Given the following readings from an electric furnace, use the formula to calculate airflow
CFM =
What is the airflow in CFM and does this furnace have the recommended air flow?
Voltage at strips 240 V
Amp draw of strips 22.6 A
Return-air temperature 65 °F
Supply-air temperature 120 °F
A) The air flow is 312 CFM; No, the air flow is too low.
B) The airflow is 336 CFM; No, the air flow is too low.
C) The air flow is 312 CFM; Yes, the air flow is at the recommended level.
D) The airflow is 336 CFM; Yes, the air flow is at the recommended level.
C
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What will be an ideal response?
Troubleshooting Reach-In / Low Temp - Diagnosis: Low on refrigerant
