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By replacing a faulty 100109879 control board
Common Questions: Is the 157S-R-M a direct replacement for older mercury models
Compact Form Factor: Small 0
monitors plenum air temperature to prevent heat exchanger damage and hazardous overheating conditions
Schneider Electric (Square D) LRD22L Relay 321894-709 By replacing a faulty 100109879The Schneider Electric (Square D) LRD22L is a heavy duty bimetallic thermal overload relay engineered for precise motor protection in demanding industrial and HVACR environments. Designed for seamless integration, this unit features an adjustable amperage range of 17 to 24 Amps and is specifically rated as a Class 20 trip relay, making it ideal for high inertia motor startups where standard Class 10 protection would cause nuisance tripping. This
