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Riello RLS 28/E, Installation, Use And Maintenance Instructions

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Riello RLS 28/E Installation, Use And Maintenance Instructions Download Page 34

20059594

32 

GB

Start-up, calibration and operation of the burner

5.9

Final checks (with the burner working)

➤

Open the control limit operation

➤

Open the high limit operation

➮

The burner must stop

➤

Rotate the  maximum  gas pressure switch  knob  to  the  mini-
mum end-of-scale position (if installed)

➤

Rotate the air pressure switch knob to the maximum end of
scale position

➮

The burner must stop in lockout

➤

Switch off the burner and disconnect the voltage

➤

Rotate the minimum gas pressure switch

➤

Regulate the minimum oil pressure switch

➮

The burner must not start

➤

Cover the UV flame sensor

➮

The burner must stop in lockout due to firing failure

WARNING

Make sure that the mechanical locking systems on
the different adjustment devices are fully tightened.

Summary of Contents for RLS 28/E

Page 1: ...tion use and maintenance instructions Dual fuel light oil gas burner Progressive two stage or modulating operation for gas applications Progressive two stage operation for light oil applications CODE...

Page 2: ......

Page 3: ...LMV36 5 12 3 11 Actuators SQM33 5 17 4 Installation 18 4 1 Notes on safety for the installation 18 4 2 Handling 18 4 3 Preliminary checks 18 4 4 Preparing the boiler 18 4 4 1 Boiler plate 18 4 4 2 Bl...

Page 4: ...30 5 7 1 Adjusting gas air delivery 30 5 7 2 Flame signal measurement 30 5 8 Final calibration of the pressure switches 31 5 8 1 Minimum gas pressure switch 31 5 8 2 Air pressure switch 31 5 9 Final c...

Page 5: ...car ried out correctly may cause damage to the ma chine and or injury to people DANGER DANGER LIVE COMPONENTS This symbol indicates operations which if not car ried out correctly lead to electric shoc...

Page 6: ...of damage to things or injury to peo ple if such damage injury was due to any of the following causes incorrect installation start up use and maintenance of the burner improper incorrect or unreasona...

Page 7: ...nce Only those parts envisaged by the manufacturer can be replaced 2 2 Personnel training The user is the person body or company that has acquired the ma chine and intends to use it for the specific p...

Page 8: ...232 181 361 4 4 8 8 min 1st stage MBtu hr 4 kW GPH 378 111 2 7 Fuel 2 Light oil Natural gas Propane gas Gas pressure at maximum delivery 2 Gas Natural gas WC 4 33 Operation Light oil low high low Gas...

Page 9: ...the slide bars and turned upward The maximum dimension of the burner without the cover when open is given by measurement H Tab E 1 Blast tube short long obtainable with kit 3 6 Standard equipment Gas...

Page 10: ...he burner and inspecting the combus tion head 9 Pump 10 Safety solenoid valve 11 Low fire oil valve 12 Air servomotor 13 UV scanner 14 Fuel servomotor 15 Air inlet to fan 16 Gas input connection 17 Bo...

Page 11: ...gnal 21 RWF40 modulator with analog output 4 20 mA 22 Timer module and relay K01 23 Timer module and relay KG1 24 KG2 relay 25 K2 relay 26 K5 relay 27 K3 relay 28 K1 relay 29 DIN bar available for acc...

Page 12: ...er pressure remains within the burner s firing rate range even at different temperature and al titude conditions Proceed as follows to check the above 1 Find the correction factor F in the Tab G for t...

Page 13: ...13 0 995 0 978 0 962 0 946 0 916 1316 400 380 966 1 037 1 018 1 000 0 983 0 966 0 950 0 934 0 904 1645 500 376 955 1 025 1 007 0 989 0 972 0 955 0 939 0 923 0 894 1974 600 372 944 1 013 0 995 0 977 0...

Page 14: ...its via which it is possible to easily identify any causes of malfunctioning Mechanical design The following system components are integrated in the LMV36 5 basic unit Burner control with gas valve pr...

Page 15: ...AC 120 V 50 60 Hz 1 6 A pilot duty load declaration to UL372 cos 0 4 Alarm output Nominal voltage Nominal current Power factor AC 120 V 50 60 Hz 1 A cos 0 4 Ignition transformer Nominal voltage Nomin...

Page 16: ...pressure switch LP Pressure switch leakage test P LT Ignition transformer Z Alarm AL POC alternative to pressure switch max Pmax Fuel valve 1 V1 Fuel valve 2 V2 0 Test pressure switch min Pmin Postpu...

Page 17: ...Air pressure switch LP Ignition transformer Z Alarm AL POC alternative to pressure switch max Pmax Fuel valve 1 V1 Fuel valve 2 V2 Postpurge time 3 Fan motor M ON Safety valve SV ON Air damper LK Fue...

