gledhill Stainless Lite Direct 90-300 litres Design, Installation & Servicing Instructions
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gledhill Stainless Lite Direct 90-300 litres Design, Installation & Servicing Instructions

Hot water storage
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An unvented hot water storage unit complying
with the requirements of Building Regulations
Approved Document G3 and manufactured in
accordance with BS EN 12897, the specifi cation
for the unvented water storage vessels.
Design, Installation
& Servicing Instructions
Models
Stainless Lite Direct 90-300 litres
Stainless Lite Solar Direct 180-300 litres
Stainless Lite Solar Indirect 180-300 litres

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Summary of Contents for gledhill Stainless Lite Direct 90-300 litres

  • Page 1 BS EN 12897, the specifi cation for the unvented water storage vessels. Design, Installation & Servicing Instructions Models Stainless Lite Direct 90-300 litres Stainless Lite Indirect 90-300 litres Stainless Lite Solar Direct 180-300 litres Stainless Lite Solar Indirect 180-300 litres...
  • Page 2 Stainless Lite IS PRODUCED UNDER AN ISO 9001:2008 QUALITY MANAGEMENT SYSTEM APPROVED BY BSI. As part of the industry wide “benchmark” initiative all Gledhill Stainless Lite appliances now include a Benchmark Installation, Commissioning and Service Record Log Book. Please read carefully and complete all sections relevant to the appliance installation.
  • Page 3 2.2 bar immersion heaters, should be purchased from Expansion Relief Valve setting 4.5 bar Gledhill Building Products Limited, or agents approved by them. Unvented hot water storage Maximum primary working pressure 3.5 bar vessels need regular routine checks, and these Opening pressure of T &...
  • Page 4 DESIGN Figure 1 Figure 2 Stainless Lite is a range of unvented hot water storage cylinders, manufactured in the latest high quality duplex stainless steel. They are designed to provide mains pressure hot water and are supplied as a package which complies with Section G3 of the Building Regulations.
  • Page 5 DESIGN Stainless Lite Direct Solar Figure 3 Figure 4 Stainless Lite direct is an electrically heated, unvented hot water storage cylinder designed primarily for use with off peak electrical supplies. It is supplied fi tted with two 3kW immersion heaters which are BEAB approved for safety as recommended by the Electricity Council.
  • Page 6 DESIGN Direct Indirect Solar Direct Table 1 Litres Litres A=mm B=mm C=mm D=mm E=mm F=mm Litres G=mm Direct 2.25 D120 2.25 D150 2.25 1107 D180 2.25 1295 1053 D210 2.25 1483 1241 1127 D250 2.25 1733 1491 1377 D300 2.25 2020 1777 1577...
  • Page 7 DESIGN NOTES Solar Indirect 1. Not all models - see table 1. 2. Recovery times based on Primary Coil/I.H. duty (ie. assumes the boiler output is adequate). 3. All connections are supplied with compression fittings for direct connection to copper pipework. H=mm I=mm J=mm K=mm L=mm M=mm N=mm P=mm Litres 0.80...
  • Page 8 INSTALLATION Stainless Lite Direct Basic Appliance 1. Hot water draw off (22mm) compression 2. Temperature & pressure relief valve 90°/6 bar 3. Hot water secondary return 22mm capped (not fi tted to smaller sizes, see table 1) 4. Immersion heater 1¾” BSP 3kW (normally on-peak) 5.
  • Page 9 INSTALLATION Stainless Lite Direct Solar Basic Appliance 1. Hot water draw off (22mm) compression 2. Temperature & pressure relief valve 90°/6 bar 3. Hot water secondary return 22mm capped (not fi tted to smaller sizes, see table 1) 4. Immersion heater 1¾” BSP 3kW (normally on-peak) 5.
  • Page 10 INSTALLATION General Design Considerations The cupboard footprint needs to be at least 650mm square. The base chosen for the cylinder should be level and capable of supporting the weight of the unit when full of water as shown in General Data. The discharge pipework for the safety valves must have a minimum fall of 1 : 200 from the unit to a safe discharge point.
  • Page 11 INSTALLATION General Restrictions Pipe Layout a. The highest hot or cold water draw off point should not exceed 10 metres above In all mains pressure installations it is important the Pressure Reducing Valve. to remember that the incoming cold supply b.
  • Page 12 INSTALLATION Pressure & Temperature/expansion Relief Typical Discharge Pipe Arrangement Valve Pipework Expansion 15 mm The relief valve should be installed to discharge relief valve discharge in accordance with G3 of the Approved pipe Document of the Building Regulations and should be piped to where it is visible, but will not cause danger to persons or damage to 500 mm max.
  • Page 13 They must not be changed, removed or by-passed and it is essential that only genuine replacement parts supplied or approved by Gledhill Building Products Limited are used. This includes the immersion heaters, which must incorporate an energy cut-out. All parts are available to approved installers from Gledhill Building Products Limited, Sycamore Estate, Squires Gate, Blackpool (Telephone 01253 474402).
  • Page 14 The immersion heaters must be earthed and they must be isolated from the mains before the cover is removed on every occasion. Replacement immersion heaters should be obtained from Gledhill Building Products Limited. Control/overheat Dual Thermostats Care must be taken to ensure that the solar probes are fully inserted into the pockets provided.
  • Page 15 INSTALLATION Heating/primary Systems Schematic Open Vented Primary System The boiler and primary/heating systems should Warming/Overflow be sized and installed in accordance with BS Pipe 5449. Safety F & E Cistern Stainless Lite is fitted with a Combined Temperature/Pressure Relief Valve to cope Motorised Valve with any increase in system temperature and (Energy cut-out)
  • Page 16 INSTALLATION All components in a solar primary system must Schematic Solar Direct System be marked or identifi able in such a way that their design pressure and temperature can be Solar Panel readily determined. A safety device (pressure relief valve) to control the risk of over-pressure in system components should be fi...
  • Page 17 (pressure relief valve) 1 bar DeltaSol BS Pressure Relief Valve Gledhill Stainless Lite Unvented Cylinder Anti Gravity Solar Check Valve Pumping Station R2 N 1 2 3 4 5 6 7 8...
  • Page 18 INSTALLATION Page 18...
  • Page 19 INSTALLATION The boiler/heating systems should be filled Connections can come loose in transit, and all should be checked before and commissioned in accordance with good installation. practice following the guidance in BS 5449/the boiler manufacturers instructions. This includes Ensure that the immersion heater setting is 60°C and that the wiring is in accordance adequately fl...

