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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: U2.3 bar Twin U2.3 bar Single Pt.
APPLICATION Techflo qt pumps are suitable for positive or negative head installation conditions. The pumps are designed for whole house pressure boosting applications in vented stored water systems. Inlet pressures to the pump and ambient temperatures must not exceed the values given in the technical specifications.
22 mm inlet pipework packaging check for any damage prior to installation. If any damage is found contact Stuart Turner Ltd 22 mm isolation valve within 24 hours of receipt. (non restrictive) (not supplied). To allow easy service...
PRE-INSTALLATION ASSEMBLY The pump as supplied requires some installer assembly. 1. Remove the two red transportation caps by unscrewing; these can be discarded (Fig. 2). 2. Check to ensure the ‘O’-rings are in position inside the large plastic nut on the top of the pump.
1 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.
Do not screw down the pump. 2.22 Flexible hoses: Use only Stuart Turner supplied hoses. 2.23 Isolating valves: Separate isolating valves (non restrictive) must be fitted to allow easy pump service.
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2 LOCATION - SINGLE PUMP Positive Duty Single Pump System Fig. 4 2.25 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.
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2 LOCATION - TWIN PUMP Positive Duty Twin Pump System Fig. 5 2.26 Hot water cylinder or storage tank: When a hot water cylinder or storage tank is used, ensure the pipework size from the cold water storage to the hot water storage is of adequate size and a minimum of 22 mm.
3 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 may fail and void warranty. All solder joints should be completed and flux residues removed before final connection to push-in connections, on the flexible hose.
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3. Check in the mouth of the fitting that ‘O’-ring, nylon washer and collet are in position. Collet Body Washer ‘O’-Ring Pipe Stop Hose Isolating Valve 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.
4 ELECTRICAL INSTALLATION / EARTHING 4.11 Regulations: The electrical installation must be carried out in accordance with the current national electrical regulations and installed by a qualified person. 4.12 Safety: In the interests of electrical safety a 30 mA residual current device (R.C.D.
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The wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured black. The wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red. 4.21 Fuses: The following fuse size should be used with the appropriate pump: Model Fuse Size (AMPS)
Carefully check pump and pipework for leaks whilst pump running and stationary before leaving the installation unattended. 5.14 For Further Technical Support: Phone the Stuart Turner PumpAssist team on 0844 98 000 97. Our staff are trained to help and advise you over the phone.
6 MAINTENANCE 6.11 Turn off water supplies to the pump and release pressure by opening water outlets before attempting maintenance. 6.12 Inlet Strainer: The inlet strainers may require periodical cleaning. The frequency of this operation is dependent upon installation conditions. The strainer is located in the inlet assembly of the pump casing and is removed as follows:- a) Isolate pump electrically.
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d) Check air charge at Schrader valve (Fig. 12) using a tyre pressure gauge. Vessel Pressure Model All models Schrader valve Pressure vessel Fig. 12 e) Replenish air charge if required by injecting air into the vessel via the Schrader valve using a car or bicycle pump, ensuring a system outlet valve (tap) remains open during this procedure to allow the vessel to exhaust any excess water.
22 mm male 22 mm male 22 mm male Stuart Turner 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 any supplementary instruction sheet supplied, or the rating label attached to the pump.
Check fuse (see fuse section). Check circuit breaker is set. Check wiring connections. Pump Jammed. If motor ‘Buzzes’ switch off power and contact Stuart Turner. Damaged pressure switch. Turn off power. Release system water pressure. Turn on power, pump should start. If NOT contact Stuart Turner.
We are confident this pump will provide many years of trouble free service as all our products are manufactured to the very highest standard. All Techflo qt pumps are guaranteed to be free from defects in materials or workmanship for 2 years from the date of purchase.
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TYPE NO. SERIAL NO. DATE PURCHASED Installers – Register with Stuart Turner and move up to Approved Installer status We receive thousands of enquiries every month from people seeking a Stuart Turner installer and by registering your details with us, we can offer consumers the opportunity to quickly locate an installer in their area.
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Signed ......... Stuart Turner are an approved company to BS EN ISO 9001:2000...
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