The Carrier Factory Authorized Parts 312926-252 is an OEM high pressure switch designed for compatible Carrier HVAC equipment requiring this specific refrigerant pressure safety component.

The 312926-252 High Pressure Switch monitors refrigerant pressure within the HVAC system and responds when pressure reaches its specified operating threshold. This safety control helps protect compatible air-conditioning and heat pump equipment from potentially damaging high-pressure operating conditions.

Excessive refrigerant pressure can occur because of restricted condenser airflow, dirty condenser coils, condenser fan problems, or other refrigeration system malfunctions.

Designed as an equipment-specific replacement component, the Carrier 312926-252 helps maintain the manufacturer's intended pressure protection when properly installed in approved applications.

Key Features & Function

• Brand: Carrier Factory Authorized Parts
• Manufacturer Part Number: 312926-252
• Product Type: High Pressure Switch
• Genuine OEM HVAC replacement component
• Monitors refrigerant system pressure
• Supports high-pressure safety protection
• Designed for compatible Carrier HVAC equipment
• Temperature and pressure protection system component
• Equipment-specific pressure connection and electrical configuration
• Suitable for professional HVAC maintenance and repair

Product Details & Specifications

Specification Note: The exact pressure cut-out setting, reset pressure, electrical ratings, and refrigerant compatibility have not been independently verified. These specifications must be confirmed before selecting a substitute.

HVAC Depot Pro Tip

A high pressure switch that opens repeatedly may indicate an actual refrigeration system problem rather than a defective switch.

Before replacing the Carrier 312926-252, inspect the equipment for conditions that can cause excessive refrigerant pressure.

Common causes of high-pressure switch activation include:

• Dirty or restricted condenser coils
• Condenser fan motor failure
• Incorrect condenser fan operation
• Restricted outdoor airflow
• Refrigerant overcharge
• Noncondensable gases in the refrigerant system
• Refrigerant circuit restrictions

HVAC Depot Pro Tip: Always verify the pressure switch's factory cut-out and reset ratings before replacement. Installing a switch with incorrect pressure settings can compromise compressor protection.

Important: Never bypass or jumper a high pressure safety switch to keep equipment operating. Refrigerant systems operate under high pressure and require proper service procedures.

Installation and refrigeration system testing should be performed by a qualified HVAC technician.

Equipment / Model Compatibility

The Carrier 312926-252 is intended for compatible Carrier HVAC equipment requiring this specific OEM high pressure switch.

Exact compatible equipment models have not been independently verified.

Before ordering, confirm:

• Complete equipment model number
• Equipment serial number
• Original pressure switch part number
• Pressure cut-out and reset settings
• Electrical connector configuration
• Refrigerant type
• Pressure connection design

Compatibility Notice: The 312926-252 is not a universal high pressure switch. Matching the physical connection alone does not guarantee compatibility.