RM7838B2021

The Honeywell part RM7838B2021 belongs to the 7800 Series and serves as an efficient microprocessor-based integrated burner control unit. This compact device weighs 2.8 lbs and operates with an input voltage of 120 VAC, making it suitable for a wide range of applications where reliable burner operation is crucial. It is designed to work with input frequencies of either 50 or 60 Hz, enhancing its adaptability.

With impressive specifications, the RM7838B2021 has a minimum operational temperature rating of -40°C, enabling it to perform effectively in extreme conditions. The unit can withstand a maximum operating temperature of 60°C. For storage, it can handle temperatures as low as -40°C and up to 66°C, ensuring safe handling and longevity. Its design accommodates a humidity level of up to 85% RH without condensation, a feature vital for operational reliability.

The burner control unit dissipates a maximum power of 10 W and manages a total connected load of 2000 VA. Fusing requirements specify a 15A maximum, employing a Type SC or equivalent fast-blow fuse for enhanced safety. The pilot flame establishing period can be set for 4 or 10 seconds, while the main flame establishment period defaults to 10 seconds or intermittent, allowing flexibility in startup procedures.

Installation is achieved via a plug-in module compatible with the Q7800A2005/Q7800B2003 wiring subbases from the 2000 Series, facilitating straightforward integration into existing configurations. This control unit is designed to provide the necessary functionalities for efficient burner management in various industrial settings, maximizing performance without compromising safety.