LG heat pump dryer drum
Hi Alexander, what do you find interesting about the dryer drum in this LG dryer?
John
Hi Alexander, what do you find interesting about the dryer drum in this LG dryer?
John
Full Size LG Heat Pump Dryer DLHC5502*
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So, apparently we'll be getting a tear down of that thing soon!
(Link is to a short by Bens Appliances and Junk, you can just check his channel too.)
(Link is to a short by Bens Appliances and Junk, you can just check his channel too.)
mrlaundry1011
Well-known member
I thought the direct drive might have been a misprint for the dryers but seems not:
I don't know if anybody watched Ben's entire life steam, but from what I saw skipping through, I didn't see it reverse.
Which I mean very few full size dryers do, but if you already have seperate drum and blower motors AND are using a full size 3-phase inverter motor for the drum - why not reverse?!?
Which I mean very few full size dryers do, but if you already have seperate drum and blower motors AND are using a full size 3-phase inverter motor for the drum - why not reverse?!?
I think I did see it reverse, but not very often.
I saw the stream but I can't recall it reversing - although I could have missed it. The Korean site says it has 6 Motion, deep-learning and all that marketing speech. Maybe it's like certain European dryers and only reverses on some cycles. The Samsung Bespoke does reverse and for quite a while actually.
I'm sure there are plenty of videos out there. The Samsung Combo has a lot of Korean videos out there - none of which seem to have subtitles available. :/ I've come across one US one which wasn't all that informative.
I'm sure there are plenty of videos out there. The Samsung Combo has a lot of Korean videos out there - none of which seem to have subtitles available. :/ I've come across one US one which wasn't all that informative.
So his first video is out:
Take aways from that:
It isn't terribly slow nor as fast as I would have wanted to be.
Especially the speed mode is somewhat disappointing.
It certainly is worth it's price for 1300$ IMO - you get SO MUCH MORE dryer that if you spend 1000$ on a normal LG dryer.
But I was somewhat surprised and have a theory.
Given the drying times for a given load size, the usage per time and that in the tear down, you see that there is almost more empty space than heat exchanger, I am almost 100% certain they just used the compressor and heat exchanger from the 24" system they're selling over here.
They just switched out the drive motor and added a process air fan.
Looking at the process air fan, it does look relatively tiny back in there, hinting at about the same airflow target as on the 24" model.
Given it's only 820W but still requires 240V hints majorly at them reusing most of the components and just repackaging them in a way.
Given how much energy it saves, as long as you aren't relying on running 10 loads in a day, I would give it a full recommendation.
The Samsung equivalent might be more fit for your situation if you require ultra fast drying times since that apparently adds a 1400W heater into the mix to kick-start drying at the cost of a bit of efficiency and complexity.
But this is certainly a very good starting point IMO.
Take aways from that:
It isn't terribly slow nor as fast as I would have wanted to be.
Especially the speed mode is somewhat disappointing.
It certainly is worth it's price for 1300$ IMO - you get SO MUCH MORE dryer that if you spend 1000$ on a normal LG dryer.
But I was somewhat surprised and have a theory.
Given the drying times for a given load size, the usage per time and that in the tear down, you see that there is almost more empty space than heat exchanger, I am almost 100% certain they just used the compressor and heat exchanger from the 24" system they're selling over here.
They just switched out the drive motor and added a process air fan.
Looking at the process air fan, it does look relatively tiny back in there, hinting at about the same airflow target as on the 24" model.
Given it's only 820W but still requires 240V hints majorly at them reusing most of the components and just repackaging them in a way.
Given how much energy it saves, as long as you aren't relying on running 10 loads in a day, I would give it a full recommendation.
The Samsung equivalent might be more fit for your situation if you require ultra fast drying times since that apparently adds a 1400W heater into the mix to kick-start drying at the cost of a bit of efficiency and complexity.
But this is certainly a very good starting point IMO.
Ha, I had just copied the link to the video to post it here!
My thoughts exactly when I saw the size of the heat exchanger. All that empty space in there was surprising. Good on LG for making the coils accessible. Would like to see the cleaning in action.
Didn't you say that Speed Mode on your 24" LG didn't make much of a difference?
My thoughts exactly when I saw the size of the heat exchanger. All that empty space in there was surprising. Good on LG for making the coils accessible. Would like to see the cleaning in action.
Didn't you say that Speed Mode on your 24" LG didn't make much of a difference?
When I had my LG dryer, it barely did, yes. Like 15min or so tops, similar to the full size according to the video.
