Electric Fire Pump Controllers

Hubbell Industrial Controls, Inc.

Specifications for LXi 2800 Controllers * Wye-Delta Closed Transition Starting With Transfer Switch * July 2002

The fire pump controller shall be factory assembled, wired, and tested as a unit assembly, shall conform to the requirements of the latest editions of NFPA-20 and NFPA-70, and shall be Listed/Approved by and bear the label of UL/FM. The controller shall be Hubbell- Lexington LXi 2800 equipped with LXi logic.

The controller shall be of the combined manual/automatic type and be furnished in a floor mounted drip-proof steel Type 2 enclosure with lifting eyes. The enclosure shall be red with a non-glare surface. The controller shall be for wye-delta closed transition starting and designed, tested, and marked for the rated horsepower and 3-phase voltage and frequency in a 40 degree C. ambient.

All electrical components shall be accessible from the front for maintenance and service. No components or component wiring shall be permitted on the door of the enclosure. The controller shall have a common operating handle for both the line isolating switch and the controller circuit breaker mounted in the enclosure flange. The minimum withstand rating for the fire pump controller shall be 150,000 amps RMS symmetrical at 200-600volts. The unit shall be Listed/Approved with UL/FM as “Suitable For Use As Service Equipment”.

The controller shall have separate and independent pressure settings with minimum run timing capable of a setting of 10 minutes. Settings of the pressures shall be established at the time of the field acceptance test. Provisions shall be included to allow manual or automatic shut-down in the field.

The controller shall have two sets of Form “C” contacts for Pump Running, Phase Reversal, Power/Phase Failure, and one set of Form “C” contacts for Trouble. The Trouble contacts shall be activated by the following conditions: Invalid Configuration Memory, Emergency Manual Start, Pump Running, Phase Failure, Phase Reversal, Overload, Locked Rotor, Fail-to-Start, and Lockout.

The controller shall be equipped with LXi intelligent fire pump control system logic. All firmware shall be non-volatile flash based CPLD ( complex-programmable logic device). The boot-up time for the logic shall be 3 seconds or less. Controllers that do not boot-up and allow the pump to be started in 3 seconds or less are not acceptable. An RS232 serial port shall be supplied for downloading event history to a PC for analysis and printing.

The digital pressure readings and settings shall be displayed on the LXi LCD mounted on the enclosure flange. The LCD screen shall be 4 x 20 (4 lines of 20 characters) per screen, and the screens may be scrolled to give a total of 320 characters. The real time display shall give simultaneous 3-phase digital amps and volts for the pump power, and digital display for the system pressure. Controllers that do not simultaneously display digital 3-phase amps, line-to-line volt readings, and system pressure, are not acceptable.

The event alarm caches shall be compartmentalized, and no compartment shall over-ride any other compartment. The compartments allow for analysis of four types of information events without having to look through all events including those not related to a problem. Events shall be shown with Date and Time for each event occurrence:

1.Events that have occurred during a pump idle period

2.Events that occurred during the last start period

3.Events that occurred during the last run period

4.Events that occurred during the last stop period.

The LED displays shall be mounted on the enclosure flange and have an LED for the following, with provisions for three spare LED’s to be available and programmable for other options or event displays.

Power Available	Fail to Start	Lockout On	Low Suction
Phase Reversal	Run Timer On	Pump Start Delay On	Shorted SCR
Pump Running	Locked Rotor	Overload	Overtemp SCR
Pressure Switch Start	Local Manual Start	Remote Start	Emergency Manual Start
Local Manual Stop	Start Timer/Accelerate

The LED displays shall be mounted on the enclosure flange and have an LED for the following:

Programming of the LXi logic shall be from the touch pad mounted on the enclosure flange. Programming shall be password protected so that only authorized personnel can change the logic functions. The fire pump controller shall be Model LXi 2800 equipped with LXi Logic as manufactured by Hubbell Industrial Controls, Inc.

LXi 2800 specifications

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