Sale Mitsubishi 20,000 BTU (9K + 15K) GX-Series 19.3 SEER2 Dual Zone Wall Mount Hyper Heat Mini Split Heat Pump System - R454B | 230V

Mitsubishi

Mitsubishi 20,000 BTU (9K + 15K) GX-Series 19.3 SEER2 Dual Zone Wall Mount Hyper Heat Mini Split Heat Pump System - R454B | 230V

Model: MXZ-2D20NLHZ + MSZ-GX09NL + MSZ-GX15NL-9KNL-15KNL SKU: MXZ-2D20NLHZ + MSZ-GX09NL + MSZ-GX15NL-9KNL-15KNL

1.75 Ton  |  SEER2 19.3  |  R-454B  |  208-230V

  • 20000 BTU cooling capacity
  • Up to 19.3 SEER2 rated efficiency
  • Uses R-454B refrigerant
  • Runs on 208-230V power
$5,931.39 $7,414.23 Save 20% Free Shipping
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At a Glance

Key Specifications

System Type Mini-Split
Capacity 20000 BTU
Tonnage 1.75 Ton
SEER2 19.3
Voltage 208-230V · Single Phase
Refrigerant R-454B
Overview

Product Overview

Mitsubishi GX-Series 2-Zone Wall-Mount Mini Split Heat Pump - 9K + 15K

Comfort for two separate rooms from one Mitsubishi multi-zone outdoor condenser. This GX-Series system pairs the MXZ-2D20NLHZ outdoor heat pump with 9K + 15K wall-mounted indoor units for efficient heating and cooling without adding ductwork.

The outdoor system is in Mitsubishi's 20,000 BTU class. For non-ducted indoor combinations like this wall-mount setup, the catalog lists 18,000 BTU cooling, 22,000 BTU heating, 19.3 SEER2 efficiency, and AHRI certificate 216505925.

Hyper Heat performance helps maintain stronger output in cold weather, with this non-ducted configuration listed at 22,000 BTU of heating capacity at 5F.

At a Glance:

Best For two rooms where stronger cold-weather heating performance is a priority
System Models MXZ-2D20NLHZ / MSZ-GX09NL / MSZ-GX15NL
Indoor Combination 9K + 15K
AHRI Non-Ducted Capacity 18,000 BTU cooling / 22,000 BTU heating
Heating Capacity at 5F 22,000 BTU
Efficiency 19.3 SEER2 / 13.5 EER2 / 10.0 HSPF2
Voltage 208/230V, 1 phase
Refrigerant R-454B
Controls Handheld remote included / WiFi built in on GX wall-mounted indoor units
Installation Type Professional HVAC installation required

Why Choose This Mitsubishi 2-Zone System?

  • Two-room comfort: Heat and cool two spaces independently using one outdoor condenser.
  • GX wall-mounted indoor units: GX indoor units include handheld remote control capability and built-in WiFi per the catalog.
  • Efficient inverter performance: Mitsubishi inverter technology varies output to help maintain steadier comfort than basic on/off equipment.
  • Current-generation refrigerant: Built around Mitsubishi's R-454B equipment lineup.
  • Clean installation profile: Wall-mounted indoor units avoid ductwork and are well suited for bedrooms, offices, additions, bonus rooms, and other defined spaces.

What Is Included?

  • 1 Mitsubishi MXZ-2D20NLHZ outdoor multi-zone heat pump condenser
  • 1 Mitsubishi MSZ-GX09NL 9K wall-mounted indoor unit
  • 1 Mitsubishi MSZ-GX15NL 15K wall-mounted indoor unit
  • Handheld remote control capability for each indoor unit

Line-set note: choose a line-set length for each indoor unit. Select None for any zone where you do not want a line set included. Mixed-length line sets are supported; electrical accessories, pads, brackets, disconnects, condensate pumps, and other installation materials may need to be quoted or purchased separately.

