Faulty.
5. Faulty Wire
Connection
4. Conrm High pressure control is
faulty by installing manifold gauges to
conrm high side pressure is below
cut-out set point of control. Replace
control as needed.
5. Repair connection as needed i.e.
faulty connection on HPCO, etc.
CLOCK
ERROR
Reset Method: Main
Power Switch, once
the condition has been
rectied.
CLOCK ERROR
Action: All timer
functions use default
data/time
6. Non-Condensables in
refrigeration system.
7. Refrigeration System
over charged.
Contact H.C. Duke &
Son Technical Support
Line if this Problem
exists
6. Fully recover refrigerant from
system, change the refrigerant lter/
drier, evacuate system to at least
200 microns and weigh in Factory
refrigerant charge (Contact H.C. Duke
& Son in charge amount is not stated
on machine data Plate). Ensure while
evacuating system a manual activation
magnet is placed on each solenoid to
ensure they are open for a full system
evacuation. Start system and check
operation
7. Fully recover refrigerant from
system, change the refrigerant lter/
drier, evacuate system to at least
200 microns and weigh in Factory
refrigerant charge (Contact H.C. Duke
& Son if charge amount is not stated
on machine data Plate). Start system
and check operation
Contact H.C. Duke & Son Technical
Support Line if this Problem exists.
184560 63
Page 74
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
Error Code Description/Action Probable Cause Remedy
POWER FAIL Displays Power Fail if
main power to system
has failed
Action: If unit is in
Freeze or STBY mode,
unit will restore in STBY
Mode.
If unit is in Clean or Off
Mode, unit will restore in
Off Mode.
Reset Method: Auto,
once the condition has
been rectied. Power
Fail will be displayed
on screen until user
presses enter button
to acknowledge loss of
main power.
1. Main Incoming power
to unit was disrupted
1. Check all main power connections,
Transformer switch to 208 Volt for
220Volt and below and 230 Volt for
220 Volt and above.
2. Check 24VAC connections to
control board, ensure all 24VAC
connections are secure.
SPIGOT Displays Spigot if the
Left or Right Side Spigot
switch is engaged for
more than 5 minutes.
Action: Affected side
compressor and beater
motor are off.
Reset Method: Auto,
once the condition has
been rectied.
C SPIGOT Displays C Spigot if the
Center spigot switch is
engaged for more than
5 minutes
Action: Affected side
compressor and beater
motor are off.
Reset Method: Auto,
once the condition has
been rectied.
1. Spigot Push rod not
installed
2. Spigot switch has
failed in the closed
position
3. Spigot Switch is out
of adjustment
4. Plunger is sticking
open
1. Spigot Push rod not
installed
2. Spigot switch has
failed in the closed
position
3. Spigot Switch is out
of adjustment
4. Plunger is sticking
open
1. Install Spigot Push Rod and start
system to see if error is eliminated.
2. Replace defective spigot switch
and ensure new switch is adjusted
properly.
3. Re-adjust Spigot switch to operate
properly with Push Rod.
4. Check for proper lubrication,
o-ring wear, switch tower spring worn
causing plunger to not close, etc.
1. Install Spigot Push Rod and start
system to see if error is eliminated.
2. Replace defective spigot switch
and ensure new switch is adjusted
properly.
3. Re-adjust Spigot switch to operate
properly with Push Rod.
4. Check for proper lubrication,
o-ring wear, switch tower spring worn
causing plunger to not close, etc.
64 184560
Page 75
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
Error Code Description/Action Probable Cause Remedy
L PWR OFF
(This error only
applies to Dual
Power supply
units)
Displays L POWER OFF
if the Power good relay
is not energized, for
the A/Left side of dual
power supply machines.
Action: Left side of unit
is off, and the right side
is operational
Reset Method: Auto,
once the condition has
been rectied.
1. Main power to left
side is off
2. Power good relay has
failed
3. Faulty wire
connection to power
good relay.
1. Check to see if main circuit breaker
is tripped or unit’s main power cord is
not installed properly.
2. Check coil on power good relay with
ohm meter. If open electrically replace
relay.
3. Check high voltage wire
connections to power good relay.
Check low voltage connections going
from relay to main control board.
Check continuity through relay
contacts to ensure proper operation.
Repair any connections as needed.
PUMP HI PSI Displays Pump Hi PSI
if the pump pressure is
greater than 40 PSI for
10 seconds while pump
is on.
