Installing this HVAC control board kit ensures the combustion blower

Durable Construction: Heavy-gauge galvanized steel provides reliable resistance against corrosive flue gases and thermal expansion

and R-402B

it simplifies brazing without the need for complex piping modifications in standard 7

For optimal system reliability

Siemens Industrial Controls 3RT2025-1AV60 Contactor 326010-701 Installing this HVAC control boardThe Siemens 3RT2025 1AV60 Sirius Contactor is a heavy duty 3 pole IEC magnetic contactor engineered for demanding industrial motor control systems. As a Size S0 frame unit, it serves as the direct dimensional and electrical successor to the legacy 3RT1025 1AV60 series. This 16 Amp contactor is optimized for AC 3e AC 3 motor applications, supporting loads up to 10 HP at 460V or 7. 5 kW at 400V. It features a robust 480V AC 60Hz coil designed to