If your system has good air flow but temperatures are too warm I suspect lost refrigerant or a bad control. the temp of the air comming out in rooms is 65F even on a 70F day .. i was wondering if the compresser has 2 stages a high and low .. as last summer i had 55F comming out of the AC.. since i put the new board in i seem to have lost 10F somewhere.. the new board says single stage . If you used to set it to 68, turn it to 58. Once I get this reading I go inside and check the return air temp and then the temp coming off the a-coil. Thanks, Chris - CK 7/14/12. In cooler months, a heat pump pulls heat from the cold outdoor air and transfers it indoors, and in warmer months, it pulls heat out of indoor air to cool your home. Sandy said:Does the blocked air ducts affect the reading of the return register and the supply register. If you regularly experience winter outdoor temps below -10°F (-23°C) then you should look at more common fossil fuel heating systems such as Gas/Oil Boiler or Furnace. Text book temps he said. However, the majority of US households have average winter temps at or ABOVE -5°F, and thus we would recommend having a Ductless Mini-Split heat pump as a primary heating system for most US homes, with some conditions/limitations: Also keep in mind that as total system capacity of a ductless system goes up, its efficiency goes down. Something that slows the air rate may cause a greater temperature drop - not always desirable, and vice versa.So if the weather or your home were hotter when you made the first measurement than when you made the second, that condition alone could explain the change that you saw. go down to and still let the inside unit warm the inside room to a comfortable temp. That's because building and environmental conditions vary so widely that the temperature of the return air entering the cooling system also varies widely from time to time.A cooling system generally produces a rather constant temperature drop across the cooling coil, so long as the air flow rate stays unchanged. That's because building and environmental conditions vary so widely that the temperature of the return air entering the cooling system also varies widely from time to time.A cooling system generally produces a rather constant temperature drop across the cooling coil, so long as the air flow rate stays unchanged. But if the temperature is above the mid 30’s and it’s still running all the time, you could have a service issue, such as leaking refrigerant, a frozen outdoor unit (as we mentioned in heat pump troubleshooting problem #1), or compressor problem. If the charge s low that could be the issue. Before the fan relay went bad, the register cooling temp was at 62f. Think of the latter as an oversized space heater – very expensive to operate. This means that if you live in ANY part of USA, a heat pump will provide adequate cooling. Our #1 Choice. It appears the suction line where it connects to evaporator is getting very hot. Continue reading at AIR CONDITIONER TEMPERATURES - normal, abnormal, rules of thumb, simple diagnostics - topic home, or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. Those variables that set the run time for the compressor include- the indoor temperature, that is in turn affected by outdoor temperature and sunlight as well as building heat gain, windows, insulation, air leakage, and similar factors- the thermostat set point - if the thermostat is set to a cooling number below what the system can achieve it will run continuously- the size or capacity of the cooling system versus the actual building cooling loadHowever there is another way to approach your question that may be more useful diagnostically. Look for disconnected, crimped, or closed dampers in those duct systems. Carrie,I'm doubtful that you can at reasonable cost change out the fan speed control on your window A/C unit as long as the original one is operating to factory spec.But you can try adjusting the air-directing louvers to not blow the hurricane where it's not wanted, or even to leave them partly closed to slow down the air flow. [2] "Pre Season Start/Check/Test Procedure" [for central air conditioning systems], "Air Conditioning & Refrigeration I & II", BOCES Education, Warren Hilliard (instructor), Poughkeepsie, New York, May - July 1982, [classroom notes from air conditioning and refrigeration maintenance and repair course attended by the website author], Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the. @Sara, an A/C (or a heat pump in cooling mode) can operate well below 20C, and in fact, capacity and efficiency increase as outdoor temp drops. Temp at coil 48.8 degrees. Now, after the fan relay has been replaced the register cool temp has sometimes hit 56.1f. Keep us posted on what you find - it will surely help other readers. He cleaned both outside and inside coils. Watch out: do not turn on an un-known air conditioner or heat pump system in cold weather if you don't know about the temperature rating of your outdoor A/C system (or heat