18,000 BTU High-Wall Ductless Mini-Split Heat Pump System with 16-Foot Installation Kit – 21 SEER2, 230V

Bring efficient, year-round comfort to your solarium or sunroom with this 18,000 BTU high-wall ductless mini-split system. Featuring inverter technology, a 21 SEER2 efficiency rating, and heat pump functionality, it provides both heating and cooling for dependable indoor climate control. The wall-mounted design preserves floor space, while the included 16-foot installation kit supports convenient system setup. Confirm room size, electrical requirements, line set compatibility, and professional installation needs before purchasing.

Summary

• High Efficiency Diamante Pro™ Ductless Mini Split Heat Pump System
• Cooling capacity: 18,000 BTU/H with 21.0 SEER2 / 10.5 EER2 efficiency
• Heating capacity: 18,000 BTU/H with 9.5 HSPF2 / 3.41 COP2 efficiency
• Voltage: 208/230V, 60Hz, 1Ph
• High Wall-Mounted Ductless Air Conditioning & Heating System
• Variable-Speed DC Inverter Driven Performance
• Factory-Precharged with Environmentally Friendly R454b Refrigerant
• Low Ambient Range Operation (As low as -4°F in Heating / As high as 122°F in Cooling)

Features

• Heat Pump with Cooling, Heating, Dry, and Ventilation Modes
• Dual-Drainage Ports
• Washable, Reusable Air Filters
• Dual-Axis Airflow (Motorized Up-Down and Left-Right Louvers)
• Functional Remote with:
  • ECO and SLEEP Modes, for Energy-Conservation
  • Timer On/Off Control
  • TURBO, for Times of High-Demand
  • Self-Clean Cycle
  • MEMORY, to Recall Favorite Settings
  • IFEEL, to Detect and Adjust to Local Temperature

Technical Information & Performance

• AHRI Certificate
• Energy Guide
• Submittal Sheet

• System Kit
  • Power Supply: 208~230V, 60Hz, 1Ph
  • Cooling Rated Capacity: 18,000 BTU/h
  • Cooling Capacity Range: 4,090~18,400 BTU/h
  • Cooling SEER2: 21.0 BTU/W.h
  • Cooling EER2: 10.5 BTU/W.h
  • Heating Rated Capacity: 18,000 BTU/h
  • Heating Capacity Range: 4,090~19,000 BTU/h
  • Heating HSPF2 (Region IV/V): 9.5 / 8.2 BTU/W.h
  • Heating C.O.P.2 (47°F/5°F): 3.41 / 1.8 W/W
  • Refrigerant Type: R454b
  • Recommended Room Size: 500~750 sq ft
  • Minimum Room Size: 40 sq ft
  • Piping Diameter: 3/8" (Gas) / 1/4" (Liquid)
  • AHRI Reference: 217048744
• Indoor Unit
  • Part Number: WT018GLSI20HLF
  • Air Flow (Turbo/Hi/Med/Lo/Mute): 617 / 575 / 511 / 411 / 382 CFM
  • Sound Level (Turbo/Hi/Med/Lo/Mute): 49 / 47 / 42 / 37 / 32 dB(A)
  • Product Dimensions (WDH): 39"-3/4 x 9" x 12"-3/8 Inches
  • Carton Dimensions (WDH): 43"-1/8 x 11"-3/4 x 15"-3/8 Inches
  • Net / Gross Weight: 27.6 / 33.7 lbs
• Outdoor Unit
  • Part Number: YN018GLSI20RPF
  • Breaker Needed: 20A (double-pole)
  • Sound Level: 55 dB(A)
  • Net Dimensions (WDH): 34" x 13"-3/4 x 23"-3/4 Inches
  • Carton Dimensions (WDH): 35"-1/2 x 16" x 27" Inches
  • Net / Gross Weight: 70.5 / 82.7 lbs

Dimension Chart