Technical Instructions
Document Number 155-066P25
October 26, 2010
Page 2
Siemens Industry, Inc.
Optional Design
Features
•
Fixed temperature limit stops meet government specifications.
•
Metal covers available in standard configurations provide Desert Beige or white
finish.
•
Competitor adapter mounting kits available.
•
All thermostat chassis available with optional 1/2” large setpoint adjustment knobs.
Application
TH 192 HC thermostats provide all-season temperature control for two-pipe hot
water/chilled water heating and cooling applications (Figure 1) such as air conditioners,
space heaters, and unit ventilators. Thermostats maintain energy management
(maximum economy) and occupant comfort automatically as seasons change from the
heating setpoint (65-68
°
F, 10-20
°
C) to the cooling setpoint (76-80°F, 24-27°C).
TH 192 HC thermostats are available with covers that conceal or expose the setpoint
adjustment dials.
Figure 1. Typical TH 192 HC Thermostat Application.
Piping
TO CONTROLLED
DEVICES
AIR SUPPLY
R1
S
TH 192 HC
2-PIPE
THERMOSTAT
TH0256R1
Figure 2. TH 192 HC Thermostat Connections.
Product Numbers
and Ordering
Information
Chassis
See Table 1 for product number and ordering information on TH 192 HC thermostat
chassis.
1. Is a Fahrenheit or Celsius scale required?
2. Is the heating control direct or reverse acting?
3. Is the cooling control direct or reverse acting
4. Where is setpoint adjustment knob located?
a. Adjustment knob located at bottom of chassis.
b. Adjustment knob on front with 1/2” large exposed knob.
