UDF400 - DFO Field Start-Up Gu

8/12/2019 UDF400 - DFO Field Start-Up Gu

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VIKING PUMP

Duplex Fuel Oil Packages

Field Start-Up Guide

Bulletin: UDF400Issued: 2-Oct-06


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Viking Duplex Fuel Oil PackageField Start-Up Guide Bulletin:Issue:

Page:

UDF4002-Oct-061

Before arriving on job site, make sure you have:

A copy of the approved drawing or certified print of the Duplex Fuel Oil Pump Package

A copy of the approved drawing of the Control Panel.

Read all of the instructions, notes, and suggestions in this bulletin to become familiar with the

start-up procedures. If you have any questions or require clarification please contact oursystems specialist, Humberto Da Silva, P.Eng. at (905) 542-8906 ext. 204 (or North Americatoll free at 1-888-845-7867 ext. 0 and asked to be transferred)

When you arrive at the site confirm the following:

Check the name plate rating on the Control Panel and compare with the incoming voltageand motor ratings.

The compound gauge should be located on the pump suction or in the suction header(depending on pump size and duplex package configuration layout).

The pressure gauge should be on the discharge of the pump or in the discharge header(depending on pump size and duplex package configuration layout).

Examine the suction header and confirm that the arrow cast into suction strainer points

toward the pump suction.Confirm the sales order number stamped on the serial number plate matches the packingslip. The serial number plate is typically located on the base plate of the unit.

On the control panel confirm the voltage, phase, horsepower, certifications and part numberstamped on the serial number plate located on the door of the panel match the specifications.Do not open the panel door.

Observations to be made on site:General Installation

The package should be anchor to the ground to prevent movement. If the unit is mounted ona shelf it should be properly bolted.

All piping (suction, discharge and relief return lines) should be externally supported to prevent

pipe stresses being transferred to the unit. Ideally flexible connections should be used.

Suction Piping

If possible follow the suction pipe to the supply tank. The suction line should go aroundobstacles instead of over them. This is to prevent air lock (the system will not prime if thesuction line is air locked).

If there are any valves on the suction line they should be in the open position.

With long suction pipe there should be a hand operated pump to evacuate the air from thesuction line. This pump should be piped parallel to the duplex package.

The relief valves piping can not be piped back into the suction piping. Both valves can bepiped to a common pipe. But that pipe has to be piped back to the supply tank. There shouldnot be any other valves in this line. If there is any they should be always in the open position.

Discharge Piping

The discharge will be piped into a day tank or directly into the diesel generator or boilerdepending on the installation.

If possible follow the discharge pipe. If there are any valves on the discharge line they shouldbe in the open position.

Take a look at the day tank. There should be the line from the duplex pump unit, overflow andfloats.

VIKING PUMP, INC. A Unit of IDEX Corporation Cedar Falls, IA 50613 USA

2006 VIKING PUMP, INC., All Rights Reserved


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Page:

UDF4002-Oct-062

Fig. 1 Typical F-432 & FH-432 Layout

Fig. 2 Typical Series 4195 & Spur Gear Layout




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Page:

UDF4002-Oct-063

Main Disconnect Switches ON-OFF

HAND-OFF-AUTO Switch for P2HAND-OFF-AUTO Switch for P1

P1-AUTO-P2

RUN Green Pilot Light

POWER ON White Pilot Light

RUN Green Pilot Light

Manual RESET Button

LEAD PUMP FAILURE Red Pilot Light

Fig. 3 Typical Control Panel Cover

Priming the Duplex Fuel Oil Package:1. On the Control Panel make sure both the Main Disconnect ON-OFF switches are in the

OFF position (power off).

2. Take a look at the suction gauge to see if there is any pressure on the suction line. If thereis pressure and the application is not a flooded suction the suction line is pressurized.Carefully remove the drain plug from the basket strainer to release the compressed air.

3. Turn the four ball valves connected to the pressure gauges (suction & discharge gauges)to closed position.

4. Remove the thumbscrew from top of the lid of the basket strainers, rotate the lid counterclockwise until the pin hits and stops, and then remove lid.

5. Open the suction valves.

6. Fill the strainers with diesel (the suction valves should be in open position, as you fill onestrainer the liquid level will flow in the other strainer).

7. Reinstall the lid with the tab of the lid just to the left of the boss with the body, rotate the lidclockwise until the holes line up, and reinsert the thumbscrew.

8. Both the suction and discharge ball valves should be in open position.




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Page:

UDF4002-Oct-064

9. On the Control Panel, turn the Hand-Off-Auto selector switches to Off position for bothP1 and P2.

10. Turn both the Main Disconnect On-Off switches to ON position (power on).

11. Turn the P1-Auto-P2 switch to P1 position.

12. Have some one observe the motor fan for the next operation.

13. For P1 turn Hand-Off-Auto selector switch to Hand position and P1 will start.

14. After approximate 3 seconds turn the Hand-Off-Auto selector switch for P1 back to Offposition.

15. Confirm that the motor fan had spun in the proper rotation. If the motors are not rotatingproperly have an electrician switch the motor leads and check again the rotation of the

motors.

16. Repeat steps 11 to 15 for P2.

17. Turn the four ball valves connected to the pressure gauges (suction & discharge gauges)to the open position.

18. For P1 turn Hand-Off-Auto selector switch to Hand position and P1 will start.

19. Observe the suction compound gauge; it should start pulling a vacuum. The dischargegauge will read 0 psi. Run P1 for no more than 2 minutes then turn it off. Place you handon the pump (around the seal area) and if it starts heating up, turn off the pump to preventmechanical seal failure.

20. When the pumps are primed and pumping the discharge gauge will show a positivepressure.

NOTE:If the suction line is long you may have to refill the basket strainer again. Before this is done thesuction valves will have to be in the closed position, other wise the vacuum will be lost. Then alternaterunning P1 and P2 in manual mode.

NOTE:Some local codes specify a anti-siphon valve to be installed on the suction line. It is usuallyinstalled close to the main supply tank. In some cases this valve will prevent the pumps from priming. Ifthe pumps dont prime after a few attempts ask the contractor to loosen the spring in the anti-siphon valveand then after the pumps are primed the spring can be set in order to meet local codes.

NOTE:If the installation has a flooded suction, turn the suction and discharge valves to the openposition. The suction pressure gauge should show a positive pressure. If it doesnt follow the suction lineto the supply tank and see if all the valves are open. If all the valves are open and the pressure gaugesdont read a positive pressure there a blockage in the line. The blockage will have to be cleaned beforerunning the pumps.




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Page:

UDF4002-Oct-065

CONTROL PANEL Check the name plate rating of the Control Panel and compare with the incoming line voltage and

the motors ratings. Adjust overload relay setting to full current rating Check that motor protector push actuator(s) is (are) in start position. Check that float switches are adjusted to the desired levels Check that the controller is properly connected to the pump motors If motors are rotating in the proper direction (as checked in steps 10 to 16 under Priming section),

and all the above checks out correctly, turn the Hand-Off-Auto switches for both P1 and P2 tothe Auto position.

Activate float switches manually and test if the pumps start and stop at desired levels. Once the level falls below the start lead pump level float switch FL2 (as shown in diagram under

Float Controls), the pump motor is energized and the lead pump starts pumping fuel into the tank. If the lead pump has failed and the level falls below FL2 start lead pump level float switch, the

Lead Pump Failure red pilot light is turned on and the lag pump motor is energized so that thelag pump keeps pumping fuel into the fuel tank.

In order to turn off the Lead Pump Failure red pilot light, the manual Reset red pushbuttonmust be pressed.

Once the level reaches the stop all pumps level float switch FL3, the pump motors are de-energized and the pumps stop.

If the alternation selector switch P1-Auto-P2 is in the Auto position, the stop all pumps floatswitch FL3 triggers the alternator and reverses the order of the lead and lag pumps. Forexample, if P1 was the lead pump before the trigger, P2 will become the lead pump after thetrigger.

