Featuring an 11x10 blower housing configuration

Rated for 50/60Hz

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

The high-alloy steel construction ensures long-term durability and reliable performance during frequent valve adjustments

Bard HVAC AB3000-B Enhanced Alarm Board 321702-401 Featuring an 11x10 blower housingThe 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