Gasboy 1000 Series Fuel Management System Installation - Manual (Page 29)

MDE-4344A Series 1000 Fuel Management System Installation Manual · November 2008 Page 25
Control Lines for Gasboy 9800 or 9820 Electronic Pumps/Dispensers System and Pump/Dispenser Wiring
If the 9800 is to be controlled through authorization of this line, special care must be taken in
the wiring of the submersible control lines when a common submersible is used for more than
one hose outlet. Refer to
“Submersible Starter Drive (Subm Starter Drive)” on page 25 for
more information.
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. 9800’s equipped with the optional
relays for direct submersible pump drive can be connected directly to submersible pumps up to
3/4 HP at 115/230 VAC. This line is limited to 3/4 HP because of the control circuit in the
Series 1000. 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.
Submersible Starter Drive (Subm Starter Drive)
The Subm Starter Drive is a 115 VAC (230 VAC International) output used to control a
submersible starter relay. Two lines are provided for twins. This line is capable of supplying
300mA of AC current to control the coil of the submersible motor contactor (starter relay).
This is sufficient for directly connecting to the popular models, but if in doubt, check the
contactor (relay) manufacturer’s data sheet for the sealed VA rating. Divide the sealed VA by
the coil voltage to determine the current. This line must not be connected directly to the
submersible pump, shorted to any conduit or chassis metal, or mis-wired, or the CPU PC board
will be instantly damaged. This line must be left capped when not in use.
When multiple dispensers are used to control a common submersible starter relay or pump, and
the 9800 is controlled (authorized) through the Control/Pump Motor Feed line (as in the case of
some fuel management systems), it is important that the lines from the 9800 to the submersible
equipment be isolated from each other. This can be accomplished by running the submersible
control lines through a secondary set of relay contacts in the fuel management system. If a
secondary set of contacts is not available, external control relays must be used between the 9800
and the submersible starter relay or pump. Another option is to provide a separate submersible
starter relay for each hose outlet. In no case can the submersible drive lines from the 9800 be tied
together.
IMPORTANT INFORMATION