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Technical description of the burner

20154169

3.11 SQN70 Servomotor

Important notes



All interventions (assembly and installation operations,

assistance, etc.) must be carried out by qualified personnel.



Falls and collisions can negatively affect the safety functions.

In this case, the servomotor must not be operated, even if it
displays no evident damage.



Fully disconnect the burner from the mains when working near
terminals and servomotor connections.



Condensation and exposure to water are not allowed.



For safety reasons, the servomotor must be checked after
long periods of non-use.

NOTE:
Do not allow condensation, ice formation or water inlet!

•

Technical data

Tab. G

WARNING

To avoid accidents, material or environmental
damage, observe the following instructions!
Avoid opening, modifying or forcing the
servomotor.

Mains voltage

115V - 15%+10%

Mains frequency

50 / 60 Hz +/- 6%

Power absorption

6 VA

Motor

Synchronous

Drive angle

Varying between 0° and 90°

NEMA rating

NEMA1, 2, 5 and 12 for indoor use

Rotation direction

Anticlockwise

Rated torque (max.)

22 lb-in

Holding torque

11.5 lb-in

Operation time

25 s. at 90° at 60 Hz

Weight 1

Environmental conditions:
Temperature range

-5°F... to 140°F

S9795

Fig. 7

Содержание RS 28/M

Страница 1: ...20154169 2 11 2020 Installation use and maintenance instructions Forced draught gas burners Low High Low or Modulating Operation CODE MODEL 20165993 RS 28 M 20166042 RS 38 M 20166043 RS 50 M GB...

Страница 2: ...Original instructions...

Страница 3: ...10 3 9 Electrical panel description 11 3 10 RFGO A13 control box 12 3 11 SQN70 Servomotor 13 4 Installation 14 4 1 Notes on safety for the installation 14 4 2 Handling 14 4 3 Preliminary checks 14 4...

Страница 4: ...6 2 Maintenance programme 29 6 2 1 Maintenance frequency 29 6 2 2 Safety test with gas ball valve closed 29 6 2 3 Checking and cleaning 29 6 2 4 Flame presence check 30 6 2 5 Safety components 30 6 3...

Страница 5: ...ar 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 shock...

Страница 6: ...hat pre vent the regular development of the flame as structurally established insufficient and inappropriate surveillance and care of those burner components most subject to wear and tear use of non o...

Страница 7: ...intenance 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 spec...

Страница 8: ...99 2201 322 645 1099 2201 322 645 kW Low MBtu hr kW 198 58 266 78 321 94 321 94 Fuel Natural or propane gas Max delivery SCFH 1232 1665 2201 2201 Pressure at maximum delivery 2 natural gas WC 2 95 2 6...

Страница 9: ...RS 38 M TC FS1 20154129 20166042 120 1 60 Burner mounted RS 38 M TC FS1 20154134 RS 38 M TC FS1 20154131 RS 50 M TC FS1 20154141 Burner mounted RS 50 M TC FS1 20154137 RS 50 M TC FS1 20154146 2016604...

Страница 10: ...aximum range that can be reached See Procedure to refer burner operating condition at an altitude and or at a combustion supporter air tempera ture different to the standard values 328 ft above sea le...

Страница 11: ...3 indicates the diameter and length of the test combustion chamber Example Output 1388 Mbtu hr diameter 20 inch length 4 9 ft AIR TEMPERATURE Altitude Altitude bar press bar press 0 5 10 15 20 25 30...

Страница 12: ...per is fully closed in order to reduce heat loss 12 Plate with four hole knock outs for electrical cable routing 13 Air inlet to fan 14 Gas input connection 15 Gas butterfly valve 16 Boiler mounting f...

Страница 13: ...ic manual OFF operation Button for increase decrease output 2 Motor contactor 3 Thermal relay with reset button 4 Bracket for the application of RWF kit 5 Control box base 6 Ignition transformer 7 Rel...

Страница 14: ...e For the safety and reliability of the control box comply with the following instructions avoid conditions that can favour the development of conden sate and humidity Otherwise before switching on ag...

Страница 15: ...not allowed For safety reasons the servomotor must be checked after long periods of non use NOTE Do not allow condensation ice formation or water inlet Technical data Tab G WARNING To avoid accidents...

Страница 16: ...le means of handling Check also that the area in which you are working is empty and that there is an adequate escape area i e a free safe area to which you can quickly move if the burner should fall D...

Страница 17: ...the burner Fig 9 remove screw 14 and withdraw the cover 15 Disengage the swivel coupling 4 from the graduated sector 5 Remove the screws 2 from the slide bars 3 Remove screw 1 and pull the burner back...

Страница 18: ...between MIN 378 7 and MAX 1288 MBtu hr The MIN output of 378 7 MBtu hr is not found in the values of tTab J and therefore diagram Fig 13 page 17 is valid from which it results that for a MAX output o...

Страница 19: ...sleeve so that it is positioned as shown in Fig 14 Refit screws 2 on slide bars 3 Secure the burner to the sleeve by tightening screw 1 and then re fit the split pin into one of two slide bars 3 Recon...

Страница 20: ...ately from the burner Key Fig 16 1 Gas input pipe 2 Manual valve 3 Pressure regulator 4 Low gas pressure switch 5 1st safety shut off valve 6 2nd safety shut off valve 7 Standard issue burner with fla...

Страница 21: ...2 Fig 12 page 17 B adjusted as indicated in dia gram Fig 13 page 17 Gas pressure at test point 1 Fig 17 2 36 WC Pressure in combustion chamber 0 79 WC 2 36 0 79 1 57 WC An output of 795 MBtu hr shown...