Action: Affected pump is
turned off
Reset Method: Main
Power Switch, once
the condition has been
rectied.
Note: If unit trips this
error and Pressure
relief has not opened,
check to ensure relief is
functioning properly.
4. Control board issue.
1. Pump control relay
is stuck closed causing
pump motor to stay
energized.
2. Faulty Pressure
transducer/out of
calibration.
3. Faulty Control Board
4. Contact H.C. Duke & Son Technical
Support
1. Test to see if coil voltage is
present at pump control relay, If it
is not and pump is still running, the
control relay is stuck and needs to be
replaced. If coil voltage is present then
control board or Transducer may be
malfunctioning.
2. Attempt to calibrate the Transducer
to 0 psi and re-test unit. If unit
continues to malfunction contact H.C.
Duke & Son Technical Support.
3. Contact H.C. Duke & Son Technical
Support.
184560 65
Page 76
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
Error Code Description/Action Probable Cause Remedy
PUMP
ERROR
(Formerly
PUMP LO
PSI)
Displays Pump Error if
the pump has ran for
2 minutes continually
while in freeze mode.
Action: Affected pump
is turned off, along with
the affected cylinder
being turned to standby
Reset Method: Main
Power Switch, once
the condition has been
rectied.
1. Pump transfer hose is
worn out.
2. Leaking Pressure
Relief System
4. Pump control relay
not closing preventing
pump motor from
running
1. Replace pump transfer hose
(Should be replaced minimally every
30 days)
2. Check to ensure swing arm is
tightened properly. Also check to
ensure spring has not become
compressed.
4. Test to see if coil voltage is present
at pump control relay, If it is present
but the pump will not start, check to
see if the relay contacts are closing.
If so move on to troubleshooting the
pump motor. If not replace the relay
and check operation.
SHORT Displays SHORT when
a thermistor has failed in
a shorted state.
Action: Affected System
is cycled off.
5. Pump motor Starting
components Faulty
6. Faulty wire
connection
7. Pressure Transducer
is Faulty
8. Faulty Control Board
1. Faulty wire
connection
2. Faulty Thermistor
5. Remove and test pump Start
capacitor and starting relay, Replace
faulty parts as needed. Check motor
windings to ensure no electrical shorts
are present. Start unit and check
operation.
6. Locate and repair faulty wire
connections as needed.
7. Attempt to calibrate the Transducer
to 0 psi and re-test unit. If unit
continues to malfunction contact H.C.
Duke & Son Technical Support.
8. Contact H.C. Duke & Son Technical
Support
1. Check to ensure wires have not
rubbed through and shorted out
together or the wire harness is not
resting in water.
2. Change thermistor
Reset Method: Auto
once issue is corrected.
66 184560
Page 77
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
Error Code Description/Action Probable Cause Remedy
OPEN Displays OPEN when a
thermistor has failed in
an open state.
Action: Affected system
is cycled off
Reset method: Auto
once issue is corrected
1. Faulty wire
connection
2. Faulty Thermistor
1. Check to ensure Molex connectors
are connected fully and that no wiring
from the control board to the sensor
has been severed.
2. Change Thermistor
CYL. T
ALARM
CAB T
ALARM
Displays CYL T ALARM
when the cylinder
temperature has
reached 36 degrees for
over 2 minutes.
Action: Alarm is
displayed only and will
not change the state of
the machine.
Reset Method: The
main power switch must
be cycled to reset error.
Displays CAB T ALARM
when the cabinet
temperature has
exceeded 41 degrees
for 15 minutes.
Action: Alarm is
displayed only and will
not change the state of
the machine.
Please refer to the
error CYL RFG for
troubleshooting.
Please refer to the
error CAB RFG for
troubleshooting.
Please refer to the error CYL RFG for
troubleshooting.
Please refer to the error CAB RFG for
troubleshooting
Reset Method: The
main power switch must
be cycled to reset error.
184560 67
Page 78
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
Error Code Description/Action Probable Cause Remedy
CLEAN
FINISHED
Displayed when the 4
parameters have been
met for the machine to
log a Last clean.
The 4 parameters to display Clean
Finished are as follows:
1. Head assy. removed for 10 minutes.
PUMP
COVER
Action: Displayed on
the screen once the
head is re-installed.
Reset Method: Pressing
the ENTER button will
clear the display.
