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Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014
Refractory Block
1. Ensure gasket is installed between burner and
block holder .
2. Ensure gasket is installed between block holder
and chamber wall .
3. Support the weight of refractory block with hard brick
work anchored to the furnace shell . Fill the 1/2"
space between block and the three unsupported
sides with soft gasket material .
Figure 3.6. Refractory Block
Large Refractory Blocks
On sizes RM0300 through RM3000; the block must be
tightly surrounded by a collar made of brick, plastic
refractory, or a castable refractory of at least 4" (10 cm)
minimum thickness on all sides of the block. If the collar is
cast around the block, a thin plastic film (i.e. Saran Wrap
®
or Glad Wrap
®
) should be wrapped around the block to
keep moisture from leaching into it. The collar should be
anchored to the furnace shell with suitable anchors and
must be constructed to rest on a surface capable of
supporting its weight, such as a hearth or a solid refractory
or brick wall. For furnaces that are unable to support the
weight of the refractory block, a stainless steel shelf can be
welded to the shell to support the collar.
Refractory Block Curing Schedule
The refractory block was cured at the factory up to a
temperature of 650°F (345°C). Final curing should be
done after installation.
The recommended curing schedule is:
• Ambient to 600°F (315°C) at 100°F (55°C) per hour.
• 600 °F (315°C) to 1000°F (540°C) at 25°F (14°C) per
hour.
• Hold the refractory block at 1000°F (540°C) for 12
hours.
• Cool or raise the operating temperature at a rate of
100°F (55°C) per hour.
NOTE: The correct insulation of burner combustion blocks
in furnaces results in longer block life and adds value by
reducing downtime and maintenance.
Block Holder Temperature
Excessive block holder temperatures can cause
problems. Overheating can be reduced by carefully
sealing the burner blocks in the wall to prevent the
leakage of hot gases back to the furnace shell.
In high temperature (>1,400°F, 760°C) fiber-wall furnace
installations, the length of the metallic wrapper should
extend no farther than the point in the wall where the
interface temperature is higher than 1800°F (760°C).
Vertical Down Firing Blocks (Figure 3.6)
1. Down firing blocks may be suspended by customer
supplied hangers attached to the burner body mounting
bolts.
2. Hangers should be attached to structural support.
Gas Piping
Burner Piping
The burner is factory assembled and shipped as ordered.
NOTE: If it is necessary to redirect piping, be sure the:
• ratio regulator spring column is pointing up.
• arrow on the ratio regulator points in the direction of
gas flow.
• integral fuel orifice and o-rings are re-installed in
the same orientation with respect to the fuel flow.
• same straight run of pipe remains between the
ratio regulator and the burner.
Figure 3.7. Burner Piping
NOZZLE
POSITION
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