H.c duke & son Freedom 360 degrees series Setup guide

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DUKE Soft Serve Freezer Model 927CMT

184617

with Illustrated Parts List

P/N 184617 August 2008 Printed in U.S.A.

OPERATOR'S MANUAL

FREEDOM 360º

Series

SOFT SERVE FREEZER

MODEL 927CMT

184617-8/08

Operator’s Manual

for the

Soft Serve Freezer

Model 927CMT

i

184617

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DUKE Soft Serve Freezer Model 927CMT

184617

DANGER

SAFETY FIRST!SAFETY FIRST!

SAFETY FIRST!

Follow these four steps to safety ....

1. Recognize Safety Information ....Look for this safety

alert symbol throughout this manual.

When you see this symbol on your freezer or in this

manual, be alert to the potential for personal injury.

Follow recommended precautions and safe operating

practices.

2. Understand Signal Words ....

T

he 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 identi-

fies the most serious hazard. Decals with the words

DANGER or WARNING are typically near specific

hazards on the freezer. General precautions are

listed on CAUTION safety decals.

In this manual, CAUTION messages with the safety

alert symbol call attention to safety messages.

WARNING

CAUTION

ii

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DUKE Soft Serve Freezer Model 927CMT

184617

SAFETY FIRST!SAFETY FIRST!

SAFETY FIRST!

DO NOT allow untrained personnel to maintain or

service this machine. Failure to follow this instruction

may result in severe personal injury. DO NOT

operate the freezer until all service panels and

access doors are secured with screws. DO NOT

attempt to maintain or repair the freezer until the

main power supply has been disconnected. Some

freezers have more than one disconnect switch.

Contact H. C. Duke & Son for original equipment

parts.

Safety

First!

iii

Read and understand all safety messages in this

manual. Read and understand the decal safety

messages on your freezer. Take notice of the

location of all decals on the freezer and keep the

safety decals in good condition. Check them

periodically and replace missing, damaged or

illegible safety decals. The safety decals must

remain in place and legible for the life of the freezer.

If you need new decals, use the information and

illustrations on pages iv and v of this manual to

identify the decal and call or write to H.C. Duke &

Son, Inc.

DO NOT attempt to operate the 927CMT freezer

until you read and understand all safety messages

and the operating instructions in this manual.

4. Operate Safely ....

3. Follow Safety Instructions ....

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123456789012345

DUKE Soft Serve Freezer Model 927CMT

184617

No. Part No. Description (Qty)

1HC165025 Decal — Beater Warning (1)

2HC165246 Decal — Pressurized System (1)

3HC165126 Decal — Panel Removal Warning (3)

iv

Safety Decal Locations

For factory service assistance, contact

H. C. Duke & Son, Inc., 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, and 3. Those numbers

correspond to the numbers in the table

below. The table provides the part

number, description, and quantity for

each decal.)



Do not attempt to operate the freezer

until all safety precautions and operat-

ing 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

figure 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 periodi-

cally to be sure they can be recognized

as warning labels.

If it is necessary to replace any label,

please contact H.C. Duke & Son, Inc.

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.

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DUKE Soft Serve Freezer Model 927CMT

184617

Safety Decal Locations

v

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 HC165025

1

WARNING

!

Hazardous moving parts.

Machine starts automatically.

Do not operate with panel

removed.

P/N

HC165126

3

P/N HC165246

3

2

Pressurized system.

Depressurize unit

before dismantling

mix transfer system.

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DUKE Soft Serve Freezer Model 927CMT

184617

Table of Contents

Safety First !

......................................................................... ii

Safety Decal Locations ...................................................... iv

Part I

1 Introduction

............................................................................. 1

2 Note to Installer

...................................................................... 1

2.1 Uncrating and Inspection ..................................................... 2

2.2 Installation ........................................................................... 3

2.3 Electrical Requirements ....................................................... 3

2.4 Electrical Connections ......................................................... 4

3 Specifications

.......................................................................... 5

3.1 Particulars ........................................................................... 5

3.2 Dimensions .......................................................................... 5

3.3 Data Plate ............................................................................ 6

3.4 Reference Information.......................................................... 6

3.5 Installation Date ................................................................... 7

4 Part Names and Functions

.................................................... 8

4.1 Head Assembly .................................................................... 8

4.2 Beater Shaft ....................................................................... 10

4.3 Mix Transfer System (MTS) ................................................. 11

5 Operator Controls and Indicators

...................................... 12

5.1 Selector Switch .................................................................. 12

5.2 Mix Transfer System Switch (MTS) ...................................... 13

5.3 Cabinet Switch ................................................................... 13

5.4 Timer ................................................................................. 13

5.5 Reset - Overload................................................................. 13

5.6 Outlet ................................................................................. 14

5.7 Pilot Lights ......................................................................... 14

5.8 Indicator Lights “Add Mix’ ................................................... 14

5.9 Probe - “Add Mix” ............................................................... 15

5.10 Thermometer - Cabinet ....................................................... 15

vi

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DUKE Soft Serve Freezer Model 927CMT

184617

Table of Contents (continued)

vii

Model 927CMT Replacement Parts Manual with Illustrations ...................