Occurs if the RMT
pump cover is removed
or the cover switch is
open.
Action: If unit is in
Freeze, the affected
side will be turned
to standby and the
affected pump will be
turned off. If unit is in
clean or Standby mode
the affected pump will
be turned off and unit
will not be allowed to be
put into freeze, and will
remain in standby or off.
Reset Method: Auto,
once the condition has
been rectied.
1. Pump cover is not
installed
2. Pump cover magnet
has been removed or
fallen out
3. Pump Cover safety
switch is Faulty
4. Faulty Wire
Connection
5. Program issue
2. Main Power switch needs to be
turned off
3. Cylinder temperature have to rise
above 55 degrees.
4. Both Mix transfer system pump
covers need to be removed.
If unit is a Gravity machine then
the computer has to see a mix out
condition.
1. Install Pump Cover
2. Replace pump cover
3. Test switch to conrm and replace
as needed.
4. Locate and repair faulty wire
connections as needed.
5. Contact H.C. Duke & Son Technical
Support
68 184560
Page 79
Twin Twist Soft Serve Freezer Model GES-103
15 VQM Error Codes (continued)
Error Code Description/Action Probable Cause Remedy
Main P.C.
Board
Heartbeat
L.E.D not
blinking/
U.I. Not
Energizing
Occurs if there is a
power loss to the Main
P.C. Board or a possible
U.I. Issue
1. Power Loss to Main
P.C. Board
2. Main P.C. Board Fuse
blown
3. Power Not being
supplied to U.I. Board
from main P.C. Board
1. Check control transformer for main
24 VAC power supply to main P.C.
Board.
2. Remove fuse and ohm to check for
continuity, if none replace fuse. If once
fuse is replaced and power is restored,
the Main P.C. Board L.E.D. starts
blinking however the U.I. Board does
not energize then continue with this
troubleshooting chart
3. Remove communication wire from
U.I. Board, This cable connects the
U.I. Board to Main P.C. Board. Using
a meter set to DC voltage and power
to the Main P.C. Board on, test voltage
across both Black wires. If voltage
reads about 5.96 VDC then Main P.C.
Board and the communication cable
are working properly and the problem
lies with the U.I. Board
4. Faulty wire
connection
If tested to the control board ground (Large aluminum plate on upper left side of Main
Board) relay coil will read 12 VDC to ground and then zero VDC when activated, if
tested across relay coil then it will read 0 VDC if sitting idle, and 12 VDC when activated.
If a Power Failure Occurs unit will log the change of state i.e. switching to night mode
on re-start, when the unit is powered back up. The Power Failure error will be displayed
on the screen until the SELECT button is pressed acknowledging the Failure. Once the
SELECT button is pressed error will reset.
The Head Switch, Spigot Switch, Center Spigot Switch, Mix Low, and Mix Out Errors will
all Auto Reset after the problem has been rectied.
4. If 5.96 VDC is read on the black
wires but the U.I. Board does not
light up, the issue might lie with the
communication cable, and that it is
not making a good connection with
the U.I. Board. Check the connector
on the U.I. Board for damaged pins;
also check the communication cable
for loose wires in the cable connector
(Contact H.C. Duke & Son Factory
Tech Support).
184560 69
Page 80
Keep your freezer in excellent
condition — always contact
your H.C. Duke & Son, LLC.
QUALITY PARTS
PROTECT
YOUR
Distributor for replacement
parts and maintenance
INVESTMENT
scheduling.
NOTE: Contact your authorized H.C. Duke & Son, LLC. Distributor for instructions prior to
warranty compressor replacement.
Page 81
REPLACEMENT PARTS MANUAL
with Illustrations
SOFT SERVE
TWIST FREEZER
Model
GES-103
184560-01 — 11/18
H.C. Duke & Son, LLC. P/N 184560-01 Novewmber 2018 Printed In U.S.A.
Page 82
Page 83
Twin Twist Soft Serve Freezer Model GES-103
ILLUSTRATIONS
Parts are listed on each page using terminology that best ts the function of the part. It
is very important to know the serial number of the machine when ordering parts because
many parts are not interchangeable from one serial number to another of the same model.
The illustrations in this manual can be used as a reference for obtaining the correct part
description and part number.
