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Page 33

Figure 4.7 Torrent Direct-Solar: Typical solar system wiring

Figure 4.8 Torrent RE-Solar OV: Typical open vented ‘S-plan’ central heating, open vented underfl oor heating and solar heating system

DIA

AMS

HEATING SYSTEM DESIGN

Figure 4.7 Torrent Direct-Solar – Typical solar system wiring

PRV

Solar

pumping

station

Expansion

vessel

Solar panels

IH-1

IH-2

S1 : Solar flow temperature sensor

S2 : Solar zone store temperature sensor

S3 : Store overheat sensor/ thermostat

P1 : Solar circuit pump

IH-1 : Off-peak immersion heater

IH-2 : On-Peak (boost) immersion heater

S1 S2 L N E L N E

Pump

230Vac, 50Hz

supply

L N E

230Vac, 50Hz supply

From double pole

Fused isolator

L N E SL

Junction

box

Solar controller

Overheat

thermostat

(S3)

Figure 4.8 Torrent RE-Solar ‘OV’ :
Typical Open vented ‘S-Plan’ Central heating, Open vented under floor heating, and solar heating system

PRV

Solar pumping
station

Expansion

vessel

Solar panels

230V AC
supply

Solar

controller

Boiler

To hot taps

Cold mains

Under-floor heating
(Open vented)

Central heating (Sealed circuit(

1 : System pump
2 : Hot water zone valve
3 : Under floor heating circuit pump
4 : Central heating zone valve
5 : Automatic bypass valve
7 : Alternative energy input

e.g. wood burning stove flow

8 : Alternative energy return

e.g. wood burning stove return

9 : Immersion heater [Optional]
10 : Store control thermostat

Mixing
valve

Содержание TORRENT COMBI-PREHEAT

Страница 1: ...ctions All models comply with the Hot Water Association specification for thermal stores Please leave these instructions adjacent to the appliance A total hot water and heating thermal store that can also make the most of renewable energy ...

Страница 2: ...ity is built into every Gledhill product and we hope you get satisfactory service from Gledhill If not please let us know Theseinstructionsshouldbereadinconjunction with the Installation and Servicing Instructions issued by the manufacturers of the heat source e g the boiler used Any water distribution and central heating installation must comply with the relevant recommendations of the current ve...

Страница 3: ...t models 4 1 2 Torrent Indirect and RE models 4 2 Water treatment 4 3 Torrent Direct system design 4 4 Torrent Indirect and Torrent RE Solar heating system design 4 4 1 General 4 4 2 Pipe sizing and materials heating system 4 4 3 Boiler size 4 4 4 Open vented heating system 4 4 5 Sealed heating system 4 5 Solar heating systems 4 5 1 General 4 5 2 Torrent Direct Solar 4 5 3 Torrent RE Solar 4 6 Oth...

Страница 4: ...tore as shown in figures 1 1 1 5 The domestic hot water heat exchanger contains its own self replenishing expansion chamber to absorb the expansion of the domestic hot water inside the appliance Unlike unvented storage cylinders the Torrent range of mains pressure hot water units require no annual maintenance or inspection This reduces the running cost for the home owner while offering high perfor...

Страница 5: ...g stove AGA The connections for wood burning stove and any additional connections for other heat sources or additional heating circuits can be specified when placing the order All Torrent RE Solar models are available for use in traditional open vented OV heating systems as shown in figure 1 5 or with an additional primary boiler heat exchanger for use in a sealed primary SP heating systems as sho...

Страница 6: ...d cylinders with up to 400 litre capacity and with enhanced primary heat exchangers and some models have solar option c Stainless Lite BS These are stainless steel buffer stores of up to 400 litre capacity These are designed for use in large domestic and commercial heat pump circuits with operating pressures up to 3 0bar Figure 1 1 Torrent Direct Off Peak Immersion heater On Peak Boost Immersion h...

Страница 7: ...ensor Top DHW Top DHW Bottom DHW Bottom DHW Cold Feed Middle DHW Middle DHW Vent Cylinder Drain Figure 1 3 Torrent Indirect OV Central heating return Immersion heater Optional Cold mains inlet 22 mm Hot water outlet 22 mm Adjustable thermostatic Mixing valve F E Cistern Boiler return Boiler flow Central heating flow Wood burning stove Flow Optional Wood burning stove Return Optional Store thermost...

