Table of Contents
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Installation, Operation & Maintenance
Instructions
Please leave this instruction booklet with the home owner as it contains important
guarantee, maintenance and safety information.
Read this manual carefully before commencing installation.
This manual covers the following products:
Standard 2.0 bar Single
Pt. No. ST PUMP 20SG
Please note images are representative only and may not portray
Standard 1.5 bar Twin
Pt. No. ST PUMP 15TN
Standard 2.0 bar Twin
Pt. No. ST PUMP 20TN
FOR POSITIVE HEAD APPLICATIONS
your model
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Table of Contents
Related Manuals for Bristan ST PUMP 20SG
Summary of Contents for Bristan ST PUMP 20SG
- Page 1 Read this manual carefully before commencing installation. This manual covers the following products: Standard 2.0 bar Single Standard 1.5 bar Twin Pt. No. ST PUMP 20SG Pt. No. ST PUMP 15TN Standard 2.0 bar Twin Pt. No. ST PUMP 20TN...
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Page 2: Table Of Contents
CONTENTS 1 PRODUCT OVERVIEW ..................1 2 WARNINGS ......................2 3 CHECKLIST ......................4 4 IMPORTANT FACTS - READ BEFORE COMMENCING PUMP INSTALLATION ..5 5 LOCATION - GENERAL ..................7 6 PUMP CONNECTIONS ..................12 7 ELECTRICAL INSTALLATION ................18 8 COMMISSIONING ..................... -
Page 3: Product Overview
Inlet pressures to the pump and ambient temperatures must not exceed the values given in the technical specifications. Bristan shower Single pumps are not suitable for boosting a single side of a dual flow mixer valve or tap. Consult Bristan for an alternative pump. 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. -
Page 4: Warnings
This may be part of a consumer unit or a separate unit. • Maximum head (closed valve) ST PUMP 15TN - 15 metres, ST PUMP 20TN - 20 metres & ST PUMP 20SG - 20 metres. • Before starting work on the electrical supply ensure power supply is isolated. - Page 5 • If the supply cord is damaged, it must be replaced by Bristan Ltd or by one of their approved repairers, or similarly qualified persons in order to avoid a hazard. Please read installation details carefully as they are intended to ensure this product provides long, trouble free service.
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Page 6: Checklist
CHECKLIST IMPORTANT: With the pump removed from its packaging check for any damage prior to installation. If any damage is found contact Bristan Ltd within 24 hours of receipt. Figure 1 Note: This image is for reference only. Item Description Pump ISO hose &... -
Page 7: Important Facts - Read Before Commencing Pump Installation
• 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 the Bristan Care helpline on 0300 026 6273. Minimum Flow For this pump to operate correctly there must be a minimum gravity flow of at least 0.8 l/min through all outlets to be pumped. - Page 8 Plumbing Installation Regulations The plumbing installation must comply with the current water and building regulations. The plumbing installation must be installed by a qualified person.
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Page 9: Location - General
• Direction of flow: Ensure the water flow is in the direction of the arrow that is marked on the flow switch reed clamp (vertically upwards). • Flexible hoses: Only use the Bristan hose set supplied with the pump. • Isolating valves: Separate system isolating valves (non restrictive) must be fitted to allow easy pump service. - Page 10 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.
- Page 11 Non-Preferred Pump Location 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 Top Entry cylinder flange.
- Page 12 Figure 5 Twin Pump...
- Page 13 Cold Water Connection 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. Ensure that the pipework size from the cold water tank is 22mm minimum. Do not connect to the mains.
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Page 14: Pump Connections
PUMP CONNECTIONS • Do not use stainless steel, chrome or nickel plated pipe with the flexible hose push-in plumbing connections. • Do not introduce solder flux into the joint or surrounding area as connectors will be attacked and will fail. •... - Page 15 Flexible Inlet and Outlet Hoses The pump inlet and outlet ports are threaded G ¾ M. These ports are provided with a flat sealing face suitable for use with an appropriately sized flat faced fitting and fibre or rubber washer. Ensure a water tight seal is achieved when the pump is both stationary and running.
- Page 16 Hose to Pump The pump inlet and outlet ports have 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.
