Armstrong Fluid Technology 426749-211 Adapter 321894-709 The York S1-024-39562-000 Switch is

The York S1-024-39562-000 Switch is a critical safety component designed for high-pressure monitoring in refrigeration systems and HVAC condensing units

Ensure your main air supply is regulated between 18 and 25 psig for optimal 3-15 psi branch response

Both units feature the same 8 psi calibration

Why is my steam gauge reading zero despite the boiler being on

This unit features a 1/8 inch NPT male connection

Armstrong Fluid Technology 426749-211 Adapter 321894-709 The York S1-024-39562-000 Switch isThe Armstrong Fluid Technology 426749 211 Adapter is a critical precision engineered component designed for high performance HVAC pump systems. Constructed from high grade cast iron, this 8 inch pump adapter ensures the permanent alignment of internal rotating parts, specifically fitting 143 184JM motor frames. As the 426749 211 is the direct replacement for 426749 011, it provides a seamless upgrade path for maintaining Armstrong Series 4030 and 4380