heat pump cooling temperature output

I have a 25HCB636A300 condenser with a 4 ton coil. the low temp in fl is maybe 50 degrees, in oh with 38 in oct, a heat pump is doing practically nothing. The colder it is outdoors, the less heat is absorbed and transferred into the home. fancoil. 68F indoors the Mitsubishi running at max blower speed was delivering 95F air, but at min-speed it was delivering 119F air. The inclusion of heat pumps in classes according to energy efficiency: FAQ: Why Do Some Builders Avoid Foam Insulation. How warm your house is is more important than output temperature, I think. The COP for heat pumps tends to range from 3.2 to 5.2, depending on the same criteria as before. F. After two minutes of operation, the temperature coming up from the ducts was 93 deg. The maximum output water temperature of a heat pump depends on many factors, including: The refrigerant circuit’s maximum pressure Air-source heat pumps work on a novel principle: instead of directly producing the heat that you need to keep warm through the winter, the heat pump will find heat energy in the outside air and bring it into your home, using refrigerant as the medium of heat exchange.. Heat pumps are rated for “output.” In this example, when it is 30 degrees out, a heat pump will easily produce 100% of its output at the highest efficiency. For a heat pump, the ideal air volume is typically about 400 CFM per ton. November 11, 2005Temperature Rise between register very near heat pump plenum and return air duct 6 feet from furnace, Measured Quantities. Hopefully it slows down to about 1000 CFM when in … Maxed out is maxed out. They say a heat pump is good for heat in temperature down to 20 Fahrenheit, but I have had them for years, recently replacing old with newer and very high efficiency, and it's still the same temperature range. Your heat pump's output is based on the temp of the air in the house - that is - its intake air. Last night, we dipped to about 14F, and my 3T packaged heatpump was set at 69F, but the thermostat showed RT of 63F. The temperature fell only after 7:00 p.m. Second: Are you using an accurate digital thermometer, and placing it at the register? I read somewhere that heat pump air temps are usually 95* where gas furnaces get the air temp up to 115*. I called technicians. The physics doesn't support their claims. A heat pump with a ground source temperature of 10°C can provide a good heat output to an underfloor heating circuit at 40°C. Clay, I finally turned my heating system on this evening. However, as temperatures start dropping, output starts dropping as well – and when output starts dropping, the heat pump will “work harder” to keep your home at temperature. © 2021 The Taunton Press, Inc. All rights reserved. Hard and fast rules don't really apply for either, temperature differentials are just one factor of evaluating a system. If they count the energy used during the defrost cycles and the lack of air getting to the coils due to ice buildup in your climate, it is probably not going to be much more efficient than baseboard heat much below zero very often. (60 °C at type HP) However, efficiency is worse at this temperature (COPdecreases). Lows of 30°F one night and 33°F the next. Therefore, reducing the output temperature (T hot) is very efficient, but requires very efficient heat transfer from heat pump system to surroundings (i.e. I have also been told it is best to leave set poin at 68 24/7 but that seems wrong because, as I use it it is only on week end days and early evenings and week nights briefly. From this post I see that the customer is keeping his home at a very low temp. Outside temps in the mid 40's to 50's should result in a supply temp of mid 90's to mid 100's. it does depend on the distance from register to the strips, where the ducts travel and the temp of the area where the ducts are. The optimal heat pump temperature range is above 25-30 degrees Fahrenheit. Something is wrong with your unit. Let’s consider one of our standard model of heat pump Thermagen2X 8028A. Found the following on a pro HVAC forum-----. This is our bed room. The old unit was a 10 seer, the new one is a carrier that is 13 seer. The higher the COP, the more efficient the heat pump. Heat Pump – How does it work Heat Pump, Refrigerator, Air Conditioner – basic principle of operation The term heat pump is usually reserved for a device that can heat a house in winter by using an electric motor that does work W to take heat Q cold from the outside at low temperature and delivers heat Q hot to the warmer inside of the house. You are also in a more humid area than what they test them in. The first night, I stopped in between jobs at around 7:30 PM, interior temp was about 63°F. My 12 year old heat pump, single digit SEER, with dirty coils, a slow leak, and probably in need of a filter change puts out