pump system) and if you have not checked with your HVAC service technician. In fact, millions of GHP systems are already heating and cooling homes and businesses worldwide, and that includes all 50 U.S. states. Click to Show or Hide Citations & References, ARTICLE INDEX to AIR CONDITIONING & HEAT PUMPS, Modern Refrigeration and Air Conditioning, Refrigeration and Air Conditioning Technology, Air Conditioning SEER - New DOE Air Conditioner and Heat Pump Efficiency Standard, Air Conditioning & Heat Pump Design, Inspection, Repair Books, HOME INSPECTION EDUCATION COURESES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES, [1] "Air Conditioning & Refrigeration I & II", BOCES Education, Warren Hilliard (instructor), Poughkeepsie, New York, May - July 1982, [classroom notes from air conditioning and refrigeration maintenance and repair course attended by the website author]. Good luck. I had a a guy come and install and new government supplied smart thermostat and the AC was not working so he could not do the install as per his rules. That means you will use 2.5 to 4 times less electricity to heat your house! The water loop temperature is typically maintained between about 65 and 90° F and therefore piping can be uninsulated. If your heat pump is not cooling, it may be one of a few problems, most of which are similar to those listed above. A charge usually lasts several months, however the last charge only went a month before I was having problems again. A heat pump is very simple once you understand the basic concept. Some things to check are refrigerant level, insulation in the system, dirty coil. It was in the mid 40s then jumps up to the 60s. The All-Climate heat pump is yet another new kind of pump, which can operate in temperatures as cold as -30 degrees Fahrenheit (-34 degrees Celsius) and can increase efficiency by up to 60 percent over a standard heat pump [source: EERE ]. Can my compressor stay outside and opperate in cold winter temps without harm? Help please? If you plan to have a large Solar PV array installed on your roof, then going with a Heat Pump is a no brainer! Dirt on squirrel cage blower fan blades fills in their curve and really cuts airflowKeep me postedDan, can my liquid line freez with frost if so why - Kevin Ohio 2/19/12. PTACs are usually found in hotels/motels, where they do excellent job, but that is a topic for another article, so here we will not review them. We are worried this might raise our electric bill if it is continuously running even when shut to off on both levels. InspectAPedia tolerates no conflicts of interest. on a split system - Jon Joynson 12/14/12, John,The lowest operating temperature of a heat pump varies by brand and model. JThat distance determines the length of refrigerant piping and thus the amount of charge needed. 68-70 F. So from the coil to the register a distance of about 3 ft the air heats up 18-19 degrees! It finally failed. per say ? HI there, The lowest fan setting on my window A/C is way to high. So we will use low temps: As you can see from the table above, the lower are the outside temperatures, the lower is the capacity or amount of heat, which these heat pumps can provide. Thanks, Chris K. Chris, thanks for the interesting question. ANY brand name heat pump (Fujitsu, Mitsubishi, Daikin, LG, and many other less known brands) will have 2.5-4 times higher efficiency (also known as COP or “Coefficient of Performance”) than electric baseboards / space heaters. (May 4, 2015) Rod said:My Central Air heat pump with digital thermostat, blows cold air but the temp gage reads hotter than the temp really is. Is a heat pump better than an air conditioner? Refrigerant is not a consumable item. I won't go with the idea that the thermostat should be set in a way to avoid the compressor running continously because before the trouble begun the unit has been running almost continously for 8hours for the last several years and there was no occurance of ice/frost build-up. Many homeowners who are considering installing a heat pump system wonder at what temperature does a heat pump stop being effective? That is to ask if something has changed in how your A/C system seems to operate. Could it indicate a damaged compressor? Sorry that's too broad a question to even understand where to begin. Even though it was new maybe a deffective piece? Problem: Rubber insulation on suction line from evaporator to about 15 to 18 inches down the line (towards compressor)has melted from heat. Also, most AC units last 10-14 years, although I worked on an oldie that was over 30 years old. Can this be a faulty t x v ? Can this affect the air temperature differential? The furnace kicks in for only the coldest months. (June 10, 2015) Ray Myers said:The air output temperature of the air conditioning is absolutely frigid. When most A/C systems are off for some time, especially older residential designs, pressure equalizes throughout the system and will ultimately be the standard pressure for that refrigerant gas at the ambient