When troubleshooting 10-second cyclical LED flash codes or communication errors

providing excellent corrosion resistance and long-term reliability in closed-loop chilled or hot water applications

Enhanced Durability: Zinc-plated finish protects against moisture and oxidation in damp plenum environments

including 1/2" and 3/4" configurations

Designed for HVAC residential and commercial applications

ClimateMaster 13B0004N01 Relay 322055-301 When troubleshooting 10-second cyclical LEDThe ClimateMaster 13B0004N01 Relay is a heavy duty DPDT switching relay designed for demanding HVACR control circuits. Engineered for 24VAC coil operation, this component provides reliable isolation and simultaneous control of two independent circuits. With a robust 22 amp current rating, it is primarily utilized in ClimateMaster heat pumps, air handlers, and geothermal systems to sequence high load components such as blower motors, compressors, and