Honeywell 113228/U Original Industrial Spare UV Compatible

Product Overview

Honeywell 113228/U Original Industrial Spare UV Compatible: Sustaining Combustion System Stability

In industrial facilities where continuous combustion processes underpin production uptime, the integrity of every flame detection component is mission-critical. The Honeywell 113228/U UV Flame Sensor is an original OEM spare part engineered for reliable flame supervision in burner management systems, industrial boilers, process heaters, and high-temperature furnaces. Sourced through authorized supply channels and shipped in original OEM packaging, this sensor delivers the detection accuracy, response speed, and signal consistency that Honeywell combustion control systems demand — making it an indispensable component in any maintenance engineer’s strategic spare parts inventory.

Unplanned combustion system shutdowns carry significant operational, financial, and safety consequences. A failed or degraded UV flame sensor can trigger nuisance trips, prevent burner re-ignition, or — more critically — allow an unsafe condition to go undetected. Stocking the Honeywell 113228/U as a verified, like-for-like replacement ensures your maintenance team can execute a rapid swap during scheduled outages or emergency callouts, restoring system operation without extended downtime, improvised workarounds, or compatibility risk.

Critical Technical Specs

Preventive Maintenance Strategy

A UV flame sensor replacement is rarely an isolated event. In practice, combustion system maintenance engineers treat a sensor swap as the trigger for a broader inspection of the entire burner management circuit — and for good reason. Component aging in combustion environments is rarely uniform; when one element degrades, adjacent components in the same thermal and electrical environment are typically at a similar point in their service life.

When replacing the Honeywell 113228/U, it is best practice to simultaneously inspect the Honeywell R7847A or R7848A flame amplifier module, which processes the UV sensor signal and drives the burner control relay. A degraded amplifier can mask sensor performance issues, produce intermittent flame-proven signals, and lead to repeat callouts that are difficult to diagnose without replacing both components together. The RM7800L or RM7840L burner control module should also be reviewed for fault history, relay contact condition, and terminal integrity — intermittent control faults frequently accompany sensor aging in high-cycle burner applications.

Within the same control cabinet, inspect the Q7800A or Q7800B subbase for terminal corrosion, loose wiring, and secure sensor cable seating. Loose or corroded signal wiring is one of the most common root causes of spurious flame-failure alarms and is easily addressed during a planned outage. The S7800A display module or equivalent operator interface should be verified for accurate fault code logging to confirm the replacement has resolved the underlying trip condition and that no secondary faults are masked.

For facilities operating multiple burner trains, a proactive inventory strategy should also include the Honeywell C7027A or C7035A UV scanner variants used in adjacent burner positions, as well as Y8610U ignition transformers and Q345A pilot assemblies that operate under comparable thermal stress and wear cycles. Maintaining a small buffer stock of flame scanner sight tubes and purge air fittings prevents installation delays caused by fouled or corroded scanner ports — a frequently overlooked consumable in high-temperature combustion environments. Where the burner management system interfaces with a PLC or DCS, verifying the integrity of the digital input module receiving the flame-proven signal ensures the broader control loop remains reliable after the sensor replacement. Facilities with older panel designs should also inspect terminal blocks and DIN rail fuse holders in the burner control circuit, as these low-cost components are a disproportionate source of intermittent faults in aging systems.

Strategic Replacement Solutions

The Honeywell 113228/U is a direct OEM replacement that maintains full compatibility with existing Honeywell burner management wiring, amplifier modules, and control logic — no reconfiguration, re-parameterization, or software changes are required. This plug-and-play compatibility is a decisive advantage over aftermarket alternatives, which may introduce signal timing deviations or require amplifier gain adjustments that extend commissioning time during a shutdown window where every hour carries a cost.

For facilities managing aging combustion systems originally commissioned in the 1990s or 2000s, the 113228/U extends the operational life of the installed burner management infrastructure without requiring a full system upgrade. This is particularly valuable where capital budgets do not support panel replacement but operational safety standards and insurance compliance must be maintained. By sourcing original Honeywell spare parts, maintenance teams avoid the compatibility risks associated with non-OEM sensors and preserve the integrity of the safety interlock documentation required for regulatory and insurance audits.

Procurement teams managing multi-site or multi-burner operations are encouraged to evaluate consolidated purchase quantities. Stocking two to three units per site reduces per-unit cost, eliminates sourcing lead time risk during unplanned outages, and supports a predictable preventive maintenance schedule — replacing sensors on a fixed interval rather than reactively, which is the single most effective strategy for reducing combustion system downtime over a rolling 12-month period.

Support FAQ

Q1: Is the Honeywell 113228/U a direct drop-in replacement for my existing UV flame sensor?
Yes. The 113228/U is an original OEM part designed for direct replacement in compatible Honeywell burner management systems including the RM7800 and R7847 series. No wiring modifications or amplifier reconfiguration are required for a like-for-like substitution in supported controller families.

Q2: What testing and inspection is performed before shipment?
Each unit undergoes functional verification prior to dispatch and is shipped in original OEM packaging with batch traceability documentation. A 12-month warranty covers manufacturing defects and functional failures under normal operating conditions from the date of receipt.

Q3: How do I validate compatibility before installation?
Cross-reference the part number against your burner management system’s wiring diagram and the OEM spare parts list for your specific controller model (e.g., RM7800L, R7847A series). If your system uses a non-standard amplifier variant or a third-party burner control, contact our technical team with your controller model number for confirmation before ordering.

Q4: What is the recommended inventory strategy for this part?
For facilities with a single burner train, a minimum of one spare unit on-site is recommended. For multi-burner installations, facilities with extended supplier lead times, or sites where combustion system downtime carries high production cost, a buffer of two to three units per site is advisable — covering both scheduled maintenance intervals and unplanned failures without impacting production continuity.