Clear, well-written HVAC control sequences are the critical link between design intent and real-world system performance, ensuring DDC programming, commissioning, and long-term building operation succeed as intended.

This article explains why ANSI/AAMI ST108:2023 has become a de facto enforceable standard and offers practical design guidance for plumbing engineers to ensure compliant water systems in hospital sterile processing departments.

Plumbing material and design considerations for durable, efficient and user-friendly commercial bathrooms help ensure longevity and easy maintenance. 

Discover the critical role pressure-sustaining control valves play in maintaining stable pressure levels in water distribution and health-care systems. Learn key considerations and best practices for selecting, installing and maintaining these valves to optimize system performance. 

Understanding the intricacies of the drain, waste and vent (DWV) system is fundamental for anyone working in the plumbing industry. 

Previous sizing practices have routinely overestimated the required capacity of domestic water heating systems, relying on the Modified Hunter’s Curve to determine water systems sizing. Data-driven engineering, however, helps building owners and managers achieve new levels of safety, efficiency and cost/space savings for occupant needs.

Oversizing a domestic water system can lead to aging water and stagnation, the two biggest factors in waterborne pathogen growth. Yet modern plumbing codes still require or strongly recommend outdated sizing methods such as Hunter’s Curve, doing our building owners a disservice and putting the public at risk.

Ron George explains the emergency shower and eyewash standard and OSHA requirements.