*

*Refer to Part II Table of Contents for help with locating part numbers and illustrations.

6 Disassembly and Cleaning

.................................................. 16

6.1 Cleaning Accessories ......................................................... 17

6.2 Disassembly Instructions ................................................... 18

6.3 Cleaning Instructions ......................................................... 20

7 Assembly

................................................................................ 22

8 Start-up Instructions

........................................................... 26

8.1 Sanitizing ........................................................................... 26

8.2 Priming .............................................................................. 28

8.3 Dispensing Product ............................................................ 29

9 Closing Procedures

.............................................................. 30

9.1 Draining Product ................................................................ 30

10 General Information

............................................................. 32

10.1 Dairy Queen

®

Mix ................................................................ 32

10.2 Checking the Frozen “DQ” Product ..................................... 32

10.3 Product Temperature ......................................................... 33

10.4 Overrun.............................................................................. 33

10.5 Overrun Adjustment ........................................................... 34

10.6 Rerun ................................................................................. 34

10.7 Overrun Chart .................................................................... 35

11 Routine Maintenance

........................................................... 36

12 Troubleshooting Charts

...................................................... 44

Part II

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DUKE Soft Serve Freezer Model 927CMT

This freezer must be installed and serviced by an authorized service techni-

cian in accordance with the installation instructions.

After installation the warranty registration card must be completed and re-

turned to validate warranty.

2 Note to Installer

The 927CMT 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 (4.4°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 mainte-

nance of your Duke freezer.

Your freezer will not compensate for or

correct any assembly or priming errors

made during the initial start-up. There-

fore 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.

Name ______________________

Address_____________________

____________________________

Phone_______________________

orH.C.Duke&Son,Inc.ServiceDept.for

factoryserviceassistance.

Phone: (309)755-4553

(800)755-4545

Fax: (309)755-9858

E-mail: [email protected]

If you require technical assistance,

pleasecontactyourlocalservicecompany:



1 Introduction

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DUKE Soft Serve Freezer Model 927CMT

2.1 Uncrating and Inspection

Figure 2-1 Machine Bolted to Shipping Base

CAUTION

Be sure to properly sup-

port the machine when

removing bolts and install-

ing legs or casters.

When the unit is received and while the

carrier is still present, inspect the ship-

ping 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 (figure 2-1)

and install either the legs or casters

(figure 2-2).

Figure 2-2 Installing Mounting Legs or Casters

FRONT

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DUKE Soft Serve Freezer Model 927CMT

2.2 Installation

1. Where codes permit, we recom-

mend that the freezer be installed

on casters and have flexible water

and electrical connections for

easier service and cleaning.

2. All models require a minimum six

(6") clearance on either the side

panels or the rear panel for

adequate ventilation. The top

panel must be free from obstruc-

tions. Anything (including cone

dispensers) in this area will

reduce the efficiency of these

models.

CAUTION

All materials and connections

must conform to local

requirements and be in

compliance with the National

Electrical Code (NEC).

3. Water cooled double models will

require a 1/2" MPT water inlet and

water waste connection. Both

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 be-

tween 35-140 psig (241-965 kPa)

for proper operation.

4. Place the freezer in the final loca-

tion 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.

CAUTION

To prevent accidental

electrical shock, a positive

earth ground is required.

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.

2.3 Electrical Requirements

1. Always verify electrical specifica-

tions on the data plate of each

individual freezer. Data plate speci-

fications will always supersede the

information in this manual.

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123456789012345

DUKE Soft Serve Freezer Model 927CMT

CAUTION

To prevent accidental

electrical shock, a positive

earth ground is required.

2.4 Electrical Connections

1. Double freezers with two compres-

sors require one power supply for

each side of the freezer. Each side

of the freezer operates indepen-

dently.

2. Check the data plate for fuse size,

wire ampacity, and electrical speci-

fications.

3. Refer to the wiring diagram pro-

vided for proper power connections.

4. Electrical connections are made in

the junction boxes located mid-level

behind the left side panel.

5. Use a flexible connection when

permissible. All materials and

connections must conform to local

codes and the National Electrical

Code.

6. For 3 phase freezers, beater shaft

rotation must be clockwise as

viewed from the front of the freezer.

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DUKE Soft Serve Freezer Model 927CMT

The dimensions of the 927CMT are provided in Figure 3-1, below.

Figure 3-1

3 Specifications

3.1 Particulars

3.2 Dimensions

Example of standard 927CMT freezer:

Width-in./cm 26/66

Height-in./cm 68.2/173

Depth-in./cm 36.5/93

Weight-lbs./kg 847/384

Compressor (2) 2 H.P. /9500(BTUH)

1.5 kw (Motor)

2.8 kw (Cooling)

Beater Motor (2) 2 H.P/1.5 kw

Refrigerant 404a

*Charge 3.75 lb/1.7 kg

Mix Container (2)

28 Qts./26.6

Liters

Cylinder (2) 4 Qts./3.8 Liters

*For each side.

Always check and verify voltage and amperage on the data plate

located on the back panel of each freezer.

