Aircon Installation: What You Need to Know Before Installing Your New AC Unit

Installing a new air conditioner is one of the best ways to improve indoor comfort, especially in hot and humid climates like Malaysia. Whether you’re upgrading your old unit or installing a new one in a recently renovated space, proper aircon installation is critical for performance, energy efficiency, and long-term reliability.

In this blog, we’ll guide you through the key things to know before, during, and after your aircon installation—so you can make informed decisions and avoid costly mistakes.

Why Professional Aircon Installation Matters

Many people think buying a quality aircon unit is enough. But the truth is, even the best air conditioner will underperform if installed incorrectly.

Here’s why professional installation is important:

• Ensures correct sizing for your space

• Prevents energy wastage and high electricity bills

• Reduces the risk of future breakdowns

• Maintains manufacturer warranty

• Ensures safety with proper wiring and refrigerant handling

Choosing the Right Type of Air Conditioner

There are several types of AC units available, depending on your needs and space:

• Wall-mounted split systems – Ideal for bedrooms, living rooms, and offices

• Ceiling cassette units – Great for large spaces and commercial areas

• Portable units – Flexible but less powerful

• Central ducted systems – Suitable for whole-home cooling (higher investment)

Tip: A professional technician can assess your space and recommend the best type and size of unit based on room size, insulation, and usage.

Key Factors to Consider Before Installation

1. Room Size & Layout

The cooling capacity of your AC (measured in BTUs) should match the size of your room. Undersized units will struggle to cool, while oversized ones may short cycle and waste energy.

2. Power Supply

Ensure your electrical system can handle the new aircon. Old or insufficient wiring may need to be upgraded.

3. Location of Indoor & Outdoor Units

Proper placement ensures better airflow, easier maintenance, and lower noise levels. The outdoor unit should be in a well-ventilated, shaded area.

4. Drainage System

Proper drainage prevents water leakage and mold issues. Technicians will install the right piping to guide condensation safely away.

What to Expect During Installation

A professional installation service typically includes:

• Site assessment and consultation

• Unit mounting (indoor and outdoor)

• Refrigerant piping and electrical connections

• Testing of cooling performance and airflow

• System calibration and thermostat setup

• Final clean-up and usage guidance

Time required: Typically 3–6 hours depending on unit type and complexity.

Post-Installation Tips

• Wait 1–2 hours before using the new system

• Clean the filters monthly for better airflow

• Schedule regular servicing (every 4–6 months)

• Monitor performance and call for service if anything seems off

Pro Tip: Always Hire Certified Technicians

Cheap or unqualified installers may leave you with:

• Leaky pipes or poor drainage

• Incorrect refrigerant levels

• Weak airflow or poor cooling

• Warranty voided due to poor installation

Save yourself the hassle and get it done right the first time.

Final Thoughts

A successful aircon installation isn’t just about comfort—it’s an investment in your home or business. Choosing the right unit and hiring skilled professionals ensures better performance, lower energy bills, and peace of mind.

Looking for trusted aircon installation experts?

At Aircon Men Enterprise, we provide fast, reliable, and affordable installation for residential and commercial properties.
Free consultation
Certified & experienced technicians
High-quality workmanship
All major brands supported