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Installing a split air conditioner is a complex process that requires specialized knowledge and tools. It is important to hire a qualified technician to install your split air conditioner to ensure it is installed correctly and safely.


Here are the general steps involved in installing a split air conditioner:

Installation of Split Air Conditioners

Split air conditioners shall be installed as per the procedure given below.

  1. The outside unit shall be installed on a place solid enough to bear the weight and vibration of the unit, where the operation sounds will not be amplified. 
  2. The location shall be such that the hot air discharged from the unit, or the operation sounds may not disturb the surroundings.
  3. All piping, fittings, and insulation shall then be installed as per manufacturer’s requirements. 
  4. The units shall be installed in level and plumb. 
  5. Evaporator-fan components shall be installed using manufacturer’s standard mounting devices securely fastened to building structure. 
  6. Refrigerant tubing and fittings shall then be installed and connected.
  7. The clearance for maintenance shall be maintained while selecting the location.
  8. Sufficient space for air passage around the unit for air inlet and the air outlet shall be provided.
  9. The site shall be free from the possibility of flammable gas leakage in a nearby place. 
  10. The inside and outside unit’s power cords and inter-unit wire shall preferably be kept at least 3 m away from television and radio sets to avoid interference to images and sounds.
  11. After piping has been completed, the refrigerant piping system shall be pressure tested at a pressure of 21 kg/cm² on the high side and 10 kg/cm² on the low side. 
  12. The pressure shall be maintained on the system for a minimum of 12 h. 
  13. The system shall be evacuated when the surrounding ambient air is not less than 16°C. 
  14. A minimum vacuum of 500 microns of Hg shall be pulled on the system and maintained for 12 h. The system shall be charged as recommended by the equipment manufacturer.
  15. Start-up – Manufacturer or factory-authorized service representative shall be engaged to perform start-up service. Manufacturer shall provide on-site start-up and commissioning assistance through job completion. 

Installation and start-up checks shall be completed according to manufacturer’s written instructions.

It is important to follow the manufacturer’s instructions and local building codes when installing a split air conditioner. A qualified technician will have the knowledge and experience to install your system safely and correctly.

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