Overview
The White-Rodgers 11C45-908 is a direct-immersion hot water control thermostat engineered for commercial and industrial HVAC and refrigeration applications. This limit control device is designed to mount directly in water lines, providing accurate and responsive temperature sensing and switching. With a temperature range of 100–240°F, it offers flexible control across a wide variety of water heating scenarios, from residential water heater systems to larger commercial installations.
Key Features
- Direct-immersion sensing element for accurate water temperature monitoring
- Temperature control range: 100–240°F
- Reliable on/off switching for high-limit protection
- Built for HVAC and refrigeration circuit applications
- Made in the United States
- New in box—never modified or used
Technical Specifications
- Part Number: 11C45-908
- Manufacturer: White-Rodgers Division (Emerson Climate Technologies)
- Product Type: Direct-Immersion Hot Water Control Thermostat
- Temperature Range: 100–240°F
- Sensing Method: Direct immersion in water line
- Application: HVAC and refrigeration systems
- Condition: New in box
- Origin: United States manufactured
Typical Applications
The White-Rodgers 11C45-908 is commonly used in:
- Commercial water heating systems and boiler circuits
- HVAC hot water supply and return line protection
- Refrigeration condenser water temperature control
- Industrial process water temperature limiting
- Replacement for existing direct-immersion thermostat controls
Compatibility & Replacements
Compatible With
- Commercial and industrial water heater systems
- HVAC hydronic heating circuits
- Refrigeration high-limit protection applications
- Direct-immersion thermostat-controlled loops
Replaces / Drop-In Replacement For
The White-Rodgers 11C45-908 is designed as a direct replacement for legacy hot water control thermostats in similar temperature ranges. Verify compatibility with your system integrator or original equipment documentation before ordering.
Works With
- Standard water line connections (immersion wells or direct insertion)
- Industrial and commercial HVAC control systems
- Refrigeration plant temperature monitoring circuits
- Manual reset and automatic reset control schemes








