For technicians servicing large-scale hydronic systems

Corrosion Resistance: High-grade aluminum blades resist oxidation

It is rated for use in both chilled water and hot water loops within standard HVAC temperature ranges

making it an ideal choice for systems that experience fluctuating head pressures or varying evaporator loads

Aaon R75291 Transformer 319825-402 For technicians servicing large-scale hydronicThe Aaon R75291 Transformer is a high performance HVAC replacement part engineered specifically for industrial and commercial climate control systems. This 75VA transformer efficiently steps down primary input voltages of 208 230V AC to a stable 24V AC output, providing the necessary low voltage power for thermostats, control boards, and automation circuits. As an authentic OEM HVAC component, the R75291 ensures seamless integration with existing Aaon