Riello RS 34 MZ Installation, Use And Maintenance Instructions Download Page 1

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Installation, use and maintenance instructions

20190369 (1) - 06/2021

Forced draught gas burners

Progressive two-stage operation

CODE

MODEL

20190310

RS 34 MZ

20190311

RS 44 MZ

Summary of Contents for RS 34 MZ

Page 1: ...Installation use and maintenance instructions 20190369 1 06 2021 Forced draught gas burners Progressive two stage operation CODE MODEL 20190310 RS 34 MZ 20190311 RS 44 MZ GB...

Page 2: ...Original instructions...

Page 3: ...hecks 15 4 4 Operating position 16 4 5 Preparing the boiler 16 4 5 1 Boring the boiler plate 16 4 5 2 Blast tube length 16 4 5 3 Securing the burner to the boiler 16 4 6 Access to head internal part 1...

Page 4: ...aintenance 30 6 1 Notes on safety for the maintenance 30 6 2 Maintenance programme 30 6 2 1 Maintenance frequency 30 6 2 2 Safety test with no gas supply 30 6 2 3 Checking and cleaning 30 6 2 4 Safety...

Page 5: ...ried out correctly may cause damage to the machine and or injury to people DANGER DANGER LIVE COMPONENTS This symbol indicates operations which if not carried out correctly lead to electric shocks wit...

Page 6: ...vent of damage to things or injury to people 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 unreas...

Page 7: ...tenance 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 machine and intends to use it for the specifi...

Page 8: ...C DESIGNATION EXTENDED DESIGNATION MZ 3N 400V 50Hz 3 230V 50Hz 230V 50Hz 110V 50 60Hz Heavy oil E Electronic cam EV Electronic cam and variable speed with Inverter M Mechanical cam P Proportional air...

Page 9: ...4 Electrical data Tab C Model RS 34 MZ RS 44 MZ Output 1 G20 G25 G20 G25 Max kW Mcal h 130 390 112 336 200 550 172 473 Min kW Mcal h 45 39 80 69 Fuel Natural gas G20 G25 Pressione gas alla potenza max...

Page 10: ...ombustion head requires the burner to be opened and the rear part drawn back on the slide bars The dimensions of the open burner are indicated by dimension U Tab D P B T T 1 D N E F C L H U Fig 1 2015...

Page 11: ...of the diagram RS 34 MZ 45 kW RS 44 MZ 80 kW ATTENTION The firing rate value Fig 2 has been obtained considering an ambient temperature of 20 C an atmospheric pressure of 1013 mbar approx 0 m a s l a...

Page 12: ...r has a CE type approval preliminary tests are recommended for boilers or furnaces having a combustion chamber size much different than the one specified in Fig 3 3 8 Burner equipment The burner is su...

Page 13: ...through the variable profile cam mechanism When the burner is not operating the air damper is fully closed in order to reduce heat dispersion from the boiler due to the flue draught which draws air fr...

Page 14: ...rner off on one for 1st 2nd stage operation 2 Ionisation probe connector 3 Areas for passage of electric cables 4 Relay 5 Control box base 6 Filter to protect against radio disturbance 7 Ignition tran...

Page 15: ...he development of conden sate and humidity Otherwise before switching on again make sure that the entire control box is perfectly dry Static charges must be avoided since they can damage the control b...

Page 16: ...otor must be checked after long periods of non use Technical data Tab E ATTENTION To avoid accidents material or environmental damage observe the following instructions Avoid opening modifying or forc...

Page 17: ...ir inside the boiler must be free from hazardous mixes e g chloride fluoride halo gen if present it is highly recommended to carry out cleaning and maintenance more frequently ATTENTION The handling o...

Page 18: ...e blast tube that the probe and electrode are correctly positioned as in Fig 13 on page 17 Separate the combustion head from the rest of the burner Fig 11 disengage the articulated coupling 4 from the...

Page 19: ...alibrate them ATTENTION The burner boiler seal must be hermetic after burner start up check there is no leakage of flue gases into the external environment Fig 12 D3835 ATTENTION Before securing the b...

Page 20: ...ase the application needs a particular setup it is possible to modify the central air delivery using the ring nut 4 Fig 14 up to the notch indicated in diagram Fig 16 In order to carry out this operat...

Page 21: ...tection control devices are compulsory for burners with maximum outputs over 1200 kW 9 Gasket for flanged versions only 10 Pressure adjuster 11 Train burner adaptor supplied separately P2 Pressure ups...

Page 22: ...aximum opening 90 DANGER Disconnect the power supply using the system main switch Check that there are no gas leaks Pay attention when handling the train danger of crushing of limbs Make sure that the...

Page 23: ...mbar column 1 corresponds in the table to an output of 260 kW This value serves as a rough guide the effective output must be measured at the gas meter To calculate the required gas pressure at test p...

