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Page 3

XGN Handbook

Setting the Air Pressure Switch ................................................................................................................ 15

Setting the Flame Signal ........................................................................................................................... 15

Setting the Low Gas Pressure Switch ....................................................................................................... 16

F

INAL

 C

HECK

.............................................................................................................. 16

T

HE

 RWF40 M

ODULATION

 C

ONTROL

............................................................................ 16

Basic display ............................................................................................................................................ 16

To change the working set point. ............................................................................................................. 16

RWF40 Recommended Parameters ......................................................................................................... 17

To enter a new parameter ....................................................................................................................... 17

Configuration Values ............................................................................................................................... 17

MBC D

ISPLAYS

.......................................................................................................... 18

Standby Display ....................................................................................................................................... 18

Operating Display ................................................................................................................................... 18

Information Display ................................................................................................................................. 18

Service Display ........................................................................................................................................ 18

R

OUTINE

 S

AFETY

 C

HECKS

.............................................................................................. 19

Flame Detection System (IRD Cell) .......................................................................................................... 19

R

OUTINE

 M

AINTENANCE

............................................................................................... 19

Combustion Air Fan ................................................................................................................................. 19

Inner Assembly ........................................................................................................................................ 19

Air Diffuser and Gas Nozzle .................................................................................................................... 20

Ignition Electrode .................................................................................................................................... 20

Replacement of Control Valve SKP2x ...................................................................................................... 20

F

AULT

 F

INDING

............................................................................................................ 20

MBC Error Codes .................................................................................................................................... 20

Incorrect Rotation of Burner Motor ......................................................................................................... 21

Motor & Fan – Removal .......................................................................................................................... 21

Burner Motor Fails to Start ....................................................................................................................... 21

Starting Flame Failure Without Ignition .................................................................................................... 21

Starting Flame Failure Without Flame ...................................................................................................... 21

Burner Fails to Establish Main Flame ........................................................................................................ 21

IR Detector Possible faults ........................................................................................................................ 21

6FH Error - Failure of the air servo motor ................................................................................................ 21

6FH Error - Failure of the gas servo motor ................................................................................................ 22

S

PARE

 P

ARTS

............................................................................................................... 22

B

URNER

 P

ERFORMANCE

 C

URVES

..................................................................................... 22

XGN650-23 ............................................................................................................................................. 23

XGN450-23 ............................................................................................................................................. 23

XGN1150-38 ........................................................................................................................................... 24

XGN1000-25 ........................................................................................................................................... 24

XGN1750-38 ........................................................................................................................................... 25

XGN1250-34 ........................................................................................................................................... 25

XGN2350-38 ........................................................................................................................................... 26

XGN2100-34 ........................................................................................................................................... 26

XGN3000-38 ........................................................................................................................................... 27

XGN2400-34 ........................................................................................................................................... 27

C

OMMISSIONING

  S

HEET

................................................................................................ 28

B

URNER

 S

ERVICE

 R

ECORD

............................................................................................. 29

N

OTES

...................................................................................................................... 30

Summary of Contents for XGN Series

Page 1: ...Page 1 XGN Handbook HANDBOOK Series XGN fully automatic burners Models XGN450 to XGN3000 Natural Gas...

Page 2: ...es 10 Combustion Chamber Conditions 10 PACKAGING FOR TRANSIT 10 ASSEMBLY 10 INSTALLATION 11 General 11 Fitting to the Appliance 11 Electrical 11 BURNER AIR CONTROLS 11 Air Diffuser 11 Air Pressure Swi...

Page 3: ...r Assembly 19 Air Diffuser and Gas Nozzle 20 Ignition Electrode 20 Replacement of Control Valve SKP2x 20 FAULT FINDING 20 MBC Error Codes 20 Incorrect Rotation of Burner Motor 21 Motor Fan Removal 21...

Page 4: ...XGN Handbook Page 4...

Page 5: ...h a condition should occur during commissioning or subsequent use of this product be it a fault of the burner the appliance or of any instrument machine or service in the proximity of the burner then...

Page 6: ...N1750 38 136 1014 265 255 165 287 104 227 429 583 394 289 2 265 305 XGN2100 34 118 957 265 223 165 287 104 227 385 583 394 269 2 230 305 XGN2350 38 171 1014 265 255 165 287 163 227 429 794 457 289 DN6...

Page 7: ...lame Tube 11 Diffuser Plate 6 Pilot Gas Tube Burner A B C D E F G Nozzle Side Ports Nozzle End Ports XGN450 23 71 96 135 155 146 168 19 8 x 8 0 8 x 4 0 XGN650 23 71 96 135 160 151 168 19 8 x 10 0 8 x...

