11.
106. Battery Information
Important Safety Precautions
The installer must take these precautions:
1)
Wear protective clothing, eye-wear, rubber gloves and boots. Batteries contain corrosive acids or
caustic alkalis and toxic materials and can rupture or leak if mistreated. Remove rings and metal
wristwatches or other metal objects and jewelry. Don’t carry metal objects in pockets where the
objects can fall onto the batteries or into the
VST
inverter system.
2)
Tools must have insulated handles so that they will not short battery terminals. Do not allow a tool
to short a battery terminal to another battery terminal or to the cabinet at any time. Do not lay tools
or metal parts on top of the batteries, and do not lay any objects where they could fall onto the
batteries or into the cabinet.
3)
Install the batteries as shown on the battery wiring diagram provided in this manual. When con-
necting cables, never allow a cable to short across a battery’s terminals, the string of batteries, or
to the cabinet.
4)
Keep the cable away from any sharp metal edges.
5)
Install the battery cables so they cannot be pinched by the
VST
inverter system cover/door.
6)
Where conductors may be exposed to physical damage, protect conductors in accordance with
NEC requirements.
7)
Full voltage and current are always present at the battery terminals. The batteries used in this sys-
tem can produce dangerous voltages, extremely high currents, and possible risk of electric shock.
Batteries may cause severe injury if the terminals are shorted together or to ground (earth).
Be extremely careful to avoid electric shock and burns caused by contacting battery terminals or
shorting terminals during battery installation. Do not touch uninsulated battery terminals.
8)
A qualified electrician who is familiar with battery systems and required precautions must install
and service the batteries. Any battery used with this unit shall comply with the applicable require-
ments for batteries in the standard for emergency lighting and power equipment, UL 924. Cabinets
are designed to be used with, and batteries must be replaced by identical cells or a Manufacturer
approved equivalent. If using substitute batteries not supplied by the Manufacturer, the unit’s UL
listing will be void, and the equipment may fail to perform properly. The installation must conform
to
national and local codes as well. Keep unauthorized personnel away from batteries.
106.1 Tools
The following tools are required to install the system batteries:
Socket Set, Tape, Digital Volt-Ohm Meter, Safety Glasses
CAUTION: Always use insulated tools for battery installation.
106.2 Battery Installation and Connection
CAUTION: Prior to connection of battery string to the inverter/charger assembly make sure the
VST
Battery Switch S2 is in the OFF (down) position.
*
VST
-55/125 and
VST
-110/125 Models
are supplied with two (2) batteries installed (24VDC string
voltage) with the positive (+) battery lead disconnected. This connection will need to be completed
prior to system startup. See
Wiring Diagrams 1 and 2
for verification of proper battery connections.
*
VST
-110/250 and
VST
-220/250 Models
are supplied with four (4) batteries shipped separately
(48VDC string voltage). See
Wiring Diagram 3
for battery connections. Install batteries with terminals
facing outwards. Connect batteries using wiring conductors supplied with the system.
