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o Manual Reset Button. The VFC shall be equipped with a manual reset button, which is pressed upon <br />correction of any of the above faults. <br />o Red Light Indicator. The front cover of the VFC shall be clearly marked to define the abnormal conditions <br />indicated by the flashing red light. <br />o Green Light Indicator. The front cover of the VFC shall have a constant green light illuminated to indicate <br />power is on. The green light flashing shall indicate that the motor is running. <br />o The controller shall have the capability to be configured as: <br />Stand Alone <br />This configuration will allow the VFC to operate independently as a Stand Alone unit. <br />Alternating Circuit (AC) <br />This configuration will allow the VFC to continually alternate up to 16 lead pumps upon each start cycle in <br />manifolded pumping systems. <br />Master/Slave <br />This configuration will allow the VFC to start up to 16 manifolded pumps on demand. Master/Slave <br />systems shall have one VFC designated as the "Master' and all others as "Slave(s)". The Master shall <br />automatically start the Slave pump(s) in the event that it can no longer support the pre -determined flow <br />rate or an abnormal condition has occurred. <br />MasterlSlave and AC <br />This configuration allows the VFC to simultaneously operate as a Master/Slave & AC. <br />• One VFC is required for each pump. <br />• The VFC shall operate on 200-250 volt, single or 3-phase, 50 or 60 Hz. <br />• The VFC shall have an RS 485 communications port for connection compatibility to electronic line leak <br />detection/point of sale units manufactured by others, or other PC monitoring means. <br />• FE Petro Inc. shall manufacture the pump and VFC. <br />INSTALLATION AND MAINTENANCE <br />• The pump shall have a three -wire field connection and an easy access ground wire terminal, and shall incorporate <br />a wire seal plug which will accommodate all four wires. <br />• The pump shall incorporate a port for line pressure testing that shall be sealed with a 1/4" NPT pipe plug. <br />• The head of the pump shall contain a manual pressure relief screw to bleed static line pressure to zero through a <br />flow path into the tank. This feature is required to avoid product escaping into the environment when opening the <br />piping system for service when the piping is pressurized. <br />• The pump unit shall have a fully extractable head in order to permit removal of the pump motor assembly without <br />disturbing the discharge piping, product in the pipelines downstream of the check valve, syphoning system with <br />syphon check valve installed, or the electrical wiring. <br />• During the removal of the extractable portion of the pump, product contained in the discharge manifold of the pump <br />shall drain automatically into the storage tank. <br />• The product in the pipelines shall be held in place by a line check valve that shall have a minimum sealing force of <br />170 lbs. (77 kgs) when the pump is not running and a minimum 30 psi of pressure in the pipeline. <br />• The line check valve shall be independent of the removable head and shall be easily accessible. <br />OPERATION <br />• The pump shall have an air/vapor elimination system that returns air or vapors to the underground storage tank <br />through a tube discharging near the top of the pump motor assembly. <br />• The pump unit shall contain a built-in expansion relief valve that relieves pressure at or above pumping pressure <br />but below 50 psi (345 kpa) as standard. Other pressure relief settings shall be available. <br />• The pump motor shall utilize the product being pumped for lubrication of the motor bearings and for cooling the <br />stator, and this fluid shall discharge into the underground storage tank at the top of the motor. <br />• The pump shall have syphon capability built into the pump. <br />• The pump head shall have a 2" NPT threaded opening for the installation of mechanical line leak detectors or <br />pressure transducers used in certain electrical line leak detectors. <br />STP002 Page 2 of 2 06/03/2002 <br />