Bristan ST PUMP15TN Mode d’emploi

Installation, Operation & Maintenance

Instructions

Please leave this instruction booklet with the owner as it contains

important guarantee, maintenance and safety information

Read this manual carefully before commencing installation.

This manual covers the following products:

Standard 1.5 bar Twin ended shower pump - ST PUMP15TN

Standard 2.0 bar Twin ended shower pump - ST PUMP20TN

Standard 2.0 bar Single ended shower pump - ST PUMP20SG

FOR POSITIVE HEAD APPLICATIONS ONLY

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PRODUCT DESCRIPTION

Electric motor driven twin ended peripheral pump complete with an automatic control

system, consisting of flow switch and electronic control.

APPLICATION

Bristan pumps are designed for single shower or outlet applications in vented stored

water systems, inlet pressures to the pump and ambient temperatures must not exceed

the values given in the technical specifications.

Bristan Single pumps are not suitable for boosting a single side of a dual flow mixer valve

or tap. Consult Bristan for alternative pump.

zThis pump set must not be used for any other

application without the written consent of Bristan

and in particular, must not be connected directly

to the mains water supply.

zThis appliance can be used by children aged from

8 years and above and persons with reduced

physical, sensory or mental capabilities or lack of

experience and knowledge if they have been

given supervision or instruction concerning use of

the appliance in a safe way and understand the

hazards involved. Children shall not play with the

appliance. Cleaning and user maintenance shall

not be made by children without supervision.

zChildren should be supervised to ensure that they

do not play with the appliance.

Please read installation details carefully as they are intended to ensure this

product provides long, trouble free service. Failure to install the unit in

accordance with the installation instructions will lead to invalidation of the

warranty.

STORAGE

If this product is not to be installed immediately on receipt, ensure that it is stored in a dry,

frost and vibration free location in its original packaging.

CONTENTS Page

Checklist .......................................................................... 3

Important Facts - read before commencing installation ..................................... 4

Location .......................................................................... 5

Pump Connections .................................................................. 9

Electrical Installation ................................................................. 11

Commissioning ..................................................................... 13

Maintenance ....................................................................... 14

Technical Specication ............................................................... 15

Trouble Shooting ................................................................... 16

Guarantee ......................................................................... 17

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Cont ...

CHECKLIST

Your product may vary slightly from the picture above.

Item Description Qty Item Description Qty

Pump 1 Anti-vibration feet 4

Plain Hose & integral washer 4 Inline strainers (not supplied) 2

IMPORTANT: With the pump

removed from its packaging

check for any damage prior to

installation. If any damage is found

contact Bristan immediately.

Fig. 1

15 mm pipework

22 mm outlet pipework to

shower/bathroom

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Cont ...

1 IMPORTANT FACTS: READ BEFORE COMMENCING PUMP INSTALLATION

A. Water storage capacity.

1.11 The hot and cold water storage capacity must be sufficient to meet the flow

rates required by the pumped equipment and any other water using fittings and

appliances, which may be operated simultaneously.

1.12 Ensure the pump is primed as described in the priming section before starting,

damage to the shaft seal will result otherwise. See Section 5 - Commissioning.

B. Water temperature

The water entering the pump must be controlled as follows:

1.13 The maximum allowable water temperature is 65 oC.

1.14 The minimum allowable water temperature is 4 oC.

1.15 DO NOT fit a pump if the hot water is heated via a method whereby the water

temperature cannot be controlled, such as solar or solid fuel you must consult

Bristan.

C. Minimum Flow

1.16 For this pump to operate correctly there must be a minimum gravity flow of at

least 0.8 l/min through the outlet to be pumped.

D. Pipework - General

1.17 Secure pipework: Ensure pipework to and from pump is independently

supported & clipped to prevent forces being transferred to inlet and outlet

branches of pump.

1.18 Flux: Solder joints must be completed and flux residues removed prior to pump

installation (flux damage will void any warranty).

1.19 Pipework design: Care should be taken in the design of pipework runs to

minimize the risk of air locks e.g. use drawn bends rather than 90obends.

1.20 DO NOT introduce solder flux to flexible hoses, pumps or pump parts

manufactured from plastic.

1.21 DO NOT allow contact with oil or cellulose based paints, paint thinners or

strippers, acid based descalents or aggressive cleaning agents.

