MRCOOL Replacement Gas Side King Valve (Low Pressure Valve) 15500204000049 for DIY-MULTI4-36HP230C & DIY-MULTI5-48HP230C Multi-Zone Condensers

MRCOOL Replacement Gas Side King Valve – Part #15500204000049

For DIY-MULTI4-36HP230C & DIY-MULTI5-48HP230C Multi-Zone Condensers

The MRCOOL Gas Side King Valve (Low-Pressure Valve), part number 15500204000049, is a genuine OEM replacement component designed specifically for MRCOOL multi-zone condensers, including:

• DIY-MULTI4-36HP230C (4-Zone, 36k BTU)
• DIY-MULTI5-48HP230C (5-Zone, 48k BTU)

This gas-side service valve plays a critical role in refrigerant flow regulation within the outdoor condenser unit. Proper low-pressure control is essential for maintaining system performance, efficiency, and long-term reliability in multi-zone ductless mini split systems.

What the Gas Side King Valve Does

Often referred to as a low-pressure service valve, the king valve regulates refrigerant flow on the suction (gas) side of the system. Its primary functions include:

• Controlling refrigerant movement during operation
• Allowing isolation of the condenser during service
• Supporting proper pressure balancing in multi-zone applications
• Enabling system charging, evacuation, and maintenance procedures

In multi-zone systems, maintaining proper low-pressure regulation is vital for compressor protection, refrigerant stability, and overall HVAC efficiency.

OEM Precision & System Compatibility

This valve is manufactured to meet MRCOOL’s exact specifications for performance and durability. Using the correct OEM replacement part ensures:

• Proper refrigerant sealing
• Correct fitment and thread compatibility
• Long-term reliability under varying temperature and pressure conditions
• Safe operation within the designed system parameters

While this valve is specifically confirmed for the above MRCOOL models, it may be compatible with additional systems. Always verify part number and system requirements before installation.

Part Identification

• Part Number: 15500204000049
• Component Type: Gas Side King Valve / Low-Pressure Valve
• Application: Multi-Zone MRCOOL Condensers
• Location: Outdoor Condenser Unit – Gas (Suction) Line Side

The part number ensures accurate ordering, documentation referencing, and streamlined servicing for HVAC professionals.

⚠ Professional Installation Recommended

Installation of refrigerant service valves requires:

• EPA-certified HVAC technicians
• Proper recovery and evacuation equipment
• System pressure testing
• Leak detection verification

Improper installation can result in refrigerant loss, system inefficiency, or compressor damage.

Built for Demanding HVAC Environments

This valve is constructed from durable, high-grade materials engineered to withstand:

• Temperature fluctuations
• Outdoor exposure conditions
• Repeated service operations
• Refrigerant pressure variations

Reliability at the service valve level directly impacts system longevity and performance.

Additional Notes

• Images may be stock photos.
• Confirm compatibility before ordering.
• This is a genuine replacement component intended for MRCOOL multi-zone condenser systems.