Gasboy 1000 Series Fuel Management System Installation - Manual (Page 28)

System and Pump/Dispenser Wiring Control Lines for Gasboy 9800 or 9820 Electronic Pumps/Dispensers
Page 24 MDE-4344A Series 1000 Fuel Management System Installation Manual · November 2008
External Valve
The External Valve line is used to directly power an anti-siphon valve mounted on top of an
aboveground tank. The valve must operate at the same voltage as the pump motor and the
current draw must not exceed one Amp, or the valve must be switched through an external
relay controlled by the External Valve line. Do not connect two or more External Valve lines
together. If more than one pump is drawing from the tank, separate anti-siphon valves must be
installed, or each External Valve line must operate an external relay which then operates the
valve.
Control/Pump Motor Feed
The Control/Pump Motor Feed is a 115 VAC (230 VAC International) input which is required
to power and authorize the control line. This line is used to provide authorization for the
dispensing unit (when enabled through the DIP switches). A resistor assembly must be
installed between the Control Feed line and Feed Neutral to prevent false triggering of the
authorization input. The resistor assembly is 8.2K OHM, 10 Watt (Part Number C05818) for
115/230 VAC domestic and 30K OHM, 10 Watt (Part Number C06683) for 230 VAC
international wiring. Two Control/Pump Motor Feed lines are provided for twins.
The Control/Pump Motor Feed line is used to power the slow flow and fast flow valves (when
installed). The power used to control the pump is also provided by this line. It is possible to
combine the control lines for twins and supply them from one breaker; however, the gauge of
the wire needs to be adjusted to handle the load of two motors. The Reset Complete signal
used for external monitoring of the pump also originates from the Control/Pump Motor Feed
line.
Neutral Feed
The Neutral Feed is the AC current return line back to the breaker panel for all attached
devices (pump motor, solenoid valves).
Control/Submersible Feed (Control/Subm Feed)
The Control/Subm Feed is a 115 VAC (230 VAC International) input which is required to
power and authorize the control line. This line is used to provide authorization for the
dispensing unit (when enabled through the DIP switches). If this line is controlled by a fuel
management system using solid state relays, a resistor assembly must be installed between the
Control Feed line and Feed Neutral to prevent false triggering of the authorization input. The
resistor assembly is 8.2K OHM, 10 Watt (Part Number C05818) for 115/230 VAC domestic
and 30K OHM, 10 Watt (Part Number C06683) for 230 VAC international wiring. The
TopKAT
™ and CFN systems require the resistor assembly only when they are used with the
9800 pump/dispenser operating in standalone mode. Operating the 9800 in standalone mode
with a TopKAT requires the TopKAT mechanical interface option; with a CFN system,
requires an optional mechanical pump control unit. This line also supplies the power which is
switched to the slow flow and fast flow valves along with the switch detect signal. Two lines
are provided for twins.