Product Description

5th Generation MRCOOL DIY 18K BTU Single Zone Mini-Split Air Handler

Overview

Meet the 5th generation MRCOOL DIY 18K BTU single-zone mini-split air handler. It heats and cools spaces from 500 to 750 sq ft. Control it with a wireless remote, the SmartHVAC app, or voice commands. Built for reliability and efficiency, it comes with an industry-leading warranty.

Benefits

  • Easy DIY installation — simple, tool-free setup with no prior experience required.
  • Space coverage — ideal for spaces 500–750 sq ft.
  • Energy efficient — designed to save on energy costs.
  • Low environmental impact — uses R-454B refrigerant with lower GWP.
  • Convenient controls — wireless remote, SmartHVAC app (iOS/Android), or voice commands.
  • Follow Me comfort — remote-based airflow adjustments for consistent comfort.
  • Humidity control — Dry Mode reduces excess moisture for better air quality.
  • Warranty peace of mind — comprehensive coverage including lifetime, 7-year compressor, and 5-year parts warranties.
  • Quality and safety — Intertek-listed (5031495) for standards compliance.

Features

  • Effortless DIY Installation: Simple, tool-free setup with no prior experience required.
  • QuickConnect Line Set: Compatible with DIY line sets pre-charged with R-454B refrigerant for fast, vacuum-free installation.
  • Eco-Friendly Refrigerant: Uses R-454B refrigerant with lower Global Warming Potential (GWP) than R-410A.
  • Durable DIYPRO Cable: Eliminates the need for electrical conduit and protects against outdoor conditions and wildlife.
  • Convenient Wireless Controls: Control via included remote, SmartHVAC app (iOS/Android), or voice commands with Alexa and Google Assistant.
  • Follow Me Function: Keeps you comfy by adjusting airflow based on the remote's location.
  • Dry Mode: Dehumidifies to improve indoor air quality.
  • Comprehensive Warranty Coverage: Lifetime limited warranty, 7-year compressor warranty, and 5-year parts warranty.
  • Certified for Quality and Safety: Intertek-listed (5031495).

Specifications

Dimensions & Weight
Dimensions 42.52 W" x 8.90 D" x 13.19 H"
Mount Type Wall
Weight 35.49 lbs / 16.1 kg
Capacity & Performance
Cooling Capacity 18,000 BTU
EER2 13.7
SEER2 22.5
Heating Capacity 18,000 BTU
HSPF2-4 11.5
HSPF2-5 8.5
Coverage Area 500 to 750 sq ft.
Indoor Noise Level (Hi/Mi/Lo) 54.5/44.5/40.5/30.5/19.0 dB(A)
Number of Speeds 5
Electrical Requirements
Voltage 208-230V
Phase 1
Cycle 60 Hz
Max Fuse Breaker 15A
Min Circuit Ampacity 3A
Refrigerant & Piping
Refrigerant Type R-454B
Liquid Line Size 1/4"
Suction Line Size 1/2"
Features
Fan Only Option Yes
Quiet Mode Yes
Auto Cool Yes
Wifi Compatibility Yes
App Compatibility Yes
Works with IOS Yes
Works with Android Yes
Remote Control Included Yes
Certifications & Warranty
Certifications UL Listed, ETL Listed, Energy Star Certified, AHRI Certified
Warranty 7 Years Compressor
5 Years Parts
Extended Limited Lifetime Replacement
*If the original owner does not register the unit, the warranty defaults to the standard 5 year parts, 7 year compressor warranty
**The original, registered owner must be enrolled in the MrCool Care Program every year in order to qualify for the 7 year full unit replacement for compressor failure and lifetime compressor replacement.

Information and Guides

Brochure

Installation Manual

Warranty Document

Remote Manual

Smart Controller Manual

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