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VENTED GAS FIREPLACE
503,831M
07/99
Supersedes 05/99
Table of Contents
Z
B-VENT Merit
Z
Merit
Series B-VENT Vented Gas Fireplace
Shipping and Packing List
Requirements
General
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location Selection
Installation Clearances
Framing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Venting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Piping
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Unit Start-up
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Spillage Test and Safety Switch
Adjustments
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Service
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Repair Parts List
Venting Kits & Available Components
Wiring Diagram - Millivolt Gas Valves
Wiring Diagram - Electronic Gas Valves
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Unit Dimensions
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Series
Litho USA
2
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Summary of Contents for Lennox B-VENT METIT Series

  • Page 1 ,167$//$7,21 £ ,16758&7,216 352'8&7 /,7(5$785(  /HQQR[ ,QGXVWULHV ,QF %9(17 0(5,7Z 'DOODV 7H[DV Series VENTED GAS FIREPLACE 503,831M 07/99 Supersedes 05/99 Litho USA Table of Contents B-VENT Merit Unit Dimensions ....Merit Series B-VENT Vented Gas Fireplace .
  • Page 2 B-VENT MeritZ Unit Dimensions - inches (mm) B3530 Models - 5 (127) DIA. FLUE OUTLET B4035, and B4540 Models - 6 (152) DIA. FLUE OUTLET   NOTE - Eyebrow used in louvered front model only. 723 9,(:     3-15/16x3-15/16 (100x100)
  • Page 3: Shipping And Packing List

    Replace- 127(   )RU LQVWDOODWLRQ RQ FRPEXVWLEOH IORRUV DSSOLDQFH ment glass panel must be ordered from Lennox and should only be installed by a qualified service techni- VKDOO QRW EH LQVWDOOHG GLUHFWO\ RQ FDUSHWLQJ WLOH RU RWKHU FRP cian.
  • Page 4: Location Selection

    2 - All parts removed for servicing should be replaced be- 9 - Appliance may be installed on a raised platform to fore operating the appliance. enhance its visual impact; however, clearances to combustible materials must still be maintained. 3 - These appliances have been designed to operate on natural gas or propane gas only.
  • Page 5: Installation

    0DQWHO &OHDUDQFHV )5$0,1* Framing should be constructed of 9HUWLFDO LQVWDOODWLRQ FOHDUDQFHV WR FRPEXVWLEOH PDQWHOV 2x4 or larger lumber. YDU\ DFFRUGLQJ WR WKH GHSWK RI WKH PDQWHO )LJXUH  GHWDLOV 127(  &RPEXVWLEOH ,QFKHV PP ZDOO ERDUG FDQ EH WKHVH UHTXLUHG FOHDUDQFHV 0DQWHOV FRQVWUXFWHG RI QRQ LQVWDOOHG IOXVK ZLWK FRPEXVWLEOH PDWHULDOV PD\ EH LQVWDOOHG DW DQ\ KHLJKW HGJHV RI DSSOLDQFH...
  • Page 6 B3530 LOG PLACEMENT Log Stamping Lennox Number Part Number Part Number 1910 19L65 19L64 1911 21L10 1912 21L11 Lennox Part Number for entire log set: 18L77 FIGURE 7 3DJH ...
  • Page 7 B4035 LOG PLACEMENT Log Stamping Lennox Number Part Number Part Number 1919 19L67 1918 19L66 1920 19L68 1921 19L70 1922 19L71 19L69 1923 Lennox Part Number for entire log set: 18L78 FIGURE 8 3DJH ...
  • Page 8 B4540 LOG PLACEMENT Log Stamping Lennox Number Part Number Part Number 1925 19L73 1924 19L72 1920 19L68 1921 19L70 19L71 1922 1923 19L69 19L74 1926 Lennox Part Number for entire log set: 18L79 FIGURE 9 3DJH ...
  • Page 9 3/$&(0(17 2) (0%(5 0$7(5,$/ 21 )5217 %851(5 6(3$5$7( 52&. :22/ ,172 3,(&(6 $%287 7+( 6,=( 2) $ 1,&.(/ .((3 7+( 3,(&(6 )/8))(' 83  127 0$77(' $1' 3/$&( $3352;,0$7(/< $6 6+2:1 ,1 7+,6 ),*85( 127(  722 0$1< (0%(56 21 7+( )5217 %851(5 :,// &$86( 3225 &20%867,21 ),*85(  8 - Millivolt Wiring (Millivolt Units) - 11 - Attach approved type-B vent to vent collar at top of...
  • Page 10: Gas Piping

    DUH DSSURYHG IRU XVH ZLWK WKHVH DSSOLDQFHV &RQVXOW ORFDO IMPORTANT FRGHV IRU JDV SLSLQJ SUDFWLFHV 1 - Lennox gas fireplaces are shipped standard for left $SSOLDQFH JDV YDOYHV FDQ EH GDPDJHG LI VXEMHFWHG or right side or bottom installation of gas piping. Sim-...
  • Page 11: Unit Start-Up

