Thank you for this. I moved to Texas from CO. I have no experience with a heat pump. Now I understand how my system works. The noises it makes going into defrost is very worrisome if you don't know about it. That bit at the end demonstrating defrost mode made the same sounds mind does. Now I know why. Thanks again!!!
Amazing the way you explain things Ty, I use your videos to try and help others and learn something new myself everyday!!!! Absolutely amazing what you do Ty!!!!
Very great explanation of the complete process. I’m an appliance technician and this made perfect sense. This video has given me everything I need to diagnose my own system. Great content!!!!
Ty, thank you so much for making these videos and explaining everything so clearly. I went to school for hvac but I feel like I didn’t learn nearly as much as I did just by watching your videos. I wish we had instructors like you out here. Keep posting man it’s great stuff
Thank you for your channel sir! Just passed my EPA. All 4 in the 20's. Got my Universal. I have 3 days left of school. Really appreciate It! Learned more here than in school.
Congratulations!!!! Never stop learning Go over to EPAtest.com (mainstream engendering) and hey have some quick certifications you can get. Check out my friends Hvac school with Brian Orr Ac service tech llc Craig Hvacr videos with Chris
Thank you for another fine one. Can't have too many vids on heat pumps to get/ keep the logic STRAIGHT. In addition to "reporting live" perfectly, this gets it through my head about what's happening with The Hoses -- the best!
Hi Ty, I attended NTI this year, you did all the videos. Just want to thank you for all your help, I am now EPA Universal and am working residential and commercial HVAC service and installs. Your information is very thorough and in depth.
This is a great video showing exactly how a heat pump works and how the defrost function works too. But when you were dressed for the outside, you could have given us just one, "...I'm hunting wabbits." 😁
I had an older carrier split heat pump which I installed back in 1989, in a house I built. These old units would go into defrost, even if there was no ice on the coil. Just because the coil klixon thermostat was below freezing, it didn’t mean the outdoor coil was iced up. I ended up having to install a differential pressure switch, that sensed a pressure drop across the coil. It was costing me a lot of money with unnecessary defrosts. GE used that method a long time ago, and it worked a lot better.
Ty, do you have any experience on hydronic and domestic hot water boilers? If so I would LOVE to see you do a video on this topic. So grateful for your content, keep it up brother.
Thanks much for the videos. Please send/post me the link on External Static Pressure measurements as I'm questioning a recent install. Can't quite locate it/them on your channel. I had installed a 2-stage HP as a primary along with a 2-stage NG furnace. Carrier make. In addition to airflow issues, I believe that the HP is running on high only. currently trying to figure out correct wiring and dip switch/jumper settings. Not what I thought I was paying for but willing to learn as much as possible so I don't get BS'd by installer. thanks again.
HI Ty, That looks cold from my vantage point here in Southern California (haha but not really thanks for the reinforcement). By the way, you have a Canine (Izzy) friend believe it or not. I’ve listen to so many of your videos my dog wags her tail when connected to the home speaker. How cool is that!
I love the soutwest! I do a lot of overlanding and exploration in the desert and mountains as well as volunteer off road recoveries. Im very glad to know Izzy is listing, I do love animals! that's the best complement anyone can get thank you!
Could you make an episode for4 way reversing valve I learned lats from you please keep going for teaching you are the right man in right position. Question: if want to replace 4 way reversing valve how could through nitrogen when use heat to take off and install anew one should have to energize it or what? Thank you my teacher.💐🌸
Thank you for making this videos. I appreciate it very much. I am in a process of installing my own heat pump. I am working on establishing the load with Manual J,S, and D. If you have any recommendation, it will be very welcomed. I will keep watching your videos.
I love that you are using manual J S and D! Awesome! What climate zone are you in? Home sealing is very important. If your in a cold climate size for heat and add dehumidifier for the summer. If your in a warm climate size for cooling and add electric supplemental heat for the winter.
@@love2hvac I am in Upstate NY, Seneca Falls (next to Cayuga Lake, approx. 500ft from it) I think is climate zone number 5. The house is old (1900). I've been working on it for months. I have sealed up a lot of cracks, but I still have more to seal. I am on Appendix 4 of Manual J right now. Reading all the Physisc and Mathematics concepts. After that I will get more familiar with the steps for making the actual calculation. It is taking me some time, but I want to do it right. I will keep you posted. Thank you very much for answering. I will definitely need help from experienced techs like you. The house has 19 windows and two doors (one N and one E).
@@CHOMAHOMA Thays great. I think this book would help you too Nate specializes in converting homes to hest pumps. @Nate the House wisperer He has a website youtube and a facebook page (electrify everything) I'll help you as much as I can here is a link to the book and its pretty easy to find his other stuff too. www.amazon.com/dp/1979596883/ref=cm_sw_r_cp_awdb_imm_T63BTDJ1QKEMW6TR2C3T?_encoding=UTF8&psc=1
Thank you for the time you took for the video. I have to question one thing, I noticed you have a thick filter. In my experience I found that a thick filter does the same as a 1 inch filter. Too thick of filter will take away from your static pressure and give you poor air flow. So I recommend getting rid of the thick filter and put in a standard pleated filter
Thank you. I will doa video on filtration later and static pressure later on. You are right about static pressure being a very important issue. If a system is designed properly with the correct surface are it's not a problem. Filtration and static pressure is to often overlooked. It's not as simple as ___ is best or ____ is wrong. Return air, supply air, coil size and total static all has to be taken into account. In this case the customer has had this filter since its installation (not my install) many years ago. I dont remember the install date. It has the original blower motor and wheel, original evap coil that's never needed a coil clean. The static pressure test will tell us for sure. When I get to airflow segments I plan on showing many examples with tests to compare.
People often confuse the issue of thickness. A 4" or 5" filter is NOT 4 or 5" thick in filtration media....it's PLEATED....to give you the same affect as a much LARGER ( length x width) 1" filter....so it filters better and ALSO has LESS pressure drop.
Thank you Mr.Ty for your explanation.What is the maximum temperature (high) for seal which designed to hold the refrigerant in 4ways reversing valve? My friend live in the Middle East and says the temperature is passed (55Celsius) 131Fahrenheit and got a problem in cooling mode which mix in the air.Thankfully and happy new year for all the world.
