Active 3 years, 11 months ago. I finally came across an online suggestion from someone else living in the Phoenix area and using an Ecobee (with a heat pump) to lower the compressor minimum outdoor temperature setting. based on outdoor temperature or on indoor heat differential, etc. Default and recommended value is 300 seconds. compressor will be disabled. What this also does is in the spring and fall when it’s too cold outside it allows the furnace fan to run and circulate the air inside my home and keep it at a nice temperature. running when the outdoor temperature … We recommend OFF. Close. Ecobee Inc. of Toronto, Canada, sells a range of Wi-Fi enabled thermostats, principally in the Americas. PTCS Heat Pump Thermostat Support Sheet Manufacturer: Ecobee Thermostat Models: Ecobee 3 Lite, Ecobee 4, Ecobee 5 Page 1 of 1. To Configure Temperature … I am new to heat pumps, so I … Some heatpumps can take longer than others to warm up and finally start giving heat. Viewed 2k times 1. In these cases you can manually enter a higher differential to avoid the auxiliary heat coming on for a certain time or temperature difference (it is up to you what value you would like to keep it at). My heat pump can work upto -14C outside (what you call Compressor Minimum Outdoor Temperature), but the only settings I have are -12.2C (which is 10F) and -15C (which is 5F). My old thermostat failed, so I replaced it with a new EcoBee thermostat. Can you please implement another value, let's say -13.6C (which would be … ecobee 3 recommends 35˚F.” The manufacturer of your HVAC equipment does not recommend disabling the outdoor compressor nor does ACCA Manual H. Select Cancel to acknowledge this warning, save your settings and get back As noted in the ecobee 3 installation guide, the installation and set-up of this thermostat should be performed by a licensed HVAC contractor who is knowledgeable in the operations of your HVAC system. ecobee recommends turning off the compressor when outdoor temperatures drop below 35˚F; however, this setting is not ideal for energy efficiency and costs. I would recommend to set a value for these thresholds first and that should eliminate the aux heat turning on sooner than needed.This can be done by going to MENU > SETTINGS > INSTALLATION SETTINGS > THRESHOLDS > COMP TO AUX DELTA. I am also considering lowering the compressor min cycle off time to 300 seconds. Compressor Min Outdoor Temperature This is the outdoor temperature where your compressor will no longer be allowed to run. There is a setting in your "thresholds" section that you can change; most likely it is set to default at the moment which relies on the feedback of your heatpump system and how long it takes to warm up the home. It has many lockout options, e.g. the inaccuracy of the ambient temperature values obtained via the Internet that I assume the Ecobee uses to determine the current "outdoor temperature". Is a Password Required? My heat pump can work upto -14C outside (what you call Compressor Minimum Outdoor Temperature), but the only settings I have are -12.2C (which is 10F) and -15C (which is 5F). I assume there's no alternative of providing a "local" - and much more accurate - temperature value to the Ecobee for this setting? Even though a heat pump becomes much less efficient and useful at … Before adjusting this setting, we recommend … Min Outdoor Temp Disables the compressor when the outside air temperature reaches the configured minimum setting. In 600 seconds the temperature drops by about 1F and I don think the HP alone will able able to maintain/increase the temperature (at least why it’s 30F outside) This past December in the Phoenix area, overnight temperatures were at times significantly lower than usual and this was the first winter with a new Ecobee 3 controlling our heat pump. Aux Heat Max Outdoor Temp = Compressor Min Outdoor Temp. Read the ecobee installation materials carefully and only install the thermostat yourself if you are comfortable with electrical wiring and device setup. When complete, ✓select the “<”symbol in the upper left corner at which time you will get a Warning message that states, “Compressor min Outdoor Temperature for air to air Heat Pumps should not be … Min Cycle Off Time: Enables you to configure the compressor off time between cycles. But then if the temp dipped … I set that to 60 minutes. Default value is 35⁰F/1.7⁰C. Hello ecobee. Can you … I assume there's no alternative of providing a "local" - and much more accurate - temperature value to the Ecobee for this setting? Confirm your “Aux Reverse Staging” – For optimum efficiency, this setting does not need to be set to enable. It has many lockout options, e.g. If you are worried just turn the minimum threshold down to 25F from 35F, that will cover any 10 degree discrepancy. This timer will run its course regardless of whether the input has reverted back to its normal state and the deactivation timer has expired. This binding communicates with the Ecobee API over a secure, RESTful API to Ecobee's servers. if the Ecobee uses an Internet derived temperature to determine the outdoor temperature, it could think it's below the minimum temperature threshold when it's not. Min Outdoor Temp Configures the minimum outside air temperature at which the compressor will be disabled. This is adjustable from 240 - 900 Seconds. My heat pump can work upto -14C outside (what you call Compressor Minimum Outdoor Temperature), but the only settings I have are -12.2C (which is 10F) and -15C (which is 5F). Posted by 5 hours ago. Heat pump minimum compressor temprature. This is set to 35⁰F/1.7⁰C by default. (ACCA) do not recommend turning off the compressor at all. ecobee3 lite, call ecobee customer support at 877-932-6233. It prevents the compressor from 2. Allows you to set the minimum outside air temperature at which the compressor will be disabled. I've released a new version which allows the ecobee users to change this value if needed. I set that to 60 minutes. If the weather from Dark Sky is wrong, then your ecobee will be wrong and be following the rules wrong. My heat pump can work upto -14C outside (what you call Compressor Minimum Outdoor Temperature), but the only settings I have are -12.2C (which is 10F) and -15C (which is 5F). Yet on the page that offers definitions on these settings, it … 200 Dan Tibbs Road NW Huntsville, AL 35806. 