How much do you know about thermostats?

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Questions and Answers

What is the key component of a thermostat and how does it regulate temperature?

The key component of a thermostat is the bimetallic element. It responds to changes in temperature and turns the furnace or air conditioner on/off to maintain the set point.

What is the anticipator on a thermostat and what is its function?

The anticipator on a thermostat heats the bimetallic element, causing it to bend and break the second electrical contact. Its function is to improve the accuracy of the temperature control.

What are the advantages of solid-state electronics in heat and air-conditioning controls?

Solid-state electronics are more accurate and responsive than older technologies. However, they usually require replacement for repairs.

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Study Notes

The thermostat regulates the temperature of a home.
It responds to changes in temperature and turns the furnace or air conditioner on/off to maintain the set point.
The bimetallic element is the key component of the thermostat.
Older thermostats have two exposed contacts while modern ones have coiled bimetallic strip elements.
The anticipator on the thermostat heats the bimetallic element, causing it to bend and break the second electrical contact.
More modern thermostats have sealed contacts behind glass to protect from dirt.
Solid-state electronics are used for controlling air temperature in the latest heat and air-conditioning controls.
Solid-state controls are more accurate and responsive but usually require replacement for repairs.
Understanding how heating and cooling systems function can help prevent problems.
The thermostat is a heat-sensitive switch.