outdoor lockout backup heat

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. These two values can be set in the Installer Menu 312: "Outdoor Lockout-Backup Heat" and "Outdoor Lockout HeatPump" So lets say Balance point is 25* F and Compressor lockout is 5F*, then: to this site, and use it for non-commercial use subject to our terms of use. From the drop down menu, scroll and select “BACKUP HEAT LOCKOUT”. Simple and straightforward, this portable space heater stores well and is a great backup heating option. 6. At the same time, not having a backup heating method is of potential concern in the event of compressor failure or outdoor temperatures well below 0F, … This Class Will Cover: Install and set up of the system to work with a heat pump thermostat to lockout heat strips Removal of TXV and installation of required piping adapter kit Proper return air sensor location Things to avoid that affect normal operation of the equipment CERTIFICATION: 2 FAD distributor hours 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. I just let it keep chugging away. That temperature is called the balance point. I have a visionpro TH8321 thermostat which is running a air to air heat pump with a electric strip kit for backup in a airhandler. A Heat Pump Crash Course. And it also allows you to "lockout" the backup heat if temp is not below a certain temp, once again adjustable between 5F and 60F in 5F deg increments. 66 0 obj <> endobj 86 0 obj <>/Filter/FlateDecode/ID[<44A505C8F810BD57C95547581C0685E0><764EF5657EBF4B61A5834DD6F545B12E>]/Index[66 48]/Info 65 0 R/Length 108/Prev 136004/Root 67 0 R/Size 114/Type/XRef/W[1 3 1]>>stream I would suggest that you read your electric meter and run the heat pump for a hour, then read it again and switch to the heat strip , run for another hour and see which one uses the most kilowatts . Check Strip Heat settings a. Y (yellow) The Auxiliary Heat Lockout setting is displayed on the right Also, some people use wood stoves s their back up. As the outdoor temperature drops on a cold day, a home's heating load increases. Sorry if this is repetitive. The control can manage single tank applications as … 40 balance point ** compressor and fan operate fossil fuel backup heat only 1 option 2: droop control with aux heat lockout compressor and fan operate 40 55 balance point ** auxiliary lockout compressor and fan only Below this temp, only backup heat operates. When it gets below 40F, it loses efficiency. Depending on your thermostat, most energize aux heat two degrees below the set point. All rights reserved. The office is 600 square feet. I have my heat pump (compressor) lockout set for 40F. OK, the TH8320 is a 3-heat/2-cool model. Trane XL Series Weathertron Heat Pump, not throwing Heat??? H2šk Éÿ—÷00m¿¶—�‘:¤Àª™öŸ�iı€ }qh endstream endobj startxref 0 %%EOF 113 0 obj <>stream Aux Heat Settings (Heat Pumps with Aux Heat) Aux Heat Max Outdoor Temperature: The auxiliary heat will not run when the outdoor temperature is above this point. No one knows how to do this, but I know in some areas people have a heat pump and no backup so there must be a way to configure it. Access Test Mode for testing system at full capacity a. chance for a complicated draw pattern or control strategy to trigger resistance heat as can happen with hybrid HPWHs. In the Vancouver climate you should never have to "lock out" the heat pump . T he Compressor Lockout setting is displayed on the left and must be set to "Off" or 5 degrees to meet spec : d. NOTE- If no outdoor sensor is installed or enabled, lockouts will be displayed as OFF and are not adjustable 4. This heating method works incredibly efficiently until the outdoor temperature reaches about 35 degrees. When the backup heat droop is set to Comfort, the control algorithm will use backup heat as needed to maintain the setpoint within +/- 1 F. So, let's say you set both lockouts at 30F and the droop at 2F and you set your heating setpoint at 60F. The installer told me that's below 40F, heat pumps don't put out much heat. At the same time, decreasing temperature means less heat in the air for a heat pump to pump indoors. RH (red) Your heat pump or air conditioner are connected to a furnace or air handler inside your home. W2 AUX (black and white) If you're lucky, the cable between air handler and heat pump has an … Your heat pump should still put out some heat even when temps outside are … The fan turns on and I get only basic heat, it does not turn on the coils. 