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8 Cards in this Set
- Front
- Back
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How far to set thermocouple or thermopile into pilot flame? |
3/8" to 1/2 " |
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What is purpose of an open-circuit test? |
To find the full output of the thermocouple by itself with nothing connected. |
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What is an acceptable open circuit voltage range? |
17 mv to 32 mv |
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What is the purpose of a closed circuit test? |
Is about finding the voltage drop across the power unit( under load) |
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What is "response time"? |
The time it takes the thermocouple to cool down sufficiently to cause the electromagnet on the power unit to de- energize and stop the gas flow. |
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The response time shall not exceed? |
3 min or 180 sec for appliances up to and including 400 000 btu |
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When installing a new thermocouple, avoid bending the thermocouple too close to either end? What is the measurment? |
1/2 " |
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What temperature would you want the furnace fan to turn on between? And what temp to shut off? |
When the temperature reaches between 120°f and 140°f for fan on, and 90°f and 100°f for off |
