Exploring the impact of technology on HVAC Commissioning practices

Abstract

The primary method to ensure that systems are operating as designed is heating, venting and air conditioning (HVAC) commissioning, painstakingly stepping through a sophisticated process of running, testing, and verifying that the various components move, react, and respond in a way that fully utilizes the equipment and meets the environmental needs of the building occupants. The significant positive impact of technology on HVAC Commissioning is undisputed. Little research exists, however, on the field challenges and resource implications of rapid changes to HVAC components and control software for owners and contractors. This research explores solutions to the challenges that arise when advanced HVAC controls technology becomes burdensome and disadvantageous. The role of HVAC Commissioning within the very real constraints of federal mandates for energy use and the trend to convert from fossil fuels to “clean” fuels cannot be overlooked. The “trade-offs” encountered are substantial when highly sophisticated control sequences are utilized with HVAC equipment in the private sector and government facilities. The consequence of the lack of skilled technicians clearly has the opposite effect on utility savings. This research validates the effect of the practices of skilled professionals that make up the commissioning team to ensure that building HVAC systems perform as intended by the designer and building owner. Data was collected from commission professionals in construction, research and design fields. Qualitative data analysis yielded six primary themes that represent sub-themes that were repeatedly described as challenges, positive benefits or obstacles to progress. Thematic analysis of the primary themes peeked beneath the surface of the interview narratives to ask what is the structure that supports the major themes. Looking for broader implications and consequences, interpretation led to three proposed action topics. Recommendations are offered to improve commissioning practices by solving the implications of technology on human resources and developing partnerships with the industry that promote HVAC systems’ efficiency. Finally, a compilation of industry experts’ perspectives is laid out for re-aligning HVAC equipment, software, and controls technology to fully utilize the vast opportunities for utility savings, equipment longevity, and occupant comfort.