NFPA 20 Installation Guide

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NFPA Installation Guide


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NFPA / FM / UL FIRE PUMP

INSTALLATION GUIDE

GUIDE TO THE INSTALLATION

OF FIRE PUMPING STATIONS WITH

NFPA FM OR UL EQUIPMENT

FMPSDRG1.CDR

SPP Pumps Inc. Inc6710 Best Friend RoadNorcross, GA30071USA

Telephone:

++ (770) 409-3280 Fax:

++ (770) 409-3290

Doc No: W00-007E (USA)Revision No: 0

Date Issued. Mar 2005Produced at SPP Pumps Inc.Inc, Norcross, GA


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SAFETY INSTRUCTIONS

Safety Instructions

The products supplied by SPP Pumps Inc. have been designed with safety in mind.Where hazards cannot be eliminated, the risk has been minimised by the use of guardsand other design features. Some hazards cannot be guarded against and theinstructions below MUST BE COMPLIED WITH for safe operation. These instructionscannot cover all circumstances; YOU are responsible for using safe working practicesat all times.

1 SPP Pumps Inc. products are designed for installation in designated areas, which areto be kept clean and free of obstructions that may restrict safe access to the controlsand maintenance access points.

2 Access to the equipment should be restricted to the personnel responsible forinstallation, operation and maintenance and they must be trained, adequately qualifiedand supplied with the appropriate tools for their respective tasks.

3 SPP Pumps Inc.. requires that all personnel that are responsible for installation,operation or maintenance of the equipment, have access to and study the productinstruction manual BEFORE any work is done and that they will comply with all localand industry based safety instructions and regulations.

4 Ear defenders should be worn where the specified equipment noise level exceedslocally defined safe levels. Safety glasses or goggles should be worn where workingwith pressurised systems and hazardous substances. Other personal protectionequipment must be worn where local rules apply.

5 Do NOT wear loose or frayed clothing or jewellery that could catch on the controls orbecome trapped in the equipment.

6 Read the instruction manual before installation, operation or maintenance of theequipment. Check and confirm that the correct instruction manual is used by comparingthe serial number on the equipment with the documentation.

7 Refer to the data plates on the equipment supplied, operation of the equipment outsidethese specifications will increase the risk to operators and may lead to premature andhazardous pump failure.

8 IMPROPER INSTALLATION, OPERATION OR MAINTENANCE OF THIS SPPPUMPS INC. PRODUCT COULD RESULT IN INJURY OR DEATH.

9 Within the manual, safety instructions are marked with safety symbols.


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NFPA / FM / UL FIRE PUMP

INSTALLATION GUIDE

HazardThis symbol refers to general mechanical aspects of safety.

Hazard This symbol refers to electrical safety.

ATTENTION This symbol gives warning of a hazard to the pump itself, which in turn, could cause arisk to personal safety.

CONTENTS

Section Page1 Introduction............................................... 3

2 Installation ................................................ 5

3 Connection to Services........................... 11

4 Commissioning ....................................... 15

5 Grouting.................................................. 16

6 Operation................................................ 167 Maintenance........................................... 17

1 Introduction

The extensive range of SPP Pumps Inc.approved fire pumps are designed to suitmost fire protection applications. SPPPumps Inc. usually supplies pumping andcontrol equipment to specialist fireprotection contractors who are responsiblefor the installation of sprinklers, pipework,

pumps, control panels and alarm systemsetc. This manual gives an overview of therequirements for installation, operation andmaintenance of fire pump station equipmentand therefore will refer to equipment thatmay not have been manufactured orsupplied by SPP Pumps Inc., but isnecessary for the successful operation ofthe system.

Before attempting to install the equipment itis important to familiarise yourself with themain items supplied and to ensure that the

appropriate cables, pipes and fittings are

available to mount and connect theequipment. The equipment supplied bySPP Pumps Inc. is shown on the contractdocumentation. The fire protectioncontractor is responsible for the provision ofall other items required to complete theinstallation.

