HTS KS – Relay Module PFR 704
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Overview
The Honeywell PFR 704 is a relay module designed as an accessory for the PFU series burner management units. It provides additional relay output switching capability, allowing the PFU system to control a wider range of burner-related actuators and safety circuits in industrial and commercial combustion applications.
The PFR 704 is part of the PFx 7xx accessory family and is designed to integrate directly with compatible PFU base units, extending output capacity without requiring additional standalone control hardware.
Features & Benefits
- Relay module accessory designed for direct use with PFU burner management units — expands output switching capability
- Part of the PFx 7xx accessory family — ensures compatibility within the Honeywell PFU system architecture
- Compact design supports integration into existing burner control panels without major modifications
- Documented for use under AGA Standard requirements — see PFx 7xx (AGA Standard) certificate
- CE conformity declaration available — supports compliance documentation requirements
Technical Specifications
- Type: Relay output expansion module
- Compatible base units: PFU series burner management systems
- Product family: PFx 7xx accessory series
- Refer to PFP 700, PFR 704 operating instructions for full electrical ratings, wiring, and installation specifications
Applications
- Industrial and commercial burner management systems using PFU base units
- Combustion systems requiring expanded relay output switching
- Applications requiring AGA Standard-compliant burner control accessories
- Boilers, process heaters, and industrial furnaces controlled by PFU series units
PFR 704 Accessories
- PFP 700 – Pilot burner relay module; companion accessory in the PFx 7xx family for PFU burner management systems