Page 24: ...ostat pres sure switch If this is not the case a time switch should be fitted in series to TL to stop the burner at least once every 24 hours Refer to the wiring diagrams The electrical safety of the...

Page 25: ...t up for pipe unions drill if 6A pipe unions are required 4 11 Motor rotation As soon as the burner starts place yourself in front of the cooling fan of the fan motor and check that it turns anticlock...

Page 26: ...raduated sector controlling the gas butterfly valve The servomotor rotates by 90 in 12 seconds Do not alter the factory setting for the 4 cams just check that they are as specified below 5 Start up ca...

Page 27: ...pressure switch 5 Minimum gas pressure switch 5 6 1 Ignition output According to EN 676 Burners with MAX output up to 120 kW Ignition can occur at the maximum operation output level Example max opera...

Page 28: ...g a little at a time until the angle is changed from 15 to 13 or 11 If it is necessary to increase it move to 2nd stage operation by altering the setting of switch 2 Fig 28 and increase the angle of c...

Page 29: ...the burner operating in 2nd stage increase adjustment pressure by slowly turning the relative knob clockwise until the burner locks out Then turn the knob anticlockwise by 2 mbar 0 2 kPa and repeat bu...

Page 30: ...does not fire it goes into lockout within 3 s of the opening of the gas solenoid valve and 49 s after the closing of remote control TL The control box red pilot light will light up Burner flame goes...

Page 31: ...op Turn the gas maximum pressure switch knob to the minimum end of scale position Turn the air pressure switch knob to the maximum end of scale position The burner must stop in lockout Turn off the bu...

Page 32: ...during maintenance Combustion head Open the burner and make sure that all components of the combustion head are in good condition not deformed by the high temperatures free of impurities from the surr...

Page 33: ...rranty terms indicated in the delivery or payment conditions Tab I EN 676 Air excess CO Max output 1 2 Max output 1 3 GAS Theoretical max CO2 0 O2 CO2 Calibration mg kWh 1 2 1 3 G 20 11 7 9 7 9 100 G...

Page 34: ...over 2 Fig 36 and fix with the screw 1 Fig 36 6 5 Electrical panel maintenance If it is necessary to carry out maintenance on the electrical panel 1 Fig 37 it is possible to remove only the fan unit 2...

Page 35: ...ot switch on and the lock out appears Air pressure switch in operating position Adjust or replace The burner switches on but then stops in lockout Air pressure switch does not switch owing to lack of...

Page 36: ...ce The burner continues to repeat the start up cy cle without lockout The gas pressure in the gas mains lies very close to the value to which the gas pressure switch has been set The sudden drop in pr...

Page 37: ...t connections exceeds 20 metres a protection kit is available as an interface between the control box and the burner Gas trains in compliance with EN 676 Please refer to manual A Appendix Accessories...

Page 38: ...l layout B Appendix Electrical panel layout Index of layouts 2 Indication of references 3 Operation layout RS 34 MZ RS 44 MZ 4 Operation layout 5 Electrical connection set by installer 1 2 Sheet no 1...

Page 39: ...0 01 0 2 0 0 0 0 0 0 0 03 0 4 0 0 5 0 4 6 7 88 9 8 6 7 6 9 6 8 7 6 7 8 6 9 0 0 3 0 1 0 1 1 03 1 1 0 1 A A B 1 1 1 B 1 1 1 B 1 1 C 1 B 1 1 1 D B 1 1 1 B 1 1 1 B 1 1 1 B 1 1 1 B 1 1 1 B 1 1 1 B 1 1 1 B...

Page 40: ...0 01 0 2 0 0 0 0 0 0 03 03 0 4 0 0 5 0 4 6 7 88 9 8 6 7 6 9 6 8 7 6 7 8 6 9 0 0 3 0 1 0 1 1 03 1 1 0 1 A A B 1 1 1 B 1 1 1 B 1 1 C 1 B 1 1 1 D B 1 1 1 B 1 1 1 B 1 1 1 B 1 1 1 B 1 1 1 B 1 1 1 B 1 1 1 B...

Page 41: ...39 20190369 GB Appendix Electrical panel layout...

Page 42: ...20190369 40 GB Appendix Electrical panel layout 0 0 1 1 2 3 1 1 4 56 1 1 1 7 8 9 8 0 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2...

Page 43: ...gas pressure switch Q2 Single phase disconnecting switch RS Remote burner reset button SM Servomotor S1 Selector burner off on S2 Selector 1st 2 nd stage operation TA Ignition transformer TL Limit th...

Page 44: ...p A I 37045 Legnago VR Tel 39 0442 630111 http www riello it http www riello com Manufacturing site Riello Heating Equipment Shanghai CO LTD No 388 Jinbai Road Jinshan Industrial Zone 201506 Shanghai...

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