HEARTH PRODUCTS
KITS AND ACCESSORIES
775,238M
Rev. A, 12/2007
INSTALLATION INSTRUCTIONS FOR CONVERTING FROM PROPANE GAS (LP) TO
NATURAL GAS (NG). FOR USE WITH THE RAVENNA™ DIRECT VENT GAS FIREPLACE INSERTS
KIT CONTENTS (See Figure 1):
1 ea. Robertshaw NG Regulator Kit (A)
1 ea. 1/8” NG main burner orifice (40,000 BTU’s) (B)
1 ea. #36 NG main burner orifice (33,000 BTU’s) (C)
1 ea. RDV 33 Sticker
1 ea. Instruction Sheet
RAVENNA™ GAS CONVERSION INSTRUCTIONS LP TO NG
CAT. NO. H5434, MODEL RDV-CK-LP TO NG
AVERTISSEMENT
Cet équipement de conversion sera installé par une
agence qualifiée de service conformément aux instructions du fabricant et toutes exigences et codes applicables de l'autorisés avoir la juridiction. Si l'information
TOOLS NEEDED (See Figure 2):
dans cette instruction n'est pas suivie exactement, un
feu, explosion ou production de protoxyde de carbone
5/32” Allen Wrench Or T-Handle Wrench
Phillips Screwdriver
1/2” Open End Wrench
7/16” Open End Wrench
peut résulter le dommages causer de propriété, perte
ou blessure personnelle de vie. L'agence qualifiée de
service est esponsable de l'installation propre de cet
équipment. L'installation n'est pas propre et compléte
jusqu'à l'opération de l'appareil converti est chéque
Figure 1 - Kit Contents
B
C
suivant les critères établis dans les instructions de
propriétaire provisionnées avec l'équipement.
A
IMPORTANT CANADA
Figure 2 - Tools Needed
Fig. 2
WARNING
This conversion kit shall be installed by a qualified
service agency in accordance with the manufacturer's
instructions and all applicable codes and requirements
of the authority having jurisdiction. If the information
in these instructions is not followed exactly, a fire,
explosion or production of carbon monoxide may result
causing property damage, personal injury or loss of
life. The qualified service agency performing this
installation is responsible for the proper installation of
this kit and assumes responsibility for this conversion.
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.
The conversion shall be carried out in accordance with
the requirements of the provincial authorities having
jurisdiction and in accordance with the requirements
of the CAN/CSA B149.1 Installation code.
IMPORTANT LE CANADA SEULEMENT
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 .
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
deration information sticker must be filled out by the
installer and adhered to the appliance at the time
of the conversion. Contact your local gas supplier
for deration requirements for your area.
1
READ ALL THE STEPS BEFORE STARTING THE CONVERSION.
INSTALLER NOTICE: THESE INSTRUCTIONS MUST BE LEFT WITH
THE APPLIANCE.
This kit contains components required to convert this appliance
from using Propane Gas to using Natural Gas as the only fuel.
All of these components must be replaced in order for the unit to
operate safely on Natural Gas.
When installing gas components use pipe joint compound or
Teflon tape on all pipe fittings before installing (ensure propane
resistant compounds are used, do not use pipe joint compounds
on flare fittings).
INSTALLATION INSTRUCTIONS
Step 1. TURN OFF THE GAS SUPPLY TO THE APPLIANCE.
Step 2. Using a phillips screwdriver, remove and discard the two pressure
regulator mounting screws (see Figure 3). Remove the pressure
regulator and rubber gasket. Discard all removed components.
Install the new regulator. Ensure the rubber gasket on the back
of the pressure regulator is properly positioned when installing
the new pressure regulator using the new screws supplied with
this kit. Locate the label provided in the regulator kit. Write in
the required information, then affix it to the valve.
Gas Valve
(located in control compartment below firebox)
Air shutter
screw
Figure 4A
Burner
Log rack and burner screws
Lift Out Burner
Regulator
Remove These
Screws
Fill out & affix label from
regulator kit to valve
Figure 3 - Replace Regulator on Valve
Step 3. Remove the glass door by releasing the two upper spring latches,
and lifting up, out of the lower latches (see Page 18 of the Instal-
lation and Operation Manual). Carefully remove the logs. Exercise
care so as not to break the logs. Set aside in a safe place.