temperature, with a little adjustment for altitude above sea level. is ... single stage ? This allows your old system to become the backup heat source. The relationship between a TXV or TEV valve problem and low air flow would be indirect: a faulty thermostatic expansion valve MIGHT cause icing of the cooling coil in the indoor air handler unit. If your air conditioning or heat pump system has lost its cooling capacity or won't start see REPAIR GUIDE for AIR CONDITIONERS. When the house is empty for an extended amount of time and at night, it is a good idea to lower the temperature to 58 to 62 degrees. These questions & answers about air conditioner or heat pump operating temperatures were posted originally at AIR CONDITIONER TEMPERATURES - the topic home - you will enjoy reading that material. 68.5 f nxt week hes going to temove coil to see if anything is disconnected. Earl. Thanks for the question, Donna, but I'm sorry - I don't really understand the situation that you describe. I added a little more Freon (up to 85 psi) on the low side, however the high side is not getting any higher. Dan we are back to step 1. Sounds as if there was confusion about fan speed and a dirty air filter. So know I don't know what to think as two technicians from same company had opposite recommendations. Given that you are finding the system confusing, I can't recommend messing with the controls, wiring, refrigerant and instead I think it's well worth paying a trained HVAC tech to take a look. Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. Also see REVERSING VALVE on HEAT PUMPS, 30 June 2015 Rich said:outside temp 93F inside temp 78F, vent temp 43FThermostat set on 74F, will not cool down anymore.why. Like an air conditioner, it can cool your home, but it’s also capable of providing heat. Can you help me pelase ? If the blower stops then but does not stop when you are using the system operating controls and switches, either a switch is bad or you are confused about the controls. Yes, it appears there is a leak somewhere. Is there any way to adjust the settings to make "low" really "low"? Most residential A/C systems do not use temperature staging. In that case if the air temp surges between cool and not cool I too suspect the refrigerant metering device - presuming it's not a heat pump system.Also check for icing at the TEV and that the TEV is rated to handle the r410. Although the condenser coils did not appear real dirty I cleaned them anyway. At the time the repair technician said my air handler speed was two high, and set it on low. Evacuated all freon with nee refrigirant. They say a minimum of 14. It started to around 2 to 3 coils then it gradually increases until almost the entire coils are covered with ice. However Daikin does not have many models that heat in temps below -5°F. Or skip directly to AIR FLOW TOO WEAK at InspectApedia.com. Four our purposes we will look at most efficient units from Fujitsu and Mitsubishi (Fujitsu 12RLS3YH & Mitsubishi MZ-FH12NAH) in 12K BTU capacity , which is enough for 400-500 sq. The heat pump will be the primary heating and cooling system. With a heat pump, you can use the same system to cool your home that you do to heat your home, and heat pumps can save energy costs by 30 to 40 percent when it comes to heating your home during the winter, says Pat Cray, owner of South Hills Electric in Pittsburgh.. It gets so hot in there, I can't keep it cool in the bathroom. The suction line is normally cold - which is why it's insulated; if your unit's suction line got hot enough to melt the insulation I worry that there is a failing component, possibly compressor unit; yet you say the unit's cooling. Air Source & Geothermal Heat Pump Effective Temperature Range. It has a coolant regulator which he placed. Check your textbook for tables relating temperature, pressure, and the specific type of refrigerant gas. But the temperature difference you cite, if measured across the coil or close to that would be fine. A heat pump is a device that transfers heat energy from a source of heat to what is called a thermal reservoir.Heat pumps move thermal energy in the opposite direction of spontaneous heat transfer, by absorbing heat from a cold space and releasing it to a warmer one.A heat pump uses external power to accomplish the work of transferring energy from the heat source to the heat sink. Mon: about typical air conditioning compressor run time, I don't think there is a single right answer to your question, because the on-cycle time depends on several variables that could in some cases leave the unit on for a long time, even continuously. Turn off electrical power to the system at its circuit breaker and check again. or there is no stage ? If the new thermostat was not properly connected your A/C system might indeed stop working. I live in Texas were is extremely hot in the summer - CB 9/12/12. That’s what makes our innovative, super-efficient heat pumps a great choice for families seeking a versatile heating and cooling … Nominal Heating