Which statement about the coil on line #11 is accurate given the schematic?

Which statement about the coil on line #11 is accurate given the schematic?

• A. It controls the blower motor
• B. It does not control the blower motor
• C. It controls the condenser fan motor
• D. It controls the thermostat

Answer: (B)

The key idea is that a relay or contactor coil is a control element, not the load itself. When the coil on line 11 is energized, it closes or opens its associated contacts to switch power to a load. The blower motor’s power path is driven by a different set of contacts (and a different coil) in the schematic, so energizing the line-11 coil does not directly power the blower motor. In other words, that coil is part of a control circuit for another device (for example, the condenser fan or a secondary control function), not the blower motor. That’s why the statement that it does not control the blower motor is the correct interpretation.

The key idea is that a relay or contactor coil is a control element, not the load itself. When the coil on line 11 is energized, it closes or opens its associated contacts to switch power to a load. The blower motor’s power path is driven by a different set of contacts (and a different coil) in the schematic, so energizing the line-11 coil does not directly power the blower motor. In other words, that coil is part of a control circuit for another device (for example, the condenser fan or a secondary control function), not the blower motor. That’s why the statement that it does not control the blower motor is the correct interpretation.