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3350

17

GB

6.

FAULTS / SOLUTIONS

Below is a list of some of the causes and possible solutions to a series of problems that might be encountered
and could cause a failure to start or irregular burner operation. The indicator inside the control box's reset but-
ton (1, fig. 1, page 2) lights when there is trouble, which in most cases is an operating malfunction. When this
indicator lights, burner operation can only be resumed after pushing the reset button all the way in. After this
if the burner functions correctly, the lockout can be attributed to a temporary fault. However, if lockout contin-
ues, you must determine the cause of the problem and take the action illustrated in the solution column in the
tables below.

6.1

START-UP PROBLEMS

FAULTS

PROBABLE CAUSE

SUGGESTED REMEDY

The burner doesn’t
start when the limit
thermostat closes.

Lack of electrical supply.

Check for voltage at L1-N terminals in
7-pin plug.

Check the conditions of the fuses.

Check that safety thermostat is not
locked out.

Gas is not supplied.

Check gate opening.

Make sure that valve has changed
over to open position and that there
are no short circuits.

The connections in the control box
are wrongly inserted.

Check and connect completely all the
plugs.

Burner performs pre-
purging and ignition
cycle normally and
locks out after 3 igni-
tion attempts.

Phase-neutral connection is invert-
ed.

Swap them over.

The wiring to the earth is lacking or in-
effective.

Make earth connection efficient.

Valve lets too little gas through.

Check supply grid pressure and/or ad-
just valve as indicated herein.

Gas valve is defective.

Replace.

Electric ignition arc is irregular.

Make sure connectors are inserted
properly.

Make sure electrode is in the right po-
sition as indicated herein.

Inspect quality of ceramic insulator.

Ionisation probe has a ground fault or
is not in contact with flame, or there is
a break in its wiring to control box, or
there is a ground fault due to its insu-
lation being defective.

Check right position and, if necessary,
adjust as indicated herein.

Restore electrical connection.

Replace faulty lead.

Gas is not supplied.

Check gate opening.

Make sure that valve has changed
over to open position and that there
are no short circuits.

Summary of Contents for 901 T

Page 1: ...s Instrucciones de instalaci n uso y mantenimiento Pre mixed gas burner Quemador de gas pre mezclado C DIGO CODE MODEL MODELO TYPE TIPO 3790100 RX 70 S PV 901 T GB E Progressive two stage or modulatin...

Page 2: ...l operation 12 4 6 2 Lockout due to firing failure 13 4 6 3 Lockout due to detection of flame or flame simulation during pre purging 13 4 7 Recycle function if flame goes out during operation 14 4 8 R...

Page 3: ...the protection block installed in the factory and install the block that is supplied with the burner see wiring diagram on page 8 LPG KIT There is a special kit available that when mounted on the gas...

Page 4: ...l Sm3 Pressure 10 30 mbar Electrical supply Single phase 50 60Hz 220 230V 10 Motor max 6000 rpm 50 60Hz Ignition transformer Primary 230V 0 2A Secondary 8 kV 12 mA 1 Reference conditions Air temperatu...

Page 5: ...chamber dimensions are similar to those shown in the diagram EN 676 For applications where the boiler does not conform to EN 303 or where the combustion chamber is much smaller than the dimensions giv...

Page 6: ...l power kW D7200 No motor rpm s min Gas valve outlet pressure mbar Pressure in combustion chamber 0 mbar G20 G25 n rpm s min Pressure mbar Thermal power kW D7188 No motor rpm s min Gas valve outlet pr...

Page 7: ...IXING see fig 3 Carry out the following for installation Fasten the burner 1 to the boiler s door 2 by means of the four screws and if necessary the nuts supplied placing the insulat ing gasket 3 betw...

Page 8: ...nt of gas delivered Air gas mixer Gas and combustive air are mixed in side the purging circuit mixer start ing from the intake inlet Through the gas train fuel is intro duced into the intake air curre...

Page 9: ...ection The cross section of the conductors must be at least 1 mm2 Unless requested otherwise by local standards and legislation The electrical wiring carried out by the installer must comply with the...

Page 10: ...the trimmers located on the control box fig 5 4 2 BURNER START UP Close the thermostat and switch on the burner s power The burner starts in pre purging mode at top speed Speed subsequently decreases...

Page 11: ...alue of the CO2 or the O2 in order to optimise the burner calibration The correct values are CO2 8 5 9 or O2 5 5 5 To correct these values act on the gas valve in the following way To increase the gas...

Page 12: ...nt emission IONISATION CURRENT The minimum current necessary for the control box operation is 5 A The burner gives a much higher current meaning that checking is not usually required Should you want t...

Page 13: ...ignition time total ignition time t2I Flame or flame simulation detected during standby time lockout occurs if flame or flame simulation persists for time t2l t4I Flame loss in operation valve drop ma...

Page 14: ...within one second Incorrect fan motor speed rpm Within t3a and or t3b ts TL M I V SO LED P M t4i t2 t1 t3 t3b t3a 4 6 3 LOCKOUT DUE TO DETECTION OF FLAME OR FLAME SIMULATION DURING PRE PURGING D7253...

Page 15: ...FUNCTION Post purging is a function that keeps air purging on even after the burner switches off The burner switches off when the limit thermostat TL opens consequently cutting off the fuel supply to...

Page 16: ...ntake areas and ducts taking the flue gases away do not feature any obstructions or restrictions Electrical wiring Check that the burner and gas train electrical connections are correct Gas leaks Make...

