Example - Maximum Heat Pump Efficiency. 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 I presume I'm losing heat in the slab/ductwork but how do I quantify how much? I get 75 at the nearest register, some are around 72 and I have one that never breaks 69. THE OUTPUT TEMPERATURE AT THE VENT CLOSEST TO THE HANDLER IS 78 DEGREES WITH JUST THE PUMP RUNNING. He didn't sound too alarmed and I got the air from a heat pump is never as warm as natural gas lecture. At cooling mode is output water temperature limited to condensing temperature. Heat pump is not suitable for cooling with water temperature under condensing temperature e.g. (60 °C at type HP) However, efficiency is worse at this temperature (COPdecreases). Even in a hot summer day, our heat pump had to only start 3 Or you're measuring the air at the inlet, not the outlet. Perfectly fine by me. Aux heat was indicated to be on. I HAVE A 2.0 TON TRANE XR13 HEAT PUMP. Dividing 2400cuft/hr by 60 minutes per hr = 40cu.ft per minute. although if the unit is on a slab, I highly doubt the ducts are in the slab. Sadly, I don't recall the size of heat strips but in this case they add 11 degrees to the output temp. As the outdoor temperature drops, the heating requirement of the house increases and the output of the heat pump decreases. I had the thermostat set at 63, and the house would go above 61, ever with it 48 degress outside. Heat pump temperature output is based on several factors, the outside temp is one of the most important. Heat pump with higher output temperature (e.g. the low temp in fl is maybe 50 degrees, in oh with 38 in oct, a heat pump is doing practically nothing. Those are, of course, the vents closest to the unit. In the experimental range used, the cooling output, Q output, and COP increased with an increase in the temperature of regeneration heat source. 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. 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. High Temperature Heat Pumps provide output temperatures in excess of 55C with a maximum output flow temperature of 120C. We also turn the unit off during the day when at work. For any temperatures below the balance point, supplemental heat will be required. Even on really cold days, your discharge air temperature should be quite a bit more than 72 degrees. 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. I guess you are getting "regular retail" at $10K with install and set up. F. After two minutes of operation, the temperature coming up from the ducts was 93 deg. Your installer should verify the charge in the heat pump and the compressor. Thanks. This number is comparable to the steady-state efficiency of oil- and gas-fired furnaces. I'm just worried why he had to fill it. 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. 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. 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. During cooling it should reduce the intake air temp 20+ degrees and during heating should raise it a similar amount. It got chilly enough here in FL last night to try my heat pump for heating. Ignoring supplemental electric resistance heat for a moment...with standard heat pumps the colder the outdoor temperature, the colder the discharge temperature on the inside. The maximum theoretical efficiency can be calculated by using (1b) as COPheating = (40 + 273) / ((40 + 273) - (-5 + 273)) = 6.95 The first night, I stopped in between jobs at around 7:30 PM, interior temp was about 63°F. Heat Pump Calculator 1. 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. The discharge temperature on ANY heat pump system is going to vary with the outdoor temperature. Here is a link that might be useful: link to FanHandler site. Heat pump can be also used for cooling. 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. 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. Heat Pump – How does it work Heat Pump, Refrigerator, Air Conditioner – basic principle of operation. At 2.8F outdoors. (CO2 & Hydrocarbon) I keep my house on 68 winter and summer. At warmer outdoor temps it was mostly in the 120F+ range, comparable to condensing gas furnaces or hydro-air systems. The Trane wholeseller usually has a residential specialist on their staff who might offer suggestions. heat came on and stayed on for another 40 minutes. In the experimental range used, the cooling output, Q output, and COP increased with an increase in the temperature of regeneration heat source. 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. 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? An air to air heat pump operates between temperature -5 oC on the cold side and temperature 40 oC on the hot side. Low temperature water causes condensation on inner equipment of indoor unit and thereby the damage. Airflow through the ducts appears good, which IMO implies good sealing. • … Was mostly curious about the additional bump from the heat strips. Saber más. I have a 25HCB636A300 condenser with a 4 ton coil. The unit was 5.5 years old, just outside of warranty. Lows of 30°F one night and 33°F the next. I don't know didly about heat pumps, but something isn't right with your system. 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. This is not a rip off, it is the going rate for AC. Your heat pump's output is based on the temp of the air in the house - that is - its intake air. An increase in the input temperature (T cold ) means, for example, an oversized ground source of heat. Amy: a small non-sequiter: are you a Schweitzer frau by your moniker? What model do you have? Take your thermometer out and you should have 20 degrees Fahrenheit differential between your return and your supply air It runs for about 20 minutes at a clip. Instead of generating higher-temperature heat in intermittent blasts, heat pumps generate lower-temperature heat continuously. Its not a set temperature like the other guy just responded to you. Clay, Backup heat for mini-splits? Alibaba.com offers you an exclusive collection of heat pump temperature output that not only conserve energy for you but also serve the purpose of heating proficiently. 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… The maximum theoretical efficiency can … with theese conditions I would think the system is putting out about 30 to 50% of it's rated capacity. See 2020 update here Summary of a brief presentation at the Ground Source Heat Pump Expo at the Ricoh Arena on the topic ‘Energy or Performance Monitoring’, so its timely to do a little blog here to elaborate … Continue reading Heat Pump Performance Monitoring Examples Using the outdoor and indoor temperatures on the manufacturer’s Heat Pump Performance Table, plot the rated Btu output. also it depends on the volume of air in the unit. 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. I have a question though about the heat strips. Has your ductwork been thoroughly inspected?My opinion. 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. In fl is maybe 50 degrees ( burrrr ) then the heat pump performance table like should! 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