[RELEASE] Heatit Z-TRM2fx Electronic Thermostat Device Handler (Official)

Introducing the Heatit Z-TRM2fx electronic thermostat device handler (DTH)

RBoy Apps is the official SmartThings partner for Heatit products

Heatit Z-TRM2fx is an electronic thermostat for electrical floor heating and cooling. The thermostat has a built-in Z-Wave Plus chipset, with two external temperature sensors (Floor Sensor and Room Sensor). Heatit Z-TRM2fx is equipped with a single pole switch and it fits most System 55 frames (Elko RS16, Schneider Exxact, Gira, Jung etc.). The thermostat can withstand a load of max 13A /2900W at 230V.

WHERE TO BUY THE THERMOSTAT

The thermostat can be purchased from Heatit and Thermo Floor.

Device Handler Screenshots


Key Features of the DTH

  • Support for Eco, Heat and Cool modes
  • Reports Floor Sensor, Room/External sensor and current Thermostat temperature separately
  • Configure different sensor modes (F, A2 and A2F)
  • Reports load details
    • Power (W)
    • Voltage (V)
    • Consumption (KWh)
  • Setpoints for Eco, Heat and Cool mode
  • Toggle display mode on thermostat (Setpoint or Temperature)
  • Configure display and button brightness
  • Configure temperature sensor offset
  • Configure mix/max operating temperature
  • Support for C and F temperature scales
  • Support for new ST app

INSTALLATION INSTRUCTIONS

Device handler installation instructions can be found here. Once the device handler is installed, pair the device with the hub:

PAIRING INSTRUCTIONS

  • Make sure the device is within 5ft of the hub and sometimes rebooting the hub helps before pairing and keep the ST mobile app open
  • Press the center button until the thermostat show OFF
  • Press the down arrow button until the screen shows Con
  • Press the center button and the screen will show On
  • Press the center button until ON starts flashing
  • Press the + button the SmartThings app to initiate the pairing
  • When it pairs successfully it should say INC on the thermostat screen and within 30 seconds the device should show up on the ST app. If it doesn’t show up, reset the thermostat, reboot the hub, bring the device closer and try again

EXCLUSION INSTRUCTIONS

  • Make sure the device is within 5ft of the hub and sometimes rebooting the hub helps before pairing and keep the ST mobile app open
  • Press the center button until the thermostat show OFF
  • Press the down arrow button until the screen shows Con
  • Press the center button and the screen will show On
  • Press the center button until ON starts flashing
  • Start the device removal or exclusion process on the SmartThings app
  • When it pairs successfully it should say ECL on the thermostat screen. If it doesn’t exclude, try to reset the thermostat

FACTORY RESET

  • Keep the Right and Center buttons on the thermostat pressed simultaneously for about 20 seconds

NOTES

  • When in Cool mode use, the External/Room temperature sensor as the floor sensor displays an incorrect value on the thermostat screen

This Device type handler is available on the RBoy Apps Server, http://www.rboyapps.com. Refer to our website or facebook page below for the latest features and to get access to the server.

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Rboy, thank you for this. Heatit is a great product that I had previously integrated with ST using chewing gum and baling wire. Just one clarification: this product, as I understand, is only available @ EU zwave frequency, so by definition the DTH would only work for a ST hub with an EU frequency. Is that correct? Perhaps my understanding is dated.

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Hi there. Yes that’s correct. Right now Heatit products are using EU z-wave frequencies and mostly on 230v. Some products can run on 110v also and when Heatit releases US z-wave frequencies versions the same DTH will also work for those models. We have more Heatit product integrations in our pipeline.

Are you saying that Heatit is planning to release US z-wave frequency versions of their products? If they are, that’d be amazing.

Suppose I should ask them.

Hi!

Do you need to purchase rboyapps access to get this DTH?

Best regards,

Jone

Hi:)

I’m kind of a SmartThings newbie. I’ve got the ST hub v3, and a couple of Heatit Z-TRM2fx thermostats. Today I downloaded the DH and added the script into the webpage as mentioned in the step-by-step guide.

But how do I connect the thermostats to the hub? I might remember that I need to use the Classic-app? Is that correct? Does the thermostats appear in the app when I push the’+’ button and activate pairing mode on the thermostat?

Hi there. That’s exactly correct. After installing the DTH, you need to activate the pairing mode on the thermostat (press the center button until the thermostat show OFF, press the down arrow button until you get to Con and then press the center button to show On and then press the center button until it starts flashing) and press the + button the SmartThings Classic app to initiate the pairing. When it pairs successfully it should say INC on the thermostat screen for a few seconds. Make sure the device is within 5ft of the hub and sometimes rebooting the hub helps before pairing.

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Thank you! :relaxed: I will try this when I come back from the office :ok_hand:

Hi again :slight_smile: I’ve successfully paired the termostats to the ST hub, but I’m not able to control them. What’s wrong?

Do I have the wrong type of Heatit thermostat?

Your screenshots don’t look like the images in the first post. Check that you’ve assigned the correct device handler to your thermostat and that your thermostat model is the Z-TRM2fx.
It’s better to install the device handler and then pair the device. It doesn’t pick up the device handler automatically then your thermostat isn’t Z-TRM2fx.

Hi Maddie,

I have one of the original HeatIt Thermostats (product no. 5430499) as seen here.

Are you working on an ‘official’ DTH for that model please?

Thanks
Guy

I have the exact same issue when trying to pair my device. Same view as @horven is showing here. I have double checked and triple check that this is Z-TRM2fx. Do you have any idea on what could be wrong?

One of these 3 things:

  1. Device handler isn’t installed in the same location where the device is paired (see installation instructions, link in the first post, Steps 1-3)
  2. Device handler isn’t published in the IDE (Step 8)
  3. Device handler isn’t assigned to the device (if ST didn’t pick it up automatically, then assign it manually in the IDE - see the installation instructions after Step 9)
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