Bob and Tim had left this residence a few days ago when they discovered that the four-way valve on the home’s heat pump was stuck in the cooling mode. They tried several things to get the valve to do its normal changeover to the heating mode and couldn’t get it to function. The valve would need to be replaced.
After strong January numbers, United States combined shipments of central air conditioners and air-source heat pumps have shown another upsurge, totaling 357,637 units in February 2013, up 20.8 percent from February 2012, according to the latest statistics from the Air-Conditioning, Heating, and Refrigeration Institute (AHRI).
Bob and Tim were on their way to a service contract routine procedure when the dispatcher called and asked them to go to a residence that had no heat and had a very sick family member. They needed heat as quickly as possible.
QwikProducts™ by Mainstream Engineering has announced the launch of QwikSEER+WattSaver™, a new electronic control designed to reduce the energy consumption of existing air conditioners and heat pumps.
While I agree that heat pumps do move heat from one location to another, I strongly disagree with the premise that air-source and geothermal heat pumps are not renewable-energy heat sources.
CO2 as a refrigerant in cascade supermarket systems, transcritical applications, transport refrigeration, and heat pumps were among major developments in recent years. Here is a summary of those developments.
The refrigerator is actually a heat pump, as the method of operation is identical apart from one difference: Heat is extracted from the refrigerator and discharged into the surroundings, whereas the heat pump uses the thermal energy in the surroundings for heating purposes.
Honeywell has announced the availability of its new Solstice™ L-41 low global warming potential (GWP) refrigerant, developed as a lower GWP alternative to R-410A. According to Honeywell, Solstice L-41 offers a 75 percent reduction in GWP compared to R-410A.
Marvair’s high efficiency wall mount heat pumps and air conditioners are available with the GreenCube Energy Recovery Ventilator. The GreenCube ERV is an enthalpy plate energy exchanger with no moving parts.
