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Eclipse ThermJet Self-Recuperative, V5, Installation Guide 208, 2/4/2013
Start-up sequence runs but burner
does not light,
continued
Not enough gas:
• Gas valve not open
Check wiring to the automatic gas
shutoff valve.
Not enough gas:
• Air in the gas line
Check output from the flame safeguard
then open the gas cock and purge the
gas line.
The low fire flame is weak or unstable • Low fire adjusted too low
Increase low fire gas setting.
• Not enough gas
Check gas adjustment and modify to
increase gas flow.
• Not enough air
Check air adjustment.
Investigate any change, i.e. blocked
filter, loose connections.
Increase air supply piping.
The burner goes off when it cycles to
high fire
• Insufficient air (flame too rich)
Check air adjustment
Check air filter, clean or replace if
required
The burner is erratic and does not
respond to adjustment
• Flame signal weak
Check condition of flame monitoring
device.
• Internal damage to the burner. Some
parts inside the burner may be loose or
dirty
Contact your Eclipse Combustion
representative or the Eclipse factory.
The burner is unstable or produces
soot or smoke
• The air/gas ratio is out of adjustment Measure all the gas pressures and air
pressures, then compare to initial
startup settings and adjust where
necessary.
Cannot achieve full capacity
• Air filter is blocked
Clean or replace the air filter.
• Gas pressure is too low into the main
gas pressure regulator
Adjust gas pressure.
• Increased furnace/chamber pressure Re-check setup pressures.
• Poor piping practices
Contact factory
Cannot achieve efficiency
• Too much eductor flow
Adjust eductor.
Furnace not balanced
• Eductor is not adjusted properly
Re-check setup.
• Insufficient pressure to eductor
Check piping practices and blower
sizing.
Problem
Possible Cause
Solution
