Gasboy TopKAT Fuel Management System Installation - Manual (Page 53)

MDE-4319E TopKAT™ Fuel Management System Installation Manual · August 2008 Page 47
Control Lines for Gasboy 9800 or 9820 Electronic Pumps/Dispensers Mechanical Interface Option
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 8.2 kilo-ohm, 10 Watt (part number C05818) for
115/230 VAC domestic and 30 kilo-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.
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 1 A, 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.
Neutral Feed
The Neutral Feed is the AC current return line 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). 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 8.2 kilo-ohm, 10 Watt (part number C05818) for
115/230 VAC domestic and 30 kilo-ohm, 10 Watt (part number C06683) for 230 VAC
International wiring. This line also supplies the power which is switched to the slow flow and
fast flow valves along with the Reset Complete signal. Two lines are provided for twins.
Units with Standard Submersible Drive (Subm Drive)
Power for the Subm Drive line originates from this input. The submersible starter relay line, in
standard dispensers, is not capable of directly powering a submersible pump. A starter relay
must be used. The control lines for twin dispensers can be combined together and powered by
one breaker if individual control of each side is not desired. In a site configuration using
multiple dispensers, the power for the control lines of up to eight hose outlets (eight singles or
four twins) can be supplied from one breaker.