Installation Instructions
13
y Lay the second 
piece of cement 
board on top of 
the blanket 
making sure the 
material doesn’t 
shift.
y Making sure 
that the 
controller is not 
plugged into the 
wall, connect 
the heater 
power cords and 
thermocouples 
plugs on top of 
the HC7900 
controller. 
Set to PVC
y Plug the controller into the wall and push the on/off 
button. The displa\ZLOOÁDVKWKHFRQWUoller 
information and ask if you wish to bend PVC or 
decking. 
y Use the left arrow to move the curser to PVC and 
push the 9 key.










