Owner`s manual

30816-3-0113Page 24
PILOT FLAME CHARACTERISTICS
INTERMITTENT PILOT
Correct Pilot Flame Pattern
PILOT
SENSOR
IGNITOR
Figure 19
Incorrect Pilot Flame Pattern
PILOT
SENSOR
IGNITOR
Figure 20
Ifpilotamepatternisincorrect,asshowninFigure20:
• SeeTroubleshooting,page30-31.
Cleaning and Pilot Maintenance
Oxygen Depletion Sensor Pilot
When the pilot has a large yellow tip ame, clean the Oxygen
Depletion Sensor as follows:
1. CleantheODSpilotbylooseningnutBfromthepilottubing.
Whenthisprocedureisrequired,graspnutAwithanopenend
wrench.
2. Blowairpressurethroughtheholesindicatedbythearrows.
Thiswillblowoutforeignmaterialssuchasdust,lintandspider
webs.TightennutBalsobygraspingnutA.
A
B
Millivolt Pilot
Figure 21
B
A
Hydraulic Thermostat Pilot
Figure 22
AB
Intermittant Pilot
Figure 23
WARNING
Never use needles, wires, or similar cylindrical objects to
clean the pilot to avoid damaging the calibrated ruby that
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