1. Choosing Location of the Indoor Units

   The first step in the installation of split AC is deciding the location of the Indoor and the outdoor units, only then the next important steps of the installation can be initiated.

   Indoor Unit:

   Here are the important suggestions when deciding the location of the indoor unit inside the room:

   a) The indoor unit is located inside the room at the location from where the air can be distributed evenly throughout the room.

   b) As far as possible the indoor should be installed above the bed so that the maximum cooling effect can be obtained. It should be located directly above the bed. If one has to avoid the direct flow of chilled air on the body, one can always change the direction of the louvers. The indoor unit can also be installed on the wall towards your feet though it can be installed on other side walls also.

   c) The wall mounted indoor unit should be located at the height of about 8 to 10 feet from the floor so that most of the chilled air is used for cooling the room and not merely for cooling the hot roof.

   d) The indoor unit should be accessible easily so that one can conveniently clean the filter every fortnight and the whole unit and also that one can manually change the position of the louvers easily.

2. Fix the Mounting Plate and drill holes

   Once the location of the indoor unit is decided its installation can be started. As such the installation of the indoor unit is quite easy, but only for those who have mastered the technique.

   Now, hold the mounting plate against the wall where you want to mount the indoor unit. Make sure the plate is horizontal. If you don’t have a spirit level/bubble level, use a measuring tape for the same. After achieving a horizontal position using a pencil to mark the points where drilling will take place for fasteners. Now drill holes on the marks and insert plastic anchors. Hold the mounting plate and tighten the screws. 

3. Fit the bracket

   After making the markings for the holes, remove the wall hook bracket and make the holes in the wall with drilling machine at these markings. Thereafter, keep the bracket in place again on the wall and fit it with the screws in the drilled holes.

4. Make a Hole for the Outlet Pipe

   Make a small hole of about 3 inches near the bracket across the wall or partition. Through this hole, the refrigerant tubing connecting the indoor and the outdoor will pass. These tubings are insulated hence they need a hole of large diameter. The drain pipe through which the dew water is drained also passes through this whole. Through this hole, the power supply cable and electric cable connecting the indoor and the outdoor unit also pass.

5. Mounting the indoor AC unit

   Now remove the split AC’s front cover and lift it up towards the mounting plate. Through the outlet hole drilled in the wall, send through the two copper pipes, drainage pipe, and the wire. Make sure the bends in the copper pipes are smooth to maintain good cooling performance. Preferably, bind all the four together with electrical tape. Now carefully mount the AC unit on the mounting plate. Also, attach the front cover to the AC.

6. Tilting the Indoor Unit

   The indoor unit is given a slight tilt of about 2-3 degree towards the drain pipe. This enables an unhindered flow of dew water towards the water space where drain water is collected and drain pipe is connected for removal of water. This angle should be just sufficient to enable the flow of water without disturbing the looks of the indoor unit due to the high angle of tilt. Too small angle will not serve the purpose and high angle will make the easy looks shabby and also unbalance the blower inside the unit. The level of the unit can be checked with the level bubble gauge.

   With this, the installation of the indoor unit is almost over. It is now ready to be connected to the refrigerant tubing and the outdoor unit. The power supply cable is yet to be connected.

7. Choosing Location of the Outdoor Unit of Split AC

   Outdoor Unit:

   Here are some points to consider when deciding the location of the outdoor unit:

   a) The outdoor unit should be located in the open space preferably on the terrace so that the air can flow freely over the compressor and the condenser. If the terrace is not available it can be kept on the awning above the wall or it can be hanged on the external wall supported by the angles.

   b) The location of an outdoor unit should be such that it is easily accessible for carrying out the maintenance works of the compressor, condenser, and other devices. The installation and gas charging also should be convenient.

   c) There should not be any hindrances in front of the outdoor that would block the passage of fan air from passing to the open space. Any blockages will seriously affect the performance of the AC and can also lead to the burning of hermetically sealed compressor coil.

   d) The surface on which the outdoor unit is to be installed should be rigid enough to avoid its vibration. The vibration of the outdoor unit will raise excessive noise and also lead to the breaking of the copper tubing and leakage of the refrigerant.

   It is always advisable to keep the outdoor unit at the height above of the indoor unit. If the outdoor unit is kept at a level below the indoor, some of the compressor power is used in pumping the refrigerant against the gravity, thus reducing the overall performance of the compressor. Most of the outdoor units are quite silent so one does not have to worry about their noise. The internal parts of the outdoor unit are shielded from the rain and sun rays so one can rest assured about their safety in different climatic conditions.

8. Fixing the brackets

   After selecting the right installation area, starting by making a drilled hole for the brackets. Make sure they are horizontally aligned. Fix the bracket with the help of shipped fasteners.

9.  Mounting the outdoor unit

   Now lift the outdoor unit of the split AC and place it on the bracket at the same time make sure the screw holes of the bracket and the AC unit coincide. Bolt up the AC unit with the bracket firmly.

10. Connecting the wires

    Open the cover over the electrical ports. According to the connection diagram of the AC unit, connect the power cable to the outdoor unit. It is necessary to connect the wires as the manufacturer suggests to avoid damage.

11. Connecting the copper pipes

    Before connecting the copper pipes, use the vacuum pump to clean the copper pipes. Now connect the copper pipes to the corresponding pipe port with the help of flare nuts. Make sure the flare nuts are tightly closed. Now open both the gas valves.

Done! For any professional help regarding installing a split air conditioner, please book an ac installation service on UrbanHands.