Lennox Hearth Indoor Fireplace DBv CK LP TO NG User Manual

HEARTH PRODUCTS  
KITS AND ACCESSORIES  
775,239M  
Rev. a, 08/2008  
DESIGNER™ GaS CONvERSION INSTRuCTIONS LP TO NG  
CaT. NO. H5428, MODEL DBv-CK-LP TO NG  
INSTaLLaTION INSTRuCTIONS FOR CONvERTING FROM PROPaNE GaS (LP) TO  
NaTuRaL GaS (NG). FOR uSE wITH THE DESIGNER™ DIRECT vENT GaS FIREPLaCE INSERTS  
KIT CONTENTS (See Figure 1):  
avERTISSEMENT  
1 ea. Robertshaw NG Regulator Kit (A)  
1 ea. #37 NG main burner orifice (30,000 BTU’s) (B)  
1 ea. Nova SIT NG pilot orifice (C)  
1 ea. Instruction Sheet  
Cet équipement de conversion sera installé par une  
agencequalifiéedeserviceconformémentauxinstruc-  
tionsdufabricantettoutesexigencesetcodesapplica-  
blesdel'autorisésavoirlajuridiction. Sil'information  
danscetteinstructionn'estpassuivieexactement,un  
feu,explosionouproductiondeprotoxydedecarbone  
peutrésulterledommagescauserdepropriété,perte  
oublessurepersonnelledevie. L'agencequalifiéede  
service est esponsable de l'installation propre de cet  
équipment. L'installationn'estpaspropreetcompléte  
jusqu'à l'opération de l'appareil converti est chéque  
suivant les critères établis dans les instructions de  
propriétaire provisionnées avec l'équipement.  
TOOLS NEEDED (See Figure 2):  
5/32” Allen Wrench Or T-Handle Wrench  
#2 Phillips Screwdriver  
1/2” Open End Wrench  
Figure 1 - Kit Contents  
B
A
IMPORTaNT CaNaDa  
Theconversionshallbecarriedoutinaccordancewith  
therequirementsoftheprovincialauthoritieshaving  
jurisdictionandinaccordancewiththerequirements  
of the CaN/CSa B149.1 Installation code.  
C
IMPORTaNT LE CaNaDa SEuLEMENT  
Figure 2 - Tools Needed  
La conversion devra être effectuée conformément  
aux recommandations des autorités provinciales  
ayant juridiction et conformément aux exigences  
du code d'installation CaN/CSa B149.1 .  
waRNING  
This conversion kit shall be installed by a qualified  
serviceagencyinaccordancewiththemanufacturer's  
instructionsandallapplicablecodesandrequirements  
oftheauthorityhavingjurisdiction. Iftheinformation  
in these instructions is not followed exactly, a fire,  
explosionorproductionofcarbonmonoxidemayresult  
causing property damage, personal injury or loss of  
life. The qualified service agency performing this  
installationisresponsiblefortheproperinstallationof  
thiskitandassumesresponsibilityforthisconversion.  
The installation is not proper and complete until the  
operation of the converted appliance is checked as  
specified in the manufacturers instructions supplied  
with the kit.  
IMPORTaNT  
The burner orifices provided in this kit are only for  
use at elevations of 0 to 2,000 feet (610 M) in the  
uSa and 0 to 4,500 feet (0-1372 M) in Canada. at  
higher elevations the BTu input must be de-rated  
by 4% for every 1,000 feet (305 M) to maintain  
the proper ratio of gas to air. If the installer must  
convert the unit to adjust for varying altitudes, a  
derationinformationstickermustbelledoutbythe  
installer and adhered to the appliance at the time  
of the conversion. Contact your local gas supplier  
for deration requirements for your area.  
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Step 6.To remove burner, unscrew the 5/32” allen head screw, securing  
the right end of the burner. See Figure 8.  
Step 9. Firmly pull the pilot hood straight up and off to access the hexed  
pilot orifice (see Figures 11 and 13). Use a 5/32” allen head  
wrench to unscrew the pilot orifice and lift it out (see Figures  
12 and 13). Replace with the new NG pilot orifice provided. Re-  
install the pilot hood. Note: The raised part of the pilot bottom  
lines up with the notch in the pilot hood (see Figure 13).  
