HEARTH PRODUCTS
KITS AND ACCESSORIES
775,235M
rev. C, 03/2008
EpIC™ GaS CONvErSION INSTruCTIONS Lp TO NG
CaT. NO. 75355, MODEL EpIC-CK-Lp TO NG
INSTaLLaTION INSTruCTIONS FOr CONvErTING FrOM prOpaNE GaS (Lp) TO
NaTuraL GaS (NG). FOr uSE wITh ThE EpIC DIrECT vENT GaS STOvE
KIT CONTENTS (See Figure 1):
1 ea. Nova SIT NG Regulator Kit (A)
avErTISSEMENT
1 ea. #31 NG main burner orifice (40,000 BTU’s) (B)
1 ea. #36 NG main burner orifice (33,000 BTU’s) (C)
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.
1 ea. Sticker “EPIC33” if NG orifice was #36
1 ea. Instruction Sheet
TOOLS NEEDED (See Figure 2):
5/32” Allen Wrench Or T-Handle Wrench
1/8” Allen Wrench Or T-Handle Wrench
Torx Bit (T20 with 1/4” shank and center hole)
1/2” Open End Wrench
7/16” Open End Wrench
Figure 1 - Kit Contents
B
C
A
IMpOrTaNT CaNaDa
Theconversionshallbecarriedoutinaccordancewith
therequirementsoftheprovincialauthoritieshaving
jurisdictionandinaccordancewiththerequirements
of the CaN/CSa B149.1 Installation code.
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
derationinformationstickermustbefilledoutbythe
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 7.Before removing the burner pan slide the air shutter control
lever all the way to the right to the open position (see Figure
7). To remove the burner pan lift up on the left side, then slide
the burner to the left and lift out (see Figure 8).
pilot hood
Turn stem of
pilot hood as-
sembly coun-
ter-clockwise
to loosen.
Open the air
Shutter Control
pilot hood
when hood
is positioned
as shown it is
in the loose
position.
Figure 7
Figure 10
Step11.ConverttheorificetoNGbypushingtheorificeslidertotheright.The
top side of the orifice slider will be labeled NG. See Figure 11.
Slide burner left, then lift out
Burner pan
Figure 8
Orifice Slider
Step 8.Movetheairshutteroffoftheorifice.Usinga1/2”openendwrench,
push orifice slider to the right
Figure 11
remove the orifice by turning counterclockwise. See Figure 9.
Step12.Retighten the pilot orifice with 7/16” open end wrench (see Figure
10). Ensure that the orifice slider stays in the NG position while
tightening (see Figure 11).
Step13.Reinstall the burner, right side first, making sure that the burner
neck is seated in the air shutter (see Figure 12).
air Shutter
Orifice
air
shutter
Figure 9
Burner
Neck
Step 9.Using a 1/2” end wrench, replace the LP orifice with the NG main
burner orifice included in this kit (#31 for 40,000 BTU or #36 for
33,000 BTU). See Figure 9.
Figure 12
Step 10.Using a 7/16” open-end wrench, loosen the stem of pilot hood
assembly with a 1/4 turn counterclockwise (see Figure 10).
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE NOT TO SCALE.
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Step 14.Before you secure the burner with screws, double check that
the orifice is positioned into the burner neck by feeling around
the back of the burner (see Figure 13). Then, lower the burner
so it sits flush on the burner supports and replace the 2 screws
removed in step 6 (see Figure 13).
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
Natural
Gas
(Lo) 1.7" wC/po. C.E
(hi) 3.5" wC/po. C.E
(0.42 kpa)
(0.87 kpa)
Burner
Step 14.Reinstall the log set and glass door assembly. See Page 12
(LogSetInstallation)andPage 25(DoorAssemblyInstallation)
in the Installation and Operation Manual.
Step 15.Lighttheapplianceperthelightinginstructionslabelonappliance
(located inside left door) or lighting instructions on Page 19 of
the Installation and Operation Manual. Inspect for proper pilot
and burner flame appearances (see Figures 15 and 16 below).
AlsoseeFlameColorandBehaviorandInspectThePilotSystem
For Proper Flame on Page 20 of the Installation and Operation
Manual.
reach behind burner and feel orifice to
ensure it is centered in the burner neck
Lower burner flush and reinstall
screws (indicated by arrows)
Burner
Figure 13
Step 15.Remove the sticker covering the model on the label so that it
reads “Epic NG40” if orifice #31 is installed. Use the sticker
“Epic NG33” to cover “Epic NG40” on the label if orifice #36
is installed. The label is located on the inside of the left hand
door (see Figure 14).
Figure 15 - Proper Pilot Flame Appearance
Safety Label
Soot at
Flame Tip
Soot above
Flame Tip
No Soot at
Flame Tip
Dark Orange
Semi-Transparent
Flame
ports on pan
Burner assembly
yellow Flame
No Blue Flame
Center
Blue Flame
Center
Figure 14
prOpErLy
BurNING FLaME
IMprOpErLy
BurNING FLaME
Step 16. Turn on gas supply and test for gas leaks using a gas leak test
solution (see Test Procedure on Page 18 of the Installation and
Operation Manual).
Figure 16 - Burner Flame Appearance
Step 17.Using a manometer, test the inlet and manifold gas pressure
per instructions in the Installation and Operation Manual (Page
18) and as shown in the following 2 tables.
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE NOT TO SCALE.
Lennox 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. © 2007 Lennox hearth products
p/N 775,235M rEv. C 03/2008
1110 west Taft avenue • Orange, Ca 92865
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