EcoRenovator - View Single Post - LG LMU245HV mini split 3 zone heat pump DIY

Xringer · 10-17-10, 10:19 PM

Wow!! That equipment looks a little familiar!!

Hook up that manifold, micron gauge and vacuum out the hoses.
I'm wondering how well your hose shut-off valves work.
At high vacuum, mine leaked a tiny bit of air inside, whenever they were operated. (closed).

I think the loss was on the pump side, since that's where the micron gauge
was installed. (which showed the loss).

When the valve was shut, the LCD read-out jumped up a bit,
and then when right down, as the pump was still running.

10-17-10, 10:19 PM	#15
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	familiar!! Wow!! That equipment looks a little familiar!! Hook up that manifold, micron gauge and vacuum out the hoses. I'm wondering how well your hose shut-off valves work. At high vacuum, mine leaked a tiny bit of air inside, whenever they were operated. (closed). I think the loss was on the pump side, since that's where the micron gauge was installed. (which showed the loss). When the valve was shut, the LCD read-out jumped up a bit, and then when right down, as the pump was still running.