Author Topic: Honeywell T6 Pro Z-wave  (Read 600 times)

Offline tinman

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Honeywell T6 Pro Z-wave
« on: September 11, 2018, 01:54:05 pm »
Has anyone linked this device to a Vera hub? I'm considering buying one and hoping that because it's Z-wave I'll have no trouble adding it to my Vera Plus. I'm not that interested in controlling it that much at first. What I really want is to monitor it. I want to know when it's calling for heat (distinguishing between heat pump and backup) or cooling. I want to try to gauge efficiency between heat pump and oil backup at different outdoor temperature and be able to recognize if efficiency changes.

Offline Maegda

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Re: Honeywell T6 Pro Z-wave
« Reply #1 on: September 12, 2018, 03:49:09 am »
Hello tinman,

Though this model is not listed on Vera compatibility page compatibility page I saw it added on a Vera and it was working.

Have a good day,
Vera Control, Ltd.  Smarter Home Control
support@getvera.com  +1 (866) 966-2272

Offline tinman

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Re: Honeywell T6 Pro Z-wave
« Reply #2 on: December 02, 2018, 11:20:07 am »
I've purchased one of these and it works well for controlling my heat pump/oil heat HVAC. However it's not really fully supported in Vera. I had to add it as a generic zwave device. It's recognized as a Honeywell thermostat but I don't think Vera properly supports the command class versions implemented by this thermostat. My main complaint is that the UI doesn't support the selection of Emergency Heat. It also displays 'heating' when it's actually in emergency heat state. Even the variable names in the device variables tab are confusing:
1) ModeStatus - this seems to be the mode setting, which I think relates to the COMMAND_CLASS_THERMOSTAT_MODE. In the Z-wave spec this is called the Thermostat Mode
2) ModeState - this is actually the current operating state; COMMAND_CLASS_THERMOSTAT_OPERATING_STATE - Thermostat Operating State
3) Mode - This appears to be the fan operating mode setting.

The variable names confuse the difference between mode settings and operating state. I don't thing there is a variable that shows the fan operating state. My goal in replacing my existing Honeywell programmable thermostat with a z-wave model was so that I can monitor when my heater is using the heat pump vs when it switches to oil backup and how long it is in each state. I can't actually do that. This thermostat also has an external temperature sensor which it uses to determine when to switch to emergency heat. The current Vera interface reports the internal temperature but not the external temperature.

This is not a new model thermostat. It's been available for a couple of years. Honeywell is listed as one of Vera's Certified Device Partners and their web page guarantees that Vera will work with their devices. I guess it depends on your definition of 'work'.  I just bought a CentraLite appliance module and that doesn't work either.