Fire pump stations will contain a variety ofequipment to meet the requirements of thespecific fire protection installation butusually will comprise the following main

items:

1.1 Duty Pump, Electric Driven Pumpset

Selected from the SPP Pumps Inc. range offire pumps to suit the required systemoperating parameters, these pumps meetthe standards set by Factory Mutual,Underwriters Laboratories & National FireProtection Association and provide reliabletrouble free service. These pumps may beend suction or split case construction andare driven through a suitable flexiblecoupling by an electric motor selected tomeet the pump power and dutyrequirements.

1.2 Standby Pump, Diesel Driven Pumpset

This equipment comprises an approvedSPP Pumps Inc. fire pump matched to anengine which has been specially preparedand approved for fire pump applications,together with a SPP Pumps Inc. or othermanufacturer's approved control panel.These items are mounted on a rigid baseframe with batteries and engine coolingsystem, providing a self-contained unit for


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Manual No/RevW00-007E / 1 NFPA / FM / UL Fire Pump Installation Guide

Our policy is one of continuous improvement and we reserve the right to alter specifications without giving notice. Page 4

ease of installation.

The fuel tank assembly is usually mountedseparately and consists of an approveddesign of tank sized to match the power and

duty requirements of the pump and fittedwith gauges and switches to suit customerrequirements.

1.3 Control System

SPP Pumps Inc. can supply a full range ofcontrol panels for both electric and dieseldriven fire pumps, optionally to meet specialcustomer specifications, proprietary controlpanels from other manufacturers may besupplied. The fire protection contractors areresponsible for the provision and setting ofsuitable pressure switches.

Where required, SPP Pumps Inc. cansupply a Remote Alarm Panel to providenotification of fire and the status of thesystem at a remote security monitoringstation.

1.4 Pressure Maintenance (Jockey) Pump

This is usually a small pump that isdesigned to maintain pressure in the trunkmain system at a pre-set level such that thesystem is primed for operation. On largerinstallations this pump may be a SPPPumps Inc. product but on smallerinstallations a proprietary multistage pumpis often supplied.

1.5 Typical Pump House Schematic Layout

This diagram shows the main features offire pump house installations, these will varydepending upon the number and types ofpumps to be installed and they will beplaced to suit the position of main pipe runsetc.


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NFPA / FM / UL Fire Pump Installation Guide

Manual No/RevW00-007E / 0 (USA)



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It is usual for all the main items ofequipment to have been supplied by SPPPumps Inc.., but other manufacturer's itemsmay have been specified and supplied to

meet special installation requirements. Thecontractor responsible for the installationmust provide all other items.

2 Installation

Please Note:-

Fire water pumpsets and controlsystems should be Installed, and

Accep ted, in fu ll accor dance wi th NFPA20. Failure to Install SPP Pumps Incsupplied equipment in full accordancewith NFPA 20 will affect equipmentwarranty.

2.1 Pump Location

The pump should be installed as near to thewater source as possible, with the shortestand most direct suction pipe practical.

Allow sufficient access for inspection andmaintenance with enough headroom for anoverhead crane or hoist of sufficientcapacity to lift the heaviest item ofequipment.

The location for a diesel engine drivenpump may be dictated by the requirementfor an air supply and the need to vent theexhaust.

Air is required for combustion and coolingpurposes, with air and radiator cooledengines in particular needing large volumesof air for cooling. Inlet and outlet apertures,suitably sized and positioned to prevent airrecirculation, must be provided in the pumphouse structure. It is recommended that a

low level vent matches a high level vent inthe opposite wall.

Exhaust runs should be as short aspossible. Small bore pipe and/or excessivelength will cause backpressure on theengine, reducing engine performance andtherefore pump output.

2.2 Foundations

A foundation plinth should be constructed tosupport each pumpset on a floor area freefrom expansion joints. These foundation

plinths should be sufficiently substantial toabsorb vibrations and rigid enough to avoidany twisting or misalignment. As a roughguide, they should be at least 12 incheswider than the pumpset on all sides andweigh between 1 and 1.5 times the weightof the pumpset. Plinths for fire pumps arerecommended to have a minimum height of300mm but height should be sufficient toachieve the necessary weight and toaccommodate the pockets for fixing bolts.

