Specifications

5.14 PHASE MONITOR

The incoming power and each motor shall be protected by a phase loss/low voltage system dropout relay

to de-energize the pump station control circuit or motor contactor if either a phase failure, phase reversal

or low voltage condition occurs. If, after attempted automatic re-starts the phase failure/low voltage alarm

condition remains, the alarm must be manually reset. Individual motor overloads will also act as phase

monitors for each motor.

5.15 CORROSION INHIBITING MODULES

Corrosion inhibiting modules shall be installed in all electrical enclosures in accordance with the

manufacture's recommendations.

SECTION 6: SKID WIRING

Skid wiring shall conform to National Electrical Code Standards. All wiring from control panels to motors

shall be in metal reinforced, water tight, flexible conduit with copper conductors rated not less than 600

volts and of proper size to carry the full load amperage of the motors without exceeding 70% capacity of

the conductors. A grounding cable sized to National Electrical Code requirements shall be included in the

flexible conduit. There shall be no splices between the motor starters and the motor connection boxes.

Wiring to flow sensors and pressure transducer shall be multi-conductor, shielded cable suitable for Class

II low voltage controls. Wiring to motor operated valves shall be in flexible conduit with TFFN #18 gauge

copper conductors rated not less than 600 volt.

SECTION 7: CONSTRUCTION

Construction shall be of modular form utilizing a steel base structurally adequate to support pumps, piping,

tanks, and electrical equipment as a single integral assembly, a lockable, vented enclosure and cover. All

nuts, bolts washers, and fasteners shall be zinc or cadmium plated for corrosion resistance.

SECTION: 8 ENCLOSURE & FAN

8.1 ENCLOSURE

Construction shall include a weather resistant, 14 gauge, all metal enclosure with welded lockable lid

guides on top and bottom. The front side of the enclosure shall have oversized cooling vents and be easily

removable for servicing. The enclosure is to be supplied with twin internally mounted, heavy duty gas filled

lift struts to keep the access door open. All components are to be accessible from top and front sides with

the lid completely open. Enclosure is to be suitable for mounting to the pump station base and shall

include openings for suction and discharge piping.

Stainless steel or marine grade aluminum enclosure is available but must be called for in the technical

specifications.

8.2 EXHAUST FAN

For the purpose of cooling the pump motor, switchgear and control logic, an exhaust fan shall be located

inside the pump enclosure, mounted to the enclosure. The exhaust fan shall be activated upon pump start

and shall run until the pump stops. The fan shall be black die-cast aluminum construction with UL94V-0

rated polycarbonate propeller and rated for not less than 240 CFM. Fan motor shall be permanent split

capacitor type with stainless steel ball bearings, class B insulation and automatic thermal protection.