18,000 BTU Gold Series Single Zone Ductless Mini-Split Heat Pump (Indoor Unit)

ComfortStar CGS18CD(I) – 18,000 BTU Gold Series Wall-Mounted Indoor Unit

The ComfortStar CGS18CD(I) is a 18,000 BTU wall-mounted indoor unit designed for ductless mini-split heat pump systems. Engineered for residential and light commercial applications, it delivers energy-efficient heating and cooling performance with a compact, quiet design. This model is part of ComfortStar’s Gold Series and is compatible with properly matched outdoor units to create a complete high-efficiency system.

Performance Features

• Rated Efficiency: Up to 19 SEER for cooling and 10.5 HSPF for heating, supporting reduced energy usage
• Inverter Technology: Variable-speed operation delivers consistent indoor comfort and precise temperature control
• Low Sound Level: Operates at a minimum of 26 dB(A), ideal for noise-sensitive indoor environments
• Turbo Mode: Accelerated heating or cooling response to quickly reach desired temperatures
• Sleep Function: Gradually adjusts setpoints overnight for energy savings and improved nighttime comfort
• Self-Diagnostics: Integrated fault detection and error code display assist with maintenance and troubleshooting

Specifications

• Model: CGS18CD(I)
• Cooling Capacity: 18,000 BTU
• Heating Capacity: 20,000 BTU
• Voltage: 230V / 1 Phase / 60 Hz
• Refrigerant: R-410A
• Sound Pressure Level: As low as 26 dB(A)

Installation Considerations

The CGS18CD(I) requires proper installation in conjunction with a compatible ComfortStar outdoor condenser. Refrigerant line connections, power supply wiring, and condensate drainage must be completed per manufacturer specifications. For best results and code compliance, installation should be handled by a licensed HVAC technician familiar with ductless mini-split systems.

Contractor Use

This indoor unit is suitable for retrofit or new construction applications where traditional ducted HVAC solutions are impractical. Its compact design and quiet operation make it ideal for use in residential zones such as bedrooms, offices, or apartments. The integrated inverter controls and low-ambient performance extend installation flexibility in a wide range of climates.