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HVAC question

Old 12-12-2019, 02:40 PM
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I have a 1.5 ton 2009 heat pump that stopped working. Contractor looked at it and said compressor is shot and recommends new unit. The 2009 heat pump uses 1/4" refrigerant lineset (R-410a refrigerant). Contractor says he must replace lineset with 3/8" lineset as new heat pumps will not take 1/4" lineset. Replacing the 1/4" line with 3/8" will take quite a bit of work in attics, wall, and crawlspace. Is there any other alternative i.e. any modern heat pumps that could use the existing 1/4" line?

Also he wants to replace the heat pump with a Goodman unit. To me Goodman units are very loud. What do you think about noise level from Goodman units? Any quieter brands out there for 1.5 - 2.0 ton heat pump?


Thank you very much.
Old 12-12-2019, 02:45 PM
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Replace all the line set and yes you need 3/8 lq line , don’t buy Goodman/junkatrol as we call them
Old 12-12-2019, 03:22 PM
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I have a Goodman, it's about 11 years old. No issues besides replacing the capacitors every few years, but that's typical anymore, parts house caps are cheap and wear out more than the older ones did.

It is noisy though.
Old 12-12-2019, 04:22 PM
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The 1/4” line will need to be replaced for your new heat pump system. Kind of refreshing that some companies are doing it properly.

Most hvac contractors will just slap the new unit in and never mention it, till you start having issues with the compressor. Than they will charge you for the labor of a new compressor. Now you are calling whatever brand you installed a POS. No, your dealer was a POS.

So do it right and choose a good contractor that wants to do it right. Replace the line set with the proper size.
Old 12-12-2019, 04:40 PM
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I have an Amana propane furnace/AC. Made by Goodman. Best system I've ever had.
Old 12-12-2019, 05:04 PM
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Originally Posted by bsh102 View Post
The 1/4” line will need to be replaced for your new heat pump system. Kind of refreshing that some companies are doing it properly.

Most hvac contractors will just slap the new unit in and never mention it, till you start having issues with the compressor. Than they will charge you for the labor of a new compressor. Now you are calling whatever brand you installed a POS. No, your dealer was a POS.

So do it right and choose a good contractor that wants to do it right. Replace the line set with the proper size.
x2 if the new unit requires 3/8” instead of 1/4” liquid line then gonna have to run a new line set....

just replacing the outdoor unit or indoor coil/ furnace air handler also....????
Old 12-12-2019, 05:07 PM
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2nd opinion on compressor being shot?
Old 12-12-2019, 05:10 PM
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Originally Posted by Esuomm1 View Post
2nd opinion on compressor being shot?
That also....

What was supposedly wrong with that compressor??? can’t tell you how many “bad” compressors that were just bad capacitors, a lot of companies just want to do change outs....
Old 12-12-2019, 05:14 PM
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This thread made me go measure my 30 year old copper lineset... it is 3/8 OD copper.

I assume you guys are talking about OD as opposed to ID??
Old 12-12-2019, 05:20 PM
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Originally Posted by HeadHunt View Post
This thread made me go measure my 30 year old copper lineset... it is 3/8 OD copper.

I assume you guys are talking about OD as opposed to ID??
acr is referred to by od
Old 12-12-2019, 05:39 PM
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The lineset set is also going to be determined by size of the unit. Most line sets are going to be 3/8” liquid line x 3/4” suction line for generally 2-3 ton unit. Some are 3/8” x 7/8” if over 3 ton, some smaller 1-1 1/2 ton units may use 1/4” x 5/8” line sets. Has to do with refrigerant flow for size of unit...
Old 12-12-2019, 06:10 PM
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Originally Posted by lugoismad View Post
I have a Goodman, it's about 11 years old. No issues besides replacing the capacitors every few years, but that's typical anymore, parts house caps are cheap and wear out more than the older ones did.

It is noisy though.
I have a Goodman that was installed in 2006, mostly trouble-free, but I think I have a slow leak at my evaporator. The downsize of paper thin aluminum evaporators.
Old 12-12-2019, 06:11 PM
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Originally Posted by Poorbastard View Post
Replace all the line set and yes you need 3/8 lq line , don’t buy Goodman/junkatrol as we call them
Don't know about the newer ones,as My Janitrol/Goodman HVAC is 30 plus years old..A couple Igniters,Pre Blower Fan..A contactor and a Condenser Fan in all those years.

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