620.6°F is the melting point of the Teflon that makes the seal. The discharge line should not exceed 225 to prevent oil break down in the compressor. The oil breakdown is much more important than the Teflon seal in the RV. I lived in Las Vegas, that gets incredibly hot. The world record hotest point on earth was 56.7°C (134°F) in Furnace Creek las vegas. I went there when the temperature was 124f the back for the visitor center was still working well but the fuel in the truck was vaporizing before it got to the engine. Hear from driving combined with the air temp. I have also visited an HVAC schools in Saudi Arabia. Big issues they had was sand in the condensor. When I visited Israel the ac worked great but they had water tanks on top of the roof for solar heated water. Your welcome and happy new year to all!
"looks like" but it's not, its just steam and it's normal. Nothing is burning, and never call an electrician for anything related to the HVAC unit. Never call an HVAC person for a problem in the breaker panel, and never call a plumber for either.
Great video, Ty. Very informative. Living in central Florida, I’ve never seen a heat pump defrost cycle actually happen. What is you opinion regarding heat pumps in areas like central Florida, where we may see one freezing day in a year? Most of the HVAC companies here suggest straight cool units rather than heat pumps. I’m in the rocket launching business so I don’t work in the HVAC field, but if i had to choose a trade, that would be it. Thanks for doing what you do.
I was just in central Florida 2 weeks ago doing a ride along with a company, Its a great place for heat pumps! There where people there running the heat in the morning and AC in the afternoon. Depending on the temperature outside a heat pump is 4x more efferent than electric resistant heat, since Florida dosent get that "cold" it makes central and northern Florida prime location. It will most likely never go into defrost its whole life but it will be saving a bunch of electricity. Unfortunately there are a lot of people in HVAC that are against technology. A lot of people don't understand heat pumps and humans tend to dislike things they don't understand.Technology changes are coming regardless and the heat pump in the video is very simple compared to the ductless and inverter systems that are available today. Rocket launching! that is awesome! When I come back to Florida we will have to meet up and talk.
I live in central florida (Orlando/Tampa area). Yes a heat pump (in heating mode) does go into defrost here and the outdoor temperature does not have to be below freezing. The outdoor coil can be 10 to 20 degrees below ambient and central Florida typically gets down to the low 30’s and in the 40s for several days. Even with an outdoor temp of 40-50 degrees, it can go into defrost. Listen for the telltale sounds of a defrost cycle; The whoosh of the reversing valve if you’re outside and if you’re inside, the air handler fan speed increases because the heat strips are energized and sometimes you can even smell the dust burn-off from the strips. All new construction and almost all replacement systems are heat pumps. The energy savings is phenomenal with a heat pump.
when even it goes thru that phase defrost and it making that noise. does the thermostat start making double-clicking noise in between the time its running.? if you know what im talking about. i saw something online saying it the relay but if that true that does that mean
The thermostat may make clicking when cycling on and off and when cycling aux heat. However not with defrost as it's controlled solely by the outdoor unit.
Great video! Question: What size conderser is that -- is it a 2 or 3 ton unit. Also, how big is your house? I say this because I am trying to size my rental property install.
It wasn't my house so I don know the size of either. However its important to know systems are not sized by square foot. Especially with heat pumps a blower door test needs to be performed to see how leaky the home is. that leak rate will then be applied to a heat load calculation called manual J. there are many programs now that make this much easier but you will have to find someone to do a blower door test.,
Where were you when you made this video and did you borrow or buy the clothes? I usually buy then take them out of my vehicle when I get back home and then the next time I get caught in inclement weather I buy some more.
This was Texad during the winter storm. I already had them, comes km great working on freezers and in Nevada we do winter offroad recovery. I like to be prepared.
Hi, the cycling between heat pump heat and auxiliary heat is set in the thermostat? The user needs to set a temperature differential between actual room temp and set temp for auxiliary heat to come on? Thanks
Hi Mark. In the past it was a 2⁰F temperature difference before the AUX heat kicked in. I use to install an outdoor thermostat that locked the Auxiliary heat out of the out door temperature was above 45 or 50⁰F There are so many new thermostats out today that it may be possible to change that differential. Some communicating equipment has lockouts built in. In any even EM heat uses Auxiliary heat as primary when it's activated. Does that answer your question?
Good video, thanks for posting. I wanted to ask, when you said there was a massive amount of btu from changing states in the evap coil, were you speaking of heat pump mode ? Also, I just installed my new a-coil, I also removed the extra drip pan, trashed it, like you said, just got in the way and blocked airflow. :-)
For the indoor coil.... In cooling mode the refrigerant boils changes state from a liquid to a vapor absorbing (away from the air)/massive amounts of BTU. If its a heat pump in winter it will condense changing state from a valor to a liquid ejecting massive amounts of BTU (to the air).
Hi, i have a heat pump with a gas furnace (furnace is for auxiliary heat). Can I just wired the two "O" wires together and not put them on furnace control board?( from heat pump to thermostat directly)? The "O" terminal on the furnace control board doesn't do anything does it?Thanks
If the furnace does not have "O" it should be fine. New control boards monitor more things than ever before, so if the control board has a place for "O" I would use it. Always follow the installation guide. Older furnaces needed to have a separate controller that locked out the heat pump when the furnace ran. Some of the new ones have that capability built in and some don't. You don't want to have the HP and the Furnace running at the same time.
My heat pump goes into defrost mode at night, but it takes about 10 or 15 min to get warm air blowing again out of the ducts, is that normal or are the auxiliary heating coils suppose to heat the air immediately? It's not that cold here, rite at freezing, but when the defrost mode kicks in the house cools down quite a bit, up from 72 down to 68, and it's like that all night.
Something is not right. Sounds like you have a faulty defrost thermostat (sensor) in the outdoor unit. Also sounds like you may have an issue with the auxiliary heat.
Temps are in single digits where we live and our landlord is saying that low temps means the heat pump won't work. You're saying heat still exists even in single digit temps. Is there something wrong with the unit? It's 58 degrees inside our house at 1am.
