Technical Overview
The Honeywell R7120M1001 functions as a microprocessor-based integrated burner control for automatically fired single-burner applications. This relay module provides automatic burner sequencing and comprehensive flame supervision for gas, oil, or combination fuel systems. It serves as a plug-in replacement for Fireye M series controls while utilizing the existing Fireye wiring subbase. The module requires an ST7800 Purge Timer and an appropriate R78XX Amplifier to complete the replacement configuration.
The control integrates self-diagnostics and troubleshooting capabilities, thereby simplifying maintenance and reducing downtime. It delivers system status indication through LED indicators, allowing operators to quickly assess operational conditions. The module also supports programmable postpurge timing using the S7800A1142 Keyboard Display Module, which enhances flexibility in system configuration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Honeywell |
| Model Number | R7120M1001 |
| Product Type | Programmer Burner Control / Relay Module |
| Voltage | 120 Vac (+10/-15%) |
| Frequency | 50/60 Hz (± 10%) |
| Maximum Connected Load | 2000 VA |
| Fuse Rating | 15A Fast Blow, type SC or equivalent |
| Operating Temperature | -40°F to +140°F (-40°C to +60°C) |
| Storage Temperature | -40°F to +150°F (-40°C to +66°C) |
| Humidity Rating | 85% RH continuous, noncondensing |
| Mounting Type | Panel mount with adapter plate for Fireye subbase |
| Country of Origin | USA |
Key Features
Microprocessor-Based Design – The advanced processor enables precise timing sequences and reliable flame monitoring for demanding combustion applications.
Fireye M Series Compatibility – This module directly replaces M series controls, thus simplifying upgrades without rewiring the existing subbase.
Comprehensive Diagnostics – The built-in self-diagnostics and troubleshooting functions help identify issues quickly, reducing system downtime.
Programmable Postpurge – Using the optional S7800A1142 Keyboard Display Module, users can configure postpurge timing for the combustion fan.
Rugged Construction – The module withstands extreme temperatures from -40°C to +60°C, making it suitable for harsh industrial environments.
Required Components
The Honeywell R7120M1001 requires several separate components to complete the system: an ST7800 Purge Timer for purge timing control, an R78XX Series Flame Amplifier for flame signal processing, and a compatible flame detector for flame supervision. Additionally, the S7800A1142 Keyboard Display Module enables setup and configuration of advanced features.
Applications
This burner control excels in industrial heating applications, including boilers, furnaces, ovens, and process heaters. It performs reliably in power generation facilities, chemical processing plants, and manufacturing environments where precise flame supervision is critical for safety and efficiency.
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 85 × 65 × 30 mm |
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