Grundfos Tp User manual

TP, TPD

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

English (GB)

2

English (GB) Installation and operating instructions

Original installation and operating instructions

CONTENTS Page

1. Symbols used in this document

2. General information

These instructions apply to the pump types TP and

TPD fitted with Grundfos motors. If the pump is fitted

with another motor make, please note that the motor

data may differ from the data stated in these

instructions.

1. Symbols used in this document 2

2. General information 2

3. Delivery and handling 3

3.1 Delivery 3

3.2 Handling 3

4. Applications 4

4.1 Pumped liquids 4

5. Installation 4

5.1 Pipework 6

5.2 Elimination of noise and vibrations 6

5.3 Foundation 7

5.4 Terminal box positions 8

5.5 Base plate 8

5.6 Insulation 8

5.7 Frost protection 8

6. Electrical connection 9

6.1 Frequency converter operation 9

7. Startup 10

7.1 Flushing the pipe system 10

7.2 Priming 10

7.3 Checking the direction of rotation 10

7.4 Starting 11

7.5 Shaft seal run-in 11

7.6 Frequency of starts and stops 11

8. Maintenance and service 11

8.1 Pump 11

8.2 Motor 12

8.3 Service 12

8.4 Adjusting the shaft 12

8.5 Blanking flanges 13

9. Technical data 13

9.1 Ambient temperature 13

9.2 Liquid temperature 13

9.3 Operating pressure/test pressure 13

9.4 Inlet pressure 13

9.5 Enclosure class 13

9.6 Electrical data 13

9.7 Sound pressure level 13

9.8 Environment 13

10. Fault finding the product 14

11. Disposal 15

Warning

Prior to installation, read these installation

and operating instructions. Installation and

operation must comply with local

regulations and accepted codes of good

practice.

Warning

If these safety instructions are not

observed, it may result in personal injury.

Caution

If these safety instructions are not

observed, it may result in malfunction or

damage to the equipment.

Note

Notes or instructions that make the job

easier and ensure safe operation.

English (GB)

3

3. Delivery and handling

3.1 Delivery

The pump is delivered from the factory in a carton

with a wooden bottom, which is specially designed

for transport by fork-lift truck or a similar vehicle.

3.2 Handling

Pumps without lifting eyes must be lifted by means of

nylon straps. See figures 1and 2.

Fig. 1 TP

Fig. 2 TPD

Pumps with lifting eyes must be lifted by means of

nylon straps and shackles. See figures 3and 4.

Fig. 3 TP

Fig. 4 TPD

Warning

The lifting eyes fitted to large pump motors

can be used for lifting the pump head

(motor, motor stool and impeller). The

lifting eyes must not be used for lifting the

entire pump.

TPD:

The centrally positioned thread of the

pump housing must not be used for lifting

purposes as the thread is placed below the

centre of gravity of the pump.

TM02 7007 2303TM02 7008 2303

TM02 7009 2303TM02 7010 2303

English (GB)

4

4. Applications

The pumps are designed to circulate hot or cold

water in residential, institutional and industrial

applications in systems, such as:

• heating systems

• district heating plants

• central heating systems for blocks of flats

• air-conditioning systems

• cooling systems.

In addition, the pump range is used for liquid transfer

and water supply in systems such as:

• washing systems

• domestic hot water systems

• industrial systems in general.

To ensure optimum operation, the dimensioning

range of the system must fall within the performance

range of the pump.

4.1 Pumped liquids

Thin, clean, non-aggressive and non-explosive

liquids, not containing solid particles or fibres that

may attack the pump mechanically or chemically.

Examples:

• Central heating system water (the water must

meet the requirements of accepted standards on

water quality in heating systems)

• cooling liquids

• domestic hot water

• industrial liquids

• softened water.

The pumping of liquids with a density and/or

kinematic viscosity higher than that of water will have

the following effects:

• a considerable pressure drop

• a drop in hydraulic performance

• a rise in power consumption.

In such cases, the pump must be fitted with a bigger

motor. If in doubt, contact Grundfos.

The EPDM O-rings fitted as standard are primarily

suitable for water.

If the water contains mineral/synthetic oils or

chemicals or if other liquids than water are pumped,

the O-rings must be chosen accordingly.

5. Installation

The pump must be sited in a dry, well ventilated, but

frost-free position.

When installing pumps with oval bolt holes in the

pump flange (PN 6/10), use washers as shown in fig.

5.

Fig. 5 Use of washers for oval bolt holes

Arrows on the pump housing show the direction of

flow of liquid through the pump.

Pumps with motors smaller than 11 kW can be

installed in horizontal or vertical pipework.

