When the temperature reaches 68, the stat shuts the heating unit off because it "anticipates" that gotoman for ac : Waiting for feedback. Two thermostats into one Nest - Will my setup work? They do work together. Look at the furnace side for a C terminal. I have a unit with 2 thermostats. Most new thermostat units are compatible with heat pump thermostats, baseboard heater thermostats, furnace thermostats and boiler thermostats. In this case, the thermostat would likely control the opening and closing of the heatings vents. I'll need to relocate the AC thermo wires from the attic (easy) and feed them next to … One Heating and AC Unit - Two Thermostats Hello, I purchased a nest thermostat and was looking forward to the install when I realized that my upstairs thermostat only controls the AC and the Fan of my HVAC unit and the downstairs thermostat controls the heating portion of the my HVAC unit. New comments cannot be posted and votes cannot be cast. I am using nest thermostats Can I wire the system as such, or is that outside the Nest's capabilities? So if you currently have two thermostats, then you could choose to just replace one of them with a Nest, and keep the other one as a standard thermostat, or you could replace both each with a Nest. With proven energy-saving features, the Nest Thermostat E can help you save from day one. I connected them and everything works fine. I'm looking at adding a Mini-split heat pump system to the main area to take over 'comfort heat' duties in the winter, using oil only as a backup. If you decide to use the Nest Thermostat in your house, you are not limited to one device. trying to figure out an issue with a nest thermostat. Not only does this let you control temperature readily, but the unit is also able to understand your pattern. Read our full Nest Thermostat E review . Thermostat Nest Learning Thermostat™. I have two old thermostats (one for heating, the other for cooling) that I would like to replace with a single Nest E unit. The zone controller then powers the dampers and controls the AC/furnace/air handler. I open the thermostat and see the jumpers, but is there a way you can illustrate my brain and the correct set up I have an Amana 16 seer 2 stage 5 ton units and no one seems to understand this unit, I have central air and gas heating. Nest Thermostat-ENERGY STAR® Meet the Nest Thermostat E: Its simple design and new frosted display blend into the background. Heat (2 wires): Red - Rh White - W. From everything I've seen it seems doable and fairly straightforward, I just haven't seen the exact same wire … I'm trying to figure out if i can combine two separate thermostats (1 gas heater for baseboards + 1 AC) into one Nest unit. Two-Stage Furnace Air Conditioner Thermostat Control Problem | Hi I was wondering if you can help me with a two thermostat… because I don’t think my condenser is using the second stage…. I have 2 separate thermostats, one for heat and one for central air. Just purchased a newer two-story house (2018) that has a thermostat on each floor, but just one AC unit and one air handler. Let it run at this setting for awhile, maybe an hour, to get the Nest battery charged up. ). 0. Granted, it only costs $19.99, and I received one with the review unit, but it’s a frustrating extra cost for anyone else. Discussion on Google Nest products, including installation and configuration. Plus in the summer I'll have AC, bonus! I'd like to use the Nest to control this, using the oil as 'aux' heat should the temp drop below a panic threshold if the heat pump isn't up to the task, or if we loose power and I cut over to generator. Press question mark to learn the rest of the keyboard shortcuts. 2 I used one of those and connected it to the C on the nest and also connected it to the board where the other C wire was connected (gives thermostat power) and it works perfectly. However, if you're only interested in getting one Nest, you can have a Nest for one system, and a non-Nest for the other. The stat will tell the heating unit to start. Off the furnace one of each of these colors, red, green, yellow, white. ?). The Nest Thermostat E is only compatible with one stage of heating, one stage of cooling, and an additional stage of either heating or cooling. Heating thermostat has these connections: R (Rh and Rc are jumped) and W One upstairs and one downstairs. Stage one heat and cool means you have units that work either at full capacity or not at all, it’s like an on/off switch. The smart thermostat with the most features: Johnson Controls Glas Our house is pretty inefficient in terms of insulation, and it gets very hot in the summer and cold in the winter. 2. We had a power outage a couple days ago and the upstairs thermostat is blank. Standard, single-speed air conditioners pair well with most off-the-shelf smart thermostats like NEST and Ecobee. Based on the other info I've gotten, it seems the XC21 is spec'd out correctly as far as tonnage (5) and SEER (21) go. However, if you're only interested in getting one Nest, you can have a Nest for one system, and a non-Nest for the other. Crank the thermostat down to offset the natural warming in upstairs living spaces and it’s too chilly downstairs. If you have more than one thermostat for your low voltage system (for example, one upstairs and one downstairs), Nest’s Thermostat-E makes the most sense. Nest 2 Stage Thermostat Wiring Diagram | Wiring Library – Nest Thermostat Wiring Diagram For 2 Stage Cooling 2 Stage Heat Nest thermostat is the next generation of heating and cooling apparatus. Is a two stage AC worth it? Part of set-up includes creating temperature presets and a schedule for the Nest Thermostat to cycle through. And you can change the temperature from anywhere the beach, the office or your bed. I would like to convert the thermostats to Nest, but am unsure what is likely going on here (single zone with two controllers vs. electronic dampers vs. Is my HVAC system one or two transformer based? New comments cannot be posted and votes cannot be cast. I would like to convert the thermostats to Nest, but am unsure what is likely going on here (single zone with two controllers vs. electronic dampers vs. On a side note, the salesman said I would NOT be able to use my Nest thermostat with the XC21 because there's some kind of humidity controller in the unit that the Nest won't be able to control. Make sure each thermostat has a C wire. What you need to do to control the temp in that room is install a zone system. Press J to jump to the feed. Cooling thermostat has the following connections: R (Rh and Rc are jumped) G and Y. 0. Your thermostat is working exactly the way it is supposed to. A single A/C unit in a two-story home often produces no-win situations. Your home is already divided into two zones, and the Nest’s learning features will save you energy and ensure comfort. 