Carrier HY84DA024 Terminal Block 321894-706 this is a constant differential

this is a constant differential control

This switch stays open until the red button on the back is physically depressed

Key Benefits Precision Engineering: Designed as a direct OEM replacement to ensure exact fitment and electrical compatibility without field modifications

Is this Fan Guard compatible with other HVAC brands

Pilot-Operated Performance: Delivers high flow rates with a 2 psi minimum operating pressure drop

Carrier HY84DA024 Terminal Block 321894-706 this is a constant differentialThe Carrier HY84DA024 Terminal Block is a high grade OEM replacement part designed for precision electrical routing within commercial HVAC systems and residential air handlers. Engineered to maintain the integrity of low voltage control circuits and high voltage power feeds, this terminal board serves as the centralized connection point for thermostat wiring, fan motors, and system sensors. As a genuine Carrier replacement component, the HY84DA024