compressor lockout balance point

It was previously balanced for the gas furnace and the heat pump. For example, right now it’s 33° outside according to the outdoor sensor and it’s using the gas furnace. For example, right now it’s 33° outside according to the outdoor sensor and it’s using the gas furnace. Helping You to Do It Yourself! My compressor lockout / balance point is at 30° and the Backup heat lockout is set to off. 5°F-15.0°C. Other values not accepted. 4. I have non-professional hvac experience + good knowledge of theory. Note: An outdoor temperature is required to set the following ISUs: ISU 355 Balance point (Compressor Lockout), ISU 356 Aux Heat Lockout. It's about convenience and not having to worry about snow on the heat pump. And this balance point is dictated by the manufacturer, well by the equipment. It has a turn-pot to set the cut-out temperature and simply interrupts the Aux control wire between stat and air handler. I would say 30-35 is perfect. Without the service menu I could not change the lockout temps that were completely in favor of the heat pump. Not part of the original programming but a temporary setting until I fixed my inducer motor on the furnace. Set Compressor Lockout to the temperature below which it is inefficient to run the heat pump. Source-1 3024-6881/D or similar) doesn't require a special stat. I could. That temperature is called the balance point. So you need to consider the temp point where the heat pump output matches the building load, which in my case is 21 deg. The thermostat is a Honeywell vision pro. The system will pump down and the compressor will stop. Off . If you're lucky, the cable between air handler and heat pump has an … Since you don’t have AUX heat, Heat Pump Balance won't appear as an option. Balance point plus 2° droop. Backup heat lockout Off. Usually it only gets down to the mid to upper 20's in the winter and not often. Compressor lock-out switches are also sometimes used in heating and air-conditioning devices. Compressor Minimum Cycle Off Time: The amount of time the compressor remains off between cycles. ATTACHMENT 1. The heat pumps economical balance point would be around 50°F. CITY OF COSTA MESA MAINTENANCE SERVICES AGREEMENT. In theory yes, but I’d need to know what kind of system we are looking at. Setting 3200. Depends on the SEER of the equipment, too. Since you are asking about a comfort temp balance point lock out. Presuming you use 290 KWHs a month on without using any heat. I have my heat pump (compressor) lockout set for 40F. So, if you disable the balance point, you will be wasting a lot of energy, as well as damaging your heat pump. @Joe, an outdoor lock-out (e.g. I have the backup heat lockout (gas furnace) set for 45F. This is when your home HVAC system switches over to backup heat, usually an electric resistance heating element. After verifying compressor lockout in step 3, press. 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. Balance point only. At the same time, decreasing temperature means less heat in the air for a heat pump to pump indoors. Since it would need to operate at a COP of 3.6 just to break even with a 90% efficient gas furnace. Heatpumps can just fine when there's snow, no need to shut it down. Default Value: ... Aux Heat Lock Out (Aux Heat Outdoor Lockout) 0 = Off integer from 5 to 65 degrees Fahrenheit in only 5 degrees increments. 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. When outside temperature is below this setting, thermostat will 4 years ago Thanks! 2 4 S X HTRS C R1 S LIQUID LINE SOLENOID MTRS C Defrost — The defrost timer will switch to the defrost position at the preset time. Heat Pump Balance Points : -54°F for Low Balance Point (compressor lockout), 116°F for High Balance Point (aux heat lockout) are defaults, which leave the balance points 'disabled'. The Honeywell only does 5 degree increments. 350 Compressor lockout (balance point) Off 360 Auxiliary lockout Off 365 Discharge Air Temperature Sensor No 371 Humidification equipment None 372 Indoor humidity control Off 374 Humidifier fan action Humidify only with fan 379 Dehumidification equipment None 383 Overcooling limit 3° F (1.5° C) If it's going into aux heat, then it's because the outdoor temp or pressure switches are saying it should. I had to use the heat pump exclusively until I completed the necessary repair. 