Assortment / System Description
Pneumatic Thermostats
Powerstar® Single Setpoint Pneumatic Thermostat 192 S
The 192 S Thermostats are proportional single output, single setpoint, 1-pipe (low air capacity)
or
2-pipe (high air capacity) sensor controllers. Each thermostat includes a wall mounting plate for
installation in a variety of rough-in terminal boxes. A sensitive bimetal responds to temperature
change to modulate control air through a flapper nozzle. One setpoint dial is provided. Air
connections are made with 5/32” (4 mm) O.D. plastic tubing, directly to the thermostat chassis
for retrofit applications or with plug-in adapter accessory that slide into the wall mounting plate.
Part Numbers: 192-200, 192-201, 192-202, 192-203,192-220, 192-221, 192-222, 192-223
Technical Instructions
Installation Instructions
Powerstar® Heating/Cooling Pneumatic Room Thermostat 192 HC
The TH 192 HC thermostats are proportional single output, dual setpoint, 2-pipe (high air
capacity) sensor controllers. Sensitive bimetals respond to temperature change to modulate
control air through a flapper nozzle. When the supply air pressure changes from 18 to 25 psi
(124 to 172 kPa), the thermostat automatically switches from the cooling to the heating setpoint
respectively. Air connections are made with 5/32” (4 mm) O.D. plastic tubing, directly to the
thermostat chassis for retrofit applications or with plug-in adapters which slide into the wall
mounting plate.
Part Numbers: 192-207, 192-208, 192-209, 192-210, 192-227, 192-228, 192-229, 192-230
Technical Instructions
Installation Instructions
Powerstar® Day/Night/Vent Pneumatic Room Thermostat 192 DN/DNV
The TH 192 DN and DNV thermostats are proportional single output, dual setpoint, 2-pipe or
3-pipe (high air capacity) sensor controllers. Sensitive bimetals respond to temperature change
to modulate control air through a flapper nozzle. When the supply air pressure changes from 18
to 25 psi (124 to 172 kPa), the thermostat automatically switches from the day to the night
setpoint respectively. Air connections are made with 5/32” (4 mm) O.D. plastic tubing, directly to
the thermostat chassis for retrofit applications or with plug-in adapters which slide into the wall
mounting plate.
Part Numbers: 192-204, 192-205, 192-206, 192-224, 192-225, 192-226
Technical Instructions
Installation Instructions
Powerstar® Free Energy Band Heating/Cooling Pneumatic Room
Thermostat 193 HC
The TH 193 HC thermostats are proportional dual output, dual setpoint, two-pipe (dual one-
pipe, low air capacity) or three-pipe (dual two-pipe, high air capacity) sensor controllers.
Sensitive bimetals respond to temperature changes to modulate control air through a flapper
nozzle. As the heating load decreases due to internal heat gains, a dead band of control
minimizes energy consumption while the setpoint changes from 72°F (22°C) heating mode to
78°F (26°C) cooling mode. Two setpoint dials allow adjustment of the dead band 4°F (2°C)
minimum. Air connections are made with 5/32-inch (4 mm) O.D. plastic tubing, directly to the
thermostat chassis for retrofit applications or with plug-in adapters which slide into the wall
mounting plate.
Part Numbers: 193-211, 193-212, 193-213, 193-214, 193-215, 193-216, 193-217, 193-218,
193-235
Technical Instructions
Installation Instructions
Powerstar® Free Energy Band Heating/Cooling Pneumatic Room
Thermostat 193 HC Hesitation
The TH 193 HC Hesitation Thermostats are proportional single output, dual setpoint, two-pipe
(high air capacity) sensor controllers. Sensitive bimetals respond to temperature changes to
modulate control air through a flapper nozzle. As the heating load decreases due to internal
heat gains, a deadband of control minimizes energy consumption while the setpoint changes
from 72°F (22°C) heating mode to 78°F (26°C) cooling mode. Two setpoint dials allow
adjustment of the deadband (4°F, 2°C, minimum). Air connections are made with 5/32-inch (4
mm) O.D. plastic tubing, directly to the thermostat chassis for retrofit applications or with plug-in
adapters which slide into the wall mounting plate.
Part Numbers: 193-219, 193-220
Technical Instructions
Installation Instructions