Gasboy 9120K Series Installation - Manual (Page 23)

MDE-4567C 9120K and 9820K Series AST Pumps Installation and Operation Manual · September 2008 Page 19
Wiring Diagrams Wiring
Wiring Notes for Model 9820K – Domestic ( Figure 3-3 on page 18 )
Notes:1) 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.
2) Pump Motor can be wired as 230 VAC to reduce current draw (see Breakaway View
of 230 VAC Pump Motor). All other wiring should remain the same except for the
addition of the L2 (requires 230 VAC breaker for control). If connected to equipment
requiring control of the authorization input, the Phase 2 Feed should be switched
through a separate relay to prevent false triggering of the authorization signal.
3) If the Pump Motor 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
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.
4) Slow Flow and Fast Flow lines are typically used when connecting to an optional
valve. Each of these lines is capable of supplying 300 mA AC maximum (170 mA AC
maximum if already connected to the optional valve).
These lines must not be shorted to any conduit or chassis metal, incorrectly wired, or
connected to any equipment requiring more than stated maximum allowable current. If
these restrictions are not followed, damage to the CPU PCB will occur.
!
CAUTION
5) Use the wire size chart in “Wire Size” on page 11 to determine the wire size for the
control wiring.