Zehnder/Stork WHR Ventilation Unit

[john1469]

Hello,

I do have simular communication issues. As I am not tha familiar with phyton/domotics, I have tried communication with USB/Serial converter.
I used RealTerm to communicate with the WHR930. When I select the example from "Protokollbeschreibung_ComfoAir" (0x07 0xF0 0x00 0x69 0x00 0x16 0x07 0x0F) I get a reply similar to the example.
The same result for the ' Bootloader version' .
But when asking other status (for example temperature), then I get no response at all. I see also only the TX led from my PC, but no RX led illuminating.

Any idea?

[Sappien]

Can you give a example? Are you sure the Checksum is right?

[john1469]

@Sappien,

Thanks for your reply. I have tested it again, where I calculated the checksum with Excel file.
Several commands are working, but several not.
I still do not understand what was wrong with previous testing. But now I get more response than before.
I expect that for the commands that are not answered, the features are not available on my Basic/standard unit.

Tested:
Send: x07 xF0 x00 x69 x00 x16 x07 x0f
Receive: 07 F3 07 F0 00 6A 0D 03 01 20 57 48 52 20 39 33 30 20 20 20 55 07 0F

Send: x07 xF0 x00 x67 x00 x14 x07 x0f
Receive: 07 F3 07 F0 00 68 0D 03 01 20 57 48 52 20 39 33 30 20 20 20 53 07 0F

Send: x07 xF0 x00 xa1 x00 x4e x07 x0f
Receive: Nothing

Inputs:
Send: x07 xF0 x00 x03 x00 xb0 x07 x0f
Receive: 07 F3 07 F0 00 04 02 00 00 B3 07 0F

Temperature:
Send: x07 xF0 x00 x0F x00 xbc x07 x0f
Receive: 07 F3 07 F0 00 10 04 30 51 4F 35 C6 07 0F

(Time) delays
Send: x07 xF0 x00 x9c x00 x49 x07 x0f
Receive: Nothing

Fan settings
Send: x07 xF0 x00 xcd x00 x7a x07 x0f
Receive: 07 F3 07 F0 00 CE 0A 23 32 46 23 32 46 28 23 01 01 08 07 0F

Actual tempertures:
Send: x07 xF0 x00 xd1 x00 x7e x07 x0f
Receive: 07 F3 07 F0 00 D2 06 58 30 51 50 35 0F F2 07 0F (strange values????)

Actual status:
Send: x07 xF0 x00 xd5 x00 x82 x07 x0f
Receive: 07 F3 07 F0 00 D6 04 00 01 02 02 8C 07 0F

[Sappien]

I've got a WHR930 with co2 module, but on the office a standard WHR930..

When you try to change the speed, did you tried to change the 3-state switch (perilex) ?

Some models only respond when it's on mode 1 (low)

[john1469]

Still a question for control the fan speed:

Send: x07 xF0 x00 x99 x01 x04 x4B x07 x0f
Receive: Nothing. Also no action

What is wrong in this command?

[john1469]

Yes, switch is on pos 1 (low) on the perilex

[ErwinH]

I received my WHR930 unit and will be using this script as well and will try to create a plugin for ESPeasy which can push the data automagicly (over http or mqtt) to Domoticz.

I'll be using an NodeMCU v3, with a MAX3232 converter to the RJ45 port. For now i'll be using SerialServer, with your script on my OrangePi, using socat to create a virtual tty.

[PiotrekB]

Ok, but who know how to start this plugin with CCeasy Zehnder Panel.

[Scriptonusman]

The StorkAir maintenance SW doesn't seem to be available on the forum as suggested any more: https://www.promixis.com/forums/showthr ... R950/page3
Would anyone be able to share this file? (Just for initial testing purposes of the hardware and cabeling.

[PiotrekB]

I found schematic to the conection with use CCeasy with RPI ?
Is there enybody who can confirm working with domoticz ?

[rrozema]

The StorkAir maintenance SW doesn't seem to be available on the forum as suggested any more: https://www.promixis.com/forums/showthr ... R950/page3
Would anyone be able to share this file? (Just for initial testing purposes of the hardware and cabeling.

I too would like to receive a copy to be able to verify correct hardware connections.

[piterbo]

I've made a new script for the WHR930 with MQTT support,

https://github.com/AlbertHakvoort/Stork ... oticz-MQTT

Sorry but can you show your conections to the WHR ?
It is corect, what Im show ?

I found schematic to the conection with use CCeasy with RPI ?
Is there enybody who can confirm working with domoticz ?

[hesselb]

@Sappien
i have version 3 running, Buth the nieuw version not
im missing somthing?