Страница 8: ...ermostat Wood burning stove Flow Optional Under floor heating return Optional Under floor heating flow Optional Boiler flow Central heating flow Central heating return Boiler return Solar controller sensor pocket Overheat sensor thermostat pocket Figure 1 4 Torrent Indirect SP Immersion heater Optional Cold mains inlet 22 mm Hot water outlet 22 mm Adjustable thermostatic Mixing valve F E Cistern B...

Страница 9: ...w Optional Primary flow Primary return Solar controller sensor pocket Overheat sensor thermostat pocket Solid Fuel Flow Store Overheat ITC Stat Primary Flow Primary Return Solar Flow Solar Return Solar Sensor Top DHW Top DHW Bottom DHW Bottom DHW Solid Fuel Return Cold Feed Immersion Heater Vent Cylinder Drain Direct Boiler Flow Direct Boiler Return Boiler flow Boiler return Figure 1 7 Typical Tor...

Страница 10: ...han the value stated for the model in table 2 1 as illustrated by example 1 below or the dedicated solar volume for the model selected should not be less than the valve 25 x AP where AP is the total net area of the solar panels in m2 as illustrated by example 2 below Example 1 The total floor area AD of the dwelling 130m2 Therefore from table 2 1 the smallest Torrent model that will comply with th...

Страница 11: ... compliance with the Building Regulations relating to solar heating systems For further guidance see Heating system compliance guide 3 Pressure loss characteristics of the primary boiler heat exchanger measured at 0 25 l s flow rate as specified in BS 1566 BS EN 12897 and Performance specification of thermal stores an HWA publication 4 Pressure loss characteristics of the solar heat exchanger meas...

Страница 12: ... and 1 shower room T130IND T170RE 1 For A D up to 55 m 2 2 For A P up to 2 6 m 2 T210RE 1 For A D up to 70 m 2 2 For A P up to 3 0 m 2 2 4 Bedrooms 1 Bathroom and 1 shower room T170IND T200RE 1 For A D up to 70 m 2 2 For A P up to 3 0 m 2 T280RE 1 For A D up to 100 m 2 2 For A P up to 3 8 m 2 3 4 Bedrooms 2 Bathroom and 1 shower room T210IND T280RE 1 For A D up to 100 m 2 2 For A P up to 3 8 m 2 T...

Страница 13: ...p immersion heater litres 70 90 60 Maximum working head Store mWG 10 0 10 0 10 0 Mains cold water inlet pressure range bar 1 5 3 5 1 5 3 5 1 5 3 5 Hot water flow rate 4 litres min 15 15 15 Heat loss factor kWh 24h 2 4 2 5 2 5 Dedicated solar volume litres 70 Area of the solar heat exchanger m 2 1 30 Maximum working pressure solar heat exchanger bar 6 0 Maximum floor area of the dwelling 1 m 2 60 0...

Страница 14: ...00 700 x 600 x 2450 Weight Empty Full kg kg 30 157 37 204 38 243 46 288 Maximum working pressure Store Open vented Heating system Open vented mWG mWG 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 Mains cold water inlet pressure range bar 1 5 3 0 1 5 3 0 1 5 3 0 1 5 3 0 Hot water flow rate 4 l min 18 18 25 25 Typical boiler size required 5 kW 10 15 15 20 20 25 25 30 Heat loss factor kWh 24h 2 8 2 9 2 9 3...

Страница 15: ...6 251 54 296 Maximum working pressure Store Open vented Heating system sealed mWG bar 10 0 3 5 10 0 3 5 10 0 3 5 10 0 3 5 Mains cold water inlet pressure range bar 1 5 3 0 1 5 3 0 1 5 3 0 1 5 3 0 Hot water flow rate 4 l min 18 18 25 25 Typical boiler size required 5 kW 20 20 25 25 Heat loss factor kWh 24h 2 8 2 9 2 9 3 0 Connections Cold feed Open vent Boiler flow return Central heating flow retur...

