Ecobee variable speed blower. I also tried with an old ecobee3 to no avail.

Ecobee variable speed blower Jul 8, 2022 · I think i have the same ecobee as you, On my Bosch dual fuel variable speed heat pump, The fan speeds are controlled by the cooling outputs- Y1 energizes the fan in low speed, Y2 kicks it into high. I was going back and revisiting all of my Ecobee settings and haven't been able to find recommendations for the minimum fan runtime that would take into account 2 stage with variable speed (and region if it particularly matters). When there is a call for Y2, the blower motor will turn to high speed setting. Confusingly, the site also mentions the * wire can be used with multi-speed fans, but it looks like it's for a "3rd speed" which doesn't sound like a variable speed fan. this is decided by furnace. Feb 10, 2023 · How to repurpose the ecobee for a variable fan speed system? As a new ecobee user, I purposed everything from the beginning. I had a new HVAC Rheem 96VA installed a few months ago. Variable simply means that the blower motor operates at different speeds to more accurately control the flow of heated air to your home. Why does this work, despite seemingly Gas Furnace: Lennox G71MPP (Two-Stage, Multi-Position, Variable Capacity, Variable Speed Blower) Per the product brochure (PDF) , Table 1 shows the furnace can be operated by Lennox' communicating t'stat, a single-stage t'stat, or a two-stage t'stat - like my ecobee. My installer installed an EcoBee Lite thermostat which is a conventional thermostat. Then I learned about Bosch. There is a lack of standards in communicating thermostats between manufactures so only someone who knows the Lennox line would be able to tell what you would be sacrificing with an ecobee. You'll lose all the efficiency gained with a variable speed compressor by using a thermostat that doesn't support variable speed compressors - like the ecobee. Unit will run at low speed setting when there is only G call. Per the manual, higher fan speed over the A coil will create an increased demand through the suction line pressure. The use the name Infinity as a level/tier of performance in their lineup. Inside is variable speed. and: The 40MBAB multi-poise air handler has a variable-speed ECM motor that synchronizes with the Carrier single-zone ductless heat pump models 38MARB , 38MBRC sizes. Then in the ecobee I just set the fan controlled by the furnace. But once your home is cool, it will automatically turn down to keep your home at a comfortable temperature. Happy with upgrade but I don’t think an Ecobee can handle it. If you have said kit then the stat will properly control the 2 stage A/C but neither the Carrier stat nor the Ecobee will talk to the blower motor. The main difference at the blower between Y1 and Y2 call is blower speed. That's why variable speed system is very similar to the fixed speed. I found the ecobee saves me more money then the communication thermostat. Quick web search revealed that Ecobee 3 Lite Using Ecobee 3 lite, electric furnace heats like it normally does but once it gets the rooms to temp, it seems to go to a higher fan speed for around 30 secs, kicks back down to normal and about 30 secs later, shuts off. New Lennox Elite Series 90,000 BTU, NG, 2-Stage, 3 ton Variable Speed blower (EL296UH090XV36B) KeepRite 2. When the thermostat calls for stage 2, it kicks up the air handler blower a notch, and after 20 minutes, it slowly ramps up the heat pump compressor as well. My system has a TCONT 802 thermostat which does not have any kind of dehumidify on demand feature. Blower Motor Variable 25-speed, constant torque high-efficiency ECM Primary Heat Exchanger Corrosion-resistant clamshell design of aluminized steel Secondary Heat Exchange Fin-and-tube stainless steel There are no variable speed compressors supported by ecobee (or any other non-proprietary smart thermostat). May 19, 2021 · In this HVAC training article, we will be discussing how to adjust the fan speeds on an indoor ECM variable speed blower motor and an ECM constant torque/multi-speed blower motor. Dec 22, 2019 · It starts out on low first but if necessary it will change the burner to high. Using the example above, for fixed speed, the blower for heating/cooling use will run at 1100 and the variable speed will run at 1154. With this setup, I'm using a Nest gen 3 learning thermostat. 900 cfm stage 1 and 1200 stage two with a fan ramp for both stages that runs lower speed for first 7 minutes. 2-Stage Heat, 2-Stage Cool, Variable Speed Blower, and Humidifier (I am in Canada, 5 months on heat means inside is always dry af). Fan control: EcoNet can control the variable speed blower to whatever speed it feels is necessary from 0-100%, given the current conditions. By connecting a variable speed furnace Aug 17, 2019 · Variable speed is probably the incorrect term to be using. 