RELIEF VALVES

Checking Relief Valves Current Setting1. With the pump running notice the reading on the discharge pressure gauge.2. Slowly close the discharge ball valve.3. Operate only one pump at a time in manual mode.4. The reading on the discharge pressure gauge will increase.5. Make a note of the pressure reading when the valve is fully closed; this value is the pressure

relief valve setting. It should be approximate 15 to 20 psi greater than the specified pumpdischarge pressure.

6. Open the discharge valve and turn the pump off.7. If the pressure relief setting in satisfactory, repeat for the other pump.




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Page:

UDF4002-Oct-066

Setting the Pressure Relief Valves1. Turn the Hand-Off-Auto switches to OFF for both P1 and P2.2. Remove the cap (item J) of the

pressure relief valve for pump P1.3. Loosen the lock nut (item F)

4. Turn the adjusting screw (item C)clockwise to increase the pressuresetting or counterclockwise todecrease the pressure setting

5. Tighten the lock nut (item J)6. Reinstall the cap (item B) onto the

valve.7. Turn the Hand-Off-Auto switch for

P1 to HAND position.8. Slowly close the discharge ball valve

for P1. If the pressure relief setting isnot satisfactory repeat the operation tadjust the adjusting screw.

o

loat

9. Repeat steps 1 to 8 for pump P2.

FLOAT CONTROLS

The standard duplex control panel contains NC relays to operate three fswitches (switches supplied by others) for the day tank. If more than threefloats are required, the control panel would have to be ordered withoptional NC relays.

The top float (FL3) stops both pumps, the middle float (FL2) starts the leadpump and the bottom float (FL1) starts the lag pump.

It may not be practical to fill the day tank to test the operation of the panel. A simpler way is to have theelectrician simulate the open and closing contacts of the floats to check the operation sequence. Thisprocedure can be used to check the high and low level alarms (if supplied) in the panel. The electriciancan check the conductivity of the float (normally open or normally closed) to see if they are the same asspecified. In some cases there is no day tank and the pump duplex unit pumps directly into the diesel

generator or boiler. The panel will receive the signal from the generator and start the lead pump.




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Page:

UDF4002-Oct-067

PRESSURE SWITCHES

If the duplex unit is supplied with pressure switches (either single or dual stage) they will be installed onthe discharge line. The pressure setting will be factory set, but they are field adjustable.

To simulate a low pressure condition on the discharge line, have the control panel on automatic modeand then close the discharge valve of the pump running. The relief valve will open and the pumping liquidwill return to the supply tank. The pump will shut down and a red light will come on the panel, the time willbe that is set on the timer.

It is difficult to simulate an actual high pressure shut down. Have the electrician simulate by open orclosing the contacts in the control panel.

Field adjustment of the pressure setting can be done by the following:Single Stage Pressure Switch Square D 9012-GNG2

See UDF400-1 Single Stage Pressure Switch.pdf

Dual Stage Pressure Switch ASCO SC10D-TG10A21 See UDF400-2 Dual Stage Pressure Switch.pdf

FLOW SWITCHES

If the duplex unit is supplied with a flow switch it will be installed on the discharge line. To simulate a lowflow condition on the discharge line, have the control panel on automatic mode and then close thedischarge valve of the pump running (either P1 or P2). The relief valve will open and the pumping liquidwill return to the supply tank. Within a few minutes (usually 1 to 3 minutes) based on the time set on thetimer, the control panel will start the other pump and the Low Flow Signal red lights (optional equipmentrequired for installation of low flow switch) will light up on the panel.




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10/16

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A wARNINGHAZARDOUS VOLTAGECAN CAUSE SEVERE INJURY OR DEATHTo reduce he hazardof electricalshock al ways disconnect powerfrom the circuitbefore nstal l ing he pressureswitchor exposingthe electr ical erminals or maintenance.Per r idurre l per icolodi infor tunida shock elettr ico, r imadiinstal lare ' interuttore pressioneo pr imi di accedere i terminal iper manutenzioneoglieresempre ensionedal circuito.Um die Gefahrvon stromschlagen u mindern, or EinbaudasDruckwachtersoder Offnendas Klemmendackels uWartungszweckenie Versorgungspannungbschalten.Avant oute ntervention ur ce mater ial, ouper 'al imentationelectr ique e I 'apparei l f in d'eviter out r isqued'electrocution.ANTESde instalar l interruptora presiono ANTESde exponer asterminales lectr icas aradar iesmaintenimiento, EScoNECTELAENERTIA reduzea l pel igrode una sobrecarga lectr ica.

MOUNTING It is not recontmendedomount heswitchby itspressureonnection nly.Theholeand lots dentified s M or N are orsurface ountingheswitch.Whenconnectitheswitch o thepressureystem iping, um theswitch nto hepipeusinga wrencon hehexagonalodyof heactuator. o notapply everagehroughheswitchhousinFor ypeGxO,G*G the tandardressureonnections I 14-18 PTF. hedrysealhreashould ealagainst newextemal /4 NFrf threadwithout he uscof sealingapeocompounds. ltemate ressureonnectionsnclude: onnZ fc>r NO,GNG,GROGRGonlywhich s /4- 8 NFrfexternalhread, ormZ16forGNO,GNG,GRO,GRGonly s ll2-14NFrfexternal nd l4-18NFrfF ntemal hread. onnZl8 forall G*OG*G is l 116-20 NF-2A.

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Bul le t in o.6501 -1 1 35August,199

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WIRING

SET POINTADJUSTMENTS

NOTEDo not plug the 1/4 nch diameterholeson types GPO,GPG,GSO,GSG.

Class 012TypeG pressurewitches resuitableor #12,14,16AWG or 1.0-2.5msolidor stranded opperwire.Tighten erminal crewso 6-9 n-lbf (0.7- Nm).Thearenot suitable or use with aluminumwire. For enclosedypesG*G groundin(eanhing) rovisions ocated bove hesnap witchon heenclosureackplate nd [email protected] singlepole,doublehrowsnap witchcontains inglebreak ontacts fferingonnormallyopencircuitandone normallyclosed ircuit.These ircuitsareelectricalseparateut arenotfor useon circuitsof opposite olarity.For properwiring, refer othewiringdiagram n hesnap witchnot he erminaldentificationn hesnap witchThepressurewitch ssetat he actory o theoperating oint(s)marked n theoutsidof themechanism ousing.t is goodpracticeo cycle he switch o determine ctuoperating ointsbeforeproceedingwith readjustment.efer o the llustrationon pag2 for ocation f adjustment.Fornon-adjustableifferentialypesGRo,GRG,GSo,GSG,GTo,GTGThe ange djustment aybeused o seteither etpointandcompletesheadjustmcsequence.o increaseheoperating oints;with theswitchmounted sshown n thillustration npage2 and acing heswitch, lace flatbladed crewdrivern theslotof range djustment ut (A) and otate rom right o left.ForadjustableifferentialypesGNO,GNG,GPO,GpG,GeO,GOGThe ange djustmentsused oset hedecreasingetpointandmustbemade irst.Thisadjustments made n thesamemanner s or non-adjustableifferentialypes.

Range Adjustment

O 1992SquareD Al lRightsReserved Page


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Bul le t in o.6501 -1 1 35CAugust , 992

Differential Adiustment For types GNO, GNG,GPO, GPG, GQO, GQGAn inclependentdjustmentf thesetpointon increasing ressures available. hisadjustment ustbeperfonned fter hedecreasingressureetpointhasbeen djustedTum adjusting crew B) clockwise o raise hesetpoint on increasing ressure.hedecreasingressureetpoint snotaffected y thisadjustrnent.Note:Whenordering nyof these eplacementarts.Class, yp , andForlr of srvitchonwhich he eplacements o beusedmustbe spccified ith heorder.Table 2Item Description Class OrderType Form UsedOn2 Diaphragm ssembly 9998 PC265 GNO,GNG,GRO,GRG-1

REPLACEMENTPARTS

COPYRIGHT NOTICE

PLEASE NOTE:

Diaphragm ssembly 99989998 PC 266PC 267 GNO,GNG,GRO,GRG-3GNO,GNG,GRO,GRG-4Diaphragm ssembly 9998 PC 2689998 PC 269 GNO,GNG,GRO,GRG-sGNO,GNG,GRO,GRG-6Diaphragm ctuator ssy 9998 PC 1779998 PC 178 GPO,GPG,GSO,GSG-1GPO,GPG,GSO,GSG-2PistonActuator ssv

Enclosure ssemblv 9049 UE-1 Converts ypeG.O to G.G

@1992 y Square Company , l l r igh ts eserved. hisbu l lc t inmay not be copied n wholeor inpart,or transf'erredo anyothermediawithout hc writtcnperntission f SquareD Contpany.

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PC 270PC271PC 272PC273

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must comply rrth loc-l codcsend thc Natkroal EhctricalCode. Allnclsurer arc prcrrdcd witb two 3/,t' NPT conduit hubswith onehcn not in r.rsc.t is recommendedhat a flexibleconduitconnec-bc urd. If ngid conduit sused, o not consider t or use t asa meanssupport mounting).For general urpoce ndwalertighlconstruction,hecover s remored by loosening wo screps hen tvristing lightlyandconstruction, he coverunscrews.Whenexplo-s replaced,orquecoverlo 135 + 10 n-lbs [10,7 r- 1, 1No. 14 AWG copperwire raled or 60oC minimum. All switchesgrounding crew ndclamp n he enclosureFor factorywiredswitch,ead scommon, ed ead s normallyopen,blue e ad s normallyclosed,the green eadwire is a ground.

must be within rangstatedon nameplate.o slay i thin theelectr icalange f thes*i tch atingmav esul t n!o or poematurr ailurt of electrkal sritch.CAUTION: IlordcrrrcrcsCwscrwffrrfrrlr-E rllmaking terminal connections. Vyhenconncc{ionserc medc, be surcs no stness n the wirc leads. Either condition mey causmalfunction

ELECTRICAL ATINGSSY/ltchUnlt Ratlngs tor Llmll Controls andPressure ODrat9d S\Mtches Ratlngs forInduslrlal Conlrols andTempralur ndlcalhg andBegulatlng Equlpment

StandaldslMlchRatlng

5 AmpsRos., 251250 AC1/8HP 125VAC1/4 HP 250 vAc0.4AmDRes.. 25VDC15Amp6 es., 25 VA C10AmpsRes 25OVACl/4 HP125VAC1/2 HP250VAC112AmpRes., 25VDC1/4Amp Bs., 50vOC

SchematicSPDT

N . O .

INSTALI.-{TIONOF TEMPERATURETRANSDUCERSProbe

directprobe local) emperalureransducersprovided ith 1/2" NPTWhen nslal l ing, o nol use wilchunit asa ever or ightening.wrenching latsprovidedat baseof transducer or tighlening.and Bulb

lary ndbulb(remole) emperalureransducersre provided il hf capi l lary nda 3/8 diameter ensingulb.CALTIOIi: Do not bendcapillaryat sharpangles.Forproperoper-besurese sin3bulb is completelymmersed n luid andnot n contactlement r anythint that would directly affect he empraturethe fluid being scnsed.