355 Compressor Lockout / Balance Point -- = Off 5 °F to 60 °F (in 5 °F increments)-15.0 °C to 15.5 °C (in 2.5 °C or 3.0 °C increments) Note: Use a wired sensor to set compressor lockout / balance point on TH6320 / TH6220. G (green) … It will run during defrost and if the heat pump can't keep up it will kick on when the indoor temp falls 2 degrees below the set point. I am hoping someone may be able to help me out! My compressor lockout / balance point is at 30° and the Backup heat lockout is set to off. Before we discuss heat pump temperature ratings, we need to bring some of you up to speed on what a heat pump actually is. When to Switch Heat Pump to Emergency Heat. Source-1 3024-6881/D or similar) doesn't require a special stat. You may freely link Usually when the outside temperature is above 30° it uses heat pump only but when it’s close to 30° it uses the back up gas furnace. I can get the heat pump to turn on and it blows air but it never reaches the set point. b. Scroll to bottom and Select "Installer Options" c. W1 (white) Basement Wall Leaks - Broken Water Pipes or something else? At What Temperature is a Heat Pump Not Effective? 2 Outdoor control sensor (select heat pumps) ** See page 11 3 Indoor sensor 0350 Heat pump compressor lockout 0 No heat pump compressor lockout [Other options: 15, 20, 25, 30, 35, 40°F (-9.5°C to 7°C)] 0360 Heat pump auxiliary lockout W2 / X2 (black) 0200 Auxiliary heat 0 Electric backup heat 1 Fossil fuel backup heat 0210 External fossil fuel kit 1 External fossil fuel kit controls backup heat 0 Thermostat controls backup heat (outdoor sensor required) 0220 1st stage com- pressor cycle rate 3 Recommended for most compressors [Other options: 1, 2, 4, 5 or 6 CPH] 0230 2nd stage com- I will set Auxilliary heat to 30F. COMPRESSOR LOCKOUT AUXILIARY LOCKOUT COMPRESSOR AND FAN ONLY COMPRESSOR AND FAN OPERATE OUTDOOR TEMP ELECTRIC BACKUP HEAT AND FAN ONLY. 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. ²¬’I Good Morning: I live in Vancouver,BC and have a 1.5 ton Trane XL13c all electric heat pump. After verifying compressor lockout in step 4, scroll to Code 312 "Outdoor Lockout BACKUP HEAT" b. Verify temperature is set to 35 degrees or less to meet spec . A screen for mode 3120, outdoor temperature lockouts will be displayed. In Roanoke Virginia I have a Carrier Heat Pump, 3 years old and probably a 3 ton... :rolleyes: Live in cold PA where the economics of heat pumps are questionable. 1 1 M28706 But heat pumps also have one huge benefit that furnaces lack: You’ve to connect your heat pumps Aux/E wires to W2-Aux/E terminal of this Honeywell thermostat. W O/G (orange) When the system was installed the technician set the lockout temperature to 40 degrees. If ISU 356 is not listed as an option, strip heat lockout is not configured and does not meet spec : b. Verify temperature is set to 35 degrees or less to meet spec. When the temperature approaches 35 degrees, the heat pump runs less than 25% of the time, even at night. This can be done by going to MENU > SETTINGS > INSTALLATION SETTINGS > THRESHOLDS > COMPRESSOR MIN OUTDOOR TEMP. Here is my equipment: Thermostat: TH6220D1051 Heat Pump: Trane 4TWB3036C1000AA. Our NATE certified, factory trained employees deliver expert heating maintenance services in thousands of homes each year, and would be proud to work in yours. suggestions. This is set at a default 35F (1.7C), so the heatpump will not be used when the weather outside is below 35 degrees Fahrenheit and … “Relatively mild” in PTCS termsis35° F. Note we are not talking about use of strip heat on a normal, stage 1 heating call. 16 hours sounds good but you could also turn it off if your droop setting works. hŞb```f``ZÇÀÂÀÀßÄ È€ ‚@V 8Ǧ>�†Ebe$5y¦ìhóŠqàhàè`èhˆè€Ëµñ00>4kg`´…A h‹3ss'c óVæZæfC¦™²T̘]sšÓÌJ„>@ì e`Ô™¤�îÒÒüŒÿ,¡|G -ÀÀÄPá3t1ã×9`>ó00. These seem like the types of questions that would come up frequently, I did use the search feature. B (blue) If you use a heat pump in the winter, you know the equipment works like an air conditioner in reverse, extracting heat from outdoor air to warm your home. R (red wire) This screen shows the activated lockout temperatures for both the compressor lockout and auxiliary heat lockout. I don't understand the lack of settings #530 and #680 -- if Bergy's link to Electric - Backup heat allowed to run with heat pump Heat pump only Backup heat lockout Heat pump with backup heat as needed * Compressor lockout Backup heat only No backup heat unless indoor temperature drops to selected Backup Heat Differential setting, or Backup Heat Upstage Timer expires. Ordinarily the electric heat strips or other backup source are installed integral to the heat pump air handler because they are used during the heat pump defrost cycle, to prevent the air handler from blowing so much cold air in the house while the heat pump runs in reverse to defrost the outdoor … Y (yellow) of hoursthat backup heat SHOULD operate isexpected to be relatively few. Thoughts? O (orange) I've read that I should probably invest in a better thermostat with an outdoor sensor so I can set my own lockout, but I don't want to break the heat pump if the temperature is too low. 