Gasboy 9100Q Series - Manual (Page 25)

Wiring
12/03/03 4-3
WIRE SIZE
The table below shows the required AC wire size for suction and submersible pumps based on the
HP rating of the pump motor and the distance from the circuit breaker to the pump/remote
dispenser for both 115 and 230 volt units. Use this table as a guide for selecting the proper size
wire for the Pump Feed, Phase 2 Feed, and Return.
The table also applies to the Disp Feed, and Subm Drive of a dispenser when the submersible
pump is directly driven via the dispenser control circuitry. A starter relay must be used; however,
when the submersible pump motor is greater than 1 HP at 115 VAC or 2 HP at 230 VAC. When
using a starter relay for the pump motor, the control lines to the dispenser may be 12 AWG.
The AC wire size of the control lines of a pump (Reset Motor Feed, Pump Motor Feed, Neutral
Feed, Phase 2 Feed) or remote dispenser (Reset Motor Feed, Submersible Feed, Submersible
Drive, Neutral Feed) should be 12 AWG unless you are using a starter relay. A starter relay must
be used whenever the submersible motor is greater than 1 HP at 115/230 VAC.
If multiple units are powered from the same breaker through the same wires, you must increase
the gauge of the wires to handle the added load according to the distance from the breaker panel
and the HP rating (if applicable).
The AC wire size for the Light Feed and Light Neutral, when the lights are wired from a single
dedicated breaker, should be 14 AWG for distances up to 300 feet (91.4m) or 12 AWG for
distances over 300 feet (91.4m).
The AC wire size for the Reset Complete (Switch Detect) and Fast Flow lines should be 14 AWG
(when they are used).
The DC wire size for the Pulser lines must be 18 AWG (when they are used). Shielded cable as
described in the Pulser section allows pulser lines to be run with the AC wires.
Wire Size