Wish I had an an instructor like you during my apprenticeship. I was not trained to do things properly like you do (flowing with Nitrogen, using a micron guage, adding into the high side as a liquid, etc.), now I'm a journeyman and I'm just starting to learn and only because of online videos.
Manufactured home units don't have service valves, because all of the components in the system are "pre-charged" which makes it easy for the mobile home installers to connect the system during installation without needing to adjust the charge or pull a vacuum. additionally, no torch is needed because of the quick connect style fittings on both ends. One more point even if that unit had service valves you can only "trap" what is in the condenser, you can't perform a pump-down on a microchannel. One additional point, there are coils on the market from ADP, ALLSTYLE & Mortex that are specifically designed to fit those mobile home air handles and gas furnaces
Subbed, brother, thanks for creating this channel. The information your sharing and the way you go about creating your videos , my MOMMA could go rip out and replace OR maintenance any AC unit!!! 😂😂 👍👍👍
I have brazed with oxygen and acetylene on steel. I Did not understand the turbo torch setup with one tank, acetylene or mapp gas? How did you have enough heat to braze? Was the nitrogen flowing in side the copper pipe to replace oxygen ? Or did the nitrogen act as a shielding gas? Enjoyed the video, here to learn.
So the filters do go over the fins of the evaporator coil? Because I live in a mobile home and have done that for years...then a friend of my brother (he's not an hvac tech) said the filters go below the coil. I haven't messed with it. Bur I did open it and didn't see a place for a filter below the coil and above the blower
Any chance we could get some "intro" on this job? Specifically, what led up to the homeowner's needing an new coil? Was it leaking? Was there a chance of braze-fixing the leaks? Some specs on the system and the evaporator? (Aluminum is better for leaks than copper? Interesting -- I always thought people went to aluminum just because it was cheaper.)
Min 4:00 and 27:00 Could you add a pencil-and-paper diagram at this point to show what's-going-where? (It would make it easier to keep these hose connections and purgings straight in our head. ) Thanks for making. [PS: for a good example of video segues to pencil-and-paper, see Gendron HVAC-R.] [PPS: great use of headcam!]
Have a 18 year old 3.5 ton RHEEM heat pump still working but not as efficient as before. Looking to DIY by purchasing a Goodman 3.5 ton heat pump condenser and evaporator coil and install it into my existing air handler. Does this sound feasible?
I'm looking to instal a mobile home evaporator coil in a regular residential due to the size of the plenum . Would you say that there's a difference between the mobile ones and residential other than the size? I'm looking to get a 3 ton
I’m not getting much from at least one vent or more . Room stays warm. Besides chewed through damaged air ducts what should I look for ? Bad dampers that are in the ceiling? I tried them switching to open / closed but almost no difference in air coming out
Did you place the filter(s) on the coils themselves or the door panel? My MH (recently bought) didn't have any filters at the furnace and we have down flow coils without cabinet and I am attempting to buy the correct filters before AC season. Thanks
Do you think it would be safer if used less pressure to test incase you had less standing pressure in the condenser and bad valves that would allow nitrogen go into the condenser and then would have nitrogen in your refrigerant
Great video!! Keep up the good job Dave!! I noticed that you did not put any sealant below the base of new evap coil when you put it in the housing. Are not we supposed to put some? 🙏👍
Do you not like using mobile home coil aspen or your other mobile home coil or you trying to increase efficiency of the outdoor unit by using bigger coil just curious
Sir can you give me your honest expert opinion!? When is it necessary to replace the entire HVAC System? My evaporator coil was rusted and leaking but the HVAC guys were pushing into replacing the entire system. My common sense was telling to just replace the evaporator and keep it moving. Just like a car, you dont buy a new car when something breaks down!
I noted at about 19minutes your turbo torch tip was like an 11 or a 14… way too big. Also the gas pressure wasn’t open or the tank wasn’t full because it’s whistling and you’re burning the tip, it’s turning yellow hot at the tip. You may need to clean the tip…. Drop down to a 5.
Should use leak detector, aka bubbles to test for leaks also let evacuation stand to see if it raises above a reasonable level and also should always add refrigerant in a liquid form. When the system is off and breaking vacuum add to liquid side of system when system is operating add to suction side. Also should find target superheat not just set to 10 degrees.