    4 - Open the bottom panel. Push in gas control knob Unit Start-up slightly and turn clockwise to OFF. NOTE - Knob cannot be turned from PILOT to OFF )25 <285 6$)(7< 5($' %()25( /,*+7,1* unless knob is pushed in slightly. Do not force. WARNING 5 - Wait five (5) minutes to clear out any gas.
  • Page 12 3/$&,1* ),5(3/$&( ,172 23(5$7,21 Spillage Test and Safety Switch (OHFWURQLF *DV 9DOYHV 63,//$*( 7(67 )LUHSODFHV HTXLSSHG ZLWK DQ LJQLWLRQ GHYLFH ZKLFK ZLOO DX $IWHU DSSOLDQFH LQVWDOODWLRQ SHUIRUP WKLV VSLOODJH WHVW WR WRPDWLFDOO\ OLJKW WKH EXUQHU 'R QRW WU\ WR OLJKW WKH EXUQHU YHULI\ WKDW SURSHU YHQWLQJ FRQGLWLRQV H[LVW E\ KDQG )ROORZ WKHVH LQVWUXFWLRQV H[DFWO\   3ODFH XQLW LQ LWV QRUPDOO\RSHUDWHG FRQGLWLRQ LI WKH...
  • Page 13 %/2&.(' )/8( 6$)(7< 6:,7&+ /2&$7,21 :KHQ LQVWDOOLQJ WKLV XQLW DW DQ HOHYDWLRQ DERYH  IHHW )URQW 9LHZ RI ILUHSODFH  PHWHUV  GHFUHDVH WKH LQSXW UDWH E\ FKDQJLQJ WKH H[ LVWLQJ EXUQHU RULILFH WR D VPDOOHU VL]H ,QSXW UDWH VKRXOG EH UHGXFHG  SHUFHQW IRU HDFK  IHHW  PHWHUV RI HOHYDWLRQ DERYH VHD OHYHO )RU DVVLVWDQFH LQ GHWHUPLQLQJ WKH SURSHU RULILFH VL]H FKHFN ZLWK WKH ORFDO JDV XWLOLW\ RU...
  • Page 14 %851(5 )/$0( $'-8670(17 2SWLRQDO )HDWXUH :$51,1* 7KH EXUQHU IODPH PD\ EH DGMXVWHG E\ WXUQLQJ WKH +,/2 6RPH VRDSV XVHG IRU OHDN GHWHFWLRQ DUH FRUURVLYH NQRE RQ WKH JDV YDOYH WR REWDLQ WKH UHTXLUHG KHDWLQJ RXW WR FHUWDLQ PHWDOV &DUHIXOO\ ULQVH SLSLQJ WKRURXJKO\ SXW DQG IODPH DSSHDUDQFH 6HH ILJXUH  RU  7KH EXUQ DIWHU OHDN WHVW KDV EHHQ FRPSOHWHG 'R QRW XVH HU IODPH VKRXOG EH LQVSHFWHG DW WKH EHJLQQLQJ RI HDFK...
  • Page 15: Repair Parts List

    7528%/(6+227,1* 0,//,92/7 6<67(06 352%/(0 3266,%/( &$86( 3266,%/( 5(0('< &KHFN JDV SUHVVXUH *DV VXSSO\ SUREOHP *DV VXSSO\ SUREOHP 0DNH VXUH JDV YDOYHV DUH RSHQ 3,/27 :,// 127 /,*+7 'HEULV LQ SLORW RULILFH &OHDQ SLORW DVVHPEO\ &KHFN SLORW IODPH $GMXVW LI QHFHVVDU\ &KHFN WKHUPRSLOH YROWDJH XVLQJ YROW PHWHU 3UHVV YDOYH NQRE DQG OLJKW SLORW 0HWHU VKRXOG UHDG D 'HIHFWLYH WKHUPRSLOH...
  • Page 16: Wiring Diagram - Millivolt Gas Valves

    Fireplace Kits And Available Components 7KH IROORZLQJ LV D OLVW RI DFFHVVRULHV DQG FRPSRQHQWV DSSURYHG IRU XVH ZLWK WKH JDV ILUHSODFH &DWDORJ &DWDORJ 'HVFULSWLRQ 'HVFULSWLRQ 1XPEHU 1XPEHU .  LQ %ULFNDGHG ,QWHULRU . &LUFXODWLQJ $LU )DQ .LW ). .  LQ %ULFNDGHG ,QWHULRU .  LQ *UDWH .LW ....
  • Page 17: Wiring Diagram - Electronic Gas Valves

    Wiring Diagram - Electronic Gas Valves )$1 6:,7&+ 6HH 1RWH  )$1 6HH 1RWH   9$& <(//2: :+,7( %52:1 1(875$/ *5((1 *5281' 25$1*( *$6 9$/9( 3,/27 %851(5 ,*1,7256(1625 :+,7( $66(0%/< 3,/27 6833/< %/8( *5281' -%2; (/(&7521,& 9 9 ,*1,7,21 &21752/ %2$5' :+,7(...

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