verify dimensions before field application

Specifically built for low-temperature applications

Is this unit compatible with older 2-wire systems

Featuring a 4-15/16-inch copper tube and a durable brass connector with a 1/2-inch NPT outside thread

What is the correct rotation for the 10625707 fan blade

Siemens Combustion LDU11.523A17 Valve Els PW 17895 verify dimensions before field applicationThe Siemens LDU11. 523A17 Valve Proving System is a critical safety controller engineered for automatic gas valve leak testing in double block valve configurations. Operating on a 110 volt AC supply, this unit utilizes a rigorous two stage pressure proving principle to verify the integrity of shut off valves before burner startup or following a controlled shutdown. During Test1, the device evacuates the test space and monitors for atmospheric pressure