Precor Elliptical Fitness Crosstrainer EFX - Manual (Page 68)

Product Owner's Manual: Important Safety Instructions 6
Electrical Recommendations: All
Equipment Excluding Treadmills
Note: This is a recommendation only. NEC (National Electric
Code) guidelines or local region electric codes must be followed.
For equipment fitted with a P80 console or Personal Viewing
System (PVS) screen a separate power connection is required. For
a 20 amp branch circuit up to 10 screens can be connected. If the
branch circuit has any other devices plugged into the circuit the
number of screens must be reduced by the wattage of the other
devices.
Note: The typical splitter power cords that have IEC-320 C13 and
C14 plugs have a recommended maximum capacity of five
screens.
Figure 1: IEC-320 C13 and C14 plugs