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Basic HVAC

 Here are the basics of HVAC (Heating, Ventilation, and Air Conditioning):


Heating:


1. Furnaces (gas, oil, electric)

2. Boilers (hot water, steam)

3. Heat Pumps (air-source, ground-source)

4. Radiant Floor Heating


Ventilation:


1. Fans (supply, exhaust, return)

2. Ventilation Rates (ASHRAE standards)

3. Air Filtration (filters, purifiers)

4. Dehumidification (humidistats, dehumidifiers)


Air Conditioning:


1. Air Conditioners (window, split, central)

2. Evaporative Cooling (swamp coolers)

3. Chillers (air-cooled, water-cooled)

4. Cooling Towers


HVAC System Components:


1. Compressors

2. Coils (evaporator, condenser)

3. Fans (centrifugal, axial)

4. Pumps (circulating, condensate)

5. Valves (control, isolation)

6. Ductwork (supply, return, exhaust)

7. Controls (thermostats, sensors, actuators)


HVAC System Types:


1. Constant Volume (CV)

2. Variable Air Volume (VAV)

3. Constant Air Volume (CAV)

4. Hybrid Systems


Key Concepts:


1. Thermodynamics (heat transfer, energy balance)

2. Psychrometrics (humidity, dew point)

3. Airflow and Pressure Drop

4. Refrigeration Cycle

5. Energy Efficiency and Savings


This is a basic overview of HVAC systems.

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