Honeywell 34886A Sun Shield

As an experienced HVAC tech, you know that keeping a remote bulb sensor exposed to direct thermal radiation is a shortcut to inaccurate cycling and premature system wear. The Honeywell 34886A Sun Shield is the professional standard for protecting Honeywell remote bulb controllers and sensors from intense UV exposure and solar gain. This heavy-duty outdoor temperature sensor shield acts as a dedicated thermal barrier, ensuring your T475, T991B, T678B, and T675A series controllers maintain high-precision accuracy even in extreme rooftop or south-facing installations. By mitigating the "greenhouse effect" on the sensing element, this 34886A sunshield prevents false high-temp readings that cause cooling systems to overwork or heating systems to under-perform. Its rugged, industrial construction is purpose-built to withstand environmental fatigue while providing the airflow necessary for responsive temperature tracking. For any commercial HVAC controller installation where the remote bulb is mounted externally, installing this weather-resistant bulb shield is the critical final step for a reliable, professional-grade setup.

• Universal Compatibility: Specifically engineered for seamless integration with Honeywell T675A, T678B, T991B, and T475 series remote bulb controllers.
• Extreme Accuracy: Prevents solar loading from distorting temperature data, allowing for tighter deadbands and more efficient staging.
• Industrial Durability: Solid metal construction designed to shield sensitive copper bulbs from direct rain, debris, and UV-induced degradation.
• Simplified Installation: Quick-mount design fits directly into standard outdoor layouts without internal sensor modifications.

• Will this shield fit other sensor brands? While designed specifically for the Honeywell 34886A footprint and T-series bulbs, it can often be adapted for other capillary-style sensors with a similar bulb diameter.
• Does it restrict airflow to the bulb? No, the geometry is designed to provide maximum solar shading while allowing sufficient natural convection for accurate ambient air sensing.
• Is this required for shaded installations? We recommend it for all outdoor bulb placements to protect against reflected heat and shifting sun patterns throughout the seasons.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.