Honeywell On-Off Primary Control With Prepurge - RM7895B1013/U

The Honeywell On-Off Primary Control with Prepurge is a 120 VAC, 50/60 Hz controller, adeptly crafted for an intermittent pilot type setup, and suited for an intermittent main flame establishing period. It aligns harmoniously with 7800 Series Amplifiers and functions with a pilot flame establishing period of either 4 seconds or 10 seconds.

Additionally, this control unit is outfitted with a host of meticulously designed functionalities, including automatic burner sequencing, flame supervision, system status indication, plus system or self diagnostics and troubleshooting. Its operation is reliant on a subbase, amplifier, and prepurge timer, enhancing its versatility and adaptability.

The control with prepurge also boasts various optional elements such as a Modbus interface, keyboard display module, remote display module, and first-out expanded annunciator, escalating its proficiency in catering to a range of industrial requirements. It integrates five LEDs that provide valuable sequence information, and interchangeable plug-in amplifiers, allowing a higher level of customization and optimization.

Further enhancing its user-friendly appeal, this unit facilitates local or remote annunciation of operation and fault information through the optional S7800 Keyboard Display Module. It is engineered with a non-volatile memory that retains history files and lockout status even after a power loss. There is a provision to select relight or lockout on loss of flame, and it incorporates a dynamic airflow switch check.

In terms of technical specifications, the unit is designed for on-off primary control with prepurge application, and it performs proficiently under operating conditions from -40 F to 140 F, becoming a reliable choice for various industrial environments.