Foundation height may be calculated thus:

Height (feet) = W150 x B x L where:W (pounds) = total weight of pumpset150 (pounds/foot 3) = concrete densityB (feet) = foundation widthL (feet) = foundation length

Use a suitable concrete mixture by volumeis 1:2:3 (Cement : Sand : Aggregate) with amaximum 4.00 inches slump, and a 28 daycompressive strength of 1,750 tonf/in 2

The foundation should be reinforced withlayers of 6.00 inche square No.8 gaugesteel wire fabric, or equivalent, horizontallyplaced 6.00 inches apart.

Foundation concrete should be pouredwithout interruption to within 1.00 inch of thefinished height.The top surface should be well scored andgrooved before the concrete sets to providea bonding surface for the grout. Thefoundation should be allowed to cure forseveral days before installation of thebaseframe.


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2.3 Foundation Bolts

Two types of foundation bolts are normallyused; either rag bolts set into pre castpockets in the plinth or, chemical anchorbolts for which pockets are drilled into theplinth after casting.

Rag Bolts

Bolt size Clearancehole size

Bolt dimensions(see Figure 1)

Dia. Length A B C

16 160/240 19 32 80 40

20 300/350 24 40 100 50

24 350 28 48 120 60

Pocket Dimensions:

Tapered pockets are recommended for firepump installations.

For Chemical Anchor Bolts, refer to themanufacturers installation instructions.

BC

A

PLINTH2.CDR


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2.4 Baseframe Types

There are four main types of baseframe asillustrated below. Note that these figuresshow chemical type anchor bolts.

Channel Section Baseframe

Folded Baseplate w ith Flanges

Folded Baseplate wit hout Flanges

Box Section Baseframe

2.5 Installing the Pumpset(s)

It is important to install fire pumpsetsBEFORE installing the main suction anddelivery pipework. This is to ensure that thepipes are positioned to match the pump

location and do not transmit load andinduce strain in the pump casing.

For long coupled pumpsets, remove thecoupling guard to provide access to theshaft and coupling.

When using rag bolt fixing, suspend thepumpset over the plinth and hang thefoundation bolts from their holes usingtapered washers for channel base framesand plain washers for other types, with the

ATTENTION


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nuts showing at least one full threadthrough.

Place sufficient metal packing pieces onboth sides of each foundation bolt hole tosupport the base frame at about 25mmabove the plinth surface. Lower thepumpset and insert the rag bolts into theirpockets. Continue lowering until thepumpset is supported by the packing.

Adjust the height of the packing with shimsin each position until the shaft is horizontaland the pump flanges are vertical, do notlevel from the baseplate as this may not betrue to the shaft and flanges.

Ensure that the foundation bolts are verticalto permit easy lifting of the pumpset, andthen grout the bolts with non- shrinkinggrout. Allow sufficient time for the grout toharden, usually 24 hours or asrecommended in the grout manufacturer'sinstructions. Tighten the nuts to the torquerecommended below.

Bolt Size 16 20 24

Torque Nm 95 185 320

For chemical anchor fixing with channelsection base frames it will be necessary tomount the pumpset, mark the foundationbolt positions and lift off the pumpset to giveaccess for drilling. Hang the anchor bolts intheir holes and lower the pumpset inposition having inserted the anchors intotheir fixing holes.

For other base frame types, refer to themanufacturer's instructions for drilling,installation and torque details.

After allowing sufficient time for the bond tocure, tighten the anchor bolts to the torquesetting recommended in the manufacturer'sinstructions.

Whilst tightening the fixing bolts check theshaft level and coupling alignment and ifrequired, adjust the packers to maintain theshaft level and the coupling alignmentwithin acceptable figures.

Refer to the pump and coupling instruction

manuals for details of shaft alignmentprocedures and tolerances or proceedgenerally thus:

a) Lateral AlignmentMount a dial gauge on the motor shaft orcoupling with the gauge running on theouter-machined diameter of the pumpcoupling. Turn the motor shaft and note thetotal indicator reading.

b) Angular Alignment

Mount a dial gauge on the motor shaft orcoupling to run on a face of the pumpcoupling as near the outside diameter aspossible. Turn the motor shaft and note thetotal indicator reading.

c) Confirm Lateral AlignmentMount the dial gauge on the pump shaft orcoupling with the gauge running on theouter-machined diameter of the motorcoupling. Turn the pump shaft and note thetotal indicator reading.

