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6.5 OVER FIRING OR UNDER FIRING OF BURNER
NEVER "over fire" or "under-fire" units by increasing or decreasing the main orifice sizes or by adjusting gas pressure to increase
BTUH above nameplate specifications.
Over firing can cause permanent damage to firebox and det erioration of parts and void the warranty.
Under-firing can potentially cause delayed ignition and lead to property loss and person injury and will void the warranty.
If you are using a "backyard" Natural Gas well as the gas source, you must submit formal gas analysis data
sheets to Mendota Fireplace insert s for review and calculation of proper main burner orifice sizes prior to
first firing. It is known that unpurified Natural Gas from "backyard" wells can contain high energy levels
causing over firing. Further, unpurified gas can contain high levels of Sulphur and other compounds which
can damage the burner materials and the ceramic glass. Use of unpurified gas will void the warranty for this
product.
6.6 PILOT OUTAGE AND RE-LIGHTING
If pilot goes out, be sure to wait a minimum of five minutes before attempting to re -light. If lockout occurs
frequently, contact you Mendota Dealer for diagnosing the problem.
Frequent lockout can be caused by many factors and must be properly diagnosed, and the primary cause identified. It should
never be assumed that the ignition control system is faulty without proper diagnosis.
6.7 BURNER FLAME HEIGHTS REFERENCE DIAGRAM
85-03-01071
Figure 6-2 Burner Flame Heights: This image provides a visual reference
for the burner flames burning at maximum height after the burners have
been operating for 30 minutes or longer. A normal rear flame will be 1 to
2 inches above the rear log top edge. This, however, is dependent on the
gas type, air shutter opening setting and vent system configuration. Actual
flame heights can be slightly higher or lower when compared to this
reference image.
D30 DEEP TIMBER
Page 72
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