Johnson Controls R120AAA-701 Repair Relay Pack R-410A Its modular NEMA 1 high-impact

Its modular NEMA 1 high-impact plastic enclosure ensures compatibility with other System 350 expansion modules

calibrated to match the blower performance and static pressure requirements of specific Lennox furnace cabinets

While excellent for water and light oils

Safety Compliance: Built to meet original Williams Comfort Products engineering specs

Johnson Controls R120AAA-701 Repair Relay Pack R-410A Its modular NEMA 1 high-impactThe Johnson Controls R120AAA 701 Repair Relay Pack is a critical field service component engineered specifically for addressing relay failure within S500 Series Electronic Fan Speed Controllers. This replacement kit allows technicians to restore functionality to AC fan speed control systems without requiring a full controller swap, maintaining precise condenser pressure regulation and head pressure control in HVACR applications. Designed for seamless