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RM7840G1022
The Honeywell RM7840G1022 is a compact microprocessor-based burner control unit designed for various heating applications. It operates efficiently at 120 VAC and can handle both 50 Hz and 60 Hz input frequencies, making it versatile for different configurations. Despite its lightweight structure of 1.81 lbs, it operates within a wide temperature range.
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Technical specifications for RM7840G1022
| Manufacturer | Honeywell |
|---|---|
| Product Type | Microprocessor-based integrated burner control unit |
| Product Line | 7800 Series |
| Part Number | RM7840G1022 |
| Voltage Rating | 120 VAC |
| Input Voltage Frequency | 50/60 Hz |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | 60°C |
| Minimum Storage Temperature | -40°C |
| Maximum Storage Temperature | 66°C |
| Humidity Range | 85% RH (non-condensing) |
| Power Dissipation | 10 W maximum |
| Maximum Total Connected Load | 2000 VA |
| Fusing | 15A max. with Type SC or equivalent fast-blow fuse |
| Vibration Rating | 0.5G environment |
| Flame Failure Response Time | 0.8 or 3 seconds (depending on amplifier) |
| Mounting Type | Plug-in module on Q7800A/Q7800B wiring subbase |
The RM7840G1022 unit from Honeywell's 7800 Series is engineered as a microprocessor-based integrated burner control device. With a weighing of 1.81 lbs, it offers efficient control at a voltage rating of 120 VAC. This control unit supports both 50/60 Hz input voltage frequencies, allowing it to adapt to various electrical systems.
Operating conditions for this model allow temperatures as low as -40°C and as high as 60°C, ensuring reliability in extreme environments. When stored, the unit can tolerate temperatures down to -40°C and can be kept at 66°C maximum. The device is also rated to handle relative humidity levels as high as 85% without condensation.
Maximum power dissipation for the RM7840G1022 is limited to 10 watts, and it can support a total connected load of up to 2000 VA for maintaining efficiency across various setups. For protection, fusing is rated at 15A with a Type SC or equivalent fast-blow fuse. The control unit is designed to withstand a vibration rating of 0.5G, which enhances its durability in fluctuating conditions.
An important feature of the RM7840G1022 is its flame failure response time, which can be set for either 0.8 or 3 seconds, depending on the connected amplifier. This capability allows for responsive system adjustments in the event of flame detection failure. The unit is designed for easy installation as a plug-in module on Q7800A or Q7800B wiring subbases, facilitating quick and secure setups.
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