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Related Manuals for andrews STOR-SS300-8-S
Summary of Contents for andrews STOR-SS300-8-S
- Page 2 Health and Safety Regulations 1993. All installation and service on Andrews Water Heaters must be carried out by properly qualified personnel and, therefore, no liability can be accepted for any damage or malfunction caused as a result of intervention by unauthorised personnel.
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Page 3: Table Of Contents
1.3.3 Users Liability Safety General Safety Warnings Recommendations Specific Safety Instructions Technical Specifications Indirect Single and Twin Coil Connections & Technical Data ErP Data Dimensions and Connections 3.3.1 STOR-SS300-8-S 3.3.2 STOR-SS500-8-S 3.3.3 STOR-SS800/1000-8-S 3.3.4 STOR-SS300-8-T 3.3.5 STOR-SS500-8-T 3.3.6 STOR-SS800/1000-8-T Electrical Diagram... - Page 4 Contents Contents continued Commissioning General Checklist Before Commissioning Commissioning Procedure 7.3.1 Indirect Units 7.3.2 Flow Performance 7.3.3 Temperature Controls 7.3.4 Operational Faults Maintenance General 8.1.1 Maintenance Requirements Standard Inspection & Maintenance Operations 8.2.1 Inspection 8.2.2 Safety Valve Operation 8.2.3 Strainer 8.2.4 Expansion Vessel Charge Pressure 8.2.5...
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Page 5: Introduction
Introduction Introduction General Information The following instructions are offered as a guide to the user and installer. The installation must be carried out by a competent plumbing and electrical installer in accordance with Building Regulation G3 (England and Wales), Technical Standard P3 (Scotland) or Building Regulation P5 (Northern Ireland) and the Water Fitting Regulations (England and Wales) or Water Byelaws (Scotland). -
Page 6: Liabilities
Introduction Liabilities 1.3.1 Manufacturers liability Our products are manufactured in compliance with the requirements of the various applicable European regulations and Directives. This appliance complies with the requirements of the CE marking directive. In the interest of UK customers, we are continuously endeavouring to make improvements in product quality. -
Page 7: Safety
Safety Safety General Safety Warnings Danger This cylinder is intended to be used as unvented and as such becomes pressurised when in operation. The combination of pressurisation and hot water could lead to serious physical injury if the safety instructions in this manual are not adhered to. -
Page 8: Technical Specifications
Technical Specifications Technical Specifications Technical data Note 1. Indirect cylinders tested in conformance with BS EN 12897: 2016. Heat up time from cold through 50°C, based on a flow temperature of 80°C +/- 2°C & normal volume. ErP data Standing heat-loss Note Testing is carried out to BS EN 12897: 2016 Issue 1 06/02/20... -
Page 9: Dimensions And Connections
Technical Specifications Dimensions and Connections 3.3.1 STOR-SS300-8-S ø620 Fig. 1 1685 1415 Section -A-B- 42° Technical Characteristics Side inspection detail Issue 1 06/02/20... -
Page 10: Stor-Ss500-8-S
Technical Specifications 3.3.2 STOR-SS500-8-S Fig. 2 ø770 1690 1371 Section -A-B- 35° Technical Characteristics Side inspection detail Issue 1 06/02/20... -
Page 11: Stor-Ss800/1000-8-S
Technical Specifications 3.3.3 STOR-SS800/1000-8-S Fig. 3 ø950 ø790 Manipulation eye bolt provide with the tank Section -M-N- 6,3,2 1,7,8,9,14 Technical Characteristics D.H.W. Tank • Material: AISI 316 chemically Side descaled and passivated inspection • Max. working pressure: 8 bar detail •... -
Page 12: Stor-Ss300-8-T
Technical Specifications 3.3.4 STOR-SS300-8-T Fig. 4 ø620 1685 1415 Section -A-B- 42° Technical Characteristics D.H.W. Tank • Material: AISI 316 chemically descaled and passivated Side inspection • Max. working pressure: 8 bar detail • Max. working temperature: 70°C • Volume: 291L Issue 1 06/02/20... -
