Installation Instructions

ManualsBrandsSiemens ManualsHeating Supplies1-Pipe Powerstar 2 Setpoint/2 Output Reverse Acting Pneumatic Room Thermostat (45° to 85°F)

Document No. 129-078

March 15, 2022

Free Energy Band

™

TH193 HC

Heating/Cooling Room Thermostat

Item Number 129-078+3, Rev DA Page 1 of 4

Product Description

The TH193 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) temperature controllers. Each TH193 HC

chassis includes a wall plate for thermostat

installation using a variety of rough-in installation

kits.

Prerequisites

• Review all instructions before beginning

installation.

• Verify job drawings are available to reference

specific job site information as needed.

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

tubing runs) are pre-installed.

Expected Installation Time

30 Minutes

Required Tools

• Medium flat-blade screwdriver

• Needle nose pliers

• Small level

• Calibration and cover screw wrench or 1/16-

inch Allen wrench (P/N 192-632)

• Needle Probe with 1-1/2 inch diameter, 0 to

30 psig (0 to 200 kPa) test gauge

(P/N 192-633)

Warning/Caution Notations

WARNING

Personal injury or loss of life

may occur if a procedure is not

performed as specified.

CAUTION

Equipment damage or loss of

data may occur if the user

does not follow a procedure as

specified.

Installation

Overview

The TH193 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 are also

available separately as orderable accessories. See

TB 237 (155-244P25).

NOTE: Certain retrofit applications allow air

connections directly to the thermostat

chassis.

The 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. See Piping for typical

connections.

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.

Procedure

The following procedure is for a typical thermostat

installation and assumes the rough-in installation kit

is in place. See Figure 1.

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.

2. Using the mounting screws supplied with the

thermostat chassis, install the wall plate on the

wall as follows:

a. Guide the screws through the slotted

keyholes on the wall plate and partially insert

them into wall.

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

level.

c. Tighten the mounting screws to secure the

wall plate in place.

Summary of content (4 pages)

PAGE 1
Installation Instructions Document No. 129-078 March 15, 2022 Free Energy Band™ TH193 HC Heating/Cooling Room Thermostat Product Description The TH193 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) temperature controllers. Each TH193 HC chassis includes a wall plate for thermostat installation using a variety of rough-in installation kits.
PAGE 2
Document No. 129-078 Installation Instructions March 15, 2022 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. 4. Mount the cover over the thermostat. NOTE: For applications that use the 1/2-inch setpoint adjustment knob, align the keyhole in the cover over the shaft protruding from the thermostat when mounting the cover.
PAGE 3
Thermometer Calibration, Continued Document No. 129-078 Installation Instructions March 15, 2022 If the thermostat has been tampered with, the sensitivity changed, or it is out of adjustment, use the following procedures to recalibrate the instrument. The output pressure test port (Figure 5) is accessible without removing the thermostat cover through the 8th opening from the top as follows: • For one-pipe thermostats, the test port is on the right side.
PAGE 4
Document No. 129-078 Installation Instructions March 15, 2022 Table 1. Troubleshooting Guide. Heating Calibration 1. If not already done, remove the cover using the calibration tool. Verify that the room temperature is between 70°F and 80F (21°C and 27C). 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 key as shown. Allow the thermostat to stand for about five minutes to adjust to the new setting.