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VIESMANN Installation instructions for contractors Vitocell 300-V/W Type EVIA-A DHW cylinder with internal indirect coil 160 to 500 l VITOCELL 300-V/W Dispose after installation. 5791 762 GB 3/2017...
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Repair work Please note Repairing components that fulfil a safety func- tion can compromise the safe operation of the system. Replace faulty components only with genuine Viessmann spare parts.
Index Information Disposal of packaging ................Symbols ....................Intended use ..................Product information ................Preparing for installation Connections ................... Information on transport and siting ............300 and 500 l capacity: Setting up the DHW cylinder with immersion ■ heater ....................Installation sequence 160, 200, 300 l capacity .................
Please dispose of packaging waste in line with statu- tory regulations. DE: Use the disposal system organised by Viessmann. AT: Use the ARA statutory disposal system (Altstoff Recycling Austria AG, licence number 5766). CH: Packaging waste is disposed of by the HVAC contractor.
Intended use The appliance is only intended to be installed and Any usage beyond this must be approved by the man- operated in sealed unvented systems that comply with ufacturer for the individual case. EN 12828 / DIN 1988, or solar thermal systems that comply with EN 12977, with due attention paid to the Incorrect usage or operation of the appliance (e.g.
Connections Fig. 1 160, 200, 300 litres Cylinder temperature sensor (160 and 200 l, below Fig. 2 500 litres the thermal insulation) High limit safety cut-out (below the thermal insula- tion) DHW circulation DHW circulation Cylinder temperature sensor or temperature con- Clamp (behind the thermal insulation) for cylinder troller (300 l) temperature sensor or temperature controller...
Information on transport and siting (cont.) 300 and 500 l capacity: Setting up the DHW cylinder with immersion heater Fig. 3 Immersion heater installation instructions Maintain the minimum clearance. Cylinder capacity Dim. a 300 l 730 mm 500 l 670 mm Note The unheated length of any threaded immersion heater installed on site must be at least 100 mm.
160, 200, 300 l capacity Installing the temperature controller sensor Fig. 4 Note for cylinders with 300 l capacity Note on step 6 Following step 1, remove the parts for flange cover If a high limit safety cut-out is installed: installation.
Affixing the type plate Fig. 5 Type plate 300 l capacity Installing the sensor well and the cylinder temperature sensor Note 1. Extract the sensor retainer. The sensor retainer is in the sensor well. 2. Fit the sensor to the outside of the sensor retainer contact spring (not in the groove).
500 l capacity (cont.) Fitting the thermometer sensor (if supplied) and cylinder temperature sensor Fig. 9 1. Guide the thermometer sensor through the cover 6. Slot the clamps onto the threaded studs and align. strip and insert the thermometer. 7. Tighten the nuts. Note The cover strip is held in its vertical position by the 8.
500 l capacity (cont.) Fitting the thermal insulation jacket Note ■ Ensure that no fleece remnants enter the DHW cylin- der through the cylinder connections. ■ 2 people are required for the following work. Fig. 10 1. At the back of the cylinder: Attach 6 clip fasteners 3.
500 l capacity (cont.) Fitting the cover strips Fig. 11 DHW cylinder type plate 1. Fit the thermal insulation jacket evenly around the 3. Fit the rear cover strip. cylinder body by patting it. 4. Affix the type plate. 2. Mount the front cover strip and flange cover.
(cont.) Fitting the cover Note The soft side of the thermal insulation must rest against the cylinder body. Fig. 12 Cap with Viessmann logo Connections on the heating water side ■ Connect all pipework with detachable fittings. Individual cylinder ■...
Connections on the heating water side (cont.) Fig. 13 Heating water return Circulation pump Heating water flow KW Cold water Spring-loaded check valve WW DHW Cylinder temperature sensor or temperature con- troller and high limit safety cut-out (if required) 1. Install the heat supply control unit. Note For connections, see page 6.
Connections on the DHW side (cont.) Fig. 14 Expansion vessel Flow regulating valve Drain outlet Pressure gauge connection DHW circulation pipe Non-return valve Drain outlet Spring-loaded check valve Cold water DHW circulation pump Drinking water filter Visible discharge pipe outlet point (tundish) Pressure reducer Safety valve Non-return valve/pipe separator...
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Connections on the DHW side (cont.) Notes on the diagrams below ■ Headers for DHW must be approved for drinking water. Install the temperature controller in the final cylinder, ■ as viewed from the heating water flow. ■ The "DHW" connection can, contrary to the dia- grams, also be connected on the same side as the heating water flow, and the "cold water"...
Connections on the DHW side (cont.) Temperature controller DHW circulation Connecting the equipotential bonding Connect the equipotential bonding in accordance with CH: Connect the equipotential bonding in accordance the requirements stipulated by your local power supply with the technical requirements stipulated by your local utility and VDE [or local] regulations.