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1.6
FINISHING
Figure 8 shows the minimum vertical and correspond-
ing maximum horizontal dimensions of mantels or other
combustible projections above the gas heater.
1.7
LOG INSTALLATION
Carefully remove the log package from the fireplace
and the logs from their package. Handle logs gently.
Place the logs in the fireplace by following the steps
shown on pages 11-13.
Replace the glass door and trim door previously re-
moved prior to lighting the unit. Be certain the gas logs
are properly positioned.
12" (305mm)
MAXIMUM
MANTEL
12" (305mm)
MINIMUM
TOP OF
UNIT
FIGURE 8
14
Heat & Glo • ATS-AU-D • 327-900 Rev. D • 2/06
1.8
INSTALLER TESTING
The space heater must be tested and be operating
according to manufacturer's specifications prior to the
installer leaving the site. Note: The tips of the flames
should never hit the top of the firebox after the unit
has warmed up. Please contact your dealer or a quali-
fied service person to replace injector or adjust valve.
Upon completing the gas line connection, a small
amount of air will be in the lines. When first lighting
the pilot light, it will take a few minutes for the lines to
purge themselves of this air. Once the purging is com-
plete, the pilot and burner will light and operate as indi-
cated in the Lighting Instructions.
Subsequent lights of the appliance will not require such
purging.
CAUTION:
DURING THE INITIAL PURGING AND
SUBSEQUENT LIGHTINGS, NEVER ALLOW THE
GAS VALVE CONTROL KNOB TO REMAIN DE-
PRESSED IN THE "PILOT" POSITION WITHOUT
PUSHING THE RED IGNITOR BUTTON AT LEAST
ONCE EVERY SECOND.
Follow the Safety Information and Lighting Instructions
pages of this manual to light the appliance.
To obtain proper operation, it is imperative that the pi-
lot and main burner flame characteristics are steady,
not lifting or floating. Typically, the top 3/8-inch (10mm)
of the pilot generator should be engulfed in the pilot
flame. (Figure 9).
FIGURE 9
Proper gas log positioning is shown on pages 11-13.
Follow Section 3.5 TROUBLESHOOTING for adjust-
ing the appliance to operate properly.
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