Page 17: ...it has entered the safety condition lockout The control box generates a sequence of led pulses which is repeated at constant 2 second intervals The sequence of led pulses issued by the control box ide...

Page 18: ...upplied Check gate opening Make sure that valve has changed over to open position and that there are no short circuits The connections in the control box are wrongly inserted Check and connect complet...

Page 19: ...through the pre purging and locks out Flame is detected Valve defective replace FAULTS PROBABLE CAUSE SUGGESTED REMEDY Burner locks out during operation Valve lets too little gas through Check supply...

Page 20: ...1 BURNER IDENTIFICATION The product Identification Plate gives the serial number model and main technical and performance data If the identification Plate is tampered with removed or missing the prod...

Page 21: ...Bloqueo por presencia de llama o simulaci n de llama durante la pre ventilaci n 13 4 7 Funci n de reciclado en el caso de desaparici n de la llama en funcionamiento 14 4 8 Funci n de reencendido por...

Page 22: ...ede conectar un pulsador Para la instalaci n quitar la clavija de protecci n de f brica y colocar la provista junto al quemador ver esquema el ctrico en la p g 8 KIT GPL Gas Licuado de Petr leo Est di...

Page 23: ...ica Monof sica 50 60Hz 220 230V 10 Motor m x 6000 rpm 50 60Hz Transformador de encendido Principal 230V 0 2A Secundario 8 kV 12 mA 1 Condiciones de referencia Temperatura del aire 20 C Temperatura del...

Page 24: ...e aproximan a las previstas en la norma EN 676 Por el contrario si el quemador se combina con una caldera comercial no conforme con la norma EN 303 o cuya c mara de combusti n tiene dimensiones m s pe...

Page 25: ...ica kW D7200 N rev del motor min Presi n de salida v lvula del gas mbar Presi n en la c mara de combusti n 0 mbar G20 G25 n rev min Presi n mbar Potencia t rmica kW D7188 N rev del motor min Presi n d...

Page 26: ...ALDERA v ase fig 3 Para realizar la instalaci n proceda de esta manera Fijar el quemador 1 en la venta nilla de la caldera 2 mediante los cuatro tornillos y si fuera necesa rio las tuercas que se sumi...

Page 27: ...l aire combu rente se produce en el interior del cir cuito de ventilaci n mezclador a partir de la entrada de la boca de as piraci n A trav s de la rampa de gas se intro duce el combustible en el cana...

Page 28: ...uena conexi n de tierra La secci n de los conductores debe ser de m n 1 mm2 Salvo diferentes indicaciones de normas y leyes locales Las conexiones el ctricas efectuadas por el instalador deben respeta...

Page 29: ...fig 5 4 2 PUESTA EN MARCHA DEL QUEMADOR Cerrar el termostato y alimentar el ctricamente el quemador El quemador se pone en marcha en modalidad de pre ventilaci n a la m xima velocidad Sucesivamente di...

Page 30: ...n de optimizar la calibraci n del que mador Los valores correctos son CO2 8 5 9 o O2 5 5 5 Para corregir dichos valores manejar la v lvulas del gas de la siguiente manera Para aumentar el caudal de ga...

Page 31: ...IENTE DE IONIZACI N La corriente m nima necesaria para que fun cione la caja de control es de 5 A El quema dor otorga una corriente netamente superior por lo cual normalmente no requiere control algun...

Page 32: ...laci n de llama durante el tiempo de espera si la presencia de llama o simulaci n de llama dura el tiempo t2l se produce un bloqueo t4i P rdida de la llama durante el funcionamiento tiempo de reacci n...

Page 33: ...o N de rev no correctas del motor ventilador rpm Antes de t3a e o t3b ts TL M I V SO LED P M t4i t2 t1 t3 t3b t3a 4 6 3 BLOQUEO POR LA PRESENCIA DE LLAMA O SIMULACI N DE LLAMA DURANTE LA PRE VENTILACI...

Page 34: ...10 FUNCI N DE POST VENTILACI N La post ventilaci n es una funci n que mantiene la ventilaci n del aire incluso despu s de apagado el que mador El apagado del quemador se produce con la apertura del te...

Page 35: ...mprobar que no haya obturaciones o estrechamientos en las zonas de aspiraci n del aire y en los con ductos de evacuaci n de los productos de la combusti n Conexiones el ctricas Comprobar la correcta e...

Page 36: ...oqueo La caja de control genera una secuencia de impulsos que se repite a intervalos constantes de 2 segundos La secuencia de los impulsos emitidos por la caja de control identifica las posibles tipol...

Page 37: ...ar que la v lvula est en posi ci n abierta y que no haya cortocircuitos Las conexiones de la caja de control electr nica no est n co rrectamente introducidas Compruebe y conecte a fondo todas las toma...

Page 38: ...y presencia de llama V lvula defectuosa sustituirla ANOMAL A POSIBLE CAUSA SOLUCI N El quemador se blo quea durante el fun cionamiento La v lvula permite el paso de muy poco gas Comprobar la presi n e...

Page 39: ...entificaci n del producto indica el n mero de matr cula el modelo y los principales datos t c nicos y prestacionales La adulteraci n extracci n falta de la Placa de identificaci n no permitir identifi...

Page 40: ...RIELLO S p A I 37045 Legnago VR Tel 39 0442 630111 http www riello it http www rielloburners com Con riserva di modifiche nderungen vorbehalten Subject modifications Sous r serve de modifications...

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