Riello P 140 T/G Quick start guide

Installation, use and maintenance instructions

2915905 (3) - 03/2012

Light oil burners

CODE MODEL TYPE

3476885 P140 T/G 476 T80

3476886 P140 T/G 476 T80

2915905 1

1- Suction line

2- Pump pressure adjustment screws

3- Return line

4- Manometer plug (G 1/8)

5- Vacuometer plug (G 1/2)

6- Reset push-button of the motor overload relay

7- Wiring terminal board

8- Control box reset push-button and lock-out lamp 11 - Regulating bush for combustion head

Cable clamps 12 - Valves group with hydraulic jacks

10 - Ignition transformer 13 - Electric board

DIMENSIONS (mm)

* It is possible with a space upon request.

TECHNICAL DATA

Thermal power - Output 355 / 1660 kW - 30 - 140 kg/h (see page 2)

Operation 1st stage - 2nd stage - 3rd stage

Fuel Light oil, max. viscosity at 20° C: 6 mm2/s (1.5° E)

ELECTRICAL DATA

MOTOR IE1 MOTOR IE2

Electrical supply Three-phase 220V +10% -10% ~ 60Hz without neutral

380V +10% -10% ~ 60Hz with neutral

Motor 10 A / 220V - 5.8 A / 380V 10 A / 230V - 5.8 A / 400V

Ignition transformer Primary: 2 A - Secondary: 2x 6.5 kV - 35 mA

Absorbed electrical power 4.5 kW 4.1 kW

Fig. 1

BurnerBoiler front plate

drilling

Quantity Accessories

2 Flexibles tubes

2 Nipples

4Screws

1 Gasket for flange

4 Cable clamps

2915905 2

OPERATION AND EFFICIENCY OF THE BURNER

ACCESSORY

RADIO DISTURBANCE PROTECTION KIT: Code 3010386

If the burner is installed in places particularly subject to radio disturbance (emission of signals exceeding 10 V/m) owing

tothepresenceofanINVERTER,orinapplications where the length of the thermostat connections exceeds 20 metres,

a protection kit is available as an interface between the control box and the burner.

1st STAGE

POWER AND OUTPUT

MINIMUM MAXIMUM

kW kg/h kW kg/h

1st nozzle: ignition phase 273 23 545 46

1st + 2nd nozzle: intermediate phase 557 47 1103 93

1st + 2nd + 3rd nozzle: operation phase 830 70 1660 140

2nd STAGE

POWER AND OUTPUT

MINIMUM MAXIMUM

kW kg/h kW kg/h

1st nozzle: ignition phase 273 23 545 46

1st + 2nd nozzle: 1st stage of operation 557 47 1103 93

1st + 2nd + 3rd nozzle: 2nd stage of operation 830 70 1660 140

3rd STAGE

POWER AND OUTPUT

MINIMUM MAXIMUM

kW kg/h kW kg/h

1st nozzle: 1st stage of operation 355 30 545 46

1st + 2nd nozzle: 2nd stage of operation 664 56 1103 93

1st + 2nd + 3rd nozzle: 3rd stage of operation 830 70 1660 140

2915905 3

COMBUSTION CHAMBER PRESSURE - MAXIMUM OUTPUT

(three nozzles in operation)

Operation field in accordance with DIN 4787

When the burner operates with only one, or two nozzles, the pressurization conditions are improved and no prob-

lems arise.

DIMENSIONS OF THE TESTING COMBUSTION CHAMBER

(in compliance with ISO 5063 - 1978)

For the combustion head projection carefully

follow the boiler manufacturer indications.

A proper protection with refractory material on

the combustion chamber shall be made, when

the boilers with frontal smoke box are used.

Testing thermal load

D = Boiler diameter in mm

P = Position of the mobile

movable wall (mm)

2915905 4

SUPPLY LINE

NOTICE

Before placing the burner in operation, ensure that the return line is open.

Any obstruction may damage the pump seal.

Pump priming: Fill the pump with the light oil from the vacuometer plug (5) (fig. 1), put the burner in operation, purge

the air from the manometer plug (4) (fig. 1) and wait for the pump priming. If lock-out occurs repeat the procedure.

H= Difference in the pipes height L= Total length of the suction tube

øi = Internal diameter of the tube. Copper tubes ø 14 and 16 mm could be replaced by steel tubes G 1/2” and G 3/4”.

Pump priming: Loose the tap from the vacuometer

plug 5 (fig. 1) and wait for the flow of the fuel.

Pay attention to do not overcome the max. depression of 0.45 bar (35 cm Hg), over this val-

ue the fuel may turn into gas.

Check the pipes are perfectly sealed.

When the fuel tank is under the burner level we suggest to let the return line arrive where

the suction line starts.

In this case the foot valve is not necessary.