  • Page 20: User Instructions

    USER INSTRUCTIONS Your Stainless Lite unvented cylinder is automatic in normal use, but requires routine maintenance which is normally carried out at least annually along with the boiler service. The maintenance must be carried out by a suitably competent tradesperson who is qualifi...

  • Page 21: Servicing And Maintenance

    The installer must also make his customer aware that periodic maintenance of the equipment is essential for safety. Maintenance periods will vary for many reasons. Gledhill Building Products Ltd recommend a maximum of 12 months to coincide with boiler maintenance. Experience...
  • Page 22 If the cold water pressure is too high, this would suggest that the Pressure Reducing Valve is at fault and the Gledhill approved replacement should be fi tted. If the pressure is correct then the Relief Valve will require replacing with a Gledhill approved component.
  • Page 23 SERVICING AND MAINTENANCE FAULT - No Hot Water (Direct) START Is power on to elements? Switch on Is control temperature Re-set set at 55ºC - 60ºC? Has high limit tripped? Replace element Check wiring links continuity and Re-set FAULT - No Hot Water (Indirect) START Is boiler on? Switch on...
  • Page 24 SERVICING AND MAINTENANCE FAULT - Poor Water Flow at Hot Taps START Is incoming mains supply Water service check by flow/pressure adequate? supply company required Is in-line strainer Clean or replace strainer (in combination valve) as appropriate clean? Is pressure reducing valve Service /replace PRV (in combination valve) as appropriate...
  • Page 25 SERVICING AND MAINTENANCE SPARE PARTS LIST Description Quantity Stock Code No. 3kW immersion element SH001 22mm 90° compression elbow c/w/drain SF003 Pressure and temperature relief valve 6 bar 95°C SG001 Inlet group set at 2.25 bar c/w expansion relief valve set at 4.5 bar SG002 ¾”...
  • Page 26 APPENDIX Water Savings Water Related Costs Can Be Reduced By Good Plumbing Practice 2 tap 5, 6 or half open Over 8 l/m 20 l/m Unregulated Fitted with regulator TAPS & MIXERS 4 Fixing Options For Taps & Mixers 1. MK Range - Combined Regulators & Aerator for screwing onto Taps &...
  • Page 27 Make sure you and This assessment will cover the largest appliance within each product range any others helping know the route manufactured by Gledhill. you intend to take that it is clear of any obstructions. Never jerk the load...
  • Page 28 SERVICE INTERVAL RECORD It is recommended that your heating system is serviced regularly and that you complete the appropriate Service Interval Record Below. Service Provider. Before completing the appropriate Service Interval Record below, please ensure you have carried out the service as described in the boiler manufacturer’s instructions.
  • Page 29 Page 29...
  • Page 30 (c) Integrated Boiler and Storage Vessel Products and Stand Alone Boilers which becomes defective within two years after the In the case of the GulfStream range of products and the Gledhill boiler range of products, Gledhill guarantees date of the delivery by us and is returned to us at the the heat exchanger (boiler) for material and construction faults for two years.
  • Page 31 Gledhill will replace, free of charge, any plate heat exchanger fitted in recovering any such goods the property in which the appliance as original equipment in which scale formation occurs that materially reduces the effectiveness has remained in us under paragraph (2) above.
  • Page 32 Huntingdon, Inverkeithing, Liverpool, Maidstone, Newport, Nottingham, Paignton, Reading, Southampton, Washington. Information on the full range of Gledhill products can be found on the internet at www.gledhill.net In the interest of continuously improving the Stainless Lite range, Gledhill Building Products Ltd.

This manual is also suitable for:

Stainless lite solar direct 180-300 litres

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