Mitsubishi MUY-GX18NL-U1 18,000 BTU Cooling Only Outdoor Unit - R454B - MUYGX18NLU1
Deliver dependable, high-capacity cooling to larger spaces with the Mitsubishi MUY‑GX18NL, a robust outdoor unit designed for single-zone, cooling-only applications in residential or light commercial environments.
Powerful Single-Zone Cooling
With a capacity of 18,000 BTU, the MUY‑GX18NL is ideal for cooling areas up to 750 sq ft when paired with a compatible MSY-GX indoor unit. It's perfect for homes in warm climates or spaces that don't require heating.
Compact & Quiet Design
Despite its high output, this outdoor unit maintains a compact footprint and operates quietly—making it suitable for installations on patios, balconies, or near living spaces without causing disruption.
Energy-Efficient Operation
Equipped with Mitsubishi’s INVERTER-driven compressor, the MUY‑GX18NL offers precise temperature regulation and energy-efficient performance, even during extended use.
Mitsubishi Warranty Assurance
Includes a 10-year parts warranty when installed and registered by a licensed contractor, ensuring years of reliable, high-performance cooling.
What Our Experts Think
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18,000 BTU outdoor unit for single-zone cooling.
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Designed for residential and light-commercial spaces.
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High-capacity cooling ensures comfort in larger rooms.
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Uses eco-friendly R‑454B refrigerant.
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Quiet, reliable, and energy-efficient operation.
Q&A
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Q: What size space is this unit suitable for?
A: Ideal for medium to large rooms up to ~900 sq ft.
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Q: Is this unit cooling only?
A: Yes, designed exclusively for cooling applications.
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Q: Can it be paired with multiple indoor units?
A: Compatible with single-zone wall-mounted or ceiling cassette indoor units.
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Q: Is it energy-efficient?
A: Yes, optimized for high-efficiency cooling with R‑454B refrigerant.
Maintenance Tips
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Keep the outdoor unit free from debris for proper airflow.
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Clean the coil regularly to maintain efficiency.
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Inspect refrigerant lines and insulation periodically.
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Schedule annual professional service for optimal performance.
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Ensure proper clearance around the unit for easy maintenance and operation.
