Gasboy 9120Q Series - Manual (Page 17)

Wiring
9120Q Compact Commercial Pumps
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March 2004 11
Conduit
All wiring to the GASBOY Series 9120Q Compact commercial Pump Unit must be installed in
threaded, rigid, metal conduit. AC power wires must be installed in a separate conduit from the
DC pulser (if used with a GASBOY fuel management system) and the AC power wires and DC
pulser wires must not be run in any sort of common conduit or trough. When the GASBOY Series
9120Q is being installed with a fuel management system other than a GASBOY System, see the
manufacturer’s installation manual for their specific conduit requirements.
All wiring and conduit runs must also conform with the National Electrical Code (NFPA 70) and
the Automotive and Marine Service Station Code (NFPA 30A). All wiring and conduit runs must
conform to local codes.
Use the charts below as a guideline to determine the proper conduit sizes for the GASBOY Series
9800A dispensing unit. When planning the orientation of the wiring runs, follow the applicable
GASBOY wiring diagram and consider the layout of the components at the site. Long runs or a
large number of bends may require you to increase conduit size over what is listed.
To determine conduit size needed, use the THHN/THWN Wire Areas table (left) to find the area
for each wire gauge. Add up all wire areas. Use the Areas of Trade Size Conduit Table (right) to
select the smallest number in the 25% fill area (based on NEC 501-1) that comes closest without
exceeding the total wire area.
Wiring Notes for 024390
1. All wiring and conduit runs must conform with all building/fire codes, all Federal, State, and Local codes, the
National Electrical Code, (NFPA 70), NFPA 30, and Automotive and Marine Service Station Code (NFPA
30A) codes and regulations.
2. Pump motors may be wired as 230 VAC to reduce current draw.
3. The brown wire (Aux AC Control Lead) is shipped capped from the factory. When used, it connects to a
solenoid valve or fuel management system. Do not connect this wire without first checking the ON voltageof
this line to ascertain compatibility with the equipment being connected.
4. Use the wire size chart listed on page 4-3 when determining the wire size for the control wiring.
5. Pulser wiring must be installed in metal conduit separate from all AC wiring.
6. Pulser wiring must be 18AWG.