Diamond DST/2-15 AG Operating instructions
014/202
MOD :
DST/2-15AG(230/3)
Production code : SOFTGEL 320 AIR (230/3)
Translation of the original instructions
Operating and maintenance manualOperating and maintenance manual
DST/2-15 AG -DST/2-15 AG - DST/2-27 AGDST/2-27 AG
2
3
Thank you for choosing this machine. Please read this manual which will allow you to use the machine in
a way that is safe for you and for others. While reading the manual, take the time to familiarise yourself
with the new machine and you will be able to appreciate all of its advantages. You will see that it is user-
friendly and how it can easily change your working process, optimising it and making it more protable.
You will understand how the technology used will be of great help to your business. DIAMOND machines
are the product of years of experience manufacturing machines for processing foodstus. The quality
of our machines makes them competitive, reliable, user-friendly, low maintenance, quiet, safe and
ergonomic.
To keep your machine in proper working order, you must carry out the routine maintenance indicated in
the manual. Daily cleaning is fundamental and ensures that machines remain reliable.
To allow us to make sure that the manuals we issue are complete and cover all possible subjects, please
send us any comments based on your direct experience of using the machine.
For operator safety and machine integrity, the machine must only be used for the purpose for which it
was built. Therefore, any modications to the machine, any part of its design, safety device or system is
strictly forbidden. Such changes will void any guarantees. The manufacturer declines all responsibility
in the event of substitution of components with non-original parts, improper use, tampering, lack of
maintenance, removal of safety devices and, more generally, any change made to the original design.
Our qualied technical assistance service is always available to you if you have any questions.
Please contact your dealer to solve any technical issues. Do not attempt to solve them yourself, since
this may result in serious danger.
All of the sta at DIAMOND and its dealers hope that you will enjoy working with our machines!
This operating and maintenance manual is part of the machine and must always be kept with it, even
if the machine is sold to a new buyer.
Introduction
Contents
4
CONTENTS
1 GENERAL INFORMATION 7
1.1 General safety instructions 7
1.2 Information about precautions, specific warnings and symbols 7
1.3 Testing, guarantee and liability 8
1.4 Purpose of the manual 8
• 1.4.1 Structure of the manual 8
•
•
• 1.5.2 Ordering spare parts 10
1.6 Machine identification data - CE marking 10
1.7 Intended uses 11
• 1.7.1 Reasonably foreseeable improper use 11
1.8 Information for personnel authorised to use the machine 11
•
•
2 TECHNICAL SPECIFICATIONS 13
2.1 General description of the machine 13
2.2 Illustration of the machine as a whole and its components 14
2.3 Working and control position 16
2.4 Machine technical data 16
2.5 Noise 17
2.6 Items supplied with the machine 18
3 GENERAL SAFETY REGULATIONS 18
3.1 General instructions 18
3.2 Safety symbols and stickers 20
3.3 Personal Protective Equipment (PPE) 20
• 3.3.1 Clothing 20
• 3.3.2 Gloves (hand protection) 20
• 3.3.3 Hair cover 20
4 INSTALLATION INSTRUCTIONS 21
4.1 General requirements 21
4.2 Ambient conditions 21
4.3 Spaces needed for use of the machine 22
4.4 Installation and assembly sequences of machine components 22
4.5 Electricity supply 23
4.6 Air-cooled machine 24
4.7 Water-cooled machine 25
5
5 MACHINE OPERATION 26
5.1 Controls 26
5.2 Switching on and starting the machine 28
• 5.2.1 Filling of the cylinder for each mix reserve tank
5.3 Programming 30
• 5.3.1 Adjusting the CONSISTENCY of the ice cream (P1) 31
• 5.3.2 Adjusting the PRESERVATION of the ice cream (P2) 31
• 5.3.3 Adjusting the TEMPERATURE of the mix reserve tanks (P3) 32
• 5.3.4 Adjusting the maximum CONSISTENCY of the ice cream (Po) 32
5.4 Production 33
5.5 Preservation 35
6 WASHING 36
6.1 Washing and sanitising 36
• 6.1.1 Sanitising steps 36
7 ROUTINE MAINTENANCE 47
7.1 Type of checks and interval between them 47
7.2 Maintenance work 47
7.3 Maintenance intervals and time needed 47
7.4 Maintenance sheets 48
8 TROUBLESHOOTING 50
8.1 General alarm indications displayed on the control panel – causes and solutions 51
8.2 Troubleshooting – flowchart 54
9 INACTIVITY 57
10 DECOMMISSIONING THE MACHINE 58
10.1 Description of method of disposal 58
Introduction
Contents
6
7
1 GENERAL INFORMATION
1.1 General safety instructions
Before using the machine, carefully read all of this manual, which is an integral part of the machine.
