RM7895C1020 | Honeywell Flame Safeguard Burner Control 120 V Microprocessor Type
Honeywell · HVAC & Building Controls
Description The Honeywell RM7895C1020 is a microprocessor-based primary burner control for automatically fired gas, oil, or combination-fuel burners. Operating on 120 Vac, it provides full burner management with interrupted pilot operation, flame supervision, and advanced safety sequencing for single-burner industrial applications. Technical Specifications Condition New/Never Used Surplus Brand Honeywell Category Burner Management Systems Part Number RM7895C1020 Subcategory Flame Safeguard Control Voltage 120 Vac (+10%, –15%) Frequency 50 Hz / 60 Hz (±10%) Control Type On-Off Primary with Pre-Purge Pilot Type Interrupted Flame Establishing Period (Pilot) 10 seconds Flame Establishing Period (Main) 10 seconds Ignition Cutout During Pilot Flame Establishing Period Pre-Purge Timing Determined by ST7800A Purge Timer Card Required Components Q7800A/B Subbase, R7847–R7861 Amplifier, ST7800A Card Indicators 5 LEDs for sequence and fault display Memory Type Nonvolatile – retains history and fault data Safety Timing Automatic lockout on flame failure Temperature Range (Storage/Shipping) –40 °F to +140 °F (–40 °C to +60 °C) Vibration Resistance 0.5 G Dimensions (with Subbase) 5 in W × 5 in H × 5¼ in D (Q7800A) / 6 ³⁄₃₂ in D (Q7800B) Approvals UL MP268, CSA LR95329-3, FCC Part 15 Class B, FM & CSD-1 accepted Weight 1 lb 15 oz (0.9 kg) Information About RM7895C1020 The RM7895C1020 belongs to Honeywell’s 7800 Series of Flame Safeguard Controls, designed for reliable burner sequencing, flame detection, and system monitoring. This model functions as an On-Off primary control with pre-purge capability and is compatible with Q7800A/B subbases and ST7800A purge timer cards. It incorporates a solid-state microprocessor that governs all timing, safety interlocks, and diagnostic features while offering both local and remote indication through its LED array. The RM7895C1020 supports interchangeable plug-in flame amplifiers, selectable relight or lockout on flame loss, and nonvolatile memory for retaining fault history. Key Features: Microprocessor Control: Provides precise sequencing, flame supervision, and diagnostics for burner systems. Interrupted Pilot Operation: Controls pilot and main flame establishing periods independently (10 sec each). Selectable Flame Response: Offers relight or safety lockout modes upon loss of flame signal. Integrated LED Display: Five LEDs indicate system status, sequence position, and fault conditions. Pre-Purge Functionality: Pre-purge timing determined by the plug-in ST7800A purge timer card. Interchangeable Flame Amplifiers: Accepts multiple amplifier types for UV, rectification, or infrared sensing. Built-In Safety Logic: Provides ignition cutout during the pilot flame-establishing period for enhanced protection. Diagnostics and Data Retention: Nonvolatile memory stores operational history and status data. Modular Compatibility: Operates with Q7800A/B subbases and optional annunciators, display modules, and interfaces. Industry Certifications: UL recognized, CSA certified, and compliant with FCC Part 15 Class B emissions. The RM7895C1020 delivers the reliability and precision required for industrial burner management systems with automatic sequencing and advanced safety control.
Brand: Honeywell · Category: HVAC & Building Controls
Key features
- Microprocessor Control: Provides precise sequencing, flame supervision, and diagnostics for burner systems.
- Interrupted Pilot Operation: Controls pilot and main flame establishing periods independently (10 sec each).
- Selectable Flame Response: Offers relight or safety lockout modes upon loss of flame signal.
- Integrated LED Display: Five LEDs indicate system status, sequence position, and fault conditions.
- Pre-Purge Functionality: Pre-purge timing determined by the plug-in ST7800A purge timer card.
- Interchangeable Flame Amplifiers: Accepts multiple amplifier types for UV, rectification, or infrared sensing.
- Built-In Safety Logic: Provides ignition cutout during the pilot flame-establishing period for enhanced protection.
- Diagnostics and Data Retention: Nonvolatile memory stores operational history and status data.
- Modular Compatibility: Operates with Q7800A/B subbases and optional annunciators, display modules, and interfaces.
- Industry Certifications: UL recognized, CSA certified, and compliant with FCC Part 15 Class B emissions.
Specifications
| Manufacturer part number | RM7895C1020 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | Burner Management Systems |
| Part Number | RM7895C1020 |
| Subcategory | Flame Safeguard Control |
| Voltage | 120 Vac (+10%, –15%) |
| Frequency | 50 Hz / 60 Hz (±10%) |
| Control Type | On-Off Primary with Pre-Purge |
| Pilot Type | Interrupted |
| Flame Establishing Period (Pilot) | 10 seconds |
| Flame Establishing Period (Main) | 10 seconds |
| Ignition Cutout | During Pilot Flame Establishing Period |
| Pre-Purge Timing | Determined by ST7800A Purge Timer Card |
| Required Components | Q7800A/B Subbase, R7847–R7861 Amplifier, ST7800A Card |
| Indicators | 5 LEDs for sequence and fault display |
| Memory Type | Nonvolatile – retains history and fault data |
| Safety Timing | Automatic lockout on flame failure |
| Temperature Range (Storage/Shipping) | –40 °F to +140 °F (–40 °C to +60 °C) |
| Vibration Resistance | 0.5 G |
| Dimensions (with Subbase) | 5 in W × 5 in H × 5¼ in D (Q7800A) / 6 ³⁄₃₂ in D (Q7800B) |
| Approvals | UL MP268, CSA LR95329-3, FCC Part 15 Class B, FM & CSD-1 accepted |
| Weight | 1 lb 15 oz (0.9 kg) |
| Product type | Flame Safeguard Control |
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