Gasboy 9822Q, Installation & Operation Manual

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Control Lines
MDE-4339 9820Q ASTRA Installation/Operation • July 2004 13
3. Control Lines
Purpose
This section is provided to familiarize the installer with the control inputs and outputs that are
available for the Series 9820Q. It is recommended the installer read these descriptions to obtain a
better working knowledge of the unit in order to guide him in planning the site wiring. Reference
Section 4 for a specific wiring diagram and installation notes.
The Series 9820Q may be provided for use with 230 VAC power for international applications.
The operating voltage for control lines to these units is shown in parentheses as (230 VAC Int'l).
If connecting the 9820Q to a GASBOY fuel management system, refer to the appropriate fuel
management system
Installation Manual for detailed installation information.
Ground
To ensure proper operation of the equipment and provide the necessary safety factors, a good
ground line must be provided. A ground wire (preferably green) must be connected between the
ground screw of the register and the main electrical service panel. One (1) earth ground
connection is required per unit. The ground rod is to be a solid, corrosion-resistant conductor and
must be installed at the main electrical panel in accordance with the National Electrical Code. 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).
Micro Feed
The Micro Feed is a 115 VAC (230 VAC Int'l) input required to power the microprocessor of the
register's electronics. This power must always remain on and must be on a separate breaker from
the control lines (Pump Motor Feed). In a site configuration using multiple units, the power for the
microprocessors of up to 8 units can be supplied by one breaker.
Micro Neutral
The Micro Neutral is a return line for AC current from the microprocessor of the dispensing unit to
the breaker panel.
Pump Motor Feed
The Pump Motor Feed is a 115VAC (230 VAC Int'l) input which is required to power the pump
and authorize the control line. This line is used to provide authorization for the 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 Pump Motor 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.
The 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. The Reset Complete signal used
for external monitoring of the pump originates from the Pump Motor Feed line.