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Installation

19  

20160742

GB

4.8

Gas supply

4.8.1

Gas piping

The main gas train must be connected to the gas attachment
1)(Fig. 16), using flange 2), gasket 3) and screws 4) supplied with
the burner.
The gas train can enter the burner from the right or left side, de-
pending on which is the most convenient.
The gas safety shut-off valves 5)-6) must be as close as possible
to the burner to ensure gas reaches the combustion head within the
safety time range.
The pilot gas train must be connected to the gas attachment 5)  and
can enter the burner from the right or left side.

4.8.2

Gas train

It must be type-approved according to UL Standards and is sup-
plied separately from the burner.

Key to layout 

(Fig. 17)

1

Gas input pipe

2

Manual valve

3

Pressure regulator

4

Low gas pressure switch

5

1

st 

safety shut off valve

6

2

nd

 safety shut off valve

7

Standard issue burner gasket with flange

8

Gas adjustment butterfly valve *

9

Burner

10 High gas pressure switch *
(*) On the burner

Explosion danger due to fuel leaks in the presence
of a flammable source.
Precautions: avoid knocking, attrition, sparks and
heat. 
Make sure that the fuel interception tap is closed
before performing any operation on the burner.

WARNING

The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.

DANGER

Disconnect the electrical power using the main sys-
tem switch.

Check that there are no gas leaks.

Beware of train movements: danger of crushing of
limbs.

Make sure that the gas train is properly installed by
checking for any fuel leaks. 

The operator must use appropriate tools for instal-
lation.

WARNING

See the accompanying instructions for the adjust-
ment of the gas train.

Fig. 16

D2393

Fig. 17

GAS PILOT LINE

MAIN GAS LINE

D2438

Summary of Contents for RS 190/M

Page 1: ...20160742 6 03 2022 Installation use and maintenance instructions Forced draught gas burners Low high low or modulating operation CODE MODEL 20166104 20166105 20166106 RS 190 M GB...

Page 2: ...Original instructions...

Page 3: ...control box 12 3 10 Servomotor SQM41 13 4 Installation 14 4 1 Notes on safety for the installation 14 4 2 Handling 14 4 3 Preliminary checks 14 4 4 Preparing the boiler 14 4 4 1 Boiler plate 14 4 4 2...

Page 4: ...tputs 32 5 9 TRIM potentiometers functions calibration 32 5 9 1 Range Adjustment range 32 5 10 Final checks with the burner working 33 6 Maintenance 34 6 1 Notes on safety for the maintenance 34 6 2 M...

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: ...Accuracy Category 3 measurement as described in EN ISO 3746 3 Technical description of the burner Model Riello Code RBNA Code Voltage Flame safeguard RS 190 M TC FS1 20160257 20166104 208 230 3 60 Bur...

Page 9: ...HP kW V A 3500 7 5 5 5 208 230 17 8 3500 7 5 5 5 460 8 9 3500 7 5 5 5 575 7 1 Ignition transformer V1 V2 I1 I2 120 V 1 X 8 kV 1 6 A 20 mA Electrical power consumption W max 6100 6100 6080 Electrical...

Page 10: ...spection of the combustion head requires the burner to be opened by withdrawing the rear part on the slide bars The maximum dimension of the burner when open is give by measurement V Tab C P B C T D F...

Page 11: ...ange that can be reached see Procedure to refer burner operating condition at an altitude and or at a combustion supporter air temperature different to the standard values 328 ft above sea level 68 F...

Page 12: ...3 indicates the diameter and length of the test combustion chamber Example Output 2579 MBtu hr diameter 24 inch length 6 6 ft AIR TEMPERATURE Altitude Altitude bar press bar press 0 5 10 15 20 25 30 4...

Page 13: ...s butterfly valve 9 Motor contactor and thermal relay with reset button 10 Power switch for different operations Automatic manual OFF operation Power increase power reduction button 11 Terminal strip...

Page 14: ...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 aga...

Page 15: ...cal data WARNING To avoid accidents material or environmental damage observe the following instructions Avoid opening modifying or forcing the ser vomotor Mains voltage 120 V 15 10 Mains frequency 50...

Page 16: ...ple at a distance 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 i e a fre...

Page 17: ...t the insulation 13 14 is not required unless it is required by the boiler manufacturer 4 5 Securing the burner to the boiler Detach the combustion head from the burner Fig 8 loosen the four screws 3...

Page 18: ...the inner pipe 3 Replace the disc 4 with the supplied disc without hole If there is low gas supply pressure the head may be left in standard configuration limiting the minimum modulation to 1980 MBtu...

Page 19: ...adjustment Place the pilot and electrode as shown in Fig 13 The pilot works correctly at pressures ranging from 5 12 WC IMPORTANT To set the pilot without main burner operation proceed as follows disc...

Page 20: ...20160742 18 GB Installation 4 7 1 Electrical connections Fig 15 S9810...

