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STUART
STUART
Installation, Operation & Maintenance
Instructions
Please leave this instruction booklet with the end user as it contains
important guarantee, maintenance and safety information
Read this manual carefully before commencing installation.
This manual covers the following products:
SPU 135 Midi
Pt. No. 46721
SPU 235 Midi
Pt. No. 46722
SPU 150 Midi
Pt. No. 46723
SPU 250 Midi
Pt. No. 46724
CE compliant product
2
Table of Contents
Related Manuals for Stuart Turner STUART SPU 135 Midi
Summary of Contents for Stuart Turner STUART SPU 135 Midi
- Page 1 STUART STUART Installation, Operation & Maintenance Instructions Please leave this instruction booklet with the end user as it contains important guarantee, maintenance and safety information Read this manual carefully before commencing installation. This manual covers the following products: SPU 135 Midi SPU 150 Midi Pt.
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Page 2: Table Of Contents
PRODUCT DESCRIPTION Heating and cooling system pressurisation top up unit with integral water storage tank and electric motor driven peripheral pump, automated control system consisting of pressure transducer and water level sensors. The tank includes an AB air gap for category 5 fluid isolation (BS EN 1717). - Page 3 WARNINGS: This appliance must not be used for any other application without the written consent of Stuart Turner Limited. This 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...
- Page 4 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. Cont ... - 4 -...
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Page 5: Checklist
CHECKLIST IMPORTANT: With the appliance removed from its packaging check for any damage prior to installation. If any damage is found contact Stuart Turner Ltd within 24 hours of receipt. Front cover removed for clarity Electrical rating plate & serial number Fig. -
Page 6: Important Facts - Read Before Commencing Installation
1 IMPORTANT FACTS: READ BEFORE COMMENCING PUMP INSTALLATION A Water storage capacity. 1.11 The SPU Midi has a usable water volume of approximately 8 litres; the length of time the SPU takes to pressurise a system will be dependent on:- The pressure differential between the cold fill and set pressures and also the refill rate of the tank 1.12 Ensure the pumps are primed as described in the priming section before... -
Page 7: Location
2 LOCATION - GENERAL 2.11 Location: The preferred SPU Midi location is either on a solid wall or on a smooth level floor, both of sufficient strength to support the filled weight of the SPU Midi, close to the water source and a suitable overflow position (see Section 9 - Technical Specification for filled weight). - Page 8 SPU Midi that any noise is not amplified through loose panels or pipework. 2.21 Flexible hose: Only use the Stuart Turner hoses supplied with the SPU Midi. 2.22 Isolating valves: Separate system isolating valves (non-restrictive) must be fitted to allow easy service of the SPU Midi. Isolating valves must be mounted where specified to allow the system isolation and removal of the SPU Midi if needed.
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Page 9: Key Features
3.11 The SPU Midi comprises of the following main components:- 1. Moulded tank - Main body of the SPU, comprising of an integrated water tank with warning pipe and weir overflow and mounting the Stuart Turner brass pump assembly, manifold and controller. -
Page 10: Installation
4 INSTALLATION 4.11 Fill valve flow restrictor guidelines: The side entry fill valve must be fitted with the correct filter and flow restrictor combination (dependant on the mains water pressure) into the G ½ threaded tail as outlined below: Coloured insert - To be used for water pressure between 1 and 4 bar White insert - To be used for water pressure above 4 bar Fig. - Page 11 4.13 Wall plate fixing: 1. If installing the SPU Midi on a wall ensure suitable fixings for the wall structure are used and are suitable to support the unit when fully filled with water (see technical section for filled weights). The holes in the wall plate are 6 mm in diameter, the maximum permissible screw head height is 3 mm.
- Page 12 4.14 Floor installation: 1. If installed on a floor ensure the SPU Midi is located so it cannot be kicked or knocked over. 2. Ensure the floor surface on which the SPU Midi is located is flat and level. 3. If possible locate the unit against a wall for added stability. 4.
- Page 13 6. The flexible hose and any wiring can be retained in the desired position using cable ties and the two metal cable retention points on the top left and right of the SPU tank. See Figs. 10 & 11. 7. The warning pipe should be connected to a suitable drain via a tundish enabling visual warning of an overflow condition.
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Page 14: Electrical Installation
5 ELECTRICAL INSTALLATION / EARTHING 5.11 Regulations: The electrical installation must be carried out in accordance with the current national electrical regulations and installed by a qualified person. 5.12 Safety: In the interests of electrical safety a 30 mA residual current device (R.C.D. - Page 15 5.21 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: The wire which is coloured green and yellow must be connected to the...
- Page 16 5.23 Alarm and boiler interlock connections: Circuits connected to the relays are limited to 5 Amps, 230 V a.c. maximum. The Installer MUST fit a 5 Amp fuse in the circuit to the alarm relay to protect the SPU Midi from damage. Boiler Interlock Common Alarm High pressure alarm...
- Page 17 If the supply cord is to be changed or is damaged, it must be replaced with a special cord assembly available from Stuart Turner or one of their approved repairers. On disassembly note the cord retention and routing system. Re-assemble to the same pattern.