An electric heat strip is 100% efficient as every bit of power used is converted to heat energy. This means a heat strip has the coefficient of Performance COP of 1:1 A heat pump uses electrical power to move heat, that's easier than converting it. Each model will have a COP chart but typically at 50⁰F outdoor temperature the COP is is 4.5:1 meaning for the energy being used it's moving 4.5 x more heat than an electric heat strips When the temperature drops down in the single digits the COP drops down to 2:1 meaning it's effecency dropped but it is still moving 2 x . More heat than an electric heat strip is converting.
Hi, the honeywell visionpro 8000 thermostat has a setting for outdoor lockout backup heat. If I set it at 30F. Does this mean any temperature above 30F the heat pump will run. And anything below 30F the auxiliary will come on? The temp in my area normally around 25F to 45F. Thanks
Electric heat the answer is simple but with your gas heat dual fuel it's a little different. 0170 you select dual fuel If you have a single stage outdoor unit it would be #7 heat/1 cool heat pump (with auxiliary heat) Or if it was 2 stage outdoor unit you would select #12 3 heat/2cool heat pump (with auxiliary heat) 0200 #1 heat pump backup heat source is fossil fuel 0210 you have to select External Fuel Fossil Fuel Kit (including if the furnace control does this or if your wanting the thermostat to do it. you have to have the auxiliary sensor mounted outside. 0340 select #2 outdoor temperature sensor for control. Outdoor sensor used for Heat Pump Lockout settings 0350 this will be the heat pump compressor lock out. Anything below this number the the heat pump will shut off and the gas furnace will run. If it was aux electric, you want this number low but with gas it's different. You need to calculate the Ballance point. It uses the system capacity charts COP with your electric rates and compares to the cost of natural gas. Every HVAC unit is different as each home is different and geographical location is different. 0360 is the auxiliary heat lockout. This is going to prevent your auxiliary heat from running when the outdoor temperature is above this number. Wen selecting gas as aux it might not give you the 0360 option. For your gas furnace, set it the same or slightly higher than 0350 because you don't want the HP and the furnace running at the same time. If the aux was electric the answer would be different. Pg 33, 34, & 35 explaines it. Your installation book may be different.
I jut had a quote done by my HVAC company and they quoted a heat pump unit and they said that it had to be over 35 degrees to use the heat pump to supply heat. In this video he stand out in the snow and the unit is still operating.
I recommend finding a different company. If they think a heat pump has to be over 35, they have absolutely no clue how a heat pump works. It would be highly unlikely they would size it, install it and set it up properly. Find a company that can do a blower door test on your home and have air sealing done first. Some HVAC companies do this and also energy rators can do this. The company you use should do an ACCA manual J heat load calculation ACCA manual S to select a systems capacity to the heat load. ACCA manual D for the duct system size. That will not be a free quote but a service.
You could also get a large tank of water and get the unit that works in water and even you get a layer of ice on top the water below is still above 32 degrees and you should be able to get plenty of heat!
Interesting video Ty. Not impressed though by either the installation or the equipment. How can you have true humidity control without a variable speed compressor? Hard to accept that heat pumps are efficient below a certain temperature. Yes, there is a factor of "heat" at 14 degrees but transferring it into the dwelling is an uphill battle. Cannot imagine this kind of heating solution is more efficient than conventional fossil fuel system.
Nowhere in the video did I compare heat pumps to fossil fuel systems. They system is heating without auxiliary heat at 14F maintaining the temperature of the house. The only point it needed auxiliary heat is during defrost. It's just the facts of a properly operating system no different than the facts of a properly operating gas or oil furnace that I also have video on. In some places customers do not have access to natural gas or propane. They can effectively continue to heat the home. Dehumidification has been used since the days of Willis Carrier long before variable speed compressors have been around. Variable speed compressors actually have more difficulty with humidity control as the coil temperature is higher on lower rpm.
Those drain pans under the water heater are useless in my opinion. My boiler broke out leaking and the water went about a foot from the boiler and flooded most of my basement. You need a totally enclosed box with a drain.
Not a knock against Ty, but lol, that Carrier clone system is probably making next to no heat in 14 to 8 degree F weather. And all those top air discharge systems will accumulate snow and eventually fail to heat after a while.
I am away right now but when I get back I can pull the data for that unit and I can show exactly how many BTU it was moving at that condition. It will be a little bit before I get back to it.
My Heat pump is very confusing. I have had gas furnaces my whole life. Temp is 20-40 here now and my heat pump runs all the time, driving me nuts. ALL. THE. TIME. It is not quiet. I don't understand why it just keeps cycling back and forth from Heat to Aux. Even when the room is at the set temp. My room temp never varies more than 1 degree. Often I see the Aux heat kick on WHILE THE ROOM IS AT THE SET TEMP. Why? There is a setting on my Emerson Sensei ST55 thermostat to tell it to cycle "slow" which is supposed to give a wider range of temp. I am ok with it shutting off for a while and dropping a couple degrees. But that setting seems to do nothing. I do understand it might be easier/more efficient to maintain a temp rather than climb a few degrees all time but jeez this seems excessive. But here is the weird thing. The internet tells me it is normal for my Heat Pump to run all the time when it is this cold. OK fine.....But when I walk past 19 other identical townhomes only 2-3 heat pumps are running at any given time. One is ALWAYS mine. Some of them I have never seen them running. WHy?
There is a lot to unpack here. If it's at set point your auxiliary should not be cycling. It is normal for a heat pump to run continually to maintain temperature at or below design conditions. However I don't know your design conditions or how well air sealed your home is. You will probably need a heat pump specialist who understands the whole house system and not just a repair person for this.
Yes sir you are correct 💯 I will be making a HP series and cutting this into segments with voice over. I do HVAC not sound or video production. It was so cold the camera and microphone kept freezing up. Most of my videos have audio issues as I don't have the funds to hire someone to correct them.
