Chapter 12 Four Most Common Combustion Problems Flashcards
1
Q
The 4 conditions cause __% of all gas burner problems
A
The 4 conditions cause 80% of all gas burner problems
2
Q
PILL - What are the 4 conditions
A
Poor combustion
Impingement
Lack of combustion air
Lifting
3
Q
what are symptoms of poor combustion
A
High CO yellow tipping light blue flame kernels carbon deposits/buildup impingement aldehyde odor
4
Q
what are causes of poor combustion
A
poor mixing combustion incomplete flue restrictive inadequate primary or secondary air air shutter too restrictive port loading too high poor gas burner port spacing orifice problems secondary air cannot get into the gas burner ports
5
Q
what are symptoms of impingement
A
High CO
carbon deposits/buildups
long lazy flame kernels
6
Q
what are causes of impingement
A
inadequate head height port loading too high inadequate primary and/or secondary air air shutter too restrictive flue too restrictive
7
Q
what are symptoms of lack of combustion air
A
High CO yellow tipping light blue flame kernels flame rollout carbon deposits/buildup aldehyde odor floating flames re-circulation
8
Q
what are causes of lack of combustion air
A
inadequate primary and/or secondary aeration
orifice problems
poor secondary aeration penetration characteristics
9
Q
what are symptoms of lifting
A
3 consecutive flame kernels lifting
High CO
10
Q
what are causes of lifting
A
port loading and/or velocity too high
