what renette said was pretty spot on, but I would try to take as much of the tank water as possible.
keep the filter bed wet. if you're running a canister (I assume you are seeing as you have a chiller) take the top off the filter and put the filter media in a bucket that contains a good amount of the tank water. keeping the filter media wet with tank water will keep the good bacteria that process wastes that your axies excrete alive longer.
keep all tank ornaments/stones etc wet too in another bucket of tank water. the good bacteria also live on them.
as for the chiller, you guessed it the good bacteria also thrive in there. in fact they thrive on just about any surface in your tank, inside hoses, in the filter, on the tank walls, inside the chiller. the chiller will hold some water inside so don't drain it. just make sure it won't tip over and drain out when you move it. disconnect the hoses and put them in another bucket of tank water to keep them wet inside. be careful when you loosen the fittings, if they are plastic they could be brittle.
basically keep as much of the equipment wet as possible. obviously you'll need to drain the tank. then just set it back up as soon as possible.
