The voltage across the condenser fan motor during operation is:

The voltage across the condenser fan motor during operation is:

• A. 120 V
• B. 240 V
• C. 12 V
• D. 480 V

Answer: (B)

Condenser fan motors in most residential HVAC outdoor units run on a high-voltage single-phase supply. In a typical US setup, there are two hot legs that provide about 240 volts between them, and the motor is connected directly across those two lines. So, during operation the voltage across the motor windings is approximately 240 volts. The other options don’t fit because 120 V is typically used for controls or smaller loads, 12 V is far too low for this motor, and 480 V is a higher-voltage supply used in different, usually industrial, contexts.

Condenser fan motors in most residential HVAC outdoor units run on a high-voltage single-phase supply. In a typical US setup, there are two hot legs that provide about 240 volts between them, and the motor is connected directly across those two lines. So, during operation the voltage across the motor windings is approximately 240 volts. The other options don’t fit because 120 V is typically used for controls or smaller loads, 12 V is far too low for this motor, and 480 V is a higher-voltage supply used in different, usually industrial, contexts.