MMDB-U
The Toshiba Carrier u-Series Medium Static Duct is ideal for single room hideaway applications. Unit height (10.9 inches) combined with ability to handle external static pressure (up to 0.8 in wg) makes it an excellent choice for plenum application.
The Toshiba Carrier u‑Series MMDB‑U Medium Static Duct Indoor Unit is designed for concealed, single‑room VRF applications where flexibility and quiet performance are essential. Its compact 10.9‑inch cabinet height allows easy installation in tight ceiling plenums, while the ability to handle up to 0.8 inches of external static pressure supports a wide range of ducted layouts. Available in capacities from 7,500 to 54,000 Btuh, the MMDB‑U features an energy‑efficient DC fan motor with three fan speeds, built‑in condensate lift, and provisions for outside air connection—making it a versatile solution for commercial and light commercial spaces requiring discreet, efficient comfort control.
Designed for dependable operation, the MMDB‑U features a finned tube heat exchanger and is compatible with R‑410A refrigerant. All wiring complies with NEC requirements, and the unit is constructed in accordance with ETL and ETL Canada standards to support consistent performance in commercial environments.
Factory‑provided controls help simplify installation and system setup, reducing on‑site labor. Optional accessories, including a filter rail kit and zoning duct flange, further support efficient integration into ducted VRF system designs.
Type
Medium static ductCapacity Range
0.6 - 4.5 TonsThe MMDB‑U indoor unit is available in twelve capacities and operates on a 208–230/1/60Hz power supply to support a wide range of VRF applications.
Brochure
Toshiba Carrier VRF: K-12 Education Flyer
Toshiba Carrier VRF: Hospitality Flyer
Toshiba Carrier u-Series Marketing Brochure
Guide Specifications
TC U-Series Medium Static Duct Guide Specifications
Installation
TC U-Series Concealed Duct Indoor Unit Installation Manual
Toshiba Carrier VRF U-Series Remote Sensor Installation Manual
Wireless Remote Control Installation Manual
Application Control Board Installation Manual
Operation
Wireless Remote Control Installation Manual
Product Data
TC U-Series Concealed Duct Engineering Data Book
REVIT and 3D DRW Files
Toshiba Carrier VRF 0.6-4.5 Ton u-Series Medium Static Ducted Unit CAD Drawings
Service
TC U-Series SVM-22078 Concealed Duct Service Manual
Submittal
TC U-Series MMD-UP0071BHP-UL_01 Toshiba Carrier Concealed Duct Indoor Unit Submittal Drawing (7Kbtu)
TC U-Series MMD-UP0091BHP-UL_01 Concealed Duct Indoor Unit Submittal Drawing (9Kbtu)
TC U-Series MMD-UP0151BHP-UL_01 Concealed Duct Indoor Unit Submittal Drawing (15Kbtu)
TC U-Series MMD-UP0181BHP-UL_01 Concealed Duct Indoor Unit Submittal Drawing (18Kbtu)
TC U-Series MMD-UP0211BHP-UL_01 Concealed Duct Indoor Unit Submittal Drawing (21Kbtu)
TC U-Series MMD-UP0241BHP-UL_01 Toshiba Carrier Concealed Duct Indoor Unit Submittal Drawing (24Kbtu)
TC U-Series MMD-UP0301BHP-UL_01 Concealed Duct Indoor Unit Submittal Drawing (30Kbtu)
TC U-Series MMD-UP0361BHP-UL_01 Concealed Duct Indoor Unit Submittal Drawing (36Kbtu)
TC U-Series MMD-UP0421BHP-UL_01 Concealed Duct Indoor Unit Submittal Drawing (42Kbtu)
TC U-Series MMD-UP0481BHP-UL_01 Concealed Duct Indoor Unit Submittal Drawing (48Kbtu)
TC U-Series MMD-UP0541BHP-UL_01 Concealed Duct Indoor Unit Submittal Drawing (54Kbtu)
TC U-Series MMD-UP0121BHP-UL_01 Concealed Duct Indoor Unit Submittal Drawing (12Kbtu)
Warranty Card
Limited Warranty for Variable Refrigerant Flow Units