Carrier HK06MB021 Dual Pressure Switch

The Carrier HK06MB021 Dual Pressure Switch is an essential element of HVAC system equipment. It operates by monitoring and controlling two necessary pressure levels within the system, high pressure and low pressure. The switch is provided with two distinct pressure sensors, each of which has a separate setpoint. When the system pressure rises above the high-pressure setpoint, the switch sends a signal, usually to a control unit, to execute a safety shutdown or other protective action. On the other hand, if the system pressure falls below the low-pressure setpoint, the switch informs the control unit to take corrective measures including a start up of a compressor or sounding an alarm.