SIEMENS TH 193 HC Heating and Cooling Room Thermostat Instruction Manual
Free Energy Band TH 193 HC Heating/Cooling Room Thermostat
Technical Instructions
Document Number 155-068P25
February 14, 2022
Control action
See Table 1
Specifications
Operating ranges
45°F to 85°F (7°C to 30°C)
30 psi (207 kPa)
Supply air pressure, maximum
Normal air supply pressure
Sensitivity adjustment
18 to 25 psi (124 to 172 kPa)
1 to 4 psi/°F (12 to 50 kPa/°C)
Nominal air consumption
One-pipe
Two-pipe
25 scim (6.8 ml/sec) per side
230 scim (63 ml/sec) per side
Temperature response
Temperature
0.1°F (0.06°C)
Storage temperature
Ambient operating temperature
-10°C to 140°F (-23°C to 60°C)
40°F to 140°F (4°C to 60°C)
Dial graduations
Factory settings
2°F (1°C)
Calibration @ 72°F (22°C)
Sensitivity
Limit stop adjustment
7.5 psi (52 kPa)
2.5 psi/F (31 kPa/C)
45°F and 85°F (7°C and 30°C)
Standard cover
Shipping weight
Dimensions
Cycolac, Desert Beige
0.7 lbs. (0.3 kg)
See Figure 10
Accessories
See the following Technical Bulletins for information on accessories:
Technical Bulletin
Document Number
TB 237 Terminal Kits
TB 214 Adapter Kits
TB 193 Guard Kit
TB 241 Test Head Kit
TB 167 Restrictors
155-244P25
155-231P25
155-222P25
155-255P25
155-213
Operation
The TH 193 HC thermostat is a two-temperature thermostat with two separate outputs.
In direct acting control, an increase in temperature increases the control air pressure
and a decrease in temperature decreases the control pressure. In reverse acting
control, an increase in temperature decreases the control air pressure and a decrease
in temperature increases the control pressure.
The TH 193 HC provides two separate bimetal elements; one for heating mode and the
other for cooling mode. The setpoint of the two elements determines the window of the
dead band. A 4F (2C) minimum dead band is standard, where the heating mode
setpoint is 72F (22C) and the cooling mode setpoint is 78F (26C). Figure 4 shows a
typical application with setpoints adjusted for a 6F (4C) dead band.
Figure 5 shows direct acting TH 193 HC output characteristics. As heating increases,
the output pressure increases from 0 to 15 psi (0 to 103 kPa). A field adjustable dead
band occurs. When the dead band elapses, cooling occurs from 0 to 15 psi (0 to
103 kPa).
Siemens Industry, Inc.
Page 5
| General | Details |
|---|---|
| Name | SIEMENS TH 193 HC Heating and Cooling Room Thermostat Instruction Manual |
| Make | SIEMENS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.15 MB |
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