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  4. ITD 130
  5. Technical And Installation Manual

GAH ITD 130 Technical And Installation Manual

Summary of ITD 130

  • Page 1

    1 tttttechnical and installation manual echnical and installation manual echnical and installation manual echnical and installation manual echnical and installation manual all models for owners, installers and service engineers heating products.

  • Page 2

    2 important health and safety information for installers and service engineers health and safety at work act 1974 consumer protection act 1987 coshh regulations 1988 the following information is given as a requirement of the above legislation. Great care is taken by gah (heating products) limited to...

  • Page 3: Contents

    3 contents contents contents contents contents 1 introduction 1 introduction 1 introduction 1 introduction 1 introduction 2 opera 2 opera 2 opera 2 opera 2 operator controls tor controls tor controls tor controls tor controls 3 technical informa 3 technical informa 3 technical informa 3 technical in...

  • Page 4: Introduction      1

    4 1-1 introduction introduction 1 introduction 1 introduction 1 introduction 1 introduction 1 11111 1-1.1 the dualstream system the dualstream systems by gah heating products have been developed as an advanced solution for domestic hot and cold water installations. A dualstream system will increase ...

  • Page 5: Introduction      1

    5 outside tap water softener boiler flow boiler return check valve combination valve hot water supply to taps expansion discharge htpv drain drain accumulator unvented cylinder balanced cold supply to taps incoming mains supply single check valve tundish prv heating system fill kitchen sink cold tap...

  • Page 6: 11111

    6 11111 primary heat source (solar) flow hot water supply to taps htpv drain accumulator unvented twin coil cylinder balanced cold supply to taps auxiliary heat source (boiler) flow auxiliary heat source (boiler) return primary heat source (solar) return expansion vessel introduction 1 introduction ...

  • Page 7: Introduction      1

    7 introduction 1 introduction 1 introduction 1 introduction 1 introduction 1 note the accumulator model is designated as its gross volume, the actual water content of the accumulator is up to 65% of its gross volume. Gah offer a range of quality water softeners, for information contact gah (heating ...

  • Page 8: Opera

    8 water heater opera opera opera opera operator controls 2 tor controls 2 tor controls 2 tor controls 2 tor controls 2 2-1 hot water temperature - heating system fig. 2-1a typical hot water control n l 1 2 2-1.1 hot water control - heating system when the hot water is heated by the heating system th...

  • Page 9: Opera

    9 2-3 hot water overheating opera opera opera opera operator controls 2 tor controls 2 tor controls 2 tor controls 2 tor controls 2 2-3.1 water heated by heating system when the hot water is heated by the heating system a thermal cut-out thermostat prevents the water within the cylinder overheating....

  • Page 10: Opera

    10 opera opera opera opera operator controls 2 tor controls 2 tor controls 2 tor controls 2 tor controls 2 n l 1 2 fig. 2-3b 125, 150, 210 & 300 immersion heater thermal cut-out thermal cut-out reset 'bipolar safety' fig. 2-3c 500 immersion heater thermal cut-out thermal cut-out reset 's' if the imm...

  • Page 11: Opera

    11 cold water shut off valve hot water shut off valve supply water shut off valve outside tap water softener boiler flow boiler return expansion discharge htpv drain drain accumulator unvented cylinder balanced cold supply to taps incoming mains supply single check valve prv heating system fill kitc...

  • Page 12: Opera

    12 opera opera opera opera operator controls 2 tor controls 2 tor controls 2 tor controls 2 tor controls 2 the dualstream installation has a tpr valve normally mounted on the cylinder. In the event of the pressure within the system becoming too high, the tpr valve will vent. A tundish will be fitted...

  • Page 13: 33333

    13 3-1 specifications 3-1.1 cylinders 33333 *500 cylinders the immersion heaters can be converted to 3 phase - consult gah for further information. > l e d o m r e d n il y c t c e ri d t c e ri d t c e ri d t c e ri d t c e ri d t c e ri d n i t c e ri d n i t c e ri d n i t c e ri d n i t c e ri d...

  • Page 14: Technical Informa

    14 3-1.2 accumulator membrane .................................................................................... Butyl for potable water maximum pressure ............................................................................................. 7.0 bar minimum pressure ............................

  • Page 15: Technical Informa

    15 3-2 dimensions technical informa technical informa technical informa technical informa technical information 3 tion 3 tion 3 tion 3 tion 3 3-2.1 accumulator dimensions * water content is up to 50-55% of the accumulator volume. Total weight = weight empty + water content @ 1kg/litre. Fig. 3-2a acc...

  • Page 16: Technical Informa

    16 technical informa technical informa technical informa technical informa technical information 3 tion 3 tion 3 tion 3 tion 3 3-2.2 standard direct and indirect cylinder dimensions 45° Øb hot water to taps -28mm cold supply -28mm boiler flow -28mm boiler return -28mm 800 a c d tprv 500 maximum expa...

  • Page 17: Technical Informa

    17 Øb a g f hot water to taps -22mm cold supply -22mm primary heat souce flow (solar) boiler return -22mm expansion discharge 500 maximum tprv c d boiler flow -22mm primary heat souce return (solar) 40° 10° e r e d n il y c l e d o m l a n i m o n y ti c a p a c ) r a l o s ( li o c m o tt o b li o ...

  • Page 18: Technical Informa

    18 3-3 wiring technical informa technical informa technical informa technical informa technical information 3 tion 3 tion 3 tion 3 tion 3 3-3.1 immersion heater - 500 cylinders fig. 3-3a immersion heater wiring diagram - 500 cylinder 500 cylinders have three 2kw immersion heater elements (total 6kw)...