The person in charge of machine use and/or the employer must make sure that users are trained and aware of all information
and instructions in the documentation supplied.
Users are only permitted to carry out work on the machine which is within their area of responsibility and for which they
have been trained.
Reliable operation and optimised machine performance are only guaranteed by the use of original spare parts. The man-
ufacturer reserves the right to make any changes considered appropriate to the machine described without prior notice.
1.2 Information about precautions, specic warnings and symbols
Where necessary, this manual includes information alongside machine operating and maintenance instruc-
tions or procedures.
There are also indications marked with the “Caution/Danger” symbols, shown in bold type and upper case
letters to make them clearly visible.
The “GENERIC CAUTION/DANGER” symbol is used to indicate that failure to comply with the safety
regulations described in this manual could result in “Damage to the machine and/or objects and injury to
machine users”.
Chapter 1
General Information
8
1.3 Testing, guarantee and liability
Testing
Before being sent to the customer, the machine must successfully pass testing by the manufacturer.
Guarantee
The manufacturer guarantees the machines put on the market for 12 months from the date of delivery. During the guaran-
tee period the seller undertakes to substitute, free of charge ex works, any parts which may develop a fault due to obvious
manufacturing defects or poor quality materials. Parts substituted remain the property of the manufacturer and must be
returned to its premises, free of all charges. If the substitution of defective machine parts requires work by technical person-
nel, labour costs and any travel and accommodation expenses will be charged to the buyer. Top ups of refrigerant gas are
not covered by the guarantee. The guarantee shall be void if the machine is used in a way that does not conform to what is
indicated in the manufacturer’s “operating and maintenance manual”. The guarantee shall be void if the user, deliberately or
from the manufacturer. The guarantee shall also be void if the electric and water connections used to supply the machine,
(which are the buyer’s responsibility), are made in a way that does not conform to what is indicated in the machine “operating
and maintenance manual”. Interruption of the payment agreed in the sales proposal and accepted by the seller will result
in suspension of the guarantee.
Liability
The manufacturer declines any responsibility and obligation for any incident involving persons and objects resulting from
use of the machine in any way that does not conform to what is indicated in the “operating and maintenance manual” and/
or due to manufacturing defects of the components/materials present in the machine. It shall also be considered expressly
excluded from any other claim for reimbursement for lost earnings attributable to any failure to operate.
1.4 Purpose of the manual
This manual was drawn up with the aim of providing all machine users, in the most complete and clearest way possible,
with all information necessary for machine installation, use and routine maintenance, from the time the machine reaches
the market until the day it is decommissioned and/or scrapped.
It also lists all procedures useful for dealing with emergencies which may arise during use of the machine as described by
the manufacturer and those which are reasonably foreseeable.
IMPORTANT NOTE: THE MANUAL DOES NOT SUBSTITUTE TECHNICAL TRAINING FOR PERSONNEL WHO
WILL USE THE MACHINE. IT SHOULD BE CONSIDERED A GUIDE TO THE USE OF MACHINE FUNCTIONS.
1.4.1 Structure of the manual
-
pretation and implementation of the activities required for machine operation and maintenance.
This manual includes all instructions with which the user must be familiar and information which the user may consult in
order to achieve the aims of the manual.
9
1.4.2 Modications and additions
machine.
EUROPE S.A. to apply such changes to a machine previously supplied, nor to consider it and the related manual lacking
and inadequate.
DIAMOND EUROPE S.A. reserves the right, should it deem it appropriate and for valid reasons, to update the manuals
already on the market, sending its customers sheets of technical and/or operating updates which must be considered and
kept in the manual.
1.5 Manufacturer identication
Information for identifying the manufacturer:
DIAMOND EUROPE S.A.
92 Chaussée de Vilvorde - 1120 Brussels - Belgium
1.5.1 Requesting help – Technical assistance service
Any request for action by the Technical Assistance Service must be sent by fax or e-mail to the dealer from which the machine
was purchased. The manufacturer’s sales/support network can be found at https://www.diamond-eu.com/.
