Constructed with a durable aluminum base

5-9 VDC to 1-18 psig range required by specific Johnson Controls sequences

OEM Fitment: Eliminates the need for bracket modifications

This high altitude pressure switch is a critical safety component designed to monitor and regulate internal air pressure

provided the differential pressure remains within the 75 psi rating

Nordyne 624811R Module 321894-709 Constructed with a durable aluminumThe Nordyne 624811R Comfort Alert Module is a critical diagnostic tool designed specifically for high efficiency heat pump systems utilizing Copeland Scroll compressors. As a veteran grade HVAC monitoring module, it functions as a localized sensor that analyzes the compressors performance in real time. By interpreting electrical signatures, the 624811R module identifies specific faults such as low pressure, high discharge temperatures, or electrical