Step 4. Remove log rack by first removing the two 5/32” allen head
screws. Note: Screws secure log rack and front of burner. After
screws are removed you can pull the lock rack straight out making sure it’s held high enough to clear over the pilot assembly.
See Figure 4A.
Step 5. Remove burner by shifting it to the right until it releases from
air shutter. Air shutter may need to be shifted to the left before
burner will release. Remove 5/32” air shutter screw before moving air shutter. See Figures 4A and 4B.
Burner
Figure 4B
Step 6. Using a 7/16” open-end wrench, loosen the stem of pilot hood
assembly with a 1/4 turn counterclockwise (see Figures 5 & 6).
Pilot Hood
Pilot Stem
7/16” End Wrench
Figure 5
2
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE NOT TO SCALE.
Step 7. Slide the pilot orifice into the NG position by pushing it toward
the opposite side of the pilot stem. The top side of the orifice
slider should appear silver and read NG. The gas supply is now
lined up with the NG orifice. See Figure 6.
Orifice Slider
Burner Orifice
1/2” End Wrench
Figure 7 - Replace Burner Orifice
Step 10. Install burner and log rack, and make sure air shutter is 1/8”
open.
Figure 6 - Adjust Orifice Slider to the NG Position
Step 8.
Tighten the pilot stem by turning it clockwise, making sure the
orifice slider stays pushed into the NG position.
STEP 9.
40,000 BTU
Using a 1/2” open-end wrench, remove burner orifice. Replace
with 1/8” NG orifice that is supplied in this kit. Make sure to use
pipe sealing compound on threads of new orifice (see Figure 7).
IMPORTANT NOTE: When this appliance is installed with the 1/8”
orifice (40,000 BTU’s), increased mantel clearances are required.
See Page 8 of the Installation and Operation Manual.
33,000 BTU
Using a 1/2” open-end wrench, remove burner orifice. Replace
with #36 NG orifice that is supplied in this kit. Make sure to use
pipe sealing compound on threads of new orifice (see Figure 7).
Air Venturi Open
Air Shutter
Figure 8 - Adjust Air Shutter
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE NOT TO SCALE.
3
Step 11.
33,000 BTU
If you are using the
(provided) in place on the safety label as shown in Figure 9.
The safety label is located in the control compartment.
40,000 BTU (standard from factory)
If you are using the (standard) 1/8” orifice, the label will read
RDV 40 on the safety label as shown in Figure 10. The safety
label is located in the control compartment.
Figure 9 - RDV 33 If #36 Orifice is Used
#36 orifice, adhere the RDV 33 sticker
RDV 33 Sticker
Safety Label
Manifold Gas Supply Pressure
Fuel # Low High
Natural
Gas
(Lo) 1.7" WC/po. C.E
(0.42 kPa)
(Hi) 3.5" WC/po. C.E
(0.87 kPa)
Step 14. Reinstall the the log set and glass door assembly. See Pages
10 and 11 (Log Set Installation) and Page 18 (Door Assembly
Installation) in the Installation and Operation Manual.
Step 15. Light the appliance per the lighting instructions label on appliance
(located below glass door) or lighting instructions on Page 13
in the Installation and Operation Manual. Inspect for proper
pilot and burner flame appearances. See Figures 11 and 12
or refer to Pages 15 and 17 of the Installation and Operation
Manual.
RDV 40
Safety Label
Figure 10 - RDV 40 If 1/8” Orifice is Used
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).
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.
Inlet Gas Supply Pressure
Fuel # Minimum Maximum Desired
Nat.
Gas
5" WC/po. C.E
(1.24 kPa)
10.5" WC/po. C.E
(2.61 kPa)
7" WC/po. C.E
(1.74 kPa)
Figure 11 - Proper Pilot Flame Appearance
Soot at
Flame Tip
Dark Orange
Flame
No Blue Flame
Center
IMPROPERLY
BURNING FLAME
Soot above
Flame Tip
Ports on Pan
Burner Assembly
PROPERLY
BURNING FLAME
Figure 12 - Burner Flame Appearance
No Soot at
Flame Tip
Semi-Transparent
Yellow Flame
Blue Flame
Center
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. © Lennox Hearth Products 2007
P/N 775,238M REV. A 12/2007
4
1110 West Taft Avenue • Orange, CA 92865
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