the actuator top assembly can be serviced by removing the cover bolts

ensuring the flame signal remains stable and the 100208085 burner assembly operates within manufacturer specifications

monitoring internal plenum temperatures to prevent heat exchanger damage or unsafe operating conditions

or a clogged filter causing the plenum temperature to exceed the 220°F threshold

As the 10123534SP direct replacement for 10123534

Sensus 019-01029-001 Orifice the actuator top assembly canThe Sensus 019 01029 001 1 8" Orifice is a precision machined flow control component engineered specifically for Sensus 496 and 61R2 domestic service regulators. This aluminum alloy orifice acts as the primary metering element, establishing a calibrated 1 8 inch restriction that dictates the regulator's maximum capacity and pressure drop characteristics. Designed for high pressure service, the 019 01029 001 is rated for an inlet pressure up to 125