[Resurrected] Advanced Honeywell T6 Pro Z-Wave Thermostat Driver

With an Outdoor air temperature sensor installed and enabled in the Thermostat settings. Is there anyway to get the reading of the outdoor air temperature in the driver?

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I don't think this is possible, but I am tagging @bcopeland, who will know for certain.

The device doesn’t send this data… I tried, bought a compatible sensor hoping it would work.

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Thanks @bcopeland it is nice to have a definite answer. I can live with this outside temperature not being reported over zwave. But I find it hard to believe that it is also not possible to view this temperature anywhere on the thermostat's screen.

@aaiyar do you use this thermostat or do you have a different one that you prefer to use with HE. I need outdoor temperature since I use a heat pump in a dual fuel setup.

Thanks.

I did for sometime. Then switched to a GoControl thermostat because it gave better staging control. In my new house, I currently have a Nest but will be switching to an ecobee when the HVAC is replaced in a month.

Makes good sense!

Nice… Ecobee has promised matter firmware update

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Not sure if it helps you or not, but with the Sinope thermostats I display outside temp on them with the zooz temp sensor on my front porch (you can use any temp source). Not sure these will work for your current HVAC. I also use the Honeywell T6 Pro z-wave and have several sources for outside temp but honestly I just look at my phone homepage to see the temp in my back yard. I don't really care that it's not on my thermostat...(that's just me though)

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I also have many sources for outside temperature, but I do not know how to feed this into the Honeywell T6 thermostat. Do you know a way? As I mentioned in my post above, my T6 thermostat needs this outdoor temperature data to apply the "Balance Point (Compressor Lockout)" feature of the T6 thermostat. The thermostat requires this since it is set for duel fuel (heat pump plus gas furnace).

I have the outdoor temperature sensor of the T6 hooked up. I also know it is working since the thermostat is able to apply the Balance Point I have selected in the thermostats settings. Having said this I have no way of knowing how accurate this temperature reading is and/or if I need to calibrate it, since I have no way of knowing the temperature that the outside sensor is reading. I know it is close as the compressor lockout temperature appears to take place close to the outdoor temperature I have it set to.

Ad @bcopeland said, I don't think there is a way. There may be a way to do offsets in the thermostat's ISU settings. (you obviously would want to compare to another temp sensor). I mean, best you can probably do is throw another temp sensor outside and hope it's close to the one on the thermostat...

I have several outside temperature sensors already installed. How do any of them help me with my problem? How would another temp sensor outside do anything to address my problem or interact in any way with what my thermostat is required to do?

How do you figure I can do a comparison when there is no way to know the outside temperature that the T6 is receiving from its own outside temperature sensor?

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To check the sensor itself, you can program it as "inside temperature" (500, 515, 520), then see it displayed on the screen. When you finished simply reprogram it to outside and set 500 to NO.

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I'm running and oil based steam boiler on my T6 Pro. I'm having an issue here that is boiler related, but I'm going to ask my question here:

I am wanting to set something up so that the boiler will cycle on every X minutes (where X might be 60, 90, 120) and run for 10 minutes. My question is if there is a setting that I'm not seeing in the driver that would allow for this?

I'm not sure how to even configure this in rule machine.

I am unfamiliar with steam boilers, however my hot water boiler is controlled by the Aquastat on the boiler itself. The thermostat only controls the circulation pumps.

Does a steam boiler have an Aquastat of some sort? If so you would have to keep that into consideration.

There's nothing in the driver.

The T6 thermostats use Cycles Per Hour (CPH) to determine how often to run and for how long.

You can try using the Thermostat Controller app and rule machine to do what you are asking for.

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If I were trying to achieve that I'd have a timer that turns on for 10 minutes per hour, like a lamp timer style, have the output of that timer go into a relay that's activated by the thermostat, so if you're already at temp it doesn't fire. I'd also probably have a second relay that's not inline with the timer hooked up to the emergency heat or secondary heat line from the thermostat to allow direct/prolonged firing for situations like you lost power for an extended period of time and need to raise the temp quickly.

Just started using this driver - much easier to set those ISU!

are you interested in supporting 390/391 (ext fan run time cool/heat) ?

And, when setting 253 (aux/e control) to either aux or e, can you make a Command button for AUX appear ?

Also, do you know how this thermostat can support/behave like dead band? I used to use the CT50 to not kick on the heat pump until the room was 2 degrees cooler than the set point. I see in the 303 description (auto-differential) that says it uses an advanced algorithm that fixes deadband at 0F. I feel like that'd be a bit of mess to implement with RM. but could be cool too because RM is fun.

Thermostat Controller app should be what you are looking for.

Is there any setting on the t-stat or something else that you can think of that would cause my S Hallway stat to have sooooo much more usage and events?

It is the only device that triggers alerts:

Is it on battery or wired? Weak battery could cause something like that due to retransmissions.

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They are both on mains with batteries installed:
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