1. It prevents the compressor from running when the outdoor temperature … As the OAT drops relative to the indoor air temperature, the compression ratio increases causing higher heat of compression and reduced coolant flow through the compressor. Heat Differential Temperature: 1.0°F; Cool Differential Temperature: 1.0°F; Compressor Min Outdoor Temperature… I just purchased an Ecobee3 and I'd like to minimize the aux heat usage by setting the "Minimum Outdoor Temperature" setting to the lowest possible value. Now the Compressor to Aux Runtime is not grayed out. Compressor Minimum Outdoor Temperature ‒ Sets the minimum outdoor temperature below which the compressor will not run. Aux Heat Max Outdoor Temp = Compressor Min Outdoor Temp. In 600 seconds the temperature drops by about 1F and I don think the HP alone will able able to maintain/increase the temperature (at least why it’s 30F outside) That's why, recently, I awoke feeling like I was sleeping in a sauna. Ecobee pops up with a warning saying not to turn it off, and set it to 35F. Hello ecobee. Can you please implement another value, let's say -13.6C (which would be … Office: 256-428-1983 Service@ConditionedAirSolutions.com. Compressor Minimum Outdoor Temperature: The compressor will not run below this outdoor temperature. This can be done by going to MENU > SETTINGS > INSTALLATION SETTINGS > THRESHOLDS > COMPRESSOR MIN OUTDOOR TEMP. Hello ecobee. This options allows you to use an outdoor temperature … Unless the heat pumps they install in Arizona are significantly different than those in the midwest, you should be able to set that to 0°F. This performs two functions. Can you please implement another value, let's say -13.6C (which would be … This is more common on older, original equipment. Could this be the case? The HVAC contractor made a house call and didn't find anything wrong with the heat pump unit. ecobee3 lite, call ecobee customer support at 877-932-6233. 1 User Guide ecobee3 ©2014 ecobee 250 University Ave | Suite 400 Toronto | Ontario | M5H 3E5 Canada Toll free 1.877.932.6233 www.ecobee.com e3 -UG R001 After lowering it in stages down to 25F, the heat pump seemed to be able to maintain the setpoint without aux heat. Can you please implement another value, let's say -13.6C (which would be … Compressor Min Outdoor Temp On Thermostat: 1. That is, weather at your house, not the weather station. This performs two functions. Compressor Min Outdoor Temperature This is the outdoor temperature where your compressor will no longer be allowed to run. Aux Heat Max Outdoor Temperature: set to your balance point, which you can find out where the outside ground temperature cannot heat your home sufficiently – this can be seen by looking at your heat profile diagram. Hello ecobee. outdoor compressor stage (speed). For heatpump systems, its also crucial to know and set the minimum outdoor temperature that the heat pump can run with - otherwise the thermostat will lock out the heatpump and change over to aux heat as the weather outside will be too cold to run the heatpump unit that's sitting outside. Yes, this can happen. Min Outdoor Temp: Allows you to set the minimum outside air temperature at which the compressor will be disabled. The ecobee EMS can be configured to perform a number of predetermined actions through the use of the 2 dry contact inputs and/or the 3 accessory relays outputs. I completely locked out the heat strips by setting the outdoor temperature threshold for aux heat to 25F and the minimum compressor outdoor temp to also 25. Get in touch with our support team. HVAC equipment manufacturers and the Air … Read the ecobee … compressor min outdoor temp (prevents compressor running when the outdoor temp is too low) heat differential temp (difference between current temp and set temp before system calls for heat again) – sometimes called temperature … I also offer my consulting services for more precise recommendations for your house layout and lifestyle. Hello ecobee. Discharge temperature should usually not exceed 200F and in no circumstances be higher than 215F. *This must be at least 5 degrees higher than your selection in Part 1, Step 6. New comments cannot be posted and votes cannot be cast. that states, “Compressor min Outdoor Temperature for air to air Heat Pumps should not be disabled. Ecobee Inc. of Toronto, Canada, sells a range of Wi-Fi enabled thermostats, principally in the Americas. You will receive a warning message that states: “Compressor Min Outdoor Temperature for air-to-air Heat Pump should not be disabled. Now the Compressor to Aux Runtime is not grayed out. After … stage1HeatingDifferentialTemp: Integer no: no: The difference between current temperature and set-point that will trigger stage 2 heating. I use Beestat and my 0F Heat change is 20F. There is no other way to provide this information to the ecobee. As the overnight lows approached freezing, the heat pump didn't seem to keep up and morning temps in the house were much cooler than the Ecobee setpoint. ecobee 3 recommends 35˚F.” The manufacturer of your HVAC equipment does not recommend disabling the outdoor compressor nor does ACCA Manual H. 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