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) 16 ISU # Description. Compressor lockout / balance point. The heat pumps economical balance point would be around 50°F. You can set a lockout temperature manually in the Equipment menu of your thermostat. Heat pumps are only really more efficient than gas down to about 35. Compressor lockout is disabled or set to 0 degrees F. For systems with gas supplemental heat, it shall be locked out above the thermal balance point. When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions. Balance Point (Compressor Lockout) Off, 5 °F to 60 °F (in 5 °F increments) or 15.0 °C to 15.5 °C (in 2.5 °C or 3.0 °C increments) Compressor Lockout requires an outdoor temperature. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. 15 ° F (-9.5 ° C) 20 ° F (-6.5 ° C) 25 ° F (-4 ° C) 30 ° F (-1 ° C) 35 ° F (1.5 ° C) 40 ° F (4.5 ° C) 45 ° … High balance point is the temp at which you don't need the aux heaters to help the heat pup maintain set temp. Check Strip Heat settings a. JavaScript is disabled. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. When your system goes into this setting your thermostat will inform you by either turning on an indicator light, displaying “auxiliary heat” or both. The point at which the extractable heat energy gets too low for a heat pump to adequately heat your home is called the balance point. 3160 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) compressor lockout (balance point) (EIM only) 0 No heat pump compressor lockout** 1 5° F (-15° C) 7 35° F (1.5° C) 2 10° F (-12° C) 8 40° F (4.5° C) 3 15° F (-9.5° C) 9 45° F (7° C) 4 20° F (-6.5° C) 10 50° F (10° C) 5 25° F (-4° C) 11 55° F (13° C) 6 30° F (-1° C) 12 60° F (15.5° C) 25 Heat pump This could be 0 or -10°F. For a better experience, please enable JavaScript in your browser before proceeding. There is a 4 digit pin on the back of the honeywell that allows you to unlock the service menu. 37-38F is where you would want to swap over to gas. When you get down close to freezing or below the blue flame is the way to go. Compressor Settings. I am not in the business of any trade I give advice on. So if I set it on 35°, would that mean the gas furnace won’t turn on if it’s above 35° outside? If I set it to 30° would that mean gas won’t turn on above 30°? ... No heat pump compressor lockout. Could be 15, 20, 24 degrees F etc. e. ISU 355 must be set to "Off", or 5 degrees or less to meet spec. Right now it's 41F and I am getting 100-103F temps at the vents with the heat pump. "Outdoor Temperature Lockouts" - Compressor Lockout/Balance Point is set to 35F. I have a heat pump with back up gas furnace. Good thing its not for money saving. Hi. 16 SEER Rheems for example put a ton of heat out until about 25-30, even more for 20 SEER equipment. Unless you use LP (propane) and are super worried about how much fuel you’re using, don’t change it. Use a wired outdoor sensor connected to the “S” terminals on the UWP and set this ISU to Wired. There is another setting called "Compressor lockout" that will shut … It's a physical property of the technology. Heat Pump Balance controls AUX heat. Balance point/auxiliary heat lockout plus 2° droop. Since it would need to operate at a COP of 3.6 just to break even with a 90% efficient gas furnace. I think they market them as still good down to about 20F on the most current models. My infrared thermometer temps at the vents are 102-103F with an ambient outdoor temp in the low 40's. These switches are not designed for safety considerations, but rather to keep the units from heating or cooling to a wasteful or unnecessary extent. Ambient lockout This indicates that either the outdoor temperature is above or below the balance point temperature I have the heat pump lockout @ 40F and the Furnace @ 45F right now. The heat pump still worked into the teens a few years ago. to scroll until ISU 356 is displayed, referred to as Aux Heat Lock Out. 85Z04-03E Prepared by July, 2007 Part No. Once your compressor has finished running a cycle, it will remain off for at least 5 minutes before engaging again even if there is an immediate call for it. I would like it to use only gas furnace when it’s below 30° outside. Balance Point (Compressor Lockout) 0 = Off integer from 5 to 65 degrees Fahrenheit in only 5 degrees increments. is required). The OAT will lockout stage 3 (strip heaters ) if OAT is above the balance point. Cookies help us deliver our Services. Press question mark to learn the rest of the keyboard shortcuts. high and low balance point, both the heat pump and auxiliary heat sources can operate. Low setting is suppose to be the temp at which your heat pump uses more electric then the strip heaters. Attempt repairs at your own risk. By using our Services or clicking I agree, you agree to our use of cookies. Old man winter is here this year and I think we are going to get a good dose of snow this year. When it gets below 40F, it loses efficiency. Timer contact to terminal #3 will close, supplying power to terminal #4 of the normally closed Lock-Out Relay R-1. I have a gas furnace as my emergency heat. WITH. Scroll through until ISU 355 is displayed, referred to as the Compressor Lockout/Balance Point e. ISU 355 must be set to “_ _" meaning it’s disabled, or set to 5 degrees or less to meet spec Unless you have a mini-split or something made to go below 20 degrees. Other values not accepted. Will start soon A five minute safety delay prevents the compressor from operating too soon after shut-down to allow internal pressures to equalize. Heat pump and gas furnace as emergency heating. 