Dover Wayne Select S1 User Manual

16 Dover Fueling Solutions W2940305 Rev 07 8/2019
3.3 Electrical Wiring
3.3.1 General
 DFS recommends employing a qualified licensed electrician for all wiring.
 A primary requirement in dispenser installation wiring is to provide a means for
disconnecting all power connections, including the neutral, as well as the communication
lines to the dispensers for a safe shutdown and servicing of the units. All wiring to the
dispenser must be broken for the Emergency Electrical Disconnect.
 A hazardous liquid is being handled, so it is extremely important to ensure that all wiring
and conduit are in accordance with all local, state and federal regulations, including, but
not limited to, the National Electrical Code (NFPA 70), NFPA 30, and NFPA 30A.
NOTE: NFPA 70 requires that all electrical connections to the dispenser be made with
threaded, rigid conduit and properly sealed conductors. All dispensers and electrical
connection boxes must be grounded per NFPA 70.
3.3.2 Electrical Termination Descriptions - All Dispensers
The chart to the right describes the
standard electrical inputs and outputs
utilized in the Wayne Select S1 Series
and can provide assistance in
interpreting the Wiring Diagrams in
Appendix B. These connections are
found on the standard terminal block
located in the head of the dispenser.
3.3.2.1 Control Power (Hot)
The control power (hot) is a 120VAC [international (int’l) - 240VAC] input for supplying power
to the electronic register. The control power must have a dedicated breaker and must remain
on all the time. For sites with multiple dispensers, if it is not practical to use separate
breakers for each dispenser, the number of dispensers that can be included on one breaker
is determined by analyzing the power requirements of each dispenser to determine the total
load required for the group of dispensers. The breaker and wire must be sized accordingly
for that load and the length of the wire run.
NOTE: When the dispenser is connected to a fuel control and/or tank monitoring system, they
should be powered from the same circuit breaker panel so that they share a common
neutral.
3.3.2.2 Control Power (Neutral)
The control power (neutral) is an AC return line from the electronic register to the breaker
panel.
3.3.2.3 Ground
A good ground ensures proper operation of the equipment and provides the necessary safety
factors. A ground wire must be connected between the unit’s ground connection on the
terminal strip and the main electrical service panel. One (1) earth ground connection is
required per unit. Make sure that a ground rod is properly installed and wired to the ground
bus strip of the main electrical service panel in accordance with the National Electrical Code.
Do not rely on electrical conduits as the grounding connection.
TB# Signal Function
1 AC Hot Control Power (Hot)
2 Pump Hot In Pump Direct Drive Relay (Optional)
3 Subm Subm Relay Control X
4 Pump Hot Out Pump Direct Drive Relay (Optional)
5N/A
6N/A
7 AC Neut AC Neutral for electronics
8 Gnd Ground for dispenser
9 Current Loop + Dispenser comm +
10 Current Loop - Dispenser comm -
11 CAT + Payment terminal +
12 CAT - Payment terminal -

Dover Wayne Select S1 Specifications

General

Brand	Dover
Model	Wayne Select S1
Category	Dispenser
Language	English