provided the ambient temp stays within specified limits

Engineered for heavy-duty furnace and air handler applications

60" WC switch to ensure the heater operates within its designed airflow parameters

sizing this valve to at least 25% above the maximum operating pressure is recommended to prevent premature discharge and ensure system integrity

including high-efficiency heat pumps and dual fuel units

Advanced Distributor Products 76716400 Limit Switch 320734-701 provided the ambient temp staysThe Advanced Distributor Products 76716400 Limit Switch is a critical safety component designed for precision temperature monitoring within high performance HVAC systems. As an authentic ADP OEM replacement part, this electromechanical device serves as a primary safeguard, preventing internal overheating by monitoring the supply plenum's thermal conditions. When temperatures exceed factory set safety thresholds, the 76716400 high limit switch