Start Capacitors for HVAC Compressors - HVAC single-phase compressors always come hooked up to a run capacitor. This helps the compressor when it is running, however, very few HVAC compressors come with a start capacitor. Most HVAC technicians know HVAC compressors pull a lot of amps on startup. This large amperage draws on startup is referred to technically as locked rotor amps or inrush current. It can be as much as 40,000 watts or more of pure power to get an HVAC compressor started. (more…)
How Inverters Work Basics - The new way for ultra-efficient air conditioners and heat pumps have modulating compressors and motors. A few years ago it was rare that I got an email asking the question about how inverters work but now I have noticed the question coming more and more so I wanted to write an article to explain how inverters work.
Inverters are used in air conditioning to modulate compressors and fan motors from 100% down to a minimum of 20% although the minimum will vary from manufacturer to manufacturer according to part selection and engineering limitations. To truly understand how inverters work one has to have a basic understanding of electronics. (more…)
HVAC Tip - Ceiling Fans Save Energy: Ceiling fans installed strategically in your home or business can save you in air conditioning energy costs in the summer. The draft effect from the fan will allow you to raise the thermostat setting by up to 4 degrees and still remain comfortable. Make sure you purchase ceiling fans with energy efficient motors and blade designs. Some ceiling fans have inefficient motors and bad blade designs that will reduce the energy savings you can realize. A qualified electrician can install ceiling fans in your home or business and you can enjoy the savings and compliment your HVAC system.
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