2nd Setup: Still Ecobee Same as first but blower speed set to How Does Ecobee Work With a Variable Speed Furnace? Ecobee thermostats are designed to work with a variety of heating and cooling systems, including variable speed furnaces. View Profile Aug 3, 2023 · A system with variable speed blower will automatically run at the speed it needs to for each mode of operation, including at a low speed when fan only is being called for. When there is a call for Y1, the blower motor will turn to low speed setting. And this is the wiring that we have: Which results in Ecobee thinking I have this. There isn't a way to change the speed of say 'high speed' if you wanted to. Variable speed is mostly marketing hype except for when it needs to match variable compressors for obtaining high efficiency ratings. It looks like their thermostat uses the BK connector to control the blower control using PWM signals (and the Ecobee doesn't support that. 20%) caused the coils to drop to freezing. Earlier systems had this controlled by the proprietary thermostat. Thus far my blower is not constantly running, and only runs when the thermostat says the house needs heat. There is no need to set the fan speed from the thermostat - though communicating systems can generally do this. Looks like the humidity features for the blower fan are not available if your furnace has a single speed blower fan. Of the three companies, Nest has been the most accessible, supportive, and knowledgeable. The furnace itself picks the fan speed (with some tweakable settings). The Bosch IDP Y1 and Y2 wires control fan speed only: The IDP supports two stage fan control which requires a two stage thermostat (Y1&Y2). The ecobee will work with systems that have variable speed fans, but they will operate as a two stage furnace and the control board in the furnace will control the fan speed. Dehumidification mode is where the system is on, but the blower is slowed down lower than it normally does. You might be able to get a Bosch IDS heat pump for about same price as the multistage AC. . 0Ah Battery and Charger Included The industry’s most powerful blower is here! Introducing the 650 CFM EGO POWER+ Blower. The ecobee allows the fan to either be controlled by it or by the furnace, and we have tried both settings with same result - only 100% or 0% fan speed. I would like to get a more efficient/quiet combo. com: EGO Power+ LB6504 650 CFM Variable-Speed 56-Volt Lithium-ion Cordless Leaf Blower & ecobee New Smart Thermostat Enhanced - Programmable WiFi Thermostat : Patio, Lawn & Garden Jul 30, 2019 · Variable-speed system. When I manually turn my fan on to recirculate air on the Ecobee, it brings the fan in the furnace to full speed. Sep 1, 2021 · Ecobee 4 T-Stat 3000sq/ft house in Southeast VA (hot and humid summers) Blower Speed at factory speed - 400cfm/ton System set as a 5 ton unit System set as a 1 stage with comfort-r enabled on furnace Humidity 65-70ish% The charge levels and subcool/superheat numbers I don't have. In other words - the Ecobee can't fully control the variable speed blower - so I may not get the full "comfort" effects of having a VSB - as opposed to using the Econet. But those presets are editable. Therefore, with only a single thermostat G wire, the speed of the fan can only be controlled by the furnace unit and not the ecobee thermostat. You pay a premium for Trane/American standard higher end systems because of the warranty and support. My installer recommends purchasing a new Trane smart thermostat since the Ecobee4 can't control the fan speed / humidity. Jul 14, 2023 · The good news is the blower works very well at full speed. Based on your current setup, the G wire is only responsible for turning your furnace blower fan on and off. Slowing the blower increases moisture removal by […] Although ecobee smart thermostats are not directly compatible with Inverter/Variable Refrigerant Flow (VRF) heat pump systems, they can be made to control these systems with the purchase of additional hardware. Variable speed systems adjust power to maintain a set coil temperature, usually between 35-45F. As stated, the Ecobee can handle a single- or two-stage furnace, but can not fully control a variable speed furnace. I'm a huge ecobee fan, but I wouldn't use it with a variable speed compressor. This energy saving feature is AI-driven and uses data including the desired setpoint, the temperature throughout the home, and but having said that, there are other furnaces that are true variable speed that adjusts speed of blower to how much work furnace needs to do. Instead of a truly variable speed, you’ll only have 3 or 4 speeds, depending on how you wire it & jumper the AHU. The system is set up so that the blower can produce less CFM per ton when the latent load (humidity) in the space is higher than the setpoint relative humidity. Bryant 926TA48080V17 Installation of a New 926T - 96% 80,000 BTU Two Stage Gas Furnace with a Variable Speed Blower Motor & Ecobee 3 Lite Smart Wifi Thermostat in Spokane Washington Spokane , WA 09-18-2024 Jan 5, 2020 · A year and a half ago I had a Trane XL15c packaged unit (model 4YCY5048A1090A) installed to service my downstairs and my invoice indicates this is a 2-stage heating and variable speed blower. Furnace: TUD2C080A9V4VB - 2 stage heat, 250 variable speed blower. Since then I contacted ecobee support and found the device does not support variable speed, but the control board does. ) So when the AC starts, the outdoor unit comes on at normal speed. Unlike a single-speed furnace that can only operate at full capacity or nothing at all, a variable-speed furnace can operate at different speeds to better manage airflow and maintain temperature. These are available from HVAC manufacturers and third parties. The