All parts listed in the manual should be ordered through:
H. C. Duke & Son, LLC
2116 - 8th Avenue
East Moline, Illinois 61244
Telephone: (309) 755-4553 or (800) 755-4545
Fax: (309) 755-9858
E-mail: [email protected]
Part II
Replacement Parts
Figure 1 Head Assembly ............................................1
Figure 2 Beater Shaft Assembly
Figure 3 Cabinet Parts
Figure 4 MTS—RMT Hose Assembly
Figure 5 Mix Drawer
Figure 6 Mix Transfer System — RMT
Figure 7 Switch Box
Figure 8 Spigot Switch Assemblies
Figure 9 Capacitor & Relay Box
Figure 10 AC Side/Back View
Figure 11 WC Side/Back View
Figure 12 Panel Breakdown
Figure 13 Panel Hardware & Decals
Figure 14 Gear Reducer•
...............................................3
................................................... 5
...................................................8
...........................................15
.................................2
........................... 4
.........................6
............................10
.................................. 10
.....................................11
....................................12
.......................................13
...........................14
Figure 15 Evaporator Mix Tube Assembly
Figure 16 Air Cooled Remote Condenser
Accessories
O-Ring Chart
184560 iii
..............................................................18
.............................................................19
................... 16
...................17
Page 84
Page 85
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 1 Head Assembly
Item Part No. Description
* ................... HC119915-01 ........Head - Assy. Dispense (Complete)
1 .................. HC119913-01 ........Head - Assy. w/Actuator (Less Parts)
2 .................. HC118641 .............Spigot - Assy. Side w/Handle
3 .................. HC159295 .............O-Ring (Spigot)
4 .................. HC160584 .............O-Ring (Extension)
5 .................. HC136794 .............Rod - Spigot Switch
6 .................. HC162625 .............Knob - Hand
6A ................HC114341-01 ........Stud - Assy. Cylinder 3-13/16"(not shown)
7 .................. HC136713 .............Extension - Spigot
8 .................. HC160583 .............O-Ring (4" Head)
9 .................. HC160562 .............O-Ring (Air Bleed Plug)
10 ................ HC115129 .............Bleeder - Assy.(Air Relief Plug)
11 ................. HC162626 .............Handle - Tapered Black
12 ................ HC137018 .............Spigot - Long Center (w/o handle)
13 ................ HC136618 .............Rod - Handle, Center Spigot (Stainless Steel Extension only)
* Includes items 1-4 and 8-13.
184560 1
Page 86
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 2 Beater Shaft Assembly
Item Part No. Description
1 .................. HC196079 ............Bushing - Cylinder
2 .................. HC113438 .............Shaft - Assy. Beater
3 .................. HC137334 .............Blade - Scraper Soft Serve
4* ................. HC160500 .............O-Ring (Shaft Seal)
5* ................. HC133098 .............Washer - Shaft Seal
6* ................. HC160557 .............Seal - Beater Shaft
*Items 4-6 .... HC111875 .............Seal - Assy Shaft (Complete-3 piece shaft seal)
2 184560
Page 87
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 3 Cabinet Parts
5678
9
10
11
12
13
14
MIX FLOW
MIX FLOW
MIX FLOW
MIX FLOW
Item Part No. Description
1 .................. HC138783-01 ........Support - Roller Bearing
2 .................. HC139751 .............Shoe - Roller
3 .................. HC116009-01 ........Roller - Assy Complete
4 .................. HC138836 .............Hose - Transfer Red
5 .................. HC117092 .............Retainer - Air Line
6 .................. HC150016 .............Mix Cord
7 .................. HC150536 .............Receptacle
8 .................. HC150612 .............Switch
9 .................. HC121798 .............Cover - Assy Mix Pump Molded
10 ................ HC161313 .............Switch - Proximity Reed NC
11 ................. HC138799 .............Arm - Swing Clamp
12 ................HC162330 .............Spring - Compression
12A ..............HC140711 .............Washer - Spring End
13 ................ HC140706 .............Knob - Fluted 1/4-20 Custom
14 ................ HC141759 .............Drawer - Mix 10 Gal
*See Figure 4 for MTS Hose assembly.
4
3
2
1
184560 3
Page 88
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 4 MTS—RMT Hose Assembly
Item Part No. Description
1 .................. HC199032 ............Duckbill - Inlet
2 .................. HC138705-02 ........Connector - Bag In Box
3 .................. HC160727 .............Clamp - Plastic Ratchet
4 .................. HC196326 .............Tubing - Clear (Cut to Length)
5 ..................
