Name: Honeywell YTHX9421R5127WW Prestige IAQ Redlink Internet Gateway Thermostat Kit
Brand: Honeywell
SKU: 36LJO6HUGKCM
Price: 459.99 CAD
Availability: OutOfStock
Rating: 3.2 (60 reviews)

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Honeywell YTHX9421R5127WW Prestige IAQ Redlink Internet Gateway Thermostat Kit

Smart Schedule, programs in seconds for any lifestyle | Patented interview based programming and installer setup | Redlinktm Wireless communication | Redlink Wireless communication | 2-Wire iaq high definition color touchscreen white front/white side thermostat with redlink technology

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The Prestige IAQ thermostat is a 2 wire high definition color touch screen thermostat, 7 day programmable and selectable for residential or light commercial use. Controls up to 4-stages of heat and 2-stages of cool in a heat pump system and up to 3-stages of heat and 2-stages of cool in a conventional system. Three sets of Universal IAQ contacts to control humidification, dehumidification, and ventilation. Four sensor inputs for wired sensors or dry contact devices. Works with the Equipment Interface Module and RedLINK accessories including the RedLINK Internet Gateway, Portable Comfort Control, Wireless Outdoor Sensor and Wireless Indoor Sensor. Increase profit per job by including RedLINKTM accessories that provide comfort and convenience. RedLINKTM accessories include the RedLINKTM Internet Gateway, Portable Comfort Control (PCC), Wireless Outdoor Sensor, Wireless Indoor Sensor, Wireless Entry/Exit Remote, Wireless Vent and Filter Boost Remote, TrueSTEAMTM humidifier with Wireless Adapter and TrueZONE zoning panel with Wireless Adapter. Selectable for residential and light commercial applications. Meets commercial code and is title 24 compliant. Light commercial - commercial language (occupied and unoccupied), schedule holidays and custom events, remote setback, economizer and time of day.

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Had 2 of these Wi-Fi thermostats installed with new furnaces/AC about 6 years ago. More recently, I bought the Wi-Fi gateway (RedLink) and linked both thermostats for remote access.  Easy peasy, and works flawlessly so far.

Prestige Wi-Fi thermostat

resideo.com

I have had the Prestige IAQ thermostat used on a system that is 8 years old and it has worked without any problems.
When I had to replace my second system, I had the same model installed on it and it works just as the old one does.
One of the things that I liked was the ability to have a separate schedule for electricity time of use rates.   My electric coop offers a discount during nonpeak times ( peak times are 2 hours in summer and 2 hours in the winter Monday thru Friday excluding holidays).   I am able to have this schedule that works with my normal schedule so I can reduce my bills.
If you want to be able to control your system by phone or tablet, you need to have the redlink modem.   
I like being able to see the outdoor temp and humidity easily on the color touch display.

Installed this thermostat with new system

Maria

Thermostat and all the attached gadgets work fine.  It's a really complex system with quite a few pieces of equipment in the kit that seem to work together quite well to control my Lennox HVAC systems and attached humidifier units.  Two things that I wish were better.  Communication is a tad bit slow as you enter your setting in the app and/or the thermostat unit, and it takes about a minute to kick-in.  I figured it was due to all the complex set of gadgets that need to communicate with each other before the new setting takes effect.    I replaced my nest 3rd gen thermostats with this one to be able to better control the whole house humidifiers and while these thermostats do the job pretty well the app interface is absolutely terrible and needs work.  Honeywell - please model your app after nest or similar.  Those are great looking and very user friendly.  Why does your app include a ribbon for Rebates?  I don't want to see that on the main screen at all.  If interested, I will visit your website for rebates and making more purchases.  I don't want to be reminded everyday to check for "Rebates" with a perpetual ribbon that occupies a significant portion of the main screen.  Please, please fix this!!!

Expensive, OK thermostat; Unimpressive App!

We've had one of these thermostats installed in our new house for about 3-4 years now.  Our system has two stages of cooling and four stages of heating.  It's hard to find anything to support four heating stages.  The thermostat does an excellent job of holding the house temperature at the desired setpoint.  The caveat is that every now and then it will freeze and fail to command our heat pump to heat or cool.  This necessitates that I go down to the air handler and turn off the power, wait a short time then power it back on (rebooting the thermostat).  I'd give it five stars if it were not for this.

Great but with a caveat

As a HVAC technician I have in stalled close to 100 of these stat as well as other brands , and the stat it self has very good control of space conditions and is one of the best on the market for control and accuracy of temp, but can y'all please do something with the mobile app!! As soon as the customer see the app the are instantly disappointed and sometimes we end up having to put in another brand (the round ones) just because the customer was so turned off by the app design.

Great Stat, App is seriously lacking an update !!

The thermostat does a good job of controlling temperature and humidity if you live in a humid area.  The one drawback is there is no way to adjust temperature swing.  It is set to 1 degree fixed at the factory so your temp can go up 1/2 degree and down 1/2 degree only!   So your system comes on and off unnecessarily and you loose efficiency.  There is no way to change it!   I can use an Ecobee thermostat and change the swing to 2 degrees so temp can go up 1 degree and down 1 degree making the system much more efficient.  You don't even notice the 1 degree difference.  Monthly report emailed by Honeywell is useless too.  You just get number of hours used for heat and number of hours for cool.

Lacking in one important feature, Temp swing!

I had a new heat pump installed and this thermostat was installed. By all appearances it is advanced and works great. Unfortunately the TCC app is severely outdated and is mediocre at best. Everything from appearance, to graphics, to design and use require an upgrade. It functions but barely and is clunky at best. Why not simply program this thermostat to work with the vastly better designed Resideo app that works with other Honeywell products?

Most importantly though, the thermostat limits my scheduling periods to only two per day - Wake and Sleep. Am I really not able to customize and add more periods within a given day? Most thermostats allow this. What a letdown.

Severely outdated App and limited scheduling

Joey

Remote programing app states it may take and hour to upload, and may never upload. This is only 7 day programable, not 365 day that it replaced.

Not a 365 day programable unit.

Very disappointed in redlink. The app does not support 365 programing and takes hours to upload program cycles from thermostat to phone app.

Very poor Redlink remote programing

Brand new house. Brand new everything. This thermostat is terrible.  No clue what temperature it's reading as it's nearly 10 degrees off.  Been 30 days and it's going in the trash.  Wifi not standard. Very misleading features.  You can change the colors.  Your fingers will move faster than the screen- so you have to be slow and deliberate with actions.  Came to this website specifically to leave a review that this is trash

Probably good in 2008

Honeywell YTHX9421R5127WW Prestige IAQ Redlink Internet Gateway Thermostat Kit

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