8
NG Air Shutter
Slider & Cover
Open
Open
Close
Close
NG
Flashback
shield (for
LPG only)
LPG Air Shutter
Slider
Open
Close
LPG
8
• Optional 975ZCK Zero Clearance Kit must be used
when installing the 922 fireplace into any application
other than as an insert into an approved solid-fuel
burning fireplace cavity and chimney. Complete
installation instructions are packed with the 975ZCK.
• The 975ZCK is approved for installation directly on
combustible type flooring such as plywood.
enclosures Constructed Using Combustible Materials (ZC Installations)
Appliance Preparation
Check ignition spark
The pilot burner and electrode unit is at the left end of
the burner.
Push in the lighting knob and turn counter-clockwise
through the “IGN” position to “PILOT”. A spark should
flash across from the pilot electrode to the pilot burner
shield.
Aeration Setting Check
The burner is equipped with an adjustable shutter
to control primary aeration. See figure below. The
shutter is factory set at an aeration gap which will
give optimum performance for the vast majority
of installations. In a few unusual installations,
performance may be improved by adjusting the
aeration. The need for adjustment should be
determined by operating the appliance with the ceramic
fuel effects and window installed. See the
Final Checks
section in this manual for adjustment details.
The shutter setting is very critical. A small change can
make a substantial difference to the performance.
Air Shutters
Location & Clearances
