MDE-4319A TopKAT Fuel Managment System Installation Manual · November 2005
Page 39
Control Lines for Gasboy 9800 or 9820 Electronic Pumps/Dispensers
Mechanical Interface Option
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 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.
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 Int’l) 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 (P/N C05818) for 115/230 VAC domestic and 30K
OHM, 10 Watt (P/N 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 8 hose outlets (8 singles or 4
twins) can be supplied from one breaker.
Units with Optional Direct Submersible Drive
Power for the Subm Drive line originates from this input. 9800s equipped with the optional
relays for direct submersible pump drive can be connected directly to submersible pumps up to
3/4 HP at 115 VAC or 1-1/2 HP at 230 VAC. The gauge of this wire should be determined
according to the size of the motor, the voltage at which the motor will be powered, and the
distance from the breaker panel to the pump.
