Roof Top Unit Efficiency Gains

This means that they are heating or cooling buildings to occupied levels 24 7 which is very wasteful says huffman.

Roof top unit efficiency gains.

Lennox lgh048u4e energence ultra high efficiency rooftop units 60hz. Since the campaign s inception in 2013 more than 350 participants have impacted 160 000 rooftop units saving 110 million and more than 1 billion kilowatt hours kwh annually. Doe called it. The combustion chamber heat exchanger and the flue are fabricated from a high grade stainless steel and include continuous drainage paths for the condensed products of combustion from the points of condensation to a collective drain point.

However the marginal efficiency gains are unlikely to offset the higher capital cost of a larger unit. Lower peak usage supports better energy management for the facility and also lessens environmental impact. Department of energy doe has recognized eight organizations for leadership in the better buildings initiative s advanced rooftop unit rtu campaign. Lennox lch180u4m high efficiency rooftop unit.

Arcs climate control and energy efficiency. The unit included a high efficiency rigid cell filter for supply air treatment. While rtu technology is becoming more and more efficient there is an inertia holding commercial buildings back from upgrading their units to higher efficiency models. A large slice of the commercial building stock is heated and cooled primarily by packaged rooftop units rtus.

Arby s restaurant group inc which installed 238 high efficiency rooftop units across 900 stores for an estimated savings of 1 4 million kilowatt hours and 140 000 annually. Doe recognizes companies programs for rooftop unit efficiency. The tests were carried out by the oak ridge national laboratory ornl and manufacturer trane as part of the us department of energy s effort to support the transition to lower gwp. Increasing rooftop unit efficiency not only reduces energy use but also lowers peak usage time which is power used during the hours when the energy grid suffers the greatest strain.

Older inefficient commercial rooftop unit air conditioning systems are common and can waste from 900 to 3 700 per unit annually. Rtus built according to the high performance rooftop unit specification can reduce energy use by 40 to 50 percent as compared to the 2016 ashrae 90 1 standard. Hvac gains prominence in the year of covid 19. Most of these units are controlled by a simple thermostat on the wall.

Lennox lch122u4e m high efficiency rooftop unit. Lennox lch300u4m high efficiency rooftop unit. Businesses nationwide would save about 1 billion each year in energy costs if they replaced their 10 to 20 ton commercial units with units that meet this specification says doe s better buildings alliance website.