Aircon Installation Singapore

CHECKLIST FOR PROPER INSTALLATION OF AIR-CONDITIONING SYSTEM TO OPTIMISE ENERGY EFFICIENCY PERFORMANCE

INDOOR UNIT
Selection

Choose the right capacity.
Oversized compressors cut in and out too often and more current would be drawn.
Undersized compressors run continuously, resulting in higher running cost.
Of the two types of indoor units i.e. cassette ceiling  and wall mounted , wall mounted type is sufficient for a typical household.

Aircon Installation, Singapore: Things to Consider

Avoid placing in direct sunlight 
Placing the indoor unit too high will result in more area to be cooled 
Keep the air inlet  and outlet  clear of any obstacles to ensure proper airflow.

Operation and Maintenance

Close all windows and doors when the air-conditioning is turned on.
Avoid frequent on and off.
Clean air filters regularly 
Maintain the indoor unit regularly to prevent dirt build-up, which could affect its cooling performance.
 
OUTDOOR UNIT
Aircon Installation, Singapore

Place away from direct sunlight.  Where possible, install protective awning 
Leave sufficient space around the outdoor unit for proper heat dissipation. If using multiple outdoor units, ensure that they are not placed too close to each other.
Do not block the fan opening  as this would restrict the amount of air drawn by the fan to cool the heat exchanger.
Use the correct refrigerant. 


Maintenances

During regular maintenance, clean the condenser fins to ensure good heat rejection from the condenser. 

 
PIPING
Selection

Use the correct pipe size 
Pipe thickness can range from 0.6mm to 0.8mm, depending on the refrigerant used. 
Pipe diameter are dependent on the air-conditioner's capacity and type of refrigerant used

Installation

Limit the distance between the indoor and outdoor units to keep the length of the connecting pipes as short as possible.
Ensure that pipes are well insulated. Where insulation is not possible, use a cork tape to cover up any exposed pipe  
Do not install 2 or more pipes within a single insulation sleeve 
Limit the number of elbow joints and bends.
Ensure that a proper drainage system has been put in place. Drainpipes should be installed with a descending gradient.
Ensure joints  are properly tightened and free from defects to prevent refrigerant leakage.

Maintenances

Check for leaks in the piping joints. 


 
ADDITIONAL TIPS FOR AIRCON INSTALLATION
Always engage a BCA-certified installer. A list of certified installers can be found at www.bca.gov.sg/citi/trained_inst.asp.
After installation, always retain the installation manual for future reference.
For more details on proper installation, operation and maintenance and use of your air-conditioning system, please refer to the units accompanying operation manual. 
Engage a certified installer to carry out periodic inspections and maintenance on your air-conditioner system. Routine checks may include:
Recharging refrigerant 
Checking and repairing leaks
Chemical cleaning