Description
Lennox 10K56 High Pressure Manual Reset Switch Overview
The Lennox 10K56 is an OEM high pressure manual reset (M/R) switch engineered to safeguard HVAC and refrigeration systems from potentially damaging high-pressure conditions. When system pressure exceeds the set point, this switch trips and locks out the circuit, requiring a manual reset before the system can resume operation — providing an added layer of protection against repeated pressure faults that could damage compressors or other critical components.
Key Features
- OEM Lennox replacement part (SKU: 10K56)
- High pressure manual reset design prevents automatic restart after a pressure fault
- Protects compressors and refrigeration circuits from high-pressure damage
- Direct OEM fit for compatible Lennox equipment — no modifications required
- Durable construction for reliable, long-term performance in demanding HVAC applications
Application
The Lennox 10K56 is designed as a direct OEM replacement for Lennox systems requiring a high pressure manual reset switch. Always verify compatibility with your specific Lennox unit model before installation. Consult Lennox documentation or your distributor for full system compatibility details.
Installation Notes
- Manual reset required after each pressure trip event
- Inspect system for root cause of high-pressure condition before resetting
- Installation should be performed by a qualified HVAC/R technician







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