NTGAS P31 Guida utente

Mod: BPG/27

Production code: IBERICA/PAV-02

06/2016

TECHNICAL INSTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE ES

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INDEX:

1.- TECHNICAL INSTALLATION INSTRUCTIONS 3

2.- MAIN DIMENSIONS 3

3.- TECHNICAL DATA 3

4.- INSTALLATION 5

4.1.- PLACE OF INSTALLATION 6

4.2.- ELIMINATION OF COMBUSTION RESIDUES 6

4.3.- CONNECTION TO THE GAS INSTALLATION 6

4.4.- OPERATION CONTROL 6

5.- TECHNICAL MAINTENANCE 7

6.- INSTRUCTIONS FOR REPLACEMENT OF COMPONENTS 7

6.1.- PARTS LIST 7

6.2.- REPLACEMENT OF THERMOCOUPLE 7

6.3.- REPLACEMENT OF PILOT BURNERS 8

6.4.- REPLACEMENT OF THERMOELECTRIC SECURITY VALVE 8

7.- GAS CONVERSION 8

7.1.- REPLACEMENT OF BURNER INJECTOR 8

7.2.- REPLACEMENT OF PILOT BURNERS INJECTORS 9

7.3.- PRIMARY AIR REGULATION 9

7.4.- BURNER REGULATION 9

8.- PROBLEMS AND SOLUTIONS 9

9.- USE AND MAINTENANCE INSTRUCTIONS 10

9.1.- START-UP 10

9.1.1.- SWITCHING ON THE BURNER 10

9.1.2.- SWITCHING OFF THE BURNER 10

10.- MAINTENANCE 10

11.- EC CERTIFICATE 10

TECHNICAL INSTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE ES

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1. TECHNICAL INSTALLATION INSTRUCTIONS

This manual contains all information needed to install and maintain this device appropriately. Keep this manual in a safe place

for consultation in future, if necessary.

Installation and connection as well as conversion to another type of gas must be done by qualified staff following the warnings

indicated on the labels sticked to the device and packing.

This equipment is made for professional use and for qualified personnel only.

In case of breakdown please contact an authorized technician and only use original spare parts.

2. MAIN DIMENSIONS

Fig. 1.

3. TECHNICAL DATA

Chart 1: Dimensions

MODEL EXTERNAL DIMENSIONS WEIGHT

Lenght (mm) Depth (mm) Height (mm) (Kg)

P-31 790 490 253 40

490

790

253

GAS INLET:

GAS NOZZLE

1/2

”

PRIMAIRY AIR

REGULATION

TECHNICAL INSTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE ES

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Chart 2: Categorías, Gases y presiones de utilización

COUNTRIES CATEGORY GAS PRESSURES

AT, CH, CZ, DK, EE, ES, FI, GB, GR, IE, IT, LT,

LV, NO, PT, RO, SE, SI, SK I2H G20 20 mbar

DE, LU, PL, RO I2E

BE, FR I2E+ G20 20 (25) mbar

NL I2L G25 25 mbar

CY, DK, EE, FR, HU, IT, LT, NL, RO, SE, SI I3B/P G30, G31 30 mbar

AT, CH, CY, CZ, DE, FR I3B/P G30, G31 50 mbar

BE, CH, CY, CZ, ES, FR, GB, GR, IE, IT, LT, PT,

SI I3+ G30, G31 28-30, 37 mbar

CY, DK, EE, FI, IT, LT, RO, SE, SI, SK II2H3B/P G20 / G30, G31 20 mbar / 30 mbar

AT, CH, CY, CZ, SK II2H3B/P G20/ G30, G31 20 mbar / 50 mbar

CH, CY, CZ, ES, GB, GR, IE, IT, LT, PT, SI, SK II2H3+ G20 / G30, G31 20 mbar / 28-30, 37 mbar

NL, RO II2L3B/P G25 / G30, G31 25 mbar / 30 mbar

DE, RO II2E3B/P G20 / G30, G31 20 mbar / 50 mbar

FR II2E+3B/P G20 / G30, G31 20 (25) mbar / 30, 50 mbar

BE, FR II2E+3+ G20 / G30, G31 20 (25) mbar / 28-30, 37 mbar

(1): Provided with a nozzle according to ISO 228-1.

