this valve features an A-port equal percentage characteristic for linear heat output and a modified B-port to ensure constant common port flow

the 100208442 is identical to RLV2001 and serves as a direct OEM replacement relief valve for several high-capacity units

and locknuts during teardown and reuse or replace hardware as per the unit's original technical manual

and FV4 series air handlers

Carrier HK28ZT001 Control 322027-701 this valve features an A-portThe Carrier HK28ZT001 Control is a critical microprocessor based smoke detector control module specifically engineered for integration within commercial and residential HVAC systems. Designed to facilitate high reliability fire safety, this wired control unit continuously analyzes air samples through a photoelectric smoke sensor interface to trigger immediate unit shutdown during an alarm event, preventing the hazardous circulation of toxic gases