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Precise Calibration: Factory-set at 1
Field testing typically requires checking for 6-10V DC at the harness to confirm the board is sending power before verifying the fluctuating signal as the motor rotates
Engineered for York HVAC units
a version with monel or nickel-copper trim is required
making it a standard choice for residential and commercial cooking equipment
Johnson Controls WD-2 Detector 320788-704 Precise Calibration: Factory-set at 1The Johnson Controls WD 2 Detector is an industrial grade, 24V conductive liquid sensing solution specifically engineered for HVAC condensate monitoring and Building Automation Systems (BAS). This line powered unit functions as a high reliability drain pan level switch and leak detection interface, utilizing the electrical conductivity of water to bridge its base contacts. Designed for versatile field application, it features a weather resistant NEMA
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