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For  your  safety  and  to  ensure  good  treadmill  performance,  the  ground 
on  this  circuit  must  be  non-looped.  Please  refer  to  NEC  articles  210-21 
and 210-23. Your treadmill is provided with a power cord with a plug listed 
below  and  requires  the  listed  outlet. Any  alterations  of  this  power  cord 
could void all warranties of this product..
CHAPTER 2: IMPORTANT SAFETY INSTRUCTIONS 
2.3 ELECTRICAL REQUIREMENTS
MATRIX DEDICATED CIRCUIT / ELECTRICAL 
REQUIREMENT INFO
All Matrix treadmills require the use of a 20 amp "dedicated 
circuit" with a non-looped (isolated) neutral / ground for the power 
requirement.  Quite simply this means that each outlet you plug 
your treadmill into should not have anything else running on that 
same circuit.  The easiest way to verify this is to locate the main 
circuit breaker box, and turn off the breaker(s) one at a time.  Once 
a breaker has been turned off, the only thing that should not have 
power to it is the treadmill.  No lamps, vending machines, fans, 
sound systems, or any other item should lose power when you 
perform this test.
Non-looped (isolated) neutral / grounding means that each circuit 
must have an individual neutral / ground connection coming from it, 
and terminating at an approved earth ground.  You cannot "jumper" 
a single neutral / ground from one circuit to the next.  
In addition to the dedicated circuit requirement, the proper gauge 
wire must be used from the circuit breaker box, to each outlet that 
will have the maximum number of units running off of it.  If the 
distance from the circuit breaker box, to each outlet, is 100 feet or 
less, then 12 gauge wire may be used.  For any distance greater 
than 100 feet from the circuit breaker box to the outlet, 10 gauge 
wire must be used.