Velocity Boiler Works (Crown) 433022 Control 326058-756 What is the difference between

What is the difference between direct-acting and reverse-acting models

For dead-end or liquid service

eliminating the need for separate transformers in the field

Rugged Construction: Features a durable aluminum housing designed to withstand the environmental stresses of rooftop and outdoor air handling units

and RACINE series models

Velocity Boiler Works (Crown) 433022 Control 326058-756 What is the difference betweenThe Velocity Boiler Works 433022 Phantom Boiler Programmed Control is a critical OEM boiler replacement part engineered specifically for the Crown Phantom hydronic heating platform. This direct spark ignition control manages the complex modulation and sequencing required for high efficiency condensing boilers, ensuring precise burner operation logic and stable combustion. As a genuine boiler control module, it integrates seamlessly with existing