Issue
How to change the STR-150 temperature display, setpoint adjustment range, etc.
Product Line
TAC Vista
Environment
- STR-150
- STR Sensor
Cause
The communication between the STR-150 and the TAC Xenta 121/122 device is one way, space temperature and setpoints are sent from the sensor to the controller. Therefore some STR-150 functions (for example, the setpoint adjustment) can not be configured though Zbuilder, but needs to be done manually in the STR 150 device.
Resolution
Buttons on the thermostat:
|
Increase Button |
Decrease Button |
Bypass button |
Fan button |
Wrench symbol |
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Steps of changing the STR-150 configuration are listed below:
- Enter Configuration:
- Push the fan and bypass button simultaneously for 2 seconds to enter P0
- In P0, hold down the bypass button and push the fan button three times to enter configuration mode.
NOTE: the wrench symbol is lit when the STR-150 is in configuration mode.
- In configuration mode:
- Press the fan button repeatedly until reaches desired parameters (refer to the configuration table below).
NOTE: the two digits farthest to the left on the display show the parameters, while the two digits farthest to the right show the value - Use increase button or decrease button to change the value.
- Press the fan button repeatedly until reaches desired parameters (refer to the configuration table below).
- Exit configuration mode:
- Push the fan and bypass button simultaneously for 2 seconds. Or, the timeout will exit configuration mode if idle.
- Push the fan and bypass button simultaneously for 2 seconds. Or, the timeout will exit configuration mode if idle.
Configuration Options:
|
Parameter |
Function |
Value/Range |
Default value |
|
P0 |
Software Version |
- |
- |
|
P1 |
°C or °F temperature display |
1=°C, 2=°F |
1=°C |
|
P2 |
Reference temperature (Reftemp) |
15-30°C / 60-90°F |
22°C / 72°F |
|
P3 |
Setpoint or room temp. |
1=Setpt, 2=Room |
1=Setpt |
|
P4 |
Timeout |
5-90 seconds |
10 seconds |
|
P5 |
Fan Settings |
0=No fan 1=On/Off fan 2=Two-speed fan 3=Three-speed fan |
3=Three-speed fan |
|
P6 |
Room temperature and setpoint display resolution |
0.1 or 0.5 °C 0.2 or 1.0 °F |
0.5 °C or 0.2 °F |
|
P7 |
Max adjustable setpoint span above or below Reftemp (P2). |
+/- 0 - +/- 5°C +/- 0 - +/- 10°F |
+/- 3° or +/- 6°F |
|
P8 |
Bypass button and occupancy indication When = 2, no bypass command is sent to the controller |
1= Symbol on, off Or flashing 2=Symbol always off |
Default 1=on, off Or flashing |
|
P9 |
Setpoint as Absolute or Offset value |
1=Absolute |
1=Absolute |
Click here to read STR-150 user's manual.
