Resideo MARD-6 Damper 319825-402 This single-pole single-throw (SPST) switch

This single-pole single-throw (SPST) switch is factory-calibrated for an activation pressure of 0

The Johnson Controls A19ADB-22 Utility Thermostat is a professional-grade remote bulb temperature control designed specifically for demanding industrial and commercial applications requiring a dependable manual reset

The Carrier CRHEATER105A00 Electric Heat Kit is a field-installed accessory designed for seamless integration with 3-phase commercial rooftop units and select air handlers

it features a SPDT relay output (up to 240 volts at 10 amps) and a high-temperature LCD display for real-time HVAC system diagnostics

Resideo MARD-6 Damper 319825-402 This single-pole single-throw (SPST) switchThe Resideo MARD 6 is a heavy duty 6 inch modulating automatic round damper designed for high performance bypass control and zoning applications. Constructed from 22 gauge galvanized steel, this unit is built to manage the higher static pressures common in larger residential and light commercial systems, particularly those exceeding 5 tons. The integrated three wire floating actuator provides 90 second timing from open to closed, delivering granular