Страница 16: ...mpty Full kg kg 45 210 49 244 61 326 75 425 85 535 Maximum working pressure head Store Open vented Central heating Open vented mWG mWG 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 Mains water inlet pressure range bar 1 5 3 0 1 5 3 0 1 5 3 0 1 5 3 0 1 5 3 0 Hot water flow rate 1 l min 18 18 25 25 35 Typical boiler size required 2 kW 20 20 25 30 40 Heat loss factor kWh 24h 2 9 2 9 3 1 3 2 3 4 C...

Страница 17: ...ure head Store Open vented Central heating mWG bar 10 0 3 5 10 0 3 5 10 0 3 5 10 0 3 5 10 0 3 5 Mains water inlet pressure range bar 1 5 3 0 1 5 3 0 1 5 3 0 1 5 3 0 1 5 3 0 Hot water flow rate 1 l min 18 18 25 25 35 Typical boiler size required 2 kW 15 20 15 20 20 25 25 30 30 40 Heat loss factor kWh 24h 2 9 2 9 3 1 3 2 3 4 Connections Cold feed Open vent Boiler flow return Central heating flow ret...

Страница 18: ...tern Height x Diameter mm TBA TBA TBA Weight Empty Full kg kg TBA TBA TBA Maximum working pressure open vented store mWG 10 0 10 0 10 0 Mains cold water inlet pressure range bar 1 5 3 0 1 5 3 0 1 5 3 0 Hot water flow rate 4 l min 12 15 12 Heat loss factor kWh 24h 2 8 2 9 2 8 Connections Cold feed Open vent Solar circuit flow return Drain valve 15 mm 22 mm 15 mm R1 2 15 mm 22 mm 15 mm R1 2 15 mm 22...

Страница 19: ...operties e The equipment used in the system should be suitable for a working pressure of 10 bar and the units must be fitted strictly in accordance with the requirements of the Local Water Undertaking and the relevant Water Bylaws 3 2 USE IN HARD WATER AREAS AND SCALE PROTECTION The patented design of the domestic hot water heat exchanger is such that the turbulence through the coil slows down the...

Страница 20: ... are subject to dynamic changes particularly when other hot and cold taps showers are opened and closed which will cause changes in the water temperature at the mixed water outlet such as showers For this reason and because the thermostatic showers are now no more expensive than the manual showers we strongly recommend thermostatic showers with Torrent The shower head provided must also be suitabl...

Страница 21: ...velocity is kept below 3 m s b The water hammer is a pulsating type of noise which may be heard from the pipework installation or the hot water appliance This noise is mainly caused by shock waves which are set up when water which is flowing at high velocity is suddenly stopped e g by rapidly closing tap or an instantaneously closing automatic control valve Pumped water supplies in a building can ...

Страница 22: ...pumped recirculation arrangement TYPICAL HOT AND COLD DISTRIBUTION Check valve NOT REQUIRED unless supply pipe services more than one dwelling Check valve NOT REQUIRED unless scale inhibitor is a chemical type In any event do not fit a check valve down stream of this point see 5 1 9 Pressure limiting valve Not required unless mains pressure is greater than 3 5 bar Supply pipe Second dwelling Sink ...

Страница 23: ...primary water will not contaminate the domestic hot water supply Although the Torrent primary store has no special water treatment requirements the radiators and other parts of the circuit will require the application of a scale and corrosion inhibitor The volumes and concentration should be calculated in accordance with the manufacturers instructions and when calculating the system volume i e the...

Страница 24: ...m are filled and vented before switching on the boiler and the immersion heater if fitted g If the Torrent is heated directly by the boiler e g the OV models then the boiler or system pump must be fitted in the return pipe from the store to the boiler However if the Torrent is heated indirectly by the boiler via a heat exchanger e g the SP models then the boiler system pump must be fitted in the f...

Страница 25: ...0IND T210D T210RE 0 3 5 T280RE 0 4 5 T350RE 0 6 0 T450RE 0 8 0 4 4 4 Open vented heating systems a The open vented primary system is filled via the feed and expansion F E cistern supplied with the Torrent Indirect OV model and therefore it is important that the F E cistern is positioned at least 250mm above the highest point in the system see figures 4 2 4 3 and 4 4 Also ensure that the height of ...