HC116065 ............... Clamp - Assy Soft Hose 5/8”
6 ................... HC138836 .............. Hose - Transfer Red
7 ..................
8 ..................
HC121638 ..............Hose - Assy Mix Braided
HC121799 ..............Port - Assy Inlet Mix Level Molded
9 .................. HC150016 .............Mix Cord
10 ................. HC138170-02 ......... Tube - Air
11 .................. Meter-Air ................ (Order by meter number)
AIR METERS
Meter No. Part No.
9 HC163423
10 HC163424
11 HC163425
12 HC163426
13 HC163421
13.5 HC163421-05
14 HC163427
14.5 HC163427-05
15 HC163428
15.5 HC163428-05
16 HC163429
16.5 HC163429-05
17 HC163430
17.5 HC163430-05
18 HC163431
18.5 HC163431-05
19 HC163432
19.5 HC163432-05
20 HC163433
20.5 HC163433-05
21 HC163434
21.5 HC163434-05
22 HC163435
22.5 HC163435-05
23 HC163436
24 HC163437
25 HC163438
26 HC163439
28 HC163440
30 HC163441
31 HC163442
4 184560
Page 89
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 5 Mix Drawer
3
3
1
1
2
2
Item Part No. Description
1 .................................................Slide Assembly - Drawer Left
2 .................................................Slide - Drawer Right
3 .................. HC141759 .............Drawer - Mix 10 Gal
4 .................. HC162137 .............Roller - Drawer
4a ................ HC159403 .............Screw - Roller (NOT SHOWN)
4b ................ HC159402 .............Nut - Roller (NOT SHOWN)
4c ................. HC160190 .............Washer - Roller Spacer (NOT SHOWN)
4
4
184560 5
Page 90
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 6 Mix Transfer System — RMT (Breakdown)
32
40
3
4
7
5
25 22
21
1
19
6
13
2
31
43
28
4241
10
11
16
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6 184560
Page 91
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 6 Mix Transfer System — RMT (Parts)
Item Part No. Description
1 .................. HC121633 .............Faceplate - Assy MTS Liner Left
2 .................. HC160093 .............Screw - TRPS 1/4 - 28X2 - 1/4 SST
3 .................. HC138793 .............Spacer - Motor
4 .................. HC121767 .............Kit - GES Pump Motor 1/6 HP 115/208 - 230/1/60
Includes:
HC139046-01 .... Gauge - Shaft Alignment RMT
HC160173 .........Washer - Spring Wave
or ................. HC151161 .............Gearmotor - 1/8 HP 208-230/3/60
5 .................. HC139756 .............Shield - Drip
6 .................. HC165524-01 ........Block - Insulation GES
7 .................. HC160173 .............Washer - Spring Wave SST
8 .................. HC191527 .............Blank - Backup MTS
9 .................. HC116009 .............Roller - Assy Complete
10 ................ HC138783-01 ........Support - Roller Bearing
11 ................. HC165048 .............Decal - Warning Rotating Parts
12 ................ HC160464 .............Nut - Hex 3/8 - 16 SST
13 ................ HC159933 .............Nut - HXSF 1/4 - 20 SST
14 ................ HC160338 .............Pin - Dowel 1/4 Dia X 3/4 SST
15 ................ HC160386 .............Stud - 5/16 - 18 X 3/4 SST
16 ................ HC160465 .............Screw - HXHC 1/4 - 20X3 1/2 SST
17 ................ HC138797 .............Arm - Shoe Pivot
18 ................ HC138799 .............Arm - Swing Clamp
19 ................ HC138800 .............Spacer - Swing Arm
20 ................ HC139751 .............Shoe - Roller
21 ................ HC160169 .............Washer - Flat 3/8 SST
22 ................ HC160170 .............Washer - Lock 3/8 SST
23 ................ HC160612 .............O Ring (ARP - 111 .438 Id X .625 Od X .094)
24 ................ HC160628 .............O - Ring
25 ................ HC159927 .............Nut - Hex 3/8 - 16 SST
26 ................ HC160140 .............Washer - Lock #10 ZN
27 ................ HC160075 .............Screw - RDHM #10 - 24X3/8 ZN
28 ................ HC161302 .............Switch - Slide/Cover
29 ................ HC162330 .............Spring - Compression .79Diax1.51x.088SST
