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Home > Charge Controller Support > PWM Solar Charge Controller Support > PWM-10-FM > GP-PWM Solar Controller 10-FM: Cautions & Warnings
GP-PWM Solar Controller 10-FM: Cautions & Warnings
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These are important instructions for model GP-PWM-10-FM that should be followed during installation and maintenance of the GP-PWM-10-FM.

 

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 terminals and array will cause the controller to give a warning tone. The controller will not function unless battery terminals are connected to a battery with proper polarity. Failure to correct this fault could damage the controller.

 

Do not exceed the GP-PWM10-FM Amp current and max voltage 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 12.5A. If your solar system exceeds this value, contact your dealer for a suitable controller alternative.

 

Do not exceed the GP-PWM10-FM 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.

 

Products covered in this article: GP-PWM-10-FM

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