Digital thermostat

Hello everyone i was having a thermostat problem with my cougar 5 th wheel trailer last fall ( the furnace would not stop running) so i installed a digital thermostat..... The furnace worked great but my ac will not run.....would anyone have any advice on how to properly wire the thermostat so the ac will work ? The dometic thermostat was wired as follows
Red wire - 7.5
Yellow wire- cool
White wire -furnace
Blue wire - hi fan
Orange wire - fan
Black wire - ground

Here is the wiring on the new thermostat

Thanks in advance for the help