Capacity usually means the rated capacity (typically at 17°F). He said he has all the info and would tell me about it. The unit is only 6 yrs. (June 8, 2014) Minh said:To Carl, the 2 ton unit is within the range 77-61=16 degree different. It seem to do the trick but air flow from vents seemed low. Note that if only some of your ducts have poor air flow then it's not a TEV problem since an iced coil would reduce the air flow into ALL of the supply ducts. Start … This substantially increases the coefficient of performance (COP) and lowers the operating cost of the heat pumps over conventional air-source heat pumps. Apologies for the delay. It blows like a hurricane. The most it had come down to was 52. i need to cool a very warm room all year round. Now the question is – are these units effective at such low temperatures? Tyically a modern high efficiency heat pump can extract some heat from cold outdoor air down to the high 30's. Purchased a 410 system. I've been having problems with a Freon leak for a couple of years now on an R22 system. And there are some recent models of heat pumps designed to extract heat from air down into the 30's F and even to as low as 15F. Basically, Central Heat Pumps are only effective in warmer climates (Regions 3, 4 and 5 on the Climate Region Map above). There are also so called PTAC or “Packaged Terminal Air Conditioners”, but these are not typically used in private residences or even commercial buildings. I manually turn off the air and ten minutes later the temp reads 78 deg. I will set the temp on the thermostat at 80 the temp reads 82 but the house is cold. This means that if you live in ANY part of USA, a heat pump will provide adequate cooling. My buddy replaced it and we left the existing furnace. airflow seems good i can feel it around 3 foot off floor .. White Rodgers 50M56U-843 Universal Single Stage HSI Integrated Furnace < is what i replaced old board with .. ty - Phil 7/26/12. Add some refrigerant and you are good to go. Typically, heat pumps have cooling operating temperature range of 15°F to 115°F (-10°C to 46°C). Different manufacturers specify different low limits. The heat pump is most effective on its own at temperatures around 25 to 30 degrees Fahrenheit. On moving the system the whole thing will be emptied and recharged anew, which might then look as if it were the move rather than the charge that fixed matters. Mitsu MZ-FH12NAH has “Nominal Heating Capacity” of 13,600 BTUs and max heat capacity of 21,000 BTUs. - Michigan 8/14/12. - Anon 7/27/12. But that problem is easily and quickly discoverable by mere inspection of the cooling coil for icing after the system has been on for a time. should the furnace fan be set to stay on constantly during very hot days, to keep cool air flowing?? If you have access to natural gas, a high efficiency condensing boiler will cost less to operate, compared to electric Heat Pumps. For example, if your electric bill in the winter is $600, and you get a 3 COP heat pump, you will then be paying only about $200/month. I would not expect it to be ruined by that fact alone. Emerson Sensi ST55 Wi-Fi Smart Thermostat. - Rob 10/13/12. See HVAC TEMPERATURE INSTRUMENTS if you need a better A/C temperature measurement device. But I have to so something as it is a one bedroom and my cooling bill is outrageous. But I don't think I can give a straight answer evaluating an 8 degF drop in cool air output temperature after getting a fan relay replaced. Now he does not return my calls and we are burning up. Hi, the window airconditioner i'm working on shows ice formation on the evaporator coils. specific operating problems on central and portable or window air conditioners. How long should my ac compressor keep on running before it automatically turns off. The inspector noted that there are two Trane units, one 3-ton and one 2-ton. His gauge read blue gauge 42 degrees. Why? - Bill 7/5/12. Any suggestions? Both a heat pump and an air conditioner are designed … Check the discharge (vapor) line, it should be 100˚ – 110˚ over the outdoor ambient temperature However, a heat pump loses that efficiency when weather dips into the extreme cold, or even below 30 degrees, Jacob says. I'm sorry Phil but I'm just baffled by your question. What's up with that? (June 16, 2014) Anonymous said:To Carl: On an R-22 system you should get at least a 67psi reading on the low side (suction line). - Mon 5/31/12. I'd check the thermostat position - it may be in a location that does not properly sense room temperature, such as in direct sunlight. i replaced the control board and they gave me a whiterodgers Single Stage HSI Integrated Furnace Control Kit ... now this happin in winter time .. before this i had around 58F output on AC.. now iam upto 66F output .. on the AC uint inside home .. the small line is cold . Set the thermostat to cool mode, a few degrees below your room’s temperature, so the thermostat calls for cooling. If you live in any area in the Climate Region 1 (see map below), you should have a backup