Страница 26: ...cut out thermostat c It is recommended that the F E cistern for the thermal store is fitted at a high level in the same cupboard as the Torrent However it can be fitted remotely up to 10m above the base of the Torrent The F E cistern overflow warning pipe should be installed in a material suitable for a heating system feed and expansion cistern in accordance with BS 5449 d There shall be no perman...

Страница 27: ...or damage to materials Suitable locations are a high temperature receptacle an internal gully or else discharge externally at ground level High level termination from walls or on roofs could cause injury to people or animals below if the valve were to release scalding water or steam d The pipes leading from the safety device to the collector should be rigid and non deformable contraction without a...

Страница 28: ...sion cistern should be sized to accommodate the expansion of total water content of the open vented system i e water content of the store water content of under floor heating circuit e Figures 4 8 and 4 9 also show typical configurations of a solar thermal system with Torrent RE solar which will accumulate the energy from more than one renewable energy sources e g solar wood burning stove In the o...

Страница 29: ...85o C Therefore suitable blending valve and pumping station must be used to protect the under floor heating circuit from high temperature water The additional underfloor tappings can be requested on all other models 4 5 4 OTHER RENEWABLE ENERGY SOURCES TORRENT RE SOLAR The Torrent RE solar models have provision for connecting other alternative energy systems such as an Aga or wood burning stove in...

Страница 30: ...ly Off peak during 00 00 07 00 E7 ON OFF MCB ON OFF MCB B16 ON OFF MCB ON OFF MCB ON OFF MCB Hot Water Top On Peak 3kW Immersion heater Bottom Off Peak 3kW Immersion heater Off peak controller 2 Pole Isolator switch Consumer unit 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 Figure 4 2 Torrent ...

Страница 31: ...iler pump 2 Central heating pump 3 Store thermostat 3 Boiler Return Flow 5 4 Heating flow Heating return 1 Auto air vent 2 Pressure relief valve 3 Automatic bypass valve 4 Heating zone valve 5 System pump 6 Hot water zone valve 7 Store thermostat 1 1 2 Must comply with the Boiler manufacturers minimum head requirements Highest point of system 250mm minimum 3 1 6 7 Figure 4 3 Torrent Indirect OV Ty...

Страница 32: ...Torrent Indirect Typical sealed S Plan heating system Torrent Indirect 1 2 3 5 6 All heating returns must be connected prior to the primary return from the coil Must be fitted Close to boiler 4 2 1 Sealed system kit not supplied comprising Expansion vessel Pressure relief valve Pressure gauge and Approved filling loop 2 System pump 3 3 Port flow share valve 4 Air vent 5 Automatic bypass valve Boil...

Страница 33: ...c 50Hz supply L N E 230Vac 50Hz supply From double pole Fused isolator L N E SL Junction box Solar controller Overheat thermostat S3 E C NC P1 Figure 4 8 Torrent RE Solar OV Typical Open vented S Plan Central heating Open vented under floor heating and solar heating system PRV Solar pumping station Expansion vessel Solar panels S2 S1 S3 230V AC supply Solar controller Boiler 3 To hot taps Cold mai...

Страница 34: ... Y plan central heating open vented underfloor heating and solar heating system Figure 4 10 Torrent RE Solar OV Typical installation of a multi fuel stove Figure 4 9 Torrent RE Solar SP Typical sealed Y Plan Central heating open vented under floor heating and solar heating system PRV Solar pumping station Expansion vessel Solar panels S2 S1 S3 230V AC supply Solar controller Boiler 1 Must be fitte...

Страница 35: ...s necessary to locate the cistern in a roof space or on a higher floor then it must not be fitted more than 6m above the base of the Torrent If the feed and expansion cistern is installed in a roof space or unheated part of the dwelling then any pipework and the feed and expansion cistern will need to be adequately insulated to protect against frost damage The F E tank supplied will not be large e...

