High pressure switch /high – code: 5270300 – Dometic

Dometic high-pressure switch – replacement code 5270300

The high-pressure switch Dometic with code 5270300 is a safety component used in marine air conditioning systems, where controlling the pressure on the high side of the refrigeration circuit is essential for proper management of operating conditions. It is a replacement identified in Dometic catalogs as High Pressure Switch, suitable for applications on Dometic systems dedicated to marine air conditioning.

This sheet is designed for professional use in the spare parts sector: identification through product code and model is the most important element for the correct selection of the component.

Component features and details

The pressure switch is designed to perform a protection and control function within the refrigeration circuit. In particular, it operates as a safety device that intervenes when the pressure exceeds a predetermined threshold, helping to prevent overpressure conditions.

Identifying data

• Brand: Dometic
• Product code (supplier): 5270300
• Description: High-pressure switch (High Pressure Switch)
• Model: CC80-20/15
• Field of intervention: 20 / 15 bar

High pressure switch function

Inside an air conditioning system (particularly in the nautical field), the high pressure switch is used to:

• monitor the pressure on the high side of the refrigeration circuit;
• stop the compressor operation when the pressure exceeds the intervention value;
• allow restart when the pressure returns to the reset value;
• protect the refrigeration circuit from overpressure and abnormal operating conditions.

Applications

The component Dometic 5270300 is intended for use in marine air conditioning applications, as an original Dometic replacement. According to the indications in the spare parts catalogs, it is used on:

• Dometic marine chillers;
• sea water air conditioning systems of the PCWM/FCL;
• nautical air conditioning systems that require high pressure control of the refrigeration circuit.

Compatibility (important note)

Compatibility is indicated in the Dometic spare parts catalogs for chillers and heat pumps of the PCWM/FCL series, referring to the model CC80-20/15. When ordering, to avoid errors, it is recommended to always check the code 5270300 in the spare parts manual or on the parts list of your system.

Advantages for maintenance and spare parts

In a context of scheduled maintenance or fault restoration on onboard air conditioning systems, using a pressure switch correctly identified by code and model helps maintain consistency with the original system configuration.

• Replacement identifiable with certainty through Dometic code 5270300 and model CC80-20/15.
• Safety component dedicated to controlling the high pressure in the refrigeration circuit.
• Usage indication for applications in Dometic marine air conditioning (series PCWM/FCL).
• Suitable for professional interventions of assistance and maintenance on nautical systems.

Usage and operational notes

The high-pressure switch is a component that works in a refrigeration circuit: for this reason, installation and replacement should be carried out by qualified personnel, in compliance with the procedures provided by the system manufacturer and good maintenance practices.

Tips for identification before purchase

• configuration spare part code 5270300 on the unit documentation (spare parts manual, exploded view, component list).
• Check the correspondence of the model CC80-20/15 when indicated on the label or in the technical documentation.
• In the presence of system variants, refer to the unit series (e.g. PCWM/FCL) and the specific configuration installed on board.

Note

The information provided on this page describes the component based on available data (brand, code, model, field of application, and intended use in marine air conditioning). For any compatibility doubts, it is preferable to rely on the original code and on the system documentation.

FAQ – Frequently Asked Questions

What is the code of the Dometic high-pressure switch in this datasheet?

The product code is 5270300 (Dometic).

What function does a high-pressure switch perform in a marine air conditioning system?

It monitors the pressure on the high side of the refrigeration circuit and can interrupt the compressor operation when the pressure exceeds the intervention value, allowing restart when the pressure returns to the reset value.

What is the model associated with the Dometic replacement part 5270300?

In the available data, the spare part is indicated with model CC80-20/15.

For which applications is the Dometic 5270300 pressure switch indicated?

It is indicated for Dometic marine chillers and for seawater air conditioning systems of the PCWM/FCL series, where high-pressure control of the refrigeration circuit is required.

How do I check compatibility before purchase?

It is recommended to verify the code 5270300 on the unit's spare parts documentation (manual, exploded view, or component list) and, when available, the correspondence of the model CC80-20/15.