Data Sheet for Product

Free Energy Band TH 193 HC Heating/Cooling Room Thermostat Technical Instructions
Document Number 155-068P25
February 14, 2022
Siemens Industry, Inc. Page 3
Product Numbers
and Ordering
Information
Chassis
See Table 1 for product number and ordering information on TH 193 HC thermostat
chassis.
1. Does the application require a one-pipe or two-pipe connection?
a. One-pipe thermostats are low air capacity devices and have only one port
connection (R1). This application requires an external restrictor.
b. Two-pipe thermostats are high air capacity devices for controlling two or more
terminal devices such as damper actuators or valves. This application requires
two port connections: supply (S) and return (R1).
2. Is a Fahrenheit or Celsius scale required?
3. Is the heating control direct or reverse acting?
4. Is the cooling control direct or reverse acting?
Table 1. TH 193 HC Thermostat Chassis Part Numbers.
Chassis with Wall Plate
Connection
Type
Setpoint
Adjustment
Fahrenheit
Celsius
Heating DA
Heating RA
Heating DA
One-Pipe
Relay
Exposed
at bottom
of cover
Cooling DA
193-211
Cooling DA
193-213
—
Cooling RA
193-212
—
—
Two-Pipe
Relay
Cooling DA
193-215
Cooling DA
193-217
Cooling DA
193-235
Cooling RA
193-216
Cooling RA
193-218
—