30 ................ HC140706 .............Knob - Fluted 1/4 - 20 Custom
31 ................ HC118763 .............Bracket - Assy Switch Mtg
32 ................ HC121672 .............Cover - Assy Pump Motor (1ph only)
33 ................ HC140711 .............Washer - Spring End
34 ................ HC120504 .............Clamp - Assy Swing 1/4 - 20
35 ................ HC121654 .............Cover - Assy Mix Pump
36 ................ HC138890 .............Lanyard - Wire
37 ................ HC138889 .............Knob - Cover RMT
38 ................ HC165246 .............Decal - Warning Pressurized
39 ................ HC121798 .............Cover - Assy Mix Pump Molded
40 ................ HC159919 .............Screw - HXSF 1/4 - 20 X 3/8 ZN (1ph only)
41 ................ HC160357 .............Screw - RDHM #4 - 40X1/4 STL
42 ................ HC160393 .............Washer - Flat #6 Brass
43 ................ HC159939 .............Screw - HXSF 1/4 - 20X11/16 SST
184560 7
Page 92
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 5 3PH Mix Transfer System - RMT (Breakdown)
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8 184560
Page 93
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 5 3PH Mix Transfer System - RMT (Parts)
Item Part No. Description
* ................... HC121634-02 ........MTS - Assy Cab Red Line/Relief Bisn (3 Ph) LH
* ................... HC121634-03 ........MTS - Assy Cab Red Line/Relief Bisn (3 Ph) RH
1 .................. HC121798. ............Cover - Assy RMT
HC165246.........Decal - Warning Pressurized
HC138889.........Knob - Cover RMT
HC138890.........Lanyard - Wire
HC160508.........Sleeve - Cable Stop 3/64
2 .................. HC160386 .............Stud - 5/16 - 18 X 3/4 SST
3 .................. HC160464 .............Screw - HXHC 1/4 - 20X2 1/2 SST
4 .................. HC160465 .............Screw - HXHC 1/4 - 20X3 1/2 SST
5 .................. HC120633 .............Support - Assy
6 .................. HC120504 .............Clamp - Assy Swing 1/4 - 20
7 .................. HC140711 .............Washer - Spring End
8 .................. HC162330 .............Spring - Compression .79Diax1.51x.088SST
9 .................. HC140706 .............Knob - Fluted 1/4 - 20 Custom
10 ................ HC160612 .............O Ring
11 ................. HC160628 .............O-Ring
12 ................ HC139751 .............Shoe - Roller
13 ................ HC138799 .............Arm - Swing Clamp
14 ................ HC138797 .............Arm - Shoe Pivot
15 ................ HC116009 .............Roller - Assy Bearing
16 ................ HC160338 .............Pin - Dowel 1/4 Dia X 3/4 SST
17 ................ HC138800 .............Spacer - Swing Arm
18 ................ HC160093 .............Screw - Trps 1/4 - 28X2 - 1/4 SST
19 ................ HC191527 .............Blank - Backup MTS
20 ................ HC121633 .............Faceplate - Assy MTS Liner LH
or ................. HC121633-01 ........Faceplate - Assy MTS Liner RH
21 ................ HC160357 .............Screw - Rdhm #4 - 40X1/4 STL
22 ................ HC160393 .............Washer - Flat #6 Brass
23 ................ HC161302 .............Switch - Slide/Cover
24 ................ HC159939 .............Screw - Hxsf 1/4 - 20X11/16 SST
25 ................ HC118763 .............Bracket - Assy Switch Mntg
26 ................ HC160169 .............Washer - Flat 3/8 SST
27 ................ HC160170 .............Washer - Lock 3/8 SST
28 ................ HC159927 .............Nut - Hex 3/8 - 16 SST
29 ................ HC159933 .............Nut - Hxsf 1/4 - 20 SST
30 ................ HC165524-01 ........Block - Insulation GES
31 ................ HC139756 .............Shield - Drip
32 ................ HC138793 .............Spacer - Motor
33 ................ HC160173 .............Washer - Spring Wave SST
34 ................ HC151161 .............Gearmotor - 1/8 Hp 208 - 230/3/60 270 RPM
* Includes all items above.
