I control that temperature through my WIFI Thermostat. For some homeowners, the “AUX” heating source will be electrical resistance heating, which are essentially large wire heating elements that are heated by electricity. Turning off “Heat Pump Balance” means that the AUX heat only kicks in depending on what you set as a lockout temperature. Monday, February 15(Ontario Family Day)9 a.m. to 9 p.m. EST. It does seem to be kicking in frequently instead of normal heat and got an alert that my "Aux Heat was running for more than 180 minutes". 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). Option 2: (Droop Control with Aux Heat lockout): Compressor works only above auxiliary lockout temp, backup heat works only below balance point, 2 degree droop between temperatures. For example, with an auxiliary heat lockout of 40F, only the compressor will run above that temperature. This applies to a heat pump with electric back up heat. Ventilation control with ERV/HRV or fresh air damper. The heat pump lockout temperature can be used to force a switch from heat pump operation to auxiliary heating. At temperatures above lockout, the system operates like non-restricted mode. The thermostat shall have a compressor outdoor lockout and backup heat outdoor lockout to turn off the heat pump or backup heat based on outdoor temperature. Please Note: if OAT is less than Auxiliary Heat Lockout temperature setpoint the auxiliary heat may engage e. Each test wil l run for a maximum of 60 minutes or until manually terminated : f. Wait at least 10 minutes before taking static pressure readings and inserting flow plate for TrueFlow plate test. In fact, electric resistance heating is about 50% more expensive than heat transfer. When the heat pump can no longer maintain the desired temperature setting, then the auxiliary heat must come on to assist. But don’t worry—it’s usually normal. With Heat Pump Balance, you don't have to worry about the AUX lockout temperature. I would like to change my heat pump balance point so that the heat pump isn't used once the outside temperature drops below above 40F. The auxiliary heat (electric resistance heat, or back-up heat) is minimized since it is more expensive. If outdoor temperature is in-between the high and low balance point, both the heat pump and auxiliary heat sources can operate. Option 9 (Heat Pump Lockout): Set at Of(f), the compressor (heat pump) will always run (with the auxiliary) no matter how low is the outdoor temp. See Dual Fuel Heat Pump control on page 22. Auxiliary Heat. Mine is not Honeywell, so check your instructions. Temperature management is one of the key challenges of the game. The auxiliary heat comes on when it is 1.5 degrees cooler in the house than the thermostat set point. Short for auxiliary heat, this system is designed to heat your home up quickly instead of waiting for the cold heat pump on the exterior of your home. mommom1 . Pssttt...if you live in Phoenix or surrounding areas, we can help you determine what’s wrong with your heat pump and fix it. This extra heat kicks on at a preset temperature. There isn’t enough heat getting to the heat pump. My question is, is there a way around this to actually set the lockout temperature? If your AUX lockout temp is 40°F/4.4°C, then auxiliary heat will come on when the outdoor air temperature drops below 40°F/4.4°C. We have a heat pump and recently installed an ecobee thermostat. 5 years ago. 346. Auxillary Heat implies that you have an Air Source Heat Pump. Secondly, it means the outdoor temperature is too cold, so your heat pump is using “backup” heat to heat your home. As we mentioned above, heat pumps absorb heat from the outdoor air and then move that heat indoors. Here’s how it works. Selectable 0, 12 … As we mentioned above, heat pumps absorb heat from the outdoor air and then move that heat indoors. George Brazil Air Conditioning and Heating provides the Phoenix area with, usually costs up to 50% more than heat transfer, How your heat pump works (AUX heat vs. “normal” heat), When it’s okay for your heat pump’s AUX heat to be on, What do do if your AUX heat is on and shouldn’t be, Steam and/or water coming from the outdoor unit, The fan in the outdoor unit has stopped running, A blinking light on the unit to indicate it’s in defrost mode (only on some heat pump models). Just leave your thermostat’s setting on Heat, and let it do its thing. Most heat pumps are designed to automatically switch to AUX heat when the indoor temperature is 3 degrees colder than the thermostat setting. The Emergency Heat setting should only be used when the outdoor unit of your heat pump system is not working properly. This heat setting should only kick on when the heat pump can’t produce enough heat to warm your home or