Mini Splits Installation
Proper Install
Proper Mini-Split Installation & Commissioning
Installing a ductless mini-split system might look simple — but to get reliable performance, maximum efficiency, and a long system life, every step must be done right the first time. Poor installation is the #1 reason mini-splits fail early or don’t perform to their true potential.
At All-Star Trade Pros, our licensed, insured, and factory-trained technicians follow a proven, code-compliant process for every mini-split install. We never “just hang it and go” — we take the time to install your system to manufacturer specs and verify every detail during commissioning.
Our Proven Mini-Split Installation Process
Here’s what you can expect when you trust us with your mini-split install:
1️⃣ Site Evaluation & Layout
- Assess the best location for indoor unit(s) and outdoor condenser
- Measure line set distances to minimize refrigerant loss
- Plan drain line routing for proper condensate drainage
2️⃣ Proper Mounting & Support
- Securely mount indoor heads on interior walls or ceilings
- Install outdoor unit on a level pad or bracket to avoid vibration
3️⃣ Line Set Installation
- Run insulated refrigerant lines with proper flare connections
- Install line set covers for a clean, professional look and weather protection
4️⃣ Electrical Wiring
- Install a dedicated electrical circuit and disconnect per local code
- Connect communication and power wiring between indoor and outdoor units
5️⃣ Drainage Setup
- Install and test drain lines for correct slope and secure connections
- Add condensate pumps if required
6️⃣ Vacuum & Leak Check
- Pull a deep vacuum to remove air and moisture from the lines
- Verify there are no leaks in connections or flare fittings
7️⃣ Proper Refrigerant Charge
- Add or adjust refrigerant charge to factory specs based on line set length
8️⃣ System Commissioning
- Power up the system and test all modes (cooling, heating, defrost)
- Calibrate thermostat or remote settings
- Verify inverter board operation and fan speeds
- Confirm drain line flow, airflow, and overall performance
Commissioning: Why It Matters
Commissioning isn’t just flipping the switch — it’s the final quality control step that ensures your system is running exactly as the manufacturer designed. Done wrong, you risk:
- Higher energy bills
- Poor cooling or heating performance
- Refrigerant leaks and compressor damage
- Voided warranty
That’s why every install we do includes a detailed commissioning report, so you know it was done right.
Common Mini-Split Installation Materials
Professional installs often require specialized materials and tools you might not think about:
✔️ Wall brackets or condenser pad
✔️ Line set covers and UV-rated insulation
✔️ Flare fittings, brazing supplies, or press-fit connectors
✔️ Pipe hangers, brackets, and fasteners
✔️ Electrical disconnect box and proper gauge wire
✔️ Dedicated breakers and surge protection
✔️ Condensate drain line and pump (if needed)
✔️ Core drill for masonry or brick walls
✔️ Nitrogen tank (for brazing purging)
✔️ Vacuum pump and micron gauge
✔️ Digital manifold gauge set
✔️ Refrigerant scale for precise charging
This is why cutting corners on a DIY install can lead to headaches later — our team brings the right tools, materials, and expertise to make sure your system runs safely and efficiently for years to come.
✅ Want It Done Right?
If you’re ready for precision installation and peace of mind, trust the local pros at All-Star Trade Pros.
📅 Schedule your free estimate today — and see how our team makes your comfort easy, efficient, and built to last.
Or if you have any questions? Send us a message.
512 686 2622
support@allstartradepros.com
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