Always verify your model and serial number to ensure the 0259A00029 is the correct match for your unit

verify the specific sampling depth and sensor mounting points required for your controller

it serves as a direct OEM replacement for specific Lennox units

check your existing part number or wiring diagram for the 1185459 or 1320363 designation

Technicians often observe the furnace blower running continuously while the burners fail to ignite

Siemens Building Technology 599-03609 Actuator 326070-701 Always verify your model andThe Siemens 599 03609 is a heavy duty spring return valve actuator assembly featuring the GCA161. 1U electronic motor, engineered for high torque applications in building automation systems. Built for proportional 0 10VDC control, this rack and pinion unit provides precise modulation for Flowrite 599 Series globe valves ranging from 1 2 inch to 2 inch sizes. With a 160 lb in torque rating and a 3 4 inch stroke, it effectively transforms rotary