SIEMENS TH192 HC Heating-Cooling Room Thermostat Instruction Manual

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Installation Instructions  

Document No. 129-076  

March 14, 2022  

TH192 HC Heating/Cooling Room  

Thermostat  

Product Description  

Installation  

Overview  

The TH192 HC thermostats are proportional single output,  

dual set point, 2-pipe (high air capacity) temperature  

controllers. Each TH192 HC chassis includes a wall plate  

for thermostat installation using a variety of rough-in  

installation kits.  

The TH192 HC thermostat and wall plate mount vertically  

to a wall using a variety of rough-in installation kits (for  

example, wall box kits or tubing terminal kits). The ends of  

the air lines from the rough-in installation kits have  

terminal adapters that snap into the wall plate. Terminal  

adapters also are available separately as orderable  

accessories. (Note that certain retrofit applications allow  

air connections directly to the thermostat chassis).  

Prerequisites  

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Review all instructions before beginning  

installation.  

Verify job drawings are available to reference  

specific job site information as needed.  

S, R1, and R2 labels on both the thermostat chassis and  

the wall plate identify the air line connections. The  

thermostat plugs into the terminal adapters on the wall  

plate. The Piping section of this document shows typical  

connections.  

Verify rough-in installation kits (wall-box or tubing  

runs) are pre-installed.  

Expected Installation Time  

Two cover screws plus latch arms on the wall plate hold  

the thermostat in place. The cover fits over the thermostat  

and the two cover screws fasten it to the wall plate.  

30 Minutes  

Required Tools  

Procedure  

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Medium flat blade screwdriver  

Needle nose pliers  

Small level  

The following procedure is for a typical thermostat  

installation and assumes the rough-in installation kit is in  

place. See Figure 1.  

Calibration and Cover Screw Wrench or 1/16”  

Allen wrench (192-632)  

1. The rough-in installation kit provides a supply (blue)  

air line and a return air line joined by an air link.  

Remove the terminal adapters from the air link and  

snap them into the wall plate at their respective  

locations.  

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Needle Probe with 1-1/2” diameter, 0 to 30 psig (0  

to 200 kPa) test gauge (192-633)  

Installation Conventions  

2. Using the mounting screws supplied with the  

thermostat chassis, install the wall plate on the wall as  

follows:  

WARNING  

Personal injury/loss of life may  

occur if a procedure is not  

performed as specified.  

a. Guide the screws through the slotted key holes on  

the wall plate and partially insert them into wall.  

CAUTION  

Equipment damage, or loss of  

data may occur if the user  

does not follow procedure as  

specified.  

b. Orient the wall plate so that it is square and level.  

c. Tighten the mounting screws to secure the wall  

plate in place.  

3. Moisten the thermostat supply and return ports to  

lubricate them. Carefully insert the thermostat ports  

into the terminal adapter O-rings on the wall plate.  

Item Number 129-076+2, Rev CA  

Page 1 of 4  

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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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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• SIEMENS

SIEMENS TH192 HC Heating-Cooling Room Thermostat Instruction Manual Overview

Summary of Contents

• Page 1: Installation instructions for the TH192 HC heating/cooling room thermostat are provided. The TH192 HC thermostats are proportional single output, dual set point, 2-pipe temperature controllers. Each thermostat includes a wall plate for installation using various rough-in kits. The thermostat and wall plate mount vertically to a wall with terminal adapters that snap into the wall plate. Review all instructions before beginning installation and verify job drawings are available. Labels on the thermostat chassis and wall plate identify air line connections. Installation time is expected to be around 30 minutes. Required tools include a medium flat blade screwdriver, needle nose pliers, and a small level. A warning indicates that personal injury or loss of life may occur if procedures are not followed. A caution states that equipment damage or loss of data may occur if the procedure is not followed as specified.
• Page 2: Installation instructions for the thermostat are provided. When converting from Model TH180 or TH182 to the TH19X, specific components are needed. The TH180 or TH182 cover is not compatible with the TH19X chassis. Use a hex key or 1/16” Allen wrench to secure the cover in place. Terminal adapters are required for the plug-in feature. The optional 1/2-inch large set point adjustment knob can be placed on the shaft. All piping must conform to local codes and regulations. A test thermometer is needed to read the current room temperature. Carefully rotate the thermometer assembly to indicate the correct room temperature. Avoid touching the bimetal spiral to ensure accurate temperature readings.
• Page 3: Installation instructions provide essential information for adjusting the thermostat. The changeover point is factory set to occur between 19 and 22 psi. It can be field adjustable to occur between 14 and 22 psi. Thermostat limit stops define the minimum and maximum thermostat set points. Changing the limit stop position one gear tooth changes the limit stop setting by 1-1/3°F. The factory thermostat sensitivity setting is approximately 2.5 psi/°F. To change the sensitivity, use a flat blade screwdriver to move the sensitivity slide. The thermostat is factory calibrated to a control pressure of 7.5 psi when set at 72°F. If the thermostat has been tampered or is out of adjustment, recalibration procedures are necessary. The output pressure test port is accessible without removing the thermostat cover.
• Page 4: Installation instructions provide guidance for setting up the thermostat. Moisten the needle and insert the test gauge and needle adapter in the test port to read the control pressure. Before troubleshooting, ensure there is clean dry supply air at 18 psi (124 kPa) minimum. Measure the control pressure at the output pressure test port without removing the thermostat cover. If the control pressure does not read 7 to 8 psi (48 to 55 kPa), adjust the calibration screw until the correct pressure is achieved. Verify that the room temperature is between 70 and 80 °F (21 and 27 °C) before calibration. Set the heating dial to the room temperature and allow the thermostat to adjust for about five minutes. The troubleshooting guide outlines common problems, causes, and actions to take. If the control pressure stays at approximately zero, check for low supply pressure or a clogged nozzle. Ensure connections are correct to avoid excessive air leakage from the exhaust port.