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Summary of Contents for Riello RS 160/M LN
- Page 1 Installation, use and maintenance instructions Gas burners Low-High-Low or Modulating Operation CODE MODEL 20011691 RS 160/M LN 3788070 RS 160/M LN 3788075 RS 160/M LN 2915849 (8) - 06/2014...
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Page 3: Table Of Contents
CONTENTS WARNING TECHNICAL DATA ........page 2 If you smell gas: Electrical data. -
Page 4: Technical Data
TECHNICAL DATA Model RS 160/M LN Output MAX. 1032 - 2065 (1847 *) MBtu/hr 3521 - 7046 (6302 *) MIN. MBtu/hr 1136 Fuel Natural gas - max. delivery SCFH 7046 - pressure at max. delivery “ WC Operation Low - high or modulating... -
Page 5: Burner Models Designations
BURNER MODELS DESIGNATIONS Model RBNA Code Riello Code Voltage Flame safeguard RS 160/M LN 20011691 208-230/3/60 Burner mounted RS 160/M LN C9544000 3788070 460/3/60 Burner mounted RS 160/M LN C9544001 3788075 575/3/60 Burner mounted ACCESSORIES (optional): • TUBES KIT (see page 5): cod. 3010249 •... -
Page 6: Burner Description
BURNER DESCRIPTION (A) 1 Combustion head 2 Ignition electrode 3 Screw for combustion head adjustment 4 High gas pressure switch 5 Sleeve 6 Servomotor controlling the gas butterfly valve and the air damper (by means of a variable profile cam mechanism). -
Page 7: Firing Rate
Output 2579 MBtu/hr: diameter = 23.6 inch; length 6.6 ft COMMERCIAL BOILERS (C) - IMPORTANT The RS 160/M LN burner is suitable for operation on ei- ther flame-inversion boilers* or boilers with combustion chambers featuring flow from the base (three flue pass- es) on which the best results are obtained in terms of low NOx emissions. -
Page 8: Gas Pressure
GAS PRESSURE The adjacent diagram shows minimum pressure losses along the gas supply line depending on the maximum burner output operation with natural gas. Column 1 Gas manifold pressure measured at test point 1)(B), with: • Combustion chamber at 0” WC; •... -
Page 9: Installation
INSTALLATION BOILER PLATE (A) Drill the combustion chamber mounting plate as shown in (A). The position of the threaded holes can be marked using the burner head gasket supplied with the burner. 1 / 16 “ 25 / 32 “ - 14 1 / 2 “... -
Page 10: Combustion Head Adjustment
COMBUSTION HEAD ADJUSTMENT Installation operations are now at the stage where the blast tube and sleeve are secured to the boiler as shown in fig. (A). It is now a very simple matter to set up the combustion head, as this depends solely on the maxi- mum output developed by the burner. -
Page 11: Gas Piping
GAS PIPING • The main gas train must be connected to the gas attachment 1)(A), 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, depending on which is the most convenient, see fig. -
Page 12: Motor Connection
MOTOR CONNECTION LOW GAS PRESSURE SWITCH HIGH GAS PRESSURE SWITCH AIR PRESSURE SWITCH MOTOR CONNECTION at 208-230 or 460V (E) WARNING: Please, pay attention to the indications in case of modifi- cation of voltage, maintenance, or substitution. MOTOR CONNECTION at 575V (F) WARNING: the motors, manufactured for 575V IE2/Epact voltage, have the same control box base of the 208-230/460V... -
Page 13: Servomotor
SERVOMOTOR The servomotor gives simultaneous regulation of the air damper through the variable cam profile 4)(F) and the gas butterfly valve. It rotates by 130° in approx. 35 s. The factory settings must not be changed for the first fir- ing, just check that they comply with the details below. -
Page 14: Burner Starting
BURNER STARTING Position jumpers Trim potentiometers Close the control circuit, with the switch in fig. C) in the AUTO position. On firing (pilot burner and main valve) turn the switch (C) to MAN and the switch 1)(E) in the AUT position. Slide switch MAXIMUM OUTPUT Using button (B), "increase output"... -
Page 15: Air Pressure Switch
AIR PRESSURE SWITCH (A) AIR PRESSURE SWITCH Adjust the air pressure switch after having performed all other burner adjustments with the air pressure switch set to the start of the scale (A). With the burner operating at min. output, increase adjust- ment pressure by slowly turning the relative dial clock- wise until the burner locks out. -
Page 16: Maintenance
MAINTENANCE FLAME INSPECTION WINDOW Combustion The optimum calibration of the burner requires an analy- sis of the flue gases. Significant differences with respect to the previous measurements indicate the points where more care should be exercised during maintenance. Gas leaks Make sure that there are no gas leaks on the pipework between the gas meter and the burner. -
Page 17: Burner Operation
BURNER OPERATION LFL 1.335 Series 01 BURNER STARTING • Load control close. Full Modulation Fan motor starts. • Servomotor starts: 130° rotation to right, until contact is made on cam 1)(A) page 12. The air damper is positioned to MAX. output. •... -
Page 18: Burner Faults
BURNER FAULTS LFL 1.335 Series 01 Control program under fault In case of any disturbance, the sequence mechanism stops and with it the lock-out indicator. The symbol above the reading mark of the indicator gives the type of disturbance: conditions and lock-out indication No start, e.g. -
Page 19: Procedure To Refer Burner Operating Condition In High Altitude Plants
1000 ft each - the corrected capacity is 3847 MBtu/hr; 20°F (305 m each 11°C) is applicable. Burner RS 160/M LN is OK - the corrected burner air pressure is 1.92. CORRECTED BURNER CAPACITY ACCORDING TO ALTITUDE Altitude m. -
Page 20: Appendix Spare Parts List
Appendix - Spare parts... - Page 21 CODE DESCRIPTION BURNER SERIAL NUMBER • • • ≤ 02356XXXXXX 3012583 AIR DAMPER ASSEMBLY • • • ≥ 02366XXXXXX 3013684 AIR DAMPER ASSEMBLY • • • ≤ 02413XXXXXX 3013684 AIR DAMPER ASSEMBLY • • • ≥ 02423XXXXXX 20073610 AIR DAMPER ASSEMBLY •...
- Page 22 CODE DESCRIPTION BURNER SERIAL NUMBER • • • 3012637 ELBOW • • • 3012958 PROBE LEAD • • • 3007891 SEAL • • • 3013095 CONNECTOR • • • C5332011 3012969 GAS PRESSURE SWITCH • • • 3003996 PLUG • • • 3005482 SEAL •...
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