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processor and whether or not the processor is operating properly. The panel <br /> includes a POWER switch with an integral POWER (green) lamp, a <br /> PROCESSING (green) lamp, and an OVERPRESSURE (red) lamp. <br /> During normal operation, the POWER switch is on, the POWER lamp is on, <br /> the PROCESSING lamp is lit intermittently, and the OVERPRESSURE lamp <br /> is extinguished. The PROCESSING lamp is wired so it will light when the <br /> main valve is open and thermal oxidation is occurring. <br /> The OVERPRESSURE lamp is wired to the vacuum sensor/switch and a <br /> timing module. If the UST pressure is positive for at least 1 hour, then the <br /> vacuum sensor/switch will be closed and the timing module will light the <br /> OVERPRESSURE lamp. The OVERPRESSURE lamp indicates a leak in the <br /> vapor recovery system or possibly a malfunction of the Hirt VCS 100 <br /> processor. The OVERPRESSURE lamp will extinguish after the leaks or <br /> processor malfunction is corrected and the processor has restored the UST <br /> ullage to a nominal —0.40" w.c. <br /> 4.4 Processor Dimensions, Weight, and Specifications <br /> 38" <br /> MODEL: VCS 100 <br /> SERVICE: Outdoor, non hazardous area <br /> ELECTRICAL: 120 VAC, 3 Ampere, intermittent <br /> VAPOR PIPE CONNECTION: 3/4@ NPT <br /> WEIGHT: 80 lbs. <br /> OVERALL DIMENSIONS: 18" wide X 18" deep x 38" high (without legs) <br /> Page 14-3 <br /> ARB Approved IOM-14—Hirt VCS 100 Processor Installation Manual—Executive Order VR-205-B <br />