furnace control CPU will shift the continuous-blower airflow from the factory setting to the Picking a speed is only at install time. If you have only single stage compressor, then you should bridge Y1 and Y2 and just run Y1 to the thermostat. I was going to bite the bullet and just give up my ecobee for the variable stage system but upon reading up on the thermostat it needs to be coupled to - Lennox iComfort S30 - and seeing the horror stories about it, and leaning towards just keeping my ecobee and getting the dual stage HVAC system. A/C needs about 400 CFM of air per ton on a constant speed type of system otherwise the evaporator coil will ice up because of low air flow (imagine what happens with a clogged air filter). That takes a communicating thermostat. ) Variable-speed blower fans are different, lowering the speed of the fan motor when the temperature only needs to change by one or two degrees. Which is the best thermostat that uses all the features, including variable speed blower? I don't need a wireless/remote thermostat. I have an Ecobee 3 thermostat with 3 external sensors which works well but new HVAC is 2-stage heat and cool with variable speed fan. Also, a Carrier Infinity does NOT necessarily mean it is a communicating system. at minimum, i would check if it is possible to connect the ecobee to the furnace as a 2 stage furnace. The heating/cooling in the house seems uneven, so I thought I'd try leaving the fan on all the time, but of course, that means I need the G wire. to conditions and it could clash with the Ecobee smart settings. Ecobee won't/can't help on vendor specific issues. On hot days your system will ramp up to top speed to cool your home quickly. But, the indoor blower with Comfort-R enhancement will slowly ramp up to 50% speed over the first minute. I haven't looked into it, but think Fan On brings the fan on in circulation mode, very low speed. I also tried with an old ecobee3 to no avail. But it is not continuously variable. No variable speed happening. Variable speed furnace is most efficient With a variable speed furnace, the 'variable speed' doesn't refer to the furnace itself but to the furnace's indoor blower motor. Pros: A variable-speed system is the most comfortable option. Read the owners manual on the ecm control. Seer 1 rating got to ignore this in the calculations now they can’t. My furnace motherboard has dip switches for manual control and preset flow control ramping for the blower motor. 4% AFUE. Just read the manual it will show you everything you need for ramping and heat and cool profiles i use cooling profile D and heat profile A i forgotten the speed of the blower motor but i have it on the slowest setting with a 10% increase. So your unit in a nutshell: outside is single stage cooling. This feature allows you to define the minimum amount of time each hour that the system fan will run. Was wondering if ecobee has plans to partner with any of these variable speed compressor manufacturers to keep ecobee competitive. Conventional heating/cooling uses stages. Today I had the installers return to replace the wiring from the air handler to the thermostat with an 8-conductor cable and install the Carrier-recommended ecobee Premium. Actually, it looks like it is a variable-speed air handler. But smart thermostats, including ecobee smart thermostats, need an adapter to work with modern variable speed heat pumps with inverter technology. , when R and G connects, one speed only which a bit higher than the low speed with infinity control with low, med, high selection. The Ecobee will just tell the fan/unit to cycle on and off. The old unit was 19 years old - an Amana 3T condensor with a 4T AHU with variable speed blower - and we decided to replace, we realize we could have spent a few hundred and been back working again. This is a follow-up to our other article on "Adjusting the Furnace/AC Airflow Speed on a 120v PSC Blower Motor". They are telling me that they have to run 8 wires and do some workaround and that the Ecobee won't take full advantage of the unit, but that's why I was looking at a 2 Stage VS a Variable Speed unit, because it looks like the Variable Speed unit does require a specific thermostat. Here is the equipment: XV80 Furnace (variable speed, 2-stage heat, 60K BTU) Model: TUD2B060A9V3VB; Install Manual I am trying to research this and Ecobee. ). You can still use the ecobee as the variable speed blower works independantly of the thermostat when it comes to cooling/heating demand. Installation is technical, so we recommend finding an Dec 31, 2020 · One about sound and one about ecobee. The proprietary thermostat will send a digital signal to ramp the blower as it calculates for true variable speed. With the Trane stats, you’ll have more control over how the fan operates. I am new to all of this and in the process of learning. Ecobee is good but doesn't have the optimizations for the best comfort and efficiency. Nov 16, 2024 · The short answer was yes, the Ecobee 3 can work with a 2-stage furnace with a variable-speed fan, but can only control the fan at two speeds (not true variable). 