McDonough Heating and Air

Quoted in hvacbizpro

Arrived to system off and water on floor. Tested condensation pump and found multiple holes where rats chewed through vinyl tubing. Talked to Scott and he approved replacing all vinyl tubing. Replaced tubing, weathered seal exit point and tested pump. No leaks and water is exiting the building as designed. Cleaned water up and set thermostat to 78 cool.

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Arrived to system in cool thermostat set to 70 reading 74. Found system is low 3-4lbs of R410A. Found multiple leaks in indoor coil (video attached). System is 9 years old and is no longer under warranty. Spoke with Scott and he approved repair. He requested a comfort advisor to give quote on replacing complete system and quote to replace indoor coils out of warranty. Added 4lbs 6oz of R410A, system is now operating properly and refrigerant pressures and temperatures are appropriate for indoor and outdoor weather conditions at this time. Leak is not repaired, system will continue to leak refrigerant at an unknown rate. System is 6lbs

DCM3: AC complete, replaced (1) 16x20x1 and (2) 20x22x1 filters. All systems are operating within manufacturer specifications at this time. Refrigerant pressures and temperatures are appropriate for indoor and outdoor weather conditions. Maintenance checklist attached. OD temp57. Set thermostats to auto 78 Cool 64 Heat.

Main floor system: removed old equipment and installed new Rheem 4 ton a/c with 4 ton evaporator coil and 80% gas furnace. Installed new emergency drain pan, new pan safety switch, new coil safety switch, new condensation pump, 3 new thermostats, and new composite pad for outdoor unit. Reconnected supply plenum, return plenum, high voltage, low voltage, drain line, gas line, and exhaust vent. Replaced 2 motorized dampers with new EWC motorized dampers, insulated existing damper, removed humidifier, removed old UV light, removed bypass duct from humidifier, removed 6” duct off of end cap on trunk line. Patched all holes in plenums. Extended drain line past outdoor unit. System takes 20x25x4 filter. Tested system operations in heating and cooling, set refrigerant charge. Upstairs system: removed old equipment and installed new Rheem 2 ton heat pump and 2 ton air handler. Installed new supply plenum, new return plenum with 16x20x1 filter, new emergency drain pan, new pan safety switch, n

Completed Duct cleaning on upstairs and downstairs systems. Cleaned and vacuumed out 3 returns upstairs and 7 returns downstairs, also washed grills. (Photos attached)

completed

Replace outdoor capacitor and test system

Completed 2 system heat maintenance on office and apartment systems. Replaced (2) 16x20x1 filters. Both systems are fully functional and operating within manufacturer specifications at this time. Refrigerant pressures and temperatures were appropriate for indoor and outdoor weather conditions. Gate code for this property is 1206*. System 12- replaced 75/5 capacitor and tested system, amp draws on compressor and fan are in range. System is operating within manufacturer specifications. System 13- replaced 75/5 capacitor and tested system, amp draws on compressor and fan are in range. System is operating within manufacturer specifications.