Carrier Infinity SYSTXCCITN01 Thermostat Touch Control

Hated the price which makes it hard to give it too high a rating. That said it when used with the proper equipment it provides a powerful energy saving system. The overall system cut my energy cost in half!! With that kind of ROI it paid for itself within about 3.5 years. Not bad. Still as a single piece it seems disproportionate in cost.

We are happy with the touch screen but the app doesn't work well. It is extremely slow and frustrating. If I'm upstairs and wake up being hot or cold, it would be nice to just open the app and adjust the temperature. However, even though I have good internet connection, the app is not working half the time... And have to go downstairs to adjust the temperature. By that time, I'm wide awake and annoyed! My wife has the same issue. We previously had the Honeywell wifi thermostat and had no issue with connection. Carrier should seriously work on their app.

So awesome . . . I was able to install zoning dampers myself because the Touch Thermostat conducts the needed pressure testing (and retests daily). Very cool!!I've had the thermostat for 2+ years. Very flexible programming and the Touch Thermostat tells you how much energy you are consuming for electric & gas. For a couple of months at the end of 2015 Carrier was having a server problem and remote connections at night were a problem if you had the wireless version. But the remote is back to working 24/7. In addition to being able to remotely access on mobile telephones, you can access the thermostat on a computer.Can only use this thermostat with Carrier Infinity Systems and the equivalent version of the Bryant system (Carrier's sister company).

We have had the MyInfinity system for 7 months now. The entire system goes offline for NO reason. Absolutely horrible thermostat and app application.

To contextualize my review, I actively object to most of the features of any internet-connected thermostat. I own this because it was the only option available from my dealer to control my new heating/cooling system.There is no backlight brightness control. The option included sets the level for the backlight when the system is inactive (in case you want to see the temperature, weather - if connected to the internet, or time while walking past your thermostat without having to touch it), but it's always full brightness when in use (and for 30 secobds, unadjustable, after the last touch), which is a bizarre design choice for something marketing itself on the basis of energy efficiency. There's also no manual screen sleep button - you get a full 30 seconds of full-brightness screen time every time you touch it.Because of the design of the automatic heating/cooling switchover, the "heat to" temperature must always be 2 degrees F (not sure if one could do a single degree C) higher than the "cool to" temperature. This creates a dilemma for people who live outside of the tropical zone: the higher sun angle in summer (when you're generally cooling) than winter (when you're generally warming) and thermodynamic properties of gas combine to favor over-cooling just past your target temperature when cooling and over-heating to just past your target temperature when heating to maintain the same actual temperature average, while perceptual differences in relative temperature favor ACTUAL temperatures that are cooler indoors in summer and warmer indoors in winter. However, the requirements for setting the relative heating and cooling temperatures prevent even setting a single target temperature (which my 25-year-old programmable Honeywell thermostat could do just fine), let alone a lower heat-to temperature than the cool-to temperature (which is ideal; best case would be allowing setting of a single nominal temperature, determining if heating, cooling, or a fan-only mode should be used based on the difference between the nominal temperature setting and the exterior temperature, and then cooling to a degree or two below that or heating to a degree or two above). As implemented, the automatic mode switch either requires a rather large temperature range, which doesn't maintain a consistent comfortable temperature, or potentially wastes large amounts of energy by actively heating or cooling in opposition to its own previous active heat/cool operation (as opposed to selecting mode based on the outside temperature and then only cooling or heating, with passive heat transfer bringing the interior temperature closer to the exterior temperature until the threshold interior temperature is passed, as happens with a manual system). So, to me, since I can't achieve the same comfort and consistent temperature with the automatic mode change as with manual mode change, it's a useless feature, as I'll still need to use manual temperature control (and, as a bonus, I'll save energy).The profiles work well enough, except for the auto mode switch issue noted, but I don't consider them much of a plus, since I never considered manual adjustment even slightly onerous in the first place. The on-device scheduling is less than ideal: I, for example, typically go to sleep between midnight and 2 am, waking between 8 and 10 am. However, the sleep and wake times are only selectable in 15 minute intervals by pushing an up or down button (why no keypad entry or individual digit - or even seperate hour/minute - selection?), and setting them for my schedule is IMPOSSIBLE. The latest sleep time available is 11:45 pm, and the earliest is limited by the wake time setting, so it's actually impossible for me to set a 2 am sleep time with a 10 am wake time. The closest I can get is setting an 11:45 pm sleep time and then entering a manual hold every night that I'm up later (and maybe re-entering if I think I'll go to sleep at 1 but then stay up until 2), which requires MORE manual adjustment than simply turning down the thermostat manually when I go to bed. So, I'm not using the schedules at all.The filter replacement timer is handy, but not worth hundreds of dollars when my phone can already give me an annual reminder from now until forever.I can't speak to any of the internet-connected features, since the very last thing I'm going to do is connect a device that tracks whether anybody is home - and promotes a "vacation" feature, telling anyone who gains access that you plan to be gone for, say, two full weeks - to the internet.These are just the problems I've noted using the thing for the first time, trying to set my climate control profiles and a basic schedule for them (which I cannot do for the noted reasons). Based on this precedent, there are likely more design errors related to the other functions.My main recommendation is to not get a "smart" thermostat at all, but if you must, and the model is an option rather than a necessity (thank you proprietary software and signaling, another garbage aspect of this device in particular, and Carrier's control system in general), pass on this and get something much, much cheaper, and probably better. Really, though, this is rarely more useful and often actively less useful (and more energy-intensive) than my previous, ancient programmable thermostat, or even manual adjustment of the physical dial thermostat I had before that. And the worst part is that nearly every problem I've mentioned is an issue with the design of the software, so they COULD all be fixed, easily, for every existing device, but they won't be, because they are intentional, poorly-reasoned design decisions.

This can’t be controlled from an IPad. The Adobe used is not supported by Apple and the app only takes one of my two thermostats. For that reason alone Carrier is behind. The technology in this thermostat is very advanced but why they limited it to certain operating systems is why I suggest getting a different system. I can’t even change to a different brand because then the whole system will not run properly and assist in running at peek performance.

My previous unit messed up just before a cold spell. I am very grateful this item was shipped sooner than expected that allowed my and my 3 young kids to have heat during the first freeze of winter.

This thermostat was installed in my house one week ago. The app for the iPhone is erratic at best. Other reviews address this issue well so I will not dwell on it other than to say that the app can, under some circumstances, lock up and log you out permanently. This happened last night, and I can no longer access the thermostat via the app. Worse, I can no longer adjust non-temperature set points on the thermostat itself (like humidity level etc.). The PIN is required and it mysteriously changed. It is like having Hal 9000 from 2001 Space Odyssey running our AC. I have to shut the breakers off to stop the AC running. This brings me to the topic of Carrier customer "service".The so called "Senior Analysts" who you have to wait on hold for know less about their product than I do. It was ridiculous, they had nothing to suggest at all. They have no clue how to reset a PIN (not sure they even knew what a PIN is). They referred me to their hardware people. The hardware people were busy, I was told (when you build such poor products this is no surprise really). I was told I would get a call back in 10 minutes, they were careful to get my number right. 2.5 hours later no call back. I called back and the are closed for the week. So I get Hal 9000 for the weekend. The product is very poorly designed and poorly supported. I haven't been this aggravated by a product since I can remember. Avoid this.