Heatilator SCKVN-B User manual

Heatilator • SCKVN-B Conversion Kit • 4016-124 Rev F • 11/07 1
Models:
SCKVN-B
Propane to Natural Gas
Conversion Kit
Installation
Instructions
This conversion kit has been tested for use with specific Heatilator gas appliances. Check with your local building code
agency before you begin installation to ensure compliance with local codes, including the need for permits and follow-up
inspections. If you encounter any problems regarding code approvals, or if you need clarification of any of the instructions
contained here, contact your Hearth & Home Technologies Inc. dealer. For the dealer nearest you, please visit www.
heatilator.com.
HEATILATOR® is a registered trademark of Hearth & Home Technologies Inc.
Note: An arrow (¨) found in the text signifies change in
content.
Sharp Edges
• Wear protective gloves and safety
glasses during installation.
CAUTION
A. Components
Description Part #
Burner Orifice See Table 1
Pilot Orifice .022 in. 29476
Variable Regulator 1.7 in. - 3.5 w.c. 230-1570
SCKVN-B/SCKVP-B Label 4016-129
Table 1
Burner Orifice
Model Size Part #
GDST60L GBST36L .115 26617
GDFL60L GBCR36L .115 26617
GDCR60L GBCL36L .115 26617
GDCL60L GBFL36L .115 26617
GDCH60L .115 26617
GNTC50L .093 16752
CD4236LR .104 4031-158
CD4842LR .109 4021-061
ND3630 NB3630 .083 4031-161
ND3933 NB3933 .089 (#43) 4031-160
ND4236 NB4236 .093 (#42) 4031-159
ND4842 NB4842 .104 (#37) 4031-158
NDV3630 NBV3630 .083 4021-435
NDV3933 NBV3933 .089 (#43) 582-843
NDV4236 NBV4236 .093 (#42) 582-842
NDV4842 NBV4842 .104 (#37) 582-837
Tools Required:
Phillips screwdriver
Straight screwdriver
Pliers
Non-corrosive leak-check solution
1/2, 5/8 & 7/16 wrench
Manometer
Note: Gas conversions should only be performed by a
qualified service person, and/or where required by state
and local codes, licensed installer/service technician. In
the Commonwealth of Massachusetts, installation must be
performed by a licensed plumber or gas fitter.
Note: This kit is for a one time conversion only. Discard
unused parts.

Heatilator • SCKVN-B Conversion Kit • 4016-124 Rev F • 11/07
2
Note: Remove all components blocking your access and
set aside.
A. Gas and Power Supply
• Locate the gas manual shutoff valve in the control area
in the bottom of the appliance. Turn the shutoff valve so
it is perpendicular to the gas line.
• If electricity has been brought to the appliance, shut off
all power by turning off the appropriate circuit breaker or
removing the fuse in the electrical panel.
1
1 Gas Conversion Instructions
Fire and/or Explosion Risk
• Shut off gas.
• Orifices must be replaced
WARNING
Failure to shut off the gas supply prior to disconnecting
gas supply could result in explosion of gas fumes.
Failure to replace the orifices could result in overheating
the gas appliance and possibly damaging your appliance
and your home.
Note: Inspect the valve plate gasket at this time and
replace if worn or damaged. Contact your distributor/dealer
customer services department for replacement parts.
B. Remove the Valve Assembly, Novus NDV &
NBV Series
• Remove the screen and glass frame assembly.
• Remove the two screws holding the hearth pan assembly.
See Figure 1.1
Figure 1.1 Loosen Hearth Pan Assembly
Figure 1.2 Move Hearth Pan Assembly
• Grasp the front of the hearth pan. Pick up the assembly
and pull it forward 1/2 in, being careful to not damage the
pilot. See Figure 1.2
• Once the hearth pan assembly clears the pilot and air
shutter bracket, the assembly can be removed from the
firebox. See Figure 1.3.
Figure 1.3 Remove Hearth Pan Assembly
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Heatilator • SCKVN-B Conversion Kit • 4016-124 Rev F • 11/07 3
C. Caliber CD Series and Caliber Designers
Valve Access
• Remove the control access panel so you can observe the
control area of your gas appliance.
• Remove the screen and glass frame assembly.
• Remove the Log Set (Designers)
- Remove two screws, one at each end of the grate.
- Pull the log/grate assembly up and off the burner.
• Remove the Log Set (CD Series)
- Lift the two top logs off the log set. See Figure 1.4.
- Remove the grate/log assembly by removing two
screws as shown in Figure 1.4. Lift and pull grate/log
assembly from front of firebox.
- Remove four screws securing the rear log (Figure 1.5).
