How does the Hawk integrate burner management and combustion control?

The Hawk consolidates three previously separate subsystems — programmable logic controller, burner management controller, and ancillary boiler controls — into a single touch-screen platform. It sequences the burner through standby, pre-purge, pilot flame establishing, main flame establishing, run, and post-purge while simultaneously executing full-modulating PID control of fuel and combustion air. Fuel-air ratio control supports single-point modulating, parallel positioning with motor actuators, or full metered cross-limited control depending on the tier.

What distinguishes the ICS, 4000, and 4500 tiers?

Hawk ICS targets firetube and commercial watertube boilers with Base, Intermediate, and Advanced packages escalating in HMI size (6″ to 10″) and feature set. Hawk 4000 adds Honeywell CB780E burner management for industrial firetube and watertube applications. Hawk 4500 is the top tier for industrial watertube boilers — adding full metering control, economizer monitoring and control, and combustion draft control for new installations and retrofits alike.

How does Hawk lead/lag control coordinate multiple boilers?

Built-in lead/lag handles two boilers natively. An optional Master Panel extends this to eight boilers via Ethernet/IP communication, managing header pressure or temperature, automatic rotation sequencing, and coordinated firing-rate modulation. The system balances runtime hours across the boiler plant to equalize wear while maintaining the header setpoint.