Wilo Sub TWI 4 Bedienungsanleitung

Wilo TWI - 4”, 6”, 8”, 10” Models

Installation and Operating Instructions

Read this Owner’s Manual thoroughly before

operating the equipment. Keep it with the

equipment at all times. Replacements are available.

WILO USA LLC

1290 N 25th Ave

Melrose Park, IL 60160

Toll Free - 866-945-6872

Fax - 708-338-9455

Web - www.wilo-usa.com

WILO USA LLC 1290 N 25th Ave Melrose Park, IL 60160 Toll Free - 866-945-6872 Fax - 708-338-9455 Web - www.wilo-usa.com

Contents:

1 General Information

1.1 Uses

1.2 Technical characteristics

2 Safety

3 Transport and interim storage

4 Product and accessory description

4.1 Description

4.2 Pump

4.3 Motor

4.4 Accessories

5 Assembly / Installation

5.1 Assembly

5.2 Hydraulic connection

5.3 Electrical connection

6 Operation

6.1 Controlling the direction of rotation:

6.2 Operation

7 Maintenance

8 Problems, Causes and Solutions

WILO USA LLC 1290 N 25th Ave Melrose Park, IL 60160 Toll Free - 866-945-6872 Fax - 708-338-9455 Web - www.wilo-usa.com

1 General Information

Installation and service by qualified personnel only!

1.1.Uses

Submersible pumps of theTWI series are suitable for drawing groundwater from deep

wells, for industrial use and for supplying water.

1.2 Product data

1.2.1Rating plate

1.2.2Technical characteristics

Temperature range: +37 °F(3

°C) to +86 °F(30

°C)

Max. Flow rate: 1320 [gpm]

Max. immersion depth: 1148 ft

Maximum permissible sand content 50 g/m3

Pressure pipe connection:2" to 6", depending on size of pump

Max. pump lift: 650 ft to 1300 ft, depending on size of pump

2 Safety

These instructions contain important information which must be followed when installing

and operating the pump. These operating instructions must therefore be read before

assembly and commissioning by the installer and the responsible operator. Both the

general safety instructions in the “Safety precautions” section and those in subsequent

sections indicated by danger symbols should be carefully observed.

2.1 Danger symbols used in these operating instructions

Safety precautions in these operating instructions which, if not followed, could cause

personal injury are indicated by the symbol:

when warning of electrical voltage with

The following symbol is used to indicate that by ignoring the relevant safety instructions,

damage could be caused to the pump/machinery and its functions:

ATTENTION!

2.2 Staff training

The personnel installing the pump must have the appropriate qualifications for this

work.

Sub Pump - TWI4.05-26

Wilo SS Submersible

(Tauchpumpen Wilo Inox)

Sub End - Pump End Only

Sub Pump - Complete Unit

Sub Mtr - Subersible Motor

(Only for Navision Entry)

Pump Dia. (inches)

Flow in USGPM

# of Stages

WILO USA LLC 1290 N 25th Ave Melrose Park, IL 60160 Toll Free - 866-945-6872 Fax - 708-338-9455 Web - www.wilo-usa.com

2.3 Risks incurred by failure to comply with the safety precautions

Failure to comply with the safety precautions could result in personal injury or damage

to the pump or installation. Failure to comply with the safety precautions could also

invalidate any claims for damages.

In particular, lack of care may lead to problems such as:

Failure of important pump or machinery functions,

Personal injury due to electrical, mechanical and bacteriological causes.

Damage to property.

2.4 Safety precautions for the operator

Existing regulations for the prevention of accidents must be followed.

Dangers caused by electrical energy are to be excluded. Directives issued by the local

electrical code and the local electricity supply companies are to be observed.

2.5 Safety information for inspection and assembly

The operator must ensure that all inspection and installation work is carried out by

authorised and qualified specialists who have carefully studied these instructions.

Work on the pump/machinery should only be carried out when the machine has been

brought to a standstill.