1.22 DO NOT install a non-return valve, or devices which contain non-return

valves, in the suction (inlet) pipework to the pump. The pump must be

free to vent to the supply tank at all times.

1.23 DO NOT bend the flexible hoses beyond 30o. They must be installed as

straight as possible.

1.24 DO NOT connect this pump to the mains water supply.

E. Plumbing Installation Regulations

1.25 The plumbing installation must comply with the current water and building

regulations.

1.26 The plumbing installation must be installed by a qualified person.

1.27 The electrical installation must be carried out in accordance with the current

national electrical regulations.

1.28 The electrical installation must be installed by a qualified person.

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Cont ...

2 LOCATION - GENERAL

2.11 Access: For emergencies and maintenance the pump must be

easily accessible.

2.12 Protection: The pump must be located in a dry position, frost free

and protected from freezing, particularly when installed in a loft (not

recommended).

2.13 Ventilation: Ensure an adequate air flow to cool the pump. Separate

the pump from other appliances that generate heat. An 80 mm (3 “)

air gap must be maintained around the pump.

2.14 Safety: The motor casing can become very hot under normal

operating conditions. Care must be taken to ensure it cannot be

touched during operation.

2.15 Water retention: Site the pump in a location where in the unlikely

event of a water leak, any spillage is contained or routed to avoid

electrics or areas sensitive to water damage.

2.16 Static inlet pressure: Before deciding where to locate the unit check to ensure

the static inlet head between pump and the bottom of the cold water tank (Fig. 4)

is at least 0.5 metre and does not exceed the max inlet head of 10 metres.

2.17 Ambient temperature: The pump must be sited in a location where the

maximum ambient temperature does not exceed 40 oC.

2.18 Pipework: For optimum performance in new installations pipework must be

22 mm, reducing to 15 mm only when entering the terminal fitting.

If installing in an existing installation 15 mm pipework may be used but will

reduce the pumps performance.

2.19 Static outlet pressure: The static outlet head (Fig. 4) must also be within the

maximum requirement of 10 metres.

2.20 Noise: The anti-vibration mounting feet and flexible hoses which are supplied

as standard, and a precaution to reduce noise transmission, however care must

be taken when mounting the pump that any noise is not amplified through loose

panels or pipework. Do not screw down the pump.

2.21 Direction of flow: Ensure the water inlet supply is

connected to the correct pump ports indicated by

INLET arrow/s detailed on the pump rating label

Fig. 2.

2.22 Flexible hoses: Only use the Bristan hose set supplied with the pump.

2.23 Isolating valves: Separate system isolating valves (full bore) must be fitted to

allow easy pump service (not supplied).

INLET

Fig. 2

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Cont ...

2.24 Preferred pump location: The pump must, for optimum performance, be sited

as close as possible to and never more than 4 metres from the HOT WATER

cylinder. The pump should always be sited BELOW the HOT WATER take-off

from the cylinder. The pump location is also dependent on limitations of

the static inlet and outlet heads of the installation. For guidance on limitations

and recommended location, consult the following relevant section for hot or cold

water installation.

2.25 Non-Preferred Pump Location: The pump must be located with at least

0.5 metre flooded suction at all times.

If it is necessary to position the Pump above the secondary tapping on the hot

cylinder it is fed by, the risk of introducing air will be increased.

To avoid this risk one of the two following solutions must be adopted:

The use of a Stuart Top Entry (TE) cylinder flange.

The use of a Stuart Side Entry (SE) cylinder flange, which should have the

addition of an inverted loop (“U” bend) of 350 mm minimum drop before rising

to the pump, located as close as possible to the cylinder wall. This will

ensure the pump receives an air free supply and the cylinder vents any air up the

vent pipe and not the pump feed (Fig. 3).

Max. static inlet pressure 10 m

Min. static inlet pressure 0.5 m

350 mm

min.

200 mm

min.

Least preferred area

Fig. 3

hot water

services

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Cont ...

2 LOCATION - TWIN PUMP

2 LOCATION - SINGLE PUMP

Cold water connection:

2.26 The cold water supply: Must be a DEDICATED AIR FREE supply via a

tank connector, and must be positioned at a slightly lower level (25 mm

minimum) than the feed pipe to the hot water cylinder.

Do not connect to the mains.

Hot water connection:

2.27 Hot water supply: The pump must be supplied with a dedicated feed direct

from the hot water cylinder or storage tank, ensuring an air free connection to the

pump. We recommend the use of either the side entry Stuart flange (SE) Part

No 27900 or the top entry Stuart flange (TE) Part No 27800 see Fig. 5.

