Overview
The Honeywell RM7895D1011 is a microprocessor-based primary burner control unit designed for single-burner applications using gas, oil, or combination fuels. Built with safety in mind, this control integrates prepurge, dynamic airflow checking, and advanced diagnostics, making it ideal for industrial and commercial burner systems that demand reliability and compliance.
Key Features
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Burner Sequencing & Flame Supervision — Automatic burner on/off control with interrupted pilot; includes system or self diagnostics.
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Dynamic AirFlow Check — Verifies proper draft or airflow before ignition to ensure safe operation.
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Selectable Interlocks & Delayed Main Valve — Allows for custom safety lockouts and staged fuel flow.
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LED Indicators — Five LEDs display sequence status; helpful for troubleshooting.
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Non-volatile Memory — Retains status, history files, and settings during power outages.
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Modular Options Available — Supports optional modules like PC interface, display, remote annunciation, expanded annunciator, and combination system management software.
| Spec | Value |
|---|---|
| Voltage | 120 Vac (±10/-15%), 50-60 Hz |
| Pilot Type | Interrupted |
| Main Flame Establishing Period | 10 sec |
| Pilot Flame Establishing Period | 4 or 10 sec selectable |
| Dimensions | ~5″ × 5″ × 5¼″ (with Q7800A Subbase), ~6″ with Q7800B Subbase |
| Weight | ~1 lb 15 oz (≈0.9 kg) |
| Certifications | UL Component Recognized (File MP268), CSA Certified (File LR95329-3), FCC Part 15 Class B Emissions |
| Temperature Range | -40°F to +140°F (-40°C to +60°C) |
Applications & Benefits
This burner control is well suited for:
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Industrial and commercial boilers and burners using gas, oil, or mixed fuels
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Systems requiring robust flame monitoring, air flow verification, and automatic safety lockouts
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Installations that need diagnostic capability and historical fault reporting for maintenance
Benefits include enhanced safety, regulatory compliance, fewer false shut-downs, easier troubleshooting, and reduced downtime due to built-in diagnostics and durable construction.
Why Choose Apex Controls
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We’ve served the HVAC & burner control industry since 1990 with genuine OEM parts.
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Swift shipping, and reliable customer support.
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All units are in stock with proper warranty and product support.
Ordering Information & Accessories
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Required Components: Q7800A or B universal wiring subbases; ST7800A purge timer card; compatible flame amplifiers (R7847, R7848, R7849, R7851, R7852, R7861, or R7886).
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Optional Add-ons:
‒ Local or remote annunciators
‒ Remote display module
‒ First-out expanded annunciator
‒ Remote reset module
Compliance & Approvals
UL, CSA, FCC, Swiss RE, Factory Mutual — the RM7895D1011 meets stringent safety and emissions standards essential for reliable burner operation
Frequently Asked Questions
Q: Is this unit compatible with both 50 Hz and 60 Hz systems?
A: Yes — this unit operates within ±10% of both 50 Hz and 60 Hz.
Q: What happens if there is a flame failure?
A: The control supports selectable relight or lockout on flame loss, depending on user-configuration.
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