Page 13: Stor-Ss500-8-T
Technical Specifications 3.3.5 STOR-SS500-8-T Fig. 5 ø770 1690 1371 Section -A-B- 35° Technical Characteristics D.H.W. Tank Side • Material: AISI 316 chemically inspection descaled and passivated detail • Max. working pressure: 8 bar • Max. working temperature: 70°C • Volume: 484L Issue 1 06/02/20... -
Page 14: Stor-Ss800/1000-8-T
Technical Specifications 3.3.6 STOR-SS800/1000-8-T Fig. 6 ø790 ø950 Manipulation eye bolt provide with the tank Section -M-N- Partial section for -P- 6,3,2 1,7,8,9,14 Technical Characteristics Side inspection D.H.W. Tank detail • Material: AISI 316 chemically descaled and passivated • Max. working pressure: 8 bar •... -
Page 15: Electrical Diagram
Technical Specifications Electrical Diagram Warning Fig. 7 The high limit stat must always operate the zone valve - Pilot lights in case of over temperature. Te° - Thermometer Te° Dual safety and temperature control thermostat, manual TL° - Regulating thermostat reset. -
Page 16: Description Of Product
Description of Product Description of Product General Description This product is a purpose designed unvented water heater. The unit has a stainless steel inner vessel, which ensures an excellent standard of corrosion resistance. The outer casing is a combination of resilient thermoplastic mouldings and soft jacket. -
Page 17: Before Installation
Before Installation Before Installation Installation Regulations Warning Installation of the appliance must be carried out by a qualified engineer in accordance with prevailing and national regulations as listed below. • Building Regulations • The Building Standards (Scotland) • The Building Regulations (Northern Ireland) •... -
Page 18: Choice Of Location
Before Installation • Steam heating plants unless additional and appropriate safety devices are installed. • Situations where maintenance is likely to be neglected or safety devices tampered with. • Water supplies that have either inadequate pressure or where the supply may be intermittent. •... -
Page 19: Installation
Installation Installation General After reading the previous sections in this booklet and choosing a good location for the unit please install, paying attention to the following hydraulic, electrical and commissioning sections. 6.1.1 Heat Source selection • The Heat Source should have a control thermostat and non self-resetting thermal cut-out and be compatible with unvented storage water heaters. -
Page 20: Cold Water Control Pack
Installation Typical installation schematic (not to scale) T&P relief Expansion Balanced cold Pressure relief To hot outlets valve vessel water connection valve Pressure reducing valve Mains water supply Secondary return Primary flow Primary return Fig. 10 Inlet Drain cock Tundish Discharge pipe 6.2.1 Unvented system kit Caution... -
Page 21: Primary Circuit Control
Installation 6.2.2 Primary circuit control • The 2 port motorised valve supplied with the unvented system kit MUST be fitted on the primary flow to the cylinder heat exchanger and wired such that in the event of the cylinder overheating it will close the primary circuit. •... -
Page 22: Discharge
Installation 6.2.4 Discharge It is a requirement of Building Regulation G3 that any discharge from an unvented system is conveyed to where it is visible, but will not cause danger to persons in or about the building. The tundish and discharge pipes should be fitted in accordance with the requirements and guidance notes of Building Regulation G3. - Page 23 Installation Note To comply with the Water Supply (Water Fittings) Regulations, the tundish should incorporate a suitable air gap. 3.55 Any discharge should be visible at the tundish. In addition, where discharges from safety devices may not be apparent, e.g. in dwellings occupied by people with impaired vision or mobility, consideration should be given to the installation of a suitable safety device to warn when discharge takes place, e.g.
