Power requirements, Ac power to the topkat system, Topkat peripheral equipment – Gasboy TopKAT Fuel Management System Installation User Manual

Page 22: Grounding

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General Installation

Power Requirements

Page 16

MDE-4319E TopKAT™ Fuel Management System Installation Manual · August 2008

Power Requirements

AC Power to the TopKAT System

When mounted to a 9800 or ASTRA, AC power for the TopKAT system is supplied from the
same power source used to power the 9800 or ASTRA Micro Feed. A wiring cable for AC
power from the 9800 or ASTRA to the TopKAT is supplied with the TopKAT. Refer to

“ASTRA to TopKAT Cabling”

on

page 27

for more information.

When mounted on a pedestal, AC power for the TopKAT system must come from a separate,
dedicated circuit breaker. No other equipment, including the system's pumps or dispensers,
may be powered from this breaker.

When the TopKAT system is pedestal-mounted with internal PCUs, AC power for the
TopKAT system must be supplied from the same power source used to power the PCUs. A
wiring cable for AC power from the TopKAT system to the PCUs is supplied. When the
TopKAT system is pedestal-mounted but is being used with wall-mounted PCUs, the AC
power for the TopKAT system and PCUs must come from a separate, dedicated circuit
breaker. No other equipment, including the system's pumps and dispensers may be powered
from this breaker.

TopKAT Peripheral Equipment

When used with a 9800 or ASTRA, AC power for the data terminal or external modem must
come from a separate, dedicated circuit breaker. No other equipment, including the system's
pump or remote dispenser control may be powered from this breaker. However, for 9800 and
ASTRA applications, it is acceptable to power the data terminal or external modem from the
breaker that supplies power to the electronic register (Micro Feed on 9800 or ASTRA). This
breaker is the same one that supplies power to the TopKAT system. Whenever possible, one
breaker should be used to supply the Micro Feed and the data terminal or external modem.
However, it is acceptable to supply power to both from multiple breakers within the same
breaker panel and the same phase of power. When necessary, power for the data terminal or
modem may be supplied from a separate, dedicated breaker located in a different breaker
panel.

When used with a pedestal TopKAT system, power for a data terminal or external modem can
come from the same breaker as the TopKAT system.

The system requires 115 VAC + 10% 47-63 Hz, or optional 230 VAC + 10% 47-63 Hz of
power. The system draws a maximum of 95 Watts.

Grounding

Proper system grounding is an extremely important part of system installation. As with the AC
power, the grounds for all system components should return to the same breaker panel. This
helps you to assure a common ground throughout the system, which is necessary for protection
of the RS-485 data loop circuitry. Grounds for all system devices should be wired to the
breaker panel ground bus bar, which in turn should be grounded to a ground rod. A conduit
ground does not provide sufficient ground. It is recommended that the neutral and ground bus
bars be bonded together when it is not prohibited by local codes.

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