Carrier 40mbcaq48xa3 Ductless Ceiling Cassette 48000 Btu/h

Product Description

The CARRIER 40mbcaq48xa3 is a 4-ton, 48,000 BTU/h ductless ceiling cassette fan coil unit designed for single-zone heat pump systems operating on R-410A refrigerant. It runs on 208-230 VAC single-phase, 60 Hz power and uses an Electronic Expansion Valve (EEV) for precise refrigerant metering. The unit mounts flush in a suspended ceiling and connects to a matched outdoor condensing unit via refrigerant tubing and low-voltage wiring. The PSC blower motor delivers 935 to 1,288 CFM across four speeds, covering both cooling and heating modes. Licensed HVAC technicians perform installation in commercial or residential applications where ceiling plenum space is available. The grille (40MBCQ02XXX4) is sold separately.

This cassette fan coil is suited for retrofit and modernization projects where a false or suspended ceiling exists and ductwork is absent or impractical. Typical applications include office additions, family room expansions, spaces currently heated by hydronic or electric systems with no existing ductwork, and historically sensitive buildings where invasive duct installation is not feasible. It operates as a single-zone, non-multi-zone indoor unit paired with a compatible Carrier or Bryant outdoor condensing unit. Cooling capacity is rated at 48,000 BTU/h, and heating capacity spans 11,850 to 52,000 BTU/h depending on operating conditions.

Key Features

• 48,000 BTU/h cooling capacity and 11,850-52,000 BTU/h heating range in a single-zone configuration
• Electronic Expansion Valve (EEV) provides accurate refrigerant metering for efficient part-load operation
• Four-speed PSC blower motor with 935-1,288 CFM airflow range
• Ceiling cassette mounting integrates flush into suspended ceilings with no ductwork required
• Flare fittings on both liquid line (3/8 inch OD) and suction line (5/8 inch OD) for secure field connections
• Remote control included for convenient zone-level temperature management
• Sound levels rated at 49-56 dBA across operating speeds

Compatibility

Designed for use with compatible Carrier and Bryant matched outdoor condensing units in a single-zone R-410A heat pump configuration. The decorative grille model 40MBCQ02XXX4 is sold separately and required for a finished installation.

Installation Notes

Installation must be performed by a licensed HVAC technician certified to handle R-410A refrigerant in accordance with EPA Section 608 regulations. Disconnect and lock out all electrical power before accessing refrigerant connections or performing any wiring work. The unit requires adequate ceiling plenum depth to accommodate its 11.3-inch height, and the drain connection (3/4 inch) must be routed to an appropriate condensate drain line per local mechanical codes. Do not operate the system without verifying that refrigerant line sizes, flare connections, and electrical supply match the equipment specifications.

Technical Specifications

• Cooling Capacity: 48,000 BTU/h
• Heating Capacity: 11,850-52,000 BTU/h
• Tonnage: 4 tons
• Voltage: 208-230 VAC
• Phase: Single
• Frequency: 60 Hz
• Blower Motor Type: PSC (Permanent Split Capacitor)
• Blower Motor HP: 1/6
• Blower Motor RPM: 850
• Blower Motor Speeds: 4
• Blower Motor Watts: 240-248
• Airflow (CFM): 935-1,288
• Refrigerant: R-410A
• Metering Device: EEV - Electronic Expansion Valve
• Liquid Line Size (OD): 3/8 inches, Flare
• Suction Line Size (OD): 5/8 inches, Flare
• Drain Connection Size: 3/4 inches
• Evaporator Coil Fins per Inch: 20
• Mounting Type: Ceiling Cassette
• Sound Level: 49-56 dBA
• Cooling Stages: 1
• Heating Stages: 1
• Multi Zone: No
• Number of HVAC Zones: 1
• Remote Control Included: Yes
• Color: White
• Length: 32.68 inches
• Width: 32.68 inches
• Height: 11.3 inches
• Weight: 64.59 pounds
• Country of Origin: China
• Prop 65: Yes
• Energy Star Rated: No

Standard Information

• Brand: CARRIER
• Manufacturer Part Number: 40mbcaq48xa3