What is a necessary check to properly set a heat anticipator?

To properly set a heat anticipator, checking the heating control circuit amperage draw is essential. The heat anticipator is a component within a thermostat that helps prevent overshooting the desired temperature. It does this by turning off the heating system before the temperature reaches the set point, based on an electrical current measurement.

By measuring the amperage draw of the heating control circuit, the technician can accurately adjust the anticipator setting to match the current draw of the system. This ensures that the anticipator turns off the heating element at the appropriate time, optimizing comfort and efficiency.

Other options listed do not directly relate to the function or adjustment of the heat anticipator. Refrigerant pressure levels, compressor voltage supply, and condenser temperature are important for the overall operation of heat pumps but do not influence the setting of the heat anticipator specifically.