MRCOOL® 36k 5th Gen DIY® Multi-Zone Bundle with (9K + 24K) Air Handlers & (16ft + 16ft) Pre- Charged R-454B Line Sets (230V)- DIYM236HPW03D00

Product Description 

Model: DIYM236HPW03D00

 MRCOOL DIYM236HPW03D00 – 36k 5th Gen DIY Multi-Zone Bundle with 9K + 24K & 16ft Line Sets

The MRCOOL DIYM236HPW03D00 bundle is a 5th Generation multi-zone DIY system designed for homeowners who want two serious comfort zones, high efficiency, and true do-it-yourself installation. This package combines the 36,000 BTU DIY-MULTI5-36HP230D-O multi-zone condenser with a 9,000 BTU wall-mount air handler, a 24,000 BTU wall-mount air handler, and two 16-foot pre-charged R-454B Quick-Connect® line sets (DIY16-1438-O and DIY16-3858-O).

The 9K indoor unit is ideal for a bedroom, office, or flex room up to 400 sq. ft., while the 24K indoor unit is built to handle larger spaces up to 1,050 sq. ft., like a living room, great room, or big open area. Together, they give you powerful two-zone control, with plenty of capacity remaining on the 36k condenser to add more indoor units later (up to 5 zones total).

Thanks to MRCOOL’s pre-charged R-454B Quick-Connect® line sets, this system is built for true DIY installation—no vacuum pump, no gauges, and no refrigerant handling required.

What’s Included in the MRCOOL DIYM236HPW03D00 Bundle

✔ 1 × 36,000 BTU 5-Zone DIY Condenser — 

DIY-MULTI5-36HP230D-O

• 36,000 BTU 5th Gen DIY® multi-zone condenser, 208/230V, 1-phase
• Supports up to 5 indoor zones from one outdoor unit
• High efficiency: 23 SEER2, 12 EER2, 9.9 HSPF2-4
• Factory-charged with R-454B, a more efficient and future-ready refrigerant
• Uses DIY Quick-Connect® ports with pre-charged line sets
• SmartHVAC® app control plus Amazon Alexa and Google Assistant support
• Quiet, inverter-driven rotary compressor
• Gold Fin® corrosion-resistant outdoor coating
• Ideal capacity for homes up to around 1,500 sq. ft., depending on layout

Electrical (Condenser):

• Voltage: 208/230V, 1-Phase, 60 Hz
• Minimum Circuit Ampacity (MCA): 30.5A
• Maximum Fuse / Breaker: 35A
  Always follow MRCOOL’s installation manual and local electrical codes when sizing wire and breakers. 

✔ 1 × 9,000 BTU DIY Wall-Mount Air Handler — 

DIY-09-HP-WMAH-230D25-O

• 9,000 BTU wall-mounted indoor unit, 208/230V
• Ideal coverage: up to ~400 sq. ft.
• Great for bedrooms, offices, nurseries, and small bonus rooms
• Pairs with 1/4” × 3/8” R-454B DIY line sets (DIY16-1438-O)
• Multi-speed fan with Quiet Mode
• Follow Me® remote temperature sensing for better comfort where you are
• Dry Mode for dehumidification during humid days
• Built-in WiFi with SmartHVAC® app control, plus Alexa & Google voice control
• Includes DIYPRO® cable, reducing the need for traditional electrical conduit 

✔ 1 × 24,000 BTU DIY Wall-Mount Air Handler — 

DIY-24-HP-WMAH-230D25-O

• 24,000 BTU wall-mounted indoor unit, 208/230V
• Ideal coverage: up to ~1,050 sq. ft.
• Great for large living rooms, open-concept areas, basements, and big bonus rooms
• 2-ton rated capacity, ENERGY STAR® Certified for high efficiency
• Uses 3/8” × 5/8” R-454B Quick-Connect line sets (DIY16-3858-O)
• Extremely quiet operation with five fan speeds
• Follow Me® function for smarter temperature control
• Dry Mode for moisture control
• Built-in WiFi, SmartHVAC® app, Alexa, and Google Assistant compatible
• Includes DIYPRO® cable for a clean, durable electrical connection 

✔ 1 × 16ft R-454B Line Set (1/4” × 3/8”) — 

DIY16-1438-O

• 16-foot pre-charged R-454B Quick-Connect® line set
• Sized for 6K, 9K & 12K MRCOOL DIY indoor units
• 1/4” liquid line × 3/8” suction line
• Factory vacuum-sealed and pre-charged—no vacuum pump needed
• White insulated jacket with Quick-Connect® threaded fittings 

✔ 1 × 16ft R-454B Line Set (3/8” × 5/8”) — 

DIY16-3858-O

• 16-foot pre-charged R-454B Quick-Connect® line set
• Sized for 24K & 36K MRCOOL DIY indoor units
• 3/8” liquid line × 5/8” suction line
• Pre-charged, sealed, vacuum-free design
• Quick-Connect® fittings designed to pair directly with the DIY condenser and 24K air handler 