Pumps with motors of 11 kW and up may only be

installed in horizontal pipework with the motor in

vertical position.

However, some TP, TPE pumps of 11 kW and up

may be suspended directly in the pipes (horizontally

or vertically). See the table TP, TPE pumps from 11

kW and up suspended in the pipes on page 29.

In installations where the pump is suspended directly

in the pipes, the pump can support the pipe length L

on both sides of the pump (L less than 3 x DN). See

fig. 6. In installations where the pump is suspended

directly in the pipes, the pump must be lifted and

held in correct position by means of ropes or similar

until both pump flanges are completely fastened to

the pipe flanges.

Fig. 6 Pump suspended directly in the pipes

Warning

When pumping hot or cold liquids, make

sure that persons cannot accidentally

come into contact with hot or cold

surfaces.

TM01 0683 1997TM06 3518 0615

Installation

Washer Pump

Horizontal pipe

Vertical pipe

L

English (GB)

5

For inspection and motor/pump head removal, the

following clearance is required above the motor:

• 300 mm for motors up to and including 4.0 kW.

• 1 m for motors of 5.5 kW and up.

See fig. 7.

Fig. 7 Required clearance above the motor

Twin-head pumps installed in horizontal pipes must

be fitted with an automatic air vent in the upper part

of the pump housing. See fig. 8. The automatic air

vent is not supplied with the pump.

Fig. 8 Automatic air vent

If the liquid temperature falls below the ambient

temperature, condensation may form in the motor

during inactivity. In this case, make sure that the

drain hole in the motor flange is open and points

downwards. See fig. 9.

Fig. 9 Drain hole in motor flange

If twin-head pumps are used for pumping liquids with

a temperature below 0 °C / 32 °F, condensed water

may freeze and cause the coupling to get stuck. The

problem can be remedied by installing heating

elements. Whenever possible (pumps with motors

smaller than 11 kW), the pump must be installed with

the motor shaft in horizontal position. See fig. 8.

Caution

The motor must never fall below the

horizontal plane.

TM00 3733 2802TM03 8127 0507

5.5 - kW0.25 - 4.0 kW

1 m

300 mm

0.25 - 4.0 kW 5.5 kW and up

TM00 9831 4715

Caution

The technical data in section 9. Technical

data must be observed.

Drain hole

English (GB)

6

5.1 Pipework

Fit isolating valves on either side of the pump to

avoid draining the system if the pump needs to be

cleaned or repaired.

The pump is suitable for pipeline mounting, provided

that the pipework is adequately supported either side

of the pump. TP 25-50, 25-80, 25-90, 32-50, 32-80,

32-90, 40-50, 40-80 and 40-90 are designed for

pipeline mounting only.

When installing the pipes, make sure that the pump

housing is not stressed by the pipework.

The inlet and outlet pipes must be of an adequate

size, taking the pump inlet pressure into account.

To avoid sediment build-up, do not fit the pump at the

lowest point of the system.

Install the pipes so that air locks are avoided,

especially on the inlet side of the pump. See fig. 10.

Fig. 10 Correct pipework on the inlet side of the

pump

If there is any danger of the pump running against a

closed outlet valve, ensure a minimum liquid flow

through the pump by connecting a bypass/a drain to

the outlet pipe. The drain can for instance be

connected to a tank. A minimum flow rate equal to 10

% of the flow rate at maximum efficiency is needed

at all times.

Flow rate and head at maximum efficiency are stated

on the pump nameplate.

5.2 Elimination of noise and vibrations

In order to achieve optimum operation and minimum

noise and vibration, consider vibration damping of

the pump. Generally, always consider this for pumps

with motors of 11 kW and up, but for motors of 90 kW

and up as well as the pumps stated in the table

below, vibration damping is mandatory:

Smaller motor sizes, however, may also cause

undesirable noise and vibration.

Noise and vibration are generated by the revolutions

of the motor and pump and by the flow in pipes and

fittings. The effect on the environment is subjective

and depends on correct installation and the state of

the remaining system.

Elimination of noise and vibrations is best achieved

by means of a concrete foundation, vibration

dampers and expansion joints.

Fig. 11 Foundation for TP pump

TM00 2263 0195

Caution

The pump is not allowed to run against a

closed outlet valve as this will cause an

increase in temperature/formation of

steam in the pump which may cause

damage to the pump.

Pump type P2

[kW] Frequency

[Hz]

TP 200-280/4 37 60

TP 200-290/4 37 50

TP 200-320/4 45 60

TP 200-360/4 55 60

TP 200-390/4 75 60

TM02 4993 3202

Pos. Description

A Expansion joint

B Concrete pedestal

C Vibration damper

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