The typical start up sequence for a hot surface ignition system is:
A) Gas valve and igniter energized, flames sensed, combustion blower and indoor blower energized after time delay.
B) Combustion blower prepurge, igniter energized after a delay, gas valve energized after a delay, flames sensed, indoor blower energized after time delay.
C) Combustion blower, indoor blower, igniter, and gas valve all energized simultaneously.
D) Combustion blower energized, igniter energized and gas valve energized, flames sensed, indoor blower energized after time delay.
B
You might also like to view...
How many degrees apart are the 1?4-20 tapped holes to be from each other?
Review drawing number 523597B0A and then answer the question.
What is the most widely used transformer?
A. Power B. Voltage C. Auto D. Current
Solid core doors are preferred by many homeowners because of their added weight and feel when opening the door
Indicate whether the statement is true or false
The national organization serving teachers and students preparing for careers in technical, skilled, and service
occupations is _____ a. VoTech International b. SkillsAmerica c. Vocational Clubs, U.S.A. d. SkillsUSA