Gasboy TopKAT Fuel Management System Installation - Manual (Page 20)

General Installation Conduit Layout/Installation Specifications
Page 14 MDE-4319E TopKAT™ Fuel Management System Installation Manual · August 2008
Conduit Layout/Installation Specifications
• Internationally and domestically: All wiring must be installed and used in accordance with
all applicable national, state, and local building/fire/electrical codes. Additionally, in the
USA, installations must comply with the National Electrical Code (NFPA 70), NFPA 30,
and the Automotive and Marine Service Station Code (NFPA 30A) codes and regulations.
Canadian installations must comply with the Canadian Electrical Code.
• All peripheral equipment connected to the RS-232 ports must be listed, have an
Electronics Industrial Association (EIA) standard RS-232 communications protocol and
not be installed over a hazardous location.
• Power for the data terminal and external modem must come from a separate circuit
breaker rated at no less than 10A.
• All conduits must be made of metal to provide the necessary shielding.
• Use the Conduit Size Chart to determine the proper conduit size.
• RS-232 communication must not exceed 100 feet. RS-232 communication wires must be
in a separate metal conduit away from AC wires.
• For communication distances exceeding 100 feet, you must use a Gasboy RS-422 Short
Haul Modem.
• It is recommended that high voltage AC power wires be installed in a separate conduit,
away from the low voltage DC signal wires. However, if AC and DC wires share the
conduit, communication wiring must use the cable specified in
“RS-422 - SHMs” on
page 22 .
• DC RS-422 communication wires can be combined in the same conduit.
• When using the master/satellite configuration, the maximum field wiring cable length
between the first and last unit must not exceed 1500 feet (455 m). It is recommended that
high voltage AC wires be installed in a separate conduit, away from the low voltage DC
signal wires. However, if AC and DC wires share the conduit, communication wiring must
use the cable specified in
“Communication Requirements” on page 19 .
Conduit Requirements
All wiring (AC and DC) connecting different components of the Gasboy FMS must be
installed in threaded, rigid, metal conduit except as noted in
“Communication Requirements”
on page 19 and “RS-422 - SHMs” on page 22 . PVC IS NOT ACCEPTABLE. Components of
the system include pumps, dispensers, submersible pumps, submersible starter relays, circuit
breaker panels, optional wall-mount PCUs and the TopKAT system. Communications
equipment signal wires must also be run in the metal conduit, except for RS-422 wiring, as
noted in
“Communication Requirements” on page 19 .
Communication equipment signal wires must also be run in metal conduits. High-voltage
(AC) and low-voltage (DC) must not be combined in a common conduit, Junction box, or wire
trough unless the cable is used as specified in
“Communication Requirements” on page 19 .
All conduits must be connected to the TopKAT pedestal through the holes and knockouts
provided by the factory. Do not make any other holes in this unit. If you must make holes at
locations other than those provided, contact Gasboy for approval.