The Carrier Gemini® Single-Stage Commercial Split-System combines energy-efficient cooling and exceptional HVAC performance to meet the needs of demanding commercial environments. Powered by Puron® refrigerant and engineered to meet ASHRAE 90.1 standards, this system offers consistent climate control while promoting sustainability. Packed with installation flexibility, advanced reliability features, and user-friendly maintenance options, the 38AUZ delivers unmatched value and HVAC solutions tailored to your business.
Includes scroll compressors, high/low-pressure switches, and anti-short-cycling protection to enhance durability and dependability over years of operation.
Designed for seamless setup, the unit features a single-piece construction, 24V control circuits for fast thermostat wiring, and a base rail with forklift slots for effortless positioning on rooftops or on the ground.
Integrates a Comfort Alert™ diagnostic board, easy-access service panels and a non-powered convenience outlet to streamline service tasks and lower maintenance costs.
Runs on Puron® refrigerant to provide eco-friendly, energy-efficient cooling while maintaining a reduced environmental impact.
Discover Gemini® 38AUZ HVAC system with energy-efficient cooling, flexible installation and reliable performance for sustainable, high-quality climate control.
Accessory and Kit Data
Split Systems Heat Pump and Condensing Units Accessory Hail Guard 15 and 20 Ton Cooling Unit 15 and 20 Ton Heat Pump CALVHLGD007A00, 008A00, 009A00
Split Systems Heat Pump and Condensing Units Accessory Outdoor Coil Grille 6 to 12.5 Ton Cooling Unit 6 to 10 Ton Heat Pump
CALOWAMB018A00 - CALOWAMB029A00, CALOWAMB037A00 - CALOWAMB042A00 Motormaster® I Head Pressure Controller Accessory for Split System Condensing Units 15 and 20 Tons
Hail Guard Accessory for Split Systems Heat Pump and Condensing Units 15 and 20 Tons CALVHLGD008A00, CALVHLGD009A00
CALOWAMB004A00-CALOWAMB006A00, CALOWAMB009A00, CALOWAMB030A00-CALOWAMB036A00 Split Systems Accessory Motormaster I Head Pressure Controller 6 to 12.5 Tons
33WIFISTAT43 Wi-Fi Thermostat
Hail Guard Accessory for Split Systems Heat Pump and Air Conditioning Condensing Units (6-12.5 Ton Cooling, 6-10 Ton Heat Pump)
Brochure
Gemini™ 38AU / 40RU Split System Air Conditioners and Heat Pumps Brochure
A World of Comfort 2025 - Brochure
Understanding the AIM Act
Staged Air Volume (SAV) System for Carrier’s Small and Medium Packaged Rooftop Units and Light Commercial Splits Systems
A World of Comfort 2025 - Brochure (Printer Version)
Configuration
33CSPREMLK PremierLink™ Retrofit Rooftop Controller Version 3.x
Guide Specifications
38AUZ / 38AUD Guide Specifications, 6 to 20 Nominal Tons
38AUZ/38AUD Guide Specifications, 21 to 88 kW (6 to 25 Tons), 50 Hz
Installation
Refrigerant Holding Charge Notification, 38AUZ/38AUD Air-Cooled Condensing units, 6 to 20 Nominal Tons
Indoor Fan Rated Airflow (cfm) Data Supplement 38AU/38AUQ/40RU/40RUQ Split Systems 6 to 20 Nominal Tons
Installation Summary Chart for 6 to 12.5 Ton Condensing Units, 6, 7.5 and 10 Ton Heat Pump Units
38AUZ/AUQ12 Air Cooled Condensing Units and Heat Pump Condensing Units with Puron (R-410A) Refrigerant, Size 12, Electrical Data Supplement
38AU 07-14 Gemini Air Cooled Condensing Units with Puron (R-410A) Refrigerant
38AU 16-28 Air Cooled Condensing Units with Puron (R-410A) Refrigerant
38AU 07-14 Air-Cooled Condensing Units 50 Hz with Puron (R-410A) Refrigerant
Product Data
