Heatit z-trm3

Configuration Z-Wave
1

Hi!

Is anybody using the new termostat heatit z-trm3 in qt-openzwave?
I have included it and it’s included as “unknown node”. I’m not able to set target temperature, but I can toggle on/off, aswell read sensor values.

I have two power sensors and I’m not sure what these mean? Why is there two kwh meter reports with different values?

sensor.topfloor_bathroom_floor_electric_kwh: Value 9.2
sensor.topfloor_bathroom_floor_electric_kwh_2: Value 5.2

2

I also have the issue.

The Heatit is currently not in the ozw1.6 device database. The database is maintained mainly by people editing the device xml file and submitting it to the maintainers.

the 1.4 DB is a different db from 1.6 and no one has done the work to include the Heatit devices to the OZW 1.6 db yet. Devices will show as unknown on the openZwave beta but will mostly functional due to it being zwave common protocol.

you can see the ozw db in the link below:
OZW 1.6 device db

3

Thanks for your answer.
Do you know why there are 2 instances of power reports and which one to use to calculate cost?

4

Not sure to be honest. I haven’t really tested my unit since we are in the summer.

5

It looks like support has been recently merged: https://github.com/OpenZWave/open-zwave/pull/2364
Regarding two sensors with power readings - in my system only one of then changes when I toggle the floor, another one remains static. So that one should be used, in my case sensor.thermofloor_as_unknown_type_0003_id_0203_power

6

I have added 2 Heatit z-trm3 thermostats to a TellStick ZNet Lite v2 and added them to HA with the Telldus Live integration. I can get information of the power consumtion, the temperature and if they are heating or not. I can also create an automation that turns them off using an action similar to:

action:
  - type: turn_off
    device_id: id
    entity_id: switch.fh_kitchen_master
    domain: switch

What I cannot do is to create an automation that turns them on using a similar action as above but with type ‘turn_on’. Then I get the following error in the logs:

Logger: tellduslive
Source: /usr/local/lib/python3.8/site-packages/tellduslive.py:351
First occurred: 19:19:17 (2 occurrences)
Last logged: 19:19:18

Failed request: Device "8921253104" does not support method "1"
Failed request: Device "8951221109" does not support method "1"

Anyone else seen this?

7

Had the same issue!
But i solved it by making a dummy switch in telldus. Then connect “on” and “off” to a event in telldus.
Dummy switch is then ready to be connected to any automation in Home assistant.