Description
The Reznor 177233 F50-15 Frost Stat is a purpose-built freeze protection thermostat designed to safeguard HVAC equipment, heating units, and building systems from the damaging effects of low ambient temperatures. As a genuine Reznor OEM replacement component, it integrates seamlessly into compatible Reznor heating systems to provide dependable low-temperature detection and automatic protective response.
Product Overview
Frost stats — also known as freeze stats or low-limit thermostats — are critical safety devices that monitor ambient or discharge air temperatures and trigger a protective shutdown or alarm when temperatures drop to a potentially damaging threshold. The F50-15 designation indicates this unit is engineered to respond at a freeze-protection setpoint, helping prevent coil freeze-up, pipe damage, and equipment failure during cold weather conditions.
Key Features
- Genuine Reznor OEM replacement frost stat for compatible heating units
- Designed for freeze protection and low-temperature limit control
- Automatically responds to dangerously low temperatures to protect HVAC equipment
- Helps prevent coil freeze-up, water pipe damage, and system failures
- Direct OEM replacement ensures proper fit and reliable performance
- Suitable for use in commercial and industrial heating applications
Application
The Reznor 177233 F50-15 Frost Stat is ideal for use in unit heaters, make-up air units, and other Reznor heating equipment where freeze protection is required. It is commonly installed in applications where outdoor air is introduced into the system, such as ventilation units in cold climates, to prevent coil or heat exchanger damage during low-temperature conditions.
Why Choose a Genuine Reznor OEM Part?
- Ensures compatibility with Reznor equipment and control systems
- Maintains original equipment warranty and performance standards
- Reduces risk of improper fit or premature failure associated with aftermarket substitutes
- Backed by Reznor’s reputation for quality commercial heating solutions







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