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106524101en BT4 Manual
BT4 SERIES
HORIZONTAL BOOSTER
OWNER'S MANUAL

W A R N I N G warns about hazards that can cause serious personal injury, death or major property damage if ignored.

C A U T I O N warns about hazards that will or can cause minor personal injury or major property damage if ignored.

NOTICE indicates special instructions which are important but not related to hazards.

BEfORE YOU STAHRaTzardous voltage.

Hazardous voltage.

MOST WATER SYSTECManPsRhoOcBk,LbEuMrnS, oRrESULTCFaRnOshMock, burn, or W A R N I N G

IMPROPER INSTALLcAaTuIsOeNd.eath.

cause death.

WARNING

BEFORE INSTALLING PUMP, BE SURE TO READ

THIS OWNER'S MANGUrAouLnCd ApuRmEpFbUeLfoLreY, AND Ground pump before

FOLLOW ALL SAFETcYonInNeScTtinRgUtoCpToIOweNrS IN THIcSonnecting to power

MANUAL AND ON THsEupPplUy.MDPis.connect

supply. Disconnect

RASPEDEFDECITRIFIOITCNOAAPTLIROOONPDSEU.RCATpooTonrDIwtNpaAeunGrTmkb.AIpNe,fPSomrLToeARtowTUroECrk(TiSnIg)OFNOSRANpooonrDwtpaeunrmkb.pe,fomreotworoWrkiAngR N I N G HAZARDOUS PRESSURE: Do not run

CAUTION

pump against closed discharge. Release all system pressure before working on any component.

Keep work area clean, well-lit and uncluttered. Keep safety labels clean and in good condition. Wear safety glasses while installing or performing maintenance on pump. Replace missing or damaged safety labels.

C A U T I O N Do not run pump dry. Fill pump with water before starting or pump will be damaged.
If you purchased a complete pump/motor assembly, the motor is guaranteed by the manufacturer. In the event of a product failure, it must be returned to an authorized

Adhere to the guidelines of the National Electric Code (NEC) or Canadian Electric Code (CEC), and any other

service station for repairs. Motor warranty is void if repairs are not made by an authorized repair station.

state and local codes for ALL electrical installations. Check with the appropriate agencies or contact a

ELEcTRIcAL SAfETY

licensed electrician.

C A U T I O N Make sure all ELECTRICAL POWER IS

The "TROUBLESHOOTING SECTION" will assist you in OFF before connecting any electrical wires.

locating and eliminating the cause of any trouble you may encounter after installation. Check and have all tools needed to install your pump. Required tooling may include wrenches, pipe sealant, pipe fittings and nipples, screwdriver, etc. Be sure to have recommended wiring material to complete the installation correctly.

W A R N I N G Capacitor voltage may be hazardous. To discharge motor capacitor, hold insulated handle screwdriver BY THE HANDLE and short capacitor terminals together. Do not touch metal screwdriver blade or capacitor terminals or electrical shock could occur. If in doubt, consult a qualified electrician.

REAd ANd fOLLOW SAfETY INSTRUcTIONS

This is the safety alert symbol. When you see this symbol on your pump or in this manual, look for one of the following signal words and be alert to the potential for personal injury:

D A N G E R warns about hazards that will cause serious personal injury, death or major property damage if ignored.

WARNING
Hazardous voltage. Can shock, burn, or cause death. Ground pump before connecting to power supply. Disconnect power before working on pump, motor or tank.

Wire motor for correct voltage. See "Electrical Installation" section of this manual and motor nameplate.
Ground motor before connecting to power supply.
Meet National Electrical Code (NEC) or Canadian Electrical Code (CEC) and local codes for all wiring.
Follow all pump wiring instructions provided in this manual.

C A U T I O N DO NOT touch an operating motor. The surface of the motor may be HOT. Allow the motor to cool for thirty (30) minutes before handling.

GENERAL SAfETY
Do not allow pump or any system component to freeze, by doing so will void the warranty. This pump has been evaluated for pumping water only. Pump liquids other than water may void warranty. Maximum operating pressure is 500 PSI. Maximum suction (incoming) pressure is 75 PSI. Maximum water temperature is 120° F. Periodically inspect pump and system components.
INTROdUcTION
The BT4 horizontal booster pump is a low to medium capacity, high pressure, multi-stage unit. Although the BT4 horizontal booster pump will typically be used as a part of a larger water system, it is also capable of acting as a water system's primary pump (the BT4 should not be used to lift water more than 10 ft.). The BT4 can function as a multi-purpose high pressure pump, boosting water pressure from either city mains or private water systems. It is also ideal for applications that require more pressure than flow, such as industrial cleaning equipment, car and truck washing, pressure washing of commercial and residential buildings, fire suppression systems, general water use in multi-family structures, spray cooling in poultry and livestock houses, and lawn and crop irrigation. Siphon injectors may also be added to the system to inject chemicals externally to the pump's discharge, further expanding the scope of applications for the BT4.
fEATURES
SUCTION BRACKET / PUMP BASE / CARRYING HANDLE - All integrated into one piece for convenience, durability, strength, and expanded functionality. The bracket can be made of either cast iron or stainless steel
DISCHARGE HOUSING - Stainless steel with a 1 inch FNPT opening

