HOW MUCH ELECTRICITY DOES THE NON-INVERTER DAIKIN USE?
Before we permanently wired in the Daikin, we wanted to get an accurate measurement of how much power the unit used when its compressor is running. The answer is shown above, 478.5 Watts. How much power you will actually use depends on the percentage of time the compressor is running. When the compressor is not running, the unit uses very little power. When the compressor starts up, it momentarily uses quite a bit more power, as does any AC motor when it starts up. This is why regulators and utility companies like inverters. With an inverter, there are no demand surges as the inverter compressor runs continuously. I guess the theory is that that when thousands or tens of thousands of compressors cycle on, the peak power demand the utility has to provide is higher than it would be if everyone had inverter units. We did not measure the startup Wattage, but assume it’s 1.5KW or so, for the brief moment the compressor is switched on. This does not mean that inverters are inherently more efficient than conventional units. It fact, they may be less efficient because they waste energy converting AC to the DC power the inverter compressor uses. The added electronics are what make inverters more likely to fail and more expensive to repair.
We have made several posts about the ongoing problems with our P29,000 ($660) Samsung inverter split air conditioning unit. Faced with repeated repairs and, to our mind, unsatisfactory responses from Samsung in Iloilo, Manila and Korea we decided to cut our losses and replace the Samsung with a Daikin conventional, non-inverter unit. Read the updated story of why we gave up on Samsung and why we gave up on inverter air conditioners at http://myphilippinelife.com/inverter-air-conditioners-not-the-best-choice-for-everyone/