872-031

This high-quality 24V step-down transformer is a critical electrical component designed for HVAC systems, including furnaces, air conditioners, and heat pumps. It functions by converting standard 120V residential power into the low-voltage 24V required to operate thermostats, control boards, and relays. Built for reliability and long-term performance, this 40VA transformer is a common replacement part for equipment under the Tempstar, Heil, Comfortmaker, Arcoaire, Airquest, Keeprite, and Day & Night brands. If your heating or cooling system is unresponsive or your thermostat has lost power, a failed control transformer may be the cause. This part ensures your HVAC system's control circuit receives stable, efficient power for consistent operation.
Type: HVAC Control Transformer
Size: Standard
Application: Central air conditioning units, gas furnaces, and heat pump control circuits requiring low-voltage power.
Specifications: Primary Voltage: 120V AC; Secondary Voltage: 24V AC; Power Rating: 40VA; Frequency: 50/60Hz; Classification: Class 2 Transformer