PUMP SHELL - Stainless steel IMPELLERS AND DIFFUSERS - Glass reinforced engineered thermoplastic which is highly resistant to abrasive and corrosive conditions. Each hydraulic stage is built with Franklin Electric's Patented (US Patent No. 7,290,984) TRI-SEALTM Floating Stage System to ensure years of dependable operation
SHAFT - 7/16 inch stainless steel hexagonal rod COUPLING - Stainless steel or brass machined to the proper fit to ensure a secure motor connection with no power loss between the motor and the pump
MECHANICAL SEAL - Carbon/ceramic ELECTRIC MOTOR - (Supplied on complete pump/motor assemblies) Square flange, thermally protected, dual voltage, 115V- 230V, single-phase or three-phase in 208 ­ 230/460 or 575V, High and Low Service Factors, and hp's ranging between 1/3 and 3 ensuring the proper motor is available to meet a wide range of applications
INSpEcT YOUR SHIpMENT
All horizontal booster pumps are carefully tested, inspected, and packaged to ensure their arrival in working condition. When the pump is received, examine it closely to make sure parts have not been damaged or broken as a result of shipping. If damage is evident, report this immediately to your shipping carrier and dealer. The shipping carrier assumes full responsibility for the shipment's safe arrival. Any claim for damage to the shipment, either visible or concealed, must be made through the shipping carrier first.
INSTALLATION (Appendix 3 ­ Installation Records)
LOCATION OF THE PUMP Decide on a location for the pump installation that is suitable based on the enclosure rating of the pump's electric motor.
NOTICE: 1/3 ­ 2 hp BT4 booster pump/motor assemblies are CSA Certified for use for in USA and Canada and will be marked "ACCEPTABLE FOR OUTDOOR OR INDOOR USE." 3 hp booster pump/motor assemblies are CSA certified for use in the USA and Canada and will be marked "ACCEPTABLE FOR INDOOR USE ONLY"
INDOOR PUMP INSTALLATION OPTION Choose a clean, well-ventilated, weatherproof location that provides protection from freezing, flooding, and excessive heat. In addition, it should provide access for servicing and allow convenient draining of the pump, tank, and service pipes. A prepared foundation is not essential, provided the surface is hard and level. It can be mounted either horizontally (Figure 1 & Figure 2) or vertically (Figure 3) depending on the space available. When installing outside of the house, but within an enclosed structure (like a pump house) the pump should be protected with auxiliary heat to

1

FIGURE 1 - PUMP INSTALLATION USING MUNICIPAL SOURCE

Flow

Street Supply

Union

Flow

Valve (normally open) Check Valve

Union

Pressure Gauge

Service Tee

Check Valve

Booster Pump
Pump used in boost incoming pressure from city supply (Automatic Operation)

Inlet Pressure Tank
Pressure Gauge
Outlet Union Pressure Relief Valve
Drain Valve

Valve (normally open) Union
Pressure Switch

FIGURE 2 - PUMP INSTALLATION USING WALL HYDRANT OR FAUCET

FIGURE 4 - PUMP WINall SHyTdraAntLLATION DRAWING WATER FROM BELOW PUMP

Priming Plug

Tee 90 Elbow

Pump used in boost incoming pressure from wall hydrant (Manual Operation)

Male Pipe to Male Hose Adapter High Pressure Reinforced Hose

To Power

Hose Adapter

Water Supply

Pressure Gauge
Female Hose Connection Service Tee

10 Feet Maximum

High Pressure Hose

Suction Inlet

Discharge Outlet

Male Hose Connection

Pressure Relief Valve

Hose Adapter

Booster Pump

Gun Nozzle Weeping Type ONLY

Spray Nozzle Foot Valve
High Pressure Reinforced Hose

FIGURE 3 - PUMP INSTALLATION VERTICAL ON WALL

To Power

Service Line Gate Valve or Hose Bibb Male Pipe to Male Hose Adapter
High Pressure Hose with two Female Connections

Male Pipe to Male Hose Adapter (Suction) Gun Nozzle Weeping Type ONLY
Male Pipe to Male Hose Adapter (Discharge)
Female Hose Connection
High Pressure Hose
prevent possible freezing. OFiUguTreD4 O­ WOalRl mPouUnteMd Pto pINresSsuTrAizeLd LseArvTicIeOlinNe. OPTION NOTICE: ONLY 1/3 -2 hp BT4 BOOSTER PUMP/ motor assemblies ARE certified FOR OUTDOOR USE. Choose a clean location best suited for the water system required. A prepared foundation is not essential, provided
2

FIGURE 4 - PUMP INSTALLATION DRAWING WATER FROM BELOW PUMP

Priming Plug

Tee 90 Elbow

Male Pipe to Male Hose Adapter

To Power Water Supply

Female Hose Connection

10 Feet Maximum

High Pressure Hose
Male Hose Connection

Foot Valve

Gun Nozzle Weeping Type ONLY

thFeIGsUuRrEfa3c-ePiUsMhPaINrdSTaAnLdLAleTvIOeNl (VFEIRGTUICRALEO4N).WALL

It should provide access for servicing and allow

convenient draining of theServpicue Lminep, tank, and service pipes.

WhenToinPoswetralling

Gate Valve or Hose Bibb
outMsaleidPipee tooMfaletHhosee Adhapoteruse,

the

pump

and

piping

system must be drained completely of water to prevent High Pressure Hose with two
possible freezing. Female Connections

NOTICE: When the BT4 pump is used to draw water from

a water source below the pump, the required lift should

not exceed 10 feet. If the water Male Pipe to Male Hose Adapter is being lifted from a well,

(Suction)

decide

how

to

seal

the

well from surface Gun Nozzle Weeping Type ONLY

contamination

required by local authorities. The most common device for

this

purpose is the Male Pipe to Male Hose Adapter

sanitary

well

seal.

(Discharge)

Pipes fromFetmhaleeHowse ell should be kept below the frost line.

Either buryCtohnneectiown ellhead or use a pitless adapter that

leaves the wellheadHighePrxespsuroe Hsosee d for servicing to provide

sealed openings in the well casing below the frost line.

PLUMBING, PIPING, AND HOSES

InFiggureen4e­rWaall,l mkoeuenptedthtoeprsesuscurtiizoednsaernvidce dlinise.charge lines as large as possible. Avoid using bends, elbows and fittings whenever possible. All suction connections must be airtight, so use pipe compound on all threaded joints. Always use a suction strainer when applicable to prevent solids and foreign matter from being drawn into the pump.

HORIZONTAL OFFSET SUCTION PIPING

When the pump is offset from the well, the horizontal offset suction piping may have to be increased in diameter to reduce friction loss. The friction loss in a system increases:

1.) As the flow rate increases

2.) As the piping size decreases

Refer to the included BT4 performance tables (Appendix 1) and friction loss tables (Appendix 2) to determine the amount of head lost for a given application. Pipes from the well to the pump should slope upward (about 1" of rise for every 30" of run).

DISCHARGE PIPE SIZES FOR INSTALLATION

When the pump is located at a distance from points of water use, it is necessary to increase the discharge pipe size in order to reduce friction loss. The friction loss in a system increases:

1.) As the flow rate increases
2.) As the piping size decreases
Refer to the included BT4 performance tables (Appendix 1) and friction loss tables (Appendix 2) to determine the amount of head lost for a given application.
ELECTRIC INSTALLATION W A R N I N G Hazardous voltage can shock, burn, or
cause death.
C A U T I O N Improper wiring can result in permanent damage to the motor. Pump connection must comply with National Electric Code (NEC) or Canadian Electric Code (CEC), and all applicable local codes.
C A U T I O N If you are not sure of the proper electrical connections, employ a competent electrician for the installation. This ensures the installation complies with all noted electrical codes.
NOTICE: READ AND FOLLOW ALL INSTRUCTIONS! All dual voltage units come factory preset for 230 volts.
Disconnect power at electrical panel before making any electrical connections.
Supply voltage must be +/- 10% of motor nameplate voltage. Low or high voltage can damage the motor and will void the warranty.
If possible, connect pump to dedicated branch circuit with no other appliances on it.
Do not operate pump unless pump is grounded.
To reduce the risk of electrical shock, be certain that cord connected pumps are connected only to a properly grounded, grounding-type receptacle. For pumps without a cord, use permanently enclosed three or four conductor wiring such as conduit or BX cable. To ground the pump, attach the ground wire to the motor frame by the green grounding screw provided inside the motor, behind the motor end cap, and by attaching the other wires to line terminals on the terminal board. If motor is dual voltage, a wiring diagram is provided on the nameplate or under the motor end cap.
NOTICE: If you purchased a 3 phase pump/motor assembly, the motor rotation must be checked after priming the pump, but before continuous operation. Check the rotation by "bumping" the power to the motor and observing the coupling rotation. Reverse the rotation as instructed on the motor if it does not match the rotation arrow on the bracket. If you purchased a pump end and are attaching a three-phase motor, the rotation must be checked before the pump is connected to the motor. See "Installing Motor on Pump Ends" in this manual. A fused disconnect switch or circuit breaker should be placed at or near the pump.

DUAL VOLTAGE ADJUSTMENT (Single-phase pump motor assemblies only) NOTE: To change the motor voltage (Figure 5) unplug the dual voltage connector on the motor and reconnect it in the position required to match the available electrical system. The motor can be set for 115 volts or 230 volts. The voltage setting of the motor can be determined by looking at the alignment of the arrow on the plug and the arrow on the motor terminal board (located under the motor's end cover). Any questions on voltage setting requirements for proper motor and pump operation in your system should
FIGURE 5 - DUAL VOLTAGE ADJUSTMENT
FIGURE 5 - DUAL VOLTAGE ADJUSTMENT

230V 115V

230V 115V

230V 115V

230V 115V

115V

230V

115V

230V

be directed to an electrical professional. The factory preset is 230 volts.
NOTICE: Check motor terminal cover or nameplate for wiring instructions. The basic pump motor facts for the standard product offering are as follows:
1.) 3450 RPM
2.) Single-phase
3.) Dual Voltage, 115/230V, for ½ through 2 hp; 230V only for 3 hp models
4.) 1/2, 3/4, 1, 1-1/2, 2, and 3 horsepower single-phase motors are wired for 230 volts as a factory standard (3 hp is 230V only, other may be switched to 115V if needed).
Note: All wiring is subject to official inspection and must conform to the local electrical code. Install a circuit breaker or fused disconnect switch near the pump.

3

INSTALLING MOTOR ON pUMp ENdS
If you purchased a pump end without a factory supplied motor, you will need to install a motor to the pump end. A Square Flange type motor must be used with the BT4 pump ends. The table below outlines the minimum motor rating for your pump.

BT4 pUMp ENd MOTOR REcOMMENdATIONS

Pump End P/N
95920507 95920706 95921005
95920509 95920708 95921007 95921505 95922004
95920512 95920710 95921008 95921506 95922005 95922504
95920515 95920714 95921011 95921508 95922007 95922506
95920719 95921015 95921512 95922010 95922508
95921018 95921515 95922012 95922510
95922015 95922513

GPM
5 7 10
5 7 10 15 20
5 7 10 15 20 25
5 7 10 15 20 25
7 10 15 20 25
10 15 20 25
20 25

Stages
7 6 5
9 8 7 5 4
12 10 8 6 5 4
15 14 11 8 7 6
19 15 12 10 8
18 15 12 10
15 13

Low SF HP SF 1/2 1.30 3/4 1.27
1 1.25
1.5 1.10
2 1.10

High SF HP SF 1/3 1.95 1/2 1.90
3/4 1.65
1 1.65
1.5 1.47 2 1.25 3 1.15

ATTACHING MOTOR TO PUMP END 1. If you are installing a three-phase motor onto the pump end, the motor rotation must be checked prior to connecting it to the pump. Instantaneously energize the motor to check for counterclockwise rotation as viewed from the pump end, or shaft end of the motor. The proper rotation is also indicated by the rotation arrow label on the pump bracket. If it is not correct, reverse the rotation as instructed on the motor label. Failure to check rotation prior to assembly to the pump could result in pump damage if the rotation is wrong when the completed assembly is energized.
2. Apply a few drops of provided Loc-Tite 242 to the threads on the motor shaft and screw the shaft adapter
4

onto the motor shaft. Tighten the shaft adapter with a 5/8" open end wrench, while holding the opposite end of the motor shaft with a 7/16" open end wrench.
3. For three-phase motors ­ Install 1/4"-20 x 7/8" long, left hand thread shaft screw into the center of the shaft adapter. Tighten to 150 in-lbs in counterclockwise direction with 3/16" allen wrench. Skip this step for singlephase motors which do not use this provided screw.
4. Apply one drop of Loc-Tite 242 to each set screw and install both of them into the shaft coupling. Screw them into the coupling to the point where they just protrude into the ID of the coupling. This position will allow you to align the shaft adapter keyway with the set screws, but still allow the shaft adapter to slide into the coupling ID.
5. Position the motor up to the pump bracket and slide into position after lining up the shaft adapter keyway with the coupling set screws.
6. Fasten the motor to the pump bracket with the four provided bolts, lock washers and nuts. Lock washers should be located under the nut, and not under the bolt head. Tighten to 115 in-lbs torque.
7.Properly position the coupling by inserting a flat bladed screw driver between the pump bracket and the coupling. Pry the coupling all the way toward the motor with the screw driver.
8. Tighten the set screws to 75 in-lbs with a 5/32" allen wrench, while holding the coupling in position with the flat bladed screw driver.
OpERATION
RATINGS C A U T I O N Maximum operating pressure is 500 PSI.
Maximum suction pressure is 75 PSI. Maximum water temperature is 120 °F. Consult factory to pump liquids other than water. Avoid pumping abrasive or sandy water. Do not run pump dry.
PRIMING Never run the pump dry. To prime (fill with liquid) fill the suction pipe, pump and discharge piping completely with water. A foot valve is required in all installations where the pump is required to draw the water from a source below itself to prevent the priming liquid from draining out of the pump. A typical booster installation will be supplied by either a tank, or a pressurized water source, creating what is known as a flooded suction condition. A foot valve is not needed in flooded suction installations.
If the pump's installation will require frequent re-priming of the pump, it may be useful to add a capped "Priming T" to the suction line piping. This allows easy repriming without removing or disassembling the rest of the system plumbing.
W A R N I N G HAZARDOUS PRESSURE: Do not run pumps against a closed discharge, or at a system operating pressure above what is mentioned by the pump manufacturer.

STARTING Close all system outlets, then slightly crack one system outlet to allow excess air to bleed out of the system. Start the pump. Gradually, but immediately, begin opening the discharge valve to half open. If after a few minutes of running you do not get water, repeat priming process (the pump may be locked by excess air that is trapped in the unit). Once the pump is operating, fully open the discharge valve and a system outlet, letting the pump operate until the water is running clear. If after a reasonable time your water continues to run sandy or dirty, check with a water systems professional for additional assistance. No further priming should be needed unless the pump is drained for repair or storage, there is a leak in the suction plumbing, or there is a failure of the system's foot or check valve.
ADJUSTING PUMP SO SYSTEM DEMAND IS NOT MORE THAN SYSTEM SUPPLY Booster pumps are typically used to increase municipal water pressure anywhere from 10psi to 70psi above what is being supplied by the water utility. For the pump to operate properly as it boosts the municipal water to the desired pressure, a consistent and steady flow of water is required. The booster pump will fail prematurely if it is set to operate at a point beyond what can be supplied.
PROCESS TO ENSURE PUMP IS RECEIVING ENOUGH WATER TO MEET DEMAND
1.) Install a shut-off valve in the plumbing near the discharge of the pump.
2.) Close the valve, but make sure that the supply water is allowed to freely flow into the pump without restriction.
3.) Turn on the pump, and begin opening the discharge's shut-off valve.
4.) Continue opening the discharge valve until cavitation noise is heard coming from the pump. Cavitation (which can destroy the pump over time), often sounds like there is gravel inside the pump. STOP opening the discharge valve once cavitation is heard.
5.) Slowly close the discharge valve until the cavitation is no longer heard.
6.) The pump is now adjusted so that the system demand will not exceed what can be supplied.
MAINTENANcE
LUBRICATION The pump requires only water for lubrication and must never be run dry.
W A R N I N G Before disconnecting pump, be sure fuse box leads are disconnected or power is turned off. After

W A R N I N G reassembling the pump, refer to
priming instructions before running.

Hazardous voltage. Can shock, burn, or cause death.
Ground pump before connecting to power supply. Disconnect power before working on pump, motor or tank.

W A R N I N G Hazardous voltage can shock, burn or cause death. Disconnect power to pump before servicing unit.
DRAINING NOTICE: Disconnecting the pump will not necessarily drain all other parts of the piping system. If there are any concerns with the proper procedure or necessity of draining the suction plumbing, contact a water systems professional.

All piping and water tanks exposed to freezing weather should be drained. If there are any concerns with the proper procedure to drain the systems pressure tank, contact the tank manufacturer for assistance.

SERVICE AND DISASSEMBLY (Figure 6) Torque settings: Coupling set screws ­ 75 in-lbs
Motor to pump end bolts ­ 115 in-lbs Pump discharge head ­ 75 ft-lbs Pump shaft nut ­ 30 in-lbs Shaft screw - (three-phase only) 150 in-lbs

Tools required: 5/32" allen wrench 3/16" allen wrench (three-phase) 7/16" open end wrench 1/2" wrench 9/16" wrench (qty. 2) 5/8" open end wrench 1-1/8" open end wrench
1/4" nut driver Vise grips Workbench with vise Large pipe wrench Strap wrench Snap ring pliers Rubber mallet Flat blade screwdriver

5

FIGURE 6 - SERVICE AND DISASSEMBLY

on the shaft adapter. It must be removed using a pair of vice grips. 9. Installation of new motor is accomplished by reversing steps 1 thru 8 above, and applying the torque values specified above. At the final step of assembly, before tightening the 2 set screws, the coupling should be pried with a flat blade screwdriver all the way toward the motor for proper positioning.
FIGURE 7 - PUMP DISASSEMBLY FOR MOTOR REPLACEMENT

DISASSEMBLY FOR MOTOR REPLACEMENT 1. Loosen the 2 set screws on coupling between the motor and pump end. Step #8 indicates proper position of the coupling before tightening the set screws in the re-assembly process.
2. Remove the 4 bolts, nuts & lock washers that hold motor to pump end.
3. Pull motor away from pump end.
4. Remove motor canopy from wiring end of motor (Figure 7).
W A R N I N G Capacitor voltage may be hazardous.
To discharge motor capacitor, hold insulated handle screwdriver BY THE HANDLE and short capacitor terminals together. Do not touch metal screwdriver blade or capacitor terminals or electrical shock could occur. If in doubt, consult a qualified electrician.
5. In order to gain access to the motor shaft, loosen screw that holds motor overload in place and move overload aside without disconnecting wires.
6. Insert 7/16" open end wrench onto exposed motor shaft flats. The motor shaft may have to be rotated until the open end wrench lines up with the flats on the shaft.
7. For three-phase motors - remove shaft screw from the center of the shaft adapter w/ 3/16" allen wrench. This shaft screw has a left hand thread. Loosen by rotating in clockwise direction. Skip this step for single-phase motors which do not include this shaft screw.
8. Remove motor shaft adapter from pump end of the motor shaft with a 5/8" open end wrench, while holding the opposite end of the motor shaft with a 7/16" open end wrench. Some single-phase pumps do not have 5/8" flats

1 Discharge Connection

Remove with clockwise rotation.
Torque discharge connection to 80 - 100 ft-lbs at reassembly

4 Remove with Counter-clockwise rotation.

7/16" Open End Wrench
Overload Protector (Moved for access)
Capacitor

3
Overload screw (remove)

5 Snap
Ring
Impeller Stack

See View A-A
3
A
2

Disconnect from power source.
Motor Canopy

Centrifugal Switch
View A-A
Motor end view with canopy removed

PUMP END DISASSEMBLY AND MECHANICAL SEAL REPLACEMENT 1. Remove motor as outlined in steps 1 thru 3 of "Disassembly for Motor Replacement" above.
ATTENTION The next several steps involve disassembly of the pump end components. Special attention should be paid to the placement and orientation of every part to ensure that the pump is reassembled correctly. If you are not comfortable and/or familiar with this type of pump end work, please do not proceed.
2. While holding the pump bracket in a vise, remove the pump discharge casting from the pump end with a pipe wrench and clockwise rotation looking into the discharge of the pump.
3. Remove discharge adapter ring and o-ring from assembly making special note of their position and orientation.
4. If the pump shell does not come off with the discharge casting, it will be necessary to remove the shell from the bracket using a strap wrench and clockwise rotation.
5. While holding the pump/motor coupling with a 1-1/8" open end wrench, remove the ½" nut from the pump shaft. Next, remove all washers, spacers, pump stages, thrust washers, adapter and o-ring from the shaft.

6

Pay careful attention to the placement and orientation of these components to ensure that they are reassembled correctly.
6. Remove the snap ring and mechanical seal retaining washer located on the pump end of the pump/motor coupling.
7. With a rubber mallet, tap the shaft/coupling assembly through the bracket in the direction toward the motor attachment. The spring half of the mechanical seal is now loose and can be removed from the assembly.
8. The ceramic seat and rubber boot can be tapped from the bracket using a flat blade screwdriver and rubber mallet.
9. Reassembly of the pump is accomplished by reversing steps 1 thru 9 above, and applying the torque values listed above. Lubricating rubber components with soapy water will ease installation. Be careful not to contaminate the mechanical seal faces with foreign matter or the touch of your hands. Use the cardboard spacer provided with the new mechanical seal to tap the ceramic seat in place without contamination.

TROUBLESHOOTING

Problem Motor will not start
Motor overheats Pump delivers no water Low pump capacity or pressure
Noisy pump and motor
Water leakage at pump shaft

Possible Cause (a) Disconnect switch open (b) Fuses blown or thermal overload open (c) Locked shaft, hydraulic components set incorrectly (d) Motor windings failed (e) Defective starting switch inside motor (f) Disconnected or defective wiring (a) Low or high voltage (b) Hydraulic components are rubbing (c) Inadequate ventilation (a) Pump not primed (b) Plugged suction or discharge line (c) Leakage of air in suction line (a) Valves in suction or discharge lines partially closed (b) Suction or discharge line partially plugged (c) Wrong pump rotation (a) Plugged suction line (b) Defective motor bearings (c) Valve in suction line partially closed (d) Suction line partially plugged (e) Impellers rubbing inside the pump end (a) Defective seal assembly

7

PARTS FOR BT4 MODELS

1A

2B,J

2B,J

3C 3C
3C 2B,J

12J 11J

2B,J

4D 5C,E,J

7F,J 6J

3C

8G,J
6J 7F,J

10 I 9H

8

PARTS FOR BT4 MODELS - CONTINUED

Figure No.
1 2

Description
Single ø Motor Fastener Kit

Construction Material

Kit (1) Grouping Identifier

1/3HP (1.95SF) 1/2HP (1.3SF)

1/2HP (1.90SF) 3/4HP (1.27SF)

Repair Part Order Codes by Motor Size
3/4HP (1.65SF) 1.0HP (1.65SF) 1.5HP (1.47SF) 1.0HP (1.25SF) 1.5HP (1.10SF) 2.0HP (1.10SF)

2.0HP (1.25SF)

3.0HP (1.15SF)

Stainless Steel A
Cast Iron

305374908 305374901

305374903 305374902

305374906 305374904

305374907 305374905

305374909 305374910

305374911 305374912

B

305421901

Stainless Steel

3

Coupling Kit (2)

Cast Iron

4

Pump/Motor Bracket

Stainless Steel Cast Iron

Stainless Steel

5

Mechanical Seal

Cast Iron

Suction/

6

Discharge

Spacers

305421902 C
305421903
305421904 D
305421905
305421906 E
305421907
Not Available as Separate Components, Included in the Hydraulic Overhaul Kit Only

7

O-Ring Set

F

305421908

Stage Assembly

5 GPM

7 GPM

8

10 GPM

G

15 GPM

20 GPM

25 GPM

305404911 305404912 305404913 305404914 305404915 305404916

9

Top Bearing

H

305421909

10 Discharge Head

Pump Shaft

11

(and Shaft

Hardware)

I

305421910

Not Available as Separate Components, Included in the Hydraulic Overhaul Kit Only

12

Pump Shell

Not Available as Separate Components, Included in the Hydraulic Overhaul Kit Only

Hydraulic Overhaul Kit (3)

5 GPM

7 GPM

13

10 GPM

Stainless Steel

J

15 GPM

305422901

305422902 305422905 305422909

305422903 305422906 305422910 305422914

305422904 305422907 305422911 305422915

305422908 305422912 305422916

305422913 305422917

20 GPM

305422918

305422919

305422920

305422921 305422922

25 GPM

Hydraulic Overhaul Kit (3)

5 GPM

7 GPM

13

10 GPM

15 GPM

20 GPM

25 GPM

Cast Iron

305422923

305422924

305422925 305422926

305423901

305423902

305423903

305423904

305423905

305423906

305423907

305423908

305423909

305423910

305423911

305423912

J

305423913

305423914

305423915

305423916

305423917

305423918

305423919

305423920

305423922

305423923

305423924

305423921 305423925

(1) Items with like identifiers are sold/packaged together (2) Coupling Kit ships with Mechanical Seal (3) Hydraulic Overhaul Kit is the combination of Figure Numbers 2, 5, 6, 7, 8, 11, 12

9

AppENdIx 1 - BT4 pERfORMANcE cURVES

5 GpM pERfORMANcE cURVES

7 GpM pERfORMANcE cURVES

METERS FEET METERS FEET

700 200 180 600

160 500
140

120 400

100 300
80

60 200

40 100
20

0

0

0

0

PUMP OPERATING RANGE BEST EFFICIENCY RANGE
5BT1S4
5BT07S4, 5BT1C4 5BT05S4, 5BT07C4 5BT03S4, 5BT05C4

1

2

3

4

5

6

7

8 GPM

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8 M3PH

240 800
220 700
200
180 600
160 500
140
120 400

PUMP OPERATING RANGE BEST EFFICIENCY RANGE
7BT15S4
7BT1S4, 7BT15C4
7BT07S4, 7BT1C4

100 300
80
60 200

7BT05S4, 7BT07C4 7BT03S4, 7BT05C4

40 100
20

0

0

0

1

2

3

4

5

6

7

8

9 10 11 GPM

0

0.5

1.0

1.5

2.0

M3PH

10 GpM pERfORMANcE cURVES

15 GpM pERfORMANcE cURVES

METERS FEET METERS FEET

240 800
220 700
200
180 600

160 500
140

120 400

100 300
80

60 200

40 100
20

0

0

0

0

PUMP OPERATING RANGE BEST EFFICIENCY RANGE
10BT2S4
10BT15S4, 10BT2C4
10BT1S4, 10BT15C4
10BT07S4, 10BT1C4
10BT05S4, 10BT07C4
10BT03S4, 10BT05C4

2

4

6

8

10

12

14

16 GPM

0.5

1.0

1.5

2.0

2.5

3.0

3.5 M3PH

700 200 180 600

PUMP OPERATING RANGE BEST EFFICIENCY RANGE
15BT2S4

160 500
140
120 400
100 300
80
60 200
40 100
20

15BT15S4, 15BT2C4
15BT1S4, 15BT15C4 15BT07S4, 15BT1C4 15BT05S4, 15BT07C4

0

0

0 2 4 6 8 10 12 14 16 18 20 22 GPM

0

1.0

2.0

3.0

4.0

5.0 M3PH

10

AppENdIx 1 cONTINUEd - BT4 pERfORMANcE cURVES

20 GpM pERfORMANcE cURVES

25 GpM pERfORMANcE cURVES

METERS FEET METERS FEET

180 600

160 500
140
120 400

100 300
80
60 200

40 100
20

0

0 0

0

PUMP OPERATING RANGE BEST EFFICIENCY RANGE
20BT3S4, 20BT3C4
20BT2S4 20BT15S4, 20BT2C4
20BT1S4, 20BT15C4 20BT07S4, 20BT1C4 20BT05S4, 20BT07C4

5

10

15

20

25

30 GPM

1

2

3

4

5

6

7 M3PH

PUMP OPERATING RANGE BEST EFFICIENCY RANGE
500

140 25BT3S4, 25BT3C4

120

400

25BT2S4

100 25BT15S4, 25BT2C4
300
80 25BT1S4, 25BT15C4
60 200 25BT07S4, 25BT1C4
40 100
20

0

0

0

0

5

10

15

20

25

30

35

40 GPM

2

4

6

8

M3PH

11

Appendix 2 - friction loss tables

Note: Chart shows friction loss per 100' of pipe. To convert to friction loss per foot, move decimal point two places to the left.

