Retrofitting Air Conditioning in an Older Building – A Real-World Test of a 12,000 BTU Split Air Conditioner

In this video, I demonstrate the retrofit of a 12,000 BTU split-system air conditioner in an older building. From installing the indoor and outdoor units to running the wiring and commissioning the system, I document the entire installation process step by step.

I’ll also share my initial experiences with cooling and heating performance, energy consumption, and the unique challenges that come with installing an air conditioner in an older building. Here’s how to find out if a modern split-system air conditioner is a good investment even in older buildings.

 

Click here for the detailed entry: Article coming soon

 

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If you want to see more of me and my projects, feel free to check out my YouTube channel.

 

 

 

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Zuletzt aktualisiert am 17. June 2026 um 23:37 . Ich weise darauf hin, dass sich hier angezeigte Preise inzwischen geändert haben können. Alle Angaben ohne Gewähr. (*) Bei den verwendeten Produktlinks handelt es sich um Affiliate Links. Ich bin nicht der Verkäufer des Produktes. Als Amazon-Partner verdiene ich an qualifizierten Verkäufen. Dein Preis ändert sich jedoch nicht.

 

 

⚠️ Installation instructions ⚠️

The refrigerant lines and the electrical power supply may only be connected by qualified personnel. The requirements of the EU F-Gas Regulation and national regulations apply to work on the refrigeration circuit. The electrical connection must also be carried out in accordance with the applicable VDE regulations. Improper installation can lead to damage, safety risks and the loss of warranty claims. This video is not a substitute for professional installation.

 

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