SIEMENS
SIEMENS 194-3083 Pneumatic Thermostat Conversion Kit
Converts pneumatic thermostats to Powerstar 192 with dual setpoint, 45 to 85 F range and 2.5 F throttling
- TypeLearning Thermostats
- Dual temperature control with heating and cooling modes
- Adjustable setpoint from 45 to 85 F for precise comfort
- Converts competitive models to Powerstar 192 compatibility
- Factory preset at 7.5 PSI with 2.5 PSI per degree sensitivity
- Maximum safe operating pressure of 30 PSI and temperature of 140 F
Dual-Temperature HVAC Retrofit
This Siemens 194-3083 pneumatic thermostat conversion kit upgrades existing controls to Powerstar 192 operation. It supports dual set-point adjustment for heating and cooling sequences in two-pipe systems. Building engineers and HVAC technicians use it to modernise legacy pneumatic zones without rewiring.
Factory 7.5 PSI Preset With 2.5 PSI/°F Sensitivity
The unit ships calibrated at 7.5 PSI and reacts at 2.5 PSI per degree Fahrenheit across a 45 to 85 °F range. Throttling range is 2.5 °F, while maximum safe supply pressure is 30 PSIG and minimum operating pressure is 18 PSIG. These pressures decide whether the kit matches the building air supply.
Direct Mount With Included Plate
The bi-metal sensing element fits the supplied mounting plate, converting competitive models in minutes. Common issues are supply pressure outside the 18 to 30 PSIG window or ambient temperatures above 140 °F, which exceed the safe operating limit. Verify air pressure before installation.
Highlights
- Dual temperature control with heating and cooling modes
- Adjustable setpoint from 45 to 85 F for precise comfort
- Converts competitive models to Powerstar 192 compatibility
- Factory preset at 7.5 PSI with 2.5 PSI per degree sensitivity
- Maximum safe operating pressure of 30 PSI and temperature of 140 F
Specifications
| Brand | SIEMENS |
|---|---|
| Type | Learning Thermostats |
Questions about this item
What does the 45 to 85 F temperature range mean for daily heating control?
The thermostat lets you set the heating setpoint anywhere between 45 and 85 degrees Fahrenheit, so the space can be maintained at the exact comfort level you choose.
How does the 2.5 PSI per degree sensitivity and 2.5 F throttling range affect pneumatic response?
A 2.5 PSI per degree sensitivity means the output pressure shifts 2.5 PSI for every degree of temperature change, while the 2.5 F throttling range defines the span over which the valve moves from fully closed to fully open.
Will the 3-3/8 by 2-1/8 by 1-5/8 inch body and included mounting plate fit my existing pneumatic stat opening?
The unit measures 3-3/8 inches high, 2-1/8 inches wide and 1-5/8 inches deep, and the supplied mounting plate is designed to adapt competitive models to the Powerstar 192 footprint.
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