HVAC Efficiency Guides by Industry

Every building type uses heating, cooling and refrigeration differently. A hospital runs its air handlers around the clock to hold pressure relationships between rooms. A supermarket spends more electricity keeping food cold than on anything else. A school district cools buildings that sit mostly empty for ten weeks a year. The same efficiency measure can be a quick win in one of these settings and a poor fit in another, so this hub organizes our guidance by industry.

What each guide covers

Each guide follows the same structure so you can compare sectors or hand the right page to the right colleague:

• The energy profile. How much of the building's energy goes to cooling, ventilation, heating and refrigeration, using the U.S. Energy Information Administration's 2018 Commercial Buildings Energy Consumption Survey (CBECS), the most recent national end-use data, plus ENERGY STAR and Department of Energy (DOE) sector figures.
• The constraints. The rules and realities that shape what you can do: ventilation standards in healthcare, guest comfort in hotels, procurement law in government, budgets and calendars in schools, food safety and refrigerant rules in grocery.
• Where efficiency is lost. The usual suspects (controls drift, dirty coils, airflow problems, refrigerant charge) and the less visible one: oil film on the inside of heat-exchanger tubes, explained in what oil fouling is.
• Practical measures. A short, prioritized list for that sector, from no-cost scheduling fixes to capital projects.
• How a no-downtime treatment fits. Where an in-service treatment such as CRYOGENX4 can sit alongside other measures, described only in terms the company itself states.
• How to pilot and verify. A measurement plan you can run on one to three units before committing a portfolio, aligned with the International Performance Measurement and Verification Protocol (IPMVP).

How to use these guides

If you manage one building type, start with its guide and the linked equipment pages. If you manage a mixed portfolio, the energy-profile tables make it easy to see where cooling and refrigeration dominate the bill, which is usually where heat-transfer improvements pay back fastest. Finance and procurement readers can jump to the pilot and verification sections, then to building the business case.

Key concepts used throughout

• End use: the job energy does in a building, such as cooling, ventilation (fans), space heating or refrigeration. CBECS estimates end uses from survey data and engineering models.
• Baseline: the measured energy use and operating conditions before a change, against which savings are calculated. See how HVAC energy savings are measured.
• Measurement and verification (M&V): the process of proving savings, usually following one of the IPMVP options described in IPMVP options explained.
• Pilot: a small, instrumented trial on representative equipment. Our pilot program guide walks through the steps.

Figures in these guides are national averages and sector estimates from the cited sources; your buildings will differ with climate, age, hours and equipment. Product statements about CRYOGENX4 are the company's own, and results vary by equipment condition. To talk through a specific site, contact the CryogenX4 team.