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Language: English
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Training Time: 20 minutes
Compatibility: Desktop, Tablet, Phone
Based on: Industry Standards and Best Practices
Languages: English
Heating systems are one of the many ubiquitous conveniences of modern life. For many of us, central heating systems have always been a part of our lives. We only seem to notice heating systems when they are malfunctioning. Yet it took inventors and scientists to discover and understand heat transfer to then apply these principals for us to depend upon reliable heating systems. It behooves design engineers, operators and maintenance personnel to have a basic understanding of a few heat transfer concepts to ensure proper operation of heating systems. This course will discuss three types of heat transfer: convection, conduction and radiation. It will show how heating systems operate utilizing these forms of heat transfer acting in concert with each other. The operation of hot water and steam boilers along with electric heater will be examined. Finally, a brief explanation of controls for heating system will be presented.
Cooling Basics
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Cooling System Maintenance
Heating Theory
HVAC - Air Side: Air Balance Basics
HVAC - Heating and Cooling
The following key questions are answered in this module:
What is latent heat? Latent heat is the heat required to change a solid to a liquid or a liquid to a vapor without changing the temperature of the substance.
What is an aquastat? An aquastat is a simple thermostat in a residential hot water boiler used to maintain water at a constant supply temperature.
What is conduction? Conduction is the transfer of heat through a solid object.
What is convection? Convection is the heating of a liquid or gas which then moves by natural or mechanical means which in turn heats more of the fluid.
What is a BTU - British Thermal Unit? A BTU is the Imperial unit equal to the amount of energy to heat one pound of water one degree Fahrenheit.
Below is a transcript of the video sample provided for this module:
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