Air-conditioner

Households

Energy SAVE Households

Household Appliances

Air Conditioner

Introduction
Household A
Household B

Air-conditioners are heavy energy guzzlers and households serious about saving energy should consider switching to energy efficient air-conditioners. Despite the initial high costs involved to replace existing air-conditioners with energy efficient ones, the cost savings can be significant over the life span of the appliance, especially for heavy users of air-conditioners. Households which need to cool more than one room should install multi-split air-conditioners instead of using a few single-split air-conditioners, and air-conditioners with inverters are generally more energy efficient when used at partial loads even for long hours. Air-conditioners without inverters should be used when at full load.

Household A has no air-conditioner.




Applications:
	Daily usage of 8 hours
Characteristics:
	Multi-split non-inverter system Compressor and its motor operate at constant speed; hence they fluctuate between ‘Full Power’ or ‘No Power’ mode à this frequent start-stop mechanism results in higher electrical consumption and the compressor tends to breakdown more easily. Full capacity of the single compressor used regardless of the number of rooms cooled




Applications:
	Daily usage of 8 hours
Characteristics:
	Multi-split non-inverter system 2 compressors used for 3 rooms: energy consumed is less than having one central compressor when less than 3 rooms are cooled

NEA's Database of Registered Goods for refrigerators as well as conditioners of different energy labeling can be found at http://els.nea.gov.sg/mels/aircon.asp