Engineering, 12.04.2021 23:30 lakiethalucas

Troubleshooting Challenge 410A bumity is 60.7%

Indoor dry bulb temp 80°F Indoor wet bulb temp 70°F

Refrigerant R410A

Outdoor ambient temp 89°F hot

Suction line temp 75°F

Liquid line temp 128ºF

Actual Condensing pressure 485 PSIG (131.1 °F)

Actual Evaporator pressure 144 PSIG (50.33 °F)

Diagnose the problem (Only one)

Low Evaporator Airflow (Low load)

Refrigerant Undercharged

Refrigerant Overcharged

High heat load (High Indoor Temperature or Leak in return duct)

Answers: 3

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Troubleshooting Challenge 410A bumity is 60.7%

Indoor dry bulb temp 80°F Indoor wet bul...

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