Owner’s Manual | GP-PWM-25 Regulator
7
© 2009 Carmanah Technologies Corporation
Last revised: July 2009
4. Wiring the GP-PWM-25.
Wire the GP-PWM-25 according to the wiring schematic in
Section 11
. Run wires from the solar array and the batteries to the location of the GP-
PWM-25. Keep the solar array covered with an opaque material until all wiring is
completed.
Torque all terminal screws to 16 inch pounds (1.8N.m)
Connect the battery wiring to the regulator first and then connect the battery wiring to the
battery.
IMPORTANT: Always use appropriate circuit protection on any conductor attached to a
battery.
With battery power attached, the regulator should power up and display information.
Connect the solar wiring to the regulator and remove the opaque material from the solar
array. The negative solar array and battery wiring must be connected directly to the
regulator for proper operation. Do not connect the negative solar array or negative battery
regulator wiring to the chassis of the vehicle.
5. Mounting
the
GP-PWM-25.
Mount the GP-PWM-25 to the wall using the included four
mounting screws.
Congratulations, your GP-PWM-25 should now be operational. If the battery power is low and the
solar array is producing power, your battery should begin to charge.
6. Re-torque:
After 30 days of operation re torque all terminal screws to ensure the wires are properly
secured to the controller.
6.0 Operating Instructions
Power Up
When the GP-PWM-25 is connected to the battery, the
GP-PWM-25 will go into Power Up mode. The controller
will select the battery voltage automatically. If the battery
voltage is above 20 Volts the controller assumes a 24
Volt battery system.
Icons Displayed
: Three horizontal dashes
Sleep Mode
If the GP-PWM-25 is in Sleep Mode, the display will be
blank. Press the
A Button
to wake it up.
NOTE: If the battery voltage is below 6 Volts the GP-
PWM-25 will not function.
Sleep Mode:
The GP-PWM-25 will go into “sleep mode” after 30 minutes of no user activity
(pushing the buttons). In sleep mode the GP-PWM-25 turns it’s display off to conserve power. To
bring the regulator out of sleep mode, simply press the
A Button
and the display will reappear.
