What is the difference between the FX20 and the FX20-1

including the BTH

Designed as a pilot burner replacement within the reliable 1830 series

The Johnson Controls M9104-AGA-2S is a high-performance non-spring return direct coupled actuator engineered for precise control of dampers and valves in HVAC systems

Always calculate the Minimum Circuit Ampacity (MCA) and Maximum Overcurrent Protection (MOP) based on the specific blower motor and heater combination found on the unit’s rating plate

Belimo ZG-GV05 Rebuild Kit 320788-702 What is the difference betweenFor veteran contractors servicing high capacity hydronic systems, the Belimo ZG GV05 Rebuild Kit is the industry standard solution for refurbishing 2. 5 inch Belimo globe valves. Specifically engineered for the G665 and G665 250 series, this comprehensive valve repair kit allows technicians to restore original seat integrity and flow control precision without the labor intensive process of replacing the entire valve body. Whether you are addressing