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13

BURNER FAULT INDICATIONS

Control program fault conditions and lock-out indication

Whenever a fault occurs, the sequence switch stops and with it the lock-out indicator. 
The symbol above the reading mark of the indicator gives the type of fault:

No start

One of the contacts has not closed

- Air damper opened.

The limit switch (blue cam) for the closed position do not 
supply voltage from terminal 11 to terminal 8.

- The contact of the limit thermostat or any other switching 

devices in the control loop of terminal 4 to terminal 5 are 
opened.

Extraneous light

Lock-out during or after completion of the control program

Examples:

–  Flame not extinguished
–  Leaking fuel valves
–  Faulty flame supervision circuit

Interruption of start-up sequence

OPEN signal of changeover limit switch (red cam) has not been delivered to terminal 8

Terminals 6, 7 and 15 remain under voltage until fault has been corrected

Lock-out

Defect in the flame supervision circuit, faulty flame signal, 
extraneous light

Interruption of start-up sequence

Position signal of auxiliary switch (orange cam) for the low 
flame position has not been delivered to terminal 8

Terminals 6, 7 and 15 remain under voltage until fault has 
been corrected

Lock-out

No flame signal is present on completion of the safety time

Lock-out

Flame signal has been lost during operation

In the event of a burner lockout, more than two
consecutive burner reset operations could cause
damage to the installation. On the third lockout,
contact the Aftersales Service.

If further lockouts or burner faults occur, interven-
tions must only be made by qualified, authorised
personnel (as indicated in this manual, and in
compliance with the laws and regulations current-
ly in force).

1

WARNING

DANGER

Summary of Contents for 9511300

Page 1: ...t oil burners Low high low or modulating operation CODE MODEL C9511300 RL 28 M C9511320 RL 28 M C9512353 RL 38 M C9512300 RL 38 M C9512301 RL 38 M C9512310 RL 38 M C9512320 RL 38 M C9513303 RL 50 M C9...

Page 2: ...Original instructions...

Page 3: ...al and essential part of the product and must not be sepa rated from it it must therefore be kept carefully for any necessary consultation and must accompany the burner even if it is transferred to an...

Page 4: ...d therefore dangerous In particular it can be applied to boilers operating with water steam diathermic oil and to other uses expressly named by the manufacturer the type and pressure of the fuel the v...

Page 5: ...rmal oil Ambient temperature F 32 104 0 40 C Combustion air temperature F max 140 60 C Main power supply 10 V Ph Hz 120 1 60 208 230 460 575 3 60 120 230 1 60 Fan motor rpm W HP V A 3400 370 0 5 120 5...

Page 6: ...on lights up it indi cates that the burner is in lock out To reset press the push button Motor trip RL 38 50 M release by pressing the push button on thermal over load 21 A PACKAGING WEIGHT B Approxim...

Page 7: ...lied with the burner BLAST TUBE LENGTH C The length of the blast tube 7 must be selected accord ing to the indications provided by the manufacturer of the boiler and in any case it must be greater tha...

Page 8: ...ry to change a nozzle with the burner already fitted to the boiler proceed as outlined below Pull back the burner on its slide bars as shown in fig C p 5 Remove the nuts 1 E and the disk 2 Use wrench...

Page 9: ...isted in the Table Key H Pump foot valve height difference L Piping length Inside pipe diameter 1 Burner 2 Pump 3 Filter 4 Manual on off valve 5 Suction line 6 Foot valve 7 Return line HYDRAULIC CONNE...

Page 10: ...B of the pump must be loosened to bleed off the air contained in the suction line Start the burner by closing the control circuit with switch 1 C in the MAN position As soon as the burner starts check...

Page 11: ...H nozzle flow rate Vertical axis PSI nozzle return pressure NOTE With a pump delivery pressure of 290 PSI the pressure on the nozzle return must not exceed 246 5 PSI The pressure difference between pu...

Page 12: ...cam 7 B via the screws 8 Adjusting air delivery Modify the initial profile of the lower cam 4 B via the screws 5 inside the opening 6 If possible do not rotate the first screw as this is the one that...

Page 13: ...ion time short Z connected to terminal 16 t4 Interval between voltage at terminals 18 and 20 t5 Air damper running time to OPEN position t6 Air damper running time to low flame position MIN t7 Permiss...

Page 14: ...PERATION At the end of the starting cycle the servo motor control then passes to load control for boiler pressure or temper ature If the temperature or pressure is low the burner pro gressively increa...

Page 15: ...r limit switch red cam has not been delivered to terminal 8 Terminals 6 7 and 15 remain under voltage until fault has been corrected Lock out Defect in the flame supervision circuit faulty flame signa...

Page 16: ...e combustion head are in good condition positioned correctly free of all impurities and that no deformation has been caused by operation at high temperatures Nozzle Do not clean the nozzle orifices It...

Page 17: ...n Figure below The RL 28 M 38 M 50 M burners have been type approved for intermittent operation This means they should compulsorily be stopped at least once every 24 hours to enable the control box to...

Page 18: ...4 956 Mbtu h AIR TEMPERATURE Altitude Altitude bar press bar press 0 5 10 15 20 25 30 40 C ft a s l m a s l w c mbar 32 41 50 59 68 77 86 104 F 0 0 399 1013 00 1 087 1 068 1 049 1 031 1 013 0 996 0 98...

Page 19: ...17 APPENDIX SPARE PARTS LIST 88 33 42...

Page 20: ...OVER 15 3003766 SCREW 16 3007627 MEMBRAN 17 3012953 SOCKET 18 3007079 SEAL C 19 3013037 CONNECTOR C 20 3012622 DRIVE DISK 21 3012993 MOTOR 120V C 21 3012994 MOTOR 208 230 460V C 21 3013057 MOTOR 575V...

Page 21: ...A 51 3012108 DIFFUSER DISC A 52 3012110 ANCHOR PLATE 53 3012111 HALF SHELL 54 3013016 COIL B 55 3013015 LEAD A 56 3012112 TUBE 57 3012113 TUBE 58 3012114 SHORT SHAFT 59 3012115 LEVER C 60 3012116 BEA...

Page 22: ...12384 OIL PRESSURE SWITCH B 86 3012950 C5360001 CONTROL BOX BASE 87 3013478 SPRING LEVER 02404000001 A 88 20088026 NOZZLE HOLDER C ADVISED PARTS A Spare parts for minimum fittings A B Spare parts for...

Page 23: ...y CO Low Fire High Fire Burner Firing Rate NOX Low Fire High Fire Low Fire Flame Signal Net Stack Temp Low Fire High Fire High Fire Flame Signal Comb Efficiency Low Fire High Fire Low Fire Nozzle Size...

Page 24: ...URNERS NORTH AMERICA 35 Pond Park Road http www riello ca 2165 Meadowpine Blvd Hingham Massachusetts Mississauga Ontario U S A 02043 1 800 4 RIELLO Canada L5N 6H6 RIELLO S p A I 37045 Legnago VR Tel 3...

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