When requesting help or technical assistance, always specify:
1. type of machine, model, product code, serial number and year of construction;
2. faults found;
3. dealer through which the machine was purchased;
4. tax document indicating the date of machine purchase by the user.
Chapter 1
General Information
10
1.5.2 Ordering spare parts
DIAMOND EUROPE S.A. website: https://www.diamond-eu.com/.
1.6 Machine identication data - CE marking
The data plate with CE marking is located at the top of the machine rear panel and shows all of the data needed for machine
1. Machine code; 7. Number of phases;
2. Model – type of machine; 8. Max. power;
3. Machine serial number; 9. Max. current drawn;
4. Date of production (Year); 10. Type and quantity of refrigerant gas ;
5. Electric power supply voltage; 11. Global Warming Potential for type of refrigerant gas ;
6. Electric power supply frequency; 12. Équivalent COtotal ;
This data must be indicated in all information documents, for example for every request for technical assistance or when
requesting spare parts.
REMOVAL OF OR TAMPERING WITH THE IDENTIFICATION PLATE IS STRICTLY PROHIBITED.
CODE
0
MODEL
S/N YEAR
V Hz Ph
kW A
GWP
Tel. +39 0721201246TOTAL F-GAS MASS (kg) TOTAL EQ CO2 (t)
Via Enrico Mattei, 23/31
61022 Morciola di
Vallelunga (PU)
DIAMOND
ITALY s.r.l.
MADE IN ITALY
by CCIAA LO 000157
TYPE of F-GAS
1 2 3 4
5 8 10 6 9 7 11 12
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1.7 Intended uses
The DST/2 range of machines are designed to:
1. stir and freeze in one or two of the internal machine cylinders the mixture picked up from one or two of the tubs that are
2. preserve the mix and the ice cream present in the cylinder(s), for the time considered necessary, but not beyond the
expiry date of the ingredients/products used.
The machines are designed and built to use gravity to transfer the mix/product from the reserve tank to the cylinder. Inside
the cylinder(s), the mix is stirred and cooled to produce soft ice-cream or frozen yogurt.
THE MACHINE CANNOT BE USED FOR OTHER PURPOSES WITHOUT THE MANUFACTURER
AUTHORISATION. THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR DIRECT OR INDI-
RECT DAMAGES DUE TO IMPROPER USE OF THE MACHINE.
1.7.1 Reasonably foreseeable improper use
Based on experience using the machine in actual operating conditions, we recommend that you follow these instructions:
1. Do not operate the machine “dry” as, if the cylinders are empty (containing no product) when the machine is running,
ice will form on the cylinder walls and this will result in abnormal machine noise, wear and damage to the mixers.
2. Do not operate the machine without the gland present on the mixer, as this would cause the side collecting drawer to
3. Do not operate the machine without the mixers mounted in each cylinder, as this would cause the side collecting
4. If you remove the mixer (e.g.: for washing purposes), in order to stop ice forming on the cylinder walls, do not press
temperature, to avoid the mixer and cylinder jamming or mechanical stress being created.
5. Do not operate the machine if the gaskets on the following components are worn and/or damaged:
- mixer glands
- dispensing tap pistons
- dispensing tap
product and/or surface of the cylinders are still at a temperature that could cause injury to anyone touching machine
parts or materials that are at a very low temperature. Use suitable gloves that protect against low temperatures and/or
use suitable protective clothing.
1.8 Information for personnel authorised to use the machine
This manual contains the information needed by authorised personnel to correctly use the machine.
A knowledge of and compliance with the general safety instructions and danger warnings contained in this manual are the
conditions for proceeding, in minimal risk conditions, with installation, putting into service, operating and maintenance of
the machine.
Personnel authorised to use the machine:
OPERATOR: person trained in the ordinary operation of the machine and who performs the following operations:
1. Preparation of ingredients and loading in the machine.
2. Preparation and/or programming of recipes.
3. Machine cleaning and routine maintenance.
QUALIFIED TECHNICIAN: a person whose training and professional education gives him a knowledge of machine service
conditions, and who is able to work on the machine and recognise and avoid any dangerous conditions.
Chapter 1
General Information
12
1.9 Packaging, transportation and storage
The machine is packaged in a wooden or cardboard crate on a pallet having dimensions and features suitable for the type
and weight of the machine. The machine will be delivered packaged, ensuring that it is protected from the elements.