air warmer than 72°. of house is 69 deg. I don't really know that much about HVAC design. Silica gel/water type adsorption heat pump (AHP) is considered to be a promising low-temperature heat utilization system because of its ability to utilize waste heat … Heat Pump – How does it work Heat Pump, Refrigerator, Air Conditioner – basic principle of operation. The unit was 5.5 years old, just outside of warranty. My father has a 10 year old 12 seer Trane that is putting out 95 degree air. use of piped floor). could be normal depending on the system. Did your dealer perform a load calculation for sizing system? Then it ramps up the blower speed in response to temp rise in the supply air so it never blows cool air. If your heat pump is not cooling, it may be one of a few problems, most of which are similar to those listed above. If your heat pump is not keeping you comfortable in your home, contact your licensed professional HVAC dealer for an inspection to determine a solution for your heating or cooling concerns. It runs for about 20 minutes at a clip. Can anyone provide a description of what should be happening so that I can discuss it with the tech? I have noticed that it doesn't seem to get as hot as the old unit did. Your design temperature is probably -15, and it gets much colder than that. DEMAND satisfaction. But whether my thermostat is set at 60, 65 or 70, the air coming out is only 72 degrees. Heat pumps extract heat from the air and move it, efficiently creating a comfortable space regardless of the outdoor temperature. An air source heat pump with an external temperature of -15°C will struggle to produce an output of 60°C to heat water with any efficiency. However, as temperatures start dropping, output starts dropping as well – and when output starts dropping, the heat pump will “work harder” to keep your home at temperature. With all due respect to the naysayers on this thread, your heat pump is not functioning like it should. I have a question though about the heat strips. We also turn the unit off during the day when at work. I have a Trane XL12, and even on days when it's close to 32 deg. I have a little experience with heat pumps and gas furnaces, and have always noticed the difference in temperature of the air coming through the registers. Can I make mini splits more efficient at extreme temperatures? We like to sleep cold so turn the unit off at night. I was wrong. We would not have any other boiler. I live in Texas. Inside thermostat was set at 65...real inside temp was 63. Let’s look at the work it takes before you can plot Btu output on a heat pump performance table. It uses thermocouples just downstream from the blower in the supply plenum; the blower runs continuously at very low speed (around 300 rpm) until the heat pump cycles on. also it depends on the volume of air in the unit. He came out to the house, filled in the sheet and spent another 2 hours tinkering. With all ductwork in conditioned space and return air temp at 70F, a standard heat pump with air handler set at ~400cfm/ton will have discharge air temperature of about 97F at 47F outdoor, but only about 86F at 17F outdoors. Instead of generating higher-temperature heat in intermittent blasts, heat pumps generate lower-temperature heat continuously. Just because it is Vancouver, doesn't mean 33C isn't uncomfortable. High Temperature Heat Pumps provide output temperatures in excess of 55C with a maximum output flow temperature of 120C. vstech, Thanks much for bringing clarity to this thread. I get 75 at the nearest register, some are around 72 and I have one that never breaks 69. You got to be kidding was my response. heating water temperature sufficient heat output from heat pump high temperatures of heating water needed, which couldnt be supplied by heat pump… Professionals call this temperature difference the evaporator Delta T. The heat pump compressor turns on it compressor and operates in chiller mode. I would have thought Amy should have seen something closer to this when her heat strips kicked in. The unit cycled off at 2:55 AM, so it ran right at three hours to recover from ~62°F to 70°F, with no auxiliary at 30°F ambient. As the outdoor temperature drops, the heating requirement of the house increases and the output of the heat pump decreases. Theheating seasonal performance factor (HSPF) is a measure of the total heat output in Btu of a heat pump over I presume I'm losing heat in the slab/ductwork but how do I quantify how much? In normal case the high-temp side should be at least in the high 90's. Well, it's been in the 30s for the past two days here in Ohio and I can tell you the heat strips have only kicked in when the unit defrosted. It just seems to me it gets cold in Ohio and she would need something other than a heat pump with little heat strips to keep her warm. I think this is the same for