1 1 Smart Thermostat Enhanced only supports 2-stage heat pumps and 1 stage of auxiliary heat. So yes it will work, but it will run a little differently than if you had the Carrier Infinity thermostat. Oct 27, 2022 · I am forced to get a new furnace (heat exchanger is cracked) and AC due to age (19 years old). Typically, a variable speed blower fan automatically adjusts as needed to keep temperatures within one or two degrees of the thermostat settings. Ecobee is capable of configuring two stage systems and 3 stage air handlers. Any time you upgrade to a variable speed system (which is a very smart decision, by the way), keeping an existing smart thermostat may weaken one of the biggest advantages of the new equipment: dehumidification. Just not sure how to get this fan to kick up a few notches when the temp is a few degrees higher than what the thermostat is set to. I have tried to figure out how to enable the variable speed fan. Prior to this, I felt as if the Lennox had a variable speed fan and blew much much harder and you could hear it switch between speeds. If you have not The Ecobee cannot control all of the settings of a variable speed blower fan, so instead the control board will be controlling what the fan speed is set to. Not a "multi speed" and looks like there is an option in ecobee to set up as single or variable speed, which I'm assuming they did. The first two you listed i think are multi speed furnaces. These blower motor versions can be found in furnaces, air handlers, and packaged units. The ecobee can't control the fan speed. Ecobee 3 should support the 2 heat/cool but Ecobee explicitly states that the 3 tstat does not support multi speed fan. Has anyone hooked up an ecobee with this configuration? If that variable speed blower is self modulating, then using an ecobee wouldn't be an issue. Sep 5, 2012 · The variable speed fan usually starts at about 80% fan speed for the first minute of operation and then goes to 100% fan speed. If you have a communicating variable speed fan then matching it to a communicating stat would be the better solution. Then the blower will run at 100% for a Y1 call. I read that if you alternate the fan setting from auto to ‘on’ it toggles through the speed settings but I don’t think it works for us? It’s a midea/comfort aire HP. And it will be very efficient too (although probably not as efficient as a variable speed compressor). Dec 11, 2022 · I have a Trane variable speed blower furnace. The set points I have for temp for occupied, unoccupied, and setback are really handle my humidity quite well anyway. However, it does not support true variable speed air handlers. ) This is also when I reconfigured the unit using the multi-speed fan settings instead of multi-stage heat pump. First of all, is that correct? If that is correct, does anyone know if the Trane XV95 is self modulating variable speed fan? Or controlled by my Trane Nexia XL824 thermostat? I'm considering adding one because I want to make my blower run at variable speeds for noise (I also need a variable speed blower), but 10-40% efficiency is a crazy claim. May 26, 2023 · There are at least three speeds to choose from. Is that correct? I would assume an Ecobee could handle a variable speed blower. Much of the reason I switched to an Ecobee is that it can run the blower motor on an hourly timer or when it detects temperature differences between different rooms. In stage 1, the heat pump offers some nominal low degree of heat. The variable speed motor will vary its speed to deliver the desired CFM for the application. Oct 31, 2018 · The boards in the furnace handle the rest. Fan minimum runtime. Then you have dual fuel to choose heat option based on temp, comfort, utility cost. This article will show you the different ways you can control the HVAC Fan with your ecobee Thermostat. Really it sounds like you should have got a 2 speed furnace instead of variable speed, I dont see the point of variable speed air with a 2 stage furnace It is possible to configure the Ecobee such that it lets the air handler control the fan in heating/cooling mode, and also independently run the fan for circulation mode. Variable speed motors have preset speeds as well. This is because the variable speed nverter of the Bosch is already adjusts its speed, etc. Amazon. Unless the technology for variable speed is standardize, which from my research it all looks proprietary, looks like the future of these compressors will be messy and fragmented The reliance of variable speed units on proprietary thermostats is the main reason why I chose to install a two-stage heat-pump with a variable speed self-modulating furnace three years ago. (And yes, people do buy upgraded variable speed furnaces like the S9V2 furnace to match their standard single-stage outdoor condenser. If you have a variable speed air handler, you want the air handler to control the speed of the fan and not the Ecobee. A variable speed blower motor, ECM, is not the same as a modulating furnace or outdoor unit. Was supposed to be Lennox ML18, ended up with EL18. I think it's because I have a variable speed blower, two-stage furnace, and it needs some other kind of voltage. Aug 25, 2023 · With variable speeds, the heat pump can operate efficiently by running slowly most of the time, but at colder temperatures it can speed up as needed to bring more heat into the house. They talk to the furnace and the furnace boards decide blower speed. If your air handler is capable of being configured with stages instead