its hooked up wrong. it should cycle.

There are dip switches in the air handler that need to be set for the variable-speed air handler to work properly. With that said, your air handler is indeed wired wrong to the thermostat (nothing to do with the dip switches). When the chuckle-head who installed this comes back and fixes it, have them go over the dip switch settings with you so you can be sure that they set them up properly for your system size.