Chart 3: Injector’s diameters (hundredths of mm)

MODEL P-31

DiIAMETER 1/100 mm

BIG RING SMALL RING

Main Burner Liquid Gas LPG G30/G31 at 28-30/37 mbar 215 140

Main Burner Liquid Gas LPG G30 at 50 mbar 190 120

Main Burner Liquid Gas LPG G31 at 50 mbar 200 130

Pilot burner Liquid Gas LPG G30/G31 (3ª Family) 20 20

Main burner Methane Gas G20/G25 at 20/25mbar 320 210

Pilot burner Methane Gas G20/G25 (2ª Family) 35 35

Chart 4: Nominal pressure, máximum and mínimum

GAS TYPE PRESSURE (mbar)

NOMINAL MINIMUM MAXIMUM

G 20 20 17 25

G 20 + G 25 20/25 17 25/30

G 30/G 31 30 25 35

G 30 + G 31 28-30/37/50 20/25 35/45

TECHNICAL INSTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE ES

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Chart 5: Burner consumptions

NOMINAL CALORIC CONSUMPTION (1)(2) kW NOMINAL CONSUMPTIONS (1)

TOTAL TOTAL

G20

BIG RING Qn 19 27 1,99 (Nm3/h) 2,83 (Nm3/h)

SMALL RING Qn 8 0,84 (Nm3/h)

BIG RING Qmin 6,92 10,56 0,73 (Nm3/h) 1,12 (Nm3/h)

SMALL RING Qmin 3,64 0,39 (Nm3/h)

G25

BIG RING Qn 19 27 2,32 (Nm3/h) 3,3 (Nm3/h)

SMALL RING Qn 8 0,98 (Nm3/h)

BIG RING Qmin 6,92 10,56 0,85 (Nm3/h) 1,3 (Nm3/h)

SMALL RING Qmin 3,64 0,45 (Nm3/h)

G30 (28-30 mbar)

BIG RING Qn 19 27 1,22 (kg/h) 1,74 (kg/h)

SMALL RING Qn 8 0,52 (kg/h)

BIG RING Qmin 6,92 10,56 0,55 (kg/h) 0,84 (kg/h)

SMALL RING Qmin 3,64 0,29 (kg/h)

G31 (37 mbar)

BIG RING Qn 19 27 1,2 (kg/h) 1,71 (kg/h)

SMALL RING Qn 8 0,51 (kg/h)

BIG RING Qmin 6,92 10,56 0,54 (kg/h) 0,82 (kg/h)

SMALL RING Qmin 3,64 0,28 (kg/h)

G30 (50 mbar)

BIG RING Qn 19 26,5 1,64 (kg/h) 2,29 (kg/h)

SMALL RING Qn 7,5 0,65 (kg/h)

BIG RING Qmin 11 16,5 1,18 (kg/h) 1,77 (kg/h)

SMALL RING Qmin 5,5 0,59 (kg/h)

G31 (50 mbar)

BIG RING Qn 19 26,5 1,62 (kg/h) 2,26 (kg/h)

SMALL RING Qn 7,5 0,64 (kg/h)

BIG RING Qmin 11 16,5 1,16 (kg/h) 1,73 (kg/h)

SMALL RING Qmin 5,5 0,57 (kg/h)

(1) All consumptions include the pilot burner.

(2) Hi consumption.

4. INSTALLATION

Installation must to be done by qualified persons following the installation norms that are in force locally and according to the

instructions of the gas supplying company.

Install the device in a draughty place to avoid unacceptable concentrations of substances harmful to health.

Remove the protective stainless steel plate to have access to the control of components.

Before proceeding with the installation and start-up of the device, read attentively the instructions of this manual and in

particular the norms related to security.

This device is intended for professional use and it has to be used by trained persons.

Before connecting the device, check first:

a) That all removable parts are in the correct position. If some part moved during transport, first readjust it.

b) That the support bench is levelled correctly.

TECHNICAL INSTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE ES

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4.1 PLACE OF INSTALLATION

Install the device in a location where adequate combustion and ventilation air are available. Respect the norms that are in

force concerning this matter locally.

A minimum of 150mm should be maintained between the fryer and any combustible material.

Install this device individually or integrated in other NT Gas kitchen furniture.

4.2 ELIMINATION OF COMBUSTION PRODUCTS

This is a Type A1device. The device should not necessarily be connected directly to an exhaust duct outwards.

Considering this device’s working characteristics, consumption and working temperature, it’s necessary to install the device

near to a ventilation hood to assure a perfect elimination of combustion gases. Combustion residues should be eliminated

directly or indirectly by a hood to prevent unacceptable concentrations of residues harmful to health.

This device needs an AIRFLOW of 270m3/h for a correct combustion and elimination of combustion residues.

4.3 CONNECTION TO THE GAS INSTALLATION

Before connecting the device, first consult the gas supplying company to check whether your gas network supplies the

necessary pressure and flow in order to ensure a proper operation of the device.