Страница 36: ...evant heating equipment being installed b If the optional immersion heater is fitted to the Torrent then wiring to it must be in accordance with the relevant IEE Wiring regulations and the circuit must be protected by a suitable fuse and a double pole isolating switch c Both Torrent Indirect and Torrent RE Solar OV and SP models can be installed and wired using either Y Plan S Plan control systems...

Страница 37: ...ant conditions A method of achieving this is shown in the appropriate wiring diagram d It is advisable that a boiler hold off device is fitted to maximise the utilisation of solar energy by limiting the unnecessary operation of the boiler A method of achieving this is shown in the appropriate wiring diagram 5 5 OTHER ALTERNATIVE ENERGY SOURCES e g Wood burning stove a The Torrent RE Solar models h...

Страница 38: ... E SL L N boiler pump CH HW Programmer HW OF HW ON CH OF CH ON L N 1 4 3 2 Br Br Room thermostat ON OF 1 E 2 4 3 Store stat ON OF C E 1 2 G N E Bl 3 Port Flow share valve 1 2 3 4 5 6 7 8 9 10 11 12 Wh Grey Or Junction box 3 Port valve flex E N Figure 5 1 Torrent Indirect Torrent RE solar Y Plan heating control system wiring diagram ...

Страница 39: ...FF CH ON L N 1 4 3 2 Br Br Room thermostat ON OF 1 E 2 4 3 Store stat ON OFF C E 1 2 1 2 3 4 5 6 7 8 9 10 11 12 Central heating Zone valve L N E S1 Bl G Y Br Or an ge Gr ey Junction box Zone valve flex E N Hot water heating Zone valve L N E S1 Bl G Y Br Or an ge Gr ey Zone valve flex Figure 5 2 Torrent Indirect and Torrent RE Solar example wiring diagram for S Plan heating control system ...

Страница 40: ...n Solar controller Overheat thermostat S3 L N E L N E S2 S1 Solar Pump 230Vac 50Hz supply L N E SL E C 1 2 on off NOTE With some solar controllers the overheat protection is provided by a temperature sensor S3 which is wired directly to the solar controller same as sensors S1 and S2 In this case the mechanical overheat thermostat S3 shown in this diagram is not required and The solar pump is wired...

Страница 41: ...ture sensor S3 Store overheat temperature sensor Thermostat P1 S2 S3 Torrent RE E C 1 2 on off NOTE With some solar controllers do not have overheat sensor S3 as shown above In this case the mechanical overheat thermostat S3 may used and wired as shown in figure 4 4 to protect the store from over heating by stopping the solar Pump at pre set temperature limit Boiler hold off pipe thermostat Type L...

Страница 42: ...nd domestic hot water heating demand supplied by an open vented gas oil boiler and solar thermal system When CT1 is hot i e MFS is operating Central heating and domestic hot water heating demand supplied by an open vented Multi Fuel Stove and solar thermal system Solar energy To maximise utilisation of solar energy the operation of the boiler can be held off by using the HW channel of the programm...

Страница 43: ...H ON CH OFF L N E HW ON HW OFF CH ON CH OFF L N E N E SL L N E SL L C E NC NO C E NC NO C E NC NO C E NC NO C E NC NO Room thermostat CH HW Programmer Store control Thermostat CT3 Boiler wiring terminals E N L SL L N E boiler pump E N L SL L N E E N L SL L N E boiler pump MFS Pipe thermostat CT1 MFS store thermostat CT2 E N L E N L E N L NC Zone valve V3 NO Zone valve V4 230V ac supply L N E 2 Pol...

Страница 44: ...in the feed and expansion cistern before switching on the immersion heaters Dry firing the elements will cause premature failure which is not covered by our warranty 6 2 NON ELECTRIC TORRENT MODELS a Open the incoming stop valve and fill the domestic hot water system For open vented heating system fill the whole of the primary heating system and the thermal store with potable water through the fee...

Страница 45: ...um Set the boiler system pump to give temperature difference across the boiler between 8 15o C Switch on the system and to ensure full cleansing circulation to all parts of the system should continue for a minimum of 1 hour Flush the system hot having checked that there is no overflow or leaks when the system is up to temperature Refill and vent the system and add appropriate amount of scale inhib...

