Vr2 series oil-fired boiler, hot water heating boiler 77 to 245 mbh / 23 to 72 kw, with boiler stand and vitocell-v 100 domestic hot water storage tank (17 pages)
Vd2/vd2a series oil-/gas-fired sectional cast iron boiler for operation with modulating water temperatures rated input: 490 to 4387 mbh & 144 to 1285 kw (12 pages)
Safety instructions Please follow these safety instructions closely to prevent accidents and mate- rial losses. Safety instructions explained Working on the system Please note ■ Isolate the system from the power sup- This symbol warns against the ply (e.g. by removing the separate fuse risk of material losses and envi- or by means of a mains isolator) and ronmental pollution.
Index Preparing for installation Intended use......................Siting........................■ Clearance dimensions..................Overview of connections..................Installation sequence Siting and levelling the boiler................■ Positioning without a plinth................■ Positioning on a plinth..................Fitting the thermal insulation................Fitting the heat exchanger to the boiler..............15 ■...
Intended use The appliance is only intended to be Any usage beyond this must be installed and operated in sealed unven- approