Quote Originally Posted by oj88 View Post
That thought also crossed my mind. Then maybe put a removable partition if you want to cool just half of the room for certain occasions.

The downside is, this approach will probably be 10-20k more expensive. Not to mention the additional outdoor unit using up more space.
Kung base sa usual designs ng mga appliance (and also sa mga control systems sa mga industrial applications), usually pag 4hp, laging full power yun when ON... then pag off, syempre walang power...

with inverter type models, the speed of the revolution of the motor can be decreased somewhat depending on the load (kapag malamig na), then the motor can turn slower (thus consuming less electricity) than if it is full power... but most of the savings in electricity is realized upon startup... sa ordinary motor starter, the huge spike in current when starting really takes up the bulk of the consumption.. then pag continuous on na.. okay na... with the inverter type, the inverter slowly starts up the motor and slowly shuts it down, thereby avoiding the huge spike in current when quick starting... dun nakakatipid ang inverter... dyan din yung basis na sinasabi ng mga technicians na hindi maganda yung patay sindi ang aircon... lalakas sa kuryente...


in the plan you have: using 2hp motors to control a 4hp ... load... technically, the only way to do it is to buy 2 units of 2hp models... as you say may divider din sa room.. then operate one or both as needed...

unless you design it like the way malls do (separate ang chiller, separate ang condenser, evaporator etc) that can be operated depending on the load =)...

may mga systems ata na single compressor, multiple vents (yung indoor unit).. this can save electricity to a point.. malamang the design will use just a single thermostat (instead of using 2 thersmostat), so the savings derived is from the assumed lesser frequency ng ON/OFF ng compressor when the temp has been reached... but it wouldn't be an efficient way to do it...