Sail life - Technautics CoolBlue refrigeration & varnishing - DIY sailboat project
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- Опубліковано 2 лип 2024
- This week I get Athena's fridge up and running using Technautics CoolBlue. That's going to be one spiffy fridge! Technautics website: www.technauticsinc.com/
Drake Paragon (Drake and Mo) UA-cam channel: / drakeparagon
Their CoolBlue video: • Our Fantastic Fridge a...
00:00 Introduction
00:30 This week's goal
01:40 Technatics CoolBlue
03:10 Kitchen island
04:17 Holding plate
05:21 Compressor
06:20 Mounting location
08:53 Installing the holding plate
13:44 Insulating copper tubes
14:20 Wiring
15:33 It's alive!
17:02 Oh glorious sanding
17:44 Last coat of varnish
18:20 Cya!
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![How Does Boat REFRIGERATION (& A/C) Work? [Capable Cruising Guides]](/img/n.gif)
@Sail Life, sorry for this being my first comment on one of your videos. But as an HVAC/R Tech I have to say you did a decent a job, however, you're going to see a minimum of a 5% efficiency loss do to insulating both the low pressure return line, and the high pressure feed line. Insulating the low pressure line does two things, it prevents condensation and more importantly decreasing the amount of heat the low pressure line absorbs, reducing the amount of work the compressor and evaporator have to do to remove the heat. Insulating the small high pressure line, decreases the amount of heat the system expels into the air, increasing the amount of work the compressor and evaporator have to do. Insulating them in the same jacket, just doubles in the inefficiency by creating a closed heat loop the will build up the longer the system runs reducing efficiency even further. But otherwise you did a good job.
Right on!
I am not a tech but that what I was thinking👍👍
I agree, having worked with HVAC, I cringed when he wrapped both together.. it will work, but the compressor may come on more then it needs too..
Hope he sees this.
@@cnc75adventures49 My thoughts also!
Insulating both pipes together seems like mistake to me, in fact, isolating them from each other is your ultimate goal. It is basically heat pump, temperature difference in lines defines the efficiency.
Don't wrap both hoses into the same insulator, that way you are creating a "temperature short-circuit", with a lot of energy loss due to heat exchange outside the refrigerated box. Basically the cold fluid get heated before reaching the plate, and the heated fluid returning to the compressor get refrigerated again between the plate and the compressor.
I agree
What he said
You want the cold to stay cold and the hot to lose heat (by heating your boat) that way the compressor works less.
Definitely do not wrap both hoses together!
You have to separate them if you want to have an efficient system. Insulate the cold one for better efficiency and to avoid condensation. Do not insulate the hot one for better efficiency.
Refrigeration doesn't work like that. As a matter of fact the tube from the compressor & aircooled condensor to the holdingbox (the evaporater) is filled with WARM liquid. The return tube to the compressor is filled with COLD gas (not liquid!) If you wrap both hoses to the same insulator you even improve the efficiency of the system because the liquid before the expension valve is undercooled. Also you can use the eveporator more efficiently because you don't need to worry about remaining liquid in the returning tube to the compressor (a compressor is a gaspump, not a liquid pump!) But to do this you need to make adjustsments to the thermostatic expension valve on the evaporator. Down-side of this is that the compressor uses the cold return gas to cool itself, and because you mount it under the floorboards I would follow instructions and don't insulate them together. Note here: the insulation on the return tube (suction tube) only is there to prevent condensation; it has nothing to do with energy loss.
A suggestion. Mount a small computer fan to act as an "exhaust" for the compressor box. Air-cooled is great but requires air flow. In several restaurants I worked for, we mounted the air cooling outside the restaurant to improve the unit's efficiency. Just a thought. The downside is that the exhausted warm air will flow into the galley area. Merry Christmas, Happy New Year.
If you look at the back of any domestic fridge inside the pipe foam you will see that the capillary line is soldered the full length of the suction line. The purpose for this is for heat exchange .If you look at a Psycrometric chart you can see that it is a boost in efficeincey . On TX valve systems like yours they sometimes install a heat exchanger to the system. Just taping your liquid line to your suction line and wrapping them together with foam is sufficient . Cheers
Besides the insulation issue, it would be good to install an air ventilation vent to the compartment holding the compressor. The lower the temperature of the air reaching the heat exchanger, the higher the efficiency. Love the size of that fridge.
agreed
Great work Mads,
Short comment: don't insulate the high pressure line, and try to thermally separate the two lines.
Long comment: the refrigerant coming from the compressor will be hotter than room temperature. The more heat it sheds on the way into the freezer, the faster and more efficiently it will cool your box. If it sheds its heat into the return line, the compressor won't be able to cool it down as far.
Also, the efficiency of the compressor is highly dependent on how much cool air blows over the radiator. I think that location may get hot when the compressor is running. Might want to check out the compartment temp when the unit has been running for a while.
Happy holidays!
Anecdotal support; a boat I crewed on recently had a cool blue system, compressor mounted under the galley sink. It had a seagull water filter for drinking water. We had warm drinking water. The owner has since increased airflow to the cabinet.