Page 21: ...e switch 5 1st safety shut off valve 6 2nd safety shut off valve 7 Standard issue burner gasket with flange 8 Gas adjustment butterfly valve 9 Burner 10 High gas pressure switch On the burner Explosio...

Page 22: ...hamber pressure from the gas pres sure measured at test point 1 Fig 19 find the pressure value in diagram Fig 18 read off the corresponding output on the left Example Maximum output operation Natural...

Page 23: ...r corresponds to that shown on the 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 fail...

Page 24: ...cable grommet 2 single phase power supply and other devices with 1 2 inch cable grommet 3 Available consents safety minimum gas pressure switch gas valves and other devices with 3 8 inch cable gromme...

Page 25: ...e motor is 400V To reset in the case of an intervention of the thermal relay press the button RESET Fig 22 The button STOP Fig 22 opens the NC 95 96 contact and stops the motor To test the thermal rel...

Page 26: ...the motors manufactured for 575V IE3 NEMA Premium Efficiency voltage have the same control box base of the IE1 and IE2 Epact motors Please pay attention to the indications in case of maintenance or su...

Page 27: ...locks out when demand for heat is less than the heat supplied by the burner at min output Load control opens The servomotor returns to the 0 angle limited by contact with orange cam The air damper clo...

Page 28: ...ig 34 to the gas pressure test point on the sleeve The manometer readings are used to calculate the MAX burner power using the diagram on page 20 Before starting up the burner it is good practice to a...

Page 29: ...shown below in the event of a modification follow what is described below for each cam 10 Potentiometer already set in factory do not carry out any adjustment The factory settings must not be changed...

Page 30: ...check the direction of rotation of the fan blade looking through the flame inspection window 14 Fig 4 page 11 0 0 3 0 60 90 0 0 3 0 60 90 0 0 3 0 60 90 6 0 6 0 9 0 9 0 3 0 3 0 0 0 13 L SQ M4 0 SQ M 4...

Page 31: ...solute mode Note the presence of a T connection not supplied The air pressure switch may operate in differential operation in two pipe system If a negative pressure in the combustion chamber during pr...

Page 32: ...O value which must always be less than 100 mg kWh 93 ppm Increase the adjustment of the gas pressure switch until it inter venes causing the burner shutdown remove the pressure gauge and close the coc...

Page 33: ...ut Minimum output must be selected within the Firing rates range shown at page 9 Move the selector 1 Fig 38 page 28 in manual position Move the selector 2 Fig 38 page 28 in position reduc tion output...

Page 34: ...the switch positions mini mum and maximum position 1 Set cam I to the required high fire position e g 130 position is indicated on the scale next to the cam 2 2 Set cam V to the required low fire pos...

Page 35: ...nd of scale position 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 Disconnect the minimum ga...

Page 36: ...ator that turn on at the same time as their power supply 6 2 3 Checking and cleaning Combustion The optimum calibration of the burner requires an analysis of the flue gases Significant differences wit...

Page 37: ...control pressed for at least 3 sec the button colour will change from green to yellow each operating status signalling LED will be compared to 20 of the maximum brightness press the reset button again...

Page 38: ...ignition electrode cables and then slide the burner up to the sleeve so that it is positioned as shown in Fig 49 secure the burner to the sleeve by tightening screw 3 reconnect the swirler joint 7 DA...

Page 39: ...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...

Page 40: ...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...

Page 41: ...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...

Page 42: ...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...

Page 43: ...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...

Page 44: ...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...

Page 45: ...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...

Page 46: ...pendix Spare parts 25 26 31 35 36 38 40 49 50 51 52 53 55 56 57 57 59 60 61 57 62 64 57 66 67 68 69 65 24 21 22 23 4 5 17 19 20 8 12 13 15 16 18 9 10 11 6 6 31 58 63 7 39 43 41 42 45 46 47 3 54 2 1 34...

Page 47: ...3012080 SWITCH 14 3012604 DIFFUSER C 15 20115421 STARTER B 16 3012956 TRANSFORMER 17 3012934 COVER C 18 20008598 MOTOR C 18 20118879 MOTOR 19 20161397 ANCHOR PLATE B 20 20161228 SERVOMOTOR 21 3012012...

Page 48: ...ON 49 3013055 TUBE 50 3007088 SEAL 51 3005482 SEAL 52 3012971 FLANGE 53 3003996 PLUG 54 3012595 AIR INTAKE 55 20161231 CAM HOLDER SHAFT C 56 3012350 LEVER 57 3006098 PIN JOINT 58 20073810 U BOLT C 59...

Page 49: ...the burner to operate on LPG Gas train according to UL Standards B Appendix Accessories Burner Output Code RS 190 M 1761 8673 MBtu hr 20080781 WARNING The installer is responsible for the supply and i...

Page 50: ...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 Pilot Flame Signal Comb Efficiency Low Fire High...

Page 51: ......

Page 52: ...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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