Hello, Dave. I'm a relatively new subscriber and am interested in learning how to clean evaporator coils inside my manufactured home. My unit is about 3 years old, and as you already know, there's not a lot of space to work with. What would be the best approach? Any insight you can provide would be greatly appreciated. Thank you, Sir.
Since your furnace is a down flow, it would be real easy to clean, no debri will be ok the bottom of that coil, only the top. So get the big debri out like I did in my last video with a metal coil comb, then spray it down with evaporator coil cleaner and you’ll be golden 👍🏼
Wish I had an an instructor like you during my apprenticeship. I was not trained to do things properly like you do (flowing with Nitrogen, using a micron guage, adding into the high side as a liquid, etc.), now I'm a journeyman and I'm just starting to learn and only because of online videos.
Thank you so much for your videos. I watched every second f it, and took notes as well. Can't thank you enough for sharing your knowledge.
You do a great job of describing the whole process
Very informative, this is exactly what mines looks like and I am having to replace it
I loved all your videos, Dave. Keep these videos coming buddy. Thanks
Thanks man!!
@@diyhvacguy......Oh come on,.....😅😂 don't let grass hopper Scare you
Liked the video from the beginning, because I know you goin to put up valuble info... thanks for sharing your knowledge.. Houston Tx.
Thanks so much for the support! Cheers
Seriously! Thank you so much for your videos! Your a godsend!
Manufactured home units don't have service valves, because all of the components in the system are "pre-charged" which makes it easy for the mobile home installers to connect the system during installation without needing to adjust the charge or pull a vacuum. additionally, no torch is needed because of the quick connect style fittings on both ends. One more point even if that unit had service valves you can only "trap" what is in the condenser, you can't perform a pump-down on a microchannel. One additional point, there are coils on the market from ADP, ALLSTYLE & Mortex that are specifically designed to fit those mobile home air handles and gas furnaces
Subbed, brother, thanks for creating this channel. The information your sharing and the way you go about creating your videos , my MOMMA could go rip out and replace OR maintenance any AC unit!!! 😂😂 👍👍👍
Excellent video n have a good day !
I have brazed with oxygen and acetylene on steel. I Did not understand the turbo torch setup with one tank, acetylene or mapp gas? How did you have enough heat to braze? Was the nitrogen flowing in side the copper pipe to replace oxygen ? Or did the nitrogen act as a shielding gas? Enjoyed the video, here to learn.
Nice work boots.
Can’t wait to see pressures after releasing 410 back in system
That coil is sparkling clean compared to my apartments Black n loaded with hair. Having lung issues.
I recommend Harbor Freight tube bender, Doyle brand.
So the filters do go over the fins of the evaporator coil? Because I live in a mobile home and have done that for years...then a friend of my brother (he's not an hvac tech) said the filters go below the coil. I haven't messed with it. Bur I did open it and didn't see a place for a filter below the coil and above the blower
👍👍👍👍👍👍👍👍
Really good video .
Min 2:52
Could you have purged the yellow hose at the recovery tank too?
Any chance we could get some "intro" on this job? Specifically, what led up to the homeowner's needing an new coil? Was it leaking? Was there a chance of braze-fixing the leaks? Some specs on the system and the evaporator? (Aluminum is better for leaks than copper? Interesting -- I always thought people went to aluminum just because it was cheaper.)
Min 4:00 and 27:00
Could you add a pencil-and-paper diagram at this point to show what's-going-where? (It would make it easier to keep these hose connections and purgings straight in our head. )
Thanks for making.
[PS: for a good example of video segues to pencil-and-paper, see Gendron HVAC-R.]
[PPS: great use of headcam!]
On the old airframe, is it normal to place the air filter like this directly on the evaporator?
Did I miss something regarding the "burping" of the lines? Didn't you "burp" the wrong end, and you left air in one of the yellow hoses two times?
Have a 18 year old 3.5 ton RHEEM heat pump still working but not as efficient as before. Looking to DIY by purchasing a Goodman 3.5 ton heat pump condenser and evaporator coil and install it into my existing air handler. Does this sound feasible?
If you can’t afford to buy a new coil of fins can you repair missing Finn’s by soldering or welding new fins on there?
I'm looking to instal a mobile home evaporator coil in a regular residential due to the size of the plenum . Would you say that there's a difference between the mobile ones and residential other than the size? I'm looking to get a 3 ton
I’m not getting much from at least one vent or more . Room stays warm. Besides chewed through damaged air ducts what should I look for ? Bad dampers that are in the ceiling? I tried them switching to open / closed but almost no difference in air coming out
Can you pressure test with regular compressed air?
