This is a single-zone, hybrid AC/DC mini split system for cooling and heating one room or open area up to roughly 1,350 sq ft, built to run on a standard 208-240 VAC circuit, direct solar (PV) input, or both at once. It's designed for homeowners and off-grid or solar-powered property owners who want daytime cooling and heating without pulling extra power from the grid — and who plan to self-install using quick-connect line-set fittings.
The EG4 24,000 BTU Hybrid Mini-Split (indoor model DGA2-ACDC-24KR2, outdoor model DWB3-ACDC-24R2) is built for single-zone spaces up to approximately 1,350 sq ft, per manufacturer datasheet figures. It is designed as a wall-mounted DIY system using quick-connect line-set fittings rather than traditional brazed flare connections. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
System Components
- Outdoor condenser unit — model DWB3-ACDC-24R2, hybrid AC/DC input
- Indoor wall-mounted evaporator head — model DGA2-ACDC-24KR2
- Quick-connect, self-closing companion valve fittings for the refrigerant line set connection
Installation Requirements & Accessories
- AC electrical input: 208-240 VAC, 9 - 9.5A rated current, 60 Hz
- Maximum breaker size: 20A; minimum circuit ampacity: 16.33A
- DC (solar) electrical input: 150 - 380 VDC, 5.4 - 13.67A rated current; maximum PV voltage (Voc) 380V; maximum PV amperage (Isc) 20A; rated PV wattage 2200W
- DIY quick-connect line-set fittings — no brazing, special tools, or vacuum pump required per manufacturer data
- Not compatible with 115 VAC-only circuits — this 24K unit requires a dedicated 208-240 VAC circuit
- Not a listed matched pair with the EG4 12K system components (DWA4-ACDC1-12R2 / DGA3-ACDC1-12KR2)
- Solar panels, PV wiring, and combiner/junction hardware are NOT included
- Outdoor wall mount bracket is sold separately and NOT included with this kit
Pro-Installer Tip
Even on a "no-vacuum-required" quick-connect system, the pre-charged line set can still kink if it's coiled too tightly or routed around a tight corner during installation — a kinked line restricts refrigerant flow and can trigger poor cooling performance or a fault code down the road. Use a line set bending mandrel for any bend tighter than the manufacturer's minimum radius, and support the line set at regular intervals so its own weight doesn't pull a slow kink into place over time. This keeps the quick-connect valves seated correctly and preserves the factory refrigerant charge — the entire reason a no-vacuum DIY design works in the first place. Even on DIY-rated equipment, refrigerant handling and disposal fall under EPA Section 608 guidelines, so keep the connections sealed and undamaged from first connection to final startup.
Key Benefits
- Hybrid AC/DC input lets the system draw directly from solar panels during daylight hours, per manufacturer data, alongside standard 208-240 VAC power
- DIY quick-connect refrigerant fittings eliminate the need for brazing equipment or a vacuum pump during installation
- SEER2 rating of 20.5 and EER2 of 11.7 for cooling-season efficiency
- Cooling/heating operating range of 6,100 - 25,200 BTU/h allows output modulation to match room load
- 5-year limited DIY warranty coverage as stated by the manufacturer
- Sized for rooms up to approximately 1,350 sq ft per manufacturer datasheet
| Spec | Value | Unit |
|---|---|---|
| Rated Cooling Capacity | 24,000 | BTU/h |
| Cooling/Heating Operating Range | 6,100 - 25,200 | BTU/h |
| SEER2 | 20.5 | W/W |
| SEER | 20.5 | W/W |
| EER2 | 11.7 | BTU/W |
| AC Rated Voltage | 208 - 240 | VAC |
| AC Rated Current | 9 - 9.5 | A |
| AC Rated Input Power | 190 - 2250 | W |
| Frequency | 60 | Hz |
| Minimum Circuit Ampacity | 16.33 | A |
| Maximum Breaker Size | 20 | A |
| Maximum Starting Current | 6 | A |
| DC Rated Voltage | 150 - 380 | VDC |
| DC Rated Current | 5.4 - 13.67 | A |
| Maximum PV Voltage (Voc) | 380 | VDC |
| Maximum PV Amperage (Isc) | 20 | A |
| Rated PV Wattage | 2200 | W |
| Rated Power (Cooling) | 2050 | W |
| Rated Current (Cooling) | 9.5 | A |
| Zone Count | 1 | — |
| DIY Status | Yes — Pre-Charged/Quick-Connect Line Set, No Vacuum Required | — |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
- Matched AHRI-style pairing per manufacturer data: outdoor unit DWB3-ACDC-24R2 with indoor unit DGA2-ACDC-24KR2
- Compatible with dedicated 208-240 VAC single-phase circuits, and/or 150-380 VDC solar (PV) input
- Wall-mounted indoor unit — does not require ceiling joist or drop-ceiling framing
- NOT compatible with 115 VAC-only circuits — that voltage applies to the separate EG4 12K system only
- NOT a listed match for the EG4 12K indoor/outdoor model family (DWA4-ACDC1-12R2 / DGA3-ACDC1-12KR2)
- Line set is connected via quick-connect fittings per DIY design; exact included length/diameter is [NEEDS VERIFICATION]
- Outdoor wall mount bracket is NOT included and must be purchased separately
- Solar panels and associated PV wiring/combiner hardware are NOT included
FAQ
What breaker size do I need for this system?
The 24K EG4 hybrid system has a maximum breaker size of 20A on the AC side, with a minimum circuit ampacity of 16.33A on 208-240 VAC.
Is professional installation required to keep the warranty valid, or is this a true DIY kit?
This is a true DIY kit. It uses quick-connect and self-closing companion valves for the refrigerant line set, so no special tools, brazing, or vacuum pump are required. A 5-year limited DIY warranty applies. [NEEDS VERIFICATION: exact warranty terms and conditions — refer to the manufacturer warranty document].
Is the line set included, and if not, what size do I need to buy?
The manufacturer data provided does not specify whether a pre-charged line set length/diameter ships with this kit. [NEEDS VERIFICATION: line set length, diameter, and inclusion status].
Does this system work in cold climates (low-ambient heating)?
The source data lists a heating/cooling operating range of 6,100 - 25,200 BTU/h for the 24K unit but does not publish a minimum outdoor ambient temperature rating. [NEEDS VERIFICATION: low-ambient heating temperature limit].
Can I power this system with solar panels directly?
Yes. The 24K unit accepts DC input from 150-380 VDC, with a maximum PV voltage (Voc) of 380V, maximum PV amperage (Isc) of 20A, and a rated PV wattage of 2200W, in addition to standard 208-240 VAC power.
Compliance & Warranty
Limited parts warranty applies to self-installation; see manual for details. The manufacturer states a 5-year limited DIY warranty for this hybrid mini-split. Refrigerant handling during connection and any future service must still follow EPA Section 608 requirements. Refer to the "Resources (System Manuals and Warranty)" Tab above on this page for the complete warranty document and installation manual.