[hesselb]

the nieuw version is working
i have the whr 930 de luxe
temp reading is not consistent
selector switch 1 is off, 2 is level 1, 3 is level 2

[hesselb]

a view smal problems

1563091783: New client connected from 127.0.0.1 as whr930 (c1, k700).
1563091792: Socket error on client whr930, disconnecting.

and the log from domticz

2019-07-14 10:14:00.811 MQTT: Topic: domoticz/in, Message: { "idx" : 61, "nvalue" : 0, "svalue" :"Unknown"}
2019-07-14 10:14:02.944 MQTT: Topic: domoticz/in, Message: { "idx" : 63, "nvalue" : 0, "svalue" :"Unknown"}
2019-07-14 10:14:05.093 MQTT: Topic: domoticz/in, Message: { "idx" : 57, "nvalue" : 0, "svalue" :"0"}
2019-07-14 10:14:05.200 MQTT: Topic: domoticz/in, Message: { "idx" : 58, "nvalue" : 0, "svalue" :"0"}
2019-07-14 10:14:05.307 MQTT: Topic: domoticz/in, Message: { "idx" : 59, "nvalue" : 0, "svalue" :"15625"}
2019-07-14 10:14:05.414 MQTT: Topic: domoticz/in, Message: { "idx" : 60, "nvalue" : 0, "svalue" :"13297"}
2019-07-14 10:14:17.629 MQTT: Topic: domoticz/in, Message: { "idx" : 52, "nvalue" : 0, "svalue" :"44.5"}
2019-07-14 10:14:17.732 MQTT: Topic: domoticz/in, Message: { "idx" : 53, "nvalue" : 0, "svalue" :"-12.0"}
2019-07-14 10:14:17.836 MQTT: Topic: domoticz/in, Message: { "idx" : 54, "nvalue" : 0, "svalue" :"11.5"}
2019-07-14 10:14:17.939 MQTT: Topic: domoticz/in, Message: { "idx" : 55, "nvalue" : 0, "svalue" :"75.5"}
2019-07-14 10:14:20.095 MQTT: Topic: domoticz/in, Message: { "idx" : 62, "nvalue" : 0, "svalue" :"-1"}
2019-07-14 10:14:20.202 MQTT: Topic: domoticz/in, Message: { "idx" : 61, "nvalue" : 0, "svalue" :"Unknown"}
2019-07-14 10:14:22.339 MQTT: Topic: domoticz/in, Message: { "idx" : 63, "nvalue" : 0, "svalue" :"Ok"}
2019-07-14 10:14:24.484 MQTT: Topic: domoticz/in, Message: { "idx" : 57, "nvalue" : 0, "svalue" :"15"}
2019-07-14 10:14:24.591 MQTT: Topic: domoticz/in, Message: { "idx" : 58, "nvalue" : 0, "svalue" :"35"}
2019-07-14 10:14:24.699 MQTT: Topic: domoticz/in, Message: { "idx" : 59, "nvalue" : 0, "svalue" :"373"}
2019-07-14 10:14:24.807 MQTT: Topic: domoticz/in, Message: { "idx" : 60, "nvalue" : 0, "svalue" :"528"}
2019-07-14 10:14:37.059 MQTT: Topic: domoticz/in, Message: { "idx" : 52, "nvalue" : 0, "svalue" :"-20.0"}
2019-07-14 10:14:37.162 MQTT: Topic: domoticz/in, Message: { "idx" : 53, "nvalue" : 0, "svalue" :"-20.0"}
2019-07-14 10:14:37.266 MQTT: Topic: domoticz/in, Message: { "idx" : 54, "nvalue" : 0, "svalue" :"-16.5"}
2019-07-14 10:14:37.370 MQTT: Topic: domoticz/in, Message: { "idx" : 55, "nvalue" : 0, "svalue" :"69.5"}
2019-07-14 10:14:39.506 MQTT: Topic: domoticz/in, Message: { "idx" : 62, "nvalue" : 0, "svalue" :"239"}
2019-07-14 10:14:39.618 MQTT: Topic: domoticz/in, Message: { "idx" : 61, "nvalue" : 0, "svalue" :"No"}
2019-07-14 10:14:41.751 MQTT: Topic: domoticz/in, Message: { "idx" : 63, "nvalue" : 0, "svalue" :"Unknown"}
2019-07-14 10:14:43.886 MQTT: Topic: domoticz/in, Message: { "idx" : 57, "nvalue" : 0, "svalue" :"50"}
2019-07-14 10:14:43.993 MQTT: Topic: domoticz/in, Message: { "idx" : 58, "nvalue" : 0, "svalue" :"45"}
2019-07-14 10:14:44.101 MQTT: Topic: domoticz/in, Message: { "idx" : 59, "nvalue" : 0, "svalue" :"453"}
2019-07-14 10:14:44.208 MQTT: Topic: domoticz/in, Message: { "idx" : 60, "nvalue" : 0, "svalue" :"3511"}