Connection of the device to the general gas installation must always be done by an authorized technician.

The general installation should be provided with a stopcock. Each device should have its own stopcock in order that the rest of

the installation does not remain disabled in case of failure of any of the other devices installed jointly.

This appliance is equipped with a stainless steel front panel that protects the gas valves and the elements that regulate the inlet

of combustion air. Do not cover this part either entirely or partially in order to ensure a proper combustion and not to alter

the combustion air inlet. Leave the upper part uncovered so as to allow a correct elimination of combustion residues.

The device is connected with a male input piece, ½” diameter, according to ISO 7-1, see fig. 1.

The gas type for which this device is configured is indicated on the front panel, next to the gas connection.

Check the gas pressure at the inlet, since pressure loss by the gas network is possible. If necessary, install a pressure

regulator or stabilizer to prevent the inlet pressure to the fryer to exceed the pressure indicated on the plate or on chart 4 of

these instructions.

Both rigid and flexible pipes can be used. If rigid pipes are used, the gas valve must be installed as close as possible to the

connection of the device. In case of flexible tubes, only approved and standardized tubes may be used.

Connect the device as follows:

a) Make sure that there is no flame around.

b) Connect the device to the gas network according to the norms in force and check with a manometer or soapy water

that the connection is leakproof. Never use a flame to verify if there are leaks. Should there be a gas escape

anywhere, close the gas valve and repair. Test again until the connection is leakproof.

4.4 OPERATION CONTROL

Control of the nominal caloric consumption

When the installation is new, or when the machine is converted to a different type of gas than that for which the device was

prepared for initially and after each maintenance operation, an authorized installer of the gas supplying company should check

the nominal caloric consumption of the device.

The nominal caloric consumption for each burner is indicated on chart 5.

Install a meter to measure the gas flow according to the values indicated on chart 5.

Control of the input pressure

Check whether the device is regulated for the type of gas to be used. Verify the information on the characteristics plate of the

device or on chart 2 of these instructions. In case the gas type is different, make the conversion following the indications of

chapter 7.

Measure the pressure of the device with a “U” manometer with a minimum resolution of 0,1 mbar at the gas input connection. If

the pressure is not between the values indicated on chart 4, do not start the device. Report your gas supplying company on

this.

TECHNICAL INSTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE ES

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Primary air control

The flame has to be stable, dark blue and should hardly have yellow extremities in the basis. If you observe that the flame has

yellow extremities, this means that primary air is failing. Regulate the primary air flow by loosening the nut and moving the air

regulation ring towards the inlet nozzle. Otherwise, if the flame comes off the burner or the flame base is not stable, move the

air regulation ring in the opposite direction.

Operation control

Start up the machine according to the instructions.

- Check the tightness of the gas circuit.

- Check the ignition and quality of the flame.

5. TECHNICAL MAINTENANCE

The maintenance of this device has to be done by an authorized installer, by the manufacturer or by the gas company.

It’s advisable to do a general control of the device at least once a year. Check:

a) The tightness of the gas circuit. Replace joints if necessary.

b) The ignition system or pilot burner and thermocouple.

c) Do not grease the gas valves, as mentioned under point 6.4.

d) If flexible tubes are used, check the expiry date and replace if necessary.

6. INSTRUCTIONS FOR REPLACEMENT OF COMPONENTS

This operation may only be done by an authorized installer or by the manufacturer’s staff.

6.1 PARTS LIST

Most important parts to assure a correct working of the device are:

- PILOT BURNER

- THERMOCOUPLE

- THERMOELECTRIC SECURITY VALVE

Before you replace any component, always make sure that the general gas valve is closed. Also make sure there is no flame

around.

6.2 REPLACEMENT OF THERMOCOUPLE

Proceed as follows:

a) Unscrew the hexagonal screw and loosen the control to remove the stainless steel front panel.

b) Loosen the nut that fixes the thermocouple to the thermoelectric security valve.

c) Loosen the clamp that attaches the thermocouple to the gas mixing tube.

d) Assemble the new thermocouple and tighten, but not more than 0,4 kp.m.

6.3 REPLACEMENT OF PILOT BURNER

Proceed as follows:

a) Unscrew the hexagonal screw and loosen the control to remove the stainless steel front panel.

b) Remove the clamp that attaches the pilot burner to the gas conducting tube.

c) Loosen the fitting of the pilot burner tube.

d) Replace the pilot burner. Torque should not exceed 0,8 kp.m.

e) Make sure that the circuit is gastight before starting the device again.