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123456789012345

DUKE Soft Serve Freezer Model 927CMT

3.3 Data Plate

3.4 Reference Information

Fill in the following information below as soon as you

receive the 927CMT. (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 Minimum Circuit Ampacity: _____________

5 Maximum Fuse Size: __________________

Write in

Reference Informa-

tion HERE!

(

The date plate provides important

information that the operator

should record and have available

for parts ordering, warranty inquir-

ies, and service requests.

Figure 3-2 Data Plate

184617

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DUKE Soft Serve Freezer Model 927CMT

3.5 Installation Date

Fill in the date of installation, and the name, address, and phone number of the

installer in the space provided below. This information will be needed when order-

ing parts or service for your freezer.

Installation Date: ______________________________

Installed by: ______________________________

Address: ______________________________

______________________________

Phone: ______________________________

184617

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DUKE Soft Serve Freezer Model 927CMT

4 Part Names and Functions

Figure 4-1 Head Assembly

4.1 Head Assembly

184617

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123456789012345

DUKE Soft Serve Freezer Model 927CMT

The following descriptions apply to figure 4-1. The number preceding the part

name corresponds to the number in the figure.

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 O-RING - HEAD

Seals the head to the freezing cylin-

der. Must be lubricated.

3 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.

4 O-RING - PLUG

Seals the air bleed plug in the head.

Must be lubricated.

5 ROD - SPIGOT

Starts the freezer when dispensing.

Must be in place before freezer will

operate when dispensing.

6 SPIGOT - ASSEMBLY

Seals the product opening in the

head when closed. Allows product to

flow when open.

7 O-RING - SPIGOT

Seals the spigot in the head. Must

be lubricated to seal and slide

properly.

8 O-RING - SPIGOT EXTENSION

Holds the extension on to the

spigot.

9 KNOB - HAND

Secures the head to the freezing

cylinder.

10 EXTENSION - SPIGOT

(Accessory)

Extends the product opening down

to aid in cake-making process.

4.1 Head Assembly — continued

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DUKE Soft Serve Freezer Model 927CMT

4.2 Beater Shaft Assembly

Figure4-2 BeaterShaft

Thefollowingdescriptions applytofigure 4-2.Thenumber precedingthepart name

correspondstothenumber inthefigure.

1 BUSHING-CYLINDER

Holdsthebeaterinplaceat thefrontof

thecylinder. Center hole must be

lubricated.

2 SHAFT-BEATER

Rotatesinthefreezingcylinder,

blendingair andmixasit ejects

product.

3 BLADE-SCRAPER

Scrapesthefrozenproductfromthe

freezingcylinderwall.

4 O-RING-SHAFTSEAL

Sealsthe beatershafttotheshaft

seal.Is insertedintothe shaftseal

washer.Mustbelubricated.

5 WASHER-SHAFTSEAL

Holdstheshaftsealo-ring. Lightly

lubricatethe side oppositethe cup

seal.

6 SEAL(CUP)-BEATERSHAFT

Sealstheopeningbetweenthefreezing

cylinderandthebeatershaft. Donot

lubricaterubber cupportion.

184617

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123456789012345

DUKE Soft Serve Freezer Model 927CMT

1 MIX TRANSFER SYSTEM

(MTS)

Transfers mix and air from the

storage cabinet to the freezing

cylinder.

2 MTS HANDLE

Moves the MTS slide up and

down to engage the transfer

hose with MTS rollers. Allows

access to transfer hose.

3 MTS SWING HOOK

Secures the MTS slide in

position, ensuring contact with

rollers. MTS will operate only

when swing hook is secured.

4 MTS SLIDE

Sets the transfer hose in proper

position under rollers.

5 PICKUP TUBE

Carries mix from the mix

container to MTS.

6 DUCKBILL CHECK VALVE

Keeps mix in the pickup tube

from flowing back into the mix

container.

Figure 4-3 Mix Transfer System (MTS)

The following descriptions apply to figure 4-3. The number preceding the part

name corresponds to the number in the figure.

4.3 Mix Transfer System (MTS)

DUCKBILL CHECK VALVE

6

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DUKE Soft Serve Freezer Model 927CMT

CAUTION

Test operation of the head

switch prior to placing the

freezer in service. See Section

11, Routine Maintenance,

Monthly.

NOTE: The beater will not operate with

the dispense head removed.

5 Operator Controls

Refer to figure 5-1 for location of these controls and indicators on the 927CMT.

5.1 Selector Switch 1

This three-position switch controls the functions of your freezer.

A. "CLEAN" (Left Position) - This

position operates the beater only (no

refrigeration to the cylinder). Always

use this mode in all cleaning and

sanitizing operations.

B. "OFF" (Center Position) - In this

position the beater motor will not

operate and no refrigeration will be

provided to the cylinder.

C. "AUTO" (Right Position) - This

position activates both the beater

motor and refrigeration unit. This is

the normal operating position.

IMPORTANT:

DO NOT use the AUTO position with

water or sanitizer in the cylinder—the

freezer will be damaged.

Figure 5-1 Controls and Indicators

H.C Duke & Son Freedom 360 Degrees Series Setup guide

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