Step 7.Next, push the air shutter control lever in until it stops. See  
Figure 9.  
Step 8.Slide burner to the right until it comes off the burner orifice. Lift  
the right end of burner until it releases from the copper rod. See  
Figure 10.  
Remove 5/32”  
allen head screw,  
Pilot Hood  
Figure 11 - Pull Off Pilot Hood  
Figure 8 - Remove Screw From Burner  
use 5/32” allen wrench  
to remove pilot orifice  
Push air shutter lever  
in until it stops.  
Figure 12 - Remove Pilot Orifice  
SIT Millivolt Pilot  
assembly Shown  
Figure 9 - Push In Shutter Lever  
Pilot  
Hood  
Pilot  
Burner Tube assembly  
Orifice  
Burner Orifice  
This raised part of  
the pilot bottom  
must line up with  
the notch in the  
pilot hood.  
Figure 13  
Figure 10 - Remove Burner  
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE NOT TO SCALE.  
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Step10.Using1/2openendwrench,removetheLPburnerorifice. Install  
the new NG orifice. Make sure to use pipe sealing compound on  
threads of the new orifice (see Figure 14).  
Inlet Gas Supply Pressure  
Fuel #  
Minimum  
Maximum  
Desired  
Nat.  
Gas  
5" wC/po. C.E  
(1.24 kPa)  
10.5" wC/po. C.E  
7" wC/po. C.E  
(1.74 kPa)  
(2.61 kPa)  
Manifold Gas Supply Pressure  
Fuel #  
Low  
High  
1/2” End wrench  
Natural  
Gas  
(Lo) 1.7" wC/po. C.E  
(Hi) 3.5" wC/po. C.E  
(0.42 kPa)  
(0.87 kPa)  
Step 14.Reinstall the burner, log set support, log set and glass door  
assembly. See Pages 9 and 10 (Log Set Installation) and Page  
19(DoorAssemblyInstallation)intheInstallationandOperation  
Manual.  
Burner Orifice  
Step 15.Lighttheapplianceperthelightinginstructionslabelonappliance  
(located below glass door) or lighting instructions on Page 14  
intheInstallationandOperationManual. Inspectforproperpilot  
and burner flame appearances. See Flame Color and Behavior  
on Page 15 and Inspect The Pilot System For Proper Flame on  
Page 16 in the Installation and Operation Manual. Also see  
Figures 16 and 17 on this page.  
Figure 14 - Replace Burner Orifice  
Step 11.Install burner, and make sure air shutter is 1/8” open (see in-  
structionsonPage13oftheInstallationandOperationManual).  
Afterstep15, withtheappliancelitandfullywarmedup, evaluate  
the burner flame appearance and re-adjust air shutter for proper  
flame appearance, if necessary.  
Figure 16 - Proper Pilot Flame Appearance  
air Shutter Lever  
Soot at  
Flame Tip  
Soot above  
Flame Tip  
No Soot at  
Flame Tip  
Figure 15 - Adjust Air Shutter  
Dark Orange  
Semi-Transparent  
Flame  
Ports on Pan  
Burner assembly  
Yellow Flame  
Step 12. Turn on gas supply and test for gas leaks using a gas leak test  
solution (see Test Procedure on Page 12 of the Installation and  
Operation Manual).  
No Blue Flame  
Center  
Blue Flame  
Center  
PROPERLY  
BuRNING FLaME  
IMPROPERLY  
BuRNING FLaME  
Step 13.Using a manometer, test the inlet and manifold gas pressure  
per instructions in the Installation and Operation Manual (Page  
12) and as shown in the following 2 tables.  
Figure 17 - Burner Flame Appearance  
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE NOT TO SCALE.  
Lennox Hearth Products reserves the right to make changes at any time, without notice, in  
design, materials, specifications, prices and also to discontinue colors, styles and products.  
Consult your local distributor for fireplace code information.  
Printed in u.S.a. © 2008 Lennox Hearth Products  
1110 west Taft avenue • Orange, Ca 92865  
P/N 775,239M REv. a 08/2008  
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