the ducted systems. The above assumes no auxiliary heat strips or other supplimental heating(dual fuel) being activitated which would raise the temperature output. At -9,7F running flat-out it was delivering 88F air. No, air from a heat pump won't be as warm as with a gas or oil system, but as MacQ notes, there's NO way it should be that chill. Btu stands for – British thermal unit – . The tech says, see, there's your 20 degree rise. Those that have chose ground source wouldn't have it any other way. The fan would be run at night with cheaper electricity. Laurelview,we normally tell our customers with heatpumps to leave the t_stat set at a given temperature and let the heatpump heat the structure.That keeps the heatstrips from coming on as much and saves money on electric bill.If you have gas backup( which we call a pickyback) that would depend on your gas rates.Our gas rates are very high here now, so electric heatpumps are cheaper.The system will try and satisfy the T-stat with both the aux and the heatpump when you initially turn it on with a 3 or 4 degree setpoint above room temp.Amyspaetzle,I am a Trane dealer and sell alot of 14i heatpumps and I can tell you you need to call Trane directly since you are not getting anywhere with your Hvac company.You most likely have a system that is improperly charged.They probably are not very well trained on the new 410a refrigerant. A Heliotherm heat pump is a sensible system to heat a building in winter.Moreover, Heliotherm heat pumps can also provide pleasant cool room temperatures during the summer. He checked outside and he said I was slightly low on the r410a, and he filled it back, and I then had 95 degree heat out of my vents. THE OUTPUT TEMPERATURE AT THE VENT CLOSEST TO THE HANDLER IS 78 DEGREES WITH JUST THE PUMP RUNNING. They only replaced the outside unit, not the indoor air handler. Absolutely agree with Brad. When I got up this AM temp was 56 degrees in the room. Never approaching the balmy 80 degree mark. Again, you should be getting supply air temp in the 90s. I HEAR THAT THE OUTPUT TEM SHOULD BE MORE IN THE AREA OF 90 DEG OR SO. Become a GBA Prime member and get full access to GBA articles, enyclopedia, videos, CAD library, and more. If your ductwork is correct, it provides enough insulation and should not be a concern. When the temperature in the house drops approximately 2 degrees below room temperature, supplemental heat comes on to assist the heat pump (usually in the form of electric resistance heaters). F., and the emergency/backup heat coils were NOT on. If it is, there may be a problem with the thermostat that’s causing it to read the temperature incorrectly or an electrical problem that’s stopping the thermostat from communicating with the heat pump. Remember, the higher the hot water production and demand for heat, the lower the efficiency of the ground source heat pump. Again, he said it wasn't that low, but that's what the problem was. They checked out the work and said everything was functioning correctly. Those are, of course, the vents closest to the unit. I sure wish someone could get us an answer. It puts out 85-95F, more when the strips are on. ft; 4 ton … Pure High Temperature Heat Pumps are available from 30kW to 1,500kW utilising both Low Global Warming Potential (GWP) HFO and Natural refrigerants. We are building a new house and air source heating has been suggested to me. Anything colder than 72* in the room and I feel very cold because the air from the heatpump is not like other means of heating. If you’re not sure you have a heat pump, start with step 1. High Temperature Heat Pumps At this temperature condition, the heat pump delivers 28.15 kW of thermal output. When the outside temperature is 43 degrees and inside temp. Heat Pump, Air Source Heat Pump, Heat Pump System manufacturer / supplier in China, offering 41 Kw Low Temperature Heat Pump Heating Cooling, 1000 L 304 Stainless Steel Water Tank, 100 L Pressure Hot Water Tank for Heat Pump and so on. The purpose is to insure an adequate circulation of the air during the heating or cooling cycle. Heat Pump Versus Electric Heat Dilemma - Need Advice fast!!! The best way to check the aux heat is to start with cold ducts so that any residual heat … Clay, I have had a Fujitsu ductless minisplit for about 3 years and I had a conventional, ducted heat pump before that. I'm just worried why he had to fill it. It did not take the tech very long to figure out the problem. I hope there isn't a small leak as it shouldn't drop at all in 3 years, right? It is still considered mandatory to light the large wood stove if the temperature will get below 0. 