Support Heatit Thermostat HEAE5430499

Discussions about RaZberry - Z-Wave board for Raspberry computer
anesthesia
Posts: 16
Joined: 28 Mar 2016 21:30

Re: Support Heatit Thermostat HEAE5430499

Post by anesthesia » 04 Oct 2016 22:51

Is it normal behavior that the Temperature Sensor (using the air sensor) of the Heatit Thermostat is showing the same value as the setpoint?
It is working correct, heating until the setpoint temperature is reached, but over z-wave i cannot read the current air temperature. Using z-way 2.2.3 and Heatit with Firmware 1.8.

Sonic43
Posts: 6
Joined: 12 Dec 2015 02:21

Re: Support Heatit Thermostat HEAE5430499

Post by Sonic43 » 08 Oct 2016 00:33

Same problem, I cannot read air temperature but only setpoint. Should it more than one sensor existing in the termostat device?

Sonic43
Posts: 6
Joined: 12 Dec 2015 02:21

Re: Support Heatit Thermostat HEAE5430499

Post by Sonic43 » 09 Oct 2016 04:02

After some research I am suspecting now that it is something wrong in the firmware of termostat. F/W I have is 1.8.

When I executing command

http://zway:8083/ZWaveAPI/Run/devices[2 ... 9].Get(-1)

Where 24 is my termostat device ID, 49 is COMMAND_CLASS_SENSOR_MULTILEVEL_V2

I can see in the log:

[2016-10-09 02:55:10.922] [D] [zway] SETDATA devices.24.instances.0.commandClasses.49.data.1.scaleString = "°C"
[2016-10-09 02:55:10.923] [D] [zway] SETDATA devices.24.instances.0.commandClasses.49.data.1.val = 23.500000
[2016-10-09 02:55:10.923] [D] [zway] SETDATA devices.24.instances.0.commandClasses.49.data.1 = Empty


And 23.5 is termostat setpoint, you can get it with this command http://zway:8083/ZWaveAPI/Run/devices[2 ... 67].Get(1)

[2016-10-09 02:57:23.320] [D] [zway] SETDATA devices.24.instances.0.commandClasses.67.data.1.precision = **********
[2016-10-09 02:57:23.320] [D] [zway] SETDATA devices.24.instances.0.commandClasses.67.data.1.deviceScale = 0 (0x00000000)
[2016-10-09 02:57:23.320] [D] [zway] SETDATA devices.24.instances.0.commandClasses.67.data.1.deviceScaleString = "°C"
[2016-10-09 02:57:23.320] [D] [zway] SETDATA devices.24.instances.0.commandClasses.67.data.1.val = 23.500000
[2016-10-09 02:57:23.320] [D] [zway] SETDATA devices.24.instances.0.commandClasses.67.data.1.setVal = 23.500000
[2016-10-09 02:57:23.321] [D] [zway] SETDATA devices.24.instances.0.commandClasses.67.data.1 = Empty

BTW, Can we add to the XML describing device all specific setting for command class 112?

anesthesia
Posts: 16
Joined: 28 Mar 2016 21:30

Re: Support Heatit Thermostat HEAE5430499

Post by anesthesia » 09 Oct 2016 10:05

It seems to be a firmware change in Version 1.8:

http://heatit.com/onewebmedia/Principle ... 2016-A.pdf
TEMPERATURE SHOWN IN DISPLAY The temperature shown in the display is the actual temperature for fl oor sensor and the external room sensor. You are able to calibrate the sensor values. When using the internal room sensor, the temperature shown is the set point. Due to the internal heat buildup in the thermostat, we do not recommend to use this function. This makes the thermostat sensitive towards draft in the connection box.
I connected the 10k NTC Sensor cable to external sensor and changed to external Sensor A2. Now the shown temperature in the display and in the Zwave temperature are the actual measured air temperature.