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. Also, both the heat pump and the electric backup run on very short cycles. I have the compressor lockout on 25 degrees, and the auxillary heat lockout on 0 I dont understand why it is doing this. Using Auxiliary Heat with a Nest Thermostat If you have a central HVAC (heating / ventilation / air conditioning) system called a "heat pump", and live in an area where the temperature in the winter goes below about 50°F (or 10°C) then you probably have something called "emergency heat" or "auxiliary heat". At the same time, decreasing temperature means less heat in the air for a heat pump to pump indoors. %PDF-1.3 %âãÏÓ The last thing needed in thischain, though, isreliable lockout of auxiliary heat operation when outdoor temperature isrelatively mild. Heat Pump Control - Fossil Fuel Backup (Setup Function 0345): Option 0 (No Droop Control): If outdoor temp is above balance point (Function 0350), only the compressor operates. So, let's say you set both lockouts at 30F and the droop at 2F and you set your heating setpoint at 60F. Questions of a Do It Yourself nature should be Replaced fan and cap( old was good). G (green) Still does it. It has a turn-pot to set the cut-out temperature and simply interrupts the Aux control wire between stat and air handler. I'm in wetern NY with 2 stage heat (main-heat pump and aux-electric strips). Yes, the space is small. View our Privacy Policy here. If it gets colder outside than the set lockout temperature, your … Your aux heat should also come on when the outdoor unit goes into its defrost cycle. its all electric... 01-25-2013, 02:14 AM #5. ambergems. If you’re receiving many “Aux heat running alerts,” you may want to lower this setting—this will maximize the use of your heat pump while limiting the use your aux heat. I am lookingfor a Geothermal heat pump that heats only. The Aux heat is on. I have a Lennox HP26-036-12P (manufactured January of 2003) air source heat pump with a Lennox CB19-41 … The optimal heat pump temperature range is above 25-30 degrees Fahrenheit. When the backup heat droop is set to Comfort, the control algorithm will use backup heat as needed to maintain the setpoint within +/- … IF THE COMPRESSOR CANNOT REACH OR MAINTAIN TEMPERATURE SETTING, BOTH THE COMPRESSOR AND ELECTRIC BACKUP HEAT WILL OPERATE. And at one special temperature, the capacity of a heat pump equals the heating load in the house. Replaced defrost control. 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. See Installer Setup options (ISU 3120). It appears to not be turning on the aux heat or coils in the air handler. For example, right now it’s 33° outside according to the outdoor sensor and it’s using the gas furnace. Currently I have the ecobee wired as follows: The wiring to my old TCONT401AN21 thermostat was as follows: With electric backup heat you should not need to lock out backup heat. Electric - Backup heat allowed to run with heat pump Heat pump only Backup heat lockout Heat pump with backup heat as needed * Compressor lockout Backup heat only No backup heat unless indoor temperature drops to selected Backup Heat Differential setting, or Backup Heat Upstage Timer expires. We welcome your comments and After verifying compressor lockout in step 3, use the button under “Select” to scroll until ISU 356 is displayed, referred to as Outdoor Lockout Backup. It will run during defrost and if the heat pump can't keep up it will kick on when the indoor temp falls 2 degrees below the set point. All information is provided "AS IS." 1995-2018 MH Sub I, LLC dba Internet Brands. Moved into an existing home in Iowa over the summer and now that heating season has arrived I have some questions about the way that the system is operating. Hi all, I've posted a few threads about adding a heat pump to an existing propane furnace in Spokane. I have the backup heat lockout (gas furnace) set … Condenser fan starts and stops intermittently. I prefer it to go to propane automatically at the right time but if nothing else, could we set it up as two separate units, heat pump and propane furnace. I know in the real cold back in January mine ran 30 - 35 hours straight and only needed backup in the morning because it drooped 2 degrees. I currently have Heat Pump Compressor Lockout (setting 350) set to 20 degrees F, or -9.5C. 