  • Page 19: Technical Informa

    19 technical informa technical informa technical informa technical informa technical information 3 tion 3 tion 3 tion 3 tion 3 3-3.3 cylinder thermostats 3-3.4 protech anti-corrosion system (500 non stainless steel only) fig. 3-3c cylinder thermostats wiring diagram - 125, 150, 210 and 300 cylinders...

  • Page 20: 44444

    20 44444 4-1 building control inst inst inst inst installa alla alla alla allation 4 tion 4 tion 4 tion 4 tion 4 4-2 installation note in some areas it is a criminal offence to install an unvented hot water storage system without notifying the local authority, or without the relevant licence. To ins...

  • Page 21: Inst

    21 inst inst inst inst installa alla alla alla allation 4 tion 4 tion 4 tion 4 tion 4 4-2.3 combination valve the combination valve is supplied pre assembled with pipework to the unvented cylinder. 22mm supply 15mm to tundish expansion relief set at 6 bar 22mm supply to cylinder expansion relief set...

  • Page 22: 44444

    22 44444 inst inst inst inst installa alla alla alla allation 4 tion 4 tion 4 tion 4 tion 4 4-2.5 accumulator the accumulator may be installed at any convenient location within the dwelling, outhouse, garage, loft or basement. In normal circumstances the accumulator should be installed vertically. W...

  • Page 23: Inst

    23 inst inst inst inst installa alla alla alla allation 4 tion 4 tion 4 tion 4 tion 4 4-3.1 tundish the tundish must be vertical and fitted within 500mm of the temperature and pressure relief valve and must be located with the cylinder. The tundish must also be in a position visible to the occupants...

  • Page 24: 44444

    24 44444 fig. 4-3b typical expansion discharge arrangement 4-3.4 hydraulic resistance of discharge pipework - table 1 300 min continuous fall metal discharge pipe d1 to tundish - 15mm fixed grating tundish metal discharge pipe d2 from tundish tpr valve trapped gully combination valve 500 max e zi s ...

  • Page 25: Inst

    25 inst inst inst inst installa alla alla alla allation 4 tion 4 tion 4 tion 4 tion 4 4-4 larger systems for larger systems two or more accumulators and cylinders can be linked together. For mor for mor for mor for mor for more information consult gah (heating products) limited. E information consul...

  • Page 26: 44444

    26 44444 inst inst inst inst installa alla alla alla allation 4 tion 4 tion 4 tion 4 tion 4 4-5 system pressure fig. 4-5a pressure diagram notes on pressures:- 1. The additional pressure reducing valve should be fitted to the incoming main. 2. To maintain maximum mains pressure to the kitchen tap an...

  • Page 27: Inst

    27 inst inst inst inst installa alla alla alla allation 4 tion 4 tion 4 tion 4 tion 4 4-6 parts supplied 1 2 3 4 6 5 7 8 4-6.1 all models except 500 1 3 4 6 5 7 8 4-6.2 500 only m et i tr a p yt q s et o n 1 r e d n il y c 1 d e b m u lp - er p r et a e h n o is r e m m i w / c 2 te e f r e d n il y...

  • Page 28: 44444

    28 44444 inst inst inst inst installa alla alla alla allation 4 tion 4 tion 4 tion 4 tion 4 fig. 4-6a typical dualstream connections domestic hot water 22mm fit 22mm ball valve - supplied domestic cold water 22mm fit 22mm ball valve - supplied mains supply 22mm fit 22mm ball valve - supplied tundish...

  • Page 29: Inst

    29 inst inst inst inst installa alla alla alla allation 4 tion 4 tion 4 tion 4 tion 4 fig. 4-6b typical dualstream connections 4-6.4 connections to dualstream - 500 cylinder domestic hot water 28mm fit 28mm ball valve - supplied domestic cold water 28mm fit 28mm ball valve - supplied mains supply 28...

  • Page 30: 55555

    30 55555 commissioning 5 commissioning 5 commissioning 5 commissioning 5 commissioning 5 5-1 commissioning checks important it is the responsibility of the installer to ensure that the dualstream system is properly commissioned. Should the commissioning not be carried out, then the manufacturers gua...

  • Page 31: Commissioning     5

    31 commissioning 5 commissioning 5 commissioning 5 commissioning 5 commissioning 5 5-2 handing over complete the guarantee form, the top sheet of this must be sent to gah (heating products) limited. Complete the benchmark logbook. The installer should re-check the system and ensure it is completely ...

  • Page 32: Servicing     6

    32 servicing 6 servicing 6 servicing 6 servicing 6 servicing 6 the dualstream system should have a routine service at least once in 12 months. Important always turn off the heating system and electricity supply to the dualstream before working on the dualstream system. 6-1.1 service procedure 1. Con...

  • Page 33: Fffffaul

    33 fffffaul aul aul aul ault finding 7 t finding 7 t finding 7 t finding 7 t finding 7 7-1 fault finding - also see www.Gah.Co.Uk 1. Check the mains supply has not been interrupted from the main. 2. Check the stop cock and all valves on the mains supply are correctly installed. 3. Check the stop coc...

  • Page 34

    34 notes.

  • Page 35

    35 notes.

  • Page 36

    36.

  • Page 37

    37 gah (heating products) ltd. Building 846, bentwaters parks, rendlesham, woodbridge, suffolk ip12 2tw www. Gah.Co.Uk tel: 01394 421160 fax: 01394 421170 email: mail@gah.Co.Uk heating products.