So running … Instead, the heat pump will maintain the set … Allow Heat [...] pump/Auxiliary Heat to run simultaneously If you select [...] Yes and there is a source of auxiliary heat, both auxiliary [...] heat and heat pump will turn on. So, I have an option of using my gas fire logs or manually setting the thermostat to emergency heat. I was pouring through the ecobee settings again and noticed that the upstairs unit defaulted to "disable simultaneous heat pump and aux" whereas downstairs unit was not disabled. Paired with any ecobee thermostat, this new sensor is key to unlocking the full potential of your ecobee experience. See ecobee 3 installation documents if any other source of heating (e.g. W2, AUX and or E (Emergency) wiring connections will normally connect to the ecobee3 W1 terminal. You need to set the heat pump "Min outdoor" temp as well as setting "Aux Heat Simultaneous Operation" to disabled. EM heat is an option on your thermostat that you can manually turn on to activate backup heating. Select Enable Aux Heat Simultaneous Operation; select Next. say your heating load is 20,000 btu , and your heat pump is rated 12,000, your aux would be sized to cover 8,000 btu (8000 divided by 3.413) or 2.5kw. These are the recommended settings for a single-stage all electric air to air heat pump. Their documentation says just to cap off any E wire. Back ecobee … ecobee3 manages auxiliary heating through the W1 & W2 (if there is more than 1-stage of aux heat) terminals outputs. I use the Ecobee they also have features which allow you to set many aspects of heat pump/aux heat control (I use Ecobee Smart Si thermostat, Ecobee 3 is newest version of their product, assume they have all the same if not more features than I have with Smart Si). Does there exists equipment, ductwork and controls to simultaneously run a gas furnace and heat pump? That will consume more energy and put out less heat, potentially leading to a much higher utility bill. The ecobee Smart Thermostat uses a unique method Allow Heat pump/Auxiliary Heat to run simultaneously for staging for multi-stage heating or cooling. How to configure your ecobee thermostat for use with a geothermal heat pump The ecobee has the ability to recognize whether your system is a geothermal heat pump or an air-to-air heat pump. If you are not experiencing one of the 3 situations listed above but your heat pump is running on AUX heat, your heat pump likely needs a professional repair. Select Air to Air or Geothermal depending on the type of your heat pump system 3. Step 6 For O/B Reversing Valve: for Rheem and Ruud Equipment Only, Select On Heat-or-for all other Equipment, Select On Cool then select Next. Hello, I have a heat pump with electric heat strip auxiliary heat. But the what the wiring diagram for this unit wants done is for W1 at the thermostat to go ONLY to "W" on the HP. The new default setting is “No heat pump with auxiliary heat simultaneously.” If left as the default, this setting will cause the compressor to turn off whenever the heat strips come on. As we mentioned above, AUX heat usually costs up to 50% more than heat transfer , which means if your system is running on AUX heat when it shouldn’t be, your heating bill is likely going to be a lot higher than you’d like it to be. 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. Aux Heat Runtime Alert- Sets the amount of time that the Auxiliary heat source, if installed, can run continuously before an alert is generated. 4. This is the outdoor temperature where your compressor will no longer be allowed to run. Aux Outdoor Temp Alert- If you have a heat pump with an auxiliary heat configuration, you can configure your ecobee3 to generate an alert if the auxiliary heat is called for when the outdoor temperature exceeds this programmed set point. Allow Heat Pump/Auxiliary Heat to Run Simultaneously If you select Yes and there is a source of auxiliary heat, it will turn on in addition to the heat pump. We also have a Aprilaire 600 humidifier with manual humidistat. Then the HP will send W1 back to the AH. They were great! I have a Rheem heating system (electric heat pump) for the upper level of the house. This may be a positive or negative for … The heat pump also wants to control the aux heat to a certain extent. My electric company recently installed Ecobee3 Lite thermostats in the house as part of their energy savings program. The model number is RH1T3617STANJA. Above this level, the auxiliary heat will not be activated. Ecobee allows you to control heat pump/aux settings at a much more granular level. Our contractor had installed a Honeywell Vision Pro 8000 Thermostat. Step 6 Select between 25 and 40 degrees (and note selection for Part 2, Step 6); select Next. I'm running an ecobee 4 with a dual fuel heat pump setup without problem. The heat pump will be energized for the first 30 minutes. is present. Threshold settings for heat pumps with auxiliary heat can be configured to operate for comfort or for energy savings. 1) “Do you want to allow the heat pump and aux heat to run simultaneously?”Choices are enable or disable. So here's how dumb thermostats are typically configured for heat pumps. If you’re looking to save energy this winter, you can make a few of the simple adjustments listed below on your ecobee3 lite thermostat to limit your heat pump from using auxiliary heat. The time after a cooling cycle that the fan will run for to extract any cooling left in the system - 30 second default (for not) heatPumpReversalOnCool: Boolean no: no: The flag to tell if the heat pump is in heating mode or in cooling when the relay is engaged. 1 year ago. We prefer the house a little cooler at 67 and set back to 64 in the evening and away temp. At that point, your heat pump might need a bit of auxiliary heat – and if you want things to run smoothly, you might want to install a thermostat with auxiliary heat as well. One mistake that people do with heat pumps is that they switch on auxiliary heat but turn off the compressor or heat pump when outside temperature falls below certain point. water, propane, natural gas, etc.) That will consume more energy and put out less heat, potentially leading to a much higher utility bill. is present. This is simple with Nest but more complicated with Ecobee. Most heat pump have electric resistance wire as auxiliary heat source which is very costly in terms of producing heat. water, propane, natural gas, etc.) These are the recommended settings for a two-stage all electric air to air heat pump. See ecobee 3 installation documents if any other source of heating (e.g. I understand that the HP would want to sent a W signal back to the AH for when it's in defrost mode. This maximizes the efficiency of your air source heat pump before less … Select the heat pump menu. Using the 10kw heat strips has the opposite problem in that it will cycle 4 or 5 minutes and then cycle off only to repeat every 5 minutes. The issue with any Ecobee is that they don't believe in emergency heat. The all-new, fully-redesigned ecobee SmartSensor exponentially amplifies the power of all ecobee smart thermostats. You have to configure energize on heat or cool for the reversing valve, simultaneous operation of aux, and min temp to run the heat pump. This is the recommended setting to keep your heat pump from running at the same time as your gas furnace backup heat to maintain comfort at lower temperatures. ecobee.com. based on outdoor temperature or on indoor heat differential, etc. Even though a heat pump becomes much less efficient and useful at temperatures below 20°F, it still works. Enable Disable Warning: Set this to Disable if natural gas or oil is the Aux Heat fuel, otherwise Heat Pump failure may occur. In order for the ecobee to make this distinction, you will need to … 2. If you have a heat pump with auxiliary heating, when the outdoor temperature drops below this value, the ecobee will engage your aux heat and rely on aux heat to heat your home. For better energy efficiency and comfort, change this setting to “Run heat pump and auxiliary heat simultaneously.” This way your auxiliary heat will supplement your heat pump rather than replacing it when the temperatures drop outside. If you’re receiving many “Aux heat running” alerts, you may want to adjust this setting (after confirming with your heat pump manufacturer the lowest temperature your heat pump can safely function at). The heat strips are located downstream of the coil. My question is, which is the better approach? I would like to have a single larger higher efficient heat pump installed to handle both the main level and sun room. ecobee SmartSensor is the thermostat room sensor with heightened capability to deliver comfort and savings. (Ecobee recommends set to disable if natural gas or oil is aux heat fuel, otherwise heat pump failure may occur)2) “Configure the compressor minimum outdoor temperature. The stats data is awesome & much more detailed than Nest stats. This feature is typically used for air-to-air source heat pumps. Ecobee has detailed run times for stages, fan, heat, cool, aux, etc. Wrap Up Sometimes, finding the best thermostat for heat pump with auxiliary heat can be quite challenging – but as long as you know what to look for, the process should be quite easy. For yours you probably also need to configure "thermostat controls fan" since it looks like your Y wire completely bypasses the furnace on a call for cooling. When it gets really cold, (15 degrees or less) the heat pump will run continuously since it does not have a lock out external thermostat. I have a 10yr old gas furnace for main level plus a 1.5T heat pump for a sun room. So that would likely explain the auxiliary issues. ecobee.com. Previously when I measured the heat coming out using a digital thermometer. Also has humidity, sensor, weather impact etc. Ecobee's documentation is not the best though I do see that both the Ecobee3 and Ecobee3 lite are showing dual fuel support. I had two … Heat Pumps . This is the recommended setting to maximize the efficiency of your air source heat pump before less efficient strip heat comes on to maintain comfort at lower temperatures. I've switch that to enabled and will monitor. I had to contact support for help on bypassing the heat pump. Step 6 For O/B Reversing Valve: for Rheem and Ruud Equipment Only, Select On Heat-or-for all other Equipment, Select On Cool then select Next. My thermostat can be configured to allow the heat pump and heat strips to run simultaneously, or to turn off the heat pump when the heat strips are running. Select Disable Aux Heat Simultaneous Operation; select Next. If you have a heat pump installed: 1. Aux Heat Settings (Heat Pump Systems with Aux Heat) Aux Heat Max Outdoor Temperature ‒ Sets the minimum outdoor temperature above which the auxiliary heat will not run. EM heat is NOT the same thing as AUX heat: AUX heat signifies that your heat pump has automatically switched over to backup heating because temperatures are too low. David, I bought an ecobee for our heat pump. In this mode the heat pump is running in emergency heat mode and not supplemental heat mode. Aux Heat Minimum On Time ‒ Sets the minimum amount of time for the auxiliary heat to stay on during heating. It has many lockout options, e.g. Our HVAC is brand new, installed when the home was built in 2011, 4 ton Amana Distinctions heat pump with electric auxiliary as a backup. heat pump (air or geothermal) with auxiliary heat This diagram illustrates the wiring connections for a heat-pump system with auxiliary heating. aux is what the heat pump can’t cover. ecobee Next Allow the Heat Pump and Aux Heat to run simultaneously ? Step 6 Select Disabled for Compressor Minimum Outdoor Temperature; select Next. The heat pump compressor has gone bad so am looking to upgrade. 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