always use the 350F rollout switch specified by the manufacturer

Direct Integration: Features standard terminal block connections for straightforward field installation and voltage testing

corrosion-resistant plastic designed specifically for HVAC condensate management

8" WC during high-fire demand

While the 221526 is factory-calibrated for Natural Gas

Johnson Controls V43BS-3 Regulating Valve 322055-301 always use the 350F rolloutThe Johnson Controls V43BS 3 is a 2 inch, heavy duty pressure actuated water regulating valve engineered for precision head pressure control in water cooled condensers. Constructed with a red brass body to withstand high stress environments, this valve is NAVSEA certified, making it the industry standard for naval and marine applications where MIL spec compliance is mandatory. This model features a four hole ASME flanged connection and operates within