Bennett 3000 Spec 300 Series Instruction Manual Service & Troubleshooting
60
PROPORTIONAL VALVE CONTROL (STANDARD FLOW)
The standard flow 3000 series dispenser uses a 1” (2-wire) proportional valve. The proportional valves are +24-volt valves that contains a
plunger, spring, O-rings, and diaphragm. The way the proportional valves handle a preset or a prepay sale is to modulate the proportional
valves for the two gas products to slowly close off the valve at the end of a sale.
COMPONENT DESCRIPTION
A 2-wire connection connects to J10 (side 1) and/or J7 (side 2) of the 719 CPU for valve control. This valve is also the Side 1 valve for the
second product when the dispenser is configured as 2 side and 2 grades (e.g. diesel + DEF). Note: Always make sure that the correct valve
is connected to this harness. The harness connectors are clearly marked.
Pin Description
1 (black) Signal (Proportional Valve Control)
2 Not Used
3 (black) +24VDC Common
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