Installation
2-4
750-204
Profire D/LND
2.3 — Installation
Locate the burner properly. The burner is designed for operation with the blast tube level. Do not tilt the burner
up or excessively downward. Installation of the refractory oven or combustion cone, shipped with the burner, is
shown in Figures 2-3 and 2-4.
FIGURE 2-3. Firebox and Watertube Burner Mounting Details
Securely support the burner pedestal on the floor or foundation Allow enough clearance at the rear of the burner
to allow the housing to swing open for service and maintenance. Figure 2-2 shows an installation with typical
burner support. Many boilers, including some Scotch Marine types, do not have sufficiently rigid front plates and
require additional support under the burner base. Bases under the support leg must be long enough to support
the burner when being inserted or withdrawn from the boiler. Boilers operating with the combustion pressure
above atmospheric pressure must be sealed to prevent escape of combustion products into the boiler room. The
burner mounting flange is designed to provide for a seal. The face of the boiler and burner flange must be sealed
with the gasket provided with the burner. Carefully place the gasket over the dry oven bolts before it is mounted
onto the burner flange. The I.D. of the dry oven is slightly larger than the blast tube I.D. Make sure the dry oven
and burner blast tube are concentric. Due to bolt hole tolerances, the dry oven may have to be shifted to accom-
plish this. After the dry oven nuts are properly tightened, the burner and dry oven assembly can then be
mounted into the boiler. For maximum safety, it is recommended that boilers not operating under pressure should
also be sealed.
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