Which devices are typically used for measuring pressure in HVAC systems?

In HVAC systems, pressure measurement is crucial for monitoring the performance and safety of cooling and heating systems. The correct pair of devices used for this purpose includes a manometer and a pressure gauge.

A manometer is a simple device often used to measure pressure in fluid systems, providing readings that can indicate whether the system is operating within its recommended pressure range. This is especially useful for calibration and troubleshooting in both residential and commercial HVAC applications.

On the other hand, a pressure gauge is more commonly found in HVAC systems for providing a direct reading of pressure within the system. It is designed for various types of pressures, such as static, differential, and gas pressure, making it a versatile tool in the HVAC technician's toolkit. Pressure gauges can show both vacuum and positive pressure and are essential for ensuring that systems like refrigerants and heating elements are operating at safe and efficient levels.

While other options may include devices that measure different aspects of HVAC systems, the combination of a manometer and a pressure gauge specifically highlights the focus on pressure measurement, which is integral to system performance monitoring and maintenance.