Each package is marked with the following information:
• Type of machine, model and serial number
• Net and gross weight
• Machine destination
Labels are applied on the package to indicate the following:
• Handle with care
• This way up
• Protect from rain
• Do not stack
• Protect from heat sources
• Fragile
1.9.1 Transportation, lifting and handling
THE PACKAGE MUST ONLY BE HANDLED BY QUALIFIED TECHNICAL PERSONNEL.
When the machine is delivered, check that during transportation in addition to visible damage no other damage was caused
which could compromise correct operation. On the delivery note, write “Subject to approval” to show that acceptance of the
machine is subject to checks. If any damage is found, within 48 of receiving the machine, report the damage to the haulier
and the dealer.
Use a pallet truck or a fork-lift truck to move the machine, inserting the forks in the holes in the pallet. Use equipment with
suitable load-bearing capacity.
MOVE THE MACHINE USING LIFTING EQUIPMENT WITH A SUITABLE
LOAD-BEARING CAPACITY. DO NOT ATTEMPT TO LIFT THE MACHINE BY
HAND.
1.9.2 Machine storage
The package must not be subjected to impacts, vibrations and other loads.
The machine must be stored indoors, in an area free of aggressive agents, at a temperature not lower than +2 °C, not higher
13
2 TECHNICAL SPECIFICATIONS
2.1 General description of the machine
The DST/2 range of machines covered by this manual, are machines for making soft ice cream and frozen yogurt.
The range consists of the following models:
The machines are designed and built to use gravity to transfer the mix/product from the reserve tank to the cylinder. Inside the
cylinder(s), the mix is stirred and cooled to produce soft ice-cream or frozen yogurt. The mix can be kept in the machine for
the time considered necessary, but not longer than 72 hours and not beyond the expiry date of the ingredients/products used.
Chapter 2
Technical Specications
14
2.2 Illustration of the machine as a whole and its components
1 Cone tube cover
2 Cone tube
3 Cone retaining valve
4 Mixer
5 Cylinder
6 Filling tube
7 Mix reserve tank
8 Tank cover
10 Dispensing lever
11 Dispensing tap
13 Drip tray
14 Air condenser grille
17 Side collecting drawer
18 Support feet (for counter models)
15
8
1
2
3
4
7
9
10
11
12
13
14
15
16
17
5
6
18
Chapter 2
Technical Specications
16
2.3 Working and control position
The operator must stand in front of the machine and load the ingredients, programme the recipe, start the processing and
unload the processed product at the end of the recipe.
2.4 Machine technical data
Model DST/2-15AG DST/2-27AG
Net weight kg 104 160
Coolant gas (type) R452A
Quantity of product that can be processed (min.- max.) L 2x6 2x8
Ambient temperature (min.- max.) °C +2 - +30
AIR version machine: (coolant gas pressure) bar 17 to 20 17 to 20
"CONDENSATION" (coolant gas temperature) °C +40 to +50 +40 to +50
AIR version machine: (coolant gas pressure) bar 2.0 to 1.5 2.0 to 1.5
"EVAPORATION" (coolant gas temperature) °C -20 to -25 -20 to -25
WATER version machine: (coolant gas pressure) bar - 14 to 15
"CONDENSATION" (coolant gas temperature) °C - +32 to +35
WATER version machine: (coolant gas pressure) bar - 2.0 to 1.5
"EVAPORATION" (coolant gas temperature) °C - -20 to -25
Mains water temperature °C +18 to +25
Infeed water pressure bar 1 to 7
Water consumption L /min. 3 to 4
PRODUCTION
Hourly production of 75 g cones cones / h 180 300
Drawing interval with mixed cones 75 g seconds 20 12
Note: For machine models with 3 dispensing levers, if the operator continues drawing from the
same cylinder, machine production drops by 50% and consequently the interval between drawing
operations must be doubled.
17
Model DST/2-15AG DST/2-27AG
Dimensions L (mm) 500 500
D (mm) 550 550
H (mm) 720 1450
D2 (mm) 180 180
E (mm) 500 500
RATED POWER / RATED CURRENT
Power supply
voltage (Volts) Frequency (Hz) Phases DST/2-15AG DST/2-27AG
230 50 1 2.4 kW - 13 Amp. -
220 60 1 2.4 kW - 14 Amp. -
230 50 3 2.4 kW - 10 Amp. 3.8 kW - 16 Amp.
220 60 3 2.4 kW - 11 Amp 3.8 kW - 16 Amp.
400 50 3 2.4 kW - 10 Amp 3.8 kW - 10 Amp.
2.5 Noise
The machine is designed and built to conform to the requirements of the regulations in force.
The machine’s exposure limit and action limit values, relative to the level of daily exposure to the peak noise and acoustic
TEST DOCUMENTS AND CERTIFICATES FOR THE INSTRUMENTS USED FOR THE MEASUREMENTS
ARE FILED AT THE MANUFACTURER AND ARE AVAILABLE FOR THE MONITORING AUTHORITIES.
Chapter 2
Technical Specications
18
2.6 Items supplied with the machine
The machine is supplied together with the following items:
1. Operating and maintenance manual.
3. 2 bottle brushes (small/large) for cleaning.
4. 2 cone tubes.
5. Upper cone support bracket.
6. Lower cone support bracket.
7. 2 cone tube covers.
8. 2 “cone retaining” valves.
3 GENERAL SAFETY REGULATIONS
3.1 General instructions
THE INSTRUCTIONS LISTED BELOW MUST BE CAREFULLY READ SO THAT USERS ACT AP-
PROPRIATELY ON A DAILY BASIS WHEN OPERATING THE MACHINE AND CARRYING OUT
MAINTENANCE. THIS PREVENTS ANY KIND OF ACCIDENT LINKED TO SITUATIONS INVOLVING
POTENTIAL RISK FOR PEOPLE AND/OR OBJECTS.
For the safety of machine users, the following safety instructions must be complied with:
1. Do not attempt to start the machine until you have acquired a suitable understanding of how it operates, by reading
this manual.
2. In case of doubts, even after carefully reading this manual, contact the technical assistance service.
3. Make sure that all personnel involved in using the machine are aware of the safety instructions.
4. Before starting the machine, the operator must check for any faults and/or defects visible on the safety devices and on
the machine. If any faults are found, immediately report them to the manufacturer or to the nearest authorised service
centre.
5. The machine must only be used for the purposes for which it was intended and in accordance with the manufacturer’s
instructions.
6. Every day, check that all safety devices on the machine are operating correctly (see section 3.2 of this manual).
7. Safety devices must not be removed or bypassed for any reason.
8. Any tampering with or modification of the machine not authorised in advance by the manufacturer shall release the
manufacturer from any responsibility for injury/damage to people and/or objects.
are damaged, they must be promptly substituted.
10. Work on electrical connections must only be carried out by qualified technical personnel.
11. The operator must be familiar with the machine controls as described in section 5.1 “Controls”.
12. The operator must not carry out any operations which are not described in this manual.
13. Only purchase and use original spare parts, which are guaranteed by the manufacturer. Contact the dealer or the
nearest service centre to replace faulty or damaged components.
14. Do not wear clothing, jewellery and accessories which may become tangled in machine moving parts.
16. Do not put fingers and/or objects in the machine slots or holes.
19
17. Do not use the machine with damp or wet hands.
18. Always wear suitable gloves and a hair cover for hygiene.
20. The machine must be installed in a location protected from rain and sun.
21. Do not allow water and/or liquids to penetrate the machine.
22. Do not open the machine panels, since the machine contains components/parts which cannot be maintained by the
user.
23. Do not lean or sit on the machine while it is operating.
24. Do not apply to the machine other devices which are not part of the kit supplied by the manufacturer.
25. Clean the machine outer panels with soft cloths moistened with detergent for food-safe machines. Do not use water
jets, as they may damage components/parts inside the machine.
26. Do not use any kind of solvent, such as spirit, benzene or thinner to clean any of the machine surfaces.
27. Do not operate the machine while under the effects of alcohol, mental health medications or medications in general.
28. This machine must not be used by persons under the age of 18.
30. If the machine develops any problems not covered in this manual, contact the Technical Assistance Service.
31. Use of the machine is not permitted in places with a potentially explosive atmosphere and in places with ambient
conditions not envisaged in point 4.2 of this manual.
32. The machine is not designed to be used by people with reduced physical, sensory or mental capacity.
Chapter 3
Safety regulations
This manual suits for next models
2
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