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d) AdjustmentThe motor must be shimmed and re-positioned to align the shafts to the couplingmanufacturer's specifications.

f) Alternative MethodIf a dial gauge is not available, callipers ortaper gauge may be used to measure thedistance between the coupling flanges atfour points around the circumference and astraight edge used to check the lateralalignment of the outer flange diameters.

2.6 Suction & Delivery Piping

Ensure that bolt grouting or chemicalanchors are allowed to dry thoroughlybefore connecting any pipework.

Note that fire pumpsets have regulatoryrequirements for piping and these must bestrictly observed. Refer to the appropriatestandard for details.

Both suction and discharge piping shouldbe supported independently and close tothe pump so that no strain is transmitted tothe pump when the flange bolts aretightened. Use pipe hangers or othersupports at intervals necessary to providesupport. When expansion joints are used in

the piping system, they must be installedbeyond the piping supports closest to thepump.

Install piping as straight as possible,avoiding unnecessary bends. Wherenecessary, use 45 or long sweep 90 bends to decrease friction losses.

Make sure that all piping joints are airtight.Where reducers are used, eccentric or 'flattop' reducers are to be fitted in suction linesand concentric or straight taper reducers in

discharge and vertical lines. Undulations inthe pipe runs are also to be avoided.Failure to comply with this may cause theformation of air pockets in the pipework andthus prevent the correct operation of thepump.

Typical End Suction Pump Piping installation

Eccentric Reducer on a Split Case PumpThe suction pipe should be as short anddirect as possible, and should be flushedclean before connecting to the pump. Forsuction lift applications, it is advisable to usea foot valve. Horizontal suction lines musthave a gradual rise to the pump. If thepumped fluid is likely to contain foreignmatter then a filter or coarse strainer should

be fitted to prevent ingress tothe pump.

A non-return valve or check valve and adischarge gate valve usually precede thedischarge pipe. The check valve is toprotect the pump from excessivebackpressure and reverse rotation of theunit and to prevent back flow into the pumpin case of stoppage or failure of the driver.The discharge valve is used when shuttingdown the pump for maintenance.

Shaft alignment must be checked again afterthe final positioning of the pump unit and

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connection to pipework as this may havedisturbed the pump or motor mountingpositions.

3 Connection to Services

The following section covers the normalservice requiring connection, but the actualrequirements for each installation will varydepending upon the equipment supplied.Therefore, some of the items covered maynot be relevant to specific installations.

Ensure that site electrical power supplycharacteristics match the data on theequipment data plates

If the control panels were manufactured orsupplied by SPP Pumps Inc. wiring

diagrams will be included with theinstruction manual. If others have suppliedthe panels, refer to their literature forelectrical details and wiring instructions.

All cables should be installed by acompetent electrical contractor inaccordance with the latest edition of the IEEregulations (UK) or to the latest regulationsappropriate to the territory of installation

3.1 Electric Motor Driven Pumpsets

Install the electric motor starter panel in a

convenient position for use and wire up tomains supply, to the electric motor and tothe trunk main pressure switch. Earthbonding connections are provided on allbase frames and must be connected to asuitable earth point.

3.2 Diesel Engine Driven Pumpsets

3.2.1 Control Panels

Where diesel engine control panels aresupplied fitted to the baseframe allconnections and wiring to the engine is

completed. For separate diesel enginecontrol panels, mount the panel in aconvenient position for use and wire up tothe diesel driven pumpset followinginstructions on the wiring diagrams suppliedin the manual.

Connect the control panel to the mainselectrical supply as shown in the wiringdiagram.

Where a pressure switch in the trunk main

initiates the start, fit the pressure switch in aconvenient position and wire up inaccordance with wiring diagram.

3.2.2 Fuel Tank

If the fuel tank is supplied separately, it isintended to be positioned it in a safelocation with convenient filling access andgiving short and direct fuel line runs.