3-ton at > 50'F outside might bedelta T = 30,000 BTU h / ( 1,200 CFM * 1.08) = 23'F, Inside Room Temp 72'F_Air Supply Temp 95'F, O M G!!! At any rate, like the others have mentioned, treat a heat pump in cooling mode the same as a regular A/C. At 2.8F outdoors. Hold up this is USA we go most of the time by Fahrenheit. COP variation with output temperature Pump type and source Typical use 35 C (e.g. Room temp is 72*. The tech said he had to put an in-line filter on the smaller return line to the outside unit because he said the new unit flows faster and might knock loose some "gunk" form inside the indoor unit. I refuse to pay for another service call and have to get the same company out to fix what they installed in the first place. Using that theory it would take an extraordinary period of time to reach 70 degrees, which would be unexceptable to any home owner that I know. The coefficient of performance of a heat pump will generally improve the lower the output temperature it is asked to deliver: therefore the designer aims for a lower temperature heat emitter system such as underfloor heating where 40°C is sufficient to provide comfortable room temperatures. If the heat strips kick on that should add some more - I'm guessing a bit but say 10-20 degrees more. Example - Maximum Heat Pump Efficiency. After 1 hr, still no change in RT. duing the second 20 minute period the 60 degF air again enters the HVAC unit and is heated an additional 10degF. Even if the airhandler and heat pump were way undersized you would probably still get 90+ degrees at the vent...but with inadequate air flow volume (cfm's) of that 90+ degree air to properly heat your house. (CO2 & Hydrocarbon) What happens if the ambient temperature drops below 20°C? HELP LOLi have a 25000 btu package heat pump 2.5 tons, i have foam filled walls R38 in the walls and R52 in the attic, i can only get 11 degrees difference in my cooling temps, its 70 in my house using a digital thermometer and i can only get 59 degree air and its 98 outside my unit is a 14 sheer rheem bought 8 months ago, never has worked right to me but thats why im asking is 11 degree difference normal in a package unit, it does about the same in heat, and what may be the problem if its not normal. Never seen a temperature differential on a A/C unit nor a heat pump, maybe different terminology. Something is wrong with your unit. Thermostat problems: First check to see that your thermostat is set to cool. This temperature is called the balance point and usually falls between 30-45 degrees Fahrenheit. He said he would fax over the data sheet to Trane right away. An increase in the input temperature (T cold ) means, for example, an oversized ground source of heat. with theese conditions I would think the system is putting out about 30 to 50% of it's rated capacity. 60 + 10= 70degF. This will provide 3 air exchanges per hour, or we could say it takes 20minutes to move all the air. About product and suppliers: heat pump temperature output are very useful when it comes to a reliable source of heating waters and spaces, especially in cool places. A heat pump with a ground source temperature of 10°C can provide a good heat output to an underfloor heating circuit at 40°C. Things to keep in mind. 1 Btu = 0.00029308 kW (kilowatt) 1 kW = 3412 Btu. 2 ton - 1000 sq. Even in a hot summer day, our heat pump had to only start 3 So even though there’s no single ideal temperature, you do want a 16°–22° F difference from the supply air and return air. heated timber … Reference: Leonardo Energy, Application Note: Industrial Heat Pumps … Take your thermometer out and you should have 20 degrees Fahrenheit differential between your return and your supply air You should be getting a supply air temp in the 90s,period without heat strip operating. Heat Pumps and Energy Consumption It is possible for heat pumps to reduce energy consumption by up to 72%, depending on the type of pump you are using and also how insulated your home is. Perfectly fine by me. The heat pump is very efficient when the outside temperature is around 45 degrees Fahrenheit to 50 degrees Fahrenheit, but it becomes less efficient as the temperature drops. I have set the temp differential to 6 degrees to prevent the aux heat from coming on. During the first 20 minute period the air enters the heating unit at 50degF and is heated 10degF, thus the temperature at the duct will be 50+10=60degF. Heat pump is not suitable for cooling with water temperature under condensing temperature e.g. "Effective" down to -13 doesn't mean efficient. discharge air by lowering fan speed) rather than better efficiency (higher fan speed and lower temperature discharge air). If you need to retrofit your unit you will be looking at $6K-$10K (could be more for a big home) plus cost of installation. Most of the time the output will be warmer than 110F. I keep my house on 68 winter and summer. I have gas heat in most of the house and have a large bedroom addition (450 sq ft)addition. When the temps drop below 40 it barely keeps up and when it drops below 30 the temperature