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MRCOOL DIY 5th Gen 2-Zone 48,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (12K+36K) (DIY2-B-48HP1236)
Effortless Comfort, Personalized for You. Meet the MRCOOL DIY 5th Gen Multi-Zone Mini Split System — your all-in-one solution for powerful, energy-efficient heating and cooling without the cost or complexity of professional installation.
- Dual-Zone Control: Heat or cool two different areas with ease — one up to 500 sq. ft., the other up to 1,500 sq. ft. — each with independent temperature settings for total comfort.
- True DIY Installation: Save time and money. This system is made for do-it-yourselfers — no special tools or HVAC license needed. If you can use basic hand tools, you can install it yourself.
- Energy Efficient: Achieve exceptional savings with up to 21.8 SEER2 cooling efficiency and 10 HSPF2-4 heating performance.
- Built for All Seasons: Designed to perform even in extreme weather — delivers consistent heating in temperatures as low as -13°F.
- Peace of Mind Warranty: Comes with a 7-year compressor warranty and 5-year parts coverage for long-term confidence.
The MRCOOL DIY Mini Split is the smarter, simpler, and more affordable way to enjoy personalized comfort and lower energy bills — all year round.
WHAT YOU GET:
- OUTDOOR UNIT (48K) x 1
MRCOOL DIY® 5th Gen 48,000 BTU 6-Zone Multi-Zone Mini Split Condenser 230V (DIY-MULTI6-48HP230D-O)
- INDOOR UNIT (12K) x 1
MRCOOL DIY® 5th Gen 12,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-12-HP-WMAH-230D25-O)
- INDOOR UNIT (36K) x 1
MRCOOL DIY® 5th Gen 36,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-36-HP-WMAH-230D25-O)
- REMOTE CONTROL x 2
NOTE: Line sets are not included. Please choose your line set above.
SPECIFICATIONS:
| SYSTEM OVERVIEW | |
|---|---|
| System Type | Ductless Mini Split Air Conditioner & Heat Pump |
| Zones | 2 |
| Capacity | Total: 48,000 BTU Zone 1: 12,000 BTU Zone 2: 36,000 BTU |
| Coverage Area | Total: 2,000 sq. ft. Zone 1: 500 sq. ft. Zone 2: 1,500 sq. ft. |
| Refrigerant | R-454B |
| Line Sets Included | None - Choose Your Line Sets Above! |
| Warranty | 7 Years Compressor 5 Years Parts |
| OUTDOOR UNIT (48K) x 1 | |
| Model | DIY-MULTI6-48HP230D-O |
| Dimensions | 37.48" W x 16.34" D x 52.48" H |
| Cooling Capacity | 43,000 BTU |
| SEER2 | 21.8 |
| EER2 | 12.0 |
| Heating Capacity | 48,000 BTU |
| HSPF2-4 | 10.0 |
| HSPF2-5 | 7.8 |
| Outdoor Noise Level | 64.0 dB(A) |
| Outdoor Operating Temperature | Cooling: -13°F – 122°F Heating: -13°F – 75°F |
| Voltage | 208–230V |
| Phase | 1 |
| Cycle | 60Hz |
| Min Circuit Ampacity | 40.0A |
| Max Fuse Breaker | 45.0A |
| Weight | 223.77 lbs |
| Certifications | ENERGY STAR Certified AHRI Certified UL Listed ETL Listed |
| INDOOR UNIT (12K) x 1 | |
| Model | DIY-12-HP-WMAH-230D25-O |
| Dimensions | 31.57" W x 7.44" D x 11.69" H |
| Mounting Type | Wall |
| Cooling Capacity | 12,000 BTU |
| Heating Capacity | 12,000 BTU |
| Coverage Area | 351 to 500 sq. ft. |
| Liquid Line Size | 1/4" |
| Suction Line Size | 3/8" |
| Modes | Auto Mode: Automatically selects heating or cooling based on the room's temperature. Cool Mode: Lowers the room temperature to your desired setting. Heat Mode: Raises the room temperature to your desired setting. Fan-Only Mode: Circulates air without heating or cooling. Dry Mode (Dehumidification): Reduces humidity levels in the room. Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings. |
| Weight | 24.47 lbs |
| INDOOR UNIT (36K) x 1 | |
| Model | DIY-36-HP-WMAH-230D25-O |
| Dimensions | 49.57" W x 11.1" D x 14.25" H |
| Mounting Type | Wall |
| Cooling Capacity | 36,000 BTU |
| Heating Capacity | 36,000 BTU |
| Coverage Area | 1,001 to 1,500 sq. ft. |
| Liquid Line Size | 3/8" |
| Suction Line Size | 5/8" |
| Modes | Auto Mode: Automatically selects heating or cooling based on the room's temperature. Cool Mode: Lowers the room temperature to your desired setting. Heat Mode: Raises the room temperature to your desired setting. Fan-Only Mode: Circulates air without heating or cooling. Dry Mode (Dehumidification): Reduces humidity levels in the room. Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings. |
| Weight | 48.72 lbs |
GUIDE:
Installation Manual
MRCOOL 5th Gen Brochure
Energy Guide
ARHI Certificate
Remote Control Manual
Warranty
SHIPPING POLICY:
Free Curbside Delivery
MRCOOL orders include free curbside delivery via FedEx Ground, FedEx Freight, or the most trusted carrier available. Please note that delivery is to the curbside only - be sure to arrange for assistance if needed, as the carrier will not bring items inside your home.
Tracking & Delivery Scheduling
In most cases, you will receive tracking details 3-5 business days after you place your order. When the tracking number is sent, please allow 1-2 business days for the tracking number to populate details.
RETURN POLICY:
MRCOOL returns must be requested within 30 days of your delivery date. We are unable to process returns submitted after this period. Products must be unused, uninstalled, and in their original packaging, including the box and pallet, to qualify for a return.
Restocking Fee
Please note, a 35% restocking fee will be applied to all approved returns.
Non-Returnable Items
Accessories including lineguards, wall mounts, linesets, couplers, and similar items are not eligible for return.