Thermal Well (Optional Feature)A thermalwell maybe used or capillarl and bulb (remote)or direct probe1.aal) empe alure ransducen.The thermalwellaffordsprolection or thesnsingbulb and allows emovalof the rnsing bulb while maintainingFressureightvessel.When installing nsrng bulb in lhermalwell, be surerirat t is fully inserted.Where a thermal cll alreadyexists,am nuts maybcobtained o adapt he capillaryandbulb to the existing he malwell. Theensting hermalwell muslbe for a 3 8' drameler nsing bulb.Union Connector (Optional Feature)A union onneclorr l l a l lo* di reclmounting f the nsing bulb n he luidbeing ontrol led. nslal lunion nto pipingconnection efore ighteninguniononlo bulb. For maxrmum rrformance the bulb shouldbe nsertedin he unionconneclion o hal theendof the sensing ulb s evenwith th eendof the unionconneclornut. Do not applyexcessiveorquewhen ighlen-ingunionconnector ul .Adjustment (Signal Setting) of Tlvo-Stage Dual A{iust'ment Switch'Io makeadjustments,signal e ting) a 7116 wrenchand a pressure rlemperaluregage (within suitablerange) are required. If electricalconneclion lo l ine of final application) f the swrtch s not desirable,batlery powered tesl lamp or ohm meler may be used. hessure ortempealure rangescales houldbe used or initial signal e ting. Thesewillbe accuratewithin 5%. l,rn :rn lock ring and lurn ad justingnul until redline s evenwilh the desired ange. For exactsignal etting, roceed sfollows:A WARNING: To prevent the possibility of personaliqiury or property damage, turn ofT electrical power whenmaking permanent electrical connections to switch.Adjustrnent Signal Setting)of Normally ClosedorNormally Open S*itch, Increasing Signal (Refer o Figure 2)

1. If the swrtchs n he ineof inalapplicationhen djuslmentsignalsetting)s made, e sureswilch anbe esloperatedwithoulaffectingolherequipment.2. l-oose ock nng on adjuslmenl ul and urn lowsignal djustment ul, full uprrards and high sig,oa-ldiuslment fu! down using a 7/16"

wlc nc h .

A CAUTION: Adjusting nut wil t turn easi ly unti l i t hi ts a stop. Do notover torque; over torquing may caus internal damage resulting in malfunc-tion.

3. Remove switch cover to gain access lo snap switch. See seclion onl4/iing for cover removal.

4. Fol low the step in the chart below lo make signal setl ing:

AdlustmentProcedurNORMALLY CLOSED NORMALLY OPEN

SrMtchTermlnal Tesl LampOn-Ofl SrMlchTormlnal Tesl LampOn-Olt1 Slarthg at zsroslg-nal,connct est amplo common NC On (Clo6dClrcun) NO Olf (OpenClfcutl)2 Apply deslredacluatlon slgnal. Thenback oft slgnaladlustlng nul untllswltch acluales.

NC Oll (OpenClrcult) NO On(Cloed

Clrcull)

: -owf srgna loddreo roetualixlslgnal.Cn iclo'scClrcun)

|lo dl tooenClrcut l )

5 . Cyclebetwee signal e lingsand makeminor adjustmentso adjuslingnuts as required o achieve he exactsignalsetting.Afler selling hasbeen made,makepermanenleleclricalconnections.

AASCOLECTRIC limited

S C O ValvesBRANTFORD. NTARIO

V

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Page 2 o{ 4 Form No. V5736F2


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Adustment (Signal Setting) of Normally Closcd orNormafly Open Switch, Decreasing Signal(Refer o Figure 2)1. If the wnlch s n the ine of final application henad;ustnrnt signalselting) s made,be sureswitchcanbe lestope ated rthout affectingother equipment.2. Loosen ock ring on adjustmentnutsand lurn lory signalad;ustmenlnut fullupwardsandhigh signaladjustment ul slightty eyonddesiredactuationsettingusinga 7/16 wrench.

A CAUTION: Adjustmentnut will turn easilyuntil it hits a stop. Donot over orque;over orquingmay cause nternal damage esulting n nal-fu nction.] R e m O V C $ i : . ' h C a r r c r \ i i r i n 3 i C c r . l , ' . : : r l . r r : l C h S c e : t ' C t r ( ) n O n

i|' nng fur COvr re rotrral4. Follo* stcps n charrbclo* to makc signal tting.

AdluslmntProcedureNORMALLYCLOSED t{c)RMALtY Cp\

SwllchTrmlnal ToslLampOn-Ofi S\./tlchTermlnal T6l i_.JngCn-Clt1.Startlngwilh Inltlal lgnalabove deslred actuatlonsttlng, connect tsl lamplo common.

