Mini split systems utilize the latest heat pump technology to provide heating and cooling for your home. The most common type of mini split system, called a ductless mini split, can save money compared to traditional air conditioning and heating units that require ductwork. 🌡️
Ductless mini split systems are great for bedrooms, home offices, additions, finished attics, and garages. Cooling-only systems, called mini split AC systems, function exclusively as air conditioners.
This guide by The Trade Table explains how to install a mini split air conditioner in your home. 🛠️
A DIY mini split installation requires:
✔️ A condensing unit outside the home
✔️ An air handler inside the home
✔️ Refrigerant lines connecting the units
✔️ Electrical wiring to power the system
Most mini split systems are professionally installed because the refrigerant line must be cut and charged. However, DIY mini splits come pre-charged and do not require refrigerant handling.
Use this guide to install a ductless mini split system in your home or business.
Ductless mini split systems require handling refrigerant lines and making high-voltage electrical connections. Some states require these HVAC services to be handled by licensed professionals. Check with local authorities for permit requirements before installation.
Duration: Over 1 day
Before starting, select a mini split system that fits your space. Consider the following:
Designed to heat or cool one room, such as a bedroom, kitchen, attic, or garage.
Can regulate two separate areas, powered by one condenser unit.
Designed to heat or cool multiple rooms with one outdoor condenser and several air handlers inside.
💡 Pro Tip: Choose the correct BTU size based on your room’s square footage. A 2-ton mini split or 4-ton mini split are common choices. Always refer to the manufacturer's sizing guide.
✅ Choose a wall with exterior access
✅ Avoid direct sunlight or heat sources
✅ Maintain clearance from the ceiling
1️⃣ Locate wall studs using a stud finder
2️⃣ Mount the wall bracket securely using a level 📏
3️⃣ Drill a 2- to 3-inch hole for refrigerant lines and control wiring
4️⃣ Secure the unit onto the wall bracket
✔️ Place on the ground, wall, or rooftop
✔️ Secure to a concrete pad or wall brackets
✔️ Ensure good airflow around the unit
⚠️ Do not cut pre-charged lines. Releasing refrigerant is dangerous and can cause burns.
1️⃣ Feed refrigerant lines through the wall hole
2️⃣ Use electrical tape to bundle wiring and drain tubing
3️⃣ Secure refrigerant lines to the outdoor condenser unit
1️⃣ Attach multi-conductor wiring between indoor and outdoor units
2️⃣ Secure wiring and pipes along the wall for a clean look
3️⃣ Connect the correct pipe joint to the line set
Professional Help Recommended!
Once the units are connected:
✔️ Call an HVAC technician to handle refrigerant lines and ensure secure connections
✔️ Hire a licensed electrician to run a 220-volt (or 120-volt) power line to the unit
Installing a mini-split system is a great way to control temperature efficiently in your home or business. However, proper setup is essential to ensure safe operation and long-term performance.
💬 Thinking of upgrading your HVAC system? Contact The Trade Table for expert guidance and installation services! 🏡🔥
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