replaced compressor,dryer,cooling fan and runs fine now but when air is off and

there might be a bleeder valve on the t stat housing if not then take the rad cap off and run it to operating temp and see if there is any bubbles coming out of the rad ,if so then let it run for a couple of minutes ,then shut the car off and let it cool down and top up anti freeze ,then put the cap back on and let it run to see if it overheats...