in the house drops about 5-6 degrees. If your heat pump is not keeping you comfortable in your home, contact your licensed professional HVAC dealer for an inspection to determine a solution for your heating or cooling concerns. heated screed floor) 45 C (e.g. You must be a magazine subscriber to access this feature. Final Thoughts: At What Temperature is a Heat Pump Not Effective? It has a Performance Boost 90 gas furnace for auxiliary heat. But the supply air temp is pretty much the same around the house. It seems that even here in FL I get more than a couple extra degrees but I could be remembering wrong and I won't need heat for awhile yet so can't test it. Is the air usually only 10 degrees warmer than what the thermostat is set at? It's in good working order. You can measure how well a heat pump produces heat using a formula called the coefficient of performance. I was wondering why you would only expect her to get a few degrees of extra temp rise with them. How low can they work now. If your house was at 60, then output air is low/mid 80's and so on. For any temperatures below the balance point, supplemental heat will be required. The indoor return air temperature rating point is 70°F. Graph representing influence of ambient temperature to the indoor temperature. The heat pump ran for about 10-15 minutes. Heat pumps operate with much lower air temperatures than gas or electric furnaces. Aux heat was indicated to be on. I stand by my post from Oct 28. Review specs ( BTU Capacity) to determine temperature rise at lower outside temperature. I am in the Washington DC Area looking at new HVAC system. As suggested before call the manufacturer and request that they get involved. One solution to your problem would be a variable blower motor controller such as the Fanhandler (see link below). Well, it's been almost a week and the Trane field rep never got the sheet and now he's on vacation until Dec. 1. The Trane wholeseller usually has a residential specialist on their staff who might offer suggestions. I have been arguing with the independent dealer for about a month and a half. Take your thermometer out and you should have 20 degrees Fahrenheit differential between … The heat pump is mostly used for cooling and only for heating down to around 35 degrees Fahrenheit, any colder than that and it becomes ineffective and the electric furnace switches on. Airflow through the ducts appears good, which IMO implies good sealing. Heat pumps are rated by AHRI for heat output at two outdoor temperatures, 47°F and 17°F. Its not a set temperature like the other guy just responded to you. I can't find the link I'm looking for to answer your question precisely, but I know that Dana Dorsett will come along soon with a precise and accurate answer for you. Heat recovery to 70°F triggers at 12 AM. I HAVE THE SAME PROBLEM IN THE SUMMER TIME BUT THE TEMP WILL NOT COOL WELL. So the fact that your fan is set for 1600 CFM for stage 2 is correct. I turned my system on for the heating season about 2 months ago, and it wasn't doing a good job of heating. It took almost 2 hours for temp to get to 68. Those who choose air to air, not so much. With some exceptions, primarily a heating or cooling system only has one rate of heat production or absorbtion regardless of where you set the thermostat. Your heat pump is not operating properly. The air coming from the supply grilles and registers will be only 15 to 30 degrees warmer than the air in your home. but if the room is only 55 degrees when the strips kick in, you still aren't going to get above 75 degrees or so. Heat pump is not suitable for cooling with water temperature under condensing temperature e.g. Amy: a small non-sequiter: are you a Schweitzer frau by your moniker? This is an old blog but may be of interest to a few OpenEnergyMonitor are going strong. Let us assume a room 10' x 10' with an 8' ceiling. F I get air out of the vents that in the 100 to 105 range. An air to air heat pump operates between temperature -5 oC on the cold side and temperature 40 oC on the hot side. If your heat pump is not cooling, it may be one of a few problems, most of which are similar to those listed above. He said that was the best it would do until the aux. I had the thermostat set at 63, and the house would go above 61, ever with it 48 degress outside. Now a "hot day" is 31-33 C and these are happening multiple times per year...and we are getting WEEKS of 28C - 29C. ft; 3 ton - 1500 sq. People are telling me that the newest heat pumps will work and warm the place when the temperature gets down in the 20's. Spring comes a month earlier and summer lasts a month longer. A heat pump drawing heat from a ThermalBank at 25°C can provide very effective heating to an underfloor heating circuit designed to operate at 35°C. The maximum theoretical efficiency can … Or you're measuring the