2.6 Unauthorized modification and manufacture of spare parts

Alterations to the pump or installation may only be carried out with the manufacturer's

consent. The use of original spare parts and accessories authorised by the

manufacturer will ensure safety. The use of any other parts may invalidate claims

invoking the liability of the manufacturer for any consequences.

2.7 Unauthorized operating methods

The operating safety of the pump or installation supplied can only be guaranteed if it is

used in accordance with paragraph 1 of the operating instructions. The limiting values

given in the catalogue or data sheet must neither be exceeded nor allowed to fall below

those specified.

3 Transport and interim storage

Upon delivery, please check that the device has survived the journey undamaged. If

you find any damage, the normal routine measures are to be initiated with the shipping

company.

ATTENTION! During transport and in storage the pump must be protected against

moisture, frost and mechanical damage. Store horizontally in shockproof

places.

4 Product and accessory description

4.1.Description (see fig. 1)

1 Pump Wilo-TWI 4"/6"/8"/10” 9 Mains connection/power supply

2 Immerson electrode mass 10 Manometer

3 Low-water immerson electrode (off) 11 Pressure vessel/reservoir

4 Immerson electrode upper level (on) 12 Shut-off valve

5 Connecting extension cable 13 Non-return valve

6 Dynamic level (pump running) 14 Motor connecting cable

7 Static level (pump switched off) 15 Cable connection between pos. 14 and pos. 5

8 Switch box (with dry-run protection)

WILO USA LLC 1290 N 25th Ave Melrose Park, IL 60160 Toll Free - 866-945-6872 Fax - 708-338-9455 Web - www.wilo-usa.com

4.2.Pump

Multistage submersible pump with radial or semi-axial impellers, depending on size of

pump,forusein4",6“,8”10" bore- holes.

with built-in check valve.

4.3.Motor

Consult motor manufacturer’s documentation for more information.

4.4.Accessories

Accessories must be ordered separately.

Switching/controlling equipment (motor protection + pump control)

assembly sensor assembly pressure reducer float-

shut-off valves manometer safety valve dry-run

electrodes float switch motor cable as assembly (incl.

plug) heat-shrink cable connections steel cable (stainless steel)

pressure vessel cooling-shroud (stainless steel/PVC) 

etc.

5 Assembly / Installation

The pump can be operated either vertically or horizontally (for horizontal position only

with a cooling-shroud).

WILO USA LLC 1290 N 25th Ave Melrose Park, IL 60160 Toll Free - 866-945-6872 Fax - 708-338-9455 Web - www.wilo-usa.com

5.1 Assembly

The bore-holes or pump stations must be created/arranged in accordance with the

generally applicable technical rules.

Please ensure that the flow of water in the bore-hole or well is sufficient for the

capacity of the pump.

The pump is carefully lowered using a double-purchase pulley on the suspension

rope and tripod/crane, heavy pumps using a rope winch.

Ensure that the pump never runs dry and make sure that even in dry periods the

water level never falls below the pump’s check valve (uppermost position).

ATTENTION! In the case of installation in a deep well (well shaft diameter greater than

a bore-hole), a reservoir, horizontal installation or in a deep well, a

cooling-shroud (accessory) must be fitted to the unit to ensure the motor

is properly cooled (fig. 2, pos. A).

It must be ensured that the well shaft in the bore-hole has a constant internal

diameter to allow the pump to be lowered freely for the entire depth of the shaft.

Never raise or lower the pump by the electric cable.

The electrical connection and extension of the motor cable must take place before

the pump is lowered and be tested/measured to ensure they are working.

The final installation position must be guaranteed such that the pump sits at least 1

foot above the bottom of the bore-hole or well (fig. 1).

The rating plate must be affixed in the immediate vicinity of the well head to allow

access at all times to the unit’s technical data.

Before lowering (and while lowering in deep bore-holes) the insulation resistance of

the motor and cable must be measured several times (min. 2 M).

