Siemens Building Technology 192-204 Tstat
The Siemens 192-204 Pneumatic Thermostat is a technician-grade dual setpoint room thermostat designed for heavy-duty commercial and institutional HVAC systems. Engineered for day/night control, this direct acting (DA) chassis maintains precise temperature regulation by utilizing highly responsive bi-metal sensing elements. This 192 DN Powerstar series model is optimized for two-pipe pneumatic systems, allowing for high air output capacity to drive multiple pneumatic valves or damper actuators simultaneously.
Operating on a standard 18 psi to 25 psi supply air pressure, the 192-204 features a dual-dial setpoint range of 45°F to 85°F. Contractors will appreciate the field-adjustable sensitivity (graduated from 1 to 4 psi/°F) and integral limit stops, which prevent unauthorized temperature adjustments and ensure system efficiency. The unit includes a manual override selector switch, enabling local "day" mode control during the night cycle. This Powers Controls chassis is built for durability and ease of maintenance, featuring an accessible output test port for quick pressure verification without removing the desert beige Cycolac cover.
Key Benefits for HVAC Professionals
- Optimized Energy Management: Automatic day-to-night setback switching based on supply air pressure changes (18/25 psi) reduces utility costs during unoccupied hours.
- High Output Capacity: The two-pipe relay design provides the volume required for large-scale institutional air handling and terminal units.
- Precise Calibration: Features factory-standard 2.5 psi/°F sensitivity and bi-metal elements that respond to changes as small as 0.1°F.
- Retrofit Ready: The included universal wall plate and 5/32" barbed fittings simplify replacements of legacy pneumatic controllers.
- Advanced Diagnostics: Front-facing test ports allow for immediate troubleshooting of the control air signal to ensure dampers and valves are modulating correctly.
Common Questions About the 192-204
Is the Siemens 192-204 compatible with one-pipe or two-pipe systems?
This specific model is a two-pipe high-capacity thermostat. While the 192 series includes various configurations, the 192-204 is optimized for two-pipe applications where high air volume is needed to move pneumatic actuators.
How do I switch this thermostat between day and night modes?
The mode change is typically handled automatically by the pneumatic control system changing the main supply air pressure. However, this model features a manual override switch on the side that allows occupants to temporarily return to the "day" setpoint during night cycles.
Can I adjust the sensitivity on this pneumatic thermostat?
Yes, the 192-204 has a graduated sensitivity adjustment screw located on the chassis, allowing you to fine-tune the output between 1 and 4 psi per degree of temperature change to match the requirements of your specific dampers or valves.
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.
Original: $242.12
-65%$242.12
$84.74Siemens Building Technology 192-204 Tstat
The Siemens 192-204 Pneumatic Thermostat is a technician-grade dual setpoint room thermostat designed for heavy-duty commercial and institutional HVAC systems. Engineered for day/night control, this direct acting (DA) chassis maintains precise temperature regulation by utilizing highly responsive bi-metal sensing elements. This 192 DN Powerstar series model is optimized for two-pipe pneumatic systems, allowing for high air output capacity to drive multiple pneumatic valves or damper actuators simultaneously.
Operating on a standard 18 psi to 25 psi supply air pressure, the 192-204 features a dual-dial setpoint range of 45°F to 85°F. Contractors will appreciate the field-adjustable sensitivity (graduated from 1 to 4 psi/°F) and integral limit stops, which prevent unauthorized temperature adjustments and ensure system efficiency. The unit includes a manual override selector switch, enabling local "day" mode control during the night cycle. This Powers Controls chassis is built for durability and ease of maintenance, featuring an accessible output test port for quick pressure verification without removing the desert beige Cycolac cover.
Key Benefits for HVAC Professionals
- Optimized Energy Management: Automatic day-to-night setback switching based on supply air pressure changes (18/25 psi) reduces utility costs during unoccupied hours.
- High Output Capacity: The two-pipe relay design provides the volume required for large-scale institutional air handling and terminal units.
- Precise Calibration: Features factory-standard 2.5 psi/°F sensitivity and bi-metal elements that respond to changes as small as 0.1°F.
- Retrofit Ready: The included universal wall plate and 5/32" barbed fittings simplify replacements of legacy pneumatic controllers.
- Advanced Diagnostics: Front-facing test ports allow for immediate troubleshooting of the control air signal to ensure dampers and valves are modulating correctly.
Common Questions About the 192-204
Is the Siemens 192-204 compatible with one-pipe or two-pipe systems?
This specific model is a two-pipe high-capacity thermostat. While the 192 series includes various configurations, the 192-204 is optimized for two-pipe applications where high air volume is needed to move pneumatic actuators.
How do I switch this thermostat between day and night modes?
The mode change is typically handled automatically by the pneumatic control system changing the main supply air pressure. However, this model features a manual override switch on the side that allows occupants to temporarily return to the "day" setpoint during night cycles.
Can I adjust the sensitivity on this pneumatic thermostat?
Yes, the 192-204 has a graduated sensitivity adjustment screw located on the chassis, allowing you to fine-tune the output between 1 and 4 psi per degree of temperature change to match the requirements of your specific dampers or valves.
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.
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Description
The Siemens 192-204 Pneumatic Thermostat is a technician-grade dual setpoint room thermostat designed for heavy-duty commercial and institutional HVAC systems. Engineered for day/night control, this direct acting (DA) chassis maintains precise temperature regulation by utilizing highly responsive bi-metal sensing elements. This 192 DN Powerstar series model is optimized for two-pipe pneumatic systems, allowing for high air output capacity to drive multiple pneumatic valves or damper actuators simultaneously.
Operating on a standard 18 psi to 25 psi supply air pressure, the 192-204 features a dual-dial setpoint range of 45°F to 85°F. Contractors will appreciate the field-adjustable sensitivity (graduated from 1 to 4 psi/°F) and integral limit stops, which prevent unauthorized temperature adjustments and ensure system efficiency. The unit includes a manual override selector switch, enabling local "day" mode control during the night cycle. This Powers Controls chassis is built for durability and ease of maintenance, featuring an accessible output test port for quick pressure verification without removing the desert beige Cycolac cover.
Key Benefits for HVAC Professionals
- Optimized Energy Management: Automatic day-to-night setback switching based on supply air pressure changes (18/25 psi) reduces utility costs during unoccupied hours.
- High Output Capacity: The two-pipe relay design provides the volume required for large-scale institutional air handling and terminal units.
- Precise Calibration: Features factory-standard 2.5 psi/°F sensitivity and bi-metal elements that respond to changes as small as 0.1°F.
- Retrofit Ready: The included universal wall plate and 5/32" barbed fittings simplify replacements of legacy pneumatic controllers.
- Advanced Diagnostics: Front-facing test ports allow for immediate troubleshooting of the control air signal to ensure dampers and valves are modulating correctly.
Common Questions About the 192-204
Is the Siemens 192-204 compatible with one-pipe or two-pipe systems?
This specific model is a two-pipe high-capacity thermostat. While the 192 series includes various configurations, the 192-204 is optimized for two-pipe applications where high air volume is needed to move pneumatic actuators.
How do I switch this thermostat between day and night modes?
The mode change is typically handled automatically by the pneumatic control system changing the main supply air pressure. However, this model features a manual override switch on the side that allows occupants to temporarily return to the "day" setpoint during night cycles.
Can I adjust the sensitivity on this pneumatic thermostat?
Yes, the 192-204 has a graduated sensitivity adjustment screw located on the chassis, allowing you to fine-tune the output between 1 and 4 psi per degree of temperature change to match the requirements of your specific dampers or valves.
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.
