Unitech T1 User manual

GAS BURNER
HORIZONTAL / VERTICAL
INSTALLATION MANUAL

GAS BURNER
HORIZONTAL / VERTICAL
A.
Read this manual with care before installing, starting, op-
erating or performing maintenance or other operations
on the burner.
B.
IMPORTANT WARNING IN CASE
THE USER SMELLS GAS:
1. Shut the main gas valve o immediately.
2. Ventilate the room.
3. Turn the burner o and isolate the power supply.
4. Contact the technical service department authorised
to commission and repair gas appliances.
INSTALLATION MANUAL

1 GENERAL INFORMATION
1.1 Symbols used in the manual
1.2 Glossary
2 SAFETY RULES
3 OVERVIEW
3.1 Components of version T1
3.2 Components of version T2
3.3 Components of version T3
3.4 Electrical components
3.5 Component description
3. Warnings
3.7 Prohibited uses
3.8 Identification data
4 TECHNICAL DATA AND DIMENSIONS
4.1 Technical data
4.2 Position and identification of plates
4.3 Dimensions
4.4 Electrical connections
4.5 Lighting
4.6 Airborne noise
4.7 Vibrations
4.8 Electromagnetic environment
5 SAFETY DEVICES AND PROTECTION SYSTEMS
5.1 Flange safety screw
6 LIFTING, TRANSPORT AND STORAGE
6.1 Transport and handling
7 INSTALLATION
7.1 Installation
7.1.1 Installing mechanical parts
7.2 Electrical connection
7.2.1 Connection of electrical components
7.3 Place of installation
7.4 Flue pipe
7.4.1 Flue pipe installed under a type A1 hood
7.4.2 Natural draught flue pipe B11 BS
7.5 Gas connection
7.5.1 Burner connection
7.5.2 Installing a secondary pressure reducer
7.6 Checking connection pressure
7.7 Adapting the appliance to other types of gas
7.8 Replacing the main burner nozzle
7.9 Adjusting the burner flame
7.9.1 Adjusting maximum pressure
7.9.2 Adjusting minimum pressure
7.10 Installing the temperature probe
7.10.1 Checking the temperature probe
TABLE OF CONTENTS
3
5
5
6
6
8
8
10
12
14
15
15
15
15
16
16
18
18
18
18
18
18
18
19
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19
20
20
20
25
26
28
30
30
30
31
31
31
32
33
33
34
34
34
36
36

TABLE OF CONTENTS
36
36
36
37
37
37
39
40
41
41
43
43
43
44
50
52
53
54
55
55
56
57
58
59
60
61
8 MAINTENANCE
8.1 Safety conditions during maintenance
8.2 Cleaning and routine maintenance
8.3 Cleaning and monthly maintenance of gas nozzles
8.4 Extra-duty cleaning and maintenance
8.4.1 Cleaning the burner
8.4.2 Replacing and adjusting electrodes
8.5 Troubleshooting
8.6 Replacing the temperature probe
8.7 Yearly checks
9 DECOMMISSIONING AND DISPOSAL
9.1 Decommissioning
9.2 Disposal
ATTACHMENTS TO THE MANUAL
1 DIMENSIONS
2 DIMENSIONS OF ELECTRICAL COMPONENTS
3 TYPES OF ASSEMBLY
4 INSTALLING THE TEMPERATURE PROBE
5 INSTALLING THE SMOKE SENSOR
6 CONNECTING ELECTRODES
7 POSITION OF GAS VALVE
8 ELECTRICAL CONNECTIONS
9 FIRST TRIAL RUN REPORT
10 PERIODIC CHECKS
11 DIMENSIONS OF PACKAGE AND PACKING LIST
12 PACKAGE LABEL
13 WARRANTY
4