Sonic43
Posts: 6
Joined: 12 Dec 2015 02:21

Re: Support Heatit Thermostat HEAE5430499

Post by Sonic43 » 09 Oct 2016 13:07

Damn!
"TEMPERATURE SHOWN IN DISPLAY The temperature shown in the display is the actual temperature for fl oor sensor and the external room sensor. You are able to calibrate the sensor values. When using the internal room sensor, the temperature shown is the set point. Due to the internal heat buildup in the thermostat, we do not recommend to use this function. This makes the thermostat sensitive towards draft in the connection box."

This should be readed as - "Due to our fuckup internal air sensor is unreliable and cannot be used.Please use external air sensor and find place for it, pull the cable and etc"

I have wooden floors so I have to use both sensors, floor one have to be limited to 27C. In my firmware version they have A2F option in the sensor menu, which is not documented. Seems like it is combination of external floor sensor and external air sensor added in the latest firmware.

I was supposed to install 8 of those thermostats around the house and I am seriously doubt about it.

Sonic43
Posts: 6
Joined: 12 Dec 2015 02:21

Re: Support Heatit Thermostat HEAE5430499

Post by Sonic43 » 09 Oct 2016 15:01

At the moment I ended up with buying bunch of 10K NTC resistors from ebay to try to use them as external air sensor. I installed all my wallboxes for termostats on 1.5m height from the floor and had no plans to use external air sensors at all.

Those resistors are small enough to be mounted outside the decorative frame I guess it should not be very visible when painted white :)

I guess they forgot that heat coming from display backlight, CPU and Zwave board will influence internal air sensor.

They have removed any notices regarding internal air sensor from the specification on the website http://www.thermo-floor.no/thermo-floor ... t-ral-9003 you can see that only external "romføler" is specified. I guess this should stated more clearly and visible in the product description.

ji.ondrak
Posts: 1
Joined: 20 Feb 2017 22:03

Re: Support Heatit Thermostat HEAE5430499

Post by ji.ondrak » 20 Feb 2017 22:12

Sonic43 wrote:At the moment I ended up with buying bunch of 10K NTC resistors from ebay to try to use them as external air sensor. I installed all my wallboxes for termostats on 1.5m height from the floor and had no plans to use external air sensors at all.

Those resistors are small enough to be mounted outside the decorative frame I guess it should not be very visible when painted white :)

I guess they forgot that heat coming from display backlight, CPU and Zwave board will influence internal air sensor.

They have removed any notices regarding internal air sensor from the specification on the website http://www.thermo-floor.no/thermo-floor ... t-ral-9003 you can see that only external "romføler" is specified. I guess this should stated more clearly and visible in the product description.
Can you send me a link to external NTC sensors you use? I can not find correct thermistors :( Did you buy it on Ebay?

anesthesia
Posts: 16
Joined: 28 Mar 2016 21:30

Re: Support Heatit Thermostat HEAE5430499

Post by anesthesia » 20 Feb 2017 22:53

You can use every 10k Ohms NTC. I used a normal part with 2 contacts and screw it at the thermostat. There are cheap ones you can find at ebay. Use some electric tape to separate the two contacts.

venicenerd
Posts: 11
Joined: 10 Apr 2018 23:42

Re: Support Heatit Thermostat HEAE5430499

Post by venicenerd » 10 Apr 2018 23:47

Hi,

I'm wondering if the HeatIt Z-Wave Thermostat is now fully supported with Z-Wave. I would like to use the Thermostat to control our floor hearting which has an external sensor. So it is important for me that the Z-Wave will be able to read and control the external sensor. Not the built in Air Sensor. Is this possible?

Last but not least I am wondering if this would also be fully compatible with the "Apple HomeKit Gate" plugin so that I could control the temperature of the external sensor via Siri. If that is the case the combination of HeatIt with Z-Wave would be the perfect solution for me!!!!

I'd be extremely grateful for any insight before I purchase all the hardware.

Thanks,

Philipp

Post Reply