If you’re shopping for a new cooling system this summer, consider one with the thermal expansion valve (TXV). This small upgrade will improve the performance and longevity of a heat pump or air conditioner. The valve adjusts the amount of refrigerant that the compressor sends into the evaporator coil inside the air handler. It senses the cooling load indoors and only fully opens when the load is high.The adjustable refrigerant flow saves energy because the compressor works hard to liquefy the refrigerant to cool your home. When less is needed, it doesn’t run as hard. The lighter load also increases the compressor’s life, an important benefit since it’s one of the most expensive parts of the cooling system.
Besides lowering electric bills and repair costs, the TXV offers these advantages:
- Many homeowners aren’t aware that low refrigerant levels can harm the equipment. However, it’s a more common problem than most people recognize. A normal valve can send all the refrigerant into the evaporator coil, starving the compressor, which may damage it. The thermal expansion valve eliminates this hazard, since it seldom allows all the refrigerant into the system, especially in our milder summer weather.
- The TXV also prevents problems with the compressor that result when the cooling load indoors is low and the compressor sends too much refrigerant. When there’s too much, some of it will return to the compressor as a liquid, which can harm the unit.
When you combine a TXV with other advanced features, you can look forward to reduced cooling bills for years to come:
- Filter-check light. Clean filters go a long way toward increasing the life of your air conditioner along with keeping cooling bills low.
- Fan-delay switch. This switch runs the blower for a short time after the condenser turns off to blow all the cooled air in the ducts into your rooms, instead of being wasted sitting in the ducts.
If you’d like more information about the thermal expansion valve, please contact us at Team Bob’s Heating Cooling Plumbing. We’ve provided top-notch HVAC services for Grand Traverse and surrounding counties for more than 30 years.
Our goal is to help educate our customers in Traverse City, Michigan and surrounding areas about energy and home comfort issues (specific to HVAC systems). For more information about boosting A/C performance and other HVAC topics, download our free Home Comfort Resource guide.
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