Now in our last tutorial we looked at air handling units or ahu s.
Roof top unit efficiency gains.
The efficiency gains are significant.
Conventional gas fired rooftop heaters often have efficiency ratings between 78 and 82 percent.
Standard rtus may have an energy efficiency ratio eer of about 12 according to andrew lehrer practice leader of high performance buildings at environmental systems design inc.
The second award largest efficiency gain for a multiple building rtu replacement project was presented for.
Economizers on packaged roof top uints 5.
Types actuators characteristics 9.
Lower operating costs or standards such as leed include requirements for new low gwp refrigerants and create the need for products to support these changes in rtu designs.
Purpose of a rooftop unit.
They are usually purchased with air conditioning units and.
Lower peak usage supports better energy management for the facility and also lessens environmental impact.
Lower operating and maintenance costs.
Since 2013 300 partners have replaced or upgraded a total of 77 000 units saving over 166 million in energy costs and racking up 66 million in savings in 2016 alone.
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.
The retailer achieved an average of 50 installed efficiency gain at 40 stores and were able to reduce capacity on some units from 8 to 41.
Longer equipment life than heat pump units.
By brianna crandall april 21 2017 the u s.
Department of energy through the better buildings alliance s advanced rooftop unit campaign arc is recognizing eight organizations for their energy efficiency leadership in replacing and upgrading rooftop units rtus in commercial buildings.
Manufacturer specific rtu economizer controls 7.
Central air handling units economizers and controls 8.
Rooftop units provide comfort and efficiency offering.
The first award largest efficiency gain for a single building rtu replacement project was presented for 60 installed efficiency gain with 41 108 tons capacity reduction achieved in a single store.
The constant innovation in rooftop unit rtu design is driven by new demands for higher energy efficiency and local regulations.
Easily maintainable and replaceable systems.
For example a 10 ton unit required to meet an efficiency of 18 0 ieer achieved a 20 8 ieer a nearly 16 percent improvement.
Determining the true of osa air using charts and.
Typical economizer controls of rooftop units that utilize honeywell controls 6.
Fast morning warm up and response times.
Target a previous award winner was recognized for the largest efficiency gain for a multi building rtu replacement project.
In several cases that goal was exceeded.
High performance rtus may have an integrated eer ieer of 17 or more.
