6
Instruction Booklet
IB0162063EN
Effective January 2014
O & M Manual for the EGS Metered, Service
Entrance Automatic Transfer Switch with Relay Control
Eaton Corporation www.eatoncanada.ca
3.5 Standards
Eaton ATSs are available to meet NFPA 110 for standby power sys-
tems.
Eaton ATS equipment are listed for application by CSA. In addition,
Eaton ATSs are listed in the Legacy File LR96245 Master Contract
163545 by Canadian Standards Association under Standard 22.2
#178-1978
Section 4: Installation and Wiring
4.1 General
Eaton ATSs are factory wired and tested. Installation requires solidly
mounting the enclosed unit and connecting the power cables and
the auxiliary sensing circuits. Physical mounting procedures and
power cable connections are covered in this section.
Once a transfer switch is properly installed and wired, it should be
mechanically and electrically checked for proper installation and
operation. The procedures for these initial mechanical and electrical
checks are outlined in Section 5 of this manual.
Warning
BE CErTain THaT THE DEaDFrOnT iS PrOPErLY inSTaLLED BEFOrE THE
TranSFEr SWiTCH EQUiPMEnT iS PUT inTO SErViCE. THE DEaDFrOnT
PrOViDES PrOTECTiOn FrOM DangErOUS VOLTagES aT THE LinE anD
LOaD TErMinaLS WHEn THE EQUiPMEnT iS in OPEraTiOn. FaiLUrE TO
DO SO COULD rESULT in PErSOnaL inJUrY Or DEaTH.
4.2 Mounting Location
Choose a location that offers a flat, rigid mounting surface capable
of supporting the weight of the enclosed ATS equipment. Protect
the transfer switch at all times against excessive moisture, dust,
dirt, lint, and corrosive vapours.Check to ensure there are no pipes,
wires, or other mounting hazards in the immediate mounting area
that could create a problem.
Carefully remove all packing material from the ATS enclosure at the
installation site. Even though an equipment inspection was per-
formed when the equipment was received, make another careful
inspection of the enclosure and the ATS mechanism as the packing
material is removed and the enclosure readied for mounting. Be
especially alert for distorted metal, loose wires, or damaged compo-
nents.
4.3 Overhead / Underground Service Cable Entrance
The Eaton metered, service entrance rated ATS will accomodate
either an overhead service cable entrance configuration or an under-
ground one.
Twin 2-½” hub openings on the top of the enclosure will accept a
standard Myers type hub. The assembly ships with removable hub
closure plates installed over these openings.
For underground service entrance installations the ATS comes
equipped with twin wireways. These provide proper protection of
the live service cables as they pass through to the utility cable ter-
mination point of the enclosure. Bracketing and fasteners located
within meter socket section prevent removal of the wireways with-
out first removing the metering section cover. See Figure 6.
In the case of an overhead service entrance installation the wire-
ways may be removed to provide additional working space in the
enclosure. Once removed the supplied blanking plates must be
installed to cover the access holes into the metering section. In an
underground service entrance installation the unused wireway may
be removed provided the supplied blanking plate is installed to cover
the access hole.
For an underground service installation the wireway being used is
removed only to enable the installation of the conduit adapter for the
service cable.
nOTE: The wireway must be re-installed prior to feeding the cable through
the passage. The wireway can not be installed over cable that has been
pre-run run through the passage nor can it be removed once the cable has
been run through the wireway.
4.3.1 Removing The Underground Service Entrance Wireway
Remove the underground service entrance wireway as fol-
lows:
•
Remove the enclosure door, dead front and metering section cov-
ers;
•
Locate and remove the screw and “L” shaped bracket at the
top of the wireway that spans the metering section barrier (See
Figure 6);
•
Locate and remove the screw in the retaining tab built into the
back edge of the wireway. The tab is found in the lower section
of the enclosure just below the metering section barrier (See
Figure 7);
•
With the wireway now free to move, slide the wireway upwards
into the metering section far enough for the sealing tab on the
bottom edge of the wireway to clear the slot it was sitting in (See
Figure 8);
•
Rotate the bottom end of the wireway inwards towards the cen-
ter of the enclosure. At the same begin lifting the bottom end of
the wireway away from the back of the enclosure until it will clear
the enclosure’s bottom edge (See Figure 8). Pull downwards and
remove.
Figure 5. Location of wireway “L” retaining brackets.
Retaining
Bracket