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Page 24: Worked Example Of Discharge Pipe Sizing
Installation (b) be a separate branch pipe with no sanitary appliances connected to it; (c) if plastic pipes are used as branch pipes carrying discharge from a safety device they should be either polybutylene (PB) to Class S of BS 7291-2:2006 or cross linked polyethylene (PE-X) to Class S of BS 7291-3:2006;... - Page 25 Installation Therefore the permitted length equates to: 5.8m 5.8m is less than the actual length of 7m therefore calculate the next largest size. Maximum resistance allowed for a straight length of 28mm pipe (D2) from a G1/2 temperature relief valves equates to 18m. Subtract the resistance of 4 No.
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Page 26: Electrical Connections
Installation Electrical Connections In case of difficulty contact service support; contact details are available on page 2 of this booklet. Warning • Disconnect from the mains electrical supply before removing any covers. • Do Not bypass the thermal cut-out(s) in any circumstances. -
Page 27: Commissioning
Commissioning Commissioning General After filling the installation with water in the previous section please follow the following steps to complete the installation of the unit. Warning Do Not operate the primary circuit until the cylinder has been filled with water. Checklist Before Commissioning •... -
Page 28: Flow Performance
Commissioning 7.3.2 Flow performance When initially opening hot outlets a small surge in flow may be noticed as pressures stabilise. This is quite normal with unvented systems. In some areas cloudiness may be noticed in the hot water. This is due to aeration of the water, is quite normal and will quickly clear. -
Page 29: Maintenance
Maintenance Maintenance General 8.1.1 Maintenance requirements Unvented hot water systems have a continuing maintenance requirement in order to ensure safe working and optimum performance. It is essential that the relief valve(s) are periodically inspected and manually opened to ensure no blockage has occurred in the valves or discharge pipework. -
Page 30: Expansion Vessel Charge Pressure
Maintenance • Wash any particulate matter from the strainer under clean running water. • Replace the strainer and screw the Pressure Reducing Valve cartridge into the moulded housing. • Close hot tap, turn on isolating valve or main stop cock to the system. -
Page 31: Troubleshooting
Troubleshooting Troubleshooting Fault Finding Warning Do not tamper with any of the safety valves or controls supplied with the cylinder as this will invalidate any guarantee. 9.1.1 Important • Servicing should only be carried out by competent persons in the installation and maintenance of unvented water heating systems. - Page 32 Troubleshooting Fault Possible Cause Remedy Mains supply off Check and open stop cock Strainer blocked Turn off water supply. Remove strainer and No hot water flow clean Cold water combination valve incorrectly Check and refit as required fitted Indirect motorised valve fault Check, operation of valve Pump failure Check, pump operation...
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Page 33: Decommissioning
Decommissioning 10 Decommissioning 10.1 Decommissioning Procedure • Isolate electrical supplies and make safe • Isolate the water supply • Drain the cylinder • Drain the primary circuit • Remove cylinder • Cap pipework. 10.2 Environmental Information Products are manufactured from many recyclable materials. At the end of their useful life they should be disposed of at a Local Authority Recycling Centre in order to realise the full environmental benefits. -
Page 34: Spare Parts
Spare Parts 11 Spare Parts 11.1 Baxi Genuine Parts List A full range of spare parts are available for the cylinder range. Refer to the Technical Data label on the unit to identify the model installed and ensure the correct part is ordered. Description Spares Number Control Panel... - Page 35 Spare Parts Description Spares Number Un-Vented Kits – 8 Bar Unvented Kit - 300L 7726936 Kit Components Inlet Control Valve – 3.5/8.0 Bar (28mm) 7728193 Lever Ball Valve – 1” (Blue) 7728194 Expansion Vessel – 50L / 3 Bar (Blue) 7728195 Tundish –...
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Page 36: Warranty
Warranty Warranty Terms Refer to Andrews standard Terms & Conditions This warranty is valid provided that: • The water heater has been installed by a competent engineer and as per the instructions contained in the installation manual and all relevant Codes of Practice and Regulations in force at the time of installation. - Page 38 © Copyright All technical and technological information contained in these technical instructions, as well as any drawings and technical descriptions supplied, remain our property and shall not be multiplied without our prior consent in writing. Subject to alterations.