Страница 22: ...plifiers which allow using it for applications with UV sensor only FR sensor only or with both sensors UV FR The FR amplifier circuit is subject to constant auto control which allows to use it for app...

Страница 23: ...to avoid damage to the motor due to an excessive absorption increase or if a phase is missing For calibration 2 refer to the table indicated in the electrical layout electrical wiring in charge of th...

Страница 24: ...n to the indications in case of modification of voltage maintenance or substitution 4 13 Motor connection at 575V WARNING the motors manufactured for 575V IE3 NEMA Premium Efficiency voltage have the...

Страница 25: ...and check it is rotating anticlockwise Fig 23 If this is not the case set the burner switch to 0 OFF and wait for the control box to carry out the switch off phase Invert the phases on the three phas...

Страница 26: ...cam The air damper closes completely to reduce ther mal dispersion to a minimum Every time output is changed the servomotor automatically modi fies gas delivery gas butterfly valve and air delivery fa...

Страница 27: ...he manometer readings are used to calculate MAX burner input using the tables on page 19 5 Start up calibration and operation of the burner WARNING The first start up of the burner must be carried out...

Страница 28: ...he gas butterfly valve must be closed 0 Orange cam 15 Adjusts the ignition position and the MIN output 5 3 Burner start up Close the control circuit and set switch 1 Fig 30 to MAN As soon as the burne...

Страница 29: ...5 5 3 Minimum output Minimum output must be selected within the firing rate range shown on page 8 Press switch 2 Fig 30 page 26 output reduction until the servo motor has closed the air damper and th...

Страница 30: ...a second pipe between the air pressure switch and the suction inlet of the fan In this way the air pressure switch operates as differential pressure switch 5 6 2 Low gas pressure switch Adjust the low...

Страница 31: ...tion The actual electrical supply of the solenoid gas valves can be ver ified by inserting a tester Some valves are equipped with light sig nals or close open position indicator that turn on at the sa...

Страница 32: ...2 to 6 in dicate the flame signal level respectively See LED indicator and special function on page 32 Check Mode With burner flame on hold the reset button on the flame control pressed for at least...

Страница 33: ...ting the pilot gas line 6 4 Closing the burner Remove the split pin 9 Fig 36 and push the burner until it is about 4 from the sleeve re connect the leads and slide in the burner until it comes to a st...

Страница 34: ...20 of the signal power To exit the check mode function press the reset button the flame control will go back to the normal operating mode 7 3 Flame control lock out or emergency stop condition The RFG...

Страница 35: ...damper Closed damper Modulation Ignition Flame Status Icon Power OFF ON OFF Not ready Diagnostics Green Standby Green Servomotor movement Note 3 OFF Flashing Flashing OFF Green Waiting for closing Gr...

Страница 36: ...e material problems severe injuries or death It is the owner or user s responsibility to make sure that the equipment described is installed used and commissioned in compliance with the requirements p...

Страница 37: ...FI Red 17 Wiring fault Red 18 Safety relay fault Red 19 Combustion airflow switch fault in the rest position Red 20 UV no flame at the end of the 2nd safety time MTFI Red 21 Safety relay fault Red 22...

Страница 38: ...ack fault Red 51 Pilot feedback fault Red 52 Piloted valve feedback fault Red 53 Actuator feedback waiting time expired Red 54 Direct ignition valve feedback fault Red 55 Internal processor fault Red...

Страница 39: ...ult Internal fault Replace the control device 15 Internal processor fault Internal fault Replace the control device o 16 No flame 1st safety time PTFI No flame at the end of the first safety time Insp...

Страница 40: ...sists contact the distributor factory 51 Pilot feedback fault The system detected the presence of voltage on T17 at the wrong moment or there is no voltage when necessary Check the wiring and make sur...

Страница 41: ...169 GB A Appendix Spare parts 12 13 14 1 2 10 11 69 4 3 43 67 63 66 53 55 56 64 44 60 62 42 23 24 25 26 27 28 49 47 46 45 52 22 68 7 9 64 50 20 17 71 72 21 16 18 29 15 37 38 8 39 74 40 40 30 31 32 33...

Страница 42: ...0 3003763 INSPECTION WINDOW 11 3003842 BAR 12 3012987 COVER 12 3013873 COVER 13 3003766 SCREW 14 3007627 MEMBRAN 15 3013009 PILOT TUBE 16 20144930 CONTROL BOX B 17 3012989 CONTACTOR C 17 20006633 CONT...

Страница 43: ...36 3003867 TUBE 37 3012174 PROBE A 38 3013136 ELECTRODE A 39 3013001 U BOLT 40 3013002 SUPPORT 42 3003863 PLUG 43 3013007 SUPPORT 44 3012085 AIR DAMPER ASSEMBLY 45 3003873 TEST POINT 46 3013196 CONTRO...

Страница 44: ...57 3005483 SEAL C 58 3013004 ELBOW 60 3003829 HALF SHELL 62 3003888 SPACER 63 3003883 DOME 64 3006098 PIN JOINT 66 3003881 TIE ROD 67 3012062 CAM 68 3013006 SHAFT 69 3013478 SPRING LEVER A 70 3013874...

Страница 45: ...ith the kit inch Code RS 28 M 81 2 1313 16 3010256 RS 38 M 81 2 13 13 16 3010257 RS 50 M 81 2 13 13 16 3010258 Burner RS 28 M RS 38 M RS 50 M Output MBtu hr 358 1232 437 1665 549 1986 Blast tube lengt...

Страница 46: ...Low Fire High Fire Main Power Supply O2 Low Fire High Fire Control Power Supply CO Low Fire High Fire Burner Firing Rate NOX Low Fire High Fire Manifold Pressure Net Stack Temp Low Fire High Fire Pil...

Страница 47: ......

Страница 48: ...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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