Safety 1 Safety for the product and any other system com- ponents Action-related warnings – installing and setting up the product in ac- Classification of action-related warnings cordance with the product and system ap- proval The action-related warnings are classified in –...
1 Safety 1.4.4 Risk of material damage caused by using an unsuitable tool ▶ Use the correct tool. 1.4.5 Risk of material damage caused by frost ▶ Do not install the product in rooms prone to frost. 1.4.6 Risk of injury due to the heavy weight of the product ▶...
VIH GB 300/3 BES 0010019214 Benchmark Vaillant is a licensed member of the Benchmark Scheme. Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in accordance with the manufacturer’s instructions by a competent person approved...
Hot Water Association Install the product in such a way that the thermostat and immersion heater can be accessed easily. Vaillant is a full member of the Hot Water Association and – Leave sufficient space around the product for installing, promotes the scheme in association with its cylinder range.
Set-up 4 Unpacking the product Product dimensions,slimline Remove the product from its box. Validity: VIH GB 120/3 BES Remove the protective film from all of the product's OR VIH GB 150/3 BES components. Caution. Risk of material damage caused by un- packing incorrectly.
5 Installation Installation Product dimensions, standard diameter Validity: VIH GB 180/3 BES Setting up the unit horizontally OR VIH GB 200/3 BES ▶ Align the product vertically by adjusting the adjustable OR VIH GB 250/3 BES feet. OR VIH GB 300/3 BES Hydraulic connection Caution.
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Installation 5 5.2.4 Installing a discharge pipe ≥ 300 mm Temperature and pres- Tundish sure expansion relief valve The drain connections of the temperature and pressure re- lief valve and the expansion relief valve must be connected Heat generator heating Domestic hot water return outlet...
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5 Installation age point. According to the table, the maximum permiss- Validity: Except for VIH GB 120/3 BES ible resistance for a straight length of a 22-mm-thick cop- OR Except for VIH GB 150/3 BES per discharge pipe (D2) of a thermal expansion relief valve G1/2 is 9.0 m.
Installation 5 5.2.6 Installing a secondary return Validity: VIH GB 250/3 BES OR VIH GB 300/3 BES 60 50 60 50 Immersion heater Primary circuit thermo- stat Immersion heater ther- Retainer for the temper- mostat ature sensor 5.3.1 Optional combination of thermostats Use the wiring diagram in the system instructions for the T-piece for the second- Secondary return pipe...
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5 Installation 5.3.3 Cable route 5.3.4 Connecting the immersion heater to the power supply Validity: Except for VIH GB 120/3 BES OR Except for VIH GB 150/3 BES 60 50 60 50 ▶ Use the grommets that are included in the scope of delivery for the cylinder in the electronics box.
Start-up 6 5.3.6 Connecting the control Condition: Y plan Condition: eBUS The thermal cut-out for the primary circuit is not used when connecting an eBUS unit. Condition: 230 V control If you use a 230 V control from a third-party manufacturer, connect the thermal cut-out (2) and (3) for the primary circuit with the 2-way motorised valve to isolate the heat source in the event of a fault in the 2-way motorised valve.
7 Handing the product over to the end user – Setting the thermostats: 60 ℃ Condition: Without a multi-functional module or control Start up the heat generator. ▶ Set the domestic hot water temperature as desired. Drain the heating circuit as soon as the operating temperature has been reached in order to remove any Condition: With multi-functional module or control residue from the heating installation.
11 Customer service To ensure regular servicing, it is strongly recommended that arrangements are made for a Maintenance Agreement. Please contact Vaillant Service Solutions for further details: Telephone: 0330 100 3461 0020221302_02 uniSTOR Installation and maintenance instructions...
Appendix Appendix Detecting and eliminating faults Fault Possible cause Remedy No flow rate at the valve Water supply valve closed Check and open the valve. Main filter blocked Close the water supply valve, clean the filter and the water pressure reducer. Pressure reducer not installed correctly Check whether the pressure reducer has been installed correctly.
Appendix Commissioning Checklist 0020221302_02 uniSTOR Installation and maintenance instructions...
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Appendix MAINS PRESSURE HOT WATER STORAGE SYSTEM COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the storage system as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference. Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights.
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Appendix SERVICE RECORD It is recommended that your hot water system is serviced regularly and that the appropriate Service Record is completed. Service Provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. SERVICE 01 SERVICE 02 Date:...
Index Index Article number ............... 5 Basic diagram................ 3 CE marking................5 Checking the pre-charge pressure of the expansion vessel .................. 15 Competent person..............3 Decommissioning ..............15 Decommissioning the product ..........15 Discharge pipe ..............9 Documents ................5 Draining the product ............