MDE-4567D 9820K Series AST Pumps Installation and Operation Manual · January 2020
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Conduit
Wiring
Conduit
All wiring to the Gasboy Series 9820K pumping unit must be installed in threaded, rigid, metal
conduit. PVC IS NOT ACCEPTABLE. The Gasboy Warranty will not apply to any pump in which the
AC and DC wires are run in the same conduit, Junction Box (J-Box) or wireway, except as noted.
The Gasboy Warranty will not apply to any pump using PVC as conduit.
IMPORTANT INFORMATION
All wiring and conduit runs must conform with all building/fire codes, all Federal, State, and
Local codes, National Electrical Code, NFPA 70, NFPA 30, and Automotive and Marine
Service Station Code (NFPA 30A) codes and regulations. Canadian users must also comply
with the Canadian Electrical Code.
Metallic conduit is not considered an adequate equipment ground. Separate ground wiring
must be used.
Use the charts in
as a guideline for determining the
necessary conduit sizes for wiring of the Gasboy Series 9820K pumping unit. When actually
determining the size of conduit, it may be necessary to increase the size of conduit because of
a long run or large amount of bends. The installer should determine the orientation of the wire
runs according to the layout of the components at the site and the applicable Gasboy wiring
diagrams.
Model 9820K
It is recommended that high voltage AC power wires to the register assembly (not between the
register and pumping unit) be installed in a separate conduit from the DC pulser output wires
(when used) and must not be run in any sort of common conduit or trough.
However, if AC and DC power wires share the conduit, the DC wiring must consist of UL-
listed cable with the specifications described in
on
. Only AC wires for the
system and pumps can be installed in this conduit for this application.
When the Gasboy Series 9820K pumps are being installed with a fuel management system
other than a Gasboy System, see the manufacturer installation manual for their specific
conduit requirements.
Wiring between the 9820K register and pumping unit is installed in a single conduit. This
includes the wiring for the AC control of the pumping unit and the internal pulser. A special
cable, as described in
on
must be used for the connection between the
pulser inside the pumping unit to the register assembly.