I always keep the suction pressure from the last sytem I worked on in my hoses and manifold; I drain the high side back into the system through the low side so whatever that pressure is stays in the gauges.
As far as bleding the 6" extension, I use valve core depressors a lot of the time, so when I attach the hose to the depressor I can bled some of the pressure from the gauges at the depressor. This also saves freon burns in those tight places.
I don't have half the experience of many of you, but I actually use NRP low loss fittings and YJ ball valves. I trust the ball valves a lot more. I read somewhere that someone didn't recommend leaving your manifold full of gas. It slowly stresses out the hoses or something.
the ball valves you put at the end are greattt
like someone said earlier
you can, purge/bleed right to that point!!
I have an assortment of ball valves, low-loss fittings, adapters, etc. and it seems like the yellow jacket ball valves are the ones I consistently go for.
It's a Mcquay Microtech 200 controller - they don't need calibration!!!!
I thought you were mad at me because I work for the big non-union meatball now!!!
it is the exact same controller!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !
in the first menu after password, mode-occupied/unoccupied/remote start
next item calibration
but ofcourse that was for a varicone vane controller..
i would live on the edge and guess there is NO varicone vane for duct static control?? LOL
but it is the exact same board
i have 4 of them in my truck
just grabbed one and compared it to your avatar
how is work????????????????????
What about blow-back from the ones with the ball valves vs. the low loss ones - like when you're unscrewing the hi side hose from the Shrader?