SIEMENS TH192 HC Heating-Cooling Room Thermostat Instruction Manual
Document No.129-076
Installation Instructions
March 14, 2022
3. Moisten the needle and insert the test gauge and
needle adapter in the test port (Figure 4). Read the
control pressure.
Troubleshooting
Before troubleshooting the thermostat per Table 1, make
certain there is clean dry supply air at 18 psi (124 kPa)
minimum. Use the test probe gauge and needle adapter to
measure the control pressure at the output pressure test
port (Figure 4). The output pressure test port is accessible
without removing the thermostat cover through the 8th
opening from the top as follows:
4. If the control pressure does not read 7 to 8 psi (48 to
55 kPa), turn the calibration screw (Figure 3) using the
calibration tool or a 1/8” (3.2 mm) wrench until the
pressure is 7 to 8 psi (48 to 55 kPa). The sensing
element is now in calibration and the set point can be
changed to the desired room temperature.
•
For TH192 HC thermostats, the port is on the left side.
Heating Calibration
CAUTION:
If you use the wrong test port, thermostat
damage can occur and result in
replacement of the device.
1. If not already done, remove the cover using the
calibration tool. Verify that the room temperature is
between 70 and 80F (21 and 27C).
2. Verify that the supply pressure is 25 psi (172 kPa). Set
the heating dial to the room temperature by turning the
exposed adjustment knob or using a hex. Allow the
thermostat to stand for about five minutes to adjust to
the new setting.
Table 1. Troubleshooting Guide.
Problem
Check
Cause
Action
Control
Air supply Low supply
pressure
As required
pressure
stays at
approximately
zero
Nozzle or Dirt on nozzle or Clean nozzle
or replace
thermostat
3. Moisten the needle and insert the test gauge and
needle adapter in the test port (Figure 4). Read the
control pressure.
flapper
flapper
Restrictor Clogged
restrictor
Replace
restrictor
4. If the control pressure does not read 7 to 8 psi (48 to
55 kPa), turn the calibration screw (Figure 3) using the
calibration tool or a 1/8” (3.2 mm) wrench until the
pressure is 7 to 8 psi (48 to 55 kPa). The sensing
element is now in calibration and the set point can be
changed to the desired room
Calibration Out of calibration Recalibrate
Control
pressure
stays at
Nozzle
Clogged nozzle Clean nozzle
or replace
thermostat
approximately
supply
pressure
Calibration Dirt on either
supply or
Alternately
close and
open nozzle
by gently
Reference
exhaust valve
seat
Document
Number
pushing down
the bimetal
TH192-2, TH192 HC Heating/Cooling
Room Thermostat Technical Instructions
155-066P25
Excessive air Supply and Connections are As required
leakage from return line interchanged or
exhaust port connection connection to
TB 214, TH192 Adapter Kits Technical
Bulletin
155-231
155-244
on left side of
thermostat
port is incorrect
TB 237, Accessories for Installation of
TH192, TH193, or TH194 Room
Thermostats Technical Bulletin
Dimensions
Figure 5. TH192 HC Dimensions in Inches (Millimeters).
Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models
as design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective owners. ©
2009-2022 Siemens Industry, Inc.
Siemens Industry, Inc.
Smart Infrastructure
1000 Deerfield Parkway
Buffalo Grove, IL 60089-4513
USA
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Document No. 129-076
Printed in the USA
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Tel. +1 847-215-1000
| General | Details |
|---|---|
| Name | SIEMENS TH192 HC Heating-Cooling Room Thermostat Instruction Manual |
| Make | SIEMENS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.09 MB |
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