Installation Guide
10 pg 
“--” will flash on the display when time is selected. Press the dial to see the preset time. Time icon will flash. Rotate the 
dial to adjust the time and press the dial again to exit. The display will show current temperature again. 
“DAN” will flash on the display when settings is selected. Press the dial and the steam generator will drain waste water. 
(It only works when the steam is off) Keep pressing the dial for at least 3 seconds to make conversion between Celsius 
and Fahrenheit.  
Modular Introduction 
Bluetooth Option  
Connecting the Bluetooth Box 
The Blue tooth connection (GH21-HT) box has 3 wires coming out from the side. One wire is the power wire, one wire is 
the Chroma-therapy light wire and the last wire is the speaker wires (L&R). 
1.  Plug the power wire from the Bluetooth connection Box into the Power Box (GH21-PB). 
NOTE: In order for the power box to “RECOGNIZE” the new accessory, you must unplug the power supply for the 
power box briefly then plug it back into the power supply. 
2.  Connect the speakers to the appropriate wire coming from the Blue tooth control box. 
Controlling the Bluetooth Option 
1.  Rotate the dial on the keypad until the Blue Tooth icon is highlighted, the display will flash Audio, press the dial 
and the display will read ON. You will hear a brief note from the speakers indicating the setup is complete. 
2.  Go to the device you wish to connect with and search for a new Blue Tooth device, the device you are looking 
for is MH-M18. 
3.  Once connected you can control the music through the device or the keypad. 
4.  To use the keypad, rotate the dial until the   is highlighted, then press the dial. You can now move your 
channels or songs up or down as desired, once you are satisfied press the dial to get out of the mode. 
5.  To use the keypad to adjust the Volume rotate the dial to the   icon, press the dial now you can rotate the 
dial to have the volume raised or lowered. Once you have the desired volume press the dial and you will be out 
of volume mode. 
Controlling Chroma-Therapy Light 
If the optional Blue Tooth accessory box has been installed, you have the option of installing the Chroma-therapy Light 
system. The lights are designed to be installed in the steam room and to be used when taking a steam. When the Light 
icon on the keypad is highlighted and the dial is pressed, the WHITE light will come on and the display will show ON then 
change to COLOR. Continue to press and hold down the dial and the lights will change to different colors as it cycles 
through the different colors. 
The color pattern will be: White, Blue, Red, Green, Purple, Yellow, and Cyan 
When you get to the color you want release the dial and the light will remain at that color, until the dial is pressed or the 
lights are shut off. 
The light can be set to continuously rotate colors by pressing the dial down and hold it down while the lights cycle 
through the various colors and when the lights get back to the starting WHITE light release the dial and the lights will 
cycle through the different colors. 
Note: The lights will reset when the unit is turned off each time. 










