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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…
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Performance for vapor compression refrigeration cycle – Evaporator or DX coil
This note illustrates the performance curve of the evaporator or direct-expansion coil. For condensing unit…
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Performance for vapor compression refrigeration cycle – Condensing unit
The performance curve of a vapor-compression refrigeration cycle illustrates how the system’s efficiency varies under…
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Fire department access road requirement
According to NFPA 1, access roads need to provide adequate access to the building for…