Electronic Ignition Flashcards
What’s DS I stand for
Direct, spark, igniter
What’s IP stand for?
Intermittent pilot
What’s HSI stand for?
Hot surface igniter
An automatic ignition system uses what flame sensing device
Flames sensor
Flame rectifier
What gas control valve uses DSI
IP
HSI
Smart valve
What’s the benefit of a redundant gas valve?
It can’t stop the flow of gas
What’s the function of flame sensor?
Flame rectification
Play conductivity
On a spark, ignition system, the gap between the igniter sensor, and the grounding should be
1/8
What is meant by pre-purge
The inducer motor starts for 15 seconds to ensure everything is good
What is meant by trial for ignition
Gas valve opens to heat a heat exchanger what closes and retries ago
What is meant by system lockout
After a given amount of times, the furnace will stop working for for a set time. Unless it’s been reset.
Describe intermittent ignition
Ignition that continues to function during the time The flame is present.
Describe, interrupted ignition
Ignition that ceases after trial for ignition.
Describe continuous pilot
Pilot that burns throughout entire time. The burner is in service or not.
Describe proved pilot
Pilot flame supervised by primary safety control that senses presence of the pilot admitting into the burner
