R4795A 1008 | Honeywell Boiler FSG Programming Relay

Honeywell · Relays, Contactors & Switches

Description  The Honeywell R4795A 1008 is a flame safeguard programming relay designed for use in gas, oil, and coal-fired burner systems. Operating at 120V, 50/60 Hz, this solid-state control module ensures reliable burner management through integrated safety features, flame detection compatibility, and configurable prepurge timing.     Technical Specifications  Condition New/Never Used Surplus Brand Honeywell Category Flame Safety Products Part Number R4795A 1008 Subcategory Flame Safety Accessory Voltage 120V Frequency 50/60 Hz Compatible Fuels Gas, Oil, Coal Flame Detection Type UV or Rectification (via plug-in amplifier) Prepurge Timing Variable (with plug-in timer card) Flame Failure Response Recycle through prepurge or lockout if pilot not established Alarm Contacts None Operating Temperature -20°F to +125°F (-29°C to +52°C) Electrical Connection Mounting Screws Mounting Base Thermoplastic (Q270-style subbase) Weight 2.00 lbs       Information About R4795A 1008 The R4795A 1008 is part of Honeywell’s Flame Safeguard (FSG) series and functions as a primary burner control for commercial and industrial boiler applications. It supports either electronic rectification or ultraviolet flame detection when used with the appropriate color-coded plug-in amplifier. The control performs a safe-start check to prevent startup in unsafe flame conditions and will lock out the system if a flame is not established during pilot trial. It also automatically recycles through a prepurge sequence if the flame signal is lost while in run. This model allows for variable prepurge durations through plug-in purge timers and offers built-in protection against ignition crossover in flame rod systems. With a rugged thermoplastic base and captive mounting screws, it is easy to install and service. The R4795A1008 weighs approximately 2.00 lbs and is rated for ambient temperatures from -20°F to +125°F (-29°C to +52°C). Key Features: Flexible Flame Detection: Supports UV or rectification detection with plug-in amplifiers. Variable Prepurge: Adjustable timing with plug-in purge timer cards. Automatic Recycle: Returns to prepurge if flame is lost during operation. Safe-Start Logic: Prevents startup when unsafe flame conditions are detected. Solid-State Reliability: Durable electronics ensure stable performance over time. No Alarm Contacts: Streamlined model for systems not requiring external alert circuits. Easy Installation: Captive screws and thermoplastic subbase simplify mounting and replacement. The R4795A 1008 offers dependable flame supervision and burner control with flexible configuration and safety protections.

Brand: Honeywell · Category: Relays, Contactors & Switches

Key features

• Flexible Flame Detection: Supports UV or rectification detection with plug-in amplifiers.
• Variable Prepurge: Adjustable timing with plug-in purge timer cards.
• Automatic Recycle: Returns to prepurge if flame is lost during operation.
• Safe-Start Logic: Prevents startup when unsafe flame conditions are detected.
• Solid-State Reliability: Durable electronics ensure stable performance over time.
• No Alarm Contacts: Streamlined model for systems not requiring external alert circuits.
• Easy Installation: Captive screws and thermoplastic subbase simplify mounting and replacement.

Specifications

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