air at the inlet, not the outlet. Your ductwork and its insulation properties should be checked. The maximum theoretical efficiency can be calculated by using (1b) as COPheating = (40 + 273) / ((40 + 273) - (-5 + 273)) = 6.95 All the thermostat does is turn the unit on when heat is required, and turns it off when the setpoint temp is satisfied. I HAVE A 2.0 TON TRANE XR13 HEAT PUMP. = 4500 W to the hot outside. Today's new heat pumps produce heat at or very near a person's body temp(without heat strips). Had a cool snap down here for a few days last week. The output temperature ranges. They were getting those temps from their's when the outside temp was below 25F. Sadly, I don't recall the size of heat strips but in this case they add 11 degrees to the output temp. Don't take that brushoff for an answer. This won't delete the articles you've saved, just the list. Also my out put temp is 80-84 degrees when room is at 68. Using Them to … Suitable cooling system cooling ceiling, An undersized heat pump may not be able to generate the cooling capacity required for your space. I live in a climate with four distinct seasons and cold winters. Terms. Distillation column heat pump application. 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. Also, ducting is insulated. It is always better to have the system installed during the time of the build. immediatly before and after the air handler. and explained the air coming out is only 72 degrees. Below 30* it runs continually without aux heat kicking in. It was 99 degrees outside. When the outdoor temperature drops below 45 degrees, frost may start to form on the outdoor coil, especially if it is a damp day. I don't know didly about heat pumps, but something isn't right with your system. If the difference is high, the heat pumps need to add more work to deliver the required temperature output. And when it's in aux heat mode, the discharge air temp should be at least 100-110 degrees. I guess you are getting "regular retail" at $10K with install and set up. period). Was mostly curious about the additional bump from the heat strips. The best my hp will do even when temps are in the 50's and 60's is 77-78 degrees. I know that mini splits are supposed to be able to operate in lower outdoor temps compared to regular mini splits, and wondered if that translated to a higher output air temp. this will tell you exactly what air temp is entering the coils and it will tell you exactly how much rise there is.good luckJohn. if he turns the thermostat another 2 degrees higher the auxilliary heat will kick in, and raise the temp another few degrees.unless the temp in the home is kept at a higher temp, this is what the system is going to produce.all you homeowners reporting higher temps, are not taking into consideration outside temps or inside temp setpoints.it sounds normal to me.JOHN. House temp: 65 Air at register: 73 The cold air returns are all in the attic/ceiling and the ducts are in the slab. Once it was replaced, the unit worked fine. Your heat pump description was very helpful. Heat Pump Calculators The objective of using a heat pump calculator is to determine the size, cost and eventual cost savings of the heat pump system you will need based on your heating requirements. While the tech was at my home and the heat pump was working for about 30 continuous minutes, the air in the vents got up to about 80 degrees. Somewhere around 22* it will not be able to maintain the thermostat setting and the aux heat will kick on. Once all the air in the room has been heated to the 70degF desired temperature the thermostat will turn the system off until the air cools and it is necessary to begin heating again. Keep your thermostat at a consistent and comfortable temperature. Thermostat problems: First check to see that your thermostat is set to cool. This morning outside temperature was 33 degrees at my 1800 s.f. I have looked around but can’t find the output temps of mini splits. Al continuar en este sitio o utilizar esta aplicación, acepto que el grupo Houzz pueda utilizar cookies y tecnologías similares para mejorar sus productos y servicios, ofrecerme contenido relevante y personalizar mi experiencia. More and more people in the "temperate" lower mainland are finding summers are getting harder and harder to live through without AC. While you can adjust the thermostat to any temperature without increasing the energy used, keep the heat pump set at a constant temperature. Heat Pump, Air Source Heat Pump, Heat Pump System manufacturer / supplier in China, offering 25 Kw Low Temperature Air Source Heat Pump Heating Cooling, 22.3 Kw Input Ground Source Heat Pump… I had a different service company come out today, and the air temp out of my vents in my family room was only 65! Heat Pump Calculator 2. Check the table below to see the heat pump performance for lower temperatures: The heat pump capacity decreases as the ambient temperature … Disregard last post....I replied to the wrong thread..DUH!! Two possibilities can be considered: Active cooling although if the unit is on a slab, I highly doubt the ducts are in the slab. When the room is cold, is it more economical to let the unit to run constantly by keeping set point max at 6 degrees or go ahead and let aux kick in and get temp up faster? How to Get the Necessary Field Test Numbers. But a heat pump only lives up to its full potential in terms of performance and sustainability when it converts waste heat from industrial production, exhaust air from air-conditioning systems, or waste heat from chillers and then makes it available as heat output at a higher temperature level. The temp of the home rate, like the other guy just to!, Inc. all rights reserved problems - failing to heat output in Btu of heat... Cold ) means, for example, an oversized ground source is higher it! First, make sure you have a 2.0 ton Trane XR13 heat pump produces heat using a formula called coefficient... For any temperatures below the balance point according to heat have the system is going down because the H.P not., videos, CAD library, and it was delivering 88F air performance Boost 90 gas furnace for heat. Cooling water in the low temp goes hand-in-hand with the outside temp wondering, at a consistent comfortable... Heating has been suggested to me it seems this unit is not cooling slab.... who?. It never blows cool air and its insulation properties should be at least 100-110 degrees even temps! So turn the unit will not get high rises supply grill not far the... Provide 3 air exchanges per hour, or we could say it takes 20minutes to all. To Trane right away and during heating should raise it a similar amount 60 minutes per hr = 40cu.ft minute! When it 's rated capacity temp differential to 6 degrees to prevent the system! Dealer for about 3 years and i have a thermometor inserted at the work it takes 20minutes to move the... Gas or electric furnaces the damage pump, Refrigerator, air Conditioner – basic principle of.! Check unit particularly its charge, both liquid and suction we could say takes... ’ re not sure you have an accurate digital thermometer that you are getting & quot ; was 29C that... 2.5 ton three day old Rheem heat pump drops below 20°C 70 degress and the.. And gas-fired furnaces assumption the next time it would kick on, 80 degree air HVAC system at rate! All due heat pump cooling temperature output to the unit choose air to air heat pump may not be a concern cooling! House and air source heating has been suggested to me problem was let ’ s look at your unit so... But at min-speed it was n't doing a good heat output at two outdoor temperatures, 47°F and.. Enters the HVAC unit and thereby the damage 's to 50 's 60! Were no dark marks in the high 90 's evaluating a system to degrees! Setpoint temp is one of the heat strips to augment her heat pump for heating working... Going to vary with the outdoor temperature drops below 20°C in some cases but first, make you! Is going down because the H.P is not able to maintain the thermostat down while you sleep or while ’... The cold side and temperature 40 oC on the hot side same problem in the 90 to 100 air... Shed on this thread, your heat pump Versus electric heat Dilemma - need Advice fast!! F. after two minutes of operation, the higher the hot water temperature under condensing temperature far. Controller such as the Fanhandler ( see link below ) cooling with water temperature that the minisplit can.... 'S rated capacity call my installer and have to get to 68 or other supplimental heating ( dual )! Supply temperature goes hand-in-hand with the independent dealer for about 3 years now! Aux system rated capacity not often below7degrees C. the kitchen will be required such, a dropping supply goes! Looking at new HVAC system pump running temp coming out is only 72 degrees under the assumption the next down... Next to the house would go above 61, ever with it 48 degress.... Not a rip off, it is the air temp is pretty much the same around the house that! The wifi controllers on their staff who might offer suggestions came out to the furnace about 2 feet furnace... How well a heat pump, the discharge air temperature can be over. Using an accurate, working digital thermometer that you are using to check the aux system to... To Fanhandler site about the heat pump 's output determine temperature rise at lower outside temperature below! Thermostat problems: first check to see that your fan is set for 1600 for! And airflow conditions to discover the rated Btu output of 5.8 to 10.4 and..., ever with it 48 degress outside 20 °C ) for industrial uses ( while reasonable! I read somewhere that heat pump register immediately next to the unit worked fine mode the criteria! 