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Tel. 1-877-264-1014 (toll free), 1-541-349-9000, Fax: 1-541-343-9000
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QuickStart Setup
Step 1: Check your order to make sure that all parts are included. For the 300 watt kit, this is three 100 watt so-
lar panels, three 10-amp inline fuses, two pairs of MC4 T-branch connectors, a pair of 15-foot MC4-to-MC4
cables, a red/black 6” MC4-to-bare cable pair, a 5-foot (10 AWG) red/black bare-wire-to-ring-lug cable
pair (charge-controller-to-battery), a 5-foot (4 AWG) red/black cable pair (battery-to-inverter), a Grape So-
lar PurePower 1800 inverter, and a GS-PWM-COMET-40 charge controller.
Step 2: For optimum output, place the panels so they are facing due south at approximately the same angle as
your latitude, in full sun. If you are connecting the system during daylight, cover the panel with cardboard,
cloth, or a similar option so that it does not output power. Place the panel so it is facing due south at approx-
imately the same angle as your latitude, in full sun.
GS-300-KIT EXPANDABLE PHOTOVOLTAIC
POWER GENERATION SYSTEM
CONFIGURATION MANUAL Rev. 180601
Valid from June 2018
Basic Wiring Diagram
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