of variable speed it could work. This is a 2-stage 80% AFUE gas furnace with a variable-speed fan. G via the Gh terminal is currently just serving as a dummy pin since R-W is already turning on the low speed fan, and Y2 now increases the fan speed via the G terminal when the thermostat wants to increase the fan speed. If you set up the Ecobee for dual stage heat and cool with a dehumidifier, you can probably wire it to get 3 cool speeds, 2 heat speeds, and then the low speed constant circulation mode. With air speeds that compare to a category 5 hurricane of 180 MPH, this blower can move wet leaves, rocks, mud, snow and more. The thermostat also doesn't control the variable speed blower, but the furnace can control that itself. at the moment you are using the ecobee as a "dumb" thermostat with the ability of having remote sensors. If the coil temp drops below that it reduces compressor output to prevent it from dropping further. I've recently installed Ecobee SmartThermostat (aka Ecobee 5th gen) and it asked how do I want to control fan in heat mode. g. My goal is to get variable speed of the blower and access to both stages of both the AC condenser and the furnace. Jul 1, 2023 · • Variable speed compressor. ". I had read that despite the single stage outdoor unit that having the variable speed indoor meant that the blower was capable of modulating itself to help with humidity (big problem here in south FL). Multiple Fan Speeds: The blower motor adjusts its speed to circulate Variable speed is a misnomer - a fully featured variable speed blower motor varies the speed to automatically move the air volume the system needs - as filter gets dirty, for example, it speeds up to maintain air volume. Dec 1, 2020 · Single wire "Variable speed blower" control with Nest; Cookie Consent Or could an Ecobee also work? Reply . Tech says it will function as a two speed with the ecobee but when I try test equipment and turn on Cooling 1 and Cooling 2 I can’t hear any difference. Has anyone used an Ecobee with these? I was told that it would work but that you should disable the "smart" features of the thermostat. But I’m curious how it’s currently wired. I bought a cheap Honeywell thermostat and hooked it up, but "fan on" doesn't work. That means there are preset blower speeds for each of the 5 selectable speeds. I have tabled out the repurpose points you need to follow. It ramps up and down and adjust accordingly to load. I recently had a HVAC company install the following equipment in my home. They also installed a Nexia XL824 thermostat. The furnace blower is variable speed and cfm (speed) can be set on the furnace when using a regular 24v stat so an ecobee would be ok with that, but the communicating stat will control this system much better. I think Lennox says for optimal control of the variable-speed fan and for the dehumidification, it recommends Lennox iComfort line of Tstat, which I believe are communicating Tstat. First of all do you have a fully variable or multi-stage? Fully variable varies in 1% increments from 30-100%. In this case, your unit is probably not using the iComfort Communicating Control feature. l Nov 23, 2018 · With that in mind I already know from my research both Nest and Ecobee do not work with the variable speed fans in furnaces unless the fan self modulates by the furnace. An ecobee (most current model with multiple sensors) thermostat controls the system. Even Ecobee says "ecobee thermostats do not support proprietary features supported by communicating thermostats (such as variable fan speed), so these features will be lost" I guess that since the furnace unit has a variable speed ECM blower, there is technically an advantage to the Infinity thermostat. On a/c / yellow your blower is in most cases on high speed already so, green & yellow blower would not have an actual speed change. e. I have set my Ecobee up to let the HVAC unit control the fan and when there is a call for heat or cooling the blower will start and ramp up after 10-15 seconds. Also I'm going to have a 2-stage compressor, 2-stage heat, and a variable speed blower, does the Ecobee have the wire capacity to manage all of these simultaneously? Links to wiring diagrams for Trane and the Ecobee are appreciated. 1) Each HVAC manufacture has their own/unique proprietary thermostat control that will provide granular RPM control based on a number of operating variables that determines to ramp up or down the speed of the motor to maintain optimum efficiency. A variable-speed system is the most energy-efficient system available. From everything I have read, if you replace proprietary thermostats, you will lose some efficiency functionality from the system. That will give the furnace control over the ECM blower motor for various rpm at different temperatures for maximum energy saving. If the blower is running on its highest speed, a request to change will direct the blower to return to its lowest speed. Super happy with it Is the ecobee capable of controlling the fan speed? It feels to me like it should be able to. I've got an Ecobee Smart Thermostat Enhanced set up to wire my two-stage Trane gas furnace (S9V2B060U3VSADA) and I was wondering if it's worth trying to set it up to use the variable speed blower. All these compatibility drives me crazy and HVAC providers are giving me AHRI certificates and as a home owner I am really finding it tought to make a determination. I got a Carrier Performance (40MBAB and 38MBRC) which is a variable speed system (both air handler blower as well as heat pump compressor). Mar 14, 2022 · I am getting an American Standard / Trane S9V2 furnace with the Silver-14 AC (1-stage, same as Trane XR14). We just had our original-to-the-house 1-stage constant speed HVAC replaced with a 80% 90k 2-stage variable speed blower/3 ton 15 SEER combo. There are no G1, G2, G3 wires so I don’t know if the ecobee specs on speed apply. 