184560 9
Page 94
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 7 Switch Box (Breakdown)
TOP VIEW
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121315
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FRONT VIEW
10 184560
Page 95
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 7 Switch Box (Parts)
Item Part No. Description
1 .................. HC121272 .............Box - Assy Electrical Weldment
2 .................. HC150076 .............Contactor – 3P 25A 24V Coil BF25
3 .................. HC150591 .............Block - Terminal
4 .................. HC150594 .............Stop - Terminal Block End
5 .................. HC150181 .............Transformer - Cl2 208/240PRI/24SEC
6 .................. HC160237 .............Standoff - Hex Male/Female #6-32 5/8
7 .................. HC150927 .............Support - 5/8 Circuit Board
8 .................. HC150038 .............Support - 1/2 Circuit Board
9 .................. HC151702 .............Board - PC Relay
10 ................ HC150182-01 ........Breaker - Circuit 4A Threaded
11 ................. HC141350 .............Insulator - Relay Board
12 ................ HC150994-05 ........Board - PCB UI B.5090
13 ................ HC113903 .............Switch - Assy Spigot
14 ................ HC151708 .............Switch - Disconnect
15 ................ HC151708-01 ........Switch - Disconnect 4th Pole Add On
16 ................ HC150098 .............Socket - Miniature Relay DPDT
17 ................ HC150166 .............Clip - Miniature Relay Retaining
18 ................ HC150044 .............Relay - Miniature DPDT 230V Au Contact
19 ................ HC150343-01 ........Relay - Control Flange DPDT 12VDC
20 ................ HC150999 .............Anchor - Din Rail
21 ................ HC151709 .............Knob - Rotary Disconnect
22 ................ HC150033 .............Membrane - Cab
23 ................ HC151698 .............Board - PC Main B.4865
Not Shown:
HC150018 ...................Fuse - 5 X 20mm 3A Slow Blow
184560 11
Page 96
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Item Part No. Description
* ................... HC113903 .............Switch - Assy. Spigot (Side)
1 .................. HC150456 .............Switch - Snap Button
2 .................. HC160393 .............Washer - Flat #6
3 .................. HC160392 .............Washer - Ext. Tooth #6 ZN
4 .................. HC160296 .............Screw - RDHM #6-32 x 1-1/4 SST
5 .................. HC162321 .............Spring - Spigot Switch
6 .................. HC136124 .............Button - Spigot Switch
7 .................. HC160303 .............Ring - Retaining 1/2 External
8 .................. HC113902 .............Bracket - Assy. Spigot Switch Mtg.
9 .................. HC113901 .............Bracket - Assy. Adjusting
10 ................ HC160267 .............Screw - RDHM #8-32 x 7/8 Brass
11 ................. HC160102 .............Nut - HEX #8-32 ZN
12 ................ HC135744 .............Insulator - Switch
* Includes items 1-12.
Figure 9 Capacitor & Relay Box (1 phase)
Figure 8 Spigot Switch Assemblies
x2
Item Part No. Description
1 .................. HC150029 .............Relay - Compressor
2 .................. HC160739 .............Clamp - Hose 3-9/16 – 4-1/2 Screw
3 .................. HC150294 .............Capacitor - Start (Bluffton Motor)
4 .................. HC150244 .............Capacitor - Run (Bluffton Motor)
5 .................. HC150403 .............Capacitor - Run (Copeland Compressor)
6 .................. HC151445 .............Capacitor - Start (Copeland Compressor)
12 184560
Page 97
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 10 AC Side/Back View (Lower Cab)
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Item Part No. Description
1 .................. HC121872 .............Kit - Cabinet Compressor w/Relay & Cap
2 .................. HC121619 .............Condenser - Assy GES High Cap Includes:
HC120151 ...... Shroud Condenser
HC155139 ...... Condenser 8X8
3 .................. HC162132-01 ........Caster - 1-14 Stem W/O Brake
4 .................. HC162131-01 ........Caster - 1-14 Stem W/Brake
5 .................. HC121634-01 ........MT - Assy. W/Relief CCW (A Side)
6 .................. HC121634 .............MT - Assy. W/Relief CW (B Side)
7 .................. HC154948 .............Compressor - Scroll ZS19KAE-TF5
Not Shown:
HC161216 .............Sensor - 10K Thermistor (Mix Feed Tube)
HC161222 .............Sensor - Temp 10K NTC W/Molex & Jacket (Cabinet)
HC161212-01 ........Sensor - NTC Temperature 10K W/Molex (Cylinder)
HC121441 .............Transducer (to pressure switch) Replacement Kit
