Pentair UltraTemp/ThermalFlo 70/120 Low Pressure Switch (473656Z)

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This low pressure switch is used in compatible Pentair UltraTemp and ThermalFlo heat pump systems to monitor refrigerant-side pressure conditions. It helps the equipment respond to low-pressure situations that may indicate airflow problems, refrigerant issues, temperature conditions, or other system faults. A failed switch can prevent operation, cause intermittent shutdowns, or trigger service diagnostics.Replacement should follow proper troubleshooting so the switch is not mistaken for the root cause of an underlying system problem. This component is intended for qualified heat pump service and should be matched to the equipment model and part number. When correctly installed, it restores an important safety and monitoring function within the unit. Show more