the V47AA-2 provides proportional response to thermal fluctuations

5-inch diameter footprint to maximize CFM while minimizing acoustic output and energy consumption

high-efficiency 240v ECM motor engineered for precise airflow management in specific residential and light commercial air handlers and furnaces

Precision Timing: Microprocessor control ensures consistent 4-second ignition timing and eliminates mechanical drift found in older controllers

the unit enters a safety lockout mode to prevent gas accumulation

Bard HVAC AB3000-B Enhanced Alarm Board 321702-401 the V47AA-2 provides proportional responseThe Bard HVAC AB3000 B Enhanced Alarm Board is a critical field installed OEM component designed for legacy and modern Bard wall mount units. As a direct Bard replacement part, this board provides a sophisticated interface for HVAC system diagnostics, allowing technicians to monitor dry contact alarm outputs for high pressure, low pressure, and lockout conditions. This enhanced alarm board is essential for remote monitoring applications where real