This is an excellent website on Qigong and the 6 healing sounds.
qigonghealingarts.org
Organ Element Color Sounds
Liver Wood Green Shuu
Heart Fire Red Haaa
Spleen Earth Yellow Whoo
Lungs Metal White Tsss
Kidneys Water Blue Fuu
For the triple burner, the sound is Heeeeeeee, however it is made without actually making the vocal chords vibrate. Your mouth just needs to be in the open position and relaxed as the sound is formed.
Click the above link for more information.
