HVAC Control Panel

The HVAC control system is typically distributed across three areas:

• The HVAC equipment and their controls located in the main mechanical room. Equipment includes chillers, boiler, hot water generator, heat exchangers, pumps etc.
• The weather maker or the “Air Handling Units (AHUs)” may heat, cool, humidify, dehumidify, ventilate, or filter the air and then distribute that air to a section of the building. AHUs are available in various configurations and can be placed in a dedicated room called secondary equipment room or may be located in an open area such as roof top air-handling units.
• The individual room controls depending on the HVAC system design. The equipment includes fan coil units, variable air volume systems, terminal reheat, unit ventilators, exhausters, zone temperature / humidistat devices etc.

Benefits of a Control System Controls are required for one or more of the following reasons:

• Maintain thermal comfort conditions
• Maintain optimum indoor air quality
• Reduce energy use
• Safe plant operation
• To reduce manpower costs
• Identify maintenance problems
• Efficient plant operation to match the load
• Monitoring system performance.