Same with the VZug I have.
I do think though some of that is down to what loads you use it on.
If you have a partial load of pretty dry clothes, water evaporates slower compared to full size loads of damper clothing. Only so much surface area and only so much water to evaporate, so actually moving the water out of the clothing becomes the limiting factor.
Same principle as drying a single shirt or 5 take basically the same time to dry, or how towels need longer to dry even if they contain the same amount of water.
And on heavier loads, even on speed mode, the max power of that heat pump is something like 600W. While that translates to something like 1500W of cooling power, it's only 2100W of heating at a COE of 2.5 for cooling.
If it runs at lets say 400W on normal or Eco, that's 1600W of heating. So only like 500W difference.
I do think though that the heater in the Samsung will more easily speed up drying regardless of circumstances.
It just adds energy, so regardless of load size, regardless of surrounding temps, it just speeds up that time until the heat pump can effectively condense water.
And doing the same calculation at 400W HP input power and 2.5 COE, with a 1400W resistive heater, you still get to 3kW total input heat at the same cooling power.
So 900W more positive heating.
Same with the VZug I have.
I do think though some of that is down to what loads you use it on.
If you have a partial load of pretty dry clothes, water evaporates slower compared to full size loads of damper clothing. Only so much surface area and only so much water to evaporate, so actually moving the water out of the clothing becomes the limiting factor.
Same principle as drying a single shirt or 5 take basically the same time to dry, or how towels need longer to dry even if they contain the same amount of water.
And on heavier loads, even on speed mode, the max power of that heat pump is something like 600W. While that translates to something like 1500W of cooling power, it's only 2100W of heating at a COE of 2.5 for cooling.
If it runs at lets say 400W on normal or Eco, that's 1600W of heating. So only like 500W difference.
I do think though that the heater in the Samsung will more easily speed up drying regardless of circumstances.
It just adds energy, so regardless of load size, regardless of surrounding temps, it just speeds up that time until the heat pump can effectively condense water.
And doing the same calculation at 400W HP input power and 2.5 COE, with a 1400W resistive heater, you still get to 3kW total input heat at the same cooling power.
So 900W more positive heating.
New full-size LG heat pump dryer
I watched the complete video and reply number 25. Interesting the guy did a little better this time but he still makes so many mistakes that it would drive you nuts if you didn’t know what you were seeing.
He constantly refers to regular dryers as a tumble dryer, but the heat pump dryer, of course is a tumble dryer and his wise crack at the end saying that Biden wants to ban tumble dryers certainly stupid.
Not sure why the manufactures are building these low power consumption dryers and requiring a 30 amp 10 gauge circuit to connect to, as we go more electric with buildings, it’s a huge waste of copper to put these heavy circuits in for something that’s drawing less than 1000 W. And worldwide copper prices are already very high because of the heavy demand for more copper as we make more electric cars and all electric homes.
I think the most impressive thing about this LG dryer is the direct drive system and they do seem to figured out the filtering system pretty well so that the evaporator and condenser won’t become so clogged up. It will be interesting to see how these hold up over many years.
His comment expecting these things only last 12 years is ridiculous, a dryer like this with a refrigeration system should easily last 20 to 30 years of normal use.
The operating cost is certainly reasonable. It’s almost down to the cost of running a gas dryer.
John
I watched the complete video and reply number 25. Interesting the guy did a little better this time but he still makes so many mistakes that it would drive you nuts if you didn’t know what you were seeing.
He constantly refers to regular dryers as a tumble dryer, but the heat pump dryer, of course is a tumble dryer and his wise crack at the end saying that Biden wants to ban tumble dryers certainly stupid.
Not sure why the manufactures are building these low power consumption dryers and requiring a 30 amp 10 gauge circuit to connect to, as we go more electric with buildings, it’s a huge waste of copper to put these heavy circuits in for something that’s drawing less than 1000 W. And worldwide copper prices are already very high because of the heavy demand for more copper as we make more electric cars and all electric homes.
I think the most impressive thing about this LG dryer is the direct drive system and they do seem to figured out the filtering system pretty well so that the evaporator and condenser won’t become so clogged up. It will be interesting to see how these hold up over many years.
His comment expecting these things only last 12 years is ridiculous, a dryer like this with a refrigeration system should easily last 20 to 30 years of normal use.
The operating cost is certainly reasonable. It’s almost down to the cost of running a gas dryer.
John
normal dryer sounds
How will this dryer sound? Will it sound normal?
How will this dryer sound? Will it sound normal?
