allowing technicians to manage both primary loads and auxiliary signaling from a single device

Extended ODF Connections: Copper connections are designed to simplify the brazing process while protecting internal seals from heat damage

250V) as long as the MFD rating remains within the 378-440 range

and air handler blower speed are rated for the increased amperage draw of a 10

delivering a nominal capacity of 124

Armstrong Furnace R20518401 Sequencer 321142-301 allowing technicians to manage bothOptimize your heating system with the genuine Armstrong Furnace R20518401 Sequencer. Also recognized as the ELEC. HEAT SEQUENCER, this OEM replacement part is engineered to manage the staged activation of heating elements in electric furnaces and air handlers. By preventing all elements from powering on simultaneously, this 24V heat relay protects your electrical system from circuit overload and ensures a smooth, consistent distribution of warmth. Its