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4
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184560 13
Page 98
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
11
Figure 11 WC Side/Back View (Upper Section)
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Item Part No. Description
1 ................... HC155405 .............. Cut Out - High Pressure
2 ................... HC155701 .............. Cut Out - Low Pressure
3 ................... HC112080 ...............Valve - Assy Water
4 ................... HC153341 .............. Reducer - Gear 4CB Wintwin
5 ................... HC111964 ............... Coupling - Assy 1 In Drive
6 ................... HC155071 .............. Receiver - 3Lb 3/8 ID Sweat W/O Valve
7 ................... HC155054 .............. Drier - Filter 16 Cu In
8 ................... HC155059 .............. Glass-Sight
9 ................... HC155459 .............. Glass - Sight
10 ................. HC155498 .............. Drier - Filter W/Access
10A ............... HC155399 .............. TXV Valve (Not Shown)
11 .................. HC155495 ..............Heat Exchanger
12 ................. HC155395 .............. Valve - Solenoid Body 3/8 ODM
12A ............... HC151477 .............. Coil - Solenoid 208-240V MKC-1TS
13 ................. HC155494 .............. Distributor - Refrigerant
14 ................. HC165531 .............. Insulator - Expansion Valve
15 ................. HC155493 .............. Valve - Automatic Expansion
16 ................. HC155029 .............. Condenser - Water
17 ................. HC153625 .............. Sheave - 3/4 Bore 4.75 OD 4.50PD
18 ................. HC153171 ..............
18A ...............
19 ................. HC153322 .............. Key - Drive 3/16 Sq X 1 1/2
20 ................. HC151052-01 ......... MOTOR - 2HP 208/230/460-3-60
21 ................. HC153626 .............. Sheave - 7/8 Bore 3.25 Od 3.00PD
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Belt - V (LH - A Side)
HC153161 .............Belt - V (RH - B Side)
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14 184560
Page 99
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 12 Panel Breakdown
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Item Part No. Description
1 .................. HC121649 .............Panel - Door 26 In
2 .................. HC121613 .............Air Curtain
3 .................. HC121609 .............Panel - Assy Front
4 .................. HC141726 .............Panel - Side RH
5 .................. HC141729 .............Channel - Rear RH
6 .................. HC141728 .............Panel - Rear
7 .................. HC141730 .............Channel - Rear LH
8 .................. HC141355 .............Panel - Top
9 .................. HC141727 .............Panel - Side LH
10 ................ HC140128-01 ........Panel - Dispense
11 ................. HC115132 .............Insert - Assy. Drip Tray
12 ................ HC196336 .............Tray - Drip 26” White Molded
13 ................ HC141352 .............Trimstrip - Upper 26In
14 ................ HC141353 .............Trimstrip - Lower 26In
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4
AC = Air Cooled
WC = Water Cooled
ACR = Air Cooled Remote
LH = Left side of freezer when facing front.
RH = Right side of freezer when facing front.
Not Shown:
HC160574 .............Gasket - Door Magnetic
HC118597 .............Actuator - Assy Door Switch
184560 15
HC162071...Latch - Door
Page 100
Twin Twist Soft Serve Freezer Model GES-103
Use only original or authorized replacement parts with this freezer.
Use of unapproved parts will void warranty.
Figure 13 Panel Hardware & Decals
Hardware for Panels
Panel Screw Nut-Speed Spacer Nut-Speed
Channel-Rear HC160048 HC160117 n/a n/a
Dispense HC160076 HC159132 HC138456 n/a
Front HC160076 HC159132 n/a HC159067
Rear HC160048 HC160114 HC138456 n/a
Side HC159219 HC160114 HC138456 n/a
Top HC160305 n/a n/a n/a
Trimstrip HC160076 n/a n/a n/a
n/a – Not Applicable
on Frame
Panel Decals & Labels
Part No. Description
HC165119 6" Air Flow
HC165025 Beater Warning
HC164031 Blade Installation
HC164452 Cleaning Instructions
HC165093 Clear Overlay
HC165013 CMT Patent
HC165002 General Purpose Receipt
HC164127 Operating Instructions
HC165126 Panel Removal
HC165124 Top Air Discharge
HC165440-02 Trimstrip IDQ 26”
HC164477-01 Trimstrip LH
HC164021-01 Trimstrip RH
HC165246 Warning - Pressurized
HC164444 MTS Connect
HC167022 Fitting Alignment CW
HC167022-01 Fitting Alignment CCW
16 184560
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