Did you place the filter(s) on the coils themselves or the door panel? My MH (recently bought) didn't have any filters at the furnace and we have down flow coils without cabinet and I am attempting to buy the correct filters before AC season.
Thanks
Do you think it would be safer if used less pressure to test incase you had less standing pressure in the condenser and bad valves that would allow nitrogen go into the condenser and then would have nitrogen in your refrigerant
I might be overlooking it, but what company makes the aluminum evaporator coils used in mobile homes?
Did this have a TXV or piston?
(re: setting for superheat (min 28:00) -- I think that means "piston")
Sorry -- question answered at min 29:00.
Great video!! Keep up the good job Dave!! I noticed that you did not put any sealant below the base of new evap coil when you put it in the housing. Are not we supposed to put some? 🙏👍
You could if you wanted to but the air (if any) that goes under the coil is very minimal.
And thanks for the support!
Hey can you explain why you chose a coil with a piston instead of a TXV? Thank you
Why are there filters on the sides on the fins????
Love your videos! Where would you recommend a DIY'er purchase the evaporator coil or other parts?
Great video!! Thanks
Do you not like using mobile home coil aspen or your other mobile home coil or you trying to increase efficiency of the outdoor unit by using bigger coil just curious
Where do you buy your parts from (Evap Coil)
I don’t see air filters on the coils. Is there one on the intake grate?
Correct
7:05 This is how our new one not even 2 years old looks!! Were were fooled? We paid 8K for a new evaporator coil and compressor!
Min 16:00
Could you expand on what happens here? This is a nuance of brazing, but we can't see what you're referring to.
Sir can you give me your honest expert opinion!? When is it necessary to replace the entire HVAC System? My evaporator coil was rusted and leaking but the HVAC guys were pushing into replacing the entire system. My common sense was telling to just replace the evaporator and keep it moving. Just like a car, you dont buy a new car when something breaks down!
You can’t pump that condenser down anyway. It’s micro channel it won’t hold the charge
Interesting.. how you doin bro? Thanks for the comment.
@@diyhvacguy doing well thank you
I hope you know this guy, you over there flip flopping it up. Doesn't seem too professional to have your toes out there!! LOL
It was at my grandpas house so I wasn’t worried about being all professional haha
nice vid , wow they new a new unit all rust i bet they barely change filters, and did you installed king valves?
I did not. I just recovered the freon into a tank, did the repair, then recharged the system. Yea the old coil was pretty nasty!
What size turbo torch tip did you use
I believe it was an A-14
I noted at about 19minutes your turbo torch tip was like an 11 or a 14… way too big. Also the gas pressure wasn’t open or the tank wasn’t full because it’s whistling and you’re burning the tip, it’s turning yellow hot at the tip. You may need to clean the tip…. Drop down to a 5.
Dave where are you located?
Utah
@@diyhvacguy ok
Why are you using a hard start instead of soft start? Thanks
You didn’t purge your hose at recovery tank. 410 is garbage now:(
7:20 Put on shoes when you are working.
Should use leak detector, aka bubbles to test for leaks also let evacuation stand to see if it raises above a reasonable level and also should always add refrigerant in a liquid form. When the system is off and breaking vacuum add to liquid side of system when system is operating add to suction side. Also should find target superheat not just set to 10 degrees.
Nice
Nice OSHA approved flip flops 😂😂😅
🤣🤣🤣 it was at my grandpas house lol
Good men ac are so bad have to replace the AC Handler condenser every two and a half years
Dave you are not working in flip flops sandles ,i would have ask you to go home and put boots on .❤
Hello, Dave. I'm a relatively new subscriber and am interested in learning how to clean evaporator coils inside my manufactured home. My unit is about 3 years old, and as you already know, there's not a lot of space to work with. What would be the best approach? Any insight you can provide would be greatly appreciated. Thank you, Sir.
Since your furnace is a down flow, it would be real easy to clean, no debri will be ok the bottom of that coil, only the top. So get the big debri out like I did in my last video with a metal coil comb, then spray it down with evaporator coil cleaner and you’ll be golden 👍🏼
@@diyhvacguy Thank you, Dave. I appreciate you taking the time to respond 👍