When a fuel tank stand is supplied it isnormally designed to be fixed to a floorhaving the same level as the pump house.If a stand is not supplied or when specialconditions apply, reference should be madeto the diesel engine manufacturer'sinstructions for guidance on the correct levelto mount the fuel tank. It is important tocomply with the requirement for gravity fuelfeed to fire pump engines and to provideaccess for refilling and topping up the fuel.

The fuel gauge is normally supplied looseand must be fitted to the fuel tank as per themanufacturers instructions or installed andcalibrated thus:

1 Fit the float though the 1.5 boss on thetop of the tank; set the float to thebottom of the tank, i.e. in the emptyposition.

2 Screw the gauge into the boss and

confirm that it reads empty.3 If the gauge needs to be calibrated,remove the face of the gauge andextract the pointer, replace the pointerin the Empty position and refit the faceof the gauge.

Fill the tank with sufficient fuel for one hoursrunning for commissioning tests.

3.2.3 Water Cooling Systems

Most fire pump diesel engine installationsuse water-cooling systems. These fall intothree categories - radiator, heat exchangerand weir tank.

Radiator cooled engines employ a fan todraw air through the radiator thus directlycooling the closed engine circuit. The pumphouse must have inlet and outlet vents ofsuitable size to provide adequate air withoutre-circulation.

Heat exchanger closed engine circuits, arecooled by a supply of coolant from the


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pump outlet. A flow control system is fittedto prevent continuous flow of water to wasteunder standstill conditions. This supply ispassed through the heat exchanger and isthen piped to waste.

3.2.5 Batteries

Batteries for diesel engine starting may beeither lead acid or nickel cadmium type.

Lead acid batteries may be dry charged orconventional; they may be supplied dry orpre-filled and charged. Refer to the batterymanufacturer's manual for details on puttingnew batteries into use.

Where nickel cadmium batteries aresupplied they are charged and have travelplugs fitted, removal of travel plugs and thecommissioning engineer usually doesconnection.

Note that a single-phase electrical supply tothe panel is required for the batterychargers. For packaged pumpsets suppliedwith lead acid batteries a hydrometer issupplied in the tool kit.

Typical Fuel Tank Arrangement

.

3.2.6 Exhaust System

Unless special conditions apply, a set ofstandard exhaust system components issupplied to suit typical pump houseapplications. Assemble the engine exhaustsystem (flexible pipe, solid pipe andsilencer) with the flexible section attachedto the engine and the discharge passingthrough the nearest outside wall Exhaustpipe runs should be as short as possible tominimise back pressure on the engine. If itis required that the exhaust system isextended, refer to SPP Pumps Inc.. forguidance as the system may need to be

increased in diameter to avoid excessivebackpressure.

3.3 Ancillary Connections

Electric motor and air or radiator cooleddiesel engine driven pumps will have a re-circulation system fitted to provide sufficientwater circulation to cool the pump when it isrunning with the discharge valve closed.For these units a feed is taken from thepump outlet, via a pressure differentialvalve, either back into the system wellupstream of the pump, or must be piped towaste.

FLASH ARRESTOR ADAPTOR

PIPE (2)COUPLING

FUEL FILLER CAP

F ILLER PIPE

DRAINPLUG

FUEL TANK FUELGAUGE

FUEL GAUGE(ON LARGER

FUEL TANKS)

FUEL TANK STAND(WHERE NECESSARY)

NOTE - FUEL AND VENT PIPES MUST BE ADEQUAT E LY SUPPORTED

FUE L RETURNFROM ENGINE

FUEL F E EDTO ENGINE

FUELPUMP

ENGINE FUELINLET ANDRETURNMANIFOLDS

ENGINE

FLE XIBLEPIPES

RETURN

FEED

STUDCOUPLING

STRAIGHTCOUPLING

ELBOWCOUPLING

BARREL NIPPLEFUELPI P E

GATE VALVE

STUDCOUPLING

NOTE - FUEL TANK OUTLET MUSTBELEVEL WITH OR ABOVE THEFUEL PUM P ON THE ENGINE

STUDELBOW

ROOF


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A pilot line taken from the pump inletcontrols the pressure differential valve.With the pump stopped the valve remainsclosed and thus prevents a continuous flow,which could occur under flooded suctionconditions. With the pump running thesuction on the pilot line opens the valve andallows flow. The differential pressure valveis not adjustable and its operation is entirelyautomatic.

