Johnson Controls M9124-JGA-2 Actuator THPU32HP7Y which is the industry standard

which is the industry standard for most boiler and water heater manifolds

System Compatibility: Fully compatible with Selectra Series 14 and 44 electronic modulation systems

Can I use a higher WC rated switch as a substitute

it is standard practice to mount these relays in a position that allows easy access to the bias adjustment and prevents moisture accumulation in the ports

Johnson Controls M9124-JGA-2 Actuator THPU32HP7Y which is the industry standardThe Johnson Controls M9124 JGA 2 is a heavy duty electric non spring return actuator engineered for precise control of dampers and large valves in complex HVAC automation systems. Operating on a 24V AC DC power supply, this model delivers a robust 210 lb in torque, making it suitable for high static pressure environments. It features a unique 100 10,000 ohm potentiometer feedback signal, allowing for accurate position monitoring via a building