Description
Honeywell 198799Z Outdoor or Supply Sensor Overview
The Honeywell 198799Z is a precision outdoor or supply temperature sensor designed for reliable, accurate temperature monitoring in hydronic heating and HVAC control applications. Featuring a generous 42″ lead wire, this sensor provides flexible installation options whether mounted outdoors for ambient temperature sensing or inline as a supply sensor in hydronic systems.
Compatibility
The 198799Z is specifically designed for use with the following Honeywell aquastat and control models:
- AQ475 Aquastat Controller
- AQ675 Aquastat Controller
- AQ775 Aquastat Controller
Key Features
- Outdoor or supply temperature sensing capability
- 42″ lead wire for flexible installation reach
- Designed as a direct replacement or accessory sensor for compatible Honeywell aquastats
- Ensures accurate temperature input for optimized system control and efficiency
- Durable construction suited for outdoor and mechanical room environments
Applications
- Outdoor reset control systems
- Hydronic boiler supply temperature sensing
- Residential and light commercial heating systems
Why Choose the Honeywell 198799Z
When paired with compatible AQ-series aquastats, the 198799Z delivers the precise temperature data needed for efficient outdoor reset and supply temperature control strategies — helping reduce energy consumption and extend equipment life. Its plug-and-play compatibility with Honeywell AQ475, AQ675, and AQ775 controls makes it a straightforward, reliable replacement or upgrade sensor for hydronic heating professionals.
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