Carrier 40vmm012a--3 Ducted Vrf Indoor Unit 12000 Btu/h

Product Description

The CARRIER 40vmm012a--3 is a medium-static concealed ducted indoor unit engineered for Variable Refrigerant Flow (VRF) systems using R-410A refrigerant. Rated at 12,000 BTU/h cooling capacity and 13,600 BTU/h heating capacity, this 1-ton unit operates on 208-230 VAC, single-phase, 60 Hz power. It uses a DC fan motor with three selectable speeds and delivers airflow between 320 and 430 CFM. The unit handles up to 0.6 inches of external static pressure (ESP), making it suitable for light-to-moderate duct systems. A licensed HVAC technician familiar with VRF systems performs the installation.

The 40vmm012a--3 is designed for residential and light commercial concealed ducted applications where the air handler is hidden above a ceiling or within a soffit. The unit ships with a knock-out provision for a fresh air opening, a built-in condensate drain pump, and a reversible return air arrangement that can be configured for rear or bottom return. These features give installers flexibility when fitting the unit into tight or unconventional spaces. The variable staging matches output to load, reducing energy consumption during partial-load conditions. Sound levels range from 32.7 to 36.7 dBA depending on fan speed selected.

Key Features

• 12,000 BTU/h cooling and 13,600 BTU/h heating capacity for 1-ton VRF zoning
• DC fan motor with three speeds and 320-430 CFM airflow range
• Handles up to 0.6 inches WG external static pressure for ducted installations
• Built-in condensate drain pump eliminates need for a separate condensate lift station
• Reversible return air arrangement — configurable rear or bottom return
• Knock-out for fresh air opening to support ventilation requirements
• ETL Listed for compliance with North American safety standards

Compatibility

The 40vmm012a--3 belongs to the CARRIER 40VMM product family and is designed for use in R-410A Variable Refrigerant Flow systems. Liquid line connection uses a 1/4-inch OD flare fitting; suction line uses a 1/2-inch OD flare fitting. Verify system controller and outdoor unit compatibility with the 40VMM product family documentation before installation.

Installation Notes

Installation must be performed by an EPA Section 608-certified HVAC technician experienced with VRF systems. Shut down and isolate the outdoor VRF unit and de-energize all associated electrical circuits before connecting refrigerant lines or wiring. Maximum overcurrent protection is 15 amps — size branch circuit protection accordingly and verify compliance with NEC requirements for the jurisdiction. Confirm the condensate drain pump discharge line is routed and pitched per the manufacturer installation instructions before startup.

Technical Specifications

• Cooling Capacity: 12,000 BTU/h
• Heating Capacity: 13,600 BTU/h
• Tonnage: 1 ton
• Voltage: 208-230 VAC
• Phase: Single
• Frequency: 60 Hz
• Maximum Overcurrent Protection (MOCP): 15 amps
• Airflow (CFM): 320-430
• Blower Motor Speeds: 3
• Sound Level: 32.7-36.7 dBA
• External Static Pressure: Up to 0.6 inches WG
• Refrigerant: R-410A
• Staging: Variable
• Mounting Type: Concealed Ducted
• Liquid Line Fitting: Flare, 1/4-inch OD
• Suction Line Fitting: Flare, 1/2-inch OD
• Length: 25 inches
• Width: 39.75 inches
• Height: 10.625 inches
• Weight: 76 pounds
• Certifications: ETL Listed
• Prop 65: Yes
• Country of Origin: China

Standard Information

• Brand: CARRIER
• Manufacturer Part Number: 40vmm012a--3