How do I perform the initial test after installing the MHP1000SQ dryer to confirm it is heating properly?

Set the dryer on a full heat cycle (not an air cycle) for 20 minutes and start the dryer. After it has been running for 5 minutes, open the dryer door and feel for heat. If you do not feel heat, turn off the dryer and verify that the gas supply line shutoff valve is open; if the valve is already open, contact a qualified technician. (Page 17)