For heat exchanger and weir tank cooleddiesel engines, the cooling water is takenfrom the pump outlet. This is sufficient tomeet the minimum flow requirement. The

components of this line are designed tomeet the requirements of FM /UL.

Waste water lines should be run from allancillary connections such as gland drainsor tundish etc. Where applicable, these areshown on the General ArrangementDrawing provided.

When installed under positive headconditions pumps should be provided withan air release valve on the top of the pumpcasing to provide a means of exhaustingtrapped air.

Typical Exhaust Systems


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Cooling Line Components

STRAINER

TO ENGINE

FROMPUMP

PRESSUREREDUCINGVALVE

PRESSUREREDUCINGVALVE

SOLENOIDVALVE

PRESSUREGAUGE

VALVEVALVEDRAINPLUG

DRAINPLUG

VALVE VALVE

STRAINER


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3.4 Pre-commissioning Check

If SPP Pumps Inc. is contracted to carry out the commissioning, the following check listshows items to be completed before the commissioning engineer arrives.

Pre-commissioning Check List1 Installation:Mounting plinths comply with instructions forsize, construction and locationSteel packers position the base frame 25 mmabove the top surface of the plinth.The shaft is level.The fixing bolts are grouted as instructed andtightened to the required torque.The shaft alignment has been checked andset to within the stated tolerances.

2 Suction and delivery pipework is adequatelysupported and NEGLIGIBLE forces aretransmitted to the pump casing.

3 Where applicable, all drain, minimum flow,and test pipelines are fitted, together withvalves gauges and flow meters.

4 Sufficient water supply is available for thecommissioning proof run.

5 The diesel engine exhaust has been fitted inline with recommendations.

6 The engine fuel tank is filled with sufficientfuel for at least one hour running time.

7 Batteries are filled and charged inaccordance with the manufacturer'sinstructions.

8 All wiring to controls and to remote alarmpanels is completed in line with appropriateregulations & power supplies are connected.

9 The area is clear of all builders material andrubbish to allow access to the pumps.

10 A customer's representative is available towitness the pump tests and the setting ofpressure switches.

It is SPP Pumps Inc. policy that commissioning engineers will give as much assistance aspossible to the customer in solving site problems. However, if due to incomplete installationor failure of equipment not supplied by SPP Pumps Inc., further visits are required tocomplete commissioning, for which additional charge will be made.

4 Commissioning

It is recommended that this is done by an SPP Pumps Inc. commissioning engineer. Referto the pump instruction manual for general instructions for commissioning pumpsets.Please note that these do not cover pressure switch setting levels for fire pumpinstallations.


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5 Grouting

After successful commissioning, grouting is required to compensate for unevenfoundations, distribute the weight of the pumpset, prevent movement and reduce vibration.Use only an approved high-strength grout, prepared and poured in accordance with the

manufacturer's instructions.

Build any formwork required to contain the grout.

If an epoxy grout is to be utilised then the foundation surface should remain dry. For othertypes of grout, soak the top of the concrete foundation thoroughly with water untilabsorption stops, and then remove any excess.

Fill the space between baseframe and foundation with grout ensuring that there are no airpockets. Allow the grout to harden.

Completely fill baseframe with grout (See NOTE). Alternatively, to reduce cost, thebaseframe may be filled with concrete of the same mix as the foundation. Ensure that aneven fill is carried out and the formation of air pockets is avoided. DO NOT use vibrationtechniques to aid this procedure.

After the grout/concrete has thoroughly hardened check the foundation bolts and re-tightenif necessary. Re-check shaft alignment.

Approximately 14 days after the grout/concrete has been poured or when it has thoroughlydried, apply an oil based paint to the exposed faces of the grout to prevent air and moisturefrom coming into contact.

