The 'spare parts' A7 that I got from a forum buddy, does not have the external loop.
So, I will need to add on some connectors before it can be hooked up to a remote HX.
I saw those cut-off 1/4" lines, but didn't I guess it didn't click they were double walled.
I assume that was to get the two-walls of isolation to meet 'code' in some locales.
My junk pile contains a couple of Taco circulation pumps.. And, I have a brand new SS HX.
But, right now, my old A7 is still running fine.. It's been running a lot this year,
because of all the cover-cast and cloudy days we've had..
Maybe I'll be needing a new heat pump soon, and I would like to use this HX..
Cheers,
Rich
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My hobby is installing & trying to repair mini-splits
EPA 608 Type 1 Technician Certification ~ 5 lbs or less..
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