In positive pressure systems, area alarm sensors for critical care areas must be located on which side of the zone valve box assemblies?

In positive pressure systems, area alarm sensors for critical care areas are required to be located on the patient or use side of the zone valve box assemblies. This placement is crucial because it allows for continuous monitoring of the air quality and pressure in the areas where patients are located. By positioning the sensors on the patient side, they can detect any changes in pressure or potential breaches in the system that could compromise patient safety or the integrity of the medical gas being delivered.

Monitoring on the patient side ensures that any loss of pressure or contamination is promptly addressed, helping to maintain a stable and safe environment for critical care. This positioning aligns with standards and practices designed to protect patient health and support the reliable functioning of medical gas delivery systems.