Completed monthly maintenance and filters PO-001906 On first floor liebert unit, it was frozen up, I thawed it out, performed a high pressure leak test. Found no leaks. I took thermal expansion valve apart and cleaned, blew it out with nitrogen, and put back together. I then pulled a vacuum on system and recharged unit accordingly with 407c and tested, unit is now working properly.
Upon arrival the unit was not cooling. Pressures were equal and unit would ice up immediately. I Pulled refrigerant from unit, performed a high pressure leak check with nitrogen. I also took the txv apart and cleaned it out. Pulled vacuum on unit and recharged. Unit is now cooling normally and the customer will monitor and let us know.
Completed 4 system matience on 4 roof top units. Collected model and serial numbers as well as most filter sizes as well.
Conpleted 6 system monthly matience on units. Checked electrical, changed filters and made sure units were cooling properly.
Preformed monthly tune up. And added 407C to 1st floor mini mate.
Summer maintenance performed a/c check on system.
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Servicing a LG mini split getting customer ready for summer.
Free air conditioner quote on 16 seer Lennox HVAC system. Customer has a leak in ac system coil. Inspected the complete system and gave customer a quote on a new 4 ton Lennox two speed and single speed, 16 seer system after completing a manual J heat load calculation that measures the exact size system needed for the home based on windows, doors, insulation, and even the direction the home faces.
Replace starter capacitor on Lennox Air Conditioning system for commercial client.
Fall maintenance on a Lennox furnace.
Troubleshooting Air Conditioning unit.