Installing a MRCOOL DIY mini split air conditioner involves several steps. Before you begin, it's crucial to carefully read and follow the manufacturer's instructions provided with your unit. Here's a general guide to help you with the installation process:

**Note: The following steps provide a broad overview of the installation process. Always refer to the specific manual provided by MRCOOL in your order for your particular model, as there may be variations in installation steps.**

Step 1: Choose the Installation Location

Select an appropriate location for both the indoor and outdoor units. Ensure that there's sufficient clearance for proper airflow and that the units are level.

Step 2: Install the Mounting Bracket

Attach the mounting bracket to the interior wall using a drill and screws. Ensure that the bracket is level and can support the weight of the indoor unit.

Step 3: Drill Holes for Copper Tubing and Wiring

Drill a hole through the exterior wall to pass the copper tubing and electrical wiring. Use the appropriate drill bit size, as specified in the manual.

Step 4: Connect Copper Tubing and Wiring

Thread the copper tubing and electrical wiring through the drilled hole. Connect the tubing to the indoor and outdoor units using a pipe cutter. Insulate the tubing with the provided insulation material.

Step 5: Mount the Indoor Unit

Secure the indoor unit to the mounting bracket. Follow the manufacturer's instructions for proper installation, ensuring that the unit is level.

Step 6: Mount the Outdoor Condenser

Install the outdoor condenser on a stable surface. Connect the copper tubing and electrical wiring to the condenser. Use wrenches and pliers to ensure tight and secure connections.

Step 7: Install the Condensate Drain Hose

Connect the condensate drain hose to the indoor unit and route it to an appropriate drainage location.

Step 8: Vacuum the System

Use a vacuum pump to remove any air and moisture from the refrigerant lines. This is a crucial step for system efficiency.

Step 9: Charge the System with Refrigerant

Follow the manufacturer's guidelines to determine the correct amount of refrigerant for your system. Charge the system with refrigerant using the provided kit.

Step 10: Test the System

Turn on the mini split system and test both heating and cooling modes to ensure proper functionality.