Page 18: ...rtup without valve proving valve proving via pressure switch min 9 Inverse logic in case of valve proving via pressure switch min 10 Parameter Oil pressure min input 1 active from phase 38 2 active fr...

Page 19: ...ors can be seen on the dis play of the Operator Panel Index 0 for fuel actuator index 1 for air actuator Installation notes Always run the high voltage ignition cables separate from the unit and other...

Page 20: ...ised people at a di stance check the integrity and suitableness of the available means of handling Check also that the area in which you are working is empty and that there is an adequate escape area...

Page 21: ...read with an anti locking product The seal between burner and boiler must be airtight 4 6 Nozzle In order to guarantee that emissions do not vary recommended and or alternative nozzles specified by Ri...

Page 22: ...ough the central hole in the flame stability disk or loosen screws 1 Fig 15 remove disk 2 Fig 15 and replace the nozzles using the wrench 3 The nozzle for low fire operation is the one underneath the...

Page 23: ...nectors 4 Fig 12 at page 19 4 9 Combustion head adjustment The setting of the combustion head depends exclusively on the de livery of the burner at high fire Turn screw 5 Fig 18 until the notch shown...

Page 24: ...he return and suction lines enter the burner from the same height In this way it will be more improbable that the suction line fails to prime or stops priming Tab J Key Fig 20 1 Burner 2 Pump 3 Filter...

Page 25: ...suction and return connections of the pump Insert the hose connectors into the connections and screw them down Route the hoses through the holes in the plate preferably using those on the right side F...

Page 26: ...pump fails to prime at the first starting of the burner and the burner locks out reset the burner and then repeat the starting op eration Do not illuminate the UV scanner cell or the burner will lock...

Page 27: ...ket with flange 8 Gas adjustment butterfly valve 9 Burner Explosion danger due to fuel leaks in the presence of a flammable source Precautions avoid knocking attrition sparks and heat Make sure that t...

Page 28: ...re measured at test point 1 Fig 26 Find the nearest pressure value to your result in the table for the burner in question Read off the corresponding output on the left Example with natural gas High fi...

Page 29: ...identification label and in this manual Do not invert the neutral with the phase in the electrical supply line Any inversion would cause a lockout due to firing failure The electrical safety of the d...

Page 30: ...l operation 5 3 1 Firing Set the AZL Display in the manual position During the first firing and the change from low to high fire there is a momentary lowering of the fuel pressure caused by the fillin...

Page 31: ...3 to the zero position of the scale Purge the air from the gas line Fit a U type manometer Fig 29 to the gas pressure test point on the sleeve The manometer readings are used to calculate the high fir...

Page 32: ...e during the operation must be higher than 24 If at the burner start up the value is higher or equal of 18 the burner locks out due to the extraneous light The display Fig 31 shows parameter 954 flash...

Page 33: ...in turn the dial anti clockwise again by 0 4 WC 5 8 2 Air pressure switch The air pressure switch is connected in differential Fig 34 and is activated by both the negative pressure of the air intake a...

Page 34: ...ion if installed Rotate the air pressure switch knob to the maximum end of scale position The burner must stop in lockout Switch off the burner and disconnect the voltage Rotate the minimum gas pressu...

Page 35: ...ad Open the burner and make sure that all components of the com bustion head are in good condition not deformed by the high tem peratures free of impurities from the surroundings and correctly positio...

Page 36: ...open them Flexible hoses Check to make sure that the flexible hoses are still in good condi tion Fuel tank Approximately every 5 years or whenever necessary suck any water or other impurities present...

Page 37: ...ing the burner To close the burner proceed sa follows push the burner until it is about 4 from the sleeve re connect the leads and slide the burner in until it comes to a stop Refit screw 5 and pull t...

Page 38: ...20059594 36 GB Appendix Spare parts A Appendix Spare parts...

Page 39: ...CONNECTOR C 25 20008601 SERVOMOTOR B 26 20027021 SELECTOR SWITCH 27 20027422 SELECTOR SWITCH 28 20010962 BUTTON 29 20028411 SELECTOR SWITCH 30 20036020 GREEN SIGNAL LIGHT A 31 20036019 WHITE SIGNAL L...

Page 40: ...NECTOR C 65 3012384 OIL PRESSURE SWITCH A 66 20029659 TUBE C 67 3003681 CONNECTOR C 68 20029662 CONNECTOR C 69 3007079 SEAL B 70 3014194 HUB GRADUATE SECTOR 71 20010967 DISPLAY 72 20014366 FUSE HOLDER...

Page 41: ...ssories 39 20059594 GB Gas train according to UL Standards B Appendix Accessories WARNING The installer is responsible for the supply and instal lation of any required safety device s not indicated in...

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