• The controller shall have a constant green light illuminated on front cover of enclosure to indicate power is on. A green light flashing shall indicate the motor is running.
• The controller shall have an RS 485 communications port for connection compatibility to electronic line leak detection / point of sale units manufactured by others, or other PC monitoring means.
• Dual Manifold Master – Slave Operation
  The controller shall have the capability to start a second variable speed turbine on demand that is manifolded to the same discharge line. On dual manifold systems, one turbine shall be operated as the "Master." The master will run until such time that it can no longer support the pre-determined flow rate and shall automatically start the second turbine (slave).
• The variable frequency controller shall operate on 200 – 250 volt, single or 3 phase, 50 or 60 HZ.
• The pump and controller shall be manufactured by FE Petro, Inc., McFarland, WI.

INSTALLATION AND MAINTENANCE

• The pump shall have a three-wire field connection and an easy access ground wire terminal, and shall incorporate a wire seal plug which will accommodate three wires, plus ground.
• The pump shall incorporate a port for line pressure testing that shall be sealed with a 1/4" NPT pipe plug.
• The pump unit shall have a fully extractable head in order to permit removal of the pump motor assembly without disturbing the discharge piping or the electrical wiring.
• The product in the pipelines shall be held in place by a line check valve that shall have a minimum sealing force of 170 lbs. (77 kgs.) when the pump is not running and a minimum 30 psi of pressure in the pipeline.
• The line check valve shall be independent of the removable head and shall be easily accessible.
• The removal of the extractable portion of the pump shall not disturb product in the pipelines downstream of the check valve.
• During the removal of the extractable portion of the pump, product contained in the discharge manifold of the pump shall drain automatically into the storage tank.
• The head of the pump shall contain a manual pressure relief screw to bleed static line pressure to zero through a flow path into the tank. This feature is required to avoid product escaping into the environment from opening the piping system for service when the piping is pressurized.
• The pump shall be available with an optional variable telescoping length feature such that the pump length can be field adjustable from 88" (223 cm) to 150" (380 cm) in length without disturbing the UL label. Pumps required shorter or longer than this range shall be accommodated with a shorter or longer variable length model. This variable length feature shall be standard on all units with model designations beginning with "IST".

OPERATION

• The pump shall have an air / vapor elimination system that returns air or vapors to the underground storage tank through a tube discharging near the top of the pump motor assembly.
• The pump unit shall contain a built-in expansion relief value that relieves pressure above pumping pressure but below 50 psi (345 kpa).
• The pump motor shall utilize the product being pumped for lubrication of the motor bearings and for cooling the stator, and this fluid shall discharge into the underground storage tank at the top of the motor.
• The pump shall have syphon capability built into the pump.
• The pump head have a 2" NPT threaded opening for the installation of mechanical line leak detectors or pressure used in certain electrical line leak detectors.