@@love2hvac Please read comment to the end, as I have a question for you sir. No need to be hard on yourself over that. I would suggest clipping the microphone further down your coat for a lower gain. It is unusual to talk directly into a lapel mic, they are usually under the chin on a collar or even lower, but I know you had a winter coat on, a little more difficult.. I appreciate your efforts for a voice over, they are great in noisy conditions. QUESTION: a very good friend of mine just had a complete Carrier, dual system from the flagship 'Infinity' line installed. So, this is the variable speed heat pump, and variable speed gas furnace/forced air system. The tech/installer set the temp at which the furnace takes over to 25 degrees. Since I have an extended Mitsubishi split system as primary in my home, I am VERY aware of the defrost cycle. I warned my buddy about the defrost mode. He told me that the tech said there would be NO defrost cycle with the heat pump! I never heard of such a thing. We went round and round on it. I want to call his dealer and ask which Carrier model heat pump has a NO defrost cycle 😄.. I did my homework and reviewed all the information I could fine at the Carrier website, all I could find was the fact that, defrost cycles are set to 'regular' intervals and take place when the outside temp hits 32 degrees. I also learned elsewhere that if the dew point is above the coil temp, you get frost buildup. Like to know what you may know about Carrier. I am still going to call the outfit because, they were one of my bidders when I was shopping for a new system and for particular reasons I won't mention here, they were not selected. Thanks for reading this through this LONG reply. 🙂
@@garysmith8455 With the older dual fuel (HP furnace combo) units, when the heat pump needed defrost the furnace just took over. It was because the furnace is in the air stream before the coil, so the heat from the furnace would be too much for the coil during defrost. New systems should have the ability to run low heat of the furnace to allow defrost. I have not worked with a carrier dual fuel infinity in several years so I am not sure what they have programmed in. Electric aux heat has the heat strips after the coil so it can run with the heat pump to assist during low capacity. The furnace even in low heat cannot assist because the heat is already the same or greater than the coil. They typically don't want the coil. Before the furnace as the moisture and temperature can cause the furnace heat exchanger to rust out prematurely.
Guys the defrost will defrost in seconds NOT mins. I am a retired service guy so again the defrost is in seconds NOT mins. Easy mistake on camera to make.
A defrost can be as short as 30 seconds but it is typically a few minutes. Rheem has a 8 minute maximum defrost. Carrier, Bryant and Goodman systems have a 10 minute maz defrost. Lennox Trane, Rheem, Nordyne have 14 minute maximum defrost time. All with different demand and termination temperatures. Now on test mode, the pins just speed up defrost. So 10 minutes become 10 seconds. So in test mode defrost would be just a few seconds. However it's best to speed up to defrost then remove the test pin jumpers so you can actually test the full defrost time .
Okay this is false info. In the summer the insulated line is cold and the bare line is hot, don't let the suction in suction line trick you. In the winter time, the insulated line is warm and the bare line is cool. I'm just saying, cold air isn't coming out of my heat pump in humid 95 degree heat.
Our company It is a scientific and technological enterprise specializing in the R & D, production, sales and service of solar energy, air source heat pump hot water, heating and refrigeration engineering systems. It is the development and cooperation unit of Zhejiang Energy Research Institute - new energy source. The company won the title of Hangzhou high-tech enterprise in 2010 and ultra-low in 2011 The warm air source heat pump unit project won the national science and technology small and medium-sized enterprise innovation fund project award, and won the new industrial product award of Zhejiang Province. Also we want to find some partners or agents，If you are interested, we can communicate this matter。 Relying on the high-tech of Zhejiang University and the first air source heat pump with normal heating of minus 25 ° in China, the company is the only "dynamic and static combination defrosting" patent technology in China (patent number: zl201310163521.4, inventor: Liu Yinlong), combined with the advanced modern production equipment of China and Germany. It has a number of energy-saving patent technologies - split pressure solar collector module, and its products are exported to the United States, Germany and Switzerland In Dian, Korea and other regions, the solar collector module has passed FSEC certification in the United States and TUV certification in Germany. At present, it is the most efficient, energy-saving, low-carbon, emission reduction, environmental protection and safe central hot water equipment. My e-mail: fexur@@t
Just likefurnaces, they work great when done correctly. I don't care for the politics but HVAC is technology be it gas, oil, electric, HP, Hydronics, Geothermal, radiant or anything else. I see just as many misconceptions with gas heat as I do heat pumps. Just trying to educate.
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Anyone that freezes himself , only to help teach HVAC , is number one in my book. Thank You.
That heat pump looks warm
Above & beyond!!
And I bet it’s nice and toasty inside the house at 76 degrees 😊
Mr. Ty, thank you so much for staying in the cold to give us this valuable informations.
Thanks, sorry for the bad audio I will be splitting it up making it better and doing voice over.
Good job! I always wondered why the heat pump made the “swooshing” noise in the winter. Now I know. Very good explanations. Cheers!
Thank you for this. I moved to Texas from CO. I have no experience with a heat pump. Now I understand how my system works. The noises it makes going into defrost is very worrisome if you don't know about it. That bit at the end demonstrating defrost mode made the same sounds mind does. Now I know why. Thanks again!!!
We just started defrost in my class and watched this on our none lab day and it was super informative
Thank you, sorry for the bad audio, i will be remaking it soon
Amazing the way you explain things Ty, I use your videos to try and help others and learn something new myself everyday!!!! Absolutely amazing what you do Ty!!!!
Very great explanation of the complete process. I’m an appliance technician and this made perfect sense. This video has given me everything I need to diagnose my own system. Great content!!!!
Ty, thank you so much for making these videos and explaining everything so clearly. I went to school for hvac but I feel like I didn’t learn nearly as much as I did just by watching your videos. I wish we had instructors like you out here. Keep posting man it’s great stuff
Thank you for your channel sir! Just passed my EPA. All 4 in the 20's. Got my Universal. I have 3 days left of school. Really appreciate It! Learned more here than in school.
Congratulations!!!! Never stop learning
Go over to EPAtest.com (mainstream engendering) and hey have some quick certifications you can get.
Check out my friends
Hvac school with Brian Orr
Ac service tech llc Craig
Hvacr videos with Chris
Thank you for sharing
Thank you for another fine one.
Can't have too many vids on heat pumps to get/ keep the logic STRAIGHT.
In addition to "reporting live" perfectly, this gets it through my head about what's happening with The Hoses -- the best!
As a tech, I do find his explanations a lot more thorough than most. He definitely explains things with typical questions in mind.
@@jericosha2842
Yes, he knows the nuances of teaching the trade. His techniques should be studied and copied by serious teachers.
Hi Ty, I attended NTI this year, you did all the videos. Just want to thank you for all your help, I am now EPA Universal and am working residential and commercial HVAC service and installs. Your information is very thorough and in depth.
