York S1-3120A3571 Sequencer OEM Compatibility: Direct fit for

OEM Compatibility: Direct fit for Rheem and Ruud gas-fired equipment

It serves as a spacer and isolator for the blower motor bolts

Engineered with a -1

preventing lateral movement and ensuring all torque is directed into the damper shaft rather than the mounting surface

Why is the SPDT configuration important for blower controls

York S1-3120A3571 Sequencer OEM Compatibility: Direct fit forThe York S1 3120A3571 Sequencer is a critical multi stage control component designed for 20 23 KW electric furnaces and high output residential HVAC systems. As a genuine OEM York replacement part, this assembly utilizes a 24V coil to manage the staged activation of up to four heating elements, preventing dangerous current spikes and nuisance breaker trips during initial startup. This electric furnace sequencer relay features four sets of normally