CIRCUIT
BREAKER
WHITE
GROUND
BLACK
GREEN
ABC
VOLT-OHM
METER
CHECK YOUR POWER SOURCE
Using a volt-ohm meter, check the following voltages at the circuit breaker panel:
AC = 108 Volts AC Minimum, 132 Volts MAX
AB = 108 Volts AC Minimum, 132 Volts MAX
BC = Must be less than 1.0 Volts AC
WIRING: POWER SOURCE TO CONTROLLER
• Observe polarity.
• Observe proper wire colors while making electrical connections.
• Provide an external surge suppressor capable of maintaining system integrity.
• Provide overload protection and a disconnect means for equipment serviceability as required by local and state
code.
• Conduit cannot be used as the ground. (There must be a “WIRED” ground.)
• Very Important: A grounding electrode conductor shall be used to connect the equipment grounding
conductors, the equipment enclosures, and where the system is grounded, the grounded service
conductor to the grounding electrode.
120VAC
SUPPLY
BLK
GRN
WHT
HOT
RTN
GND
GRN
WHT
BLK
SPG
SINGLE POINT
GROUND
8
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