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Page 18: Commissioning
6 COMMISSIONING 6.11 Pre-commissioning checklist: Before starting the commissioning process the following conditions must be met. If these conditions are not adhered to, damage to the equipment, system and property may result. Ensure the unit is sited in a frost free area, away from precipitation and water sprays/jets. - Page 19 6.15 Controller overview The Stuart Turner SPU controller is designed to be intuitive to use and allows functions and alarms to be set by the installer/user. It also allows faults to be monitored and logged to enable easier system fault diagnosis.
- Page 20 6.16 Function list & explanation The functions are contained within an initial display and 3 menus:- Setting menu (pass code protected) see Section 6.18. Advanced setting menu (pass code protected) see Section 6.19. Test menu (pass code protected) see Section 6.20. 6.17 Initial display On start up, and during operation, if the SPU has had no button inputs for 1 minute, a home screen (see Section 7.11) will be displayed with system...
- Page 21 6.19 Advanced setting menu (Pass code protected, if set) The following functions can be set and modified:- Can be set to operate if of the following alarms activate:- Low water Pump fail Common alarm relay allocation Pump run time Pump activity high Sensor error Allows the relay to operate either as normally open or normally Common relay operation...
- Page 22 6.21 Pre-set values The SPU will be delivered with the following pre-set values:- 6.22 Setting menu Set Pressure 2 bar Differential 0.2 bar Hi Alarm 2.5 bar Lo Alarm 1.3 bar System fill Run activity high 1000 6.23 Advanced setting menu Relay allocation Pump fail Relay operation...
- Page 23 6.24 Controller menu diagram 18 March 2019 Power ‘on’ Home screen Start up screen Delay (logo) System pressure Enter pass display code (If set) Error display Advanced menu System fill status display Pump run on delay Pump activity display Pump start delay Pump run time display...
- Page 24 Open the isolation valve on the outlet of the SPU and the SPU will run and start to fill the system. 6.27 For further technical support: Phone the Stuart Turner TechAssist team on +44 (0) 800 31 969 80. Our staff are trained to help and advise you over the phone.
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Page 25: Operation
7 OPERATION 7.11 Normal operation: The ‘Home’ screen will display the status of the tank water level, system pressure and if any pump is running. Pressing the return key (D) will get back to this screen. Tank full System pressure is 2.10 bar Pump 1 running... - Page 26 When setting the differential pressure and the Hi and Lo alarms please ensure that the normal system pressure fluctuations are below the Hi pressure alarm set pressure and above the differential pressure. If this is not done the SPU will try to compensate for the pressure change causing an over pressure within the system or alarms being triggered.
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Page 27: Maintenance
8.13 Spares The SPU Midi is designed and built to be a reliable and high quality product, in the event of spares being required please see the Stuart Turner website for full details www.stuart-turner.co.uk or contact TechAssist on +44 (0) 800 31 969 80. -
Page 28: Environment Protection
8.14 Long term isolation and restart procedure If the system is to be shut down for an extended period of time due to maintainance or system modifications being carried out to the system the following steps must be taken. 1. Isolate mains inlet water from the SPU Midi. 2. -
Page 29: Technical Specification
29.4 Kg 23.4 Kg 29.4 Kg Stuart Turner reserve the right to amend the specification without notice. 10.11 Noise: The equivalent continuous A-weighted sound pressure level at a distance of 1 metre from the pump does not exceed 70 dB(A). -
Page 30: Trouble Shooting
Remove pressure from the SPU outlet and verify the displayed fault pressure is 0 bar. Error will be displayed if the sensor signal is outside parameters. (Replace sensor - call Stuart Turner). Pump(s) will not System pressure set System set pressure is set higher than the pump performance... -
Page 31: Product Log
12 PRODUCT LOG 12.11 Customer details Customer/company name Site address Date 12.12 Equipment details System volume m Expansion vessel(s) fitted & pre- charge pressure Boiler(s) fitted 12.13 Commissioning record Date commissioned Company Engineer System set pressure Differential pressure Hi alarm set pressure Lo alarm set pressure 12.14 Service Log Service No. - Page 32 Service No. 2 Date Engineer name Company name Tel. No System pressure bar Differential pressure bar Check 6 months 12 months Condition of wiring ü ü Condition of hoses ü ü Evidence of leakage ü ü Controller fault codes ü ü...
- Page 33 Service No. 4 Date Engineer name Company name Tel. No System pressure bar Differential pressure bar Check 6 months 12 months Condition of wiring ü ü Condition of hoses ü ü Evidence of leakage ü ü Controller fault codes ü ü...
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Page 34: Guarantee
+44 (0) 800 31 969 80 You should obtain appropriate insurance cover for any loss or damage which is not covered by Stuart Turner Ltd in this provision. Please record here for your records. TYPE NO. SERIAL NO. - Page 35 - 35 -...
- Page 36 Signed ..........Stuart Turner are an approved company to BS EN ISO 9001:2015...