5.2 Hydraulic connections (see fig. 1)

Connections to steel threaded pipes: 2" or 2 ½" , 3", 4" , 5", 6" depending on size of

pump.

If flexible pipework is used, the pump must be held by a chain/steel cable. The two

steel loops on the pump head are to be used for this.

WILO USA LLC 1290 N 25th Ave Melrose Park, IL 60160 Toll Free - 866-945-6872 Fax - 708-338-9455 Web - www.wilo-usa.com

In the case of larger types (8" / 10"), the pump is only connected directly to the

pipework.

It is recommended that a check valve be fitted on the pressure side of the pump

(between the ascending pipe in the bore-hole and the above-ground pipe installation)

at the well head.

A manometer, pressure switch/gauge and a shut-off valve are to be installed at the

head of the bore-hole/well.

5.3 Electrical connection

Electrical work must be carried out by a qualified and licensed electrician in

strict compliance with local regulations.

The maximum cable length depends on the nominal motor current and the

permissible drop in voltage over the entire cable length. Consult motor

manufacturer’s documentation for more information.

WILO USA LLC 1290 N 25th Ave Melrose Park, IL 60160 Toll Free - 866-945-6872 Fax - 708-338-9455 Web - www.wilo-usa.com

ATTENTION! A faulty electrical connection will result in damage to the motor.

6. Operation

6.1 Controlling the direction of rotation:

To determine the correct direction of rotation for the pump, only the shutoff pressure at

the well head needs to be checked, taking into account that the correct motor direction

of rotation generates the greater pressure.

To rectify an incorrect direction of rotation swap any two phases in the switchbox or

motor protection switch. See motor manufacturer’s documentation for more

information.

6.2 Operation

ATTENTION! The pump must never run while dry, not even for brief periods.

ATTENTION! Please note that not respecting this information may lead to premature

motor failure and or reduced life expectancy!

7 Maintenance

Before carrying out any maintenance work, switch off the pump and ensure

that it cannot be switched on again by unauthorized people. Never carry out

work on a running pump.

No special maintenance is required during normal operation.

7.1 Spare parts

Please contact Wilo Customer Service directly for spare parts, standard replacements

or repairs to the hydraulic pump parts.

WILO USA LLC 1290 N 25th Ave Melrose Park, IL 60160 Toll Free - 866-945-6872 Fax - 708-338-9455 Web - www.wilo-usa.com

8 Problems, Causes and Solutions

Problems Causes Solutions

The motor does not

run Consult motor manufacturer’s documentation

for trouble shooting tips.

No or insufficient

capacity a)Voltage too low

b)Suction filter blocked

c)Incorrect motor direction of rotation

d)Low-water protection or water level

in well too low

a)Check electrical power supply at

switchgear.

b)Lift pump out of bore-hole, clean suction

filter.

c) Swap any two phases in the switchgear.

d)Check water level in bore-hole/well; it must

be at least 8” (20” if 8’’ motor) above the

pump pressure-pipe connection (during

operation).

Pump switches on too

frequently a)Insufficient switching difference

between on/off pressure in pressure

switch/gauge

b)Incorrect arrangement of immerson

electrodes.

c)Storage volume of diaphragm

pressure vessel too small or

prepressure setting too low

a)Increase difference between on and off

points

b)Increase gaps between immerson

electrodes and thus regulate switching

times.

c) Check switching pressure settings and

reset

Check vessel prepressure (no water in

vessel)

Provide additional pressure vessel or

install tank with greater nominal volume.

If the fault cannot be remedied, please contact WILO customer services.

Subject to technical alterations!

WILO USA LLC 1290 N 25th Ave Melrose Park, IL 60160 Toll Free - 866-945-6872 Fax - 708-338-9455 Web - www.wilo-usa.com

Fig. 1

Refer to clause 4.1

Andere Handbücher für Sub TWI 4

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