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for the speed to change. Note: Some dispenser configurations may only have one side of the dispenser configured for vapor recovery. For these dispensers, verify that the VP1000 does not change speed if the other side is authorized to dispense a fuel other than gasoline. • To test the tightness of the vapor plumbing installed on the suction side of the system requires a 0-100"water column gauge. Connect the gauge into the 1/4"test port of the reducing tee. For the location of the test port, reference the dispenser views in Section 10. Continue by following and completing the START-UP/ NEW INSTALLATION/WARRANTY/ANNUAL TESTING FORM. 8 Troubleshooting the VP1OOO • Use extreme care and caution when performing the tests listed below. If 120 VAC is accidentally applied to the fault or DC terminals, the module will be destroyed. • With power applied to the dispenser, but no products authorized, there should be 120 VAC between neutral and 120 VAC on the module terminal strip. • As above, with any product authorized, there should be single speed power applied to the VP1000. Verify this by checking for 2-3 VDC from OUTPUT 1 (RED WIRE)to FAULT COMMON (ORANGE WIRE), (or from OUTPUT 2 TO FAULT COMMON) also; one GREEN LED should be illuminated. With a second product authorized on the opposite side of the dispenser i.e. one product on each side, the motor should operate at higher speed and there should be 2-3 VDC on both output 1 and 2 (to fault common) and both GREEN LED's should be illuminated. • With the pump running, a fault can be simulated by shorting, with a jumper wire, the "FAULT INPUT" (purple wire) to FAULT COMMON (orange). This should cause the motor to shut off, the solenoid valves to lose power and the dispenser to shut down. Also, as long as the short is maintained, the red LED will be illuminated. Removing the short will not automatically reset the module. To reset the module, remove the short, remove power to the dispenser for twenty seconds and restore power. The module should now be reset and the red LED extinguished. This can also be accomplished by using the power reset (PWR RESET) on the module. • If diagnosing a problem where the LED is already illuminated, a steady light indicates a low current condition, therefore expect a vane or rotor problem. If the LED is blinking, that indicates a high current condition and one would expect to find a jammed rotor or vapor line flooded with product. See Start-up/ New Installation/Warranty/ Annual Testing Form. • The electronics of the motor will make three attempts to have a successful start of the motor. If it detects a problem, on the fourth unsuccessful start, it will short the fault line to signal minus (DC-)and shut down the electronics. MC100 Interface Module i r J A esn ID GARB Approved IBM 8-Wayne Global Century,Select Reliance Series-Executive Orders VR-201 and VR-202