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NVC Series B-Vent
20000194
Test Chimney Draw
A "Chimney Draw" test must be made before the
installation is complete.
1. Close all doors and windows in the home and start
exhaust fans in the kitchen and bathroom.
2. Light unit and operate for 5 minutes.
3. Hold an ignited match, cigarette, or smoke match in
front of the unit. Refer to Figure 17 for location of the
draft hood opening.
4. Check to make sure smoke from the match, cigarette
or smoke match is drawn into the fireplace. If it is
not, turn the unit off and check for causes creating
the lack of adequate draft.
Do not operate the unit until lack of
adequate draft has been determined and
rectified.
Fig. 16 Approximate flame heights for each model.
FP393
NVC36
NVC43
NVC39
Inspecting the Venting System
This appliance venting system is designed and con-
structed to develop a positive flow adequate to remove
flue gases to the outside atmosphere.
Any foreign objects in the venting system, except those
designed specifically for the venting system, may cause
spillage of flue gases.
To inspect the venting system, make sure the main gas
valve is off. Remove the window frame assembly (Refer
to Page 10). Using a flashlight, check the area above
the baffle in the combustion dome. Clean if necessary.
Test for Draft at This Location
FP1197
Fig. 17 Draft test location.
First Firing
Remove window frame assembly before lighting.
Upon completing the gas line connection, a small
amount of air will be trapped in the line. When first
lighting the unit with pilot light, it will take a few minutes
to purge the trapped air. Once purging is complete, the
pilot and burner will light and operate as indicated in the
instruction manual. Subsequent lightings of the appli-
ance will not require purging.
When lit for the first time, the appliance will emit a slight
odor for awhile. This is due to paint and lubricants used
in the manufacturing process. After each lighting, vapor
may condense and fog the glass; this moisture disap-
pears within a few minutes of burning.