Actually you shouldn’t (if you can avoid it and I understand it’s expensive) let room just sit in 30C heat if you plan on air conditioning them later. When you are cooling a room, it’s just the air: the furniture, walls, everything has become a heat sink in 30 degree weather.
So you are better off keeping the room somewhat cool before you use it and go full cool.
In my experience you can keep the rooms somewhat cool just but closing the curtains. If they are shaded they don’t collect that much heat. The AC only has to run for couple minutes for them to be nicely cool. If the room gets really hot (I once ranted an attic that was like an oven during the summer) it’s hard to keep it a bit cool. Either the AC is running constantly or it gets really hot.
Actually you shouldn’t (if you can avoid it and I understand it’s expensive) let room just sit in 30C heat if you plan on air conditioning them later. When you are cooling a room, it’s just the air: the furniture, walls, everything has become a heat sink in 30 degree weather.
So you are better off keeping the room somewhat cool before you use it and go full cool.
In my experience you can keep the rooms somewhat cool just but closing the curtains. If they are shaded they don’t collect that much heat. The AC only has to run for couple minutes for them to be nicely cool. If the room gets really hot (I once ranted an attic that was like an oven during the summer) it’s hard to keep it a bit cool. Either the AC is running constantly or it gets really hot.