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Designed for professional HVAC pressure sensor replacement
ensuring the unit maintains its SEER and EER ratings without restricting the exhaust path
preventing catastrophic compressor failure or heat-related equipment damage
When should a technician replace the sacrificial anode
extending the service life of the single phase condenser motor
Littelfuse 201A-AU Monitor Freon Designed for professional HVAC pressureThe Littelfuse 201A AU is a critical 3 phase voltage monitor engineered to safeguard motors from catastrophic power line faults. This auto ranging motor protection relay operates within a wide 190480 V AC window at 50 60 Hz, making it a standard choice for HVACR contractors managing various system sizes. Using proprietary microcontroller based circuitry, the unit provides continuous phase loss protection, voltage unbalance detection, and monitoring