1"

Schedule 40 pipe 1.049 in. i.d. / Type L Copper tube 1.025 in. i.d.

Friction Loss

Ft Hd./

GPM

Velocity Ft Hd./100' of pipe Velocity 100' Pipe

Ft/S

Steel PVC

Ft/S Fric. Loss

C=100 C=140

C=130

2.0

0.74

0.60

0.32

.078

0.41

3.0

1.11

1.26

0.68

1.17

0.87

4.0

1.49

2.14

1.15

1.56

1.48

5.0

1.86

3.24

1.75

1.95

2.23

6.0

2.23

4.54

2.45

2.34

3.13

8.0

2.97

7.73

4.16

3.11

5.35

10

3.71

11.7

6.31

3.89

8.08

12

4.46

16.4

8.85

4.67

11.3

14

5.20

21.8

11.8

5.45

15.0

16

5.94

27.9

15.1

6.22

19.2

18

6.68

34.7

18.7

7.00

23.9

20

7.43

42.1

22.8

7.78

29.0

25

9.29

63.6

34.6

9.74

43.9

30

11.1

89.2

48.1

11.7

61.4

40

14.9

152

82.0

15.5

105

1-1/4"

Schedule 40 pipe 1.380 in. i.d. / Type L Copper tube 1.265 in. i.d.

Friction Loss

Ft Hd./

GPM

Velocity Ft Hd./100' of pipe Velocity 100' Pipe

Ft/S

Steel

PVC

Ft /S Fric. Loss

C=100 C=140

C=130

4.0

0.86

0.56

0.30

1.02

0.52

6.0

1.29

1.20

0.65

1.53

1.12

8.0

1.72

2.04

1.10

2.04

1.92

10

2.15

3.08

1.67

2.55

2.90

12

2.57

4.31

2.33

3.06

4.04

14

2.00

5.73

3.10

3.57

5.35

16

3.43

7.34

3.96

4.08

6.85

18

3.86

9.13

4.93

4.59

8.52

20

4.29

11.1

6.00

5.10

10.4

25

5.36

16.8

9.06

6.38

15.7

30

6.43

23.5

12.7

7.65

22.1

40

8.58

40.0

21.6

10.2

37.6

50

10.7

60.4

32.6

12.8

56.7

60

12.9

84.7

45.6

15.3

79.5

80

17.2

144

77.9

20.4

136

1-1/2"

Schedule 40 pipe 1.610 in. i.d. / Type L Copper tube 1.505 in. i.d.

Friction Loss

Ft Hd./

GPM

Velocity Ft Hd./100' of pipe Velocity 100' Pipe

Ft/S

Steel PVC

Ft/S Fric. Loss

C=100 C=140

C=130

6.0

0.95

0.57

0.31

1.08

0.49

8.0

1.26

0.96

0.52

1.44

0.82

10

1.58

1.45

0.79

1.80

1.24

12

1.89

2.04

1.10

2.16

1.73

15

2.36

2.95

1.59

2.70

2.62

20

3.15

5.24

2.83

3.60

4.46

25

3.94

7.90

4.26

4.51

6.74

30

4.73

11.1

6.00

5.41

9.44

40

6.30

18.9

10.2

7.21

16.1

50

7.88

28.5

15.4

9.01

24.3

60

9.46

40.0

21.6

10.8

34.1

70

11.0

53.2

28.7

12.6

45.5

80

12.6

68.1

36.8

14.4

58.1

90

14.2

84.7

45.7

16.2

72.1

100

15.8

103

56.6

18.0

87.7

2"

Schedule 40 pipe 2.067 in. i.d. / Type L Copper tube 1.985 in. i.d.

Friction Loss

Ft Hd./

GPM

Velocity Ft Hd./100' of pipe Velocity 100' Pipe

Ft/S

Steel PVC

Ft/S Fric. Loss

C=100 C=140

C=130

10

0.96

0.43

0.23

1.07

0.35

15

1.44

0.92

0.50

1.60

.075

20

1.91

1.55

0.84

2.13

1.24

25

2.39

2.35

1.27

2.66

1.87

30

2.87

3.29

1.78

3.19

2.62

40

3.82

5.60

3.03

4.26

4.48

50

4.78

8.46

4.57

5.32

6.76

60

5.74

11.9

6.44

6.39

9.47

70

6.69

15.8

8.53

7.45

12.6

80

7.65

20.2

10.9

8.52

16.2

90

8.61

25.1

13.6

9.58

20.0

100

9.56

30.5

16.5

10.7

24.4

120

11.5

42.7

23.1

12.8

34.1

150

14.3

64.7

35.0

16.0

51.6

200

19.1

110

59.4

21.3

87.8

2.5"

Schedule 40 pipe 2.469 in. i.d. / Type L Copper tube 2.465 in. i.d.

