Aircond Not Cold After Installation? It Might Be Due to Vacuum Not Reaching 500 Microns – Here’s the Impact & Causes
- Nabiha Az.
- 2 hari lalu
- 4 min membaca
Index
Introduction
New aircond but not cooling? One of the main causes is improper vacuuming during installation!
Many users are frustrated when their air conditioner doesn’t cool well, even though it’s newly installed. The issue may not lie with the aircond unit itself, but rather with the installation process — more specifically, the vacuum process that didn’t reach 500 microns. This article explains the importance of proper vacuuming, the consequences of neglecting it, and how to ensure your service provider is professional.
What Is a 500 Micron Vacuum in Aircond Installation?
Vacuuming is the process of removing air and moisture from the aircond system before gas is filled.
During installation:
The technician must vacuum the system until the negative pressure reaches 500 microns or less.
This ensures that air, moisture, and foreign oils are removed to protect the compressor.
500 micron vacuum is the industry standard in HVAC for long-lasting and efficient performance.
Why Is 500 Micron Vacuum So Important?
Without proper vacuuming, your aircond’s performance will drop significantly in a short time.
✅ Benefits of proper vacuum:
Prevents ice buildup on the coils
Avoids premature compressor failure
Ensures smooth gas flow (R32 or R410a)
Reduces risk of gas leaks caused by pressure issues
⚠️ Technicians who skip the micron gauge often just perform "purging" — which is not sufficient for long-term use.
Effects of Not Reaching 500 Microns
Common problems that occur after improper installation:
Aircond doesn’t get cold even with full gas
Compressor overheats and fails early
Sudden increase in electricity bills
Strange noises from outdoor unit
Frozen coils or water dripping from indoor unit
📉 According to technical studies, systems that are not vacuumed properly may suffer a 30–40% drop in performance within the first 6 months.
Common Reasons Why Vacuum Doesn’t Reach 500 Microns
Some of the typical causes include:
Low-quality vacuum pump used
No micron gauge to verify vacuum level
Process rushed — done in just a few minutes
Using the purging method (releasing gas to "push out air") — incorrect and risky
Trying to save time and reduce costs
📌 A proper vacuum under 500 microns typically takes 15–30 minutes, depending on pipe length and system size.
How to Ensure Proper Aircond Installation
💡 Tips for customers:
Ask the technician: “Do you use a vacuum pump and micron gauge?”
Ensure installation takes 1–2 hours, not just 30 minutes
Request photos of the process or a service report
Choose a service that offers post-installation warranty
⚠️ Cheap services that skip SOPs will likely cost you more later in repairs or reinstallation.
Professional Aircond Service with Proper Micron Vacuum
A trusted aircond service provider will:
✅ Use a heavy-duty vacuum pump
✅ Use a micron gauge to ensure vacuum is below 500 microns
✅ Fill refrigerant gas only after complete vacuuming
✅ Test for leaks using nitrogen pressure before powering on the system
This is HVAC industry standard that many don’t know — but we follow it 100% to ensure long-term durability.
Did You Know?
500 micron vacuum = removes moisture equal to 1 drop of water from the system
Airconds without proper vacuuming usually start leaking within 6–12 months
Compressors can completely fail within 1 year without proper vacuuming
Vacuuming too fast (under 5 minutes) is often completely ineffective
Conclusion
Don’t let poor installation ruin your investment. Vacuuming below 500 microns is not just a technical detail — it’s a long-term investment in your aircond’s performance and durability. Choose a transparent and experienced service provider so your aircond stays cool, energy-efficient, and lasts for years.
Frequently Asked Questions (FAQ)
1. Why isn’t my new aircond cooling?
Most likely, the system wasn’t vacuumed properly or gas is low. Ensure vacuuming reaches 500 microns.
2. Can I install an aircond without vacuuming?
It’s possible, but highly discouraged. It reduces performance and causes early damage.
3. What’s the difference between purging and real vacuuming?
Purging only expels air with gas — it doesn’t remove moisture. Vacuuming removes both.
4. Do all technicians vacuum to 500 microns?
No — many use a vacuum pump without a micron gauge, so they can’t verify vacuum levels.
5. How much does proper installation with vacuuming cost?
Usually RM250–RM450, depending on aircond type and location.
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✅ 12 Years of Experience – We Use Proper Vacuum & Micron Gauge!
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➡️ Don’t waste hundreds fixing poor installations. Choose proper SOP-compliant installation & servicing — we’ve got you covered from A to Z!
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