Description
The Weil McLain 383-500-126 is a genuine OEM outdoor temperature sensor designed for use with compatible Weil McLain boiler control systems. By continuously monitoring outdoor ambient temperatures, this sensor enables the boiler control to automatically adjust water temperature output — a process known as outdoor reset — helping to maximize system efficiency, improve comfort, and reduce fuel consumption.
Key Features
- Genuine Weil McLain OEM replacement outdoor sensor
- Designed for outdoor ambient temperature monitoring
- Enables outdoor reset functionality for compatible Weil McLain boiler controls
- Helps optimize boiler water temperature based on real-time outdoor conditions
- Supports improved system efficiency and reduced energy costs
- Direct OEM replacement for reliable, long-term performance
Application
This outdoor sensor is intended for installation on an exterior wall of the building, away from direct sunlight, exhaust vents, and other heat sources, to ensure accurate ambient temperature readings. It integrates seamlessly with Weil McLain boiler control systems that support outdoor reset, allowing the system to modulate heating output in response to changing weather conditions.
Why Outdoor Reset Matters
Outdoor reset control is one of the most effective strategies for improving hydronic heating efficiency. When outdoor temperatures rise, less heat is needed indoors. The outdoor sensor signals the boiler control to lower supply water temperature accordingly, reducing cycling, minimizing standby losses, and extending equipment life.
Product Details
- Brand: Weil McLain
- Part Number: 383-500-126
- Type: Outdoor Temperature Sensor
- Application: Hydronic boiler systems with outdoor reset control
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