kozy heat NCK-C39-D, Quick Start Manual, Page: 3 / 8

#NCK-C39-D
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HUSSONG MFG. CO., INC. KOZY HEAT FIREPLACES
EN
Conversion Kit Components
(1) Gas Conversion Label
(1) 50% Turndown Stepper Motor*
(1) Gas Label
(1) Pilot Injector - Natural Gas: #.018NG
(2) Burner Orifices - Natural Gas: #44 FRONT; #45 BACK
*Not included in the appliance parts package. Contact your local dealer for more
information.
High Altitude Conversions
For high altitude installations in the United States, refer to the
American Gas Association guidelines for the gas designed appliances
derating method. For elevations above 2,000’ (610m), input ratings are
to be reduced by 4% for each 1,000’ (305m) above sea level.
When the appliance is installed at elevations above 4,500’ (1,372m),
the certified high altitude rating shall be reduced at the rate of 4% for
each additional 1,000’ (305m). Refer also to CSA-B149.1 Natural Gas
and Propane Installation Code, local authorities, or codes which have
jurisdiction in your area regarding the derate guidelines.
CAUTION: The gas supply shall be shut off prior to disconnecting the
electrical power, before proceeding with the conversion.
A. Prepare the Fireplace
Step 1: Remove the safety barrier and glass frame assembly.
Step 2: Remove log set, panel set (if installed), and ember panel.
Step 3: Remove the front burner and back burner tube from firebox.
Step 4: Remove the back log plate and burner heat shield.
Refer to the installation manual for more information.
B. Replace Burner Orifices
Step 1: Remove the existing front and back orifice caps. See FIGURE 1.
Step 2: Replace with the orifice caps included with this kit. Tighten cap
securely. The sizes are stamped on the orifices.
Table 1, Burner Orifice Size at Elevations 0-4,500’ (1,372m)
Fuel Front Orifice Size Back Orifice Size
Natural Gas #44 (DMS) #45 (DMS)
C. Convert Pilot Assembly
Step 1: Remove (2) screws securing the pilot assembly to the pilot
bracket.
Step 2: Place a
7/16
” wrench on the upper fitting and 1/2” wrench
on the lower fitting, and loosen the pilot hood by turning
counterclockwise.
Step 3: Remove the pilot hood and existing pilot orifice inside the
lower fitting.
Step 4: Install new pilot orifice included with the kit (number stamped
on pilot orifices) into the lower fitting.
Step 5: Reattach pilot hood and tighten using
7/16
” wrench on the
upper fitting and 1/2” wrench on the lower fitting. Fitting should
be snug. DO NOT OVER-TIGHTEN!
Step 6: Verify the pilot hood is positioned as shown in FIGURE 2 . Finally
alignment of flame sensor and hood outlet is critical for proper
ignition.
Step 7: Attach pilot assembly to pilot bracket with screws previously
removed.
Flame sensor
Hood outlet
Remove existing
pilot orifice and
replace with one
included in kit
Upper fitting
Pilot bracket
Lower fitting
Pilot assembly
Front burner orifice
Back burner orifice
FIGURE 1, Location of Burner Orifices
FIGURE 2, Converted Pilot and Pilot Injectors