Thanks Gary
Congratulations on your completion.
Gary Horvath Congratulations 🎉🍾🎊 hope you do RUclips videos of HVAC content
This is a great video showing exactly how a heat pump works and how the defrost function works too. But when you were dressed for the outside, you could have given us just one, "...I'm hunting wabbits." 😁
The woodpecker that flies between his head and the house between 14-16 second in is priceless!🤣🤣🤣
Thank you for the explanation!! I’m over here thinking my fan motor/ capacitor was bad 😭
I had an older carrier split heat pump which I installed back in 1989, in a house I built. These old units would go into defrost, even if there was no ice on the coil. Just because the coil klixon thermostat was below freezing, it didn’t mean the outdoor coil was iced up. I ended up having to install a differential pressure switch, that sensed a pressure drop across the coil. It was costing me a lot of money with unnecessary defrosts. GE used that method a long time ago, and it worked a lot better.
Outstanding education & easy to follow video!
Great camera work with good demos to illustrate narrative!!
Another great video. Thanks for the effort putting this together!
Very good information thank you for all
Thank you for your efforts to make this video: waiting for defrosting switches is not fun in such cold weather
🤣🥶😅
I appreciate your time to make this video.
Thank you John. I will make some more HP videos this winter
Ty, do you have any experience on hydronic and domestic hot water boilers? If so I would LOVE to see you do a video on this topic. So grateful for your content, keep it up brother.
We love our heat pump, just had a new furnace and heat pump installed to replace the old furnace and heat pump
When sized serviced and installed correctly they work great!
I could use this video in my training program if that audio was better. Microphone positioning is tricky.
The audio was absolutely horrible!
I will be cutting this up with voice over in the heat pump playlist
Thanks for all the videos ty! Still the best teacher out of ATI!
I'm just honored I had a chance to be a small part of your career. You are a great guy and one I will never forget.
Thanks for these videos. Best visual as you said. You are the visual guy. It makes my day I watch your videos. Keep it up. Best teacher.
Thanks much for the videos. Please send/post me the link on External Static Pressure measurements as I'm questioning a recent install. Can't quite locate it/them on your channel. I had installed a 2-stage HP as a primary along with a 2-stage NG furnace. Carrier make. In addition to airflow issues, I believe that the HP is running on high only. currently trying to figure out correct wiring and dip switch/jumper settings. Not what I thought I was paying for but willing to learn as much as possible so I don't get BS'd by installer. thanks again.
I have not made the videos yet for ESP. I'm behind on video recordings.
@@love2hvac does the air handler blower have an ecm motor
HI Ty,
That looks cold from my vantage point here in Southern California (haha but not really thanks for the reinforcement). By the way, you have a Canine (Izzy) friend believe it or not. I’ve listen to so many of your videos my dog wags her tail when connected to the home speaker. How cool is that!
I love the soutwest! I do a lot of overlanding and exploration in the desert and mountains as well as volunteer off road recoveries.
Im very glad to know Izzy is listing, I do love animals! that's the best complement anyone can get thank you!
Thank you I actually understand what your explaining.
Thanks, sorry for the horrible audio. I will be making a series soon.
Wow Amazing video
I love This channel
Could you make an episode for4 way reversing valve I learned lats from you please keep going for teaching you are the right man in right position. Question: if want to replace 4 way reversing valve how could through nitrogen when use heat to take off and install anew one should have to energize it or what? Thank you my teacher.💐🌸
Great questions, hopefully I can answer them soon!
Thank you for making this videos. I appreciate it very much. I am in a process of installing my own heat pump. I am working on establishing the load with Manual J,S, and D. If you have any recommendation, it will be very welcomed. I will keep watching your videos.
I love that you are using manual J S and D! Awesome!
What climate zone are you in?
Home sealing is very important. If your in a cold climate size for heat and add dehumidifier for the summer. If your in a warm climate size for cooling and add electric supplemental heat for the winter.
@@love2hvac I am in Upstate NY, Seneca Falls (next to Cayuga Lake, approx. 500ft from it) I think is climate zone number 5. The house is old (1900). I've been working on it for months. I have sealed up a lot of cracks, but I still have more to seal.
I am on Appendix 4 of Manual J right now. Reading all the Physisc and Mathematics concepts. After that I will get more familiar with the steps for making the actual calculation. It is taking me some time, but I want to do it right. I will keep you posted. Thank you very much for answering. I will definitely need help from experienced techs like you.
The house has 19 windows and two doors (one N and one E).
@@CHOMAHOMA Thays great.
I think this book would help you too
Nate specializes in converting homes to hest pumps.
@Nate the House wisperer
He has a website youtube and a facebook page (electrify everything)
I'll help you as much as I can here is a link to the book and its pretty easy to find his other stuff too.
www.amazon.com/dp/1979596883/ref=cm_sw_r_cp_awdb_imm_T63BTDJ1QKEMW6TR2C3T?_encoding=UTF8&psc=1
@@love2hvac thank you so much. That's very helpful.
Thank you for the time you took for the video. I have to question one thing, I noticed you have a thick filter. In my experience I found that a thick filter does the same as a 1 inch filter. Too thick of filter will take away from your static pressure and give you poor air flow. So I recommend getting rid of the thick filter and put in a standard pleated filter
Thank you. I will doa video on filtration later and static pressure later on. You are right about static pressure being a very important issue. If a system is designed properly with the correct surface are it's not a problem. Filtration and static pressure is to often overlooked. It's not as simple as ___ is best or ____ is wrong. Return air, supply air, coil size and total static all has to be taken into account.
In this case the customer has had this filter since its installation (not my install) many years ago. I dont remember the install date. It has the original blower motor and wheel, original evap coil that's never needed a coil clean. The static pressure test will tell us for sure. When I get to airflow segments I plan on showing many examples with tests to compare.
People often confuse the issue of thickness. A 4" or 5" filter is NOT 4 or 5" thick in filtration media....it's PLEATED....to give you the same affect as a much LARGER ( length x width) 1" filter....so it filters better and ALSO has LESS pressure drop.
