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The RES-1E features a built-in signal-loss mode that can be configured to hold the last value or go to a specific failsafe resistance level
or the control board flashing a 2-flash or 3-flash error code related to pressure switch stuck open or closed conditions
providing the low-vibration performance required for quiet indoor air handler and furnace operations
Plug-and-Play Wiring: Equipped with 48-inch leads and socket terminals for fast connection to the control board
Heil Quaker ICP 1171805 Pressure Switch 321894-709 The RES-1E features a built-inThe Heil Quaker ICP 1171805 Pressure Switch is an essential OEM safety component designed for high pressure monitoring in residential and commercial HVAC systems. Engineered to protect the compressor and sealed system integrity, this high pressure switch features a precise Cut Out (C O) at 426 PSI and a Cut In (C I) at 320 PSI. As a genuine ICP replacement part, it ensures seamless compatibility with Heil, Tempstar, Comfortmaker, and KeepRite