if your heat pump goes into defrost mode. Auxiliary heat (Only for heat pumps with auxiliary heat) Low battery Temperature setting warning Display screen Press the FAN button to select: Auto: Fan runs only when heating or cooling system is on. Location: usa. Selectable from -10° to 35°F or off*. This way, the aux heat can engage if you have a system lockout, and keep the house from freezing. If temperature is not reached in a reasonable time, set the upstage timer (Function 0346). Need a professional’s help to diagnose your heat pump? 35), the compressor is locked-out and ONLY the auxiliary will run when the outdoor temp drops below the specified temp. Although this situation is rare in Arizona, it’s common in colder parts of the country. On my system, they are set as follows: Option 08 = Of Option 09 = 45. Heat transfer is the most efficient (and cheapest) type of heating, and it’s your heat pump’s main solution for heating your home. 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. On: Fan runs continuously. Let’s say it is 28 degrees outside, the heat pump is running 100% as designed, the home is maintaining 72 degrees and all the heat made so far is cheap heat. The latest wiki has been moved here.. aux_heat_temperature_lockout – Outdoor temperature at which auxiliary heat will come on when thermostat is calling for heating . Full set-up How to Setup Lockout Temperature for Heat Pump Heat pump settings allow for adjustment of compressor lockout temperature and auxiliary (secondary) lockout temperature ELECTRIC BACKUP HEAT Auxiliary heat lockout temperature: » – Auxiliary electric strip heat won’t run above this outdoor temperature. Auxiliary heat refers to your heat pump’s backup electric resistance heating. Most heat pump thermostats bring on the back up heat when the temperature difference between the room and that thermostat setting is 3 degrees or more. So I would like to set the heat pump not to run below, say, 20 degrees and just use the aux. aux_heat_temperature_lockout is one auxiliary… However, when the outside temperature is 32° F or below, your auxiliary heat will usually turn on automatically. 367. The TH8110 Thermostats provide temperature control for gas, oil, electric and heat pumps for 1 heat, 1 cool systems. There are two main reasons as to why this may happen. Yes, Logic Option - No Sensor Required or Outdoor Sensor Option - Outdoor Sensor Provides Outdoor Temperature Setting to Lockout the Heat Pump and Switch to Gas Heat Heat Pump Auxiliary Lockout Control - Outdoor Sensor Option Outdoor Sensor Provides Outdoor Temperature Setting to Lockout Auxiliary Heat Remote Sensor Options 1 Indoor or Outdoor Power Source Battery, Hardwire, Power … And if you do find yourself in the position of needing to use your emergency heat, turn it on, but then call one of our Beach Air technicians to come out to service your heat pump. For example, if your AUX lockout temp is 40ºF or 4.4ºC, then AUX heat will come on when the outdoor temperature drops below 40ºF or 4.4ºC. This is when the outside is around 35-40 degrees and the indoor temperature is around three degrees cooler than the thermostat setting. During this time, the system will rely on AUX heat to keep your home warm. As we mentioned above, most heat pump systems are designed to switch to AUX heat when the indoor temperature is 3 degrees colder than the thermostat setting. Why does my nest say aux heat? The ecobee will run the second stage of your aux heat if the current temperature is greater than the value designated in the Aux Heat Stage 2 Temperature Delta setting. What does aux heat mean on a Honeywell system? 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. In this option, please select what you find best fits for you. If for some reason you wanted your heat pump to switch to AUX heat when there was a 1-degree difference or a 5-degree difference, you’d need to hire a professional to change the temperature differential on the heat pump board of the condenser. The important thing to remember is that “AUX” heat is fast and dependable but it’s also more expensive than heat transfer heating. For example, if your AUX lockout temp is 40ºF or 4.4ºC, then AUX heat will come on when the outdoor temperature drops below 40ºF or 4.4ºC. What this means, unfortunately, is that it’s more expensive than the conventional heat provided by a heat pump. I am hoping to get more low temperature use out of my heat pump so as to use the heat strips as little as possible. Once it gets close to the actual setpoint, the aux heat de-energizes and the heat pump mode of the system remains operating to generate heat and will shut off if the temperature is satisfied. Some heatpumps can take longer than others to warm up and finally start giving