Product overview
MRCOOL DIY 5th Gen Multi-Zone 6-Zone 48,000 BTU 22 SEER2 Ductless Mini-Split Air Conditioner And Heat Pump (6K + 6K + 6K + 12K + 12K + 12K)Â
The heart of this system is a high-performance 48,000 BTU multi-zone condenser, engineered to provide robust climate control for up to six independent zones. Utilizing advanced Inverter technology, the unit intelligently modulates its power consumption to match the real-time cooling or heating demands of your space, resulting in significant energy savings and whisper-quiet operation. Designed for durability and long-term reliability, the exterior housing features enhanced corrosion resistance, making it suitable for a wide range of climates while maintaining peak efficiency even in extreme ambient temperatures. This is backed by a 7 year compressor warranty and a 5 year optional parts warranty.
Take full control of your home’s climate with the MRCOOL DIY 5th Gen Multi-Zone 6-Zone 48,000 BTU Ductless Mini-Split System. Perfect for large homes or commercial buildings, this system allows you to connect up to six wall-mounted air handlers. This configuration is 9K + 9K + 9K + 12K + 12K + 12K.
You won’t need the services of an HVAC professional when you’re setting this unit up, because you can do it yourself, which saves lots of time and money! This condenser enables you to heat and cool up to 6 separate spaces equalling up to 2,000 sq. ft., meaning you’d be able to cover an entire home in the completely efficient comfort of a single DIY® system. You can install this system on your own because our innovative, patented pre-charged Quick Connect® line sets allow you to skip the lengthy and complicated process of evacuating and charging the system.
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Key Features:
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48,000 BTU condenser supports six zones
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SEER2 rating up to 21.5 for top-tier efficiency
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Compatible with 6K–24K BTU wall-mounted indoor units
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True DIY® installation with pre-charged line sets
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Wi-Fi control via MRCOOL app, Alexa, or Google Assistant
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Gold Fin® anti-corrosion technology
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Auto mode, sleep mode, and louver memory functions
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Low ambient cooling and heating (as low as 5°F)
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What’s Included:
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(1) 48K BTU 5th Gen Multi-Zone DIY Condenser
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(6) Wall-Mounted Air Handlers (9K + 9K + 9K + 12K + 12K + 12K)
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(6) Remotes
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Full installation accessories
Brochure & Guides:
Specifications:
| BRAND NAME | MRCOOL |
| SERIES |
DIY 5th gen Multi-Zone Mini-splits
|
| MODEL | DIY-MULTI6-48HP230D-O |
| GTIN | 840255587471 |
| UPC | 840255587471 |
| SHORT DESCRIPTION |
MRCOOL® 48k DIY 5th Generation 6 Zone Multi-Zone Mini-Split Condenser 230v
|
| SEER2 | 21.8 |
| EER2 | 12 |
| HSPF2-4 | 10 |
| HSPF2-5 | 7.8 |
| TONNAGE | 4 |
| COOLING CAPACITY (BTU) | 43000 |
| HEATING CAPACITY (BTU) | 48000 |
| VOLTAGE (V) | 208/230 |
| PHASE | 1 |
| CYCLE | 60 |
| MAX FUSE BREAKER (A) | 45 |
| MIN CIRCUIT AMPACITY (A) | 40 |
| COLOR | White |
| ZONE CAPACITY | 6 |
| REFRIGERANT TYPE | R-454B |
| REFRIGERANT VOLUME (OZ) | 148.15 |
| DECIBEL RATING (DBA) | 64 |
| INVERTER | DC |
| LINE SET LENGTH | 25 |
| MAX LINESET LENGTH (FT) | 221.4 |
| LIQUID LINE SIZE | 1/4 |
| SUCTION LINE SIZE | (3/8 X4) (1/2 X2) |
| COMPRESSOR MOTOR TYPE | Rotary |
| AUXILIARY HEATER INCLUDED | No |
| AUXILIARY HEATER AVAILABLE | No |
| FAN ONLY OPTION | Yes |
| QUIET MODE | Yes |
| AUTO COOL | Yes |
| WIFI COMPATIBILITY | Yes |
| APP COMPATIBILITY | Yes |
| WORKS WITH IOS | Yes |
| WORKS WITH ANDROID | Yes |
| UL LISTED | Yes |
| ETL LISTED | Yes |
| ENERGY STAR CERTIFIED | Yes |
| AHRI CERTIFIED | Yes |
| REGISTERED WARRANTY | Extended Limited Lifetime* |
| BASE PARTS WARRANTY | 5 |
| BASE COMPRESSOR WARRANTY | 7 |
| HAS BATTERIES | Yes |
| CONTAINS ELECTRONICS | Yes |
| CONTAINS CHEMICALS | Yes |
| CONTAINS AEROSOL | Yes |
| CONTAINS COMPRESSED GAS | Yes |
| PROPOSITION 65 WARNING | Yes |
| NET DEPTH (IN) | 16.34 |
| NET HEIGHT (IN) | 52.48 |
| NET WIDTH (IN) | 37.48 |
| NET WEIGHT (LBS) | 223.77 |
| GROSS DEPTH (IN) | 19.49 |
| GROSS HEIGHT (IN) | 58.27 |
| GROSS WIDTH (IN) | 43.11 |
| GROSS WEIGHT (LBS) | 256.39 |
In-stock systems ship fast and free with curbside freight delivery, typically arriving in 4–10 days. Please inspect each box at delivery and note any damage on the receipt before signing — it keeps any freight claim quick and simple.
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At a glance
Tech specs
| Condenser capacity | 48,000 |
|---|---|
| Indoor unit(s) | 9K + 9K + 9K + 12K + 12K + 12K |
| Coverage area | 2,000 Sq Ft. |
| Zones / rooms | 6 Zones |
| Efficiency | 22 SEER2 · ENERGY STAR certified |
| Power | 230 Volt |
| Line set | Custom |
| Mount type | Wall |
| Installation | DIY Installation |
| Brand | MRCOOL |
Sizing in doubt? Our HVAC experts confirm capacity for your rooms before you order — free. Ask us about utility rebates for high-efficiency heat pumps in your area.
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See it done
Watch the full DIY install
Every step, start to finish — most homeowners wrap a single zone in a weekend.
