Product Overview

www.usa.siemens.com/hvaccomponents
Thermostats
A-5
Typical wall plate and screws.
192 S Thermostat chassis.
Description
Providing proportional single output, single setpoint,
1-pipe for low air capacity or 2-pipe for high air capacity
pneumatic room temperature control, the 192 S Powerstar
Single Setpoint Pneumatic Room Thermostat is the most
economical model. Refer to the Retroline
®
Retrostats to
replace competitive models.
Features
• Single setpoint dial available in Fahrenheit or
Celsius scales
• Available in direct or reverse acting models
• Sensitive bimetal responds to temperature changes
• Integral, fi eld adjustable limit stops
• Wall mounting plate for connection to a variety of
rough-in terminal boxes included
• Large volume air capacity relay in 2-pipe models only
• Test port for fast check of output pressure without
removing the cover
• Field replaceable thermometer, setpoint dial, restrictor
and fi lters for decreased maintenance cost
Options
• Quick-connect air connections for ease of installation
and service
• Fixed limit stops to meet government specifi cations
• Large, 1/2" setpoint knob for convalescent homes
Applications
Designed for heating and cooling applications for control
of pneumatic valves and damper actuators. The 192 S
Powerstar Single Setpoint Pneumatic Room Thermostat is
excellent for commercial and institutional facilities.
Recommendation
1-pipe: Use when limited output air capacity is required to
operate a single valve and/or actuator; requires external
restrictor, 20 scim (5.4 ml/s) air supply.
2-pipe: Use for high output capacity for control of multiple
valves and actuators, used with or without high/low
limiting controls.
Application Drawings
Dotted lines are alternative control schemes.
192 S
Powerstar Single Setpoint
Pneumatic Room Thermostat