I have a problem getting the thermostat in Openhab 2.5 to switch.
To my setup:
It’s about controlling a refrigerator, so I put the thermostat in cool mode.
Unfortunately all possible configuration attempts did not lead to success.
Items:
Number:Temperature WKS_Q_Temp “Temperatur Wildkühlschrank Q [%.1f °C]” {channel=“zwave:device:e933b60f:node4:sensor_temperature”}
Number WKS_Q_Mode “Mode” {channel=“zwave:device:e933b60f:node4:thermostat_mode”}
Number WKS_Q_Strom “Strom akt.” {channel=“zwave:device:e933b60f:node4:meter_watts”}
Number WKS_Q_kWh “kWh” {channel=“zwave:device:e933b60f:node4:meter_kwh”}
Number:Temperature WKS_Q_Mid_Temp “Soll-Temperatur [%.1f °C]” {channel=“zwave:device:e933b60f:node4:thermostat_setpoint_heating”}
Accoording to the manual (https://qubino.com/manuals/Flush_On_Off_Thermostat_2.1_ENG.pdf?cf_id=8131) the values of 43 and 44 can be between 0-250 or 0-450 (depending if it is Fahrenheit or Celsius).
Parameter 59 needs te be 1, but according to the Things Summary, it can be changed with your item WKS_Q_Mode with a state 2 (Number). But it needs te be re-included (so exclude and then include).
But what is exactly the question? What does/doesn’t it do?
The PaperUI says to Parameter 44:
“This parameter defines temperature min difference between real measured temperature and set-point temperature to turn device off.
Available config. parameters (data type is 2 Byte DEC):
default value 5 (0.5 °C)
0 -127 = 0.0°C ~ 12.7 °C
1001 -1127 = -0.1°C ~ -12.7 °C”
The PaperUI says to Parameter 43:
“This parameter defines temperature min difference between real measured temperature and set-point temperature to turn device on.
Available config. parameters (data type is 2 Byte DEC):
default value 1005 (-0.5 °C)
0 -127 = 0.0°C ~ 12.7 °C
1001 -1127 = -0.1°C ~ -12.7 °C”
Quite different to the manual you linked above, but this manual refers to “QUBINO FLUSH ON/OFF THERMOSTAT 2”.
For the “QUBINO FLUSH ON/OFF THERMOSTAT” (without "2) is another manual available, which shows the same values like PaperUI: http://manual.zwave.eu/backend/make.php?lang=en&sku=GOAEZMNHID1
It seems that I have the one “without 2”.
Yes, I removed it, reset the thermostat using the i1-switch and reincluded.
“But what is exactly the question? What does/doesn’t it do?”
I used the above parameters. I set temperature to 4 °C to switch on. Hysteresis ±3 °C.
The measured temperature was 20 °C.
I expected the refrigerator would be switched on. But this never happen, regardless of the parameters I set.
The thermostat_mode channel is of type thermostat_mode and supports the Number item and is in the Temperature category. The following state translation is provided for this channel to the Number item type -:
Value
Label
0
Off
1
Heat
2
Cool
I think you have to remove this item, because you can’t change it without re-including the device and you have to set it once (and forget).
Then look at HABmin, as far as I know it’s a better zwave manager then paperUI. Look at parameter 59, is it still 1? If not, change it to 1 and re-include your device.
now that I had time again to devote myself to the subject due to Corona, the following result:
I set the parameter to 59 to 2 (Cool), excluded the Device and included it again.
After that I played around with all possible parameters all day today.
Now I am finally frustrated, because I did not manage to switch the connected device once.
I really have no idea what else I can do.
I would say that this device cannot really be controlled and operated in Openhab.
If anyone is reading this and has had other experiences, I would be happy if they had a hint after all.
Not sure if this is of any help… I’m using this device for heating, and generally it works fine.
Did you try with hysteresis on/off values both >0? It’s been a while that I installed this device, but I have something at back of my head that I may have had an issue with hysteresis values of >1000 (i.e. negative) somehow not working. This may be supported by the fact that my device is currently configured with 43/On: 0 (0,0°C) and 44/Off: 4 (0,4°C), while naturally I would have done 1002 and 2… And this should be no problem if you adjust the setpoint accordingly.
Also I’m not sure about your hysteresis values you gave above:
43: 1050 (-5,0°C) and 44: 1020 (-2,0°C)
For cooling I would expect them to be the other way around, the higher value for 43/on and the lower for 44/off?
“For cooling I would expect them to be the other way around, the higher value for 43/on and the lower for 44/off?”
That was a question I was asking myself. Somewhere in the manual it said that in cool mode the value 43 must be higher than 44.
But: What is meant by that.
Must the value “1050” (or similar) be higher or the transmitted value ("-5.0°C).
I then tried to find out with a test series.
I have tried 10 value constellations.
As a result I could not find any traceable behaviour. Also no behavior, which would indicate that the device was still in heat mode.
