18,0000 BTU, Platinum Series Mini Split Heat Pump Condenser, Dual Zone, (Outdoor Unit)

ComfortStar CMZ-18-2Z – 18,000 BTU Dual-Zone Inverter Outdoor Heat Pump Unit

The ComfortStar CMZ-18-2Z is a dual-zone outdoor inverter heat pump engineered for multi-zone ductless split systems. With a total capacity of 18,000 BTU and a SEER rating of 22, this model is suitable for small to mid-sized applications requiring independent climate control in two separate zones. The unit integrates high-efficiency inverter compressor technology and supports year-round operation, including low ambient heating.

This outdoor unit is designed for compatibility with a range of ComfortStar indoor air handlers and is ideal for both residential and light commercial environments where zoning flexibility and energy savings are a priority.

System Features

• Dual-Zone Configuration: Supports independent operation of two indoor units for targeted comfort management
• Inverter Compressor: Variable-speed operation ensures efficient load matching and reduced energy use
• Bypass Mode: Enhances system performance under partial load conditions
• Low Ambient Heating: Operates effectively down to -13°F, extending heating capability in cold climates
• Diagnostic Capability: Built-in fault detection simplifies service and maintenance
• Control Compatibility: Optional WiFi module available for enhanced remote access and system integration

Technical Specifications

• Model Number: CMZ-18-2Z
• Total Capacity: 18,000 BTU
• Efficiency: 22 SEER
• Electrical: 230V / Single Phase / 60 Hz

Installation Requirements

Installation of the CMZ-18-2Z requires licensed HVAC personnel. This includes refrigerant line sizing, electrical wiring, pressure testing, evacuation, and final charge verification in accordance with ComfortStar's guidelines and local codes. Proper installation ensures optimal system performance and maintains product warranty eligibility.

Application Considerations

The CMZ-18-2Z is suited for professional-grade installations where two-zone coverage is needed—such as residential additions, small offices, or multi-room upgrades. With inverter-driven control and efficient zone management, it supports improved energy use without compromising comfort across designated areas.

System Advantages

• Independent Zone Control: Customize temperature settings for two separate indoor spaces
• High Seasonal Efficiency: 22 SEER operation provides significant energy cost savings
• Compact Outdoor Footprint: Designed for efficient space utilization during installation
• Advanced Control Options: Remote access capability via WiFi kit (sold separately)
• Built-In Protection: System safeguards include compressor protection and refrigerant monitoring