gledhill TORRENT DIRECT Design, Installation & Servicing Instructions
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gledhill TORRENT DIRECT Design, Installation & Servicing Instructions

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A total hot water and heating
thermal store that can also make
the most of renewable energy
Design, Installation
& Servicing Instructions
All models comply with the Hot Water Association
specifi cation for thermal stores
Please leave these instructions adjacent
to the appliance

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Summary of Contents for gledhill TORRENT DIRECT

  • Page 1 A total hot water and heating thermal store that can also make the most of renewable energy Design, Installation & Servicing Instructions All models comply with the Hot Water Association specifi cation for thermal stores Please leave these instructions adjacent to the appliance...
  • Page 2 In the interest of continuously improving the Torrent range, Gledhill Building Products Gledhill’s fi rst priority is to give a high quality service to our customers. Ltd reserve the right to modify the product without notice, and in these circumstances...

  • Page 3: Table Of Contents

    4.6 Other renewable energy sources INSTALLATION 5.1 General 5.2 Torrent Direct 5.3 Torrent Indirect and Torrent RE-Solar 5.4 Solar heating – Torrent RE and Torrent Direct-solar 5.5 Other renewable energy sources COMMISSIONING 6.1 Torrent Direct models 6.2 Non-Electric Torrent models 6.3 Important Do’s and Don’ts...

  • Page 4: Description

    BEAB approved for safety. A Torrent Direct-Solar model shown in figure 1.2, is also available for use with a solar thermal water heating system. The technical data of the Torrent Direct models is listed in table 2.3 in section 2.

  • Page 5: Torrent Indirect-Sp

    DESCRIPTION The Torrent Indirect-OV models can be plumbed using the traditional ‘Y’ or ‘S’ plan control arrangements or alternatively, the central heating can be supplied using a separate pump directly from the store as described in section 4 of this manual. The technical data of the Torrent Indirect- OV models is presented in table 2.4 in section 2.
  • Page 6 TORRENT HP RANGE Gledhill produce storage vessels specifically designed for use with heat pumps. Please ask for Torrent HP / Stainless Lite HP literature or visit our website www.gledhill.net. Our heat pump range includes: - Torrent-HP: These are primary thermal stores of up to 450 litre capacity and designed for use with heat pumps.
  • Page 7 Solar Flow Solar heating Flow Solar Sensor Cold Feed Solar controller sensor pocket Solar Return Cylinder Drain Solar heating return Figure 1.2 Torrent Direct-Solar F & E Cistern Adjustable thermostatic Mixing valve Vent Wood burning stove Top DHW Flow (Optional)

  • Page 8: Torrent Re-Solar

    DESCRIPTION F & E Cistern Adjustable thermostatic Mixing valve Vent Top DHW Hot water outlet Wood burning stove (22 mm ) Flow (Optional) Solid Fuel Flow Store Overheat Top DHW Immersion heater Bottom DHW (Optional) Store thermostat ITC Stat Cold mains Bottom DHW inlet (22 mm) Immersion Heater...

  • Page 9: Torrent Combi-Preheat

    DESCRIPTION F & E Cistern Adjustable thermostatic Vent Mixing valve Top DHW Hot water outlet Wood burning stove (22 mm ) Flow (Optional) Solid Fuel Flow Store Overheat Boiler flow Overheat sensor Direct Boiler Flow / thermostat pocket Top DHW ITC Stat Immersion Heater Immersion heater...

  • Page 10: Technical Data

    The solar heating systems and the associated equipment should comply with the ‘Building Regulations’ and these requirements are specified in the ‘Heating system compliance guide’. (See www.gledhill.net). The key requirements relevant to the model selection are: - Either the total floor area, A , of the dwelling should not be greater than the value stated for the model in table 2.1 as illustrated by example 1 below;...
  • Page 11 TECHNICAL DATA OPTIONAL EQUIPMENT A high limit thermostat is available as an option. TECHNICAL DATA The physical and the technical data for the Torrent range covered by this manual presented in tables 2.3 – 2.8. The reference notes for these tables are described below. The maximum dwelling floor area calculated using SAP 2005 procedure for compliance with the Building Regulations 2000 relating to solar heating systems.
  • Page 12 TECHNICAL DATA Page 12...
  • Page 13 TECHNICAL DATA Page 13...
  • Page 14 TECHNICAL DATA Page 14...
  • Page 15 TECHNICAL DATA Page 15...
  • Page 16 TECHNICAL DATA Page 16...
  • Page 17 TECHNICAL DATA Page 17...
  • Page 18 TECHNICAL DATA Page 18...

  • Page 19: General

    DESIGN GENERAL A typical arrangement of the hot and cold water system is shown in figure 3.1. All Torrent models are designed to be fed directly from the mains and they fulfil the requirements of Water Bylaw 91, and therefore do not require a check valve to be fitted to the cold water supply pipe.

  • Page 20: Materials

    DESIGN MATERIALS All the recommendations with regard to the heating systems in this manual are generally based on BS/EN Standard copper pipework and fittings. However plastic pipework system can be used in place of copper as long as the:- The chosen system is recommended for use in domestic heating systems by the manufacturers and it is installed fully in accordance with their recommendations.