Page 8: ...el Motor kW rpm Start Current A Full Load Current A Main Fuse A Cable Size mm2 XGN450 23 0 75 2800 8 0 2 0 10 1 0 XGN650 23 0 75 2800 8 0 2 0 10 1 0 XGN1000 25 1 1 2800 9 0 2 7 10 1 0 XGN1150 38 3 0 2...

Page 9: ...LUG HIGH LOW BURNER APPLICABLE TO ALL BURNERS MAKE CONNECTIONS AS APPROPRIATE AUXILLARY CONTACT MOTOR STARTER C ONNECTIONS TO THE 7 4 P IN P LUGS H L B URNER 7 PIN WIELAND B4 S3 T2 T1 N E L1 BURNER RU...

Page 10: ...aintenance To avoid any restriction in gas flow the size of this valve should not be less than that of the gas train FEATURES Flue and Chimney Requirements The flue and chimney must be constructed and...

Page 11: ...perating cycle Air flow failure at any stage after pre purge will result in a lockout failure during pre purge will result in four restarts before a lockout BURNER GAS CONTROLS Gas Nozzle The holes in...

Page 12: ...anual valve for a few seconds then close and secure the gas supply The manometer will detect any gas leakage and will prove that gas is not leaking past the gas train If no drop in pressure is recorde...

Page 13: ...show seven short lines the first flashing and is ready to accept the code The default pass code is 8904236 To enter the first number eight press the plus key eight times or the minus key twice 10 8 2...

Page 14: ...his number nine in this illustration press key nine times or the key once 10 9 1 Again the flashing line will drop to indicate it has been recorded Press key 2 to move to the next number zero the thir...

Page 15: ...2 together to access the display point Bu Wait until the display is steady Adjust the value to reflect the air damper angle at P1 Press keys 1 and 2 again to access the display point bo Wait until th...

Page 16: ...hed off a by controlling instruments of the appliance b manually c by power failure Upon restoration of power the burner will restart automatically and follow the normal sequence THE RWF40 MODULATION...

Page 17: ...ue found to be in error up down buttons At the last screen the PGM button will return the controller to the original operating display Parameter Display Hot Water Steam Proportional band Pb1 10 1 Deri...

Page 18: ...d When in the service mode the display will move to the next screen and finally back to the operating display with each press of the acknowledgement key MBC DISPLAYS Standby Display Operating Display...

Page 19: ...pply to the burner Combustion Air Fan Clean the blades regularly with a stiff brush Access is obtained through the burner top cover Care should be taken to avoid damaging the fan blades Check that the...

Page 20: ...Any modifications to the installation or component settings resulting from actions suggested below may require the re establishment of the various settings During the purges and firing cycles the MBC...

Page 21: ...e gas flow does not exceed 30 of the high flame gas rate as measured at the Gas Meter The gas valve s operate correctly Burner Fails to Establish Main Flame Check The gas butterfly is operating correc...

Page 22: ...SPARE PARTS For spare parts contact Nu way s Parts and Components Division at the address and telephone number listed on the rear cover of this handbook To avoid delays please provide the burner model...

Page 23: ...Page 23 XGN Handbook XGN450 23 XGN650 23...

Page 24: ...XGN Handbook Page 24 XGN1000 25 XGN1150 38...

Page 25: ...I n c h S t d G a s T r a i n G a s H e a d P r e s s u r e C o m b A i r H e a d P r e s s u r e 1 5 I n c h O p t i o n a l G a s T r a i n 2 I n c h S t d G a s T r a i n 2 5 x 2 I n c h O p t i o...

Page 26: ...n c h S t d G a s T r a i n G a s H e a d P r e s s u r e C o m b A i r H e a d P r e s s u r e 2 5 x 2 I n c h O p t i o n a l G a s T r a i n 2 I n c h O p t i o n a l G a s T r a i n 2 5 x 2 I n c...

Page 27: ...2 I n c h S t d G a s T r a i n G a s H e a d P r e s s u r e C o m b A ir H e a d P re s s u re 2 I n c h O p t i o n a l G a s T r a i n 2 5 x 2 I n c h O p t i o n a l G a s T r a i n 2 5 x 2 5 I n...

Page 28: ...l No Commissioning Date Spec n No Guarantee Expiry Date Gas Type Gas Pressure upstream of the main gas governor Standing mbar Running mbar Set point P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 Gas pressure at burne...

Page 29: ...9 XGN Handbook BURNER SERVICE RECORD The details below are to be completed by the Servicing Engineer This sheet to be completed and signed following each service adjustment Date Details Of Service Sig...

Page 30: ...XGN Handbook Page 30 NOTES...

Page 31: ...Page 31 XGN Handbook NOTES...

Page 32: ...Page 32 NU WAY LIMITED P O Box 1 Vines Lane Droitwich Worc WR9 8NA England Telephone 01905 794331 e mail info nu way co uk Fax Office 01905 794017 Parts Components 01905 795829 XGN Handbook PMD Revis...

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