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 9
Heating Calibration
Step 1 —
If not already done, remove the cover
using the 192-632 Calibration Tool.
Verify that the room temperature is
between 70°F and 80F (21°C and
27C).
Step 2 —
Verify that the supply pressure is 25 psi
(172 kPa). Set the heating dial to 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.
Step 3 —
Moisten the needle and insert the
192-633 Test Gauge and needle
adapter in the test port. Read the
control pressure.
Step 4 —
If the control pressure does not read 7 to 8 psi (48
to 55 kPa), turn the calibration screw using the
192-632 Calibration Tool or 1/8-inch (3.2 mm)
wrench until pressure is 7 to 8 psi (48 to 55 kPa).
The sensing element is now in calibration and the
setpoint can be changed to the desired room
temperature.