- Page 17 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*.
- Page 18 2. Check in the mouth of the fitting that the ‘O’-ring, nylon washer and collet are in position as shown in Figure 10. Collet Washer O-ring Flexible hose Pipe stop Figure 10 3. Push the pipe firmly into the fitting, until pencil mark is level with the top of the collet and the pipe stop resistance is felt.
- Page 19 Sealing washer (sometimes captured in fitting) Figure 11 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 Care helpline on 0300 026 6273.
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Page 20: Electrical Installation
ELECTRICAL INSTALLATION • Regulations: The electrical installation must be carried out in accordance with the current national electrical regulations and installed by a qualified person. • Safety: In the interests of electrical safety a 30 mA residual current device (R.C.D. not supplied) should be installed in the supply circuit. - Page 21 • Connections: The pump must be permanently connected to the fixed wiring of the mains supply using the factory fitted supply cord, via a double pole switched fused spur off the ring main and NOT connected to the boiler or the immersion heater circuits.
- Page 22 Wiring of Connection Unit WARNING: This appliance must be earthed. The wires in the mains lead (supply cord) are coloured in accordance with the following code: • Green and Yellow: Earth • Blue: Neutral • Brown: Live As the colours of the wires in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your connection unit proceed as follows: •...
- Page 23 Supply Cord Replacement If the supply cord is damaged, it must be replaced by Bristan Ltd or by one of their approved repairers, or similarly qualified persons in order to avoid a hazard. Supply Cord Extension The pumps are fitted with a supply cord to the following specification: All models - HO5VV-F3 G 0.75 mm²...
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Page 24: Commissioning
Carefully check pump and pipework for leaks whilst pump running and stationary before leaving the installation unattended. For Further Technical Support: Phone the Bristan Care team on 0300 026 6273. Our staff are trained to help and advise you over the phone. -
Page 25: Maintenance
The system should be flushed to remove all chemicals before the pump is re-connected. If in any doubt as to the suitability of the chemical solutions, please contact our Bristan Care helpline on 0300 026 6273. No other routine maintenance is required. -
Page 26: Technical Specification (Single Models)
TECHNICAL SPECIFICATION (SINGLE MODELS) Pump Model 2.0 bar Single 44437 General Guarantee 3 years Approvals UKCA, CE Features Pump type Peripheral Pump control Flow switch Anti-vibration feet Flexible hoses Dry run protection Typical noise 56 dB(A) Maximum head - closed valve 2.0 bar (20 metres) Performance Performance @ 9 l/min... -
Page 27: Technical Specification (Twin Models)
TECHNICAL SPECIFICATION (TWIN MODELS) Pump Model 1.5 bar Twin 2.0 bar Twin 44435 44436 General Guarantee 3 years Approvals UKCA, CE Features Pump type Peripheral Pump control Flow switch Anti-vibration feet Flexible hoses Dry run protection Typical noise 57 dB(A) 57 dB(A) - Page 28 Bristan reserve the right to amend the specification in line with its policy of continuous development of its products. Note: For information on other voltages/frequencies which are not shown, consult Bristan Care helpline on 0300 026 6273. *Note: The maximum pressure that can be applied to the pump under any installation conditions.
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Page 29: Trouble Shooting Guide
Check fuse (see fuse section) Check circuit breaker is set Check wiring connections Pump jammed If motor ‘buzzes’ switch off power and contact Bristan Integral motor Wait for thermotrip to auto-reset and check thermotrip that duty point and run time is within... - Page 30 If pump continues to run, this indicates a closed circuit in either the flow switch reed switch or P.C.B. or P.C.B. in the terminal box Contact Bristan Jammed flow Remove outlet hoses and check that flow switch switch sits in lowest position...
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Page 32: Declaration Of Conformity
RG9 2AD ENGLAND. Engineering Manager Signed .................... Stuart Turner are an approved company to BS EN ISO 9001:2015 Bristan Group Limited, Birch Coppice Business Park, Dordon, Tamworth, Staffordshire B78 1SG ENGLAND Tel: 0844 701 6274 Fax: 0844 701 6275 email: enquire@bristan.com web: www.bristan.com...
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