MRCOOL® 36k 5th Gen DIY® Multi-Zone Bundle with (9K + 18K) Air Handlers & (25ft + 25ft) Pre-Charged R-454B Line Sets (230V) DIYM236HPW02D07

Product Description 
Model: DIYM236HPW02D07
MRCOOL DIYM236HPW02D07 – 36k 5th Gen DIY Multi-Zone Bundle with 9K + 18K & 25ft Line Sets
The MRCOOL DIYM236HPW02D07 bundle is a 5th Generation multi-zone system designed for homeowners who want real zoning, long line-set flexibility, and true DIY installation. This package pairs the 36,000 BTU DIY-MULTI5-36HP230D-O condenser with a 9,000 BTU wall-mount air handler, an 18,000 BTU wall-mount air handler, and two 25-foot pre-charged R-454B Quick-Connect® line sets (DIY25-1438-O and DIY25-1412-O).
With 25 ft of line length for both indoor units, this bundle gives you more freedom to place the air handlers where they actually make sense in the house—across the hall, around corners, or further down a wall—without having to move the condenser.
The 9K indoor unit is perfect for a bedroom, office, or small bonus room up to about 400 sq. ft., while the 18K indoor unit handles larger spaces up to roughly 800 sq. ft. like living rooms, dens, and basements. The 36k multi-zone condenser can run up to five total zones, so you can easily expand the system later with additional 5th Gen DIY air handlers.
Because everything connects using pre-charged R-454B Quick-Connect® line sets, you get a truly DIY-friendly installation with no vacuum pump, no gauges, and no refrigerant handling.
 
What’s Included in the MRCOOL DIYM236HPW02D07 Bundle
✔ 1 × 36,000 BTU 5-Zone DIY Condenser — 
DIY-MULTI5-36HP230D-O

36,000 BTU 5th Gen DIY® multi-zone condenser, 208/230V
Supports up to 5 indoor zones
High efficiency: up to 23 SEER2, 9.9 HSPF2-4
Factory-charged with R-454B, a more eco-friendly, future-ready refrigerant
Compatible with 5th Gen MRCOOL DIY air handlers (6K–36K)
Uses DIY Quick-Connect® ports—no vacuuming, brazing, or flaring
SmartHVAC® App + Amazon Alexa + Google Assistant
Quiet rotary inverter compressor
Gold Fin® corrosion-resistant coating
Ideal for total coverage up to about 1,500 sq. ft. (depending on layout and climate)

✔ 1 × 9,000 BTU DIY Wall-Mount Air Handler — 
DIY-09-HP-WMAH-230D25-O

9,000 BTU wall-mount indoor unit, 208/230V
Comfort coverage for rooms up to ~400 sq. ft.
Great for bedrooms, home offices, nurseries, and smaller bonus rooms
Works with 1/4” × 3/8” R-454B Quick-Connect line sets
Multi-speed fan with Quiet Mode for nighttime use
Follow Me® function uses the remote’s sensor for accurate comfort at your location
Dry Mode to help pull humidity out of the air
Built-in WiFi, SmartHVAC® app control, plus Alexa & Google voice control
Includes DIYPRO® cable to eliminate traditional electrical conduit

✔ 1 × 18,000 BTU DIY Wall-Mount Air Handler — 
DIY-18-HP-WMAH-230D25-O

18,000 BTU wall-mount indoor unit, 208/230V
Ideal for larger spaces up to 800 sq. ft.
Perfect for living rooms, dens, bonus rooms, and finished basements
Pairs with 1/4” × 1/2” R-454B DIY line sets
High efficiency, inverter-driven performance with ENERGY STAR® certification
Ultra-quiet indoor operation with five fan speeds
Dry Mode and Follow Me® remote comfort
WiFi built-in for SmartHVAC® app, Alexa, and Google Assistant

Includes DIYPRO® cable for a cleaner, simpler electrical run 

✔ 1 × 25ft R-454B Line Set (1/4” × 3/8”) — 
DIY25-1438-O

25-foot pre-charged R-454B Quick-Connect® line set
Sized for 6K, 9K, and 12K MRCOOL DIY indoor units
1/4” liquid line × 3/8” suction line
Factory vacuum-sealed and charged—no vacuum pump required
Quick-Connect® threaded fittings that lock to the DIY condenser and air handler

✔ 1 × 25ft R-454B Line Set (1/4” × 1/2”) — 
DIY25-1412-O

25-foot pre-charged R-454B Quick-Connect® line set
Sized for 9K, 12K, and 18K MRCOOL DIY indoor units
1/4” liquid line × 1/2” suction line
Pre-charged and sealed with R-454B
Quick-Connect® fittings for fast, no-vac DIY installation

 
Why This MRCOOL 36k 9K + 18K + 25ft Line Set Bundle Works So Well
This specific bundle configuration is ideal when:

You want one smaller zone (bedroom/office) and one larger zone (living room/den/basement)
The indoor units need to be placed further away from the outdoor condenser
You want the flexibility of 25-foot line sets from day one, without needing extensions

 
It’s a killer fit for:

Older homes without ductwork
Additions, upstairs/downstairs layouts, or split-level homes
ADUs, in-law suites, and rentals where you need two major comfort zones
DIYers wanting multi-zone comfort with minimal disruption and wiring

 
Key Benefits of the DIYM236HPW02D07 Bundle

True DIY installation using pre-charged, vacuum-free R-454B line sets
Future-proof refrigerant choice (R-454B instead of R-410A)
Zoned comfort with independent 9K and 18K control
Longer 25ft line sets for flexible indoor unit placement
Smart controls via app and voice (Alexa & Google)
Quiet operation suitable for bedrooms and living spaces
Expandable multi-zone platform – add up to 3 more indoor units later
Eligible for the care kit program

 
FAQ – MRCOOL DIYM236HPW02D07 36k 5th Gen DIY Multi-Zone Bundle

1. Can I install this MRCOOL DIY bundle myself?
Yes. This system is designed for DIY installation with pre-charged R-454B Quick-Connect® line sets, so you don’t need a vacuum pump or to handle refrigerant.
 
2. How many zones can this system support?
The DIY-MULTI5-36HP230D-O condenser can support up to 5 indoor units. This bundle uses a 9K and an 18K, leaving room to add up to three more zones later.
 
3. What room sizes are the 9K and 18K air handlers best for?

9K air handler: up to about 400 sq. ft.

18K air handler: up to about 800 sq. ft. These estimates assume average insulation and ceiling heights.

  
4. Why are 25ft line sets important?
The 25ft DIY25-1438-O and DIY25-1412-O line sets give you more flexibility to locate the indoor units further from the outdoor condenser, which is helpful for side yards, back patios, and longer wall runs.
 
5. Do I need to vacuum the line sets before opening the valves?
No. The line sets are factory vacuumed and pre-charged, so you simply connect, torque to spec, and open the valves according to the MRCOOL instructions.
  
6. What refrigerant does this system use?
This 5th Gen MRCOOL system uses R-454B, which is the newer, lower-GWP replacement for R-410A.
 
7. Is this system quiet enough for bedrooms?
Yes. Both air handlers feature Quiet Mode and low sound levels suitable for sleeping areas and living spaces.
 
8. Does the system dehumidify as well as cool?
Yes. Use DRY MODE to focus on humidity removal while still keeping the space comfortable.
 
9. Can I control each zone separately?
Yes. Each indoor unit has its own remote and its own WiFi control, so you can set different temperatures and schedules per room.
 
10. Is smart home control included?
Yes. The air handlers are compatible with the SmartHVAC® App, Amazon Alexa, and Google Assistant.
 
11. 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 correctly.
 
12. What warranties come with this bundle?
Typically:

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

 
13. Is this setup good for a small home or duplex?
Yes. A 9K + 18K + 36k condenser is an excellent 2-zone configuration for smaller homes, duplexes, apartments, or main living + bedroom setups.
 
14. Do I need an electrician for the outdoor unit?
If you are not comfortable working with 230V circuits and breakers, you should hire a licensed electrician to complete the power connection.

 
Why Buy From MRCOOL DIRECT?
When you buy from MRCOOL Direct, you’re purchasing from a trusted authorized MRCOOL dealer, which means:

Your warranty is protected – No grey-market or unauthorized seller issues
Brand-new, factory-fresh units – Never refurbished or previously installed
Fast U.S. shipping – Most in-stock orders ship in 1–3 business days
Financing options – Break your purchase into affordable monthly payments
Real support – Help with sizing, bundle selection, and DIY questions
Better than big box or marketplaces – No third-party sellers, no random returns, just genuine MRCOOL systems backed by real HVAC knowledge

 
BUY DIRECT!
Feel Free to call us anytime. Family Friendly help just a dial away. We love talking HVAC615-553-8118
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