Common causes include cracked porcelain insulators

Does this unit require me to drain the hydronic system

the 00-13192-03 is the official direct replacement for the PDA-510

For service technicians requiring a reliable intermittent pilot ignition control

Designed to monitor the integrity of the ventilation system

Johnson Controls P70DA-63 Pressure Control Freon Common causes include cracked porcelainThe Johnson Controls P70DA 63 is a purpose built ammonia pressure control designed for heavy duty industrial refrigeration. This single pole pressure control features an Open High switch action, effectively serving as a high limit safety cutout for systems utilizing ammonia refrigerant. With a versatile 20 to 100 psi adjustable range, it provides reliable protection against overpressure conditions that could compromise system integrity. Unlike