Friction Loss

Ft Hd./

GPM

Velocity Ft Hd./100' of pipe Velocity 100' Pipe

Ft/S

Steel

PVC

Ft /S Fric. Loss

C=100 C=140

C=130

20

1.21

0.66

0.35

1.34

0.40

30

2.01

1.39

0.75

2.02

0.85

40

2.68

2.36

1.27

2.69

1.46

50

3.35

3.56

1.92

3.36

2.20

60

4.02

4.99

2.69

4.03

3.08

70

4.69

6.64

3.58

4.70

4.11

80

5.36

8.50

4.59

5.37

5.25

90

6.03

10.6

5.72

6.04

6.52

100

6.70

12.8

6.90

6.71

7.94

110

7.37

15.3

8.22

7.38

9.44

130

8.71

20.9

11.3

8.73

12.9

150

10.0

27.3

14.7

10.1

16.8

200

13.4

46.3

25.0

13.4

28.6

250

16.8

81.7

44.1

16.8

43.4

300

20.1

98.1

52.9

20.1

61.1

12

Appendix 3 - BT4 Installation Records
To keep an accurate record of your installation, be sure to fill out the data below: Date of Installation: ______________________________ Model No: _____________________________________ Source: ______________________________________ Well_________ Tank/Cistern_________ Municipal Supply_________ Other Pressurized Source__________ (If the source is a well note the well data) Well Data:
Depth of Well (ft.): ____________________________ Depth to Water (ft.): __________________________ Inside diameter of well: _______________________ (If the pump is supplied with water from a pressurized source note the following) Pressurized Source: Incoming Pressure (PSI):_______________ Diameter of Supply Line (in): ____________ Incoming Flow Available (GPM): _________ Suction Pipe Diameter: ____________ Discharge Pipe Diameter: __________ Motor Mfg:_______________________ Motor Mfg Model Number: __________ Motor hp:________________________ Motor Voltage: ____________________ Wire Gauge Size:__________________
13

LIMITED WARRANTY*
THIS WARRANTY SETS FORTH THE COMPANY'S SOLE OBLIGATION AND PURCHASER'S EXCLUSIVE REMEDY FOR DEFECTIVE PRODUCT.
Franklin Electric Company, Inc. and its subsidiaries (hereafter "the Company") warrants that the products accompanied by this warranty are free from defects in material or workmanship of the Company.
The Company has the right to inspect any product returned under warranty to confirm that the product contains a defect in material or workmanship. The Company shall have the sole right to choose whether to repair or replace defective equipment, parts, or components.
The buyer should return the product to the place of purchase for warranty consideration. Subject to the terms and conditions listed below, the Company will repair or replace to the buyer any portion of this product which proves defective due to materials or workmanship of the Company.
The Company will consider products for warranty for 12 months from the date of installation or for 24 months from the date of manufacture, whichever occurs first.
The Company shall IN NO EVENT be responsible or liable for the cost of field labor or other charges incurred by any customer in removing and/or affixing any product, part or component thereof.
The Company reserves the right to change or improve its products or any portions thereof without being obligated to provide such change or improvement to previously sold products.
THIS WARRANTY DOES NOT APPLY TO products damaged by acts of God, including lightning, normal wear and tear, normal maintenance services and the parts used in connection with such service, or any other conditions beyond the control of the Company.
THIS WARRANTY WILL IMMEDIATELY VOID if any of the following conditions are found:
1. Product is used for purposes other than those for which it was designed and manufactured; 2. Product was not installed in accordance with applicable codes, ordinances and good trade practices; 3. Product was not installed by a Franklin Certified Contractor; or 4. Product was damaged as a result of negligence, abuse, accident, misapplication, tampering, alteration, improper
installation, operation, maintenance or storage, nor to an excess of recommended maximums as set forth in the product instructions.
NEITHER SELLER NOR THE COMPANY SHALL BE LIABLE FOR ANY INJURY, LOSS OR DAMAGE, DIRECT, INCIDENTAL OR CONSEQUENTIAL (INCLUDING, BUT NOT LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR LOST PROFITS, LOST SALES, INJURY TO PERSON OR PROPERTY, OR ANY OTHER INCIDENTAL OR CONSEQUENTIAL LOSS), ARISING OUT OF THE USE OR THE INABILITY TO USE THE PRODUCT, AND THE BUYER AGREES THAT NO OTHER REMEDY SHALL BE AVAILABLE TO IT.
THE WARRANTY AND REMEDY DESCRIBED IN THIS LIMITED WARRANTY IS AN EXCLUSIVE WARRANTY AND REMEDY AND IS IN LIEU OF ANY OTHER WARRANTY OR REMEDY, EXPRESS OR IMPLIED, WHICH OTHER WARRANTIES AND REMEDIES ARE HEREBY EXPRESSLY EXCLUDED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, TO THE EXTENT EITHER APPLIES TO A PRODUCT SHALL BE LIMITED IN DURATION TO THE PERIODS OF THE EXPRESSED WARRANTIES GIVEN ABOVE.
DISCLAIMER: Any oral statements about the product made by the seller, the Company, the representatives or any other parties, do not constitute warranties, shall not be relied upon by the buyer, and are not part of the contract for sale. Seller's and the Company's only obligation, and buyer's only remedy, shall be the replacement and/or repair by the Company of the product as described above. Before using, the user shall determine the suitability of the product for his intended use, and user assumes all risk and liability whatsoever in connection therewith.
Some states and countries do not allow the exclusion or limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages, so the above exclusion or limitations may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state and country to country.
*Contact Franklin Electric Co., Inc. Export Division for International Warranty.

106622101 Rev. 3 03/10

400 East Spring Street, Bluffton, IN 46714 Tel: 260.824.2900 Fax: 260.824.2909 www.franklin-electric.com


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