Before You Order:

  • Have your installer confirm room loads, indoor placement, outdoor placement, line-set routing, electrical requirements, and local code requirements.
  • Nominal indoor sizes like 9K + 15K are not a substitute for a Manual J load calculation.
  • This is not a DIY quick-connect system. Refrigerant piping, evacuation, electrical work, startup, and commissioning should be handled by a qualified HVAC professional.
  • The outdoor condenser is a two-port multi-zone unit, so no branch box is required for this configuration.

Frequently Asked Questions:

Why does the title say 20,000 BTU if the indoor combination is 9K + 15K?
The outdoor unit is Mitsubishi's 20,000 BTU class MXZ-2D20 condenser. The catalog's non-ducted AHRI configuration for this condenser lists 18,000 BTU cooling and 22,000 BTU heating.

Can each room have its own temperature setting?
Yes. Each wall-mounted indoor unit can be controlled separately, subject to normal multi-zone operating limits.

Are line sets included?
Only if you select a line-set package variant. The package options are set up as matching pairs for both zones.

Is this a DIY system?
No. Mitsubishi multi-zone equipment should be installed and commissioned by a qualified HVAC professional.

Specifications:

BRAND NAME Mitsubishi
SERIES GX-Series
SYSTEM TYPE 2-zone ductless mini split heat pump
OUTDOOR MODEL MXZ-2D20NLHZ
INDOOR MODELS MSZ-GX09NL / MSZ-GX15NL
ZONE CAPACITY 2 zones
AHRI CERTIFICATE NUMBER 216505925
AHRI TYPE Non-ducted indoor units
COOLING CAPACITY 18,000 BTU
HEATING CAPACITY 22,000 BTU
HEATING CAPACITY AT 5F 22,000 BTU
SEER2 19.3
EER2 13.5
HSPF2 10.0
REFRIGERANT TYPE R-454B
POWER SUPPLY 208/230V, 1 phase
OUTDOOR UNIT TYPE Hyper Heat ported multi-zone condenser
REGISTERED WARRANTY 10-year parts and compressor limited warranty when registered within 90 days; terms apply
NON-REGISTERED WARRANTY 5-year parts / 7-year compressor limited warranty; terms apply

Indoor Unit Details:

Indoor Model Nominal Size Rated Indoor Capacity Line Size Dimensions
MSZ-GX09NL 9K 9,000 BTU cooling / 10,900 BTU heating 1/4 in liquid / 3/8 in gas 11-25/32 in H x 31-13/32 in W x 9-21/32 in D
MSZ-GX15NL 15K 14,000 BTU cooling / 18,000 BTU heating 1/4 in liquid / 1/2 in gas 11-25/32 in H x 31-13/32 in W x 9-21/32 in D
Technical Specifications

Performance

System TypeMini-Split
Capacity20000 BTU
Tonnage1.75 Ton
SEER219.3

Electrical & Fuel

Voltage208-230V
PhaseSingle Phase
RefrigerantR-454B
Shipping & Delivery
Orders typically ship within 1-3 business days. Freight items are delivered by appointment to a curbside address; someone must be present to receive and inspect the shipment. Inspect for damage before signing. Returns are accepted within 30 days on unused, uninstalled equipment in original packaging -- return shipping and a restocking fee may apply. See our Shipping Policy and Return & Refund Policy for full terms.
Manufacturer Warranty
Covered by Mitsubishi's limited warranty. Warranty coverage generally requires installation by a licensed HVAC contractor and, on many brands, product registration after installation. Refer to Mitsubishi's warranty documentation for the full terms that apply to this model.

Professional Installation Recommended

Most HVAC equipment must be installed and connected by a licensed professional to remain safe, code-compliant, and eligible for manufacturer warranty coverage. If you're unsure about installation requirements, contact us before you order.

Before You Order

Make sure it is the right size, and that you have the rest of it

Most outdoor units ship alone. If you are not certain of the capacity, or of what has to go with this unit, these two will work it out with you.

Still deciding on the right equipment?

Our HVAC specialists can help you confirm sizing and compatibility before you buy.