48V & 24V DC Air Conditioner / Heat Pump

Powerful cooling with unprecedented efficiency. This air conditioner and heat pump cools and heats, wiring directly to a battery with no inverter needed.

These are 48 volt units. 24 volt units are available in smaller capacities if you need a lower-power solution.

Battery Requirements

You'll need a 48V or 24V battery to operate these units. Running them directly on solar without a battery won't work reliably and can damage the system. The battery doesn't have to be large, but the longer you want to run the unit without full sun, the larger the battery you’ll want.

Ideal for Permanent Installations

Mini-splits are the best choice for permanent structures. Installation involves:

• Running copper lines between the indoor "head unit" and the outdoor "condenser" unit.
• Vacuuming the lines, then releasing the refrigerant from the outdoor unit by turning an Allen key.
• Supplying 48 volts DC input via appropriately sized power cables (positive and negative).
• Turning on the unit inside with the included remote.

This setup provides real, high-power air conditioning with zero monthly bills and no reliance on city power.

Unmatched DC Efficiency

The pure DC nature of these air conditioners allows them to reach efficiencies exceeding top SEER-rated devices by 30% in solar-powered projects. Benefits include:

• No high starting current.
• No inverter load.
• Significantly reduced complexity and cost for off-grid systems.

Because air conditioning demands high power, you can skip the inverter entirely.

Monitoring and Smart Control

Recommended options to protect and manage your battery system include:

• Monitor usage with a Smart Shunt.
• Prevent deep discharge using a Battery Protect module.
• Create an autonomous climate control system that matches your full solar harvest.

The brighter the sun on your panels, the longer and colder this air conditioner can run.

Scaling for Large Structures

Multiple pure DC heat pumps can be paralleled for large structures like warehouses or commercial greenhouses. They are inherently low-voltage devices, improving safety in humid environments.

About Multi-Zone Units

Multi-zone units have multiple indoor heads, each with its own remote, connected to one outdoor unit capable of running all heads simultaneously. Note:

• Multi-zone units do not come with the copper lines—only the connecting nuts.
• You'll need to purchase appropriate lengths of copper tubing and insulation to match your installation.

When you buy your unit, we're happy to help you determine the right size tubing, or you can purchase it at your local hardware store.