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". home improvement and repair website. 356 Outdoor Lockout Backup Heat -- = Off 5 °F to 65 °F (in 5 °F increments)-15.0 °C to 18.5 °C (in 2.5 °C or 3.0 °C increments) 365 Compressor Cycle Rate (Stage 1) 1 - 63 366 Compressor Cycle Rate (Stage 2) 1 - 63 370 Heating Cycle Rate (Stage 1) 1 - 12 Old fan burned out. Copyright© With its 3 heat settings operating from a 20-pound propane tank, you could keep your space reasonably warm on the lowest setting for up to 64 hours with just one tank in an emergency. That's pretty much useless for a geo heat pump. When I moved in, the heat pump compressor lockout (thermostat setting 0350) was set at 35 degrees. Yeah that is a problem, I wouldn't sell one to someone without telling them there will be cool and drafty times In the first house my wife and I built it had perimeter heat which is unheard of down here, I only wired in 5 kw of heat on a 5 ton system, there was a vent by my side of the bed, on cold mornings I could tell real close to how cold it was by hanging my hand in front of the vent Your heat pump should still put out some heat even when temps outside are below zero, not much though. Page 20: Normal Operation 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. Note that ISU 130, Outdoor Sensor, must be set to “1” as viewed in step 3c or strip heat lockout will not function : c. Backup heat mode will show up in software only if this wire is connected. In my recent article about the three types of System Installation Guide Basic and Advanced Temperature Control Options (ISU 3010) Basic Options: The Installer Setup displays basic temperature control options which include Backup Heat Differential, Backup Heat Upstage Timer and Outdoor Temperature Lockouts. Homeowners that have what has been called a hybrid heating system (a heat pump with a gas furnace back up) should operate only with the gas furnace for the winter if gas prices are low. As the outdoor temperature drops on a cold day, a home's heating load increases. I've been reading more about heat pump lockouts, and investigating some thermostats. @Joe, an outdoor lock-out (e.g. Of course, if your heat pump isn’t performing as described or if it needs servicing, you should call one of our professionals at Beach Air Heating & Cooling to assess the situation and correct it. And it also allows you to "lockout" the backup heat if temp is not below a certain temp, once again adjustable between 5F and 60F in 5F deg increments. Note: Normal programmable thermostats have one way to control AUX heat: the AUX lockout temperature. This powerful control can also control a backup heat source (boiler) while operating two (2) heat pumps. our backup heat is electric. This test could be used as the outside temperature goes below the 40f . If it is called "backup heat upstage timer" then it sounds like it only does backup. submitted to our "DoItYourself.com Community Forums". ... like yours we never lockout heat pump their is no need as we have very mild winters. When your heat pump uses its backup auxiliary heat to help it heat your home, you won’t notice. The outlet temperature with and without Aux heat depends on outdoor temp, wattage of electric heat strips and CFM setting. I have a vision pro tstat with temp sensor outside. 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. Mount TV on brick wall - drill into brick or mortar? The backup heat should be locked out at around 5o degrees meaning backup can not come on above 5o I am going to replace my heat/a/c system with a heat pump. option 1: droop control outdoor temp. TELL ME MORE . 