Hubbell LX-1500 User Manual

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Hubbell Industrial Controls, Inc.

HUBBELL

A subsidiary of Hubbell Incorporated

50 Edwards St.

 

 

Madison, OH 44057

 

 

 

Telephone (440)

428-1161

 

FAX (440)

428-7635

Instruction Manual

Fire Pump Controller

Model LX-1500

Limited Service

Electric

Publication No. 197

April, 2000

Limited Service Fire Pump Controller

Table of Contents

 

I Introduction..................................................................................................................................

3

II Specifications and Certifications ................................................................................................

3

Specifications ................................................................................................................................

3

Certifications .................................................................................................................................

4

III Receiving, Handling, and Storage.............................................................................................

4

IV Installation .................................................................................................................................

4

V Sequence of Operation ................................................................................................................

5

VI Start Up Procedure....................................................................................................................

7

VII Maintenance .............................................................................................................................

9

Preventive Maintenance.................................................................................................................

9

Troubleshooting.............................................................................................................................

9

Coil and Contact Replacement .....................................................................................................

10

VIII Limited Service Fire Pump Controller Parts.......................................................................

11

Attachments

Typical Controller Schematic

Typical Field Connection Diagram

Notes

Refer to job drawings for options.

For combination Automatic Transfer Switch/Fire Pump Controller applications, refer to Publication No. 186 for the LX-250 Transfer Switch or Publication No. 195 for the LX-350 Transfer Switch, for details.

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Hubbell LX-1500 User Manual

Limited Service Fire Pump Controller

I Introduction

The Hubbell Limited Service Fire Pump Controller provides automatic and manual control of small electric motor driven fire pumps and booster pumps of 30 horsepower or less.

All Controller components are inside the cabinet with indicating lights and switch handles located next to the door. A pressure switch initiates automatic starting of the pump motor. The Controller monitors the power phases and voltage. The CIRCUIT BREAKER DISCONNECTING MEANS handle has a door interlock feature to prevent opening the door when the switch is closed. The Controller also has an EMERGENCY MANUAL CONTROL handle to start the fire pump manually.

CIRCUIT

BREAKER

 

EMERGENCY

DISCONNECTING

 

MANUAL

 

CONTROL

MEANS

 

 

 

Incoming

 

To

Phase

 

 

Fire Pump Motor

Line

 

 

L1 M1 T1

 

Surge

 

 

Suppressor

 

 

Control

PLM

Pressure

Panel

 

Switch

 

Control

 

 

Transformer

Figure I-1 Block diagram of LX-1500 showing one phase

II Specifications and Certifications

Specifications

Voltage

208, 240, 380, 480C

Phase Loss/Reversal Module

A-B-C phase rotation

200 Series

208–240 VAC, 60 Hz, 3 phase

300 Series

380–415 VAC, 50 Hz, 3 phase

400 Series

440–480 VAC, 60 Hz, 3 phase

Maximum Voltage

10% of highest nominal voltage

Maximum Frequency Shift

0.1 Hz

Phase Loss

18% of low voltage in one phase

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Limited Service Fire Pump Controller

 

 

 

Undervoltage Trip

15% below set point

Time Delays

Pick-up, 1.5 s, fixed

 

Drop-out, 1.5 s, fixed

Output Relays

10 A, 120 VAC

 

5 A, 240 VAC

Indication

green LED, on for A-B-C phase rotation

Surge Suppressor

650 V rating

Temperature

Operating: −4° F to 104° F (−20° C to 40° C)

 

Storage: −4° F to 182° F (−20° C to 85° C)

Certifications

The Hubbell Limited Service Electric Fire Pump Controller is built to NFPA 20 requirements. The Controller is listed by:

Underwriters Laboratory

Factory Mutual

Underwriters Laboratory Canada

New York City

Canadian Standards Association

 

III Receiving, Handling, and Storage

1.Immediately upon receipt, carefully unpack and inspect the Controller for damage that may have occurred in shipment. If damage or rough handling is evident, file a damage claim with the transportation carrier.

2.If the Controller must be stored, cover it and place in a clean, dry location. Avoid unheated locations where condensation can result in damage to the insulation or corrosion of metal parts.

IV Installation

1.Consult the motor nameplate to determine voltage, current, and horsepower rating and compare with the Controller nameplate for matching data.

2.Release the door interlock by moving the CIRCUIT BREAKER DISCONNECTING MEANS to the OFF position.

3.Inspect the control transformer’s primary connections for agreement with the line voltage of the incoming power.

4.Exercise all switches and contactors, without power, to see that they operate freely.

5.Choose a location or base for the Controller that is non-combustible and within site of the motor. The base should not be subject to excessive vibration that may cause erratic operation of the PS (pressure switch). The Controller should be leveled so that the PS is level. Sight across the PS cover screws.

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