Страница 46: ...s set to maximum for all boilers DO Ensure that the water level in the expansion cistern is at least 250mm above the highest point on the radiator circuit and satisfies the boiler head required DO Insulate any exposed pipework in the Torrent cupboard DO Plumb the overflow warning pipe in 20mm minimum internal diameter tubing to discharge in a conspicuous external position using high temperature uP...

Страница 47: ...he unions are finger tight on the BSP male connectors to the adaptor 13 Loosen the filling cap on the Decalomat 3 to allow carbon dioxide formed in the descaling process to escape 14 PlugtheDecalomat 3toa240V50Hzelectricsupply ThepumpintheDecalomat will now circulate the coloured descaling solution through the heat exchanger coil of the Torrent Depending on the degree of scale formation within the...

Страница 48: ... Coil Supplied adaptor From secondary coil Descaler reservoir Pump Descaling on site saves time and money Safe and easy to use Ensures optimum system efficiency Prolongs life of heat exchange coil Adjustable thermostatic mixing valve To hot taps showers 22mm Cold mains feed 22mm Immersion heater optional Primary Coil ...

Страница 49: ...t too low Is the boiler output at least 10 more than the rad loading Does the boiler flow reach temperature Is the boiler thermostat adjustable Correct Torrent thermostat setting set to 75ºC Report to the boiler manufacturer Adjust to maximum Descaling required Is heat exchanger scaled up internally Indicated by reduction of flow rate Alter pipe sizes Does the temp rise across the boiler exceed 11...

Страница 50: ...v l a v l l a B 7 0 2 T F 5 0 5 0 7 3 2 t a o l F e v l a v l l a B 9 2 4 T F 6 0 5 0 7 3 3 a w a r B e v l a V g n i x i M 7 0 0 C X 2 7 8 5 8 3 4 e v l a v g n i x i m r o f t e k s a g g n i r e r a p S 8 0 0 C X 7 0 5 0 7 3 5 W k 3 r e t a e h n o i s r e m m I 8 7 0 B X 4 8 1 9 3 E 6 t a t s o m r e h T l o r t n o C 0 1 0 C X 7 8 9 ...

Страница 51: ...ood House 40 New Road Stourbridge West Midlands DY8 1PA TELEPHONE 01384 442611 FAX 01384 442612 Water Savings Water Related Costs Can Be Reduced By Good Plumbing Practice TAPS MIXERS SHOWERS Unregulated 25 30 l m Regulated 10 12 l m Over 20 l m 5 6 or 8 l m 2 tap half open Fitted with regulator Unregulated 4 Fixing Options For Taps Mixers 1 MK Range Combined Regulators Aerator forscrewingontoTaps ...

Страница 52: ...e lifting ensure you have a good hold e Taking the lead for team lifts As more than one person is required for these products ensure that one person is taking the lead This may be you so ensure that each person that is helping is made aware of the weight and of the items listed within this assessment Make sure you and any others helping know the route you intend to take that it is clear of any obs...

Страница 53: ...Page 53 APPENDIX C APPENDIX ...

Страница 54: ...etailed in the installation and service instructions 9 2 6 Defects caused by corrosion or scale deposits are not covered by any Guarantee 9 2 7 Where we agree to rectify any defect we reserve the right to undertake the work on our own premises 9 2 8 We will not accept any labour charges associated with replacing the unit or parts for any of the following products listed 9 3 Guarantees are provided...

Страница 55: ...oods in the Purchaser s possession and in a manner which enables them to be identified as our goods ii the Purchaser shall immediately return the goods to us should our authorised representative so request All the necessary incidents associated with a fiduciary relationship shall apply d the Purchaser s right to possess the goods shall cease forthwith upon the happening of any of the following eve...

Страница 56: ...Gledhill Building Products reserve the right to modify products without prior notice It is advisable to check the product technical detail by using the latest design and installation manuals available from our technical support team or on our website Issue 02 06 10 Our appliances are distributed through Gledhill Building Products depots at Blackburn Bristol Dudley Hemel Hempstead Huntingdon Inverk...

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