Johnson Controls A28AA-28 Temperature Control Freon this switch facilitates accurate airflow

this switch facilitates accurate airflow verification by detecting differential pressure across the heat exchanger or vent system

Can this relay replace a single-pole heat relay

if the internal baffles are restricted or if an air leak is preventing the induced-draft motor from closing the pressure switch

Exact Alignment: Maintains the critical spacing between the blower motor shaft and the wheel for optimal CFM delivery

this sensing element is essential for systems requiring thermal regulation without external power

Johnson Controls A28AA-28 Temperature Control Freon this switch facilitates accurate airflowTemperature Control, Two Stage, 2 SPDT Switch Action, 120 208 240 277 Vac, 30 110 Degree Setpoint Range, 3 1 2 Degree Differential Each Stage, 2 7 Degree Adjustable Differential Between Stages, 12' Averaging Bulb, 6' Capillary Length, Screwdriver Range Adjuster