5
Section 1
GENERAL
INFORMATION
This manual refers to series E / V gas burners in their
electronic version. It contains basic information on
installation, use, control and maintenance of burners.
This manual is an integral part of the burner and must be
kept with the latter until the ends of its service life. If the
manual you own becomes unreadable and is irreparably
damaged, you may ask the customer service department
a copy by submitting a copy of your purchase order or by
indicating the type of burner and serial number shown
on the UL nameplate.
This manual reflects the state-of-the-art the moment the
burner was supplied.
UNITECH reserves the right to update its products and
manuals without being obliged to update previous
products and manuals.
The Customer Service Department is at your disposal
to provide all the information concerning upgrades that
UNITECH has applied to its burners.
UNITECH cannot be held responsible for damage caused by:
- improper use of the burner
- use by untrained personnel
- incorrect installation
- incorrect energy supply
- inadequate maintenance or cleaning
- unauthorised modifications and operations
- wrong manoeuvres
- use of non-original spare parts
- use of unauthorised accessories
- failure to observe the instructions, either partially or in
whole
- unexpected events
This manual may not be reproduced in whole or in part
without the written consent of UNITECH, and its contents
may not be used for purposes other than those envisaged
in the relationship with the user.
This manual was originally written in Italian.
ATTENTION
This identifies situations of risk for people, draws atten-
tion to accident-prevention regulations and suggests
codes of conduct.
WARNING
This identifies situations of risk for the burn-
er and/or for the product being processed.
ATTENTION
Danger of electrocution.
ATTENTION
Danger of fires.
ATTENTION
Danger of explosion.
NOTA BENE
This identifies useful notices for consulting
the manual and for eicient operation of
the burner.
QUALIFIED TECHNICIAN
This identifies the installation, maintenance
or adjustment procedures that must be car-
ried out by the Manufacturer's personnel,
the Technical Service Centre or qualified
technicians.
1.1
SYMBOLS USED
IN THE MANUAL

6
Section 2
SAFETY RULES
Read this manual with care before installing, start-
ing, operating or performing maintenance or other
operations on the burner.
• Do not allow unauthorised personnel to work on the
burner.
• Before using the burner, make sure that any dangerous
conditions have been appropriately eliminated.
• Installation must be performed by qualified techni-
cians.
• When using knobs, handles and levers, always wear
heat-resistant gloves (PPE).
• The gas burner must only be used for its intended use
(baking pizza) and never for other purposes.
• Maintenance and adapting of the burner to other types
of gas are operations that must be entrusted only to
qualified personnel.
• The parts sealed by the manufacturer or its agent can-
not be adjusted by the installer or user.
• If you smell gas, shut o the gas valve, ventilate the
room, do not use electronic devices (including tele-
phones) and immediately call a qualified technician
or the gas company from another room. If nobody is
available, call the fire brigade.
• If you smell combustion products, turn o the appli-
ance, ventilate the room and call a qualified technician.
• Never store or use explosive or hazardous materials
that are easily flammable, such as paper, solvents,
paints etc., in the same room as the appliance.
• Installation, calibration or modification of the gas ap-
pliance must be carried out by qualified personnel in
accordance with national and local regulations and the
instructions in this manual.
Section 1.2
GLOSSARY
Equipment:
GAS BURNER FOR OVENS
Operator(s):
person entrusted with use of the burner.
Qualified technician:
person in charge of handling, installing and performing
extra-duty maintenance on the burner.
Exposed person:
any person wholly or partially in a danger zone.
Danger zone:
any zone near the burner, in which an exposed person is
subject to a risk to his/her health or safety.
P.P.E:
personal protective equipment.