2.28 Expansion pipe: When the method of connection is to be made via the

expansion pipe, the BASE of the cold water storage tank MUST be at least

1 metre above the connection/take off of the hot water storage cylinder feeding

the pump.

Fig. 4

Static inlet pressure

Max. 10 m

Min. 0.5 m

Outlet head must be

below bottom of cold

water tank and able

to pass a minimum

of 0.8 l/min of gravity

flow

Fig. 4

Static inlet pressure

Max. 10 m

Min. 0.5 m

Outlet head must be

below bottom of cold

water tank and able

to pass a minimum

of 0.8 l/min of gravity

flow

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Cont ...

Fig. 5

G 1 Stuart Flange

(Part No. 27800)

with 22 mm

pipework to pump

reducing to

15 mm.

Off expansion

pipe with rising

22 mm offset

and 22 mm

pipework to

pump reducing

15 mm.

Off vertical

expansion pipe

with 22 mm

pipework to pump.

Site installed G 1

tank flange with

22 mm pipework

to pump reducing

to 15 mm.

Factory installed G ¾

secondary tapping

with 22 mm pipework

to pump.

Side mounted

Techflange with 22

mm pipework to pump

reducing to 15 mm.

Alternative

connection with

pump being the

first tee on the

supply line.

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Cont ...

3 PUMP CONNECTIONS

zDo not use stainless steel, chrome or nickel plated pipe with

the flexible hose push-in plumbing connections.

zDo not introduce solder flux into the joint or surrounding area

as connectors will be attacked and may fail.

All solder joints should be completed and flux residues removed

before final connection to push-in connections, on the flexible

hose.

zDo not allow contact with oil or cellulose based paints, paint

thinners or strippers, acid based descalents or aggressive

cleaning agents.

zNever operate pump with inlet and/or outlet isolating valves in

the closed position. Damage will occur!

3.11 Hose to pump: The pump inlet and outlet ports have moulded fittings which

are specifically designed for connection to the G ¾ female running nuts on the

flexible hoses. The hose end running nut is fitted with a rubber sealing washer

which is held captive within the nut assembly. Locate the hose into position and

screw the nut fully onto the fitting by hand. Finally nip tight with pliers (4/5 Nm)

for a water tight seal (do not overtighten).

Flexible hose

G ¾ running nut

assembly

Rubber sealing

washer (captive in

nut assembly)

Port fitting

Fig. 6

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3.12 Hose to pipework:

1. The hoses are fitted with plastic push-in connectors, which must only be

connected with the following:

a) 15 mm diameter copper pipe to BS EN 1057 - R250 (half hard) - Table 3.

b) 15 mm plastic pipe to BS 7291 part 1 and part 2 (Table 1), or part 3

(Table 1) plus internal support sleeve*.

* The internal bore of the plastic pipe must be supported against collapse

with the pipe manufacturers recommended support sleeve (pipe insert).

c) Appropriate plumbing fittings that are compatible and will provide a water

tight connection.

Ensure the pipe is free from all score marks and deformities in the area of the

insertion depth (Fig. 7) and cut the pipe square removing all burrs and sharp

edges to prevent damage to the sealing ‘O’-ring.

2. Prior to inserting pipe into fitting mark

the insertion depth on the wall of the

pipe with a soft pencil at a distance of

31 mm from the end to be inserted

(Fig. 7).

3. Check in the mouth of the

fitting that the ‘O’-ring, nylon

washer and collet are in

position as shown in Fig. 8.

4. Push pipe firmly into fitting,

until pencil mark is level with

the top of the collet and the

pipe stop resistance is felt.

Pull on pipe to check it is

secure and correctly fitted.

5. To release the joint, push pipe firmly into fitting, hold collet down and gently

remove pipe. If the system has been filled with water care should be taken to

isolate pump and towels used to absorb spilled water.

If you have any concern either about using push-in fittings or should the joint

leak on final test, isolate the water supplies and contact Bristan Helpline on

0844 701 6273.

Fig. 7

15 mm Pipe

Pencil

Mark

Insert Depth

31 mm

Fig. 8

Collet

Washer

‘O’-Ring

Flexible Hose

Pipe Stop

Ce manuel convient aux modèles suivants

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