The normal HDB installation will take 1 full day. And for other property air conditioner installation will have to depend on the piping length. Generally, 1 fan coil per day will be a safe estimation.

An inverter air conditioner uses an inverter circuit to regulate the rotational speed of the compressor to match the output of the compressor to the cooling pump load. This reduces the number of times the compressor stops and starts as the load varies, so saving on electricity bills and reducing noise levels compared to non-inverter models.

Although there are many brands of air conditioner in the market right now, they have similar function. Every brand has a few air conditioner models that they are good in. There is no particular brand that we can recommend which is better than the rest. One very important point to note is that the installation of the air condition plays an important role when it comes to having problem like water and gas leaking. With good installation, the occurrence of these problems can be kept at a minimal level.

The blower and air filter is dirty and clogged with dust.
The thermostat is set too high.
The unit is undersize.
The orientation of the room (eg. facing direct sunlight).
The refrigerant gas needs to be topped up.

The drainage pipe could be choked with dirty particles so the water cannot be drained out, causing the leakage from the fancoil unit.
This could be due to poor installation by the contractor whereby there is no proper gradient of the drainage pipe.

Identifying the areas that you require airconditioning is the important first step.
Next, determine the specific types of aircon that you want (power,brands,savings,etc).
A professional contractor will be able to help you choose the right types that suit your needs.

All air conditions should be serviced within a 2 month period. This could also be shorter depending on the usage pattern. Servicing them on a bi-yearly schedule can also be done based on your usage. Whether you are servicing on a 2 month or 3 month schedule, the most important is getting the air conditioner serviced in time before they break down.

The blower evaporating coil of the air conditioner may be dirty. Please contact qualified serviceman to service your air conditioner.

Cleaning of fan coil and the cover of the air condition can be done easily but to take out the water tray will be tough for some people. To vacuum the drainage system and to check the refrigeration level cannot be done without the equipment. The knowledge of checking the working system is also important in maintaining the air-condition in good condition.