Trane TRR2928 Transformer 24 VAC

The Trane TRR2928 Transformer that is designed to be used only with Trane Heating and Air Conditioning systems. It measures 6.5” long device steps down line to 24 volts AC. The lower voltage is used for the HVAC unit’s many control circuits to ensure that elements such as the relays and thermostats are functioning correctly. Your Trane HVAC is more complex and functions with less friction than the transformer which provides a constant low-voltage supply. The building construction design and the heating and cooling components can be relied upon.