Key Benefits Normally open configuration ensures continuous flow during power interruptions to prevent freezing or system stagnation

This typically indicates a pressure switch fail-to-close error

Field Serviceability: Designed for easy manual flushing to clear sediment without disturbing the pressure setting

Optimized Performance: The 850 RPM rating is specifically calibrated for Reznor heat exchangers to prevent short-cycling and ensure proper heat dissipation

Carrier KAAWS0101AAA Control 321894-708 Key Benefits Normally open configurationThe Carrier KAAWS0101AAA Winter Start Control is a critical field installed accessory designed to prevent nuisance tripping of the low pressure switch during cold weather startups. This 24VAC time delay relay (TDR) bypasses the low pressure circuit for the first 3 minutes of operation, allowing system pressures to stabilize when evaporator temperatures are low. It is an essential component for split system air conditioners utilizing low ambient