Vaillant uniSTOR VIH GB 125 S Instructions For Installation And Use Manual
Unvented hot water storage cylinder
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Summary of Contents for Vaillant uniSTOR VIH GB 125 S
- Page 1 Instructions for Installation and Use uniSTOR Unvented hot water storage cylinder VIH GB 125 S VIH GB 155 S VIH GB 180 S VIH GB 210 S VIH GB 260 S VIH GB 310 S...
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Page 2: Table Of Contents
Contents Page Page Description ..... . Commissioning ....20 DHW Temperature Control . -
Page 3: Description 1
Description 1 1 Description 1.4 Applications The Vaillant uniSTOR can be connected to any UK The uniSTOR range of unvented hot water storage standard boiler. cylinders are indirectly heated cylinders which are designed for use with UK standard boilers in hot water 1.5 Typical applications... -
Page 4: Technical Data
2 Technical data 2 Technical data VIH GB 125 S VIH GB 155 S VIH GB 180 S VIH GB 210 S VIH GB 260 S VIH GB 310 S Unit Size litres Maximum water supply pressure Operating pressure Pressure reducing valve Expansion relief valve Expansion vessel charge pressure T/P valve... - Page 5 Technical data 2 VIH GB 310 S Cylinder Heat Up Times VIH GB 260 S VIH GB 210 S VIH GB 180 S VIH GB 155 S VIH GB 125 S Heat input to cylinder (kW) Fig. 1 Cylinder heat up times uniSTOR GB...
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Page 6: Instructions For Use
3.3 How to use your uniSTOR hot water cylinder Please read these instructions carefully to ensure that you get the very best out of your Vaillant heating and Your boiler and uniSTOR unvented hot water cylinder hot water system. -
Page 7: Immersion Heater
Group Service (0870 - 6060777) for further details. 3.6 Guarantee Vaillant offers a guarantee of 25 years for the stainless steel vessel against faulty materials or maufacture. The following information is important as without it your guarantee may be invalid. -
Page 8: Note To Installers
In the event of parts replacement, A scondary return connection is provided in the water use only genuine spare parts supplied by Vaillant Ltd. control pack. Connect onto the 1/2“ pipe on the control group using a WRAS approved circulation pump which incorporates a 4.1 Secondary System... -
Page 9: Installation 5
– The discharge pipe from the tundish can be installed The primary circuit pipework between the Vaillant boiler with a minimum fall of 1:200 and must be terminated and the uniSTOR should be installed using copper tube in a safe and visible position (see section 4.1.4... -
Page 10: High Level Termination
Total Resistance = 10.2 m The discharge pipe from the pressure relief valve of the Vaillant boiler may be teed-into the discharge pipework The total resistance of the discharge pipework is from the uniSTOR downstream of the tundish in the greater than the maximum allowed for 22 mm horizontal pipework. -
Page 11: Dimensions
Installation 5 5.2 Dimensions DHW outlet Temperature and pressure relief valve Immersion heater Primary flow Cold water mains inlet 45° Primary return Additional immersion heater (for uniSTOR 260 and 310; as accessory) Fig. 4 (all dimensions in mm) VIH GB 125 S –... -
Page 12: Functional Diagrams
5 Installation 5.3 Functional diagrams Fig. 5 Boiler uniSTOR cylinder 2 port motorised valve (provided with the boiler) Immersion heater 2 port motorised valve Boiler flow Boiler return uniSTOR GB... - Page 13 Installation 5 Fig. 6 Temperature and pressure relief valve Expansion relief valve Pressure limiting valve combined with strainer Secondary return connection Balanced pressure cold water outlet Cold water mains inlet DHW outlet Tundish Cylinder drain point Expansion vessel uniSTOR GB...
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Page 14: Installation Procedure
5 Installation • 5.4 Installation procedure Install the drain valve in the cold mains supply • Unpack the uniSTOR cylinder and check the contents between the uniSTOR cylinder and the cold water (detailed in section 4: notes to installers). control valves at the lowest point. •... -
Page 15: Safety Valve Discharge Pipework
Notes: 1) flow rates shown apply to situations where the supply is capable of supplying an adequate dynamic pressure. 3) where static water pressures are less than 1 bar, consult Vaillant Ltd. * static supply pressure of incoming water supply. -
Page 16: Electrical Connections And Controls
Only a correct genuine Vaillant spare part is permitted. 5.4.5.1 Immersion Heater All uniSTOR cylinders with a volume of 260 l or 310 l are The uniSTOR VIH 125 - 310 cylinders are equipped with a provided with an additional boss to fit a second factory fitted immersion heater. -
Page 17: Connection Details For Control Systems Utilising 2 X 2 Port Motorised Valves Via
WATER WATER External wiring box (Do not use pre-wired printed circuit board type) not used Room thermostat Vaillant VRT 9090 ACL Drayton Digistat 2, 3, 4 uniSTOR Cylinder ACL Drayton RTS 1, 2 Danfoss Randall RX-1 Danfoss Randall RMT 230... - Page 18 5 Installation Lifestyle LP241, LP 522, LP 722 not used Tempus 6, Tempus 7 not used Danfoss Randall CP 715, FP715 Note: *Earth not required not used Danfoss Randall Set 2E, Set 3E Note: *Earth not required not used not used Link L - 2 - 5 Grässlin Towerchron QE2 not used...
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Page 19: Connection Details For Connection To
Installation 5 5.4.5.4 Connection details for connection to any UK standard boiler Main Supply Boiler Terminal 2 Channel Programmer 3 Amp Fused 1/N 2/L PL PN FS RS PL PN PE External wiring box (Do not use pre-wired printed circuit board type) Pump not used BL BR... -
Page 20: Commissioning
6 Commissioning 6 Commissioning 6.2 Filling the Primary Circuit 6.1 Filling Secondary DHW Circuit Note: Do not use boiler pressure relief valve for Note: venting purposes. Do not manually open the temperature and • pressure relief valve or expansion relief valve for The complete primary CH system must be flushed out venting purposes (any foreign matter in the with both cold and hot water. -
Page 21: Operating The Boiler
• Ensure that the programmer and thermostats are The following maintenance work has to be carried out calling for heat. annually by the competent installer or Vaillant Service • Check that the boiler fires and heats the cylinder Solutions. contents and the radiators according to the DHW and •... -
Page 22: Fault Finding
8 Fault finding 8 Fault finding Note: Only genuine spare parts supplied by Vaillant Limited must be used. Fault A: The water from the cylinder is cold. Does boiler operate? Do external controls Remedy fault function? according to boiler instructions. - Page 23 Fault finding 8 Fault B: Water discharging from expansion relief valve. Manually reset / seat expansion relief valve. Is discharge still occuring? Is the discharge occuring only when the cylinder is being heated? Turn off boiler and Reset pressure in NOT OK Check pressure charge immersion heater.
- Page 24 8 Fault finding Fault C: Water discharging from temperature/ pressure relief valve (TPRV). Manually reset the TPRV. Is discharge still occuring? Check temperature control Remedy fault Is discharge occuring only when the boiler is in use? of boiler. according to boiler instructions.
- Page 25 Fault finding 8 Fault D: Deteriorating water pressure and flow from hot water terminal fittings. Check incoming main water pressure. Inform customer to have water service Poor checked by water undertaker. Check line strainer Clean / replace strainer. Dirty (in pressure limiting valve). Check pressure limiting valve.
- Page 28 Head Office: Vaillant Ltd. Vaillant House Medway City Estate Trident Close Rochester Kent ME2 4EZ Technical Advice 01634 292392 Service Solutions 0870 6060 777...