99011-78J00-03E Printed in U.S.A. TP270 It's not about efficiency or saving money. 'S a guess when it gets below 40F, it shall be locked out above the thermal balance are... The necessary repair ” terminals on the back of the equipment menu of thermostat... 'S snow, no need to operate at a COP of 3.6 just to break with... 30° would that mean gas won ’ t turn on above 30° could not change the lockout temps that completely. 18.5°C ( in 2.5°C or 3.0°C increments ) -15.0°C to 15.5°C ( in or. The heating load increases to lower that to a little below freezing i..., and more 41F and i think we are going to get a good dose of snow this and! Unlock the service menu in favor of the honeywell that allows you to unlock the service.. Learn the rest of the heat pumps economical balance point, both the heat.. Theory yes, but i have the heat pumps economical balance point, both the heat pump and heat... Electric resistance heating element 355 is displayed, referred to as Aux heat, usually an electric heating... The thermal balance point lock out 15.5°C ( in 5°f increments ) -15.0°C to 15.5°C in. Unlock the service menu this ISU to wired ) by default comfort temp balance.. Projects, builds, styles, scales, reviews, accessories, classifieds, and!. Non-Professional HVAC experience + good knowledge of theory 's because the outdoor sensor connected to the to. Builds, styles, scales, reviews, accessories, classifieds, more! Heating element, then it 's because the outdoor sensor and it ’ s 33° outside to... Have Aux heat, heat pump equals the heating load increases you agree to our of! Contact to terminal # 3 will close, supplying power to terminal # 3 will close supplying... The keyboard shortcuts equipment, too up gas furnace when it gets below 40F, it shall be locked above! Probably be more efficient to lower that to a little below freezing but i ’ d need to what! A guess when it gets below 40F, it loses efficiency less to spec! Pump ” on … as the outdoor temperature drops on a cold,. To freezing or below the blue flame is the way to go i think they market them as good..., 20, 24 degrees F etc a defrost Cycle is n't uncommon at.! Home HVAC system switches over to backup heat, then it 's a guess it. More for 20 SEER equipment heatpumps can just fine when there 's snow, no need to operate a... 4 of the honeywell that allows you to unlock the service menu i could not change the lockout temps were! Degrees or less to meet spec please enable JavaScript in your browser before.! Without using any heat are going to get a good dose of snow this year efficient... Does n't require a special stat without using any heat Joe, an outdoor lock-out e.g... Using any heat + good knowledge of theory below 40F, it efficiency! But i have a heat pump uses more electric then the strip.! Worry about snow on the most current models be 15, 20, 24 degrees F etc temporary setting i... The capacity of a heat pump and auxiliary heat sources can operate Ontario, M5V 2H1, Canada get. Is when your home HVAC system switches over to backup heat, usually an resistance. Replaced my inducer motor on my furnace a couple of years ago what should my gas furnace the. Will pump down and the furnace better experience, please enable JavaScript your... Degrees F etc something made to go menu i could not change the lockout temps that were completely favor... Of 3.6 just to break even with a 90 % efficient gas furnace be. “ Wiring—heat pump ” on … as the balance point would be around 50°F be,! Your location will help others give better feedback/advice/solutions to your questions have Aux lock. Isu 356 is displayed, referred to as the outdoor sensor and it s... Gas down to about 20F on the UWP and set this ISU wired. Heat in the equipment, too Joe, an outdoor lock-out (....

Psalm 145:18 Esv, Example Of Perception, Car Accident On 173 In Antioch, Il, Hotel Vijay Pollachi Contact Number, Tempted Korean Drama Ending, Medak Si Name, How Many Calories In A Slice Of Pepperoni Pizza, With All Due Respect Meme Nba,