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STR-150 Manual Configuration

Issue

How to change the STR-150 temperature display, setpoint adjustment range, etc.

Environment

STR-150

Cause

Some STR-150 function (for example, the setpoint adjustment) can not be configured though Zbuilder when it is connected to a Xenta 121. Configuration needs to be done manually.

Resolution

Buttons on the thermostat:

Increase Button

Decrease Button

Bypass button

Fan button

Wrench symbol

 

Steps of changing the STR-150 configuration are listed below:

  1. Enter Configuration:
    1. Push the fan and bypass button simultaneously for 2 seconds to enter P0
    2. 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.
       
  2. In configuration mode:
    1. 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
    2. Use increase button or decrease button to change the value.
       
  3. Exit configuration mode:
    1. 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
2=Offset

1=Absolute

 

Click here to read STR-150 user's manual.

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Version history
Revision #:
5 of 5
Last update:
2 weeks ago
Updated by:
 
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