Lift rear log and remove from firebox.
• Remove the main burner by removing four screws
(Figure 1.5), one at each corner. Slide the burner to the
left and lift out. Set aside.
• Designer burners will lift straight up or slide forward then
up.
Screws
Figure 1.4 Loosen Grate
Remove
Back Log
Remove
Back Log
Remove
Burner Pan
Figure 1.5 Remove Rear Log
Figure 1.6 Remove the Air Shutter Cover
D. Burner Orifice - Caliber CD Series & Design-
ers
Use Table 1 and the existing rating label (located in the valve
compartment) to determine the correct orifice for your appli-
ance.
• Caliber CD Series: Rremove the two screws so air shutter
cover can be removed. See Figure 1.6.
• Caliber & Designers: Using a 1/2 in. wrench, remove the
threaded orifice (see Figure 1.7), discard and replace with
the appropriate orifice. Make sure the orifice is screwed on
completely. Failure to have the orifice completely screwed
on will result in the valve plate assembly not fitting together
properly.
• Replace air shutter cover (CD Series).
Figure 1.7 Remove the Burner Orifice
Figure 1.8 Loosen the Retaining Nut - Caliber
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Heatilator • SCKVN-B Conversion Kit • 4016-124 Rev F • 11/07
4
F. High Altitude Installation
U.L. Listed gas appliances are tested and approved without
requiring changes for elevations from 0 to 2000 feet in the
U.S.A. and Canada.
When installing this appliance at an elevation above 2000 ft,
it may be necessary to decrease the input rating by chang-
ing the existing burner orifice to a smaller size. Input rate
should be reduced by 4% for each 1000 ft above a 2000 ft
elevation in the U.S.A., or 10% for elevations between 2000
and 4500 ft in Canada. If the heating value of the gas has
been reduced, these rules do not apply. To identify the prop-
er orifice size, check with the local gas utility.
If installing this appliance at an elevation above 4500 ft (in
Canada), check with local authorities.
G. Pilot Orifice
• Secure the bracket of the pilot assembly and loosen the
nut with a 7/16 in. wrench. See Figure 1.12.
• Loosen the nut until the pilot hood becomes loose from
the pilot assembly.
• The orifice is inside the base of the pilot assembly. See
Figure 1.13.
• Discard the existing orifice and replace with the pilot orifice
from this kit.
Figure 1.12 Loosen the Pilot Hood (CD & Designer Series)
Figure 1.13 Pilot Orifice (CD and Designer Series)
E. Burner Orifices - Novus NDV & NBV
• Remove the air shutter door by lifting it off the shutter
bracket. See Figure 1.9.
• Remove the two screws holding the shutter bracket
and remove the bracket to expose the orifice. See
Figure 1.10.
• Use Table 2.1 and the existing rating label (located in
the control area) to determine the correct orifice for your
appliance.
• Use a 3/8 in. wrench to loosen, remove and discard the
existing orifice. See Figure 1.11.
• Replace the existing orifice with the appropriate natural
gas orifice and tighten.
• Reinstall the air shutter assembly.
• All connections must be tightened and checked for leaks
with a commercially available, non-corrosive leak check
solution. Be sure to rinse off the solution when done leak
testing.
Figure 1.9 Removing Air Shutter Door
Figure 1.10 Removing the Shutter Bracket
Figure 1.11 Loosening the Orifice
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Heatilator • SCKVN-B Conversion Kit • 4016-124 Rev F • 11/07 5
H. Caliber CD & Designer Series, Reinstallation
Rear Holes
Front Holes
Figure 1.14 Reinstall Rear Log Location
• Replace screen and glass frame assembly.
• Replace control access panel.
• Refer to Section 1.C.
• Move the hearth pan back until the tabs in the hearth pan
have caught on the lip of the false back and the burner neck
has slid over the air shutter bracket.
• Replace the screws holding the hearth pan to the firebox
bottom.
• Restore electricity to the appliance.
• All connections must be tightened and checked for leaks
with a commercially available, non-corrosive leak check
solution. Be sure to rinse off the solution when done leak
testing.
I. Reinstall Hearth Pan Assembly - NDV & NBV Series
Figure 1.15 Replacing Hearth Pan, Step 1 Figure 1.16 Replacing Hearth Pan, Step 2
• Slowly move the assembly towards the back of the fireplace
and gradually move the front of the hearth pan down at the
same time. See Figure 1.16.
¨
• Replace the burner assembly.
• (CD Series only) Replace the log set. The rear log must
be installed using the back set of holes are used when
converting to propane. See Figure 1.14.
