Optimized Combustion: The #33 NAT orifice rating ensures precise gas metering to meet the manufacturer’s specified firing rate

This valve is built for intermittent pilot and direct spark setups

this replacement solenoid coil ensures consistent cycle rates and peak electrical efficiency

Reliable Actuation: 24Vac Class F coil provides responsive performance for 2-way normally closed logic

which minimizes hysteresis and prevents binding during high-cycle operation

Bard 8620-104 Relay Kit 320819-301 Optimized Combustion: The #33 NATWhen you're on a job and need to ensure reliable defrost cycles for Bard HVAC equipment, the Bard 8620 104 Relay Kit is your go to OEM component. This 24V defrost relay is engineered specifically for seamless integration into single phase systems, functioning as a critical part of your panel accessories. It's designed to manage the defrost sequence, preventing ice buildup and maintaining optimal system efficiency. As an official Bard HVAC OEM part,