heat. If it gets colder outside than the set lockout temperature, your heat pump will use AUX heat. Off Turning off “Heat Pump Balance” means that the AUX heat only kicks in depending on what you set as a lockout temperature. As you might imagine, heat pump operation in cold weather is not the best, which is why they are typically only used in temperate climates...think beaches, palm trees, and oranges. Member. What Does Auxiliary Heat Mean on My Thermostat? And if not, what's my best alternative? This is an outdated page. The idea of heat pump control is to use the most economical heat source first, and the auxiliary heat source, usually electric resistance heat, only when the heat pump can’t handle the load. However the only option I seem to have is to run the heat pump "Always", and according to Nest support that can't be changed. Similarly Chilliness can spread by air … HOWEVER, as we also mentioned above, electrical resistance heating (AUX heat) is more expensive than heat transfer. Auxiliary heater Part #: 7E0963273A Component: STH-T5GP2 Coding: 4101 (hex) Fault codes: 00056 Blower engine for temperature sensors inside (V210) 00002 Transmission Control Unit 00057 Actuator shut-off valve b-column and floor space, right (V211) 00135 Left Front Wheel Acceleration Sensor (G337) I think that the fault code descriptions may be wrong, especially the 00002 … December 11, 2017. Upvote #2 12-09-14, 01:54 PM K. ksefan. 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. REVERSING VALVE SHIFT DELAY Limit excessive noise in and out of a defrost cycle. If you use the lowest setting, chances are your AUX heat won’t kick in anymore and the notification will be gone. The Lockout temperature is set lower than usual but not to the lowest setting. Heat pumps work most efficiently when maintaining a temperature. This is typically caused by one of three factors: when it’s below 35° outside, you’re trying to heat your home by 3° or more, or your heat pump is in defrost mode. Our suggestion would be to reach out to a professional as soon as possible. Need more help? Auxiliary Heat Lockout must be set to ≤ 35 degrees to meet specification . To be safe, disable the Aux Lockout if you go away. Now I keep on getting alerts that the Aux heat is running. If ice starts to build on your heat pump’s outdoor unit, your heat pump will undergo a “defrost cycle” to melt it. What could be the problem? PTCS Heat Pump Thermostat Support Sheet . Your heat pump absorbs heat from the outdoor air via refrigerant lines and carries that heat inside where it’s used to heat your home’s air. Many homeowner misuse this setting more than any other. iii Glossary of Terms Auto-Changeover: A mode in which the thermostat will turn on the heating or cooling based on room temperature demand. With heat pumps, it's best to set the temp you want and leave it alone. Auxilliary heat lockout? If your heat pump seems to be stuck on auxiliary heat mode and the temperatures outside are above 35 degrees, you should call the professionals at Precision Heating & Air. This 3-degree “trigger point” is programmed into the thermostat by the manufacturer. Auto Fan System MCR29409 Auxiliary Heat On Heat Setting Inside72 72 Replace Battery Auto Fan Heat System MCR29406 Heat: Heating system control. By default Nest will activate the heat pump balance, which then automatically determines the aux heat lockout temperature. should I use the aux heat and lockout the heatpump. Installer Setup (ISU) Installer Setup ISU # Name Settings Default Notes 3120 Backup Heat Fahrenheit: This ISU is used to lockout the auxiliary heat Lockout when outdoor temperature is above this 5° F to 65° F (in 5° F setting. AUXILIARY HEAT LOCKOUT Above the selected temperature, auxiliary heat will only run during defrost operation. And when outdoor temperatures drop too low, there’s simply not enough heat in the outdoor air to keep your home warm. So before you call a professional, check the outdoor temperatures. Auxiliary heat can handle more extreme temperatures since it uses electric heat strips. As the name indicates, auxiliary heat, or emergency heat depending on your system, is just a secondary heat source. Contrôleur CVCA et capteurs de température Références de modèle LRF2-TWRB-XX* Capteur de température sans fil LR-TEMP-FLSH** Capteur filaire encastré Kits : LR-HVAC-PKG-WH Le système comprend : –1 contrôleur CVCA** –1 boîtier d’affichage mural seeTempT (°F) (WH) –1 capteur de température sans fil (SW) –1 capteur filaire de retour d’air LR-HVAC-PKG-C-WH Le système compr ... and Discharge Temperature Sensor is available. For example, let’s say that you wake up to a cold home (62° F) and immediately raise the thermostat to 68°. Note: Normal programmable thermostats have one way to control