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-   -   Honeywell redlink vs Honeywell wifi t-stats (http://www.diychatroom.com/f17/honeywell-redlink-vs-honeywell-wifi-t-stats-185263/)

raylo32 08-14-2013 10:20 AM

Honeywell redlink vs Honeywell wifi t-stats
 
I have been using a Filtrete wifi stat with my 2-stage heat 1 stage a/c split system for a couple of years and it works OK, but I was thinking of upgrading to a Honeywell, primarily for the better local thermostat interface. The Filtrete is a PITA to program on the stat itself. I can do it, but no one else can, whereas the Honeywells have a much cleaner and useable interface.

Anyway... I see Honeywell is now offering standalone wifi stats in addition to the Redlink type (that require the Redlink gateway). Is there any technical reason to prefer one over the other? I have good wifi connectivity where my stat goes so that is not a potential problem.

One thing I saw about the Redlinks intrigued me... if I read the info correctly they have optional remote duct temp sensors that can be placed before and after the coil/heat exchanger to provide split temps. Sure would beat having to pull out the instruments and allow more frequent monitoring. Anyone set one of these up like that?

hvactech126 08-14-2013 05:42 PM

The redlink stats allow for greater control and add-ons when you install an outdoor sensor and you can add on remote indoor sensors or entry/exit remotes or portable comfort control, or many other things. I have mine setup with the sensors (return and supply) You can not view this info online or graph it, but there are diagnostics that the stat can be setup to alert you if split temps don't meet what you have alerts setup for. The only versions that allow you to do the splits are the IAQ versions.

It's more expensive, but I like the redlink systems better than the wifi.... for simplicity though you can't beat only one device for simple web control.

raylo32 08-14-2013 06:32 PM

Thanks for the info... I don't really need the IAQ contacts but I see that you are correct, must get a Prestige IAQ to be able to connect and display the remote temp sensors. This kit at PexSupply looks like it would fit the bill... Yes, I know I'd have to also order the Redlink gateway... although I don't really need the EIM to connect on the furnace end. I assume that the stat also has the regular wired terminals and my stat wires are in good shape. But I expect getting the pieces a la carte (to delete the EIM) would cost at least as much as this kit. I think I'll call Pex and see if they would credit me something to delete the EIM.

http://www.pexsupply.com/Honeywell-Y...2-Duct-Sensors

BTW, how long do the batteries last in the remote duct sensors and remote ODT/humidity sensor?

hvactech126 08-14-2013 07:45 PM

A few things....on the iaq version there is only terminals for R & C. The duct sensors are hardwired. My odt uses lithium AA batteries and has lasted over a year. My remote indoor sensor uses AAA alkaline batteries and has also lasted over a year. When the batteries get low an alert is set on the screen to tell you they are low.

raylo32 08-14-2013 07:58 PM

Ok, then, so I guess you need the EIM! I believe I saw on the non-IAQs that they also had standard terminals.

One final question... the duct sensors are hardwired to what? For just power (I assume 24v) or do they also need to be wired to either the stat or the redlink gateway for the signal?

Quote:

Originally Posted by hvactech126 (Post 1229363)
A few things....on the iaq version there is only terminals for R & C. The duct sensors are hardwired. My odt uses lithium AA batteries and has lasted over a year. My remote indoor sensor uses AAA alkaline batteries and has also lasted over a year. When the batteries get low an alert is set on the screen to tell you they are low.


hvactech126 08-14-2013 08:07 PM

Yes... the standard version has the normal terminals. The duct sensors are hardwired to the EIM.

raylo32 08-14-2013 08:13 PM

Ah, that makes more sense. I really like the idea of the duct sensors. And with the IAQ version I could eventually swap my Aprilaire humidifier over to be controlled by the stat if I want to.... although I am pretty happy with its standalone digital control for now. Thanks for the help!

Quote:

Originally Posted by hvactech126 (Post 1229369)
Yes... the standard version has the normal terminals. The duct sensors are hardwired to the EIM.



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