7
• Never leave packaging materials or parts that have
been removed within the reach of children.
• In accordance with the regulations in force, the user
must keep the installation in good condition and en-
sure reliable and safe operation.
• The user must have the appliance serviced by a qual-
ified technician in accordance with national and local
regulations and in accordance with the provisions of
this manual.
• We also highlight the convenience of an annual rou-
tine maintenance contract with a professionally qual-
ified technician.
• Aer carrying out any cleaning or maintenance oper-
ations, put the battery back into the battery compart-
ment and ensure that all internal parts of the appliance
are thoroughly dry.
• This appliance is not intended for use by persons with
impaired physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have
been given supervision or instruction concerning use
of the appliance by the person responsible for their
safety.
• Any optional equipment or kits added subsequently
must be original.
• This appliance must only be used for the purpose for
which it has been designed and built.
• The manufacturer cannot be held liable for any liabilty,
either contractual or non-contractual, arising out of
damage caused by improper installation or operation
or failure to follow the manufacturer's instructions or to
comply with applicable national and local laws.
• For safety and environmental reasons, packaging ma-
terials must be disposed of at appropriate waste dis-
posal centres.
• If the appliance is faulty or is not working properly,
refrain from using it and from attempting any repair
work. Always contact a qualified technician. If repair
work calls for replacement of parts, original parts must
always be used. Failure to respect the above may put
the appliance's safety at risk.
• All drawings included in this manual, which relate to
electrical installation, plumbing or gas circuits, are pro-
vided for explanatory purposes only. All safety devices,
auxiliary devices as well as the diameters of electrical,
hydraulic and gas lines must always be checked by a
professionally qualified technician for compliance with
applicable standards and laws.

8
3.1
COMPONENTS OF THE
T1-HORIZONTAL VERSION
Section 3
OVERVIEW

9
3.1
COMPONENTS OF THE
T1-VERTICAL VERSION

10
3.2
COMPONENTS OF THE
T2-HORIZONTAL VERSION

11
3.2
COMPONENTS OF THE
T2-VERTICAL VERSION

12
3.3
COMPONENTS OF THE
T3-HORIZONTAL VERSION

13
3.3
COMPONENTS OF THE
T3-VERTICAL VERSION

14
3.4
ELECTRICAL COMPONENTS

15
3.5
COMPONENTS
REF. PART NAME
1
FLAME ARRESTOR ROD
2
SPARK PLUG SUPPORT
3
SPARK PLUG FIXING PLAQUE
4
FLAME IGNITION ELECTRODE
5
FLAME DETECTION ELECTRODE
6
ELECTRODE PROTECTION PIPE
7
PIPE CLAMPING FLANGE
8
BURNER BODY
9
PIPE CLAMP
10
CABLE COVER
11
SCREW
12
BUSHING LOCK SCREW
13
MAIN AIR SUPPLY ADJUSTER BUSHING
14
GAS NOZZLE
15
NUT
16
GAS RING
17
ROD WITH IDLE NUT
18
GASKET
19
BURNER CONNECTION CABLE
20
CABLE SUPPORT
21
GAS VALVE
22
ELECTRONIC CARD
FOR FLAME IGNITION/DETECTING
23
FLAME IGNITION CABLE
24
FLAME DETECTING CABLE
25
SWITCHBOARD
26
TRANSFORMER UNIT (optional)
27
POWER SUPPLY CABLE
28
EXTENSION CABLE
29
TEMPERATURE PROBE
30
GAS VALVE ASSEMBLY
31
NETWORK CABLE
32
TOUCH SCREEN CONSOLE
3.6
WARNINGS
The appliance has been designed for installation in an
oven for pizza or foodstus in general.
The environment in which the oven is installed must be
indoor (or covered), protected against adverse weather
conditions and suiciently ventilated. These conditions
refer to use of the appliance. The definition of limits for
the presence of personnel is the duty of the person in
charge of designing the workstation(s) and may call for
more restrictive measures.
The burner is intended for professional use and must be
entrusted to trained personnel who have been informed
about the contents of this manual and are suitable for
the task.
3.7
PROHIBITED USES
The appliance must only be used for the purposes de-
scribed in the previous paragraphs. It is prohibited to
use the appliance:
• Unless all its guards and protection systems are in per-
fect working order.
• If it has not been correctly installed, as indicated in this
manual.
• The appliance's surface must not be walked on or
used as support for other objects.
3.8
IDENTIFICATION DATA
The machine's data is indicated on the nameplate,
which is installed as shown in the figure in the TECHNI-
CAL DATA AND DIMENSIONS chapter.