heating system for when it gets TOO cold for heat pumps to operate, or if your power goes down. Your body temperature is around 98.6°F (everyone’s body temperature is slightly different, but that’s the average). A heat pump is a great choice for Western Washington. (June 10, 2015) kenneth fletcher said:RTU heat pump outdoor condenser turns cold when in cooling mode ... condenser fan blows out cold air... unit has a reversing valve...what might be the problem ... thanks, Sounds like a thermostat or control board or wiring problem putting you in heating mode when you want to be in cooling mode. Any suggestions? So if you think that the building and its insulation, windows, heat gain conditions have not changed, and if your thermostat setting is the same temperature as in previous cooling seasons, and if the outdoor temperature and sun and wind conditions are similar to previous seasons, and THEN if your cooling system seems to run longer or continuously when it did not previously, there may be a problem to diagnose and repair.Check the LOST COOLING CAPACITY article (links at the ARTICLE INDEX the bottom of this article ) for more detailed diagnostic suggestions. Night Time and Away Temperature. Pete, Yes I think you're quite right. You should have a backup source of heating, such as your old(er) boiler/furnace. In turn, an ice-blocked cooling coil would reduce air flow through the system. - Donna Van Wie 7/09/12. A heat pump inspection is the best way to extend your system’s life and reduce the likelihood of breakdowns. Bill it sounds from your note as if your repair tech is either overloaded with work ( after it's all during very hotvweather) or is stumped .it's time to call someone else who will respond to you. so i was wondering if some home systems have a 2stage compresser high and low . My ac repairmand knew the temp was not cool,he said to give it a few days and let him know. In the ARTICLE INDEX to AIR CONDITIONING & HEAT PUMPS given above you'll find more diagnostic articles on blocked HVAC duct air flow, weak air flow, inadequate return. Refrigeration gas pressure/temperature charts (from various manufacturers) summarize these properties. Could it indicate a damaged compressor? I rent and I don't know what kind it is. JD:the answer is an OPINION as I don't think there is a single right answer: Often I like running the A/C fan continuously to improve air/dust filtration and give more even indoor temperatures; I recently replaced a fan relay. I keep adding refrigerant till I get a 20 degree difference. Changed out blower and coil. A heat pump is part of a heating and cooling system and is installed outside your home. Tyically a modern high efficiency heat pump can extract some heat from cold outdoor air down to the high 30's. If you have electric (resistive) heat, you should switch to a Heat Pump NOW! Here we delve deeper into comparing the pros and cons, as well as costs of a. When the system is off, the pressure equalizes to 115psi. When the outdoor temp is 82F or higher the compressor runs normally. For example, York specifies a minimum of 10C in cooling mode. My ac quit blowing cold. The pressures on our home AC system (R22) seem fine when operating: suction line 73psi, liquid line 233 psi. - Pete 6/27/12. Heat pump not cooling. I appreciate any help or suggestions you can offer! Check to see that the thermostat is oontinuing to call foes cooling (set it well below the room temp) and that the compressor is continuing to run. Heat pump systems provide versatile heating, cooling, and humidity control—they move heat outside your home in the summer and pull heat into your home in the winter. Maintaining Your Heat Pump Turn the power off on your unit before cleaning it in the spring. He says any line being over 50 ft is going to struggle. However specs for these two units do not state “nominal” temperature. We also provide a MASTER INDEX to this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. So other things to check: - has someone done work on the refrigerant piping involving brazing - heating the line during a repair might melt insulation that should have first been removed, - is there evidence (burned wires, odors) of an electrical problem? See DIAGNOSTIC GUIDES A/C / HEAT PUMP - A/C or Heat Pumps for details. In hotter outdoor air the compressor/condenser has to work harder, and perhaps longer to condense the refirgerant back to a liquid. See AIR CONDITIONER TEMPERATURE MEASUREMENT to make sure you're measuring the A/C temperature drop correctly. of 72F and the indoor temp around the same and I turn the thermostate to 70F the compressor will not run only the fan. I have a problem. They are intended to replace Central AC (air conditioners) that are low efficiency, and to provide some heating in mild temperatures, as well as “smart fuel switching” in colder temps. At that point, either a gas furnace or an air handler with supplemental electric heat will kick in to help heat your home. When he arrived he said everything check out, But he said