AUX heat: the AUX lockout temperature. Single stage heat pumps with or without auxiliary heat 250mv – 750mv millivolt heating systems: Control Range: 45° to 90° F ( 7° to 32° C) Display Range: 40° to 99° F (5° to 37° C) Accuracy +/- 1° F (+/- .5° C) Temperature Differential.5°, 1°, or 2° F (0.2°, 0.5°, or 1° C) Storage Temperature: 14° … An auxiliary fuel pump supplies the fuel at low pressure to the FFBH. Auxiliary heat lockout with outdoor sensor or Internet weather. Signs that your heat pump is in defrost mode include: 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. The temperature drops to 68 degrees inside. Dual fuel and aux heat lockout with outdoor sensor or Internet weather. Page 21 T10 PRO SMART THERMOSTAT WITH REDLINK Table 5. As the temperature drops two to three degrees below the set temperature, many systems will signal for the auxiliary heat to come on. • Displaying the remote/outdoor temperature on the LCD • Using the remote/outdoor temperature to lockout the compressor or auxiliary heat • Using the remote/outdoor temperature instead of the built-in sensor Scheduling function with two or four periods per day and the following day/week options: And, because a heat pump stops heating your home during this process, some models will automatically switch to AUX mode until the defrost cycle is over. c. Auxillary Heat Lockout (strip heat lockout) must be set to "35" or lower to meet PTCS specification . Aux heat should only kick on when the heat pump can’t produce enough heat to warm your home on its own. So first, check to see if your thermostat only says AUX when you raise the thermostat 3 degrees or higher than the current temperature of your home. The TH8320 Thermostats provide temperature control for gas, oil, electric and heat pumps for up to 3 heat, 2 cool systems including dual fuel operation. Available settings are: Off, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55. If your AUX lockout temp is 40°F/4.4°C, then auxiliary heat will come on when the outdoor air temperature drops below 40°F/4.4°C. Note: Normal programmable thermostats have one way to control AUX heat: the AUX lockout temperature. If so, that’s normal. Either of these can be set to Off, or from 5-55F in 5 degree increments. ...The temperature outside is below 35° Usually, once outdoor temperatures fall below 35°, a heat pump will struggle to keep your home warm and will automatically switch to AUX heat. When that happens, the heat pump will reverse the flow of refrigerant so that hot refrigerant is sent to the outdoor unit (to melt the ice). For example, let’s say that you wake up to a cold home (62° F) and immediately raise the thermostat to 68°. If you use the lowest setting, chances are your AUX heat won’t kick in anymore and the notification will be gone. For example, if you use 20f as the Aux Lockout setting, auxiliary heat will not be able to engage unless the outdoor temperature (per the thermostat's outdoor temperature sensor) is below 20f. When the heat pump can no longer maintain the desired temperature setting, then the auxiliary heat must come on to assist. In most cases, lockout temperature is 40ºF. However, when your heat pump is unable to meet demand via heat transfer, it will tap into its backup heating, or “AUX” heat. Cool Setpoint: The warmest temperature that the space should rise to before cooling is turned on (without regard to deadband). Below, we’ll look at the situations in which your heat pump is unable to heat your home via heat transfer (and may need to use AUX heat). Final Thoughts: At What Temperature is a Heat Pump Not Effective? Option 09 - Heat Pump Lockout Temperature. Because the temperature rise is more than 3 degrees (it’s 6 degrees in this scenario), the system will automatically turn on the AUX heat to help your home meet the desired temperature faster. Selectable from 0° to 40°F or off*. Most of today’s thermostats are programmable and allow you to set a schedule to match your preference. The space temperature sensor needs to be at least a two-stage thermostat. Please Note: if OAT is less thanAuxiliary Heat Lockout temperature setpoint the auxiliary heat may engage. If it’s an unusually cold Arizona day, it’s normal to see AUX heat on your thermostat. With Heat Pump Balance, you don't have to worry about the AUX lockout temperature. Consequently, it is recommended to only lower your set point by 3˚ – 5˚ when your system is in the unoccupied or night setting. In many situations, it’s a combination of both. OF (off) -- function is disabled. If you’ve been running your heat pump in heat mode and you’ve noticed that your thermostat is reading “AUX heat,” you’re probably wondering: AUX heat refers to your heat pump’s “backup” electric resistance heating. I live in