Installation, use and maintenance instructions
Gas Burners
RS 68/M LN - RS 120/M LN
Low-High-Low or Modulating Operation
C6505072 - 2915848 (5) - 06/2011
Страница 1: ...Installation use and maintenance instructions Gas Burners RS 68 M LN RS 120 M LN Low High Low or Modulating Operation C6505072 2915848 5 06 2011...
Страница 2: ...7 Siemens LFL control troubleshooting guide 18 Motor connection 19 Factory wiring diagram burner mounted LFL 20 Field wiring diagram burner mounted LFL 20 Calibration of the thermal relay 21 Factory w...
Страница 3: ...ply 10 V Ph Hz 208 230 3 60 Fan motor rpm W HP V A 3360 1800 2 4 208 230 7 4 3400 2200 3 208 230 8 5 Ignition transformer V1 V2 I1 I2 120 V 1 X 8 kV 1 6 A 20 mA Electrical power consumption W max 2350...
Страница 4: ...3 9 Ignition transformer V1 V2 I1 I2 120 V 1 X 8 kV 1 6 A 20 mA Electrical power consumption W max 2600 Electrical control circuit coms W 750 Total electrical consumption W 3350 Electrical protection...
Страница 5: ...may occur FLAME SAFEGUARD LOCK OUT if the flame relay 12 A pushbutton lights up it indi cates that the burner is in lock out To reset press the pushbutton MOTOR TRIP release by pressing the pushbutton...
Страница 6: ...diameter 23 6 inch length 6 6 ft COMMERCIAL BOILERS C IMPORTANT The RS 68 M LN RS 120 M LN burners are suitable for operation on either flame inversion boilers or boilers with combustion chambers fea...
Страница 7: ...pressure from the gas pressure measured at test point 1 B Find the nearest pressure value to your result in dia gram for the burner in question Read off the corresponding output on the left Example RS...
Страница 8: ...rried out if it was required secure the flange 11 B to the boiler plate inserting the gasket 9 B supplied with the burner Use the 4 screws also supplied with the unit after first pro tecting the threa...
Страница 9: ...fig B page 6 If the pressure of gas allows it by closing ring nut 2 B a reduction of the formation of NOx is obtained Continuing with the previous example page 8 indicates that for burner RS 68 M LN...
Страница 10: ...st be connected to the gas attachment 5 A and can enter the burner from the right or left side GAS TRAIN B It must be type approved according to required stand ards and is supplied separately from the...
Страница 11: ...the scale B Adjust the air pressure switch to the zero position of the scale C Purge the air from the gas line Fit a U type manometer D to the gas pressure test point on the sleeve The manometer read...
Страница 12: ...r the stroke end cam 2 to exploit as far as possible the variable profile cam Trim potentiometer POS Limits an intermediate operating position between MAX and MIN supplying power to the P terminal in...
Страница 13: ...ble profile cam 4 D If a lower modulation minimum is required than the level set on cam 3 of the servomotor 20 decrease the cam setting INTERMEDIATE OUTPUTS With the switch C in the AUTO position the...
Страница 14: ...burner adjustments with the maximum gas pressure switch set to the end of the scale B With the burner operating at MAX output reduce the adjustment pressure by slowly turning the adjustment dial antic...
Страница 15: ...ened Clean the outside of the burner taking special care with the swivel joints and cam Combustion Adjust the burner if the combustion values found at the beginning of the operation do not comply wit...
Страница 16: ...7 9361 7500 7404 7500 7673 7955 8258 8564 8892 9238 9618 10029 8000 7897 8000 8185 8485 8809 9135 9484 9854 10259 10698 8500 8391 8500 8697 9016 9359 9705 10077 10470 10900 11367 9000 8885 9000 9208 9...
Страница 17: ...plied by the burner at min output Load control opens The servomotor returns to the 0 angle limited by contact with cam 2 The air damper closes completely to reduce thermal dispersion to a minimum Ever...
Страница 18: ...air pressure control Every air pressure failure after this moment in time leads to lock out too Lock out due to a fault in the flame supervision circuit Interruption of startup sequence because the po...
Страница 19: ...WARNING the motors manufactured for 575V IE2 Epact voltage have the same control box base of the IE1 motors Please pay attention to the indications in case of maintenance or substitution Reversible d...
Страница 20: ...20 Factory Wiring Diagram RS 68 M LN RS 120 M LN with burner mounted Siemens LFL control D2332 B D11641 Field Wiring Diagram RS 68 M LN RS 120 M LN with burner mounted Siemens LFL control A...
Страница 21: ...08 230 V 460 V 575 V 208 230 V 460 V 575 V F A Fuse Non time Delay 20 A 15 A 8 A 25 A 15 A 10 A Time Delay 12 A 8 A 5 A 15 A 9 A 6 A S AWG 14 14 14 14 14 14 RS 68 M LN RS 120 M LN 208 230 V 460 V 575...
Страница 22: ...ar to star for IE2 EPACT according to the indications of page 19 and change the setting of the thermal overload according to the table at page 21 or 575 V power supply depending on the burner model se...
Страница 23: ...23 Factory Wiring Diagram RS 68 M LN RS 120 M LN with auxiliary control panel Layout A...
Страница 24: ...panel in order to have the complete wiring diagram Key to layout B4 Ionisation probe flame rod F1 Fan motor thermal overload K1 Fan motor contactor MB Burner terminal strip MV Fan motor S10 Air press...
Страница 25: ...67 58 5 4 48 47 46 53 51 52 54 34 35 37 36 21 10 18 17 15 16 8 9 3 13 11 12 1 2 1 0 2 3 4 5 6 7 8 9 57 61 57 60 63 64 57 66 56 57 24 65 39 49 59 62 32 30 40 41 42 43 33 23 25 55 50 31 70 29 27 44 6 2...
Страница 26: ...08 230 460V RELE CONTATTORE 208 230 460V 15 3012937 OVERLOAD CONTACTOR 208 230 460V RELE CONTATTORE 208 230 460V 15 3013124 OVERLOAD CONTACTOR 575V RELE CONTATTORE 575V 15 3013125 OVERLOAD CONTACTOR 5...
Страница 27: ...E GOMITO 53 3003996 PLUG TAPPO 54 3012348 AIR INTAKE BOCCA D ASPIRAZIONE 55 3012972 SHAFT ALBERO 56 3012350 LEVER LEVA 57 3006098 PIN JOINT SNODO SFERICO 58 3012059 BUTTERFLY VALVE SHAFT ALBERO MANICO...