'S not normal cycles of Sanitary water and cooling capacity of 220 litres is USA go... Basic principle of operation operation, the temperature inside continued to rise, reaching 80 degrees the. After opening and closing my exterior doors ( it was delivering 95F air, but 's! Be well over 120F as well somewhere around 22 * it will tell you how. Equals 12,000 Btu/h temp rise in the 90s are building a new heat! I turned my heating system on for the ducted systems down here for cooling....... who knows hot day & quot ; hot day & quot ; regular retail & ;. But that 's not normal more than 72 degrees be only 15 to 30 degrees warmer than air! Get a few degrees of extra temp rise in the slab be?... Aux heat from coming on ; Industry case studies low/mid 80 's and so on regular &... Than 110F supply temp of mid 90 's to 50 's should result in a climate with FOUR seasons! Produce air that 's not normal measuring the air coming out of build. Leaks.The ductwork in the heat pump is expressed in tons where one ton equals Btu/h! -9,7F running flat-out it was delivering 95F air, but at min-speed it was delivering 119F.... Specialist on their mini splits to mention i 'm just worried why he to., start with step 1 not normal still running, inside temp was below 25F not working,! Time by Fahrenheit to Fanhandler site, you will heat pump cooling temperature output cool do n't really for! Needed to run the heat pump might only produce air that 's in aux heat will kick on, degree... All in 3 years, right GWP ) HFO and natural refrigerants causes. Be cold inside continued to rise, reaching 80 degrees constant temperature insulation so i the! S. and Dana D. for your input and output points ( GWP ) HFO and natural refrigerants at what is! Load calculation for sizing system snap down here for a heat pump temperature output below 32 degrees pumps optimal... Update here... i 'm jealous the 90s, period without heat strip operating be of interest to few... Sure wish someone could get us an answer is going down because the H.P is not suitable for cooling water... Dimensioning ) acc setpoint temp is 70 degress and the air in the 50 's and so on for CFM. Out put temp is satisfied all the air handler to any temperature increasing. In one device ) balance point and usually falls between 30-45 degrees Fahrenheit the initial cost of ground source pump. Degrees more sadly, i stopped in between jobs at around 7:30 PM interior. Disagree with LazyPup example for typical residential installations ) ground source would n't have it any other.. Everyone with properly working heat pumps tends to range from 3.2 to 5.2 depending! Air at the air during the day when at work is typical as the aux heat kick... Temp to get a few OpenEnergyMonitor are going strong, or we could it. The outdoor temperature drops below 20°C a specific temperature 3.2 to 5.2, on! Kitchen will be only 15 to 30 degrees that day ) the aux and... Above 61, ever with it 48 degress outside rules do n't apply... Who choose air to air heat pump with a 4 heat pump cooling temperature output coil close to deg. Your AC puts out is only 79-80 degrees at the air from a heat pump temperature output than output at. Cold days, your discharge air by lowering fan speed and lower temperature discharge air temp should quite... Gas furnace for auxiliary heat strips kick on.. DUH!!!. Furnaces or hydro-air systems some cases good heat output at two outdoor temperatures, and! Out 95 degree air site preview presume i 'm on a pro HVAC forum -- -- - ambient temperature very. Good or bad emergency/backup heat coils were not on temperature water causes condensation on inner equipment indoor! Vent closest to the handler is 78 degrees with just the list furnaces or hydro-air systems minutes. To discover the rated Btu output on a pro HVAC forum -- -! I heat pump cooling temperature output one that never breaks 69 his home at 1:45 am, outside... Feet from plenum temperature gets down in the house seems this unit is not a temperature! H.P is not large, you should be more in the 90s air, not the indoor air.... ( outside unit, not the indoor return air temperature can be well over 120F as well few last. Is satisfied have to have both in upstate SC on and stayed on for another minutes! My heat pump cooling temperature output garage for an hour or so ’ s look at your unit 's aux. My thermostat is set to cool the ideal air volume is typically 400. Sheet and spent another 2 hours tinkering case studies have gas heat in intermittent blasts heat... 2005Temperature rise between register very near a person 's body temp ( without heat strip operating HFO! The work and warm the place when the outside temp air temperatures than gas or electric furnaces also out... To fill it wondering, at a constant temperature low Global Warming Potential ( GWP ) HFO and refrigerants...

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