Should the return line arrive over the fuel level, the foot valve is indispensable. Notice that

this solution is less safe than the previous one, because it is possible the valve has not a

good sealing.

meters L meters

I.D. 14 mm I.D. 16 mm

005

0,5 5 10

11020

1,5 20 40

23050

meters L meters

I.D. 14 mm I.D. 16 mm

0 50 100

0.5 40 80

13060

1.5 20 40

21020

3510

2915905 5

INTERNAL WIRING DIAGRAM

(carried out by the factory)

2567

KEY TO LAYOUT

CMV Fan motor contactor

CO Commutator

FR Photocell

h 1 1 st stage hourcounter

h 2 2 nd stage hourcounter

h 3 3 rd stage hourcounter

L1 1 st stage lamp

L2 2 nd stage lamp

L3 3 rd stage lamp

L4 Lock - out motor lamp

MB Wiring terminal board

MV Fan motor

TA Ignition transformer

RT Thermal relay

VS Safety solenoid valve

V1 1 st stage solenoid valve

V2 2 nd stage solenoid valve

V3 3 rd stage solenoid valve

2915905 6

ELECTRICAL CONNECTIONS TO THE WIRING TERMINAL BLOCK

(to be carried out by the installer)

2648

KEY TO LAYOUT

HRemote lock - out signal TL Load limit remote control system

I1 Burner manual stop switch TS Safety load control system

MB Wiring terminal board T2 2 nd stage load control system

PS Reset push - button T3 3 rd stage load control system

TB Burner ground (earth) connection

220V 380V

F Ampere T25 T25

S mm22,5 2,5

Check the lock-out by darkening the photo-cell after removal of the cover.

ATTENTION: HIGH VOLTAGE

Important:

In systems where the run of wiring connecting the thermostat exceeds 20 metres in length, or in places

where the burner is subject to particularly disturbing electromagnetic interference (over 10 v/m), you must

insert the relay-inter face kit item number 3010386.

Note:

2915905 7

CHOICE OF: NOZZLES - PUMP PRESSURE -

COMBUSTION HEAD ADJUSTMENT

•State, first of all, the maximum output required with all three nozzles in operation.

•On the base of the maximum required output, choose-from table A or B - three related nozzles.

Nozzles: 60° - Pump pressure: 12 bar

For three-stage operation (up to 116 kg/h) 1st and 2nd nozzle are not equal to the 3rd one. Follow this procedure

in order to obtain higher values of CO2(during 1st and 2nd stage of operation), complying with German Standard

DIN.

•The references on the table C have to be followed in case of need of:

- modification of the pump pressure in order to vary the output;

- diverse composition of the 3 nozzles group;

- knowledge of the output in 1st and 2nd stage.

SUGGESTED NOZZLES

(1) The pump pressure is referred to all three nozzles operating, the pressure increases automatically with two noz-

zles in operation and more with only one.

1st Stage / 2nd Stage

ANozzles 60°

Pump 12 bar (1) Total delivery

kg/h

GPH

1st 2nd 3rd 1st + 2nd + 3rd

5.50 5.50 5.50 70.80

6.00 6.00 6.00 77.40

6.50 6.50 6.50 83.70

7.00 7.00 7.00 90.00

7.50 7.50 7.50 96.60

8.00 8.00 8.00 102.90

8.30 8.30 8.30 106.80

8.50 8.50 8.50 109.50

9.00 9.00 9.00 115.80

9.50 9.50 9.50 122.40

10.00 10.00 10.00 128.70

10.50 10.50 10.50 135.30

11.00 11.00 11.00 141.60

3rd Stage

BNozzles 60°

Pump 12 bar (1) Total delivery

kg/h

GPH

1st 2nd 3rd 1st + 2nd + 3rd

6.50 6.50 3.50 71.10

7.00 7.00 4.00 77.20

7.50 7.50 4.00 81.60

8.00 8.00 4.00 85.80

8.30 8.30 4.00 88.40

8.50 8.50 4.50 92.30

9.00 9.00 5.00 98.70

9.50 9.50 6.00 107.40

9.50 9.50 8.00 115.90

9.50 9.50 9.50 122.40

10.00 10.00 10.00 128.70

10.50 10.50 10.50 135.30

11.00 11.00 11.00 141.60

2915905 8

Rated nozzles delivery are shown in the table.

The real nozzle delivery may vary from the rated one up to ± 5%, its detection is made by weighing the oil sprayed

out from the nozzle inserted in a tube.

The pump leaves the factory rated at 12 bar.

Pay attention to not overcome the pump pressure values of 10 and 14 bar.

• At the end, on the base of the maximum output, you obtain the combustion head adjustment from the diagram D.

The adjustment should be made by turning the screws A till the

set-point (see diagram) is on the line with the washer B.

Nozzles delivery

Pump pressure Combustion head adjustment

Maximum output

Combustion head adjustment

(set-point)

Set-point 6

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