Scenario: Single stage residential
cooling equipment. Homeowner complains that humidity is too high at their
desired thermostat setting. Actions: You think this is too easy. Probably a system-related
problem (dirty filter, low charge, dirty condenser; the usual stuff). But you
also realize that it’s been a little cooler than most summers.
Trivia question: What was the first law that President Obama signed
into law after being elected? Answer: President Obama’s first act upon taking office
was to sign the Lilly Ledbetter Fair Pay Act of 2009. Although it hasn’t
received much fanfare, the ramifications of the Act are only now starting to be understood.
When building officials questioned whether HVAC fabric air dispersion could outperform metal ductwork/register systems in a new $17 million community center, consulting engineering firm Millcreek Engineering Co. used its own custom-designed proprietary modeling software to demonstrate its performance.
Warmer spring weather is here and Bob is beginning to get calls about units that are not cooling. He has just received a call from an old customer who said that her unit cools fine during the morning and daytime, but at night, it stops cooling. Bob investigates, and with Btu Buddy's help, finds the coil is dirty.
Outdoor air brought into a building can be expensive to temper and, if not properly conditioned, can cause humidity problems for the building. Designers are increasingly finding that using dedicated outdoor air systems (DOAS) allows them to comply with ASHRAE 62.1 with an energy efficient and easily verifiable design.
This time around we have a customer who has called to say that it’s warmer than it should be in their home. When you arrive you find a nine-year-old package unit, and you determine in a short time that, electrically, everything is as it should be, which means that what you have is a unit that is running, but is not cooling enough.
Advertising is only one way to get your message out to customers and prospects. Be sure to use all the marketing tools at your disposal. For a low-cost way to promote your HVACR business, take advantage of publicity opportunities.
The U.S. Environmental Protection Agency (EPA) has issued a proposed finding that greenhouse gases contribute to air pollution that may endanger public health or welfare. The proposed finding, which now moves to a public comment period, identified six greenhouse gases that pose a potential threat.
The customer had called another contractor and was not pleased with the results, so Bob’s company was called. The other technician said he could not get the compressor to start. With Btu Buddy’s help, Bob checks all the components that have to do with starting the compressor. He finds that the start relay needs to be replaced.
The U.S. Department of Energy (DOE) has actively supported cost-shared combined heat and power (CHP) R&D and demonstration projects. This article showcases four successful CHP demonstration projects, and illustrates its broad applicability across industrial, commercial, and institutional facilities.