NOTE - With box section base frames, grouting is not necessary, and is a purely optional detail,for aesthetics or cleanliness only.

6 Operation

This section outlines a 'typical' fire pump installation comprising one electric motor drivenpumpset, one diesel engine driven pumpset and one pressure maintenance pump oftenreferred to as a Jockey Pump.

This pressure maintenance pump is electric motor driven. Installation of this pumpsetfollows an identical procedure to the main pumpsets but reference should be made to themanufacturer's manual for further detail.

The equipment supplied may vary in quantity and type to suit the operational requirementsof the installation, but the principles outlined are common.

The pressure maintenance (jockey) pump is controlled with a pressure switch in the trunk

main. It will switch the pump on and off periodically to maintain trunk main pressure at ahigh level, ready for initial sprinkler operation.

The operation of fire pumps is also controlled with pressure switches in the main trunkmain, set to start the pumps at predetermined pressure levels.

In the event of a fire, water is released into the region of the fire. The pressure in the trunkmain then falls and at a pre-set level the pressure switch signals the duty pump to start.

If due to electrical or mechanical failure the duty pump fails to function or the sprinklerdemand exceeds the capacity of the duty pump, the pressure will continue to fall untilanother pressure switch set at a lower level signals the standby diesel engine driven pump


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to start.

On receipt of a start signal, the diesel engine control panel commences a predefinedstarting sequence. This will give the required number of rotations using battery setsalternately for the pre-set number of start attempts or until the engine starts.

When the engine starts, the automatic starting sequence is cancelled on receipt of a signalfrom the engine. If, after the completion of the automatic start sequence, the engine fails tostart, an audible alarm is sounded and the engine is returned to a standby condition inwhich manual starting is available.

NOTE - Fire pumps con tinue running until sw itched off manually .

Routine System Testing:

Periodic testing of fire pumps is required to meet insurance requirements to ensure thatadequate fire protection is available at all times.

For details of testing procedures, refer to the manufacturer's manuals for the pump, driverand control panel.

After testing it is important to ensure that all power and control panel switches are correctlyset and that the fire pumps are ready for operation.

It is also important to ensure that sufficient fuel is provided for diesel driven pumps to givethe required number of hours of running.

7 Maintenance

7.1 Safety

Electric Shock & Accidental StartingHazard -ISOLATE the equipment before any maintenance work is done. Switch off the mainssupply, remove fuses, apply lock-outs where applicable and affix suitable isolationwarning signs to prevent inadvertent re-connection.

In addition, on diesel engine driven pumps, disconnect the battery supply leads. Usinginsulated tools remove the negative connection first and isolate the fuel supply.

It is recommended that a conspicuous notice is displayed stating:

PUMP UNDERGOING REPAIRS

Hazardous Materials Wear a suitable mask or respirator when working with packing or gasket components thatcontain fibrous materials as these can be hazardous when the fibrous dust is inhaled. Becautious, if other supplier's components have been substituted for genuine SPP Pumps Inc.parts, these may then contain hazardous material.

Do NOT use 'MEGGER' type testing equipment without first disconnecting ATTENTION


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Fitting of normal replacement spare parts in the course of routine visits is included(wherever possible) within the agreed service price. Other spares will be charged extra atprices ruling at the time. Our engineers carry some stock spares and these would beutilised wherever possible.

Should a maintenance agreement be taken out after the warranty period has expired, SPPPumps Inc. may require to inspect the equipment before acceptance. Any replacements orrepairs highlighted by this inspection must be completed before commencement of thecontract visits.

--- " ---

SPP Pumps Inc. operate a comprehensive Spares and Service support network, and can becontacted as follows:

SPARES & SERVICE Telephone: ++ (770) 409-3280

For spare parts, supply only. ask for - Spares Dept. For breakdowns, spare parts and,on-site fitting, pump installation and, ask for - Service Dept. commissioning, and service contracts.

For breakdowns outside office hours. Telephone : ++ (770) 409-3280

Spares & Service Office

SPP Pumps Inc. General Fax line: ++ (770) 409-3290 6710 Best Friend RoadNorcross, GA

30071USA

NFPA 20 Installation Guide

Documents