38AUZ/38AUD 07-25 Commercial Split Systems Air Conditioning Condensing Units, 6 to 20 Tons
38AUZ/38AUD 07-28 Air-Cooled Condensing Units, with Puron (R-410A) Refrigerant, 21 kW to 88 kW (6 to 25 Nominal Tons), 50 Hz Units
REVIT and 3D DRW Files
38AUZ Packaged Air Cooled Condenser Units, Single Circuit, Family REVIT Files
Submittal
38AUZ/D 50Hz Air-Cooled Condensing Units with Puron (R-410A) Refrigerant, Sizes: 07 to 25 (18.3 to 59.2kW)
38AUZ/D 07-28 Air-Cooled Condensing Units with Puron (R-410A) Refrigerant, 60 Hz
Warranty Card
Limited Warranty for Commercial Air Conditioning Condensing Unit with Puron Refrigerant
Limited Warranty for Light Commercial Equipment
Accessory and Kit Data
Split Systems Heat Pump and Condensing Units Accessory Hail Guard 15 and 20 Ton Cooling Unit 15 and 20 Ton Heat Pump CALVHLGD007A00, 008A00, 009A00
Split Systems Heat Pump and Condensing Units Accessory Outdoor Coil Grille 6 to 12.5 Ton Cooling Unit 6 to 10 Ton Heat Pump
CALOWAMB018A00 - CALOWAMB029A00, CALOWAMB037A00 - CALOWAMB042A00 Motormaster® I Head Pressure Controller Accessory for Split System Condensing Units 15 and 20 Tons
Hail Guard Accessory for Split Systems Heat Pump and Condensing Units 15 and 20 Tons CALVHLGD008A00, CALVHLGD009A00
CALOWAMB004A00-CALOWAMB006A00, CALOWAMB009A00, CALOWAMB030A00-CALOWAMB036A00 Split Systems Accessory Motormaster I Head Pressure Controller 6 to 12.5 Tons
33WIFISTAT43 Wi-Fi Thermostat
Hail Guard Accessory for Split Systems Heat Pump and Air Conditioning Condensing Units (6-12.5 Ton Cooling, 6-10 Ton Heat Pump)
Brochure
Gemini™ 38AU / 40RU Split System Air Conditioners and Heat Pumps Brochure
A World of Comfort 2025 - Brochure
Understanding the AIM Act
Staged Air Volume (SAV) System for Carrier’s Small and Medium Packaged Rooftop Units and Light Commercial Splits Systems
A World of Comfort 2025 - Brochure (Printer Version)
Configuration
33CSPREMLK PremierLink™ Retrofit Rooftop Controller Version 3.x
Guide Specifications
38AUZ / 38AUD Guide Specifications, 6 to 20 Nominal Tons
38AUZ/38AUD Guide Specifications, 21 to 88 kW (6 to 25 Tons), 50 Hz
Installation
Refrigerant Holding Charge Notification, 38AUZ/38AUD Air-Cooled Condensing units, 6 to 20 Nominal Tons
Indoor Fan Rated Airflow (cfm) Data Supplement 38AU/38AUQ/40RU/40RUQ Split Systems 6 to 20 Nominal Tons
Installation Summary Chart for 6 to 12.5 Ton Condensing Units, 6, 7.5 and 10 Ton Heat Pump Units
38AUZ/AUQ12 Air Cooled Condensing Units and Heat Pump Condensing Units with Puron (R-410A) Refrigerant, Size 12, Electrical Data Supplement
38AU 07-14 Gemini Air Cooled Condensing Units with Puron (R-410A) Refrigerant
38AU 16-28 Air Cooled Condensing Units with Puron (R-410A) Refrigerant
38AU 07-14 Air-Cooled Condensing Units 50 Hz with Puron (R-410A) Refrigerant
Product Data
38AUZ/38AUD 07-25 Commercial Split Systems Air Conditioning Condensing Units, 6 to 20 Tons
38AUZ/38AUD 07-28 Air-Cooled Condensing Units, with Puron (R-410A) Refrigerant, 21 kW to 88 kW (6 to 25 Nominal Tons), 50 Hz Units
REVIT and 3D DRW Files
38AUZ Packaged Air Cooled Condenser Units, Single Circuit, Family REVIT Files
Submittal
38AUZ/D 50Hz Air-Cooled Condensing Units with Puron (R-410A) Refrigerant, Sizes: 07 to 25 (18.3 to 59.2kW)
38AUZ/D 07-28 Air-Cooled Condensing Units with Puron (R-410A) Refrigerant, 60 Hz
Warranty Card
Limited Warranty for Commercial Air Conditioning Condensing Unit with Puron Refrigerant
Limited Warranty for Light Commercial Equipment
