Carrier 4662 Scale Control 319825-402 Broad Compatibility: Fully compatible with

Broad Compatibility: Fully compatible with Johnson Controls System 450

Featuring a robust lever acting design

airtight seal to optimize boiler combustion efficiency and fuel ratios

If you measure 24V at the solenoid but get no downstream manifold pressure

As a direct-fit replacement for heavy-duty industrial air handling applications

Carrier 4662 Scale Control 319825-402 Broad Compatibility: Fully compatible withThe Carrier 4662 Scale Control insert is a critical engineering component designed to mitigate mineral accumulation within Carrier humidifier systems. This genuine OEM replacement part is specifically engineered to fit into the water distribution tray, where it serves as a primary catchment for calcium, lime, and other dissolved solids found in both hard and soft water supplies. By capturing these minerals before they can reach the evaporative pad or