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How heat pumps work
Submitted by Green Deal Strategies on November 15, 2011 – 11:43 pm43 Comments
Wondering how Heat pumps work? Look at the video. Not rocket science but very effective and very energy efficient. Visit www.ipoolsupplies.com or http to see what heat pumps are available. Heat your swimming pool for less and use it for a longer period all year round.
Video Rating: 4 / 5
I show the basic components that are typical in heat pumps.
Video Rating: 4 / 5
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New Inverter type Mini-Split heat pumps will keep your home warm down to about 5 degrees F, depending on the model.
My Sanyo Mini-split (also called a Ductless) cools all summer and heats all winter.
Only on really cold days (under 8 deg F or -13C) do we have to turn on some back-up heat.
Paying 21 cents per kWh, & using about 10 kWh per day (during cold weather) is less than 1/4 the cost of heating with oil.
@prostreetcamaro Who wants to swim when it is 30 degrees F or -1 degrees Celsius…
much better use of energy than a fireplace, i know fireplaces are cozy but they also have a low effectiveness and are very bad for people with asthma and other respiratory problems.
very well done
I have the same picture on my mantle! Different frame though.
cute video.
@skittlesmonkey the expansion valve is an isenthalpic expansion, which means that the working fluid maintains its enthalpy energy. if you had a turbine the working fluid would lose its enthalpy
@skittlesmonkey Well the amount of energy reclaimed from such a turbine would be very small and it is not cost effective to put one in. The expansion valve is much cheaper and there are less moving parts to break or wear so it is also more reliable.
couldn’t have made it clearer really
I love this video , oh and I have something to ask you can I send you a message i want to download this album in downloadmusic .im
Heat pumps suck if you live in an area that gets under 30 degrees in the winter and that’s a fact.
NICE DONE VIDEO!
thanks so much
@skittlesmonkey the expansion valve is a restriction in the system that enables you to have a high pressure/tempreture side and a low pressure/tempreture side in the system!
is there a reason there use an expansion valve instead of something like a little turbine to harness the energy of the moment from high pressure to low, or is it just to make the mechanism simpler?
Yes!
thanks for sharing! grazieee
Awsome!!!!
HI DR Z ! RE: INSTALL SENSING BULD . THANKS FOR YOUR RESPONDED DR Z, IT MEAN A LOT TO ME.
@TheSam201077 he doesnt respond to any messages give up .lol its true ive asked several questions never got an response check with other ppl on youtube .i found some other helpful ppl…
@TheSam201077 You can replace the fixed orifice with a TXV. The sensing bulb needs to be fastened to the suction line. If the suction line if run horizontal then you need to install it at 4 o’clock on the tubing.
Hi DR Z ! can I replace a fixed orifice to a txv valve on the fan coil ., also how do you install the remote sensing bold on the suction line . THANK YOU SO MUCH DR. I am a residential installer , just want to learn more .
condensing unit?…maybe you mean the outdoor coil.
THANKS DR. I LOVE YOUR VIDEOS AND THE INTELLIGENCE YOU GIVE US ALL TECHS. WITH ALL THE RESPECT YOU MAKE MY DICK GET HARD. I KNOW I’M BEING SORCASTIC UPSS. SORRY BUT I REALLY DO ADMIRE YOU.
@MrTERRYD55 The accumulator could have accumulated non-condensables throughout the years.
@DrZarkloff Why do you always replace the accumulator?
@MrTERRYD55 I’d look for heavy rust. If you find any then you might want to check it for leaks. Also, I always replace the accumulator when I replace the compressor.
Dr.Z how would you determine if a a
ccumulator is bad in a heat pump condenser.
Dr.Z how would you determine if a accumulator is bad in a heat pump condenser.
@quickservicehvac Thanks
great video from Mr.Quick of Quickservice
What is the correct way to troubleshoot a reversing valve and what is the sequence of operation for two stage a/cs?????
@Mooseguy15 A heat pump is an air conditioning system that can cool and heat by use of the compressor.
Is a heat pump a compressor?
@thereceman The defrost thermostat stops the defrost cycle when the sensor notices that the condensing coil has a raised temperature.
does the defrost thermostat denergize the compressor when it senses high head pressure?
Yes. Some commercial heat pumps use solenoid valves instead of a reversing valve.
DrZ can we use some alternate solution instead of using reversing can we use also a solenoid valve??
Many new R-410a systems come with a separate service port on the suction side for this reason.
can you make a video on how to charge a heat pump in cold weather.. I hear you have to switch hoses etc and put one on true suction line etc.. With 410a
Answering my own question about blocked accumulators, much googling finds that yes, other people have had such a prob.
Since the accumulator is essentially just open (supposedly) tubing, the culprit is likely to be debris from another source lodged in the tubing.
That much debris suggests catastrophic failure in the near future, so it’s a case of repair costing more than replacement.
Just FYI.
Thanks for another informative vid, Doc Z.
Anybody want to comment on a Carrier hotel heat pump package that freezes from the bottom of the accumulator to the compressor?
It’s all 1/2″ tubing to the compressor, nothing else.
After much wondering I put an access valve on each side of the accumulator. Sure enough, over 100# drop, the accumulator is blocked.
Only one problem. How can the accumulator be blocked? There’s nothing in there to clog up. I must be missing something, but what?
You need a restrictor at the indoor coil and one at the outdoor coil. The restrictor can be a TXV, AXV, or any fixed restrictor like a piston or capillary tubes.