  • Page 21: Hot And Cold Water Supply Pipe Lengths

    DESIGN HOT AND COLD WATER SUPPLY PIPE LENGTHS (DEADLEG VOLUMES) If the length of the hot water draw-off pipework is excessive and the delivery time will be more than 60 seconds before hot water is available at the tap, you may wish to consider using trace heating to the hot water pipework such as the Raychem HWAT system.
  • Page 22 DESIGN BS1212 Scale inhibitor Ballvalve (where necessary) W.C. Second dwelling Sink H.B. Bath TYPICAL HOT AND COLD DISTRIBUTION Check valve NOT REQUIRED unless scale inhibitor is a chemical type. Supply In any event, do not fit a check valve down stream of this point (see 5.1.9) pipe Check valve NOT REQUIRED unless supply pipe services more than one dwelling...

  • Page 23: Heating System Design

    Torrent should be taken into account. TORRENT DIRECT SYSTEM DESIGN The Torrent Direct model shown in figure 1.1, has been designed to generally operate with an off- peak supply and is provided with two side entry 3kW immersion heaters. The lower immersion heater heats the whole of the store and is normally connected to the off-peak supply.

  • Page 24: Torrent Indirect And Torrent Re-Solar Heating System Design

    HEATING SYSTEM DESIGN TORRENT INDIRECT & TORRENT RE-Solar HEATING SYSTEM DESIGN 4.4.1 General The open vented i.e. the ‘OV’ models of the Torrent Indirect and the Torrent-RE are only suitable for open vented heating systems. The sealed primary i.e. the ‘SP’ models of the Torrent Indirect and the Torrent-RE are generally used for sealed primary (i.e.

  • Page 25: Boiler Size

    HEATING SYSTEM DESIGN The feed and expansion cistern supplied with the thermal store can be fitted remotely up to 10m above the base of the Torrent i.e. the maximum static pressure in the store must not exceed 0.6 bar (6.0 mWG). The primary pipe work connecting the boiler, thermal store and the central heating system should be sized to achieve either 11 C rise (BS 5449) across the boiler or the maximum...
  • Page 26 HEATING SYSTEM DESIGN The flow pipe between the boiler and the Torrent thermal store is part of the open vent and therefore it must not be fitted with any isolating valve, non-return valve or any other component which can obstruct the flow. The minimum size of flow and return pipe between the boiler and the Torrent should be 22mm copper or equivalent.

  • Page 27: Solar Heating Systems

    4.5.2 Torrent Direct-Solar A typical Torrent Direct-Electric solar heating system based on a generic solar controller is shown in figure 4.7. Therefore general design requirements for hot and cold water systems (section 3), for Ball valve and overflow (section 4.1), for water treatment (section 4.2) and for heating system...
  • Page 28 HEATING SYSTEM DESIGN 4.5.3 Torrent RE-Solar The Torrent RE-Solar is an advanced thermal store and has been designed to incorporate existing boiler and central heating controls and is based on the tried and tested standard Torrent range. Therefore general design requirements for hot and cold water systems (section 3), for Ball valve and overflow (section 4.1), for water treatment (section 4.2) and for heating system design (section 4.3) should be taken into account when designing the Torrent RE-solar based systems.

  • Page 29: Other Renewable Energy Sources

    HEATING SYSTEM DESIGN However further supplementary time periods for the boiler will be required in winter when not much solar energy is available. Uncontrolled boiler operation can also be reduced by fitting and wiring a pipe thermostat on the solar return pipe close to the Torrent RE-solar as shown in figures in section 5 ‘Installation’.
  • Page 30 Figure 4.1 Typical wiring for Twin tariff un-restricted off-peak connection Figure 4.1 Typical wiring for twin tariff unrestricted off-peak connection 250mm minimum Feed and vent pipes must be fitted by the installer Torrent Direct Maximum height = 6m Flow Return 1 : Automatic bypass valve...
  • Page 31 HEATING SYSTEM DESIGN 250mm minimum Feed and vent pipes must be fitted by the installer Torrent Direct Maximum height : 6m Flow Return 1 ; Boiler pump 2 : Central heating pump 3 : Store thermostat Boiler Figure 4.3 Torrent Indirect OV: Typical open vented heating system using twin pump control arrangement...
  • Page 32 HEATING SYSTEM DESIGN Figure 4.5 Torrent Indirect ‘SP’ – Typical ‘Y Plan’ sealed heating system Maximum height : 6m Torrent Indirect Flow Return All heating returns must be connected prior to the primary return from the coil Must be fitted Close to boiler Boiler 1 : Sealed system kit (not supplied) comprising : Expansion vessel, Pressure relief valve, Pressure gauge and Approved filling loop...
  • Page 33 HEATING SYSTEM DESIGN Figure 4.7 Torrent Direct-Solar – Typical solar system wiring Solar controller Solar panels 230Vac, 50Hz Pump supply L N E L N E Expansion vessel Solar IH-2 pumping station Junction IH-1 S1 : Solar flow temperature sensor...