12-01-2020, 08:23 PM #17. Sep 20, 2020 · Continuous Blower Speed Selection from Thermostat To select different continuous-blower speeds from the room thermostat, momentarily turn off the FAN switch or pushbutton on the room thermostat for 1-3 seconds after the blower motor BLWM is operating. I currently have a lennox heat pump CBX32MV-060-230-6-06. The only thing the ecobee won't do is tell it to dehumidify. I haven’t had a need to do that yet. I understand it would be cross sold when selling to high end systems. This "hybrid" setup can still be controlled by a conventional thermostat like an ecobee. You can change the settings for cfm fan speed, but you have to do it manually at the board. These modern cold-climate heat pumps are often referred to as variable speed heat pumps, but you may also hear them called inverter, variable capacity, or I don't have an Amana, but my ecobee3 controls my variable speed Lennox furnace/air-handler just fine. It's not a variable speed 20+SEER AC condenser; just a 17 SEER 2-stage unit. However I'm trying to figure out what exactly I'd lose with that combo - the Hyperion TAMX has a variable fan and I want to make sure that still works with the Ecobee for actual air movement. Regarding variable speed blower, I only miss three fan speed control, i. If the variable speed furnace has single- or two-stage wiring connection (W1/W2) separate from the thermostat communications connection, ot will work in a non-optimized manner. It seems it can play ball with both stages on the condenser, but I do not think it's adjusting the variable speed of the blower, unfortunately. Mitsubishi heat pump SUZ-KA-30NA2 This is a variable speed heat pump (variable speed condenser). Mar 18, 2022 · The Ecobee Smart can use the variable speed blower for dehumidification. not thermostat. First, the Ecobee need enough wires. The ecobee firmware is inadvertently exercising this feature and changing the fan speed unbeknownst to the user in certain circumstances. Ecobee does not support the proprietary communicating methods that brands use with the variable speed units. Pair your InteliSense-enabled Preferred™ Series furnace with an ecobee for Bryant Smart Thermostat to grant permission for data sharing, and enjoy the benefits of connected From what I've read on the Nest website,it is compatible with variable speed air handlers, but will run it at only one speed. My heat pump is a 14 seer (single speed) and my furnace is a 2 speed 80% with a variable speed blower. The settings for starting blower speed, max blower speed, and ramp up/down time are set directly at the air-handler (dip-switches, etc. The ecobee will send a signal to activate the fan, and the blower itself will determine which speed to run based off its measured resistance. Dec 29, 2017 · Dehumidification features have been common on residential systems ever since the introduction of variable speed blower motors. for example, to just maintain a temp it may be low speed but if it senses it needs more work then it will adjust blower automatically. What is an Inverter/VRF heat pump system and how do they differ from traditional heat pumps and other HVAC systems? The Ecobee cannot control all of the settings of a variable speed blower fan, so instead the control board will be controlling what the fan speed is set to. For 2 stage, Y1 runs at 42% and Y2 runs at 100%. Ecobee and Nest don’t work with variable speed. Feb 28, 2024 · How do I determine if my ecobee is compatible with variable speed thermo pride (to provide info for variable speed low, med or high). This link implies that multiple fan speeds are supported Oct 12, 2022 · Will your new AC be paired with a variable speed blower? Here’s where things get tricky for your NEST or Ecobee thermostat. I guess Lennox accidentally shipped a var speed over dual. I believe that the ecobee setup will work great and will still make good use of the variable speed and capacity features. Variable speed furnaces feature a motor that runs at a range of speeds, allowing it to run more efficiently and reduce energy costs. It will run in high speed setting when there is W/W1/W2 signal (when the electric heat kit is on). Oct 21, 2019 · I recently had a 2 stage heating/variable speed ECM blower furnace installed - G8MVL0701716B, along with a new outdoor A/C unit. Using the example above, for fixed speed, the blower for heat pump use will run at 1100 and the variable speed will run at 1154. There is a setting on the ecobee to switch to the furnace control for the blower, but that does not happen. While not completely “variable,” the two settings (hi/lo) works with the ecobee and seems perfectly fine. You put yourself in "no mans land" using an ecobee thermostat. My real question