Home > SIEMENS > SIEMENS Powers Controls TH 192-3 Series Day Night Vent Room Thermostat Instruction Manual
SIEMENS Powers Controls TH 192-3 Series Day Night Vent Room Thermostat Instruction Manual
Technical Instructions
Document No. 155-067P25
TH 192-3
February 11, 2022
POWERS™ CONTROLS
TH 192 DN Day-Night and
TH 192 DNV Day-Night-Vent
Room Thermostat
Description
The TH 192 DN and DNV thermostats are proportional, single output, dual setpoint,
2-pipe or 3-pipe (high air capacity) sensor controllers. Each thermostat includes a wall
mounting plate for installation in a variety of rough-in terminal boxes. Sensitive bimetals
respond to temperature change to modulate control air through a flapper nozzle. Two
setpoint dials are provided. 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
(provided with the TH 192 rough-in terminal box or optional accessories) which slide
into the wall mounting plate.
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Direct and reverse acting for day and night modes (DN models).
Two separate, adjustable temperature setpoint indicating dials.
Two highly sensitive bimetal thermostatic elements.
Features
Operating mode automatically switches from day to night on change of main air
supply pressure.
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Manual override selector ensures off-hour occupancy comfort.
Single screw adjustment for changeover switch setpoint.
Individual field adjustable sensitivity with graduated scale for each mode.
Integral field adjustable limit stops.
Control pressure test port accessible without removing cover.
Easily replaceable thermometer, setpoint dials, filters, and restrictor plate.
Fahrenheit or Celsius setpoint dials.
Covers available for concealed or exposed thermometers and for either concealed,
key, or exposed knob adjustment and setpoint adjustment.
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Standard plastic thermostat covers provide Desert Beige or white finish.
Siemens Industry, Inc.
| General | Details |
|---|---|
| Name | SIEMENS Powers Controls TH 192-3 Series Day Night Vent Room Thermostat Instruction Manual |
| Make | SIEMENS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.16 MB |
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Siemens Powers Controls TH 192-3 Night Vent Manual: Questions and Answers
Where is the chassis tube connector on the Siemens Powers Controls TH 192-3 Night Vent?
On the back of the thermostat chassis. Instruction Manual, p. 12
What's the difference between day mode and night mode on this thermostat?
Day mode uses 18 psi supply pressure; night mode uses 25 psi. Each has its own independent bimetal element.
| Mode | Supply Air Pressure |
|---|---|
| Day | 18 psi (124 kPa) |
| Night | 25 psi (172 kPa) |
What does the vent line connection on the Siemens Powers Controls TH 192-3 Night Vent provide?
The vent line supplies either 0 or 25 psi pressure via the manual selector switch to pilot auxiliary controls like unit ventilators. Instruction Manual, p. 6
What do the setpoint dials on the Siemens Powers Controls TH 192-3 Night Vent indicate?
Two separate adjustable temperature setpoint indicating dials for day and night modes. Instruction Manual, p. 1
Can you replace the thermometer on a Siemens Powers thermostat?
Yes. The thermometer is easily replaceable. Instruction Manual, p. 1
How does the Siemens Powers Controls TH 192-3 Night Vent switch between day and night operation?
When supply air pressure changes from 18 to 25 psi, the thermostat automatically switches from day to night setpoint. Instruction Manual, p. 1
How do I know if the Siemens Powers Controls TH 192-3 Night Vent is properly calibrated?
Control pressure reads 7 to 8 psi (48 to 55 kPa) at the test port when the setpoint dial matches room temperature. Instruction Manual, p. 9
How long does the Siemens Powers Controls TH 192-3 Night Vent take to adjust after changing the setpoint?
About five minutes to stabilize after you turn the dial or adjust with a hex key. Instruction Manual, p. 9
What supply pressure does Siemens Powers require for night mode operation?
25 psi (172 kPa). Instruction Manual, p. 9
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