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Thinking your ecm motor is crapping out. Sent from my SM-N900V using Tapatalk

I just got a used one. $1000 with anchors and the 7/8 concrete sds bit. Sent from my SM-N900V using Tapatalk

Just use a mini split stand?

It tells you how much the factory change is on the outdoor nameplate. Too blurry for me to read. Looks like 258 oz? Or 16 lbs 1 oz

5 ton should be about right for your shop. You have about 20000 cu/ft. 20 btu per square foot at 8' ceiling. Which you almost have double plus lower r factor. Estimate 3000 sqft. X 20 = 60k btu=5ton

If it is similar to a mitsubishi, sanyo, fujitsu. You should have no problem changing the the blower wheel. Left side has a sealed bearing . Right side is attached with set screw to motor. A lot a screws in cover and sub cover. But I have replaced many without pumping system down.

No way

New charging hoses out gas when new. Probably your rise. Really should use vacuum rated hoses. They are usually black and micron rated.

Finish or last should stay below. Maybe I misinterpreted you description.

Read http://www.trutechtools.com/Vacuum-Training_c_1100.html

With pump off. Here is a pic of proper hose, pump, gauge location. Notice the gauge is at the service valve with an isolation valve to let the gauge read only the hard piping.

Need it to be 400 microns minimum. And maintain that.

Yes they are about triple.

Need to place gage at unit on core remover like this to get accurate reading. http://www.climatedoctors.com/Shop-by-brand/Appion/Appion-MGAVCR-Megaflow-5-16-Valve-Core-Removal-Tool?utm_source=google&utm_medium=cse&gclid=CNmQnoyavr4CFYcDOgodTzIAfA

They have built in pumps. They can only pump 18" of height though.

Boiler drain to acid neutralizer to condensate pump to outside.

Can do it. Need to add a mini split condensate pump at the drain and pump it to the pvc I line you run in th attic.

Triple evacuation*@#$— A method of evacuation that initially pulls the vacuum down to between 1,000 and 2,000 microns. Then a small amount of inert gas such as nitrogen is introduced into the system. The object is for the gas to absorb moisture from the system. The gas is then purged, and this...

Did he use a micron gauge? I hope. Triple evacuation is the correct way and the fastest. Few more steps but speeds it immensely. About an hour give or take to 400 microns.

Secondary on with call for heat, primary controlled from boiler on temp fall. Need more info on controls you have and heat source.