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ideal for specialized high-pressure appliance requirements
Constructed with a rugged capillary tube sensor
Compact 6-inch inline sediment filter housing fits tight equipment footprints for easy field replacement
Durable Construction: Engineered to withstand frequent cleanings
York S1-3120A3571 Sequencer ideal for specialized high-pressure applianceThe 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