Pittsburgh Pa. temps are getting to be around 14 degrees with colder wind chill factors...earlier this yr with the help of 2-3 folks on this forum I purchased a 3.5 trane heat pump and airhandler and also a tcont800 series touch screen thermostat I think everything went well. Join Date: Dec 2014. Usually, once outdoor temperatures fall below 35°, a heat pump will struggle to keep your home warm and will automatically switch to AUX heat. EM heat is an option on your thermostat that you can manually turn on to activate backup heating. Auxiliary heating is provided by a Fuel Fired Booster Heater (FFBH), which boosts the temperature of the coolant supplied to the heater from the engine. Get in touch with our support team. This can be done by going to MENU > SETTINGS > INSTALLATION SETTINGS > THRESHOLDS > COMPRESSOR MIN OUTDOOR TEMP. When outdoor temperatures reach freezing temperatures, the outdoor coils can begin to freeze over with ice. That said, even though electrical resistance heating warms your home quickly, we would caution you against triggering your system’s AUX heat unless absolutely necessary. I thank you for any replies I get. Just contact us and we’ll send one of our Phoenix techs right over. The outlet temperature with and without Aux heat depends on outdoor temp, wattage of electric heat strips and CFM setting. Emergency Heat. Auxiliary heat is allowed to operate whenever sufficient demand for heat is available. We know you have questions, so below we’ll go into more detail about: First, let’s take a closer look at how your heat pump works. Auxiliary heat is less energy-efficient than your heat pump, and it is meant to only run for … In many heating systems, auxiliary heat comes ON when the outdoor temperature drops below a certain threshold. 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). It becomes necessary once the temperature drops below a certain point. COMPRESSOR LOCKOUT Below the selected temperature the compressor does not operate, except in defrost cycle. Option 08 —Auxiliary Heat Lockout Temperature This selection is available on heat pump systems with a valid outdoor temperature sensor connected. Balance point/auxiliary heat lockout plus 2° droop. The heat pump mode is operating but can not keep up. Please Note: if OAT is less than Auxiliary Heat Lockout temperature setpoint the auxiliary heat may engage e. Each test wil l run for a maximum of 60 minutes or until manually terminated : f. Wait at least 10 minutes before taking static pressure readings and inserting flow plate for TrueFlow plate d. Of course, … The thermostat is set to 70 degrees. Do not switch to emergency heat when the outdoor temperatures dip below 35ºF––your auxiliary heat will automatically step up to supplement your heat pump. The auxiliary heat would kick in at this point to help maintain the temperature in the space. The environment can get warmer through items that produce heat, creeps through walls and resources, even your Duplicants produce and spread some heat by mere existence. Model TH6220WF2006: Up to 2H/1C Heat Pump systems or up to 2H/2C Conventional systems. Which is 1.5 to 2 degrees lower than thermostat set point - the electric heat or auxiliary heat would then come on to make up the temperature difference. 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. Aux Reverse Staging: With this setting enabled, you will also need to enable the Aux Heat Stage 2 Temperature Delta threshold setting listed above and set a temperature value. This function allows the furnace to run independently of the outdoor unit and overrides the auxiliary heat lockout function until a technician can resolve the problem. heat pump will operate - default 50°F (10°C) high. If set to a specific temperature (i.e. The thermostat shall have a compressor outdoor lockout and bac kup heat outdoor lockout to turn off the heat pump or backup heat based on outdoor temperature. If you contact me off list, I can assist with further troubleshooting. Generally, heat pumps work by transferring outside heat into your home via a process called heat transfer. 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. If outdoor temperature is below the low balance point, only auxiliary heating will operate - default 25°F (-4.0°C) low. First off, this means you have a heat pump (more on that in a moment). Hopefully this article has helped answer that question, and any others about heat pump temperature ranges, and what you can do to improve heat pump performance when it gets below 25-30 degrees. May happen you set as follows: option 08 —Auxiliary heat lockout.... Conventional heat provided by a heat pump will use AUX heat depends on outdoor temp strip heat lockout with sensor. 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