MDE-4567D 9820K Series AST Pumps Installation and Operation Manual · January 2020
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Slow Flow (Reset Complete/Switch Detect)
Control Lines
Slow Flow (Reset Complete/Switch Detect)
The Slow Flow line is a 115 VAC (230 VAC International) output which is used to control the
Slow Flow stage of the solenoid valve. This line also indicates when the reset process is
complete and the unit is ready to dispense the product. This line can be used in conjunction
with a fuel management system (for all Gasboy Controllers using Pulse-Output mode or any
non-Gasboy Fuel Management systems).
This line is capable of supplying 300 mA AC maximum (170 mA maximum if already
connected to the valve).
This line must not be shorted to any conduit or chassis metal, incorrectly wired, or be 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
Fast Flow
The Fast Flow line is a 115 VAC (230 VAC International) output which is used to control the
Fast Flow stage of the solenoid valve.
This line is capable of supplying 300 mA AC maximum (170 mA maximum if already
connected to the valve).
This line must not be shorted to any conduit or chassis metal, incorrectly wired, or be 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
Phase 2 Feed
The Phase 2 Feed is a hot feed, which is the opposite phase of the Pump Motor Feed. This line
and the Pump Motor Feed are used for 230 VAC single phase motor applications. 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.