I can’t wait for the sailing videos. Merry Christmas.
Happy new year Mads!! Can’t wait to see what is in store this year for your channel.
Good job looks great man
Really interesting. Thanks for sharing with us once again 😀🙏
Thank you for taking time to have all of us along! All my best for 2021
Well done. That was such a cool episode. Have a Happy New Year
Hi , Another fine install ,made simple . Have a Happy New Year Mads ,stay safe .
Merry Christmas and Happy New year...MADS.good job on your boat!
Merry Christmas Mads, great video again.
love the dice in one of the portholes
I have the cool blue on my boat, great system. And yes you will want to add more ventilation than that, might be fine in the winter but when you get down where the water is warmer, it will really hinder it.
In the summer if I have been doing a lot of motoring and it is a hot day mine has to work pretty hard to keep up, so I pull the engine cover and that makes a huge difference.
It is however a great system, mine quit on me and Rich called me on a sat phone from Mexico on a Sunday and helped me get it working within an hour of me sending the email! Met him at the Seattle boat show, great guy!
How would you know that they would want to add more ventilation for a warmer climate? You've only been sailing for two + years, and have never had your boat out of the northern waters of Puget Sound.
Boat looks great in the water, love seeing everything coming together
Ending this year with some glorious sanding!Happy and healthy New Year to you
Merry Xmas & a great New Year to you and Ava
Merry Christmas from Canada - Love your channel.
Nice video, merry Christmas and a happy new year
Nice job!!!
Excellent!
Merry Christmas to you and Ava. Thanks for all your videos - even on Christmas. So appreciated! Best wishes for the New Year ..
Merry Christmas and Happy New Year, Mads!
Merry Christmas Mads, awesome job as usual. Progress is really marching along. Andy UK
Loved mine. Great customer support.
Mads , Thank you for a year of great videos Athena really looking good and very interesting in the systems you've installing most recently . Well Done and Happy / healthy New Year from San Diego
MY CHRISTMAS WISH HAS COME TRUE!!!! GLORIOUS SANDING HAS RETURNED!!! Thank you Mads! Happy new years!
Happy New Year to you and Ava and best of luck with the project. Stay healthy and we'll see you next week.
Congratulations Theo on getting the fridge up and running. Fantastic little unit. Happy new year to you. Australia
Merry Christmas to you too! Wishes of smooth progress next year and may Athena be ready for you and Ava in time!
Happy New year!
Happy New Year Mads and Ava.
Merry Christmas and a Happy New Year, --- Peter, New Zealand.
Hiya, Happy New Year to you both... Stay safe...Steve...
Happy New Year Mads.
Glad to see another cool blue customer.
Lovely
Happy holidays.😁
Merry Christmas
You are very talented I've been watching your channel for years I' wish you and Ava merry Christmas and a Happy New Year
I have been waiting for several years for the upcoming videos 😄 Gadgets time ❤️ Happy new year 😘
Great job, step by step the closer you get. Can’t wait til the distribution panel and electronics are in..
Merry Christmas to both Ava and you Mads. Wow, heating and cooling = warm conditions to work in and cool beer! Yay. See you next year.
Love the fuzzy dice!
We always giggle at "[...] a somewhat extensive refit [...]". Thank you for your videos and documentary!
Marry Christmas Mads and a Happy New Year! Amazing video and I like the technical stuff you put in the boat. Thank you for sharing.
Cheers
I like the old Filter canisters for spacers. Creative use of resources.
Merry Christmas Mads. I can’t believe how fast Eva is set to arrive. You are so calm about all the work that needs to be accomplished between now and then.
"Firmly planted in overkill territory" is where you started Mads. You are now approaching ultimate strength territory. Thank you so much Mads for a year of wonderful projects, glorious sanding and truly spiffy videos. Take care and wishing you and Ava a very joyous and productive New Year.
Merry Christmas 🎄
God Jul och Gott nytt år!`
Happy New Year Mads!!
It isn't Christmas without some glorious sanding 😂Merry Christmas Mads 😊👍
Have a great Christmas Mads. Lovely job as usual :)
Merry Christmas good sir.
Best wishes for 2021 Mads..
You the man homie! Keep at it!
I hope you have a Happy New Year....👍🙂
wow! that boat has some serious freeboard.
Not sure if I have said that before but I really enjoy the cool calm and collected way these videos document the refit of your boat. Also, there is a significant learning effect for me, maybe not the details because they are different in any other boat, but the some of the basic principals how things working on a boat. I am very curious how all of this will be once the boat is finished an ready to go. Merry Christmas and good luck in the new year with your refit. Christoph
A few points.:
1. Follow the installation instructions regarding wrapping forward and return lines together. From my recollection, sometimes the liquid line in refrigerators is actually located inside the gas return, so some designs obviously expect close thermal coupling between the lines. Bottom line is, the amount of thermal coupling is one of the design parameters and should be addressed in the instructions.
2. Vibrations in those copper lines might induce wear at contact points. Insulating the lines together may be fine but they perhaps should only be in contact where they are strapped together, not where they might randomly rub each other.
