Use a multimeter to check resistance across terminals 1 and 3

Reinforced design prevents paddle deformation under high-velocity flow conditions

A short in the sensor circuit will typically cause the modulation valve to move to a default position (often high fire or low fire depending on the amplifier configuration)

When you are troubleshooting Copper-Fin II series units or A

When replacing a furnace draft inducer switch

Copeland Comfort Control (Alco) 059542 Filter Drier Core 320788-703 Use a multimeter to checkThe Copeland Comfort Control (Alco) 059542 Filter Drier Core (Model H48) is a veteran standard 48 cubic inch desiccant block engineered for critical moisture and acid remediation. This high acid removal filter drier core is specifically designed to handle system cleanups following a compressor burnout or to provide high level protection in industrial refrigeration circuits. Formulated with a specific blend of activated alumina and molecular sieve, the