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Left-hand and Righ-hand coil in HVAC system
Left-hand coil and right-hand coil in HVAC system refer to the orientation of the coil’s…
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Closed-loop control
A closed-loop control strategy continuously monitors the actual condition of the controlled variable—such as the…
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Open-loop control
An open-loop control strategy uses a fixed relationship between outdoor air temperature and the desired…
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Types of control loops
There are two main types of control loops: Related notes: Basic of HVAC controls Sensor…
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Performance for vapor compression refrigeration cycle – CDU and Evaporator maching curve
This note illustrates the performance curve of the vapor compression refrigeration cycle. This can be…