[Jeff]

Anyone else stumble on this Connection refused error message when running

Code: Select all

python3 /usr/local/bin/whr930.py

After manual installation (makefile didn't recognize the commands in the file) i continuously am stuck at the following error:
[code************************
* WHR930 MQTT Domoticz *
************************

Traceback (most recent call last):
File "/usr/local/bin/whr930.py", line 272, in <module>
mqttc.connect(MQTTServer, port=1883, keepalive=45)
File "/usr/local/lib/python3.7/dist-packages/paho/mqtt/client.py", line 839, in connect
return self.reconnect()
File "/usr/local/lib/python3.7/dist-packages/paho/mqtt/client.py", line 962, in reconnect
sock = socket.create_connection((self._host, self._port), source_address=(self._bind_address, 0))
File "/usr/lib/python3.7/socket.py", line 727, in create_connection
raise err
File "/usr/lib/python3.7/socket.py", line 716, in create_connection
sock.connect(sa)
ConnectionRefusedError: [Errno 111] Connection refused][/code]

[hesselb]

edit the whr930.py and fill the IDX's, serialport and MQTTserver address.

$ vi src/whr930.py
or
$ nano src/whr930.py

[Jeff]

@hesselb
Already done that, Will check later today with a fresh start.

EDIT:

Just started over with a clean directory: Stil no luck.
It keeps connection/disconnecting to MQTT and a few seconds later it trows the following error:

Code: Select all

pi@VentilationPi:~/StorkAir-Zehnder-WHR-930-Domoticz-MQTT$ sudo python3 /usr/local/bin/whr930.py
************************
* WHR930 MQTT Domoticz *
************************

16-07-2019 20:51:34 INFO: Successfull subscribed to the MQTT topics
16-07-2019 20:51:35 WARNING: Unexpected disconnection from MQTT, trying to reconnect
16-07-2019 20:51:35 INFO: Successfull reconnected to the MQTT server
16-07-2019 20:51:35 INFO: Successfull subscribed to the MQTT topics
16-07-2019 20:51:36 INFO: Successfull subscribed to the MQTT topics
16-07-2019 20:51:37 WARNING: Unexpected disconnection from MQTT, trying to reconnect
16-07-2019 20:51:37 INFO: Successfull reconnected to the MQTT server
16-07-2019 20:51:37 INFO: Successfull subscribed to the MQTT topics
16-07-2019 20:51:38 INFO: Successfull subscribed to the MQTT topics
16-07-2019 20:51:39 WARNING: Unexpected disconnection from MQTT, trying to reconnect
16-07-2019 20:51:39 INFO: Successfull reconnected to the MQTT server
16-07-2019 20:51:39 INFO: Successfull subscribed to the MQTT topics
16-07-2019 20:51:40 INFO: Successfull subscribed to the MQTT topics
16-07-2019 20:51:41 WARNING: Unexpected disconnection from MQTT, trying to reconnect
16-07-2019 20:51:41 INFO: Successfull reconnected to the MQTT server
16-07-2019 20:51:41 INFO: Successfull subscribed to the MQTT topics
16-07-2019 20:51:42 INFO: Successfull subscribed to the MQTT topics
Traceback (most recent call last):
  File "/usr/local/bin/whr930.py", line 283, in <module>
    get_fan_status()
  File "/usr/local/bin/whr930.py", line 197, in get_fan_status
    IntakeFanRPM = int(1875000 / int(''.join([str(int(data[9], 16)), str(int(data[10], 16))])))
ZeroDivisionError: division by zero

OR: 

Traceback (most recent call last):
  File "/usr/local/bin/whr930.py", line 282, in <module>
    get_filter_status()
  File "/usr/local/bin/whr930.py", line 220, in get_filter_status
    if int(data[18], 16) == 0:
IndexError: list index out of range

[BounceMeister]

I have a Stork WHR 91 with a 9-pin serial port on it. Does anyone know if this can be used to control the unit like the 930?

How can i find out which serial protocol is used on the port?

[PiotrekB]

Ok I connect to my zehnder350lux, I can select fan speed, i reed temp and orhers. Bit the temp os cery unstable.. somethime 22*C, 65*C, -25*C itp..
https://photos.app.goo.gl/HqxnUav261h1D9Hj8
https://photos.app.goo.gl/1tNHXB4A3H6kASqK6
https://photos.app.goo.gl/Lmbo5tnTMqunNAQu5
https://photos.app.goo.gl/fFVia3p9ZBybRxDV6
https://photos.app.goo.gl/RZv5vXcSx3wjJ8Xq6
https://photos.app.goo.gl/iay4QLacusSZDrQf7

Where do i serch solutions..