3. The evaporator in the bilge may be cooled by the water outside the hull but you may want to duct the warm air from the fan so that it physically passes along the hull. This will ensure the air gets cooled.
Thanks for your presentation. I do enjoy watching someone else work!
Happy New year
Cheers
Great episode, and very happy holidays to you!!!!!!!!!!!!!!!! so glad to see the update although it would have been reasonable to take some time off, but selfishly I must say I am glad you did not!!
hi the boat is looking very good
Oh, a Christmas Present from Sail Life - I thought you would take some time off Mads. Thanks for the pleasant surprise and Merry Christmas to you, Sir.
Thank you Mads for another great episode - your work is inspiring!!
If noise ever becomes an issue, it could be a fun project to program a timer into the fridge compressor so that it only/mainly runs at night. Best wishes!
Love the cool blue. Very nice install. Best wishes and happy holidays Mads. Stay safe.
Best wishes from a 🇨🇦 fan.
Seasons Greetings Mads. That seemed like a nice easy setup. The fridge on my C&C 33 quit last season. This looks like a nice replacement I will have to look into. Great work as always. Looking great.
I installed the Large “O” icebox conversion refrigerator on my 35 foot Jeanneau eight years ago. No cold plate taking up space in the fridge. Cost around $700 on sale at Defender. Comes complete and ready to install. The BD50 Danfoss variable speed air-cooled compressor is quiet and efficient. Super dependable.
I hope you had a great xmas already looking forward to the next video
Merry Christmas Mads.
Merry Christmas Mads! I'm sure you are very excited to have cold beer aboard the boat :)
Cheers 🥃🎄
That loop.is actually a good thing as it will act like a trap and help create pressure to force the oil back to the compressor from the plate.. So its a good thing, not needed on the smaller tube.. Hopefully you have a small vacuum pump, it will be a good keeper should you need it in the future..
Merry Christmas 🎄 ⛄ ;)
Watch this show EVERY sunday! Don’t own a boat and won’t own one in many many years but I find everything Mads does entertaining.
What you should have gotten was a copper tube bender used by HVAC service techs and plumbers. They are fairly inexpensive and easy to use, and you can make some tighter bends without kinking. Note for the future?
Merry Christmas great job again 👍
Merry Christmas Mads.
Three months left on the 9 to 5 job, other three for Ava to move over...
I'm pretty glad watching your plans coming slowly but surely to life!
Ceep up the awesome work.
Happy holidays...
Wow, this (Athena) is a complicity new boat now ! Very nice!
Maybe you should install boat stabilizers on your boat? No , seasickness any more!!!
I had the CoolBlue for many year on a previous boat and it is awesome, quiet and efficient.. GOOD CHOICE.
Looks great!
Mads you do it mads way that's the right way till you do it a different way!!! I look so forward to your videos since my boat's done
Excellent work, as always, and great to see progress coalescing on a finish :-)))
Just a thought re the assumed absence of water in the bilge beneath the compressor - water usually gets in here from sources such as wet weather gear, (sails of course on a race boat), spillages, overflow taps, hatches left open etc and that bad day when water comes down the companionway, directly, so it may be worthwhile at least coating the elecs to prevent/limit water ingress or possibly a custom enclosure - sounds tricky, but you always do tricky so well. Cheers and good wishes for 2021!!!
Merry Christmas and Happy New Year to you and yours Sir.
T.
Hi Mads, great video as always! While watching the video I.had the same thought as some people below (as Jason has already explained it very well, I will not repeat the full technical reason) regarding the insulation of the feed and return line of your new fridge design. I am an engineer, and in my job I sometimes need to dimension and design heat-exchangers.
This is obviously a mistake that can happen to someone not familiar with the, admittedly, sometimes rather complicated and tricky desing of such systems. AND this shall not take away anything of the otherwise fantastic and well thought through approach you take on rebuilding your boat and building your dream. I salute you on this, because I recognise that this is more than a marathon, this is an ultra-marathon at its finest. It takes a special person to maintain the positive spirit and the quality of work throughout these years (and yes, I am following you each sunday for the last "i dont know how many years").
I will end this by also wishing you relaxing holidays and a happy new year. 2021 will become very exiting on your channel!!!!
Merry Christmas, and Happy New Year, Mads and Eva,
Merry Christmas and a happy new year Mads.
Nice job and happy new year from France
Ava's boat is coming along nicely, lol. Thanks for sharing!
Great video Mads, Merry Christmas and Happy New Year to you both. Don't get caught out by hurricane Bella like we did... Condenser unit looks very large but seems very effective and keeps heat in the boat - useful - compared to through hull heat exchangers.
Personally I would have put the cold plate inbetween the outer plywood case and resin liner that you made.
That way You have maximum space in your fridge and you wouldnt have to wory about groceries banging into the plate or the thermostat in a big sea.
The boat on the other hand is starting to come together and Athena looks great. .... ⛵💕🌠
Merry Christmas Mads
Furry Dice Mads? Spot on 😀👍
Merry Christmas and Happy New Year to you Mads! Haven't heard anything about or from Ava - hope she is doing well.
Merry Christmas Mads. A warm boat and a cool fridge - everything else is a bonus.