Control lines for mechanical pumps/dispensers, Grounding, Reset motor feed – Gasboy 1000 Series Fuel Management System Installation User Manual

Page 25: Grounding reset motor feed, Figure 4-2, To determine the proper

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MDE-4344A Series 1000 Fuel Management System Installation Manual · November 2008

Page 21

Control Lines for Mechanical Pumps/Dispensers

System and Pump/Dispenser Wiring

Figure 4-2: Wire Size

Control Lines for Mechanical Pumps/Dispensers

Descriptions of the control lines are provided to familiarize the installer with the control inputs
and outputs that are used to control a mechanical pump/dispenser. Reading these descriptions
will give the installer a better working knowledge of the system and aid in planning the site
wiring.

Grounding

To ensure proper operation of the equipment and provide the necessary safety factors, this unit
must be grounded. A ground wire (preferably green) must be connected between the ground
wire of the system and the main electrical service panel. One (1) earth ground connection is
required per unit. A ground rod must be installed at the main electrical panel in accordance
with the National Electrical Code. This ground rod is to be a solid, corrosion-resistant
conductor. It should be properly tied into the ground bus strip of the panel. We recommend the
neutral and ground bus strips be bonded together (unless prohibited by local codes).

Reset Motor Feed

This is a 115 VAC input which is supplied through the pump handle switch to activate the
reset motor. This line should be switched through the Series 1000 system and should only be
on when the pump/dispenser is authorized or in manual mode. Without power supplied to this
line, the pump/dispenser will not reset when the pump handle is turned on. Two feed lines are
provided for twins. This feed is also connected to the input of one of the internal switches of
the electric reset. When the reset finishes its cycle, the 115 VAC input to the switch will be
passed through as an output causing the solenoid valve (optional in some models) to open and
the reset complete line to indicate 115 VAC.

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