is if there's any advantage to Ecobee over Nest with respect to controlling the two stages of the condenser or furnace, or the CFM of the blower. The HP in question is a Carrier variable speed inverter HP (38MURAQ36AB3) coupled with a Carrier 80k BTU ng variable speed blower furnace (59TP6B080V17--16). EGO Power+ LB6504 650 CFM Variable-Speed 56-Volt Lithium-ion Cordless Leaf Blower 5. I thought fully variable meant the blower always runs at a low speed, and blower speed and heat/cooling magnitude ramps up as needed upon setpoint vs actual temperature. So, bottom line, if your outdoor unit is variable speed, you will The Ecobee does not have those as an option. Second, multi speed vs variable speed. It has greatly improved the comfort levels in my house. All in the board and how it’s wired from board relays. That’s how variable speed motors operate, but that’s all it will do. Multi-stage should have 2, 3 or 4 step settings (or more?). It uses a communicating thermostat to control the blower speed. Last Dec, the infinity control malfunctioned due power outrage. Aug 26, 2021 · The DS, DH, or BK terminals will only allow a 2 speed air function with an aftermarket thermostat because it only receives a 24v on/off signal not variable speed. Aug 24, 2020 · If I use the Econet stat, it will control the variable speed blower to whatever speed it feels is necessary from 0-100%, given the current conditions. The native thermostat and remote allows for fan speed settings at low/medium/high/turbo. Once you run the system, it's runs at the speed you set and that's not changeable during the duration of use. 5 ton single stage A/C (still works, 7 yrs, was not replaced) GTHA - Ontario, Canada The variable speed blower will work with the Ecobee however it will work better with the 824 because the 824 has a port labeled "BK" that will communicate with the airhandler allowing the t-stat to control the blower motor as opposed to the the controller on the air handler. ecobee thermostats are compatible with many low-voltage multi-speed fan systems, including FCU (Fan Coil Unit) and PTAC (Packaged Terminal Air Conditioner) systems. Do you have the Connex controller? Why is the low fan speed an issue when not heating/cooling? Aug 30, 2021 · For reference my system is a: Ecobee 4 Smart Thermostat Bosch IDS 2. Then install ecobee Premium. So it would only freeze if running at its minimum speed (e. The Ecobee 3Lite is the operating tstat. Looks like the kit can do dehumidify on demand, slowing the blower to dehumidify more. You could consider getting a two-stage heat pump with a variable speed blower - this is a configuration supported by ecobee. When the A/C broke this week, the motor control module was bad. The options were: ecobee thermostat HVAC I've chosen HVAC. Summer savings The variable-speed blower motor, with properly matched cooling system components, is the ideal choice for improving SEER (energy efficiency) during cooling season Hybrid Heat ® system capable Allows gas furnace/heat pump system combinations for enhanced heating efficiencies Variable speed fans are compatible with Nest thermostats, but the fans will only operate at a single speed. Even, Efficient Comfort with Multi-Speed Operation Our OVM series of oil furnaces include variable speed blower motors for consistent control of heated air into your home. System off with the fan on doesn't dehumidify, that's known as "fan only" mode and any thermostat can do that. 100%. 0 5 ton Outside Unit (BOVA-60HDN1-M18M) American Standard Variable Speed Air handler/Furnace (AUD2D120A9V5) I am trying to make sure I understand the control logic for both the air handler and the outside unit. 2 Dual-fuel HVAC systems (also known as a hybrid, split, or packaged system) include a heat pump for primary heating and cooling and a furnace (gas or oil) to provide up to two additional stages of energy-efficient heating on extremely cold days. So when your installer said it's set at 100%, he just means he selected the highest speed the blower allows. (Can’t go to a high efficiency gas furnace due to location of the unit/venting requirements). Incorrect wiring or configuration can result in damage to your equipment. Feb 28, 2024 · My variable-speed heat pump emulates a two-stage system using a hysteresis mechanism. Generally, variable-speed A/C units need the corresponding brand of thermostat to be truly 'variable' speed. R600a. Utilizing the 2 stage setup on the Ecobee will maximize the efficiency benefits of this equipment. thermostat is usually I had a new HVAC Rheem 96VA installed a few months ago. Currently, I have an Ecobee 4 which works pretty well with Home Assistant through the Homekit integration (much more stable than the actual Ecobee integration). When on heat/ white fan is usually running on medium or medium low speed so you would get a change in your blower speed by switching between green and white. This is a communicating furnace. Variable speed blower motors (ECM) can be controlled by two different methods. Is there anyway to have the Ecobee run the fan at a very slow speed when I manually turn the fan on? I am considering a Bosch Inverter Ducted Heat Pump. May 26, 2020 · Furnace: Lennox SL280UH060NV36A. I have the ecobee set to use stage-1 for low temp differentials, and then kick it into high speed (stage-2) if