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Honeywell 7800 Series RM7890D1004

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RM7890D1004

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The RM7890D1004 from Honeywell is a microprocessor-based burner control module that provides efficient on-off primary control for burner systems. This unit weighs 1.83 lbs and features selectable pilot flame establishing durations to accommodate various applications.

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Technical specifications for RM7890D1004

ManufacturerHoneywell
Product TypeMicroprocessor-Based Burner Control Module
Product Line7800 Series
Part NumberRM7890D1004
Control TypeOn-Off primary control
Pilot TypeIntermittent
Main Flame Establishing PeriodIntermittent
Pilot Flame Establishing PeriodSelectable at 15 seconds or 30 seconds
Flame Sensor CompatibilityInfrared (IR) heater applications and flame rod sensor applications only
InterlocksLockout and running interlocks
Status Indication5 LED indicators
Memory TypeNonvolatile memory
Relight BehaviorSelectable relight or lockout option for loss of flame
Voltage Rating120 V AC
Input Voltage Frequency50/60 Hz
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Honeywell's RM7890D1004 is a sophisticated microprocessor-based burner control module designed for optimized performance in burner operations. With a weight of 1.83 lbs, this compact unit manages on-off primary control effectively. It supports an intermittent pilot type, where the main flame establishing period follows an intermittent pattern. Notably, the pilot flame establishing period can be adjusted, allowing for durations of either 15 seconds or 30 seconds based on specific requirements.

This control module is tailored for compatibility with infrared heater and flame rod sensor applications, making it versatile for various uses. Safety is enhanced with built-in lockout and running interlocks to prevent unsafe operation. Users can easily monitor the module's status via five integrated LED indicators, which provide clear visual feedback.

In terms of memory, the RM7890D1004 is equipped with nonvolatile memory, ensuring reliable retention of essential data even when power is lost. If a flame is lost, users can configure relight behavior to either attempt a relight or initiate a lockout, providing further control over operation. This device operates at a voltage of 120 volts AC and supports input frequency of 50/60 Hz, making it suitable for a range of industrial environments.