Description
The Mars 33475 is a precision temperature-actuated thermostat engineered for freeze protection and low-temperature control in HVAC and refrigeration applications. With an open setpoint of 40°F (Op40) and a close setpoint of 20°F (Cl20), this thermostat provides dependable switching action to safeguard equipment and coils from freeze damage.
Key Features
- Opens at 40°F (Op40) to trigger protective action before freezing conditions occur
- Closes at 20°F (Cl20) for automatic reset once safe temperatures are restored
- Designed for freeze protection and low-limit temperature control
- Reliable switching performance for residential and light commercial HVAC systems
- Mars quality construction for long service life in demanding environments
Typical Applications
- Freeze stats on air handling units and coils
- Low-limit temperature protection in ductwork and air systems
- Refrigeration and cooling system freeze protection
- OEM and field replacement in HVAC control circuits
Why Choose the Mars 33475?
Mars has built a trusted reputation in the HVAC industry for delivering reliable controls and electrical components. The 33475 thermostat is a straightforward, dependable solution for protecting your HVAC equipment against freeze damage — an essential safeguard in cold climates or any system where low ambient temperatures pose a risk to coils and piping.
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