• Grasp the hearth pan assembly from the front. Place the
hearth pan over the pilot assembly while resting the back
of the hearth pan on the lip extending from the false back.
See Figure 1.15.

Heatilator • SCKVN-B Conversion Kit • 4016-124 Rev F • 11/07
6
2
2 After the Conversion
A. Adjustable Regulator
• To gain access to the valve regulator, open the control
access cover or panel.
• Follow the instructions steps 1-3 that are included with
the regulator. Save the label included in the kit for later
attachment to the appliance. See Figures 2.1 and 2.2.
B. Leak Check
• Turn on the gas supply to the appliance. All connections
must be tightened and checked for leaks with a
commercially available, noncorrosive leak check solution.
Be sure to rinse off the solution when done leak testing.
• Turn the gas control knob to the “PILOT” position. Push
the knob in all the way and hold. At the same time, push
in the red ignition button repeatedly until the pilot lights.
NEVER hold in the gas control knob for more than ten
seconds if the pilot does not light.
• Once the pilot lights, continue to hold in the control knob
for fifteen seconds. Release the gas control knob and it
will pop back up. Test for leaks at the pilot assembly.
• Turn the gas control knob to the “ON” position and turn
the switch on. Check for leaks around the valve and the
burner orifice with a commercially available, noncorrosive
leak check solution. Be sure to rinse off the solution when
done leak testing.
C. Pressure Check
The gas input, inlet pressure and manifold pressure
must be as indicated on the rating label located on the
bottom pan, near the valve.
• Verify that the valve gas control knob is set at the “PILOT”
position. This is important to prevent accidental gas leaks
during the pressure test.
• Using a small flat head screwdriver, completely loosen
the screw inside the pressure tap that you want to check.
The screw does not need to be removed.
• Place a 3/8 in. diameter tube from the manometer over
the pressure tap.
• Turn the gas knob to “ON” and the burner ON/OFF switch
to “ON”. The burner needs to be on to check the outlet
(manifold) pressure.
• Turn the burner switch to “OFF” and the valve knob to
“PILOT”. Disconnect the tubing and tighten the screw in
the pressure tap.
D. Verify Operation
• Turn the gas knob to “ON” and the switch to “OFF”.
• Verify that the burner lights.
• Turn the control knob clockwise and counterclockwise to
confirm the flame adjusts up and down.
• Let the appliance run for fifteen minutes, allowing the flame
to reach its height and color.
Figure 2.1 Removing Regulator
Figure 2.2 Replacing Regulator

Heatilator • SCKVN-B Conversion Kit • 4016-124 Rev F • 11/07 7
E. Check the Flame Patterns
Look at the flame of the burner, making sure the flames are
steady, not lifting or floating. The flame color should be blue
with yellow tips. The thermopile tip (standing pilot) should be
covered in flame. See Figure 2.3.
Thermocouple
Ignitor
Pilot Hood
Thermopile
Flame covers top 1/2 in. of the
thermopile and thermocouple.
Figure 2.3 Pilot Flame Pattern
G. Air Shutter Adjustment (CD & Designer Series)
The air shutter adjusts the amount of air that mixes with
the gas as it enters the burner pan.
• Locate the wing nut underneath the firebox bottom.
See Figure 2.5. To close the air shutter, turn the wing
nut clockwise. To open the air shutter, turn the wing nut
counterclockwise. The air shutter is used to fine-tune
the flame as necessary for differences in altitude and
vent configuration. The air shutter is shipped fully closed
with natural gas appliances and fully open with LP
appliances.
Figure 2.5 Air Shutter Adjustment (Caliber & Designer Series)
H. Affix the Labels
• Attach the label included with the regulator kit on either
the valve or visibly adjacent to the valve. This label reads:
“This control has been converted to natural gas.”
• Attach the installer conversion label included with this
kit in a visible location on or near the appliance after the
appropriate information has been added to the label.
I. Reconnect Electric Supply
• Restore power by turning on the approriate circuit breaker
or putting a fuse back into the electrical panel.
• Allow the appliance to operate 15-20 minutes. This will
give the flame time to reach its height and color before
making adjustments to the air shutter. As the air shutter
is closed, the flame should be taller and darker.
• The appliance may produce a noise, caused from metal
expansion and contraction as it heats up and cools down.
This noise is similar to one that a furnace or heat duct may
produce and does not affect the operation or longevity of
the appliance.
OpenClose
Figure 2.4 Air Shutter - Novus NDV & NBV Series
F. Air Shutter Adjustment - Novus NDV & NBV
Series
• Locate the thumbscrew on the bottom of the valve
assembly. See Figure 2.4.
• Turn the thumbscrew to open or close the air shutter.
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