MRCOOL DIY Select 24K BTU Wall-Mount Air Handler 230V — Black
Component — Not a Complete System
This is the outdoor unit only. To run, you also need a matching indoor air handler and a refrigerant line set. Looking for the complete system instead? Browse complete 24,000 BTU systems.
SKU DIYS-24-B-HP-WMAH-230A13-O
We price this to your job and email you a link to purchase — usually within one business day.
Customize it — compatible add-ons only
Universally compatible tools and care items — maintenance kit, coil cleaner, install tools.
MrCool DIY factory warranty — register after install to activate the full coverage tiers.
Sizing Help
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Description
MRCOOL DIY® Select is the newest DIY single-zone platform — R-454B refrigerant, DC inverter, and an 11.5 ft pre-charged Quick Connect® line set in the box, so it installs without a vacuum pump or refrigerant license. Energy Star certified. Indoor units available in white or black.
What's in the Box
Here's what you'll receive with your order
Wall-Mount Air Handler
Indoor ductless mini-split unit
Wireless Remote Control
Handheld remote with temperature control
Mounting Plate & Hardware
Wall mounting bracket and screws
Owner Manual
Installation and operation guide
MRCOOL DIY Select 24K BTU Wall-Mount Air Handler 230V — Black — Model Details
What this specific model is sized for, how it installs, how it performs, and what it costs to run.
Room & Space Coverage — 24,000 BTU
The MRCOOL DIY Select 24K BTU Wall-Mount Air Handler 230V — Black delivers 24,000 BTU of cooling and heating capacity, sized for spaces up to 1,200 sq ft in standard 8-ft ceiling rooms with average insulation. At this capacity the unit handles medium primary rooms, master suites with attached bath, converted garages, and workshops. If your space includes a sunny west-facing wall or a finished bonus room above it, lean toward the upper end of the coverage range.
Install Difficulty — DIY-Friendly
This DIY-series system ships with a pre-charged Quick Connect line set — no HVAC license, no vacuum pump, no refrigerant gauges. The pre-charged fittings use a hand-tightened mechanical seal that a homeowner completes in 15 minutes per connection. Typical install time from unboxing to first cool air is 4–8 hours for a single-head system.
Product Details
MRCOOL DIY® Select is the newest DIY single-zone platform — R-454B refrigerant, DC inverter, and an 11.5 ft pre-charged Quick Connect® line set in the box, so it installs without a vacuum pump or refrigerant license. Energy Star certified. Indoor units available in white or black. Model DIYS-24-B-HP-WMAH-230A13-O. Specifications from the MRCOOL product catalog (2026 edition, p.5). This item is quoted to your job — request a quote and we will email you a price with a link to purchase, usually within one business day.
Frequently Asked Questions
Everything you need to know about this product
What size room will the MRCOOL DIY Select 24K BTU Wall-Mount Air Handler 230V — Black cool?
Can I install this myself without an HVAC license?
How fast does HVACZAR ship this unit?
What if it arrives damaged or I change my mind?
What is the warranty on the MRCOOL DIY Select 24K BTU Wall-Mount Air Handler 230V — Black?
How long does shipping take?
What size room does 24,000 BTU cover?
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We deliver the MRCOOL DIY Select 24K BTU Wall-Mount Air Handler 230V — Black to all 50 states via FedEx, UPS, and truck freight. Each state page lists local rebate programs and utility incentives.