35), the compressor is locked-out and ONLY the auxiliary will run when the outdoor … When the backup heat droop is set to Comfort, the control algorithm will use backup heat as needed to maintain the setpoint within +/- 1 F. When the backup heat droop is set to 2 F or higher and the backup heat upstage Normally we want to lock the heat pump out so that backup heat is primary heat source at around 20 to 25 degrees as it becomes inefficient due to lost capacity. DoItYourself.com®, founded in 1995, is the leading independent I would say the temperature that the heat pump switches to heat strips would take into account the price per kilowatt paid. ... Hello All, I am attempting to wire my new Ecobee Smart Si to my Trane 4TEC3F36B1000AA air handler and 4TWR3036A1000AA heat pump. Heating, Cooling, Air Conditioning, Ventilation and T-Stat Controls. displayed, referred to as Outdoor Lockout Backup. Turn all unnecessary users of power off for this test . How much KW heat strip for new 2.5 heat pump? I have messed with the outdoor lockout heat pump setting and the outdoor lockout back up heat settings. 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. Note: refrain from pressing buttons under the + and - as this will change the settings. C (blue) With electric backup heat you should not need to lock out backup heat. See Installer Setup options (ISU 3120). Why not lower the AUX heat point to 30F and see if it's still comfortable ... etc. With one price and one visit, maintain both for great system performance. problems contact webmaster@doityourself.com. Press Menu . It is therefore necessary to reset the supply water temperature based on the outdoor … I have a 5 month old Rheem Heat Pump with gas backup and I have a question about the compressor lockout temperature setting. The problem I am having is the thermostat is turning on the strip heat with the heat pump. Question about splicing vs long extension cord, SER cable vs Conduit - Indoor subpanel ampacity/temperature questions. What are the best or most cost effective settings for the compressor lockout (balance point) and heat pump aux lockout? In the winter, the refrigerant absorbs heat from the outside air and with the help of … Outdoor Temperature Reset In order to properly control a hot water heating system, the heat supplied to a building must equal the heat loss from the building. See Installer Setup options (ISU 3120). I have a gas furnace as my emergency heat. If set to a specific temperature (i.e. backup heat only outdoor temp. That temperature is called the balance point. Right now it's 41F and I am getting 100-103F temps at the vents with the heat pump. Page 21 T10 PRO SMART THERMOSTAT WITH REDLINK Table 5. Aux/Emergency Heat – Honeywell thermostats refer to Aux/Emergency heat as “backup heat” in its software. This screen shows the activated lockout temperatures for both the compressor lockout and auxiliary heat lockout. In my recent article about the three types of Natural gas prices have been very low in past years, caused by an abundance of gas available and mild fall temperatures. 356 Outdoor Lockout Backup Heat -- = Off 5 °F to 65 °F (in 5 °F increments) After verifying compressor lockout in step 4, scroll to Code 312 "Outdoor Lockout BACKUP HEAT" b. Verify temperature is set to 35 degrees or less to meet spec Heat pumps have the ability to use the indoor and outdoor unit as an evaporator or a condenser depending on the season, and whether the system is calling for heating or cooling. The backup heat source can be brought on with a few different options based on outdoor or tank temperatures. Website operating My system works extremely well except when my thermostat calls for backup heat (propane) the outside unit continues to run when the propane is burning. The heat loss is dependent on the outdoor temperature. You can connect an outdoor temp sensor, but the user-settable aux heat lock-out threshold can't be set lower than 40F. And at one special temperature, the capacity of a heat pump equals the heating load in the house. hŞbbd```b``–‘«@$ãÉòLò€I[ÉÄ"Y3Á"†`RL>›à"姀HÕW`ñŸ`] You might want to set the stat to em heat during freezing rain so ice build up on the hp fan blades doesn't destroy the unit, or if you notice the stat is staying two degrees or more below set point. Virtually all heat pump stats, no matter the age, have both an Emergency switch and an automatic Aux mode (although with older stats, the control logic that activates Aux may be poorly implemented). Note: Outdoor Temperature Lockouts only apply to Heat Pump applications. Any ideas? Rheem condenser fan starts and stops intermittently in heat mode. 1 External fossil fuel kit controls backup heat 0 Thermostat controls backup heat (outdoor sensor required) 18 Dual fuel heat pump control (EIM only) 1 Droop control** 0 No droop control** 2 Droop control with Aux Heat Lockout** 20 Droop temperature (dual fuel) (EIM only) 2 … This provides a/c in summer and heat in winter (with electrical backup heat).

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