What is a TXV? (Thermostatic Expansion Valve)

What is a TXV? A thermostatic expansion valve (TXV) is a device that controls the flow of refrigerant into the evaporator coil of your home HVAC system. The TXV works by sensing the temperature of the refrigerant in the evaporator coil and adjusting the flow of...

What is a BTU?

BTU stands for British Thermal Unit. It is a unit of measurement for the amount of energy required to raise the temperature of one pound of water by one degree Fahrenheit. BTUs are commonly used to measure the cooling and heating capacity of HVAC units. How do BTUs...

What is NFPA 72?

NFPA 72, also known as the National Fire Alarm and Signaling Code, is a set of standards published by the National Fire Protection Association (NFPA) for the installation, inspection, testing, and maintenance of fire alarm and emergency communication systems. NFPA 72...