GP-PWM-30-UL
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© 2018 GoPower!
2.0 IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
THIS MANUAL CONTAINS IMPORTANT INSTRUCTIONS FOR MODEL
GP-PWM-30-UL THAT SHOULD BE FOLLOWED DURING
INSTALLATION AND MAINTENANCE OF THE GP-PWM-30-UL.
Disconnect all
power sources
Electricity can be very dangerous. Installation
should be performed only by a licensed
electrician or qualified personnel.
Battery and
wiring safety
Observe all safety precautions of the battery
manufacturer when handling or working around
batteries. When charging, batteries produce
hydrogen gas, which is highly explosive.
Wiring
connections
Ensure all connections are tight and secure.
Loose connections may generate sparks and
heat. Be sure to check connections one week
after installation to ensure they are still tight.
Work safely
Wear protective eyewear and appropriate
clothing during installation. Use extreme
caution when working with electricity and when
handling and working around batteries.
Observe
correct polarity
Reverse polarity of the Battery 1 terminals will
cause the controller to give a warning tone.
Reverse connection of Battery 2 terminals will
not cause an alarm. However, the controller
will not charge or display information for
Battery 2 on the LCD. The controller will not
function unless Battery 1 terminals are
connected to a battery with proper polarity.
Failure to correct this fault could damage the
controller.
Do not exceed
the GP-PWM-
30-UL max
current ratings
The maximum current of the solar system is
the sum of parallel-connected PV module
–
rated short circuit Currents (Isc) multiplied by
1.25. The resulting system current is not to
exceed 37.5A. If your solar system exceeds
this value, contact your dealer for a suitable
controller alternative.
Do not exceed
the GP-PWM-
30-UL max
voltage ratings
The maximum voltage of the array is the sum
of the PV module
–rated open-circuit voltage of
the series connected modules multiplied by
1.25 (or by a value from NEC 690.7 provided in
Table 690.7 A). The resulting voltage is not to
exceed 35V. If your solar system exceeds this
value, contact your dealer for a suitable
controller alternative.
