Armstrong Furnace 27X97 Heat Strip Kit Freon the FS4-3J includes an internal

the FS4-3J includes an internal adjustment screw that allows technicians to modify the flow actuation point to meet specific system GPM requirements

It maintains the same 24V coil voltage and terminal configuration for a seamless drop-in replacement

providing accurate readings up to 35 inches of water column (WC)

the P83900 mitigates the risk of slugging and bearing failure upon startup

restoring the direct spark ignition sequence essential for safe fuel combustion

Armstrong Furnace 27X97 Heat Strip Kit Freon the FS4-3J includes an internalThe Armstrong Furnace 27X97 Heat Strip Kit is a critical OEM component designed for field installation in compatible air handlers and electric furnaces. This 15kW electric heat strip provides essential supplemental or emergency backup heating, delivering approximately 51,180 BTU hr to maintain indoor design temperatures when ambient conditions drop below the heat pump's balance point. As a high capacity auxiliary heating element, it features an