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MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump
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MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump

Regular price
$2,469.00
Sale price
$2,469.00
Regular price
$3,086.25
Sold out
Unit price
per 

Optional Accessories :

The MRCOOL® DIY® 5th Generation Multi-Zone 18K BTU system provides efficient heating and cooling for two separate indoor spaces with a 6,000 BTU + 6,000 BTU configuration. With a 23.9 SEER2 rating, DC inverter technology, and an 18,000 BTU outdoor condenser, this ductless heat pump system delivers reliable year-round comfort while helping maintain energy-efficient operation.

Designed for convenient DIY installation, the system uses MRCOOL® pre-charged Quick Connect® line sets and an integrated DIYPRO® cable to simplify installation without traditional electrical conduit. Each 6,000 BTU wall-mounted air handler is designed for spaces up to approximately 200 square feet and includes smart controls, Follow Me® functionality, and wireless remote operation for personalized comfort.

The system uses environmentally friendly R-454B refrigerant and features Gold Fin® condenser protection, low ambient cooling, quiet operation, and compatibility with the SmartHVAC app, Amazon Alexa, and Google Assistant. The condenser is also designed to support up to three zones, providing flexibility for future system expansion. Warranty coverage includes a 5-year parts warranty and a 7-year compressor warranty, with additional coverage available through the MRCOOL® Care Program.

What's Included

  • MRCOOL DIY 5th Gen Multi-Zone 18,000 BTU Mini Split Condenser
    MRCOOL DIY 5th Gen Multi-Zone 18,000 BTU Mini Split Condenser, DIY-MULTI3-18HP230D-O 
  • MRCOOL DIY 5th Gen 6,000 BTU Wall Mount Air Handler
    MRCOOL DIY 5th Gen 6,000 BTU Wall Mount Air Handler, DIY-06-HP-WMAH-230D25-O
  • MRCOOL DIY 5th Gen R-454B Quick Connect Line Set
    MRCOOL DIY 5th Gen R-454B Pre-Charged Quick Connect Line Set 

Specifications:

BRAND NAME

MRCOOL

SERIES

DIY 5th gen Multi-Zone Mini-splits

MODEL

DIY-MULTI3-18HP230D-O

GTIN

840255587617

UPC

840255587617

EQUIPMENT TYPE

Multi-Zone Ductless Mini-Split Heat Pump

TONNAGE

1.5

COOLING CAPACITY (BTU)

18,000

HEATING CAPACITY (BTU)

18,000

SEER2

23.9

EER2

13

HSPF2-4

10

HSPF2-5

7.8

VOLTAGE (V)

208/230

PHASE

1

CYCLE

60 Hz

MAX FUSE / BREAKER (A)

20

MIN CIRCUIT AMPACITY (A)

16

COLOR

White

ZONE CAPACITY

3

REFRIGERANT TYPE

R-454B

REFRIGERANT VOLUME (OZ)

61.73

DECIBEL RATING (DBA)

60

INVERTER

DC

LINE SET LENGTH

25 ft

MAX LINESET LENGTH (FT)

172.2

LIQUID LINE SIZE

1/4 in

SUCTION LINE SIZE

3/8 in

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 years

BASE COMPRESSOR WARRANTY

7 years

HAS BATTERIES

Yes

CONTAINS ELECTRONICS

Yes

CONTAINS CHEMICALS

Yes

CONTAINS AEROSOL

Yes

CONTAINS COMPRESSED GAS

Yes

PROPOSITION 65 WARNING

Yes

NET DEPTH (IN)

13.46

NET HEIGHT (IN)

26.5

NET WIDTH (IN)

35.04

NET WEIGHT (LBS)

101.63

GROSS DEPTH (IN)

17.24

GROSS HEIGHT (IN)

29.53

GROSS WIDTH (IN)

40.55

GROSS WEIGHT (LBS)

109.57

Product Documents: