Installation - Njoy Echo Pro Series User Manual

• Caution - risk of electric shock. Even after the unit is disconnected
from the mains (building wiring outlet), components inside the UPS
system are still connected to the battery and electrically live and
dangerous.
• Before carrying out any kind of service and/or maintenance,
disconnect the batteries and verify that no current is present and no
hazardous voltage exists in the terminals of high capability capacitor
such as BUS-capacitors.
• Only persons are adequately familiar with batteries and with the
required precautionary measures may replace batteries and supervise
operations. Unauthorized persons must be kept well away from the
batteries.
• Caution - risk of electric shock. The battery circuit is not isolated
from the input voltage. Hazardous voltages may occur between the
battery terminals and the ground. Before touching, please verify that
no voltage is present!
• Batteries may cause electric shock and have a high short-circuit
current. Please take the precautionary measures specified in this
manual and any other measures necessary when working with
batteries: remove wristwatches, rings and other metal objects, use
only tools with insulated grips and handles.
• When changing batteries, install the same number and same type of
batteries.
• Do not attempt to dispose of batteries by burning them. This could
cause battery explosion.
• Do not open or destroy batteries. Escaping electrolyte can cause
injury to the skin and eyes. It may be toxic.
• Please replace the fuse only with the same type and amperage in
order to avoid fire hazards.
• Do not dismantle the UPS system.
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Installation

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Bypass
Input PFC
Input BUS
Filter AC/DC
Charger
Battery DC/DC
AC/DC
Line Mode
Battery Mode
Bypass Mode
System block diagram
4.1 Hardware installation guide
Step 1. Battery charge loss may occur during shipping and storage.
Before using the UPS, it's strongly recommended to charge batteries for
four hours to ensure the batteries' maximum charge capacity. To recharge
the batteries, simply plug the UPS into an AC outlet.
Step 2. Connect your computer, monitor and any externally-powered
data storage device (Hard drive, Tape drive, etc.) into the outlets only
when the UPS is off and unplugged. DO NOT plug a laser printer, copier,
space heater, vacuum, paper shredder or other large electrical device into
the UPS. The power demands of these devices will overload and possibly
damage the unit.
Step 3. Press the ON switch to turn the UPS on. If an overload is
detected, an audible alarm will sound and the UPS will continuously emit
one beep per second. For resetting the unit, unplug some equipment
from the outlets. Make sure your equipment carries a load current within
the unit's safe range, (refer to the technical specifications).
Step 4. This UPS is equipped with an auto-charge feature. When the
UPS is plugged into an AC outlet, the battery will automatically charge,
even when the unit is switched off.
Inverter INV Output
Output
DC/AC RY Filter
LCD Module
Control
& USB & DB9
Monitoring
SNMP Slot
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