TECHNICAL INSTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE ES

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6.4 REPLACEMENT OF THE THERMOELECTRIC SECURITY VALVE

VERY IMPORTANT: DO NOT MANIPULATE OR GREASE THE GAS TAP. IN CASE OF BREAKDOWN OR JAMMING OF

THE AXIS, THE ENTIRE VALVE MUST BE REPLACED BY AN AUTHORIZED TECHNICIAN.

Proceed as follows:

a) Unscrew the two hexagonal screws and loosen the controls to remove the stainless steel front panel.

b) Loosen the nut that fixes the thermocouple to the valve.

c) Loosen the nut that fixes the pilot burner to the valve.

d) Unscrew the four flat headed screws that fix the elbow injector holder and primary air regulator ring.

e) Unscrew the screws of the flange and the valve of the main connection will come off.

f) Assemble the new valve. Torque should not exceed 2,5kp.m.

g) Assemble the thermocouple and the pilot burner on the valve.

h) Make sure the device is completely gastight before starting it again.

7. GAS CONVERSION

Gas conversion to another type of gas must always be done by a qualified installer, by the manufacturer’s staff or by the gas

supplying company.

Always use manufacturer’s original spare parts for gas conversions and repairs. Follow the instructions given under points 7.1,

7.2 and 7.3.

7.1 REPLACEMENT OF BURNER INJECTORS

The device is normally regulated and prepared to operate with G30+G31 gas at pressure of 28-30/37 mbar. A conversion kit

for G20 + G25 or G20 gas is included in this device.

a) Unscrew the two hexagonal screws and loosen the controls to remove the stainless steel front panel.

b) Unscrew the four flat headed screws that fix the elbow injector holder and primary air regulator ring.

c) Unscrew the injector counterclockwise, according to fig. 2.

d) Replace the injector according to chart 3.

e) The injector diameter is indicated in hundreths of mm on the injector.

Fig. 2

f) IMPORTANT: IMMEDIATELY ATTACH THE PLATE WITH INFORMATION ON THE NEW GAS TYPE.

Replacement injectors are supplied together with the corresponding informative plates.

INJECTOR

PRIMARY AIR

REGULATION RING

LOCKNUT FIXING

RING

ELBOW

OPENING

TECHNICAL INSTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE ES

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7.2 ADJUSTMENT OF PILOT BURNER TO NEW GAS TYPE

a) Loosen the lower nut of the pilot burner (with a fitting spanner of 11mm).

b) Turn the internal screw with a flat tip screwdriver to the right (for a smaller flame) or to the left (for a bigger flame).

c) Screw on the lower nut of the pilot burner.

7.3 PRIMARY AIR REGULATION

Primary air is regulated by approaching or moving away the regulating ring. Proceed as follows:

a) Loosen locknut (fig. 2).

a) Screw or unscrew the regulator ring of the burner up to opening “D” (fig. 2 & chart 6), according to the gas type to be

installed.

b) Fix the primary air regulator with the locknut.

Chart 6: Opening primary air regulation

BURNER Opening D for GAS G 20 Opening D for GAS G 30 + G 31

BIG RING 8 mm 6 mm

SMALL RING 7 mm 5 mm

Primary air of the pilot burner is regulated by turning the external part in such a way that more or less air flows through the

injector’s orifice. Regulation is obtained by turning in one way or the other.

Observe the flame. An excess of primary air produces a short flame that tends to come off the pilot burner. This could hinder

the ignition of the pilot injector.

The lack of primary air produces smooth and weak flames with yellow extremities due to an incomplete combustion.

7.4 BURNER REGULATION

Light the burner and keep it burning during a few minutes maximum. Then all at once change from maximum to minimum and

to maximum again several times. When doing these tests, if the burner extinguishes at the minimum position or the flames are

too big, then proceed to regulate the minimum by turning the thermoelectric security valve to the left to obtain a bigger flame or

to the right to obtain a smaller flame.

8. PROBLEMS AND SOLUTIONS

During normal operation of the device, problems can arise. These problems, as well as the possible causes and solutions are

listed below.

The pilot burner and the main burner do not ignite

Verify the following:

a) Make sure the stopcock is open.

b) Check if there is gas in the network.

c) Dismantle the pressure regulator that supplies gas to the device (in case it exists) and clean the input filter. There

could be an obstruction due to gas impurities

The pilot burner extinguishes easily

Check if the injector is obstructed.

Clean the injectors with high air pressure only. Never use wires or sharp objects that could vary the diameter of the injectors.

If the pilot burner does not retain the flame once these tests are completed, this means that the thermocouple is too separated

from the flame or the connection to the valve is loose. In this case, tighten, but not excessively to avoid damaging the

thermocouple head.

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