Buy Mastercool 90066 Air Conditioning 6 CFM Vacuum PumpMastercool 90066 Air Conditioning 6 CFM Vacuum Pump Product Description:
- Repair Only
Product Description
Mastercool 90066 6 CFM Vacuum Pump.Single Stage.Free Air Displacement: 6 CFM.Ultimate Vacuum: 75 Microns.Motor: 1/4 HP.Pump Speed: 1720 RPM.Electrical Specs: 110 V / 60 HZ.
Customer Reviews
Most helpful customer reviews
3 of 3 people found the following review helpful.
A good value and versatile pump for all HVAC and MVAC
By Hobbyist
I bought this pump in an on-line auction... used for one job by the first owner. It arrived in like-new condition in the original box with all papers and packing materials. I have used it on residential HVAC service calls, replacing split condensing units 3 times, installing a new split system once, and replacing compressors 2 or 3 times. I have not used it on MVAC to date, but will do so soon because I sold the other pump I was using. Inclusion of the ACME port is a plus for those doing both HVAC and MVAC.I have changed the oil two times in two years intermittent usage. Keep in mind I'm in Arizona and do not have much moisture in systems I evacuate. I plan to change the oil again this week after two recent pump-downs on residential AC units. I also plan to adjust/tighten the packing nut to see if this improves sealing of the shut-off valve. Recent use indicated a loss of 600+ microns when turning the valve to closed. See my other review of the Yellow Jacket 69075 vacuum gauge.Overall I am very pleased with this unit.
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