the temp differential is greater than 3°. When I wired the ecobee, I let the air handler decide the speed of the fan per the recommendations I had read here. I'd prefer sticking with the Ecobee4 since I paid over $500 for two of them a couple of years ago. First I switched to Sensi touch thermostat. The X13 ECM motor supports 5 Dec 6, 2020 · I have an old (2006) two stage gas furnace with a variable speed blower motor (Trane XV80). Fan settings on the ecobee Thermostat. For example, an ecobee can turn a fan off/on, many high efficiency systems utilize a variable speed compressor and variable speed fan. I have ecobee on my boiler but I wouldn't consider it on my variable speed Trane AC system. I’m thinking I’ll just lose de-humidification from within the Infinity control. I’m having my HVAC system replaced next week with a 96% variable speed system. The fan would not go to 100% speed. The manual explicitly lists "conventional thermostat support" and I got an EcoBee Lite thermostat installed. Ecobee can only turn the fan on/off. Is it possible to replace the thermostat with an ecobee? I would like to use the ecobee because I’ll be able to add multiple room sensors to help even out the temperature across my home. All the while, they deliver great energy savings of up to 86. Jan 19, 2019 · The seer data says stage 1 is the same as stage 2 but I have a variable speed fan. When they looked at mine, they said I needed another cable running to the W2 which controls the second-stage heat (W1 controls the first stage The fan speed is controlled on the control board for the furnace. also, you can then easily change how long each stage runs for. My ecobee is wired up with y1 and y2 for 2 stage ac control and w1 and w2 for 2 stage heat control. Oct 16, 2024 · A variable-speed furnace focuses on controlling the speed of the blower motor. It's a variable speed, 2 stage and after doing some research even if I could somehow wire the board I would lose the variable speed portion of my furnace. I went with 2 stage furnace and Bosch HP and works great with Ecobee 3 lite. It's important to understand that the ecobee thermostat can indeed control a multi-speed fan. So, yeah, the control is not as fine grained as with a dedicated thermostat, but the ecobee can still run the variable speed blower in variable speed mode. The ecobee controls when stage 1 and stage 2 kick on. I'd consider this system middle end. Think about it this way Imagine you're the heat pump controller and you have to determine what speed/load to run at. The airflow requirements are determined by the equipment size and type. I'm the curious type and wondered how the variable speed blower functions. May 22, 2020 · my variable blower does not increase velocity. Aug 28, 2023 · ecobee smart thermostats have always worked with traditional staged heat pumps. Mitsubishi's proprietary communicating thermostat will take take advantage of the variable speed condenser to maximize comfort, during both heating and cooling, while minimizing energy use. Oct 5, 2021 · What I have done for the time being is connect furnace Gh to ecobee G (low speed) and furnace G to ecobee Y2 (high speed). It's currently running the furnace in two stage (although it rarely kicks into second stage. Nov 3, 2017 · I’m talking true variable speed - NOT three-stage, or similar. My furnace is a Lennox SL280UH090V36B-03. Aug 19, 2024 · - The Ecobee3 Lite cannot fully control a variable speed heat pump - There is no direct communication between the Ecobee thermostat and the heat pump (not directly aware of thermostat settings) - The heat pump can do all the management of the variable speed on its own based on the on board sensors When there is a call for Y2, the blower motor will turn to high speed setting. Sep 15, 2020 · As part of this new Multi-Speed Fan support, ecobee has developed Optimize Mode, which automates a home’s fan speed in order to optimize energy efficiency by running fans at lower speeds without sacrificing comfort. That way, you have have the ecobee decide when to use stage 1 and stage 2. But I assume the blower wastes more energy on high with higher static pressure. My old Nest wouldn't work with it because I lack a common wire. It's a variable speed unit that adjusts using line pressure and temp. Nest control of multiple fan speeds is more for water based systems. I’m concerned that the system is not wired correctly to make full utilization of the variable speed blower. Comfort: EcoNet is designed to optimize your system's comfort. In any case the blower does start at very slow rpm so when I call for AC The Model 820T uses variable 25-speed blower motor to achieve extra-consistent comfort during the colder months and squeeze humidity out of the air during the hotter ones. Trane support won't like it. But, even as an existing ecobee user, you need to repurpose specific wiring terminals. Mar 19, 2023 · Hello, We are replacing a 22 yr old gas furnace with a new Daikin DM80VC0804CN 2 stage variable speed blower gas furnace and a Daikin DZ18VC0481 variable speed inverter heat pump. The furnace is a 2 stage with a variable speed blower. I had the installer put in a generic programmable t-stat at the time of install until I decide what I want for a thermostat. rzonsb jkx bcoswko dpci orwt fzrcs uer kqyppjg werddea ncsfwr