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The CLIMATEMASTER C13B0015N01 is a high pressure switch designed for geothermal and water-source heat pump systems. It monitors refrigerant-side pressure and interrupts unit operation when pressure reaches a set threshold, protecting the compressor and refrigerant circuit from damage. The switch is rated at a cutout pressure of 600 psi and a reset pressure of 450 psi. At 3.5 inches long, 0.95 inches wide, and 0.85 inches tall, it is a compact inline component. This is a genuine OEM replacement part engineered to match original factory specifications for direct fitment and reliable operation.
This pressure switch is used in residential and light commercial geothermal heat pump installations where refrigerant high-side pressure protection is required. It is a standard service replacement for units that have experienced switch failure or nuisance tripping due to component wear. Licensed HVAC technicians servicing ClimateMaster geothermal systems will recognize this as a factory-spec part with no modification required for installation.
Designed as an OEM-style replacement high pressure switch for ClimateMaster geothermal and water-source heat pump units. Refer to your unit service manual or ClimateMaster parts documentation to confirm fitment for your specific model.
Installation should be performed by a licensed HVAC technician with EPA Section 608 certification, as this component is part of a sealed refrigerant circuit. De-energize and lock out the unit before removing or replacing the switch. Confirm that system pressure has been relieved to a safe working level before disconnecting any refrigerant-side fittings. Follow all applicable local mechanical codes and manufacturer service procedures when reassembling the refrigerant circuit.
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