NC ofl(OpenClrcul l )^to Ortfu.dCrqJn)

2. Dcrease slgnal lodslred acluatlon slgnal.Th6n advanc adJustlngnul untll swltch acluales.

NC On(ClosedClrcull)

NO dlrOgcnQtrattl)

3. Incraas slgnal locheckroacluallon slgnal. NC otf(OpenClrcun)NO O;t(Clo3dClrcun)

5. Clcle between actuation and reactuation signals and make minoradjustment to adjusl ing nuls as required to achieve the exact signalse l t inqs.

6. Alter scltrngs haw bccn ma&, trghten lock rings and make perrnanenlelectrical conneclions.

Testingof InstallationIf the adjustment of the switch has been made outside of the l ine of f inalappl ical ion, the swi lch should be retesled when inslal led in lhe l ine of f inalappl ication. Fol low adjustment instructions. Be sure swi lchcan be testoper-ated without affecting olher equipmenl.

MAINTENANCEA WARNING: To prevent the possibility of personaliqiury or property damage, turn off electrical power anddepressurize switch unit bfore inspection or removal.IMPORTANT: witchs not ield epairable. he witchmust e eturnedto the factory (Automatic Switch Company. Florham Parlq New Jersey) orserviced only by an authorizd factory represntative. Address all serviceinquiries to Automatic Switch Company, 50-60 Hanover road, florhamPark, New Jersey 07932, Valve Service Dpartment. The only mainte nancewhich may be performed on the two stage dual adjustment switch is changingthe setting of the adjusting nut and replacement of the transducer unit.Replacement of transducer should be done only if external leakage isevident.PreventiveMaintenance. Whilenservice,peralehe \r'itchcycle enreedesiredignals)tleasl once a month lo insure propr ope al ion. If necessary, lectr ical

A S C O V a l v e sASCOLECTRICimited BRANTFoRDNrARlo

wiring and pipe conneclion should be made so that svrlch can b lesloperated withoul affecting olher equipment.

. Periodic inspecl ion of the switch, externalsur{acesonly, should r*- car-r ied out. Swilch should be kept clean and free from painl . forergn mat-ler, corrosion, icing, and freezing conditions.

. Keep the medium enlenng the l ransduceras ree as fx-ns ib le rom drr land fo re ign malena lCausesof Improper Operat ionS * i t c h * r l l n t - r l c l u s l e ) r a c l u 3 1 e 5 n d r e : i i u - i t cs u n J ( \ i i - 3 t ' l c. Inco


16/16

Enlargedsometric iewShowingAdjustingNutAndLockRingRight ide,highsignaladjustingnut set at 80 psigLeftside, ow signal -adjustingnut set at 20 psig

adjustingnut(7116 wrench)lock ring(tighted ecurely)

ExplosionproofSwitchEnclosureShown

CAUTIONAdjusting utwill urneasily ntil t hitsa stop.DO NOTOVERTORQUE

Torqueswitch coverto135+ 0 n- lbs 15,3 1,1Nm]

A.dj,illflJ$,;ou.,l--1\-JTorque olts(4)nacrisscross annero80+10 n- lbs 9,0 1,1Nm]

FrontView LookingDirectlyatTwo-StageDual AdjustmentSwitch(Pressure calesShown)Setting) f Two-StageDual

switch coverIMPORTANT

The thlrddlgit in catalog No.on the switchunit and transducerunil mustbe identical.See examplebelow.

two-stage ualadjustmentswitchunitexampleCatalogNo.SCB2DATI314 NPT orconduitconnectionothends

transducergasket(used on WatertightorExplosionproofonst ruct ion nly)transducer ni texamPleCatalogNo. TEE0A/+4tIA S C O V a l v e s

ASCOLECTRICimited BRANTFoRD,NrARto

bolt1+;Figure3. SwitchUnitandTransducer nit o be Assembled.

Page 4 of 4 Form No. V5736R2 PRINTED N CANADA

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UDF400 - DFO Field Start-Up Gu