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Smart 20 Series

The newest line form Willis is the Smart 16 & 20, an ultra thin inverter mini-split featuring a sleek design with a width of less than 6 inches for the indoor units. These new units are 2 to 4 inches thinner than most models on the market to provide a more modern look that fits with any décor,. The units adopt stylish high-gloss panels with new wear resistant material and a hidden edgeless LED display making the appearance stand out from the competition. While most split type air conditioners in the market can only achieve “updown” swing function for air distribution. The new Smartt 16 units feature an additional “Left-right” swing function so that the air can be distributed freely from different directions. The swing from bottom to top and from left to right can be controlled individually, providing a three-dimensional air supply and creating a comfortable environment without any potential “blind” spot. The units also feature a step-less speed control fan motors, which outperform traditional 3-4-or or 5-step fans

FEATURES

• Smart Design For Easy Maintenance
Wifi
• Low Voltage Start-up
• Intelligent Defrost
• Intelligent Pre-heating
• Comfortable Sleep Mode
• Auto Swing (Vertical)
• Multiple Fan Speeds
• Dehumidify
• Soft Start
• LED Display
• Automatic Operation
• Self-diagnosis
• Memory Function
• Timer
• Control Lock
• Fan Delay Function

SPECIFICATIONS

MODEL
WSM09MH20S WSM12MH20S WSM18MH20S WSM24MH20S
Power Supply 208-230V, 60Hz, 1Ph 208-230V, 60Hz, 1Ph 208-230V, 60Hz, 1Ph 208-230V, 60Hz, 1Ph
Rated Current Cooling A 2.9 4.3 6.3 8.6
Rated Current Heating A 4.1 4.8 7.5 10.9

System Performance
Dehumidification pt/h 2.11 2.54 3.80 5.49
Cooling Capacity (Min-Max) Btu/h 9,000 (4,000 – 11,000) 12,000 (3,000 – 14,000) 18,000 (5,000 – 20,000) 24,000 (8,000 – 26,000)
Heating Capacity (Min-Max) Btu/h 9,800 (4,000- 12,500) 12,000 (4,000- 14,000) 18000 (6,000- 21,000) 25,000 (9,000- 29,500)
SEER/EER 20.5 / 14 20.7 / 12.5 22 / 13 20 / 12.5
HSPF/COP 10 / 3.4 9.6 / 3.45 10 / 3.31 10 / 3.14

Indoor Unit
Airflow CFM 271 / 229 / 165 306 / 265 / 200 589 / 483 / 353 589 / 483 / 354
Sound Pressure Level db(A) 39.5 / 34 / 25 39.5 / 35 / 28 47 / 41 / 32 47 / 41 / 33
Unit Dimension inch 31.65 x 7.60 x 11.81 31.65 x 7.60 x 11.81 43.54 x 9.13 x 13.46 43.54 x 9.13 x 13.46
Net/Gross Weight lbs 18.74 / 22.49 18.74 / 22.49 95.90 / 7.60 95.90 / 7.60

Outdoor Units
Compressor Type ROTARY ROTARY ROTARY ROTARY
Sound Pressure Level db(A) 55.5 54.5 59 59
Unit Dimensions inch 30.31 x 11.81 x 21.85 31.50 x 13.11 x 21.81 33.27 x 14.29 x 27.64 40.55 x 16.54 x 31.89
Net/Gross Weight lbs 63.9 / 69.4 81.6 / 88.2 101.0 / 108.2 136.69 / 147.27
Refrigerant / Charge oz. R410A / 38.8 R410A / 40.6 R410A / 68.8 R410A / 82.9
Line Set Size
(Liquid – Suction)
inch 1/4 – 3/8 1/4 – 1/2 1/4 – 1/2 3/8 – 5/8
Max. Line Run ft 82 82 98 164
Max. Elevation ft 33 33 66 82
MCA A 10 12 15 18
MOCP A 15 15 20 25
Wire Size / # Wires 16AWG*4 Stranded, Unshielded