The Toshiba Carrier MMC1‑U u‑Series underceiling indoor unit is designed for exposed ceiling installations where flexible placement and consistent comfort are required. Available in multiple capacities, the MMC1‑U operates on 208–230V power and features an energy‑efficient DC motor, multiple fan speeds, and adjustable louver control to support even airflow distribution. Built with a finned tube heat exchanger and constructed to meet NEC and ETL standards, the MMC1‑U delivers reliable performance for commercial and light commercial VRF system applications.
Designed with a finned tube heat exchanger and compatible with R‑410A refrigerant, the MMC1‑U supports dependable long‑term performance. The unit is constructed to meet NEC wiring requirements as well as ETL and ETL Canada standards.
Factory‑provided controls help streamline installation and system integration. Optional accessories, including a wireless controller, drain pump, and elbow kit, further support flexible installation requirements for exposed underceiling applications.
Type
UnderceilingCapacity Range
1.5 - 4.0 TonsThe MMC1‑U underceiling indoor unit delivers efficient, adaptable comfort for VRF systems, with multiple capacities & flexible exposed ceiling installation.
Installation
Toshiba Carrier VRF U-Series Remote Sensor Installation Manual
TC U-Series Underceiling Installation Manual
TC U-Series 4-Way Installation Manual/Wireless Receiver (RBC-AXU31UP-UL)
Compact 4 Way Cassette Occupancy Sensor Kit (TCB-SIR41UMP-UL Installation Manual
Wireless Remote Control Installation Manual
Application Control Board Installation Manual
Operation
TC U-Series OM Indoor Unit Owners Manual -Underceiling Unit/RBC-ACU33CP-UL)
Wireless Remote Control Installation Manual
Product Data
TC U-Series Underceiling Engineering Data Book
REVIT and 3D DRW Files
Toshiba Carrier VRF 1.5-4.0 Ton u-Series Underceiling Unit CAD Drawing
Service
TC U-Series SVM-22077 Underceiling Service Manual
Submittal
TC U-Series MMC-UP0181HP-UL-01 Underceiling Indoor Unit Submittal Drawing (18Kbtu)
TC U-Series MMC-UP0241HP-UL-01 Underceiling Indoor Unit Submittal Drawing (24Kbtu)
TC U-Series MMC-UP0301HP-UL-01 Underceiling Indoor Unit Submittal Drawing (30Kbtu)
TC U-Series MMC-UP0361HP-UL-01 Underceiling Indoor Unit Submittal Drawing (36Kbtu)
TC U-Series MMC-UP0481HP-UL-01 Underceiling Indoor Unit Submittal Drawing (48Kbtu)
Warranty Card
Limited Warranty for Variable Refrigerant Flow Units