MIDEA 18K One-Way Cassette Multi-Zone Indoor Unit
SKU: DLFSOAH18XAK
MIDEA 18K One-Way Cassette Multi-Zone Indoor Unit – Model DLFSOAH18XAK
Product Overview
- Series: Midea One-Way Cassette Series
- System Type: Multi-zone ductless mini-split one-way cassette heat pump indoor unit
- Application: Residential and light commercial heating and cooling
- Nominal Cooling Capacity: 18,000 BTU/h
Capacity & Performance
- Cooling Capacity: 18,000 BTU/h
- Heating Capacity:
- 21,000 BTU/h at 47°F (8.3°C)
- 18,000 BTU/h at 17°F (-8.3°C)
- 15,500 BTU/h at 5°F (-15°C)
- 14,000 BTU/h at -13°F (-25°C)
Efficiency Ratings
- SEER2: 25.0 BTU/Wh
- EER2: 12.5 BTU/Wh
- HSPF2: 11.0 BTU/Wh
- COP at 5°F: 2.5
Electrical & Power
- Voltage: 208/230V, single-phase, 60Hz
- Power Supply: Indoor unit is powered via the outdoor unit
- Power Input:
- Cooling: 1,650W
- Heating: 1,750W
- Circuit Breaker Requirement: 20A
- Indoor Fan Motor Output: 45W
Refrigerant & Piping
- Refrigerant Type: R-410A
- Piping Connection Sizes:
- Liquid Line: 1/4 inch
- Suction Line: 1/2 inch
- Refrigerant Charge:
- Pre-charged for a standard 25-ft line
- Additional charge required for lengths beyond 25 ft
- Maximum Recommended Piping Length: 98.4 ft
- Maximum Height Difference: 65.6 ft
Physical & Mechanical Characteristics
- Dimensions:
- Width: 30.31 inches (770 mm)
- Height: 10.24 inches (260 mm)
- Depth: 22.44 inches (570 mm)
- Weight:
- Net Weight: ~37.5 lbs (17.0 kg)
- Gross Weight: ~44.1 lbs (20.0 kg)
Mounting & Installation
- Mounting Method: Ceiling-recessed one-way cassette installation
- Wall Penetration: Requires a circular opening (~3 to 3.5 inches diameter) for refrigerant piping, drain hose, and control wiring
- Clearance Requirements:
- Minimum clearance of ~5.9 inches (15 cm) for return airflow
- Additional side and rear clearances required (detailed in installation manual)
Control Features & Operating Modes
- Operating Modes: Cool, Heat, Dry, Fan, Auto
- Key Features:
- One-way air distribution for targeted airflow
- Built-in condensate pump for effective drainage
- Microprocessor control with wireless remote
- Auto-restart after power loss
- Refrigerant leakage detection
- "Follow Me" temperature sensing (uses remote as sensor)
- Integrated, washable air filter
- Noise Level: As low as ~27 dB(A) in low-speed sleep mode
PRODUCT RESOURCES
The following documents may not be readily available online. For specific manuals or certifications, we recommend contacting Midea customer support or an authorized Midea dealer:
- Brochure
- Submittal
- Installation Manual
- Owner's Manual
- Service Manual
- Parts Manual
- AHRI Certificate
- Extended Ratings
Safety Information
PROPOSITION 65 WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
- This unit must be installed by a licensed HVAC technician to ensure proper operation and to avoid voiding the warranty.
- Ensure the product is connected to the correct voltage and electrical specifications to prevent electrical hazards.
- Do not attempt to modify or service internal components without professional assistance.
- The unit is designed to operate in temperatures ranging from -4°F to 115°F.
- Always refer to the installation manual for detailed safety instructions.
PAIRING
DLFSOAH18XAK (18K BTU One-Way Cassette) pairs with DLCSRBH18AAK (Current Loop U-match Outdoor Unit)