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 RW GB 300 BES 0010019233 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 dimensionsSlimline Remove the product from its box. Validity: VIH RW GB 150 BES Remove the protective film from all of the product's components. Caution. Risk of material damage caused by un- packing incorrectly. The components could become damaged when unpacking the product.
5 Installation Installation Product dimensions, standard diameter Validity: VIH RW GB 200 BES Installing the product OR VIH RW GB 250 BES ▶ Align the product horizontally. OR VIH RW GB 300 BES Hydraulic connection Caution. Risk of damage caused by heat transfer when welding.
Page 9
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 Cylinder heating return Cylinder heating inlet to the supplied tundish via 15-mm-thick copper pipes.
Page 10
5 Installation age point. According to the table, the maximum permiss- Validity: Except for VIH RW GB 150 BES ible resistance for a straight length of a 22-mm-thick cop- per discharge pipe (D2) of a thermal expansion relief valve Condition: With a multi-functional module or control G1/2 is 9.0 m.
If you are using a control from another brand, use the op- tional cylinder thermostats. ▶ Do not drill through the product. The thermostat connections make it possible to install a con- nection box in addition to the Vaillant control. 0020221303_02 uniSTOR HP Installation and maintenance instructions...
Page 12
5 Installation 5.3.3 Thermostats Validity: VIH RW GB 150 BES 60 50 60 50 Thermal cut-out and re- Setting the temperature set knob for the immer- of the primary circuit sion heater Immersion heater tem- Thermal cut-out and re- perature control ▶...
Page 13
Installation 5 Install a separate power supply for the immersion Condition: S plan heater in accordance with the applicable standards. Use heat-resistant cables for the immersion heater con- nection. – Diameter of the cable: 1.5 mm² Connect the thermal cut-out to the mains power supply using a double-pole disconnector with a contact gap of at least 3 mm at both poles.
6 Start-up Condition: Y plan Condition: Without a multi-functional module or control ▶ Set the domestic hot water temperature as desired. Condition: With multi-functional module or control ▶ Set the immersion heater thermostat (1) to its maximum. The temperature of the immersion heater is regulated via the temperature sensor that is installed on the carrier in the electronics box.
To ensure regular servicing, it is strongly recommended that arrangements are made for a Maintenance Agreement. Adhere to the minimum inspection and maintenance inter- Please contact Vaillant Service Solutions for further details: vals. The inspection may require maintenance to be carried Telephone: 0330 100 3461 out earlier, depending on the results.
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 Technical data Technical data – General VIH RW GB VIH RW GB VIH RW GB VIH RW GB 150 BES 200 BES 250 BES 300 BES Actual volumetric capacity 139.5 l 190.7 l 236.3 l 273.5 l Hot water volumetric capa- 127.0 l 172.5 l 211.0 l...
Page 18
Appendix VIH RW GB VIH RW GB VIH RW GB VIH RW GB 150 BES 200 BES 250 BES 300 BES Temperature dry pocket 8 mm 8 mm 8 mm 8 mm Immersion heater diameter 1" 1 1/4" 1 1/4" 1 1/4"...
Appendix Commissioning Checklist 0020221303_02 uniSTOR HP Installation and maintenance instructions...
Page 20
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.
Page 21
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 ............
Need help?
Do you have a question about the uniSTOR HP VIH RW GB BES Series and is the answer not in the manual?
Questions and answers