Oxford, PA

10 Ton Unit has one compressor that is left unwired. The discharge sensor is bypassed for this compressor. 1 compressor has failed mechanically here. The other compressor is running. (4) 20x25x2 filters ok. Unit working at 1/2 capacity. The (5) Ton unit at front of building (left hand side if you are on roof facing front parking lot) has a compressor that has electrically failed and will only trip the breaker. This system disconnect is left off. Due to lack of availability of R22 compressors these systems need to be replaced. Both are 3PH AC with Gas Heat. I uploaded photos of nameplates for our management staff to provide quotes.

Reviewed building to create Cooling solution for garage space.

Completed quality assurance 100,000 BTU furnace 4 Ton AC. Installed Dragonfly board, and tested. Checked over all aspects of install. Ran system in heating, verified gas pressures and fan speeds. Tested system in AC mode. Temperature split 18° 70-52 Fan speed F08. Only thing left to test is combustion analysis. It was getting very late and homeowners wanted AC back on. Install passes Quality assurance. Do not jumper W1 and W2 on Goodman furnace with single stage thermostat. The control will up stage based on AHS setting. In this case Auto. This is different from Trane furnaces where you would use a jumper between W1 and W2 with single stage thermostat.

Installed new Goodman 2 stage furnace, coil and ac. Removed old 2” vent pipe and installed new 3” exhaust vent pipe. Installed new supply plenum. Ran new lineset. Ran vinyl to the sewer pipe. Installed new condensate pump, outlet and switch. Adapted back to gas line. Tested cooling and everything was great. Could not test heat because thermostat was reading 90. Uploaded all pictures and test outs.

Estimate

Customer called in for no Cooling. Talked to customer about issue upon arrival. Outdoor unit not running and indoor is running. Checked outdoor unit operation, found open capacitor. I did check other items, fan motor is very hot at touch. Compressor is showing major rust and wear. Contactor makes noise from coil. Presents some solutions to customer. Final recommendation will be system replacement. Tony to come out to provide estimate on new system.

Got the check for install.

Performed quality assurance on Daikin additional mini split head. Checked over electrical connections and line hide. Ran system in cooling mode. Temperature split in cooling mode was 19 degrees very good. System is working properly at quality assurance.

Recovered refrigerant from system. Added indoor head unit. Installed line hide and ran new lineset, drain, and comm wire. Made all connections, pressure tested, checked for leaks. Charged system to factory charge.

Found contacter burnt and pitted , replaced 40amp single pole contactor. Also performed precision a/c tune up on Lennox a/c system. Checked all electrical connections and components. Checked temperature split. Looked over glue joints on furnace exhaust pipping that homeowner repaired, seems to be adequate. Checked refrigerant pressures and temperatures. A/c is from 2010 and evaporator coil is getting corroded, would recommend starting to think about replacement. A/c is working at time of service.