The Lennox Y7599 Electronic Expansion Valve part number 15500213000046 is an OEM metering component designed for precise refrigerant flow control in Lennox MLA MLB MPA and MPB series units. This electronic expansion valve regulates refrigerant delivery based on system demand, helping maintain stable operating pressures, accurate superheat control, and overall system efficiency.

Designed specifically for Lennox ductless and mini split systems, this valve ensures proper communication with the unit’s control board and supports smooth modulation during varying load conditions. Using the correct OEM electronic expansion valve is critical for system performance, reliability, and long term compressor protection.

This component is commonly replaced during major service events involving refrigerant circuit issues, control faults, or when restoring factory level performance to compatible Lennox systems.

 

Key Features:

OEM Lennox electronic expansion valve
Precision refrigerant flow modulation
Supports stable superheat and system efficiency
Designed for direct compatibility with Lennox controls
Restores proper operation in ductless and mini split systems

 

Compatibility:

Compatible with Lennox MLA series units
Compatible with Lennox MLB series units
Compatible with Lennox MPA series units
Compatible with Lennox MPB series units

Always confirm model and serial number compatibility before ordering.

 

Applications:

Ductless mini split systems
Multi position air conditioning and heat pump units
Residential and light commercial HVAC systems

 

Specifications:

Brand Lennox
Part Number Y7599
Manufacturer Part Number 15500213000046
Component Type Electronic Expansion Valve
Function Refrigerant flow control
Application MLA MLB MPA MPB series units