MNPV2, 3, 4 and 6 Combiner Manual

MNPV2, MNPV3, MNPV4, MNPV6 Instructions (continued)
2 | P a g e 10- 0 1 0 - 1 R E V : G
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS! - These instructions contain important safety and operating instructions for the MidNite
Solar MNPV2, MNPV3, MNPV4 and MNPV6 solar combiner boxes.
If you do not fully understand any of the concepts, terminology, or hazards outlined in these instructions, please refer
installation to a qualified dealer, electrician or installer. These instructions are not meant to be a complete explanation of a
renewable energy system.
GENERAL PRECAUTIONS
WORKING WITH OR IN THE VICINITY OF A LEAD ACID BATTERY, SEALED OR VENTED IS DANGEROUS. VENTED BATTERIES
GENERATE EXPLOSIVE GASES DURING NORMAL OPERATION. FOR THIS REASON, IT IS VERY IMPORTANT THAT BEFORE
SERVICING EQUIPMENT IN THE VICINITY OF LEAD-ACID BATTERIES YOU REVIEW AND FOLLOW THESE INSTRUCTIONS
CAREFULLY.
If service or repair should become necessary, contact MidNite Solar Inc. Improper servicing may result in a risk of shock, fire
or explosion. To reduce these risks, disconnect all wiring before attempting any maintenance or cleaning. Turning off the
inverter will not reduce these risks. Solar modules produce power when exposed to light. When it is not possible to
disconnect the power coming from the Photovoltaics by an external means such as a combiner, cover the modules with an
opaque material before servicing any connected equipment.
Never attempt to charge a frozen battery.
When it is necessary to remove a battery, make sure that the battery bank disconnect breaker is in the off position and that
the PV breakers, grid breakers and any other sources of power to the inverter are in the off position. Then remove the
negative terminal from the battery first.
To reduce risk of battery explosion follow these instructions and those published by the battery manufacturer as well as the
manufacturer of any additional equipment used in the vicinity of the batteries. Before installing the battery enclosure, read
all instructions and cautionary markings in or on any connected electrical equipment.
Avoid producing sparks in the vicinity of the batteries when using vented batteries. Provide ventilation to clear the area of
explosive gases. Sealed AGM and Gel batteries do not under normal conditions create explosive gases. Be especially
cautious when using metal tools. Dropping a metal tool onto batteries can short circuit them. The resulting spark can lead
to personal injury or damage to the equipment. Provide ventilation to outdoors from the battery compartment when
installing vented batteries such as golf cart T-105 batteries. The addition of a spill tray is also a good idea.
Clean all battery terminals. Very high currents are drawn from the batteries; even a small amount of electrical resistance
can result in overheating, poor performance, premature failure or even fire.
Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing or eyes. Wear complete eye and
clothing protection. Always avoid touching eyes while working near batteries. If battery acid or battery terminal corrosion
contacts skin or clothing, wash immediately with soap and water. If acid enters the eyes, immediately flood with cool
running water for at least 15 minutes and get medical attention immediately. Baking soda neutralizes battery acid
electrolyte. Keep a supply near the batteries.
Do not work alone. Someone should be in the range of your voice or close enough to come to your aid when you work with
or near electrical equipment.
Remove rings, bracelets, necklaces, watches etc. when working with batteries, photovoltaic modules or other electrical
equipment. Power from an illuminated photovoltaic array makes a very effective arc welder with dire consequences if one
of the welded pieces is on your person.
To reduce the risk of injury, connect only deep cycle lead acid type rechargeable batteries. Other types of batteries may
leak or burst, causing personal injury or damage.