Air-source heat pumps, in particular, have benefited from the use of inverter-driven compressors.
Simply stated, technology adjusts the speed of the motor to meet the load demands over wide range of operating parameters versus conventional system that runs the motor at 100% or 0% speed, with no options in between, said Katie Davis, president of engineering and technology at Trane Technologies Residential HVAC and Supply..
For example, single-speed system, the compressor will run at 100% capacity until the temperature reaches the set point on the thermostat, said Davis...
With these types of systems, the compressor may run at 25% speed, on and off, throughout the day, instead of 100% speed, on and off, throughout the day, to meet the temperature requirements...
The inverter is component that varies the frequency of the power supply, modulating RPM of the compressor to manage its capacity or output.
The inverter instructs the compressor to operate at specific speed to attain the temperature within designated timeframe, said Scott Salvage, president of product marketing at Daikin.
Salvage likens the inverter to the cruise control feature in car, noting, typical single-stage HVAC system will turn on and off at 100% capacity only.
The installation of systems employing technology is similar to that of equipment.
the revised test procedure resulted in new metrics of SEER2, HSPF2, and EER2 being used instead of SEER, HSPF, EER.
By the antiquated testing metrics of the newly adopted, Unfortunately, the efficiency benefits of technology systems continue to not be measured SEER2 and HSPF2 efficiency metrics, said Scott Salvage, president of product marketing at Daikin..
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