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Old 05-28-2024, 08:32 PM   #1
Bus Nut
 
Join Date: Jan 2023
Location: Carlsbad NM
Posts: 345
Year: 2002
Coachwork: Blue-Bird All American RE
Chassis: F204270
Engine: Cummins 8.3 ISC
AC, Copper pipe from external to internal

Hi All, I purchased two 18k BTU 48v Splits.
Direct from China... I will let you all know the outcome when that occurs.

My problem, as you would expect: getting information from the vendor in China is not easy.

The copper pipes came in roughly 8 ft. I need 15 to 20 ft. 20 would be better.

Any suggestions on what the Chinese fittings are? Of which I would guess are not American standards and are likely the same on all made-in-China AC splits, probably the majority of the small-name AC brands on the market.

Where to buy replacement full length?

Any suggestions would be greatly appreciated

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Old 05-28-2024, 09:06 PM   #2
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 19,007
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
most of the linesets are US standards unless it says otherwise.. did your units not come with the fitting nuts already installed on the outdoor and indoor units (or in a bag with the unit?) my 18K unit.. both my old chigo (china) and my fujitsu units boith use 1/4" x 1/2" linesets.. if yours came with an 8 foot lineset you can measure it.. refrigeration lines are measured in OD so you can simply measure them with your calipers for size.. if yur lines are pre-flared with the nuts for both indoor and outdoor then you can cut the flare off and retrieve the nuts, buy bare line and make yoyur own flares.. (i usually make my own anyway as chinese linesets are notorious for crappy flares... i also use NyLog blue on every flare i set.. I dont have leaks..




at least im guessing you received an 8 foot lineset with them and so it would have the necessary terminations..
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Old 05-28-2024, 09:08 PM   #3
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 19,007
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
you can buy bare lines from any HVAC supplier.. supplyjouse dot com, gotductless, AC wholesalers, etc sell the bare line that you can cut and flare... it will be both pipes insulated (which is what minisplits call for )
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Old 05-28-2024, 09:16 PM   #4
Bus Nut
 
Join Date: Jan 2023
Location: Carlsbad NM
Posts: 345
Year: 2002
Coachwork: Blue-Bird All American RE
Chassis: F204270
Engine: Cummins 8.3 ISC
Hi thank you. Yes came with 8 ft.

I will check Your suppliers listed thanks.
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Old 05-29-2024, 08:16 AM   #5
Bus Geek
 
Join Date: May 2014
Location: West Ohio
Posts: 3,775
Year: 1984
Coachwork: Bluebird
Chassis: International 1753
Engine: 6.9 International
Rated Cap: 65
Quote:
Originally Posted by cadillackid View Post
(i usually make my own anyway as chinese linesets are notorious for crappy flares... i also use NyLog blue on every flare i set.. I dont have leaks..
I quoted this, because it's the secret to a successful DIY mini-split install.
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