Description
Marvair 451988 High Pressure Switch — R-410A Compatible
The Marvair 451988 is a high pressure switch purpose-built for use in R-410A refrigerant systems. Designed as a genuine OEM replacement component, this switch provides reliable over-pressure protection to safeguard compressors and refrigeration circuits from potentially damaging high-side pressure excursions. It is an ideal direct replacement for Marvair packaged HVAC equipment utilizing R-410A refrigerant.
Key Features
- Genuine Marvair OEM replacement part (SKU: 451988)
- Engineered specifically for R-410A refrigerant systems
- High pressure switch function protects compressor and system components from over-pressure conditions
- Direct drop-in replacement for compatible Marvair equipment
- Helps maintain system safety and operational integrity
- Durable construction for long-term reliability in demanding HVAC applications
Application
This high pressure switch is intended for use in Marvair packaged air conditioning and HVAC units charged with R-410A refrigerant. It monitors the high-side refrigerant pressure and interrupts the circuit when pressure exceeds the rated threshold, preventing compressor damage and system failure. Always verify compatibility with your specific Marvair unit model before installation.
Installation Notes
- Intended as a direct OEM replacement — consult your Marvair equipment service manual for installation procedures
- Ensure system is properly recovered and depressurized before servicing
- Verify refrigerant type (R-410A) and system operating pressures prior to installation
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