GILBARCO VEEDER-ROOT Encore 300 Series, Руководство по установке

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MDE-3985L Encore® Installation Manual · May 2006 Page 71
Reference Information
Conduit
Gilbarco recommends that spare conduit be run for future high speed communications. See
section
“High Speed Communications Wiring” on page 73 for details.
• Use minimum 1-inch conduit for all Encore and Eclipse pumps/dispensers except use 3/4
inch for Encore Ultra-Hi to connect wires to the pump/dispenser. Infoscreen
®
and two-
wire data wires can share this conduit (See model-specific wiring diagrams).
• Use separate 1-inch conduit for eCRIND or intercom wiring. This is required for higher
data rate TCP/IP communication.
• Run all power and light wires in threaded, rigid metal conduit or in a rigid non-metallic
conduit. Conduit must conform to national and local electrical codes. If nonmetallic
conduit is used, it must be at least two feet underground. The last two feet of the
underground run to the junction box must be rigid metal conduit or threaded steel
intermediate metal conduit.
• Never share conduit or wire troughs with other manufacturers’ equipment (that is, speaker
wires, and so on).
Note: The same conduit may be used for routing power to the pump/dispenser and the two-
wire data loop (Class 1 circuit). The two-wire data loop is a Class 1 circuit.
• Metal conduit is not sufficient to provide an equipment ground. A separate ground wire
must be used.
• Knock-out boxes or flexible conduit are not permitted for installation.
Note: Extra junction boxes added to the pump/dispenser must be listed Class 1, Div. 1, Group
C and D explosion-proof.
• All electrical fittings must be listed for Class 1, Group C and D hazardous locations as
required by NFPA 30A and NFPA 70.
• A seal-off ‘Y’ fitting (example: Killark Type EY) must be installed on all units as a first
connection where conduit leaves the ground.
Wiring
For high speed communications information, go to “High Speed Communications Wiring” on
page 73 .
• All pumps/dispensers must be wired according to NFPA 30A, NFPA 70 and applicable
national, state, and local codes/ regulations.
• All circuits must be wired N.E.C. Class 1 except speaker (intercom) circuit which must be
N.E.C. Class 2. Speaker (intercom) circuit requires a separate 1 inch conduit.
• Only stranded gas and oil resistant copper wire rated for 300 volts (up to 240VAC source)
and 80°C may be used.
• In the main conduit, for communications only twisted-pair, two wire data pairs may be
used.
• All dispensers must be wired on the same phase.
Note: If Gilbarco isolation relay box is installed, dispensers are not required to be on the same
phase.
• Only listed wire nuts may be used for connections. Tape is not permitted.
• Seal-off ‘Y’ fitting(s) must be potted after all wires are run and tested to termination
points.