Thank you Mr.Ty for your explanation.What is the maximum temperature (high) for seal which designed to hold the refrigerant in 4ways reversing valve? My friend live in the Middle East and says the temperature is passed (55Celsius) 131Fahrenheit and got a problem in cooling mode which mix in the air.Thankfully and happy new year for all the world.
620.6°F is the melting point of the Teflon that makes the seal.
The discharge line should not exceed 225 to prevent oil break down in the compressor. The oil breakdown is much more important than the Teflon seal in the RV.
I lived in Las Vegas, that gets incredibly hot. The world record hotest point on earth was 56.7°C (134°F) in Furnace Creek las vegas. I went there when the temperature was 124f the back for the visitor center was still working well but the fuel in the truck was vaporizing before it got to the engine. Hear from driving combined with the air temp.
I have also visited an HVAC schools in Saudi Arabia. Big issues they had was sand in the condensor.
When I visited Israel the ac worked great but they had water tanks on top of the roof for solar heated water.
Your welcome and happy new year to all!
Awesome job as always man! Thumbs Up all the way! 14 degrees man! Great Job !!!!!
Sorry about the bad audio but I'm glad you enjoyed it!
@Ty Branaman No such thing as bad audio in 14 degrees my friend! great job!
ty - you have been inspiration - glad ure making vids.
Hi, so during defrost the indoor coil is cold AND the heating strips are on at the same time? Thanks
Yes but only for a few minutes
@33:20 you mentioned smoke coming out of the unit! Does that mean it is malfunctioning like something is burning up? Should I call the electrician?
"looks like" but it's not, its just steam and it's normal.
Nothing is burning, and never call an electrician for anything related to the HVAC unit. Never call an HVAC person for a problem in the breaker panel, and never call a plumber for either.
Great video, Ty. Very informative. Living in central Florida, I’ve never seen a heat pump defrost cycle actually happen. What is you opinion regarding heat pumps in areas like central Florida, where we may see one freezing day in a year? Most of the HVAC companies here suggest straight cool units rather than heat pumps. I’m in the rocket launching business so I don’t work in the HVAC field, but if i had to choose a trade, that would be it. Thanks for doing what you do.
I was just in central Florida 2 weeks ago doing a ride along with a company,
Its a great place for heat pumps! There where people there running the heat in the morning and AC in the afternoon.
Depending on the temperature outside a heat pump is 4x more efferent than electric resistant heat, since Florida dosent get that "cold" it makes central and northern Florida prime location. It will most likely never go into defrost its whole life but it will be saving a bunch of electricity.
Unfortunately there are a lot of people in HVAC that are against technology. A lot of people don't understand heat pumps and humans tend to dislike things they don't understand.Technology changes are coming regardless and the heat pump in the video is very simple compared to the ductless and inverter systems that are available today.
Rocket launching! that is awesome! When I come back to Florida we will have to meet up and talk.
I live in central florida (Orlando/Tampa area). Yes a heat pump (in heating mode) does go into defrost here and the outdoor temperature does not have to be below freezing. The outdoor coil can be 10 to 20 degrees below ambient and central Florida typically gets down to the low 30’s and in the 40s for several days. Even with an outdoor temp of 40-50 degrees, it can go into defrost. Listen for the telltale sounds of a defrost cycle; The whoosh of the reversing valve if you’re outside and if you’re inside, the air handler fan speed increases because the heat strips are energized and sometimes you can even smell the dust burn-off from the strips. All new construction and almost all replacement systems are heat pumps. The energy savings is phenomenal with a heat pump.
great explanation like usual thanks
Excellent explanation sir!
Thank you, I apologize for the audio
I now know enough to call a professional and ask for a complete check up. I like to do my own stuff but arrogance can cost you more lol.
Awesome video.!
when even it goes thru that phase defrost and it making that noise. does the thermostat start making double-clicking noise in between the time its running.? if you know what im talking about. i saw something online saying it the relay but if that true that does that mean
The thermostat may make clicking when cycling on and off and when cycling aux heat.
However not with defrost as it's controlled solely by the outdoor unit.
Great video! Question: What size conderser is that -- is it a 2 or 3 ton unit. Also, how big is your house? I say this because I am trying to size my rental property install.
It wasn't my house so I don know the size of either. However its important to know systems are not sized by square foot. Especially with heat pumps a blower door test needs to be performed to see how leaky the home is. that leak rate will then be applied to a heat load calculation called manual J. there are many programs now that make this much easier but you will have to find someone to do a blower door test.,
👍🥃
Stay safe.
HAPPY EASTER !🐇
Retired keyboard super tech.
Wear your safety glasses.
Where were you when you made this video and did you borrow or buy the clothes? I usually buy then take them out of my vehicle when I get back home and then the next time I get caught in inclement weather I buy some more.
This was Texad during the winter storm. I already had them, comes km great working on freezers and in Nevada we do winter offroad recovery. I like to be prepared.
Hi, the cycling between heat pump heat and auxiliary heat is set in the thermostat? The user needs to set a temperature differential between actual room temp and set temp for auxiliary heat to come on? Thanks
Hi Mark.
In the past it was a 2⁰F temperature difference before the AUX heat kicked in.
I use to install an outdoor thermostat that locked the Auxiliary heat out of the out door temperature was above 45 or 50⁰F
There are so many new thermostats out today that it may be possible to change that differential.
Some communicating equipment has lockouts built in.
In any even EM heat uses Auxiliary heat as primary when it's activated.
Does that answer your question?
Great thanks
🐐
Hello dear sir
Thanks for your vid
I have a question please how to calculate temperature when using pt chart to determine desired p
My friend Craig has a video on this. I will get around to posing one soon.
ruclips.net/video/q8wyKe_QfG8/видео.html
@@love2hvac thanks ❤
Good video, thanks for posting. I wanted to ask, when you said there was a massive amount of btu from changing states in the evap coil, were you speaking of heat pump mode ? Also, I just installed my new a-coil, I also removed the extra drip pan, trashed it, like you said, just got in the way and blocked airflow. :-)
For the indoor coil....
In cooling mode the refrigerant boils changes state from a liquid to a vapor absorbing (away from the air)/massive amounts of BTU.
If its a heat pump in winter it will condense changing state from a valor to a liquid ejecting massive amounts of BTU (to the air).