Why This 9K + 24K 36k Bundle Works So Well

This bundle is dialed in for homeowners who want:

• A smaller zone (9K) for a bedroom, office, or secondary room
• A larger zone (24K) for the main living space, basement, or open-concept area
• The efficiency and flexibility of a 36k multi-zone system that still has capacity to add more indoor units later

It’s a fantastic fit for:

• Small to mid-size homes with two primary zones
• Older homes without existing ductwork
• ADUs, in-law suites, duplexes, and rental properties
• DIYers who want to save thousands on labor while still getting a pro-level system

 

 Key Benefits of the DIYM236HPW03D00 System

• True DIY installation with pre-charged R-454B Quick-Connect® line sets
• High-efficiency 5th Gen inverter technology for year-round heating and cooling
• Future-ready R-454B refrigerant instead of R-410A
• Zoned comfort with independent 9K and 24K operation
• Smart control with WiFi, app, and voice compatibility
• Quiet operation suitable for both bedrooms and living spaces
• Expansion ready—up to 5 total zones on the 36k condenser
• Eligible for the care kit program

 

FAQ – MRCOOL DIYM236HPW03D00 36k 5th Gen DIY Multi-Zone Bundle

  

1. Can I install this MRCOOL DIY bundle myself?

Yes. This system is built for DIY installation using MRCOOL’s pre-charged R-454B Quick-Connect® line sets. No vacuum pump or refrigerant handling is required.

 

2. How many zones can the DIY-MULTI5-36HP230D-O condenser support?

This 36k outdoor unit supports up to 5 indoor zones. This bundle uses a 9K and a 24K, leaving capacity for additional air handlers in the future.

 

3. What room sizes are the 9K and 24K air handlers best for?

• 9K air handler: up to about 400 sq. ft.
• 24K air handler: up to about 1,050 sq. ft.
  Actual coverage depends on insulation, windows, and climate.

4. What is the minimum and maximum breaker size for the condenser?

The condenser is rated for:

• Minimum Circuit Ampacity (MCA): 30.5A
• Maximum Fuse / Breaker: 35A
  Always follow MRCOOL’s installation manual and local electrical codes when sizing wire and breakers.

 

5. How long are the included line sets?

This bundle includes:

• DIY16-1438-O: 16ft 1/4” × 3/8” line set (for the 9K)
• DIY16-3858-O: 16ft 3/8” × 5/8” line set (for the 24K)

 

6. Can I extend the line sets beyond 16 feet?

Yes. MRCOOL offers DIY coupler kits and additional pre-charged line sets, as long as you stay within the condenser’s maximum allowable line-set length and design limits.

 

7. Is R-454B better than R-410A?

R-454B is more efficient and has a significantly lower global warming potential than R-410A, and it’s the new standard for many modern systems.

 

8. Is the system quiet enough for bedrooms?

Yes. The 9K and 24K indoor units feature Quiet Mode and very low sound levels, making them suitable for bedrooms and living spaces.

 

9. Does this system dehumidify as well as cool?

Yes. Use DRY MODE for enhanced humidity removal, which is particularly helpful in humid climates.

 

10. Can I control each zone separately?

Yes. Each indoor unit has its own remote and WiFi control, so you can set different temperatures and schedules for the 9K and 24K zones.

 

11. Does this bundle support smart home integration?

Yes. The air handlers are compatible with the SmartHVAC® App, Amazon Alexa, and Google Assistant.

 

12. Will my warranty be valid if I buy from MRCOOL Direct?

Yes. MRCOOL Direct is an authorized MRCOOL dealer, so your warranty is fully supported when installed and registered properly.

 

13. What warranties are included?

Typical MRCOOL DIY coverage includes:

• 5-Year Parts Warranty
• 7-Year Compressor Warranty
• Eligible for the care kit program

14. Is this bundle good for a small home or main living + bedroom setup?

Yes. A 9K + 24K paired with a 36k multi-zone condenser is a fantastic two-zone solution for small homes, apartments, duplexes, or a main living area plus a primary bedroom.

 

15. Do I need an electrician to install the power to the condenser?

If you’re not experienced with 208/230V electrical work, you should hire a licensed electrician to install the breaker, disconnect, and wiring for the condenser.

 

Why Buy From MRCOOL DIRECT?

Buying from MRCOOL Direct means you’re getting:

• ✅ Authorized MRCOOL Dealer – Your warranty stays 100% valid
• ✅ Factory-fresh 2025 inventory – No refurbished or open-box surprises
• ✅ Fast U.S. shipping – Most in-stock units ship in 1–3 business days
• ✅ Financing options – Make high-efficiency comfort more affordable
• ✅ Real support – Help with sizing, bundle selection, and DIY questions
• ✅ No third-party sellers – Just genuine MRCOOL equipment, direct from a trusted dealer

 

BUY DIRECT!

Feel Free to call us anytime. Family Friendly help just a dial away. We love talking HVAC
615-553-8118