Heat Pump Condenser, Quad Zone, Outdoor Unit, 48,000 BTU, 230V, 1 PH, 17 SEER

ComfortStar CMZ-48-4Z – 48,000 BTU Quad Zone Outdoor Heat Pump

The ComfortStar CMZ-48-4Z is a quad-zone outdoor inverter heat pump designed for efficient multi-zone climate control. Delivering 48,000 BTU of capacity, this system supports up to four indoor units, making it suitable for larger residential or light commercial applications that require independent temperature regulation across multiple zones.

Engineered with inverter technology and rated at 17 SEER, this system adjusts compressor speed to match load requirements, optimizing energy use while maintaining consistent indoor comfort. Low ambient performance down to -13°F ensures year-round heating and cooling capability, even in colder environments.

System Highlights

• Multi-Zone Capability: Supports up to four zones for customized temperature control across multiple rooms or spaces.
• Inverter Compressor: Modulates operation for energy savings and improved system longevity.
• Low Ambient Heating: Operates in outdoor temperatures as low as -13°F, suitable for cold-climate applications.
• Diagnostic Functions: Includes self-diagnosis to aid in service and maintenance troubleshooting.
• Bypass Function: Optimizes performance when fewer zones are active.
• Optional WiFi Integration: Compatible with add-on WiFi kits for remote access and control.

Technical Specifications

• Model Number: CMZ-48-4Z
• Total Capacity: 48,000 BTU
• Power Supply: 230V / 1 Phase / 60 Hz
• SEER Rating: 17
• Zones Supported: Up to 4

Installation Requirements

This quad-zone heat pump is designed for installation by qualified HVAC professionals. Proper configuration of line sets, refrigerant charging, and electrical setup are essential to ensure system integrity and performance. Installers should follow ComfortStar specifications and local code requirements during commissioning.

Professional Application

The CMZ-48-4Z is ideal for HVAC contractors needing a dependable multi-zone solution for new installations, remodels, or retrofit projects. Its combination of inverter efficiency, zoning flexibility, and cold-weather operation make it a practical choice for demanding environments.

Functional Advantages

• Zone-Specific Control: Independent operation of up to four indoor heads for targeted climate management.
• Energy Optimization: Inverter-driven performance enhances energy savings under variable load conditions.
• System Compatibility: Works with a variety of ComfortStar indoor unit types including wall-mounted and ceiling cassette models.
• Built-In Protections: Includes safety functions for compressor overload, voltage fluctuation, and communication errors.