Hi, i have a heat pump with a gas furnace (furnace is for auxiliary heat). Can I just wired the two "O" wires together and not put them on furnace control board?( from heat pump to thermostat directly)? The "O" terminal on the furnace control board doesn't do anything does it?Thanks
If the furnace does not have "O" it should be fine. New control boards monitor more things than ever before, so if the control board has a place for "O" I would use it.
Always follow the installation guide.
Older furnaces needed to have a separate controller that locked out the heat pump when the furnace ran. Some of the new ones have that capability built in and some don't.
You don't want to have the HP and the Furnace running at the same time.
Thanks again
How hot does the air coming out of the heat pump get?
My heat pump goes into defrost mode at night, but it takes about 10 or 15 min to get warm air blowing again out of the ducts, is that normal or are the auxiliary heating coils suppose to heat the air immediately? It's not that cold here, rite at freezing, but when the defrost mode kicks in the house cools down quite a bit, up from 72 down to 68, and it's like that all night.
Something is not right.
Sounds like you have a faulty defrost thermostat (sensor) in the outdoor unit. Also sounds like you may have an issue with the auxiliary heat.
@Ty Branaman thank you for the response. I will ask the hvac installer to come by.
if u put this in a shed which is alil more warmer would it still freeze
It would turn the shed into a freezer
What if the breaker is tripping while in heat mode it’s 20 • F outside the board is flashing red light D3
Temps are in single digits where we live and our landlord is saying that low temps means the heat pump won't work. You're saying heat still exists even in single digit temps. Is there something wrong with the unit? It's 58 degrees inside our house at 1am.
There is a problem with the unit
Why does it give low/high pressures on the chart for correct charge and not subcool or superheat ?
I do not know the answer to that
@@love2hvac Ok. Im just a newbie so didnt know if it was a silly question. Thanks
If its a reverse AC system and AC is very expensive to run how can this be efficient?
An electric heat strip is 100% efficient as every bit of power used is converted to heat energy. This means a heat strip has the coefficient of Performance COP of 1:1
A heat pump uses electrical power to move heat, that's easier than converting it. Each model will have a COP chart but typically at 50⁰F outdoor temperature the COP is is 4.5:1 meaning for the energy being used it's moving 4.5 x more heat than an electric heat strips
When the temperature drops down in the single digits the COP drops down to 2:1 meaning it's effecency dropped but it is still moving 2 x . More heat than an electric heat strip is converting.
So the heat pump doesn’t shut down automatically to allow the furnace to kick in?
What furnace? Are you making a joke?
Hi, the honeywell visionpro 8000 thermostat has a setting for outdoor lockout backup heat. If I set it at 30F. Does this mean any temperature above 30F the heat pump will run. And anything below 30F the auxiliary will come on? The temp in my area normally around 25F to 45F. Thanks
Electric heat the answer is simple but with your gas heat dual fuel it's a little different.
0170 you select dual fuel
If you have a single stage outdoor unit it would be #7 heat/1 cool heat pump (with auxiliary heat)
Or if it was 2 stage outdoor unit you would select #12 3 heat/2cool heat pump (with auxiliary heat)
0200 #1 heat pump backup heat source is fossil fuel
0210 you have to select External Fuel Fossil
Fuel Kit (including if the furnace control does this or if your wanting the thermostat to do it.
you have to have the auxiliary sensor mounted outside.
0340 select #2 outdoor temperature sensor for control. Outdoor
sensor used for Heat Pump Lockout settings
0350 this will be the heat pump compressor lock out. Anything below this number the the heat pump will shut off and the gas furnace will run. If it was aux electric, you want this number low but with gas it's different. You need to calculate the Ballance point. It uses the system capacity charts COP with your electric rates and compares to the cost of natural gas.
Every HVAC unit is different as each home is different and geographical location is different.
0360 is the auxiliary heat lockout.
This is going to prevent your auxiliary heat from running when the outdoor temperature is above this number. Wen selecting gas as aux it might not give you the 0360 option.
For your gas furnace, set it the same or slightly higher than 0350 because you don't want the HP and the furnace running at the same time. If the aux was electric the answer would be different.
Pg 33, 34, & 35 explaines it. Your installation book may be different.
Thank you so much.
I jut had a quote done by my HVAC company and they quoted a heat pump unit and they said that it had to be over 35 degrees to use the heat pump to supply heat. In this video he stand out in the snow and the unit is still operating.
I recommend finding a different company.
If they think a heat pump has to be over 35, they have absolutely no clue how a heat pump works. It would be highly unlikely they would size it, install it and set it up properly.
Find a company that can do a blower door test on your home and have air sealing done first. Some HVAC companies do this and also energy rators can do this.
The company you use should do an ACCA manual J heat load calculation
ACCA manual S to select a systems capacity to the heat load.
ACCA manual D for the duct system size.
That will not be a free quote but a service.
@@love2hvac It's amazing how much is out there online saying that heat pumps won't work below 35° (or there about).
At 7:25 did you say a 90 sec defrost instead of 90 minutes ?
good catch! it should be 90 minute not seconds (unless its in test mode)
You could also get a large tank of water and get the unit that works in water and even you get a layer
of ice on top the water below is still above 32 degrees and you should be able to get plenty of heat!
Interesting video Ty.
Not impressed though by either the installation or the equipment.
How can you have true humidity control without a variable speed compressor?
Hard to accept that heat pumps are efficient below a certain temperature.
Yes, there is a factor of "heat" at 14 degrees but transferring it into the dwelling is an uphill battle.
Cannot imagine this kind of heating solution is more efficient than conventional fossil fuel system.
Nowhere in the video did I compare heat pumps to fossil fuel systems.
They system is heating without auxiliary heat at 14F maintaining the temperature of the house. The only point it needed auxiliary heat is during defrost.
It's just the facts of a properly operating system no different than the facts of a properly operating gas or oil furnace that I also have video on.
In some places customers do not have access to natural gas or propane. They can effectively continue to heat the home.
Dehumidification has been used since the days of Willis Carrier long before variable speed compressors have been around. Variable speed compressors actually have more difficulty with humidity control as the coil temperature is higher on lower rpm.
Those drain pans under the water heater are useless in my opinion. My boiler broke out leaking and the water went about a foot from the boiler and flooded most of my basement. You need a totally enclosed box with a drain.
