Publish Time: 2026-09-16 Origin: Site
ALB Solar DC Air Conditioner BTU Guide | 9000 to 30000 BTU, R32, 90–380V DC Meta Description: Size guide for ALB DC solar air conditioner, 9000–30000 BTU, cooling + heating, R32 refrigerant, wide 90–380V DC PV input for off-grid solar climate control.
One of the biggest mistakes in solar air conditioning projects is picking the wrong BTU capacity. Too small, and the unit runs nonstop and cannot hold target temperature; too large, and you waste solar power and investment. The ALB DC solar air conditioner family offers a neatly graduated range: 9000, 12000, 18000, 24000 and 30000 BTU, with full cooling and heating functionality on every model.
All models share the same core technical advantages: 90–380V wide DC direct input and factory charge of R32 refrigerant. That means the same reliable PV compatibility and eco-friendly refrigerant standard across the whole lineup, so installers can standardize training, spare parts and commissioning workflows.
Quick BTU reference for space planning (for general guidance, always factor insulation, ceiling height, local climate and sun load):
9000 BTU: Small rooms, single bedrooms, small container houses
12000 BTU: Standard bedrooms, small home offices
18000 BTU: Large bedrooms, open living areas, small shops
24000 BTU: Large living rooms, cafes, medium workshops
30000 BTU: Open commercial spaces, farm buildings, large remote premises
Because this is a direct DC solar unit, sizing is not only about room size. You also need to match the selected BTU model to your solar array and battery bank. Thanks to the 90–380V wide DC acceptance, you are not forced to rebuild your PV setup just to suit the air conditioner. It tolerates voltage variation when solar irradiance rises and falls through the day.
The heating function makes ALB a year-round climate solution. Many solar ACs sold on the market are cooling-only. ALB works as a solar heat pump: it removes heat indoors in summer and extracts ambient heat for warming during cool seasons. For export markets with cold winters or cool nights, this dual-function feature adds huge value.
R32 refrigerant completes the package. It has superior heat exchange performance, helping each BTU model deliver its rated capacity with higher energy efficiency, while complying with tightening environmental rules in many countries.
If you are a distributor, HVAC contractor or project developer, the 9000–30000 BTU range lets you serve nearly all common solar cooling and heating projects from one product series. You can offer customers a scalable DC solar air conditioning solution without switching to different product platforms.