- Find an Installer
New Model MULTI42CDUCT311 replaces Model MULTI42BDUCT311
- Outdoor Condenser Model: MULTI42HP230V1CO
- Indoor Concealed Duct Model: DUCT12HP230V1AD, DUCT18HP230V1AD (x2)
- Wireless Remote Control (x3) and XK-19 Wired Controller (x3)
- Required, but not included: 1/4" x 3/8" line set & 1/4" x 1/2" line set (x2)
The GREE Multi21+ Tri-Zone CONCEALED DUCT 42,000 BTU System is powered by Gree’s G10 inverter-driven compressor and eco-friendly R410A refrigerant. These units can heat and cool 3 zones without distribution boxes. Our G10 inverter technology saves energy, reduces outdoor noise and keeps room temperature steady by eliminating the harsh starts & stops of conventional systems. The Multi21+ Concealed Duct offer the ultimate in flexibility and discretion. These slim indoor units are designed to be concealed above suspended ceilings or within open closet spaces to deliver conditioned air via ducting and suitable ceiling or wall grilles.
Features & Benefits:
- High Efficiency up to 21 SEER
- Sound Levels to 61 dB(A)
- Multi-point Diagnostics
- Low Ambient Cooling down to 0° F
- Low Ambient Heating down to -4° F
- Intelligent Defrost
- Heavy Gauge Steel Cabinet
- Includes Line-set Adaptors
- Medium Static Pressure Capability
- Slim Line Construction 7-7/8" high
- Alternate Return Air From Bottom Or Rear
- Internal Condensate Pump
- Sentry Float Switch
- IR Remote and XK -19 Wired Controller
- Five (5) Year Warranty
Please Note: Mini Split Systems must be installed by a licensed Contractor with an EPA Refrigerant Certification to qualify for warranty.
Which line set kit do I need?
This system uses (1) 1/4" x 3/8" line set and (2) 1/4" x 1/2" line set. These are sold separately, and you can select your 3/8" line set length from our 15 ft, 25 ft, 35 ft and 50 ft lengths and 1/2" line set length from our 15 ft, 25 ft, 35 ft, 50 ft and 75 ft lengths. The length needed depends on the needs of your project and how you will set up the system (distance from outdoor condenser to indoor air handler).
Can I install this myself?
While installation of a ductless split is much easier than a central air system, it's still much more advanced than installing a window unit or portable. Furthermore, the manufacturer warranty is only valid if a licensed professional does the installation. So while it is possible to do the installation yourself, we strongly recommend you hire an HVAC professional in your area.
Is this backed by a warranty?
Yes, it comes fully backed by a manufacturer's warranty, and ComfortUp is an authorized online seller of these systems. Our Customer Care Team will provide assistance should you ever need to file a warranty claim with the manufacturer. Please be aware that only systems that are installed by a licensed HVAC contractor are backed by the warranty. Proof of licensed installation is required. The receipt/invoice from your contractor should be sufficient.
Note: Concealed ducts need to be installed in a conditioned space in order to operate effectively. It’s highly recommended to discuss this application with a licensed contractor that is experienced with the installation of these units.
Bundle Unit Sound Pressure Rating 61 dB(A) Capacity 42,000 BTU Cooling Capacity 8871 - 40944 Corrosion Protection Yes Cycle Hertz 60 Hz Filter Type Washable HSPF 10.2 Inverter Yes Item Weight 387.4 pounds Line Set Size For Bundle 1/4" x 3/8" and 1/4" x 1/2" (2) Minimum Circuit Amps 24 Phase Single Refrigerant R-410a Room Size 1,400 - 2,300 ft2 UPC 841999171216 Warranty Offered Yes Wireless No Zone Capability 3 Zones Equipment Type Heat Pump SEER 21 EER 10.4 Voltage 208-230 VAC Energy Star Rated No Heating Capacity 8871 - 46062 Tonnage 3.5 Product Family MULTI 21+ Mounting Type Concealed Duct 4-Way Remote Air Flow Control No