16
4.1
TECHNICAL DATA
Section 4
TECHNICAL DATA AND DIMENSIONS
H
PRIMARY AIR SUPPLY
TECHNICAL DATA T1
DESCRIPTION METHANE GAS - NG LPG
Min. thermal power - kW 7 6.5
Max. thermal power - kW 14 14
Min. thermal power - BTU 23884 22178
Max. thermal power - BTU 47769 47769
Input pressure - mBar 20 30
Input pressure - W.C. 8.02 12.04
Min. pressure to burner - mBar 2.5 6
Max. pressure to burner - mBar 10 28
Min. pressure to burner - W.C. 12.4
Max. pressure to burner - W.C. 4.01 11.24
Burner nozzle diameter - mm 340 x 1 190 x 1
H= Main air supply regulation - mm 3 4
H= Main air supply regulation - inches 1/8 5/32
Min. consumption - m3/h 0.74
Max. consumption - m3/h 1.48
Min. LPG consumption - kg/h 0.55
Max. LPG consumption - kg/h 1.1
Gas connection 1/2" 1/2"

17
TECHNICAL DATA T2
DESCRIPTION METHANE GAS - NG LPG
Min. thermal power - kW 12 10.5
Max. thermal power - kW 22 22
Min. thermal power - BTU 40945 35827
Max. thermal power - BTU 75067 75067
Input pressure - mBar 20 30
Input pressure - W.C. 8.02 12.04
Min. pressure to burner - mBar 2.5 6
Max. pressure to burner - mBar 10 28
Min. pressure to burner - W.C. 1 2.4
Max. pressure to burner - W.C. 4.01 11.24
Burner nozzle diameter - mm 310 x 2 170 x 2
H= Main air supply regulation - mm 3 4
H= Main air supply regulation - inches 1/8 5/32
Min. consumption - m3/h 1.27
Max. consumption - m3/h 2.38
Min. LPG consumption - kg/h 0.83
Max. LPG consumption - kg/h 1.74
Gas connection 1/2" 1/2"
TECHNICAL DATA T3
DESCRIPTION METHANE GAS - NG LPG
Min. thermal power - kW 17.5 15.5
Max. thermal power - kW 34 34
Min. thermal power - BTU 59712 52888
Max. thermal power - BTU 116012 116012
Input pressure - mBar 20 30
Input pressure - W.C. 8.02 12.04
Min. pressure to burner - mBar 2.5 6
Max. pressure to burner - mBar 10 28
Min. pressure to burner - W.C. 1 2.4
Max. pressure to burner - W.C. 4.01 11.24
Burner nozzle diameter - mm 310 x 3 170 x 3
H= Main air supply regulation - mm 3 4
H= Main air supply regulation - inches 1/8 5/32
Min. consumption - m3/h 1.85
Max. consumption - m3/h 3.59
Min. LPG consumption - kg/h 1.22
Max. LPG consumption - kg/h 2.68
Gas connection 1/2" 1/2"