  • Page 34: Installation

    HEATING SYSTEM DESIGN Figure 4.9 Torrent RE-Solar ‘SP : Typical sealed ‘Y-Plan’ Central heating, open vented under floor heating, and solar heating system Solar panels 230V AC supply 1 : Sealed system kit comprising (Not Supplied): Expansion vessel Solar Pressure gauge controller Pressure relief valve Filling loop...

  • Page 35: General

    INSTALLATION GENERAL ( FOR ALL TYPES AND MODELS ) All Torrent models are designed to be installed in an airing cupboard and the relevant minimum dimensions are given in technical data tables in section 2. The maintenance access is to the front and top of the appliance and this should be considered when positioning the appliance in the cupboard.

  • Page 36: Torrent Direct

    The schematic arrangement of the wiring for the Torrent Direct is shown in figure 4.1. The whole of the electrical installation shall be designed and installed by a competent person fully in accordance with the latest edition of the ‘Requirements for Electrical Installations,...
  • Page 37 Please check the feed and expansion cistern). SOLAR HEATING SYSTEM ( Torrent RE-Solar and Torrent Direct-Solar ) The generic requirements for a solar heating system are described in sections 3.6. The installation of a solar thermal system should be in accordance with these guidelines and the system manufacturers instructions.
  • Page 38 INSTALLATION Page 38...
  • Page 39 INSTALLATION Page 39...
  • Page 40 INSTALLATION Page 40...
  • Page 41 INSTALLATION Page 41...
  • Page 42 INSTALLATION Page 42...
  • Page 43 INSTALLATION Page 43...

  • Page 44: Commissioning

    COMMISSIONING TORRENT DIRECT MODELS Ensure that the thermal store is filled with water to the water level mark inside the feed and expansion cistern and the ball valve (if fitted) is adjusted correctly. If the ball valve is fitted turn down the service valve once the system is finally filled to the point where the warning/overflow pipe will cope with the discharge arising from a ball valve failure.

  • Page 45: Parts

    COMMISSIONING When using either cleansing or corrosion inhibitor chemical, the manufactures instructions must be followed. When determining the quantities for cleanser required, the volume of the Torrent should be added to the water content of the primary system. Although the Torrent has no special water treatment requirements, the radiators and other parts of the circuit will require the application of a scale and corrosion inhibitor.
  • Page 46 COMMISSIONING DO - Check the incoming mains water pressure. If it exceeds 3.5 bar at any point in the 24 hour cycle then a pressure limiting valve set at 3.5 bar should be fi tted where the cold supply enters the property. DO - Check that all connections are in accordance with the labelling on the thermal store.
  • Page 47 In situations where scale inhibitors have not been fi tted and the hot water service WITH SENTINEL SCALECLEEN has deteriorated a Torrent can be descaled very easily with equipment available from Gledhill. 1. The red solution will be observed in one of the transparent plastic tubes, foam and an You can now do the whole job easily and effi...
  • Page 48 SERVICING Adjustable thermostatic Supplied adaptor mixing valve Into To hot taps/showers Secondary (22mm) Coil Cold mains feed (22mm) From secondary coil Immersion heater Descaler (optional) reservoir Primary Coil Pump * Descaling on site saves time and money * Safe and easy to use * Ensures optimum system efficiency * Prolongs life of heat exchange coil Figure 7...
  • Page 49 SERVICING UNSATISFACTORY Is the mixer Adjust mixer valve setting HOT WATER valve set (turn fully anti-clockwise then PERFORMANCE too low? 1½ - 2 turns clockwise) Is the model Is the boiler Change for suitable for the thermostat larger model hot water set to max? requirement? Is the boiler...
  • Page 50 SERVICING l i c i r c v l l v l l Page 50...
  • Page 51 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 52 Make sure you and This assessment will cover the largest unit within each product range manufactured any others helping know the route by Gledhill. you intend to take that it is clear of any obstructions. Never jerk the load as this will add a little extra force and For specific weights and dimensions please refer to technical data section.
  • Page 53 APPENDIX Page 53...
  • Page 54 AMD. SEPTEMBER 2010 CONDITIONS OF SALE & GUARANTEE TERMS Gledhill (Building Products) Ltd (“We” or “Gledhills”) only do business upon the Conditions which appear (c) Stainless Steel Unvented Cylinders below and no other. Unless we so agree in writing these Conditions shall apply in full to any supply of goods by us...
  • Page 55 PRODUCT DEVELOPMENT to avoid. Gledhill have a policy of continuous product development notwithstanding paragraph (3) hereof and subject to paragraph (7) hereof, the Purchaser shall be permitted to and may introduce product modifications from time to time.
  • Page 56 Hempstead, Huntingdon, Inverkeithing, Liverpool, Maidstone, Nottingham, Paignton, Reading, Southampton. Information on the full range of Gledhill products can be found on the internet at www.gledhill.net Due to a programme of continuous improvement Gledhill Building Products reserve the right to modify products without prior notice.

This manual is also suitable for:

Torrent indirect-ovTorrent-reTorrent combi-preheatTorrent indirect-sp

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