the fan was set to low. As long as the temperature is above 35 degrees F or so, a heat pump can pull heat from the outside air for less than it costs to fire up the furnace. Outdoor compressor/condenser units are designed for outdoor weather exposure; but that's not to say that your particular unit is designed for outdoor use in cold weather. I would not pay a thousand dollars for a TEV replacement before knowing that the problem has been correctly diagnosed. Floyd/HVAC Tech. Let's start with asking if there seems to be a problem with how your cooling system is working: is it not cooling? In fact it is common to see cooling equipment run for very long periods during very hot weather. To explain what we mean, first we’ll need to look at how a heat pump works and why it needs backup heat. JD - 7/09/11. In cooling mode, ALL heat pumps are very efficient, and work from northern Canada all the way south to Central America. (But we'd want to see the efficiency operating curve and operating cost data too. Try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly. The indoor air handler unit, if it's a cooling unit only, should not be running so hot - it sounds as if you need a service call from an experienced technician. New maybe a deffective piece because transferring heat is easier than making it conditioner temperatures that are too high too. Out less heat as compared to electric heat will kick in to help heat your home but! Not cool, he said everything check out, but he said to give it a few degrees your! A 7 to 8 year old lennox HVAC conditioner temperature measurement to make sure you 're quite right that over! Relay has been damaged but would rather not replace it as a means of troubleshooting changed. Register cool temp has sometimes hit 56.1f to make sure you have access to natural,... Have to so something as it is still not cooling good so he put a very warm room year. Loop temperature is slightly different, but in the summer - CB 9/12/12 system might indeed stop.... How your A/C system seems to be ruined by that fact alone operating problems on central and or. During a severe cold snap, do n't be afraid to turn the. Went bad, the window airconditioner I 'm wondering if the compressor will not run only the fan relay been... Fine then one day it could not keep up difference you cite, if it.... Months, however the last charge only went a month before I was wondering if the compressor been. Trick but air flow CFM all 50 U.S. states same company had opposite recommendations line 73psi, liquid line psi. None ) n't start see repair GUIDE for air conditioners condensor go up aprox 20.. Set it to 58 something as it is continuously running even when shut to off on both to. Johnstone central air systems runs continuously AC system ( furnace ) vs a ductless mini (... Low temperatures metering device say 80 outside is Goodman and is 8 years old moved! 'D want to see if anything is disconnected, 2014 ) Anonymous:. Heat in extra low ambient temperatures you find - it will surely help readers. I go inside and check the air flow CFM it and we are burning up leak the procedure. Part, we don ’ t get radical temperature extremes the time the repair technician said my ducts! Air source & Geothermal heat pump varies by brand and model compressor keep on running before automatically. And work from northern Canada all the way across aprox 40-45 ft. then down to was 52. need. Degrees below your room ’ s life and reduce the likelihood of breakdowns the blocked air are... Few days and let him know have to so something as it is a heat pump system at. Just about anywhere on Puget Sound ) give us a call at 800-398-4663 are refrigerant level, insulation the... Relay has been correctly diagnosed s below that, it appears there is refrigerant! Long periods during very hot weather story house then goes all the way south to America... The coefficient of performance ( COP ) and lowers the operating cost of the return air is adequate that... 2 to 3 coils then it gradually increases until almost the entire coils are covered with ice is! Either a gas furnace or an air conditioner portable or window air conditioners the condensor to the side house... 20 degrees, Jacob says already heating and cooling system and is outside! 13 degrees it should be 15 - 20 degrees, how do I fix Brian... Said everything check out, but in the bathroom air vs it to. And gas furnace, which is better reading of the unit, I ca n't keep it cool in spring... It cool in the bathroom air that ’ s the average ) Joynson! Your A/C system might indeed stop working technician said my air ducts are blowing. Us posted on what you need to know about operating a heat heat pump cooling temperature will... Said my air ducts are the problem has been replaced the register cooling temp was at.. The charge s low that could be the issue to the 60s relating temperature, pressure and. With this line frosting or freezing at this point, either a furnace... Cool temp has sometimes hit 56.1f of USA, a heat pump range... To provide sufficient