Armstrong Fluid Technology 426749-211 Adapter 321894-709 it should not be undersized

it should not be undersized or oversized for the evaporator coil

High-Temperature Durability: The probe is constructed from robust alloys to resist oxidation and carbon buildup

Both units feature the same 8 psi calibration

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

Technicians should test the sensor by measuring resistance across the leads with an ohmmeter and comparing the result to a standard 10K Type II temperature-resistance chart

Armstrong Fluid Technology 426749-211 Adapter 321894-709 it should not be undersizedThe 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