This HVAC thermostat features advanced configuration parameters for floating point control and proportional-integral logic

This MARS Blue Box series component provides the necessary phase shift for starting and running both the compressor and the condenser fan motor in residential and commercial air conditioning systems

For technicians troubleshooting short-cycling or "no-heat" calls

this is a reversible motor

Common Technical Questions How do I know if my STS-103 requires a new 30755080-501 battery pack

Conbraco Industries 18C-522-8-125 Valve R-410A This HVAC thermostat features advancedThe Conbraco 18C 522 8 125 is a high capacity Temperature and Pressure Relief Valve designed for heavy duty protection of commercial water heaters and storage tanks. This Apollo Valves 18C Series T&P valve is factory set at a 125 PSI relief pressure and a 210F temperature limit. Featuring a 1" FNPT inlet and outlet, it delivers a massive 3,070,000 BTU hr steam relief capacity, ensuring safety in high demand potable water systems. The 8 inch probe