Description
Siemens Building Technology 134-1504 Overview
The Siemens Building Technology 134-1504 is a commercial-grade thermostat engineered for dependable temperature switching in demanding HVAC and building automation applications. Featuring a Double Pole Single Throw (DPST) switching configuration with manual reset functionality, this unit provides precise, fail-safe control at critical temperature thresholds.
Key Features
- 4-Wire design for straightforward field wiring and integration
- 2-Circuit switching capability for versatile system control
- Fixed setpoints at 15°F and 55°F to cover freeze protection and low-temperature safety applications
- Manual Reset (M/R) operation ensures the system does not automatically restart after a fault condition — requiring deliberate operator intervention
- DPST (Double Pole Single Throw) contact configuration for simultaneous switching of two conductors
- Built to Siemens Building Technology quality standards for long-term reliability in commercial and industrial HVAC environments
Typical Applications
- Freeze protection and low-limit safety control in air handling units (AHUs)
- Low-temperature lockout protection for commercial HVAC systems
- Building automation and BAS integration requiring manual reset after fault
- Fan coil units and ventilation systems requiring dual-circuit temperature switching
Why Choose the Siemens 134-1504
The manual reset feature is a critical safety design element — once the thermostat trips at its low-temperature setpoint, the system remains locked out until a technician manually resets the device. This prevents equipment from cycling back on under potentially damaging conditions, protecting coils, ductwork, and connected equipment from freeze damage or unsafe operation.
Reviews
There are no reviews yet.