0. connecting 2 separate (heat/AC) to one thermostat. 1. I want to combine the two thermostats into one Nest. I installed a Nest thermostat the same as the old one (R, C, G, Y, ... Hi - I have a Lennox 80MGF(X) Furnace/ Central AC unit that was installed when the house was built 1997. The best budget smart thermostat: Nest Thermostat E 3. Press J to jump to the feed. Normally, having two thermostats is for when you have two separate heating/cooling units. Install thermostat 13. The best smart thermostat for Google Home: Nest Learning Thermostat (3rd Generation) 4. Good luck. You’ll need to identify if your home is fitted with 1 Stage, 2 Stage, Direct Line Voltage, 24mV, or Zone heating and cooling to determine which thermostat will be compatible. I have two old thermostats that control our gas boiler and air handler. The best smart thermostat for Apple HomeKit: Honeywell Lyric 6. A simple Braeburn two zone panel will work. All 5 nests I installed had the c wire attached on the thermostat side but now the furnace/damper side. My parents circa 2010 damper system had c wire terminals but the wire was not connected. This way, the furnace or AC could still operate for the other rooms concerned. Discussion on Google Nest products, including installation and configuration. Trying to figure out if this is worth it. To force the AC to kick on, either on the NEST app or the NEST thermostat itself, turn the AC down to kick on at least 10 degrees cooler than what you want it set at. If I attach all these to the new thermostat, where do I attach the ones off the central air unit? If you're replacing a standard AC with another standard AC, you can keep your smart thermostat. Already had two old Honeywell thermostats and the house was about 8 years old. Do you have two thermostats now? Press question mark to learn the rest of the keyboard shortcuts. They all were dumb thermostats prior so it didn't matter. One thing to note: Google is no longer selling the Nest Thermostat E directly, but you can still find it at other retailers for around $169. Is the Lennox XC21 a good unit? Hi there, One Nest can't control both units at the same time, unless your system is wired for having just one thermostat control the whole house. The Nest Learning Thermostat doesn't need to be programmed - it remembers the temperature you set to build a personalized schedule. Stage two (or multi-stage) means your system is capable of heating and cooling on both low and high speeds. Normally there is a zone controller that the thermostats connect to. Compatibility – No, Nest is not for everyone. This will for the AC to kick on. Make sure your Nest thermostat is connected to your wifi. Here's the two current wire setups: AC (4 wires): Red - Rc White - W Green - G Yellow - Y. Connecting Common Wire from thermostat to Air Handler. Create a Nest Account Before the homeowner can control the Nest Thermostat from their mobile, tablet or laptop, they need a Nest Account Tell them to create one at nest com/eu/account or just download the Nest app Once the thermostat is connected to Wi-Fi, the Nest app will automatically add it to a Nest Account I'm trying to combine them into one. I did not have a C wire on one of the thermostats BUT there were extra wires from the same line in the bundle. ? Strip it and connect it. The best smart thermostat: Ecobee SmartThermostat 2. Thanks for any advice. when connected, even when the nest is set to 'off', it will cycle the AC on and off for short amounts of time. There are always spare wires in the bundle that come from your main board. Currently the thermostat is in the hall keeping the back of the house cool. that will allow the finished room to control the air conditioner also. The best Alexa-enabled thermostat: Ecobee 4 5. If so, you will need two Nests. The Nest works independently like your current thermostats in the home, and can only control whatever part of the system it's wired to. If you are considering buying the product make … Nest turns itself down when you're away to help save energy and you can change the temperature from anywhere using your smartphone, tablet or laptop. Since the two - stage has a “Low” setting, it can run for longer periods of time. Should I plan to get two Nest units? Nest thermostat troubleshooting- No air conditioning. I had the same problem. After all, controlling a standard air conditioning system is what smart thermostats are made to do. Assume the stat is set for 70. Best tech support gave me the idea when I shared some pictures on my config and the error I had on one of the best thermostats along with the advice that if I did not feel comfortable with it, seek help from an HVAC professional. One Nest can't control both units at the same time, unless your system is wired for having just one thermostat control the whole house. The heat from the fireplace pilot keeps the living room too warm so I want to control the ac unit from the living room in the summer and the heat from the hall in the winter. Any guidance on how to proceed here is appreciated. 2 thermostats, 1 AC unit, 1 air handler Just purchased a newer two-story house (2018) that has a thermostat on each floor, but just one AC unit and one air handler. Your living area is shutting off outside unit and the upstairs unit is still calling for AC. The Nest thermostat, an Energy Star-certified device, is designed to reduce heating and cooling costs while saving energy. Combining separate heat and AC systems with single Nest. The temp drops to 66. The 2 degree difference in start / stop is the "anticipation" factor. With this in mind, I wanted to research if it’s possible to have two Nest thermostats in one house to maximize efficiency. So, following up on this, I've got an existing oil fired forced hot water system running off a 1st gen Nest for my main heating zone. Controlling separate heat and AC units from a single thermostat.