This receiver is usually located in front of the indoor unit and can be identified by a specially made sticker that allow infra-red frequency to pass through.

Take note that you need to have a good electrical knowledge to do this as the power supply to the printed circuit board is LIVE.

It is always a good practice to disconnect and isolate the power supply when you are troubleshooting the control board.

If you are not sure, get a qualified technician to check your unit.

The outdoor unit consists of a compressor, a fan and the condenser.

This is the place where heat from the indoor is transferred from the indoor to the outdoor and is rejected to the surrounding.

The indoor unit basically consists of an evaporator, an expansion valve and a fan.

Copper pipes are used to connect the flow of refrigerant between the indoor unit and the outdoor unit.

The power input can come from the indoor unit to the outdoor unit.

The non-inverter split air conditioner basically consists of a ONOFF compressor where the compressor is either ON fully or OFF fully.

The inverter based compressor can regulate the speed of the compressor depending on the load required.

Here is the breakdown of the typical controller for better understanding.

Westpoint Split Ac Drivers In The

The AC input from the mains has to be converted to DC voltage where it can be used to power the integrated circuits and drivers in the electronics circuit.

One is by using a step down transformer where the AC voltage is stepped down to voltage such as 25V AC or 12V AC.

This voltage is then converted to DC by the use of diode bridge as rectifier and electrolytic capacitor to smoothen the rectified voltage.

A 3-pin voltage regulator is used to get a fixed 5V DC or 12V DC power supply.

This low voltages are used to power the microcomputer, DC relays and other integrated circuits in the circuit.

This design is becoming more common as the quest for smaller space is becoming more critical.

There is usually a surge absorber or a varistor connected across the input of the power supply.

This is one device that can be easily damaged if the power surge or lightning occurred beyond its maximum rating.

Westpoint Split Ac Series With The

A fuse is placed in series with the input power supply to cutoff any overcurrent or short circuit that happened in the circuit.

This is another protective device used in most electronics circuit.

Infra-Red Receiver Board In order for the handheld remote control to send the settings to the controller at the air conditioner unit, there is at least an infra-red receiver printed circuit board that receives the signals from the handset.

Westpoint Split Ac Manual