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3 Cards in this Set
- Front
- Back
What type of switch is a limit switch and what should it read when working properly? |
Normally closed switch and should read o ohms when working properly. |
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What are the 5 functions of a control board ? |
1)purge cycle for 8 seconds roughly2)opens gas valve3)sends spark or ignition 4)sense flame5)time delay built into board post 2005 |
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What does a thermometer do ? |
Measures intensity of heat |