18
4.2
POSITION AND IDENTIFICATION
OF PLATES
Each of our appliances is fitted with a nameplate that
bears all technical data:
N.B. For no reason may the information printed on the
plate be altered.
The line indicating the country of destination and the ap-
pliance's gas supply is located under the data and in the
documentation delivered with the package.
See ATTACHMENTS TO THE MANUAL
Section 12 PACKAGE LABEL
The nameplate must always be readable and visible. It
must never be removed.
4.5
LIGHTING
Lighting must comply with the laws in force in the coun-
try where the burner is installed. It must ensure good vis-
ibility of the entire system, not create dangerous reflec-
tions and enable the control panels to be clearly read.
Therefore, a lighting of at least 400 Lux is recommended.
4.6
AIRBORNE NOISE
- Noise level < 70 dbA Leq*
* measuring conditions: burner running at full rate in sim-
ulated operation conditions.
4.3
DIMENSIONS
ATTACHMENTS TO THE MANUAL
Section 1 DIMENSIONS
4.4
ELECTRICAL CONNECTIONS
ATTACHMENTS TO THE MANUAL
Section 8 ELECTRICAL CONNECTIONS
4.7
VIBRATIONS
If the appliance is used correctly, vibration will not give
rise to any hazardous situations.
4.8
ELECTROMAGNETIC ENVIRONMENT
The burner has been designed to work correctly in an
electromagnetic environment that falls within the emis-
sion limits.
Power (W)
Unitech srl
Via Ferrari, 27/71
41043 Formigine (MO)
Italy
www.uni-tech.it
Category
Country
Model
S/N
Series
REF. EN 203-1 EN 437
Gas heated catering equipment
Phases Gas
Voltage (V) Type
Frequency (Hz) Pressure (mbar)
Rated power (A) Rated thermal power
Control circuit voltage (V) Consumption

19
Section 5
SAFETY DEVICES
AND PROTECTION
SYSTEMS
Safety devices and protection systems must never be
tampered with. Before starting the appliance, make sure
they are in place and in working order and check their
eectiveness.
5.1
FLANGE SAFETY SCREW
To ensure safe operation of the burner, the screw must
be wrenched with a torque setting of 36 Nm.
Section 6
LIFTING,
TRANSPORT
AND STORAGE
The burner can be packed in dierent manners.
OPERATORS IN CHARGE OF THESE OPERATIONS
MUST USE THE FOLLOWING PERSONAL
PROTECTIVE EQUIPMENT
The appliance must be lied with care, bearing in mind
its weight - indicated in the technical data section - and
the capacity of the means used for this operation; the lat-
ter must have a load-liing capacity that is greater than
the weight of the burner (package included).
Damage arising out of transport and handling is NOT
covered by the WARRANTY. Repair work and replace-
ment of damaged parts are at the care and charge of
the Customer. For transport, the burner is protected by a
special package, which is agreed upon with the customer
and depends on the type of transport adopted.
6.1
TRANSPORT AND HANDLING
Transport must be entrusted to qualified personnel.
The appliance must be transported in such a manner as
to prevent any kind of damage to its parts. In the event of
long-term storage before installation, keep the appliance
in a sheltered place and protect it against damp.

20
7.1
INSTALLATION
The burner must be installed by qualified technicians
that are conversant with the contents of this manual;
they must be equipped with the following equipment
and must work in compliance with the following stand-
ards:
- UNI CIG 7129
- UNI CIG 8723
For LPG cylinders:
- UNI CIG 7131
- UNI CIG 7128
- Rules of the building trade and local fire-fighting
provisions
- Accident-prevention standards in force
- Provisions of the gas supplier
- CEI provisions in force
Make sure that the oven structure is flat and capable of
withstanding the weight of the appliance (see technical
data). Near the burner, provide the following:
a) flue pipe
b) 220-Volt power supply or 110-Volt power supply with
transformer
c) gas supply
d) air flow rate - minimum air intake
7.1.1
INSTALLING MECHANICAL PARTS
To correctly install the burner, perform the following se-
quence of operations:
• Assemble the burner on a flat, level and so surface.
• Remove any protective film on parts before installation.
• Never use electrical tools for assembly.
• There may be dierences in appearance between the
illustrations and the model you have purchased.
• All packaging materials can be recycled.
• The burner can be assembled by one person.
• This operation must be performed by a qualified tech-
nician only
Section 7
INSTALLATION
PROCEDURES FOR INSTALLATION, MAINTENANCE
AND ADJUSTMENT
. Fit the gas valve on the burner body
Attention
fit the seal
Attention
fit the seal