UPS
Installation Plan and Unpacking
3.2.2
UPS System Power Wiring
Preparation
The UPS
system
installation
must meet
the following
guidelines:
•
The
system must
be installed on a level floor
suitable
for
computer
or
electronic
equipment.
•
The
system must
be installed
on clean, dust-free, stable
concrete, non-corrosive,
non-combustible surfaces
only
.
Failure to follow
guidelines
may void your
w
ar
rant
y
.
The UPS
equipment operating environment must meet
the
weight requirements shown in
Table 3-1 and
the
size
requirements shown
in Figure 3-1.
Dimensions
are in
millimeters (inc
hes).
W
ARNING
•
HIGH
TOUCH
CURRENT EARTH
CONNECTION
ESSENTIAL
BEFORE CONNECTING
SUPP
L
Y
.
As
a result of the
connected
loads high
leakage current
is
possible. Connection
of the
earth
(ground) is
required
for proper
product operation.
Do not check UPS
operation
by removal
of
the
Earth (ground)
connection.
•
The UPS unit is not
suitable
for
IT
and
corner-earthed power distribution
sy
stems.
W
ARNING
•
RISK
OF
ELECTRIC
SH
OCK.
This ups
receives power
from more than one
source
-
disconnection
of the AC and the DC
source
is
required
to de
-
energies
this unit
before
servicing. After
disconnecting
the utility
power
and the DC
power, authorized
ser
vice
personnel
should wait at
least five
minutes
for
capacitor bleed-off before attempting internal
access
to the UPS
module.
• Backfeed protection
is an internally fitted option on this device. If this option, or an
e
xternally
fitted
backfeed contactor
are not installed.
Select backfeed contactor
are
shown in
Table
3-7
and Table
3-8.
•
The below label should be applied on all primary
power isolators
installed
remote
from
the
UPS area and on
external access points.
CAPACITORS
I
NSID
E
REQUIRE 5
MINU
TES
TO
D
IS
CH
A
RG
E
TO A SAFE
LEVEL
AFTER
ALL
POW
E
R
IS
REMO
V
ED.
SEE
HANDBOOK FOR
I
NSTRUCTION
S.
•
Refer to national and local electrical
codes
for
acceptable external
wiring
practices.
•
To allow for future
kVA
upgrades, consider
installing a
de-rated
UPS using wiring and
external o
v
ercur
rent
protection breakers
sized for a fully rated
UPS
.
•
For
external
wiring, use 90°C
copper
wire. Wire
sizes
listed in Table 3-5 are for
copper
wiring only. If wire
is
run
in an
ambient temperature greater
than 30°C, higher
temperature
wire and/or larger size wire may
be
necessary.
Wire
sizes
are
based
on using the
specified break
ers.
•
Material and labour for
external
wiring
requirements
are to be
supplied
by
designated personnel.
•
If installing an
external maintenance bypass,
all
feeds
to the UPS including the Rectifier Input Breaker (RIB)
(if
installed)
must
have a
service disconnect independent
of the
maintenance bypass power
path.
Most
maintenance bypass solutions
provide UPS input
feeds
derived from but
isolated
from the
maintenance bypass
power
path. If the
maintenance bypass
solution being installed
does
not provide such
functionalit
y
,
DO NOT use
a single
feeder breaker
to supply both the UPS and the
maintenance
b
ypass.
Eaton 93E MK2 UPS (10-40kVA, 380/400/415V) Installation and Operation
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