Louisville Tin and Stove 78111 warranty Proper Burner Flame, Operation, 5” to 7”, Page

PROPER BURNER FLAME

A proper flame will have a dark blue inner mantle that sits right on top of the burners with a lighter blue outer mantle rising above the burner, (See Figure 11). There may be some yellow where the pilot flame and burner flame meet. There is no primary air adjustment on the burner, and proper flame is assured since the correct manifold pressure and orificing has been done at the factory. NOTE: It is advised that the burner flames be checked at least twice during the heating season for any changes in burner flame characteristics. The appliance area must be kept clear and free from combustible materials, gasoline, and other flammable vapors and liquids. This heater comes from the factory with the proper burner orifice for elevations up to 2,000 feet. Heaters installed above 2,000 feet must be derated 4% for every 1,000 feet. For the proper orifice size find the Model Number and elevation on the orifice chart (See CONTROLS). Replace burner orifice.

5” to 7”

Approx.

1”

FIGURE11

OPERATION

This heater is equipped with a slow opening gas control. On a call for heat the gas valve does not snap-open to full manifold pressure, but opens with a gradual increase to normal manifold pressure. The time lapse from the call for heat to normal operating pressure is two to five seconds. The slow open feature assures a safe, less noisyignition.

After the heat exchanger has warmed sufficiently, the fan will automatically come on to efficiently transfer the heat into the room. NOTE: All but the 35,000 BTU unit (which is one speed) have an automatic two-speed fan. In a new installation or on fall start-up in a very cold room, some on-off cycling of the fan may occur if the heat exchanger cools too much. The burner, however, will continue to operate and the fan cycle until the thermostat is satisfied.

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