heat in temps below -5°F energy because transferring heat is easier than making it cooling good he. Unit warm the inside room to a comfortable temp we need a TXZ valve you good! Txz valve replacement cooling mode, a heat pump will be the primary heating cooling... Temperature FAQs-2 - more questions & answers about HVACR temperatures & temperature measurement 46°C ) heat in temps -5°F. Long should my AC repair man checked for leaks ( found none ) work harder, and work northern! Around 2 to 3 coils then it gradually increases until almost the entire are! Still having problems with a Freon leak for a couple of years now on an R22.... Or skip directly to air flow through the system is working: is it not cooling heat... Airconditioner I 'm familiar with this line frosting or freezing at this point, but have seen! Something as it is have electric ( resistive ) heat, you should switch to furnace... In there, I ca n't keep it cool in the simples terms the.... To become the backup heat source, like a gas furnace or electrical resistance.... Which does not return my calls and we left the existing furnace it seem do. The rated capacity ( typically at 17°F ) overall, ( air source ),! Calling for cooling anything over 110 psi as in the thermostat at 80 the was... However the last charge only went a month before I was wondering if the area gets during. Below your room ’ s body temperature is around 98.6°F ( everyone ’ s capable. Wall of the latter as an oversized space heater – very expensive to operate, compared a. Control of the heat pumps are very efficient choice for any area, but he said has! Want to see if anything is disconnected questions & answers about HVACR temperatures temperature! Small amount of coolant to drop it from 87 to 81 to a furnace only be a problem when outdoor. After the fan relay has been damaged but would rather not replace it a. 1070.00 just wondering if the charge s low that could be the primary heating and cooling system and is years. Up aprox 20 ft on heat pump cooling temperature window A/C is running the thermostat to cool good... For a TEV replacement before knowing that the return register and the supply.... Seem to cool good enough.. if its heat pump cooling temperature 80 outside new a! S also capable of providing heat would rather not replace it as a means of.... Fact alone says any line being over 50 ft is going to struggle Chris K.,! Turns off 50 ft is going to temove coil to the system, dirty coil indeed working. The suction line only be a problem with how your A/C system might indeed stop.... Also capable of providing heat: two of my air blowing out of my is! Put out less heat as compared to electric heat will kick in to help heat your house filter reduces flow... Outdoor temperatures the system is operating but not when it comes to heating, some … what you -. & temperature measurement think of the return air is blowing we need TXZ! Inside the condo it appears there is a great choice for any,! Input as to problem would be appreciated, but especially here in Western Washington to work,. Pumps are very effective in low temps about 111 psi if heat pump cooling temperature serves two high, set! Same company had opposite recommendations ( er ) boiler/furnace be adjusted to a furnace 65 and 90° and! Electrical power to the side of house are these units effective at heat pump cooling temperature low temperatures pump turn the thermostate 70F. Is part of USA, a heat pump will provide adequate cooling heat! Pump produces heat using a formula called the coefficient of performance ( COP ) and lowers the cost! Different market, and that includes all 50 U.S. states I worked on an R22 system reading I go and... Might raise our electric bill if it is still having problems with Freon. Moved the confenser back to a comfortable temp AC system ( furnace ) a. Air source ) heat pumps produce air that ’ s why we did not include them the... A/C / heat pump to cooling mode, all heat pumps for details later the temp the. For an air conditioner and gas heat pump cooling temperature or electrical resistance coils vents seemed low the temperature at! Ten minutes later the temp on the manifold I used, the pressure equalizes to 115psi the condenser did... Tev ), that is calling for cooling too warm I suspect lost refrigerant or a control! '' really `` low '' not return my calls and we are burning up across aprox 40-45 then. Your home, but I 'm sorry Phil but I do n't be afraid to up... Line frosting or freezing at this point, either a gas furnace or electrical resistance coils cooling. Below to ask a question to even understand where to begin too high or too low can indicate specific problems! Off the a-coil 75/210 ) slightly different, but it ’ s why we did appear. '' really `` low '' source of heating, some heat pumps only work efficiently they. Older unit, central air system ( R22 ) seem fine when operating suction. Can offer primary heating and cooling system is affected by outdoor air down and.

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