Go Back   EcoRenovator > Improvements > Geothermal & Heat Pumps
Advanced Search

Blog Register 60+ Home Energy Saving Tips Recent Posts Search Today's Posts Mark Forums Read

Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 01-26-14, 11:39 AM   #22
Master EcoRenovator
Join Date: Jun 2013
Location: USA
Posts: 543
Thanks: 6
Thanked 44 Times in 38 Posts
Default R410a

By the way , you all probably already know this . But , on the off chance some one does not , I will throw it in .

I read R410a is a blend / mix of 2 types / kinds of refrigerants . Instructions say to always charge with liquid ( tank up side down ) .

On my leak , I was fortunate enough to catch it while it still had a little pressure in the system . I valved off both service valves , so I did not have to worry about air / moisture entering the system .

Of course , it did when I re-flared the small line . When I vacuumed the system down , I was really only pulling a vacuum on the lines and the indoor fan coil unit .

I have read of the 3rd world method of just purging the lines with a little R410a gas . With the equipment , copper , insulation , tooling , etc. , plus the labor that went into the install . I was not about to take a chance on that method !

Besides , I had already made one dumb mistake ! :-( And , I had long ago acquired the tooling to evacuate the system .

By the way , my unit has only a 1/4" service fitting , on the large service valve . But not on the small service valve . I have since learned not to call them high pressure and low pressure valves / lines . I read that , in heat pump mode , the high side becomes the low side , and vice versa ?

I have read there MAY be a service fitting on the small line , inside the condenser cabinet ?

I am surprised , I figured the mini split would use the service fittings found on automotive R134a systems ? But mine does not .

God bless
WyrTwister is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 09:11 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Ad Management by RedTyger
Inactive Reminders By Icora Web Design