or a "clicking" sound from the compressor

5 Amp relay features standard 1/4 inch quick-connect terminals for efficient field wiring

preventing vibration noise during compressor operation

monitoring internal heat exchanger temperatures to prevent overheating

Emerson Alco 065407 Moisture Indicator or a "clicking" sound fromThe Emerson Alco 065407 (Model HMI 1TT4) is a high performance 1 2" ODF sweat moisture indicator designed for rigorous monitoring of refrigerant liquid lines. Engineered with a 680 PSI maximum working pressure, this hermetic sight glass provides reliable leak free performance and clear visibility for CFC, HCFC, and HFC refrigerants. The crystal clear viewing lens features a highly sensitive moisture indicator element that changes color based on the