Installation Guide

Classic SL owner’s manual REV E 2056
7 |
P a g e 10- 0 0 1 - 3 R E V : E
DC and Battery-Related Installation Requirements:
 All DC cables must meet local and national codes.
 Shut off all DC breakers before connecting any wiring.
 Torque all the Charge Controller’s wire lugs and ground terminals to the specs found on page 21.
 Copper wiring must be rated at 75° C or higher.
 Keep cables close together (e.g., using a tie-wrap) as much as possible to reduce inductance.
 Ensure both cables pass through the same knockout and conduit to allow the inductive currents to cancel.
 DC battery over-current protection must be used as part of the installation on the input and output.
 Breakers between the battery and the Classic must meet UL489 standards.
 Breakers between the DC source and the Classic must meet UL1077 or UL489 standards.
Design the battery enclosure to prevent accumulation of hydrogen gas at the top of the enclosure. Vent the battery
compartment from the highest point to the outside. A sloped lid can also be used to direct the flow of hydrogen to
the vent opening. Sealed (AGM, Gel etc) batteries do not normally require ventilation. Consult your battery
manufacturer for details.
WARNING: PERSONAL PRECAUTIONS DURING INSTALLATION
WARNING BATTERIES PRESENT RISK OF
ELECTRICAL SHOCK, BURN FROM HIGH SHORT CIRCUIT CURRENT, FIRE OR
EXPLOSION FROM VENTED GASES. FOLLOW PROPER PRECAUTIONS.
 Someone should be within range of your voice to come to your aid if needed.
 Keep plenty of fresh water and soap nearby in case battery acid contacts skin, clothing, or eyes.
 Wear complete eye protection. Avoid touching eyes while working near batteries. Wash your hands with
soap and warm water when done.
 If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters an eye, flood
the eye with running cool water at once for at least 15 minutes and get medical attention immediately
following.
 Baking soda neutralizes lead acid battery electrolyte. Keep a supply on hand in the area of the batteries.
 NEVER smoke or allow a spark or flame in vicinity of a battery or generator.
 Be cautious to reduce the risk of dropping a metal tool onto batteries. It could short the batteries or other
electrical parts that can result in fire or explosion.
 Never wear metal items such as rings, bracelets, necklaces, and watches when working with a battery or
other electrical circuits. A battery can produce a short circuit current high enough to weld a ring or the like
to metal, causing severe burns.