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STUART
Installation, Operation & Maintenance
Instructions
Please leave this instruction booklet with the end user as it contains
important warranty, maintenance and safety information
Read this manual carefully before commencing installation.
This manual covers the following products:
SPU 180 Maxi
Pt. No. 46725
SPU 280 Maxi
Pt. No. 46726
Table of Contents
Related Manuals for Stuart Turner SPU 180 Maxi
Summary of Contents for Stuart Turner SPU 180 Maxi
- Page 1 Please leave this instruction booklet with the end user as it contains important warranty, maintenance and safety information Read this manual carefully before commencing installation. This manual covers the following products: SPU 180 Maxi SPU 280 Maxi Pt. No. 46725 Pt. No. 46726...
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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...
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Page 4: 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. Electrical rating plate and serial number Inlet Overflow Outlet Fig. 1... -
Page 5: Important Facts - Read Before Commencing Installation
1 IMPORTANT FACTS: READ BEFORE COMMENCING PUMP INSTALLATION A Water storage capacity. 1.11 The SPU Maxi has a usable water volume of approximately 18 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... -
Page 6: Location
2 LOCATION – GENERAL 2.11 Location: The preferred SPU Maxi location is on a smooth level floor, of sufficient strength to support the filled weight of the SPU Maxi, close to the water source and a suitable overflow position (see Section 9 – Technical Specification for filled weight). The SPU Maxi must not be installed in a loft space. - Page 7 2.19 Static outlet pressure: The static outlet head must be 3 metres below pump maximum cold fill pressure (vertically above the appliance). 2.20 Isolating valves: Separate system isolating valves (non-restrictive) must be fitted to allow easy service of the SPU Maxi. Isolating valves must be mounted where specified to allow the system isolation and removal of the SPU Maxi if needed.
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Page 8: Key Features
Mounted to a removable mounting plate to allow easy maintenance if required. 3. Programmable controller – Stuart Turner designed, user set controller, allowing system set up and easy alarm connection. Fig. 3 3.12 Principle of operation: The pressurisation unit consists of a break tank and... -
Page 9: Installation
4 INSTALLATION 4.11 Cold mains feed connection: The connection to the cold water mains inlet is made using the upper G ½ male threaded connection. See Fig. 4. When tightening ensure the fill valve within the tank is not rotated. If the valve is rotated it may not function correctly with the risk of flooding. - Page 10 4. The warning pipe should be connected to a suitable drain via a tundish enabling visual warning of an overflow condition. The overflow fitting is designed to use 19 to 23 mm diameter plastic waste pipe or connect to G ¾ threaded pipe. Ensure there is a demountable joint in the pipe to allow the removal of the SPU Maxi if needed.
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Page 11: 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 12 5.21 Wiring of connection unit: WARNING: This appliance must be earthed. This product range must be permanently connected to fixed wiring and is provided with a set of terminals which allow the connection of a flexible supply cord. Select a supply cord and fuse size based on the full load current and the surrounding conditions and wired with the following code: Green and Yellow: Earth Blue: Neutral...
- Page 13 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 Maxi from damage. Boiler Interlock Common Alarm High pressure alarm...
- Page 14 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 15: 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 ... - Page 16 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 17 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 18 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 alarm relay operation...
- Page 19 6.20 Test menu (Pass code protected, if set) The following functions can be set and modified:- Forces pump 1 (LH) or 2 (RH) to run for 5–10 seconds to enable Pump test operation of the pump to be confirmed. Monitors the volume of water pumped into the system since it System fill volume was last reset.
- Page 20 6.24 Controller menu diagram 17 Sept 2019 Power ‘on’ Home screen Start up screen Display logo & phone number. Delay System Enter pass See page 5, column pressure code 4 & 5 display (If set) Error display Advanced menu System fill status display Pump run on delay...
- Page 21 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 22: 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 23 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 24: Maintenance
8.13 Spares The SPU Maxi 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 25: 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 Maxi. 2. -
Page 26: Technical Specification
Weight – filled 52 Kg 63 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 27: Trouble Shooting
Pressure sensor pressure is 0 bar. Error will be displayed if the sensor signal is outside fault parameters. (Replace sensor – call Stuart Turner). Pump(s) will not System pressure set System set pressure is set higher than the pump performance capability, reduce set pressure. -
Page 28: 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 29 Service No. 2 Date Engineer name Company name Tel. No System pressure bar Differential pressure bar Check 6 months 12 months Condition of wiring Condition of hoses Evidence of leakage Controller fault codes ...
- Page 30 Service No. 4 Date Engineer name Company name Tel. No System pressure bar Differential pressure bar Check 6 months 12 months Condition of wiring Condition of hoses Evidence of leakage Controller fault codes ...
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Page 31: Warranty
+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 32 Stuart Turner Ltd, Henley-on-Thames, Oxfordshire RG9 2AD ENGLAND Tel: +44 (0) 1491 572655, Fax: +44 (0) 1491 573704 [email protected] www.stuart-turner.co.uk Issue No. 4021/01-06 Pt. No. 20877...