Siemens Building Technology 192-223 Stat

The Siemens 192-223 is an industrial-grade pneumatic room thermostat engineered for high-accuracy climate control in commercial buildings. This reverse acting pneumatic thermostat features a single setpoint with a Celsius scale ranging from 7/30C, making it ideal for managing 2-pipe high air capacity systems. Utilizing a highly sensitive bi-metal sensing element, the Siemens Powerstar 192S provides a proportional output signal to modulate pneumatic valves and damper actuators with precision. Designed for professional HVAC pneumatic controls, it includes field-adjustable sensitivity (1 to 4 psi/°F) and integral limit stops to prevent setpoint tampering. The unit is factory-calibrated at 22°C with a 7.5 psi control pressure, ensuring immediate integration into existing pneumatic HVAC systems. Its rugged chassis supports 5/32-inch OD plastic tubing and features a dedicated control pressure test port, allowing technicians to verify output without removing the desert beige Cycolac cover.

• Efficient 2-Pipe High Capacity: Features an integral air capacity relay for simultaneous control of multiple pneumatic actuators and valves.
• Precision Calibration: Sensitive bimetal element responds quickly to 0.1°F temperature shifts for stable environmental control.
• Simplified Maintenance: Includes a front-accessible test port and easily replaceable filters and restrictor plates.
• Customizable Performance: Field-adjustable sensitivity and setpoint limit stops allow for site-specific optimization.

Is the Siemens 192-223 compatible with one-pipe systems?
No, this specific model is a two-pipe, high-capacity thermostat. For one-pipe low-volume applications, a different 192-series chassis is required.

How do I verify the output pressure during commissioning?
Use the integrated needle-probe test port located under the cover to measure control pressure without disconnecting the air lines.

Can this thermostat be used for both heating and cooling?
Yes, as a reverse acting controller, it increases output pressure as temperature decreases, typically used for heating or specific cooling sequences depending on your actuator setup.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.