Not a knock against Ty, but lol, that Carrier clone system is probably making next to no heat in 14 to 8 degree F weather. And all those top air discharge systems will accumulate snow and eventually fail to heat after a while.
I am away right now but when I get back I can pull the data for that unit and I can show exactly how many BTU it was moving at that condition. It will be a little bit before I get back to it.
@@love2hvac And no cheating with heat strips either lol
@@love2hvac Any update on the performance info for those cold temperatures?
My Heat pump is very confusing. I have had gas furnaces my whole life.
Temp is 20-40 here now and my heat pump runs all the time, driving me nuts. ALL. THE. TIME. It is not quiet.
I don't understand why it just keeps cycling back and forth from Heat to Aux. Even when the room is at the set temp. My room temp never varies more than 1 degree. Often I see the Aux heat kick on WHILE THE ROOM IS AT THE SET TEMP. Why? There is a setting on my Emerson Sensei ST55 thermostat to tell it to cycle "slow" which is supposed to give a wider range of temp. I am ok with it shutting off for a while and dropping a couple degrees. But that setting seems to do nothing.
I do understand it might be easier/more efficient to maintain a temp rather than climb a few degrees all time but jeez this seems excessive.
But here is the weird thing. The internet tells me it is normal for my Heat Pump to run all the time when it is this cold. OK fine.....But when I walk past 19 other identical townhomes only 2-3 heat pumps are running at any given time. One is ALWAYS mine. Some of them I have never seen them running. WHy?
There is a lot to unpack here.
If it's at set point your auxiliary should not be cycling.
It is normal for a heat pump to run continually to maintain temperature at or below design conditions. However I don't know your design conditions or how well air sealed your home is.
You will probably need a heat pump specialist who understands the whole house system and not just a repair person for this.
Don’t another video of the same HVAC system running in cooling mode
my ears... 🥺
but thank you for this information!
Sorry about that. I will redo this video this winter!
Great explanation, but MAN, the overdriven audio was too difficult to listen to...please watch your gain when recording..WOW!
Yes sir you are correct 💯
I will be making a HP series and cutting this into segments with voice over.
I do HVAC not sound or video production. It was so cold the camera and microphone kept freezing up.
Most of my videos have audio issues as I don't have the funds to hire someone to correct them.
@@love2hvac Please read comment to the end, as I have a question for you sir.
No need to be hard on yourself over that. I would suggest clipping the microphone further down your coat for a lower gain. It is unusual to talk directly into a lapel mic, they are usually under the chin on a collar or even lower, but I know you had a winter coat on, a little more difficult..
I appreciate your efforts for a voice over, they are great in noisy conditions.
QUESTION: a very good friend of mine just had a complete Carrier, dual system from the flagship 'Infinity' line installed. So, this is the variable speed heat pump, and variable speed gas furnace/forced air system. The tech/installer set the temp at which the furnace takes over to 25 degrees.
Since I have an extended Mitsubishi split system as primary in my home, I am VERY aware of the defrost cycle. I warned my buddy about the defrost mode. He told me that the tech said there would be NO defrost cycle with the heat pump! I never heard of such a thing. We went round and round on it. I want to call his dealer and ask which Carrier model heat pump has a NO defrost cycle 😄..
I did my homework and reviewed all the information I could fine at the Carrier website, all I could find was the fact that, defrost cycles are set to 'regular' intervals and take place when the outside temp hits 32 degrees.
I also learned elsewhere that if the dew point is above the coil temp, you get frost buildup. Like to know what you may know about Carrier. I am still going to call the outfit because, they were one of my bidders when I was shopping for a new system and for particular reasons I won't mention here, they were not selected. Thanks for reading this through this LONG reply. 🙂
@@garysmith8455
With the older dual fuel (HP furnace combo) units, when the heat pump needed defrost the furnace just took over. It was because the furnace is in the air stream before the coil, so the heat from the furnace would be too much for the coil during defrost.
New systems should have the ability to run low heat of the furnace to allow defrost. I have not worked with a carrier dual fuel infinity in several years so I am not sure what they have programmed in.
Electric aux heat has the heat strips after the coil so it can run with the heat pump to assist during low capacity. The furnace even in low heat cannot assist because the heat is already the same or greater than the coil.
They typically don't want the coil. Before the furnace as the moisture and temperature can cause the furnace heat exchanger to rust out prematurely.
@@love2hvac Thanks for that information. Appreciate it.
I will see if I can get see if I can get some updated information
Guys the defrost will defrost in seconds NOT mins. I am a retired service guy so again the defrost is in seconds NOT mins. Easy mistake on camera to make.
A defrost can be as short as 30 seconds but it is typically a few minutes.
Rheem has a 8 minute maximum defrost. Carrier, Bryant and Goodman systems have a 10 minute maz defrost. Lennox Trane, Rheem, Nordyne have 14 minute maximum defrost time.
All with different demand and termination temperatures.
Now on test mode, the pins just speed up defrost. So 10 minutes become 10 seconds. So in test mode defrost would be just a few seconds. However it's best to speed up to defrost then remove the test pin jumpers so you can actually test the full defrost time .
April 3 2023 🎉
What sucks is when one of these is outside your bedroom window.
That's a poor install. they should not be installed near a sleeping space.
@@love2hvac Well, at least you can tell if defrost is working properly. You will hear it!
!
Okay this is false info. In the summer the insulated line is cold and the bare line is hot, don't let the suction in suction line trick you. In the winter time, the insulated line is warm and the bare line is cool. I'm just saying, cold air isn't coming out of my heat pump in humid 95 degree heat.
If the large vapor line (insulated line) is only warm in heat pump mode you have a problem.
That line is a hot gas line in heat pump mode.
Like the channel but dude use a drill. You can't survive on nut drivers alone
Easy/Heat buy your safety glasses Made in America all your p.p.e.for that matter stay out of WalMart wear your safety glasses.
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I don’t care for heat pump units
Just likefurnaces, they work great when done correctly.
I don't care for the politics but HVAC is technology be it gas, oil, electric, HP, Hydronics, Geothermal, radiant or anything else.
I see just as many misconceptions with gas heat as I do heat pumps. Just trying to educate.