HOT ! MRCOOL DIY 5th Gen 4‑Zone 48,000 BTU 21.8 SEER2 Ductless Mini‑Split Air Conditioner & Heat Pump – DIYM448HPW00D216

MRCOOL DIY 5th Gen 4‑Zone 48,000 BTU 21.8 SEER2 Ductless Mini‑Split Air Conditioner & Heat Pump – DIYM448HPW00D216

The MRCOOL DIY® 5th Gen 48,000 BTU 4‑Zone Mini‑Split Air Conditioner & Heat Pump (Model DIYM448HPW00D216) delivers customizable zone‑by‑zone comfort and energy‑efficient performance for homes and spaces needing versatile climate control. Designed with the DIY installer in mind, this multi‑zone system pairs a high‑efficiency condenser with multiple indoor air handlers, allowing precise temperature control across bedrooms, living areas, offices, or bonus rooms while reducing utility costs.

Installation is simplified thanks to MRCOOL’s QuickConnect® pre‑charged line sets and DIYPRO® cable, which eliminate the need for vacuum pumps, refrigerant handling, and conduit — making professional‑grade comfort achievable without specialized tools or HVAC licensing. The system’s DC inverter technology and 21.8 SEER2 rating ensure whisper‑quiet operation and year‑round performance, whether cooling on hot summer days or warming during chilly nights.

Features

• 48,000 BTU total system capacity


• 4 independently controlled comfort zones


• Three 6,000 BTU zones + one 18,000 BTU zone


• 21.8 SEER2 high-efficiency performance


• DC inverter variable-speed compressor


• DIY® QuickConnect® pre-charged line sets


• No vacuum pump or HVAC license required


• DIYPRO® cable (no conduit needed)


• Gold Fin® anti-corrosion coating


• Follow Me® temperature sensing


• MRCOOL® Smart HVAC Controller® App


• Amazon Alexa® & Google Home® compatible


• ENERGY STAR® & AHRI certified

Specifications

What’s Included 

• ✔ MRCOOL® DIY® 48,000 BTU Multi-Zone Outdoor Condenser


• ✔ (3) 6,000 BTU Wall-Mounted Indoor Air Handlers


• ✔ (1) 18,000 BTU Wall-Mounted Indoor Air Handler


• ✔ (3) 25-ft DIY® QuickConnect® Line Sets (1/4 × 3/8) — for 6K air handlers


• ✔ (1) 25-ft DIY® QuickConnect® Line Set (1/4 × 1/2) — for 18K air handler


• ✔ DIYPRO® communication cable


• ✔ Wireless remotes for each zone


• ✔ Installation manuals & mounting hardware

Frequently Asked Questions (FAQ\'s)

Is this system truly DIY?

Yes. MRCOOL® DIY® QuickConnect® technology eliminates vacuuming and refrigerant charging.

Can each room be controlled independently?

Yes. Each air handler has its own thermostat, remote, and scheduling capability.

Why mix 6K and 18K air handlers?

This provides precise comfort in smaller rooms while supplying higher capacity for larger shared spaces.

Does this system work with smart home platforms?

Yes. Compatible with Alexa®, Google Home®, and the MRCOOL® Smart HVAC Controller® App.