Skip to content

ME167 Zigbee THermostats

Is a Zigbee Thermometer

Setup

  • Pairing mode: < 5C, then press the button for >5 sec
  • "Local temperature offset": correction compared to measured temperature (measure + offset)

How to choose the right adapter

  • Set to 35 C
  • Measure the distance between the screw thread and the top of the flow needle (while pressing it)
    • 10 → 12 mm = extension 15 mm
    • 8.5 → 10 mm = extension 17 mm
    • 6 → 8.5 mm = extension 18.5 mm
    • <6 mm = extension 24 mm
  • Put the large head between the plastic adapter & the output
  • How to check
    • Measure that the flow needle is at 14 mm between the top of the needle and the adaptor screw (12mm closed, 14 mm open) 298x214

Usage

Valve observation

  • Mode: Heat
    • Mode: Off → Valve fully closed (pin at ~4 mm)
  • Temperature Gap
    • = Actual Temperature - Target Temperature
    • "The difference in Celcius between the Actual and Target Temperature"
    • In the positive: actual temperature is too hot
    • In the negative: actual temperature is too cold
  • 3 degree hysteresis
Temperature Gap Temperature Gap Pin extension Valve position
Actual temp. is increasing Actual temp. is decreasing
Target temp. is decreasing Target temp. is increasing
≥ +3 ≥ 0 ~ 4 mm Closed: no heating
+2 -1 ~ 3 mm
+1 -2 ~ 2 mm
0 -3 ~ 1 mm
≤ -1 ≤ -4 0 mm Opened
## Source
- YouTube