The lockout temperatures are only enforced when the Nest Thermostat is connected to Wi-Fi so it can track outdoor temperatures. Maybe on anything but a Nest. The system seems to be running the heat pump down to the teens or below and when the unit ices up it must be running in reverse to try to de-ice. In this video we go over the heat pump balance feature in the programming of the NEST thermostat. Basically automation is part of a subject called control systems. than the heat pump compressor) is referred to as the "Compressor Lockout" setting in the website and app interfaces. What does compressor lockout mean? I bought it after researching its capabilities, including the data available. Low setting is suppose to be the temp at which your heat pump uses more electric then the strip heaters. Some decisions for some systems are made based on outdoor temperature (heat pump Compressor lockout, heat pump Emergency heat lockout, Window frost protection, ventilation lockout) and, if connected to Wi-Fi, the thermostat will pick up outdoor temperature and humidity from the internet. There are two different lockout temperatures that are set on the Nest. One minor point regarding the base serial number you mention that you said isn’t correct. Connect your Nest Thermostats, Nest Cams, Nest Doorbell, or Nest devices and add Nest … The first is the Aux lock-out temperature, when the location is above this temperature, it will not use Aux. Heating or cooling system does not respond • Touch SYSTEM to set system to Heat. 6 Indicates a malfunction with the system. Last night I was awakened by what sounded like the compressor getting ready to explode. Post photos, respond to polls and access other special features. Nest uses wi-fi only and gets the outdoor temp from the nation weather service which gets the temp from the local airport. My settings were just to monitor and adjust as the system worked in various temps. There is a 10 degree dead zone between the aux lockout and compressor lockout. Units might come with a switch that automatically shuts the unit down when a home or other structure reaches, or drops to, a certain temperature. Select “Lock” when … Help online: http://support.nest.com/certified, Nest Certified Professional support: 1-855-VIP-NEST (1-855-847-6378). One is to use the “–index” argument. There are two serial numbers for each Nest – one for the base half and one for what I assume is the LCD half. Get contact info, branch hours, directions, and find out whats happening at the branch. That actually worked to keep the compressor running into lower temps. Otherwise it has no idea when to keep the backup heat from coming on. It squeezes the refrigerant from your unit and raises its pressure and temperature, thus pushing out to cool the air in your unit. Scroll to the right and select “Lock”. In modern days where automation has reached the residential and is no longer the norm of only industries and factories there are certain terms or technical jargon that people still struggle with. There may be one or more loose wire connections in … OK, thanks. If you want to be able to keep the compressor running and lock out the backup heat, you need the wi-fi so that the thermostat will "know" the outdoor temperature. I’ve provided two ways to do it. Could be 15, 20, 24 degrees F etc. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. The Food Stamp Program, administered by the U.S. Department of Agriculture, is proud to be distributing the greatest amount of free meals and stamps EVER. Sign in to the Nest app in your web browser with your Google Account or non-migrated Nest Account. Therefore, the thermostat is likely to sense that the room is already cool and will turn the AC OFF. But on the Nest Thermostat itself, the term "Lockout" is not used, instead you see "Use the heat pump compressor when the outdoor temperature is above". AFAIK, the Nest only supports WIFI outdoor temps over the interweb. Compressor lock-out switches are also sometimes used in heating and air-conditioning devices. It is on a split system Trane heat pump. The idea is that you have a control parameter(in our case temperature) and […] Thanks for sharing these details and I'm sorry to hear you've been experiencing issues with your Nest Thermostat. I've had my Nest for 2 years now and generally it does what I want. Hours: 5am-9pm (pacific), 8am-midnight (eastern). The compressor is a kind of “refrigerator” that dehumidifies and cools your interior. Smart thermostats have many advanced features that include internet connectivity, downloadable energy tools and access to weather data. Make sure the temperature is set higher than the Inside temperature. The Thermostat belongs to me. GitHub Gist: instantly share code, notes, and snippets. Ask Our Pros-Owner Assistance - NO DIY advice will be given. By default Nest will activate the heat pump balance, which then automatically determines the aux heat lockout temperature. Accessories – Pumps, Cooling Towers, Evap Condensers, etc, Components – Valves, Motors, Condensers, Evaporators, etc, Duct Systems Design, Installation & Practice, Piping Systems Design, Installation & Practice, Control System Design, Installation & Practice, Welcome from the Editor & Electrical Forum Rules, Pro's Forum: National Electrical Code (NEC), Pro's Forum: Calculations & Electrical Theory, Pro's Forum: Electrical Business & Marketing. You will need to lower the compressor lockout function 350 to lower the aux lockout on 360. I remember the earlier Nest stats (version 1 or 2), would not allow you to lock out the back up heat very low, maybe 50 degrees or so. Wait 5 minutes for the system to restart safely, without damage to the compressor. With this extreme cold, however, I've hit a problem. The aux heat wire is connected to W2 Aux. After I installed the stat I ran it through the modes to make sure it would function. GoogleNestDataFields1. Heat pump compressor lockout temperature? What you would have to do is fool the thermostat and tell it that you were a few hundred miles south of where you really were. For Nest users who have migrated to a Google Account, the Nest Web APIs work only when the home.nest.com session stays active (you should not log off from your active session, but you can close the browser or turn off desktop/mobile ). These features provide homeowners with increased control of their home’s heating and cooling energy usage. Both options are untested, as I only have one nest. ... For instance, you'll see the Nest Leaf to let you know that you've selected an energy-saving temperature. http://hvac-talk.com/vbb/showthread.php?t=1241, http://hvac-talk.com/vbb/showthread.php?t=116113. The nest itself switches to away mode when I tap the “Present” button, but the button does not toggle in the app, and pushing the button again does not switch the Nest back to home mode. 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. Lock out or Reset. But on the Nest Thermostat itself, the term "Lockout" is not used, instead you see "Use the heat pump compressor when the outdoor temperature is If the Nest is set to operate in the Airwave mode, the compressor gets turned OFF but the fan continues to keep running and dispersing cooled air. • Compressor protection feature is engaged. For example, “–index 1” to use the second nest. No problems with heat or cool until this morning. If Wi-Fi is not enabled, Auxiliary heat will come on automatically when it takes longer than expected to reach the current target temperature I have just begun using the new Device Access API, and I find the list of traits returned for the Nest Thermostat to be extremely limited compared with what Nest provided when I purchased my Thermostat before Google took over. By default, Nest will lock out the Setting compressor and auxiliary heater when the outdoor temperature is above 50°F but will not lock out auxiliary lockout temperatures the compressor at any temperature. The #1 question asked by NEW MEMBERS. Last summer I installed a customer supplied Nest thermostat. 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Compressor Damage. 1 Like seannymurrs (Sean Murray) November 5, 2014, 12:31pm Welcome to Grainger Branch #232 in Madison Heights,Michigan. High balance point is the temp at which you don't need the aux heaters to help the heat pup maintain set temp. # 7 • … When it is damaged, it will … You can view them via the “Settings->Technical Info” menu on the Nest itself or … So lets say Balance point is 25* F and Compressor lockout is 5F*, then: Above 25*F Only Heatpump stage 1 and 2 can run, Aux heat will not engage to help meet temperature setpoint. Overheating caused ... Snowflake and Flame are displayed (flashing) if the thermostat is in lockout mode to prevent the compressor from cycling too quickly. I had Nest support go through this with me and he just went off "Nest Sense" and to manual system where I set the compressor lockout … Components – Coils, Heaters, Motors, etc. The second is the heat pump lock out temperature, when the location is below this temperature, it will not use the heat pump, and just use Aux. Nothing could get the fan to turn in other than heat mode. In other words if your aux lockout doesn't go lower than 40 degrees then your compressor lockout is set at 30 degrees. Our 20th year anniversary is May 21, 2020. Manual will be automatically added to "My Manuals", nest Learning Thermostat Installation Manual, Thermostat nest Learning Thermostat Installation Manual, Thermostat Nest Learning Thermostat Installation Manual, Thermostat nest Learning Installation & Configuration Manual, Thermostat nest Learning Thermostat D3 Installation Manual, Thermostat nest Thermostat E Installation Manual, Page 10: Wiring Diagrams: Conventional Systems, Page 14: Wiring Diagrams: Heat Pump Systems, Page 16: 2 Stage Heat Pump (Aux/Emergency Heat), Page 17: Wiring Diagrams: Humidifiers And Dehumidifiers, Page 21: How Do You Configure Special Systems, Page 26: Wiring Error Quick Reference Guide, Page 33: Quick Troubleshooting Reference Guide. Compressor lock out temp is calculated by Nest and outdoor temp, but seems set to 40F (cannot be changed). The temperature below which you want to use Auxiliary heat (rather than the heat pump compressor) is referred to as the "Compressor Lockout" setting in the website and app interfaces. I’ve been seeing more Wifi issues recently with my Nest thermostats. Participate in over 40 different forums and search/browse from nearly 3 million posts. Nest – Smart Thermostat for Heat Pumps Nest 3rd gen model will turn ON the aux heat system only when it is necessary (only when the outside temperature falls below the aux heat lockout temperature). It seemed to work fine. I have a NEST thermostat and for some reason it is not turning on our air conditioner. Add a PIN From the Nest Thermostat To set up a passcode right from the Nest Thermostat itself, start by pushing on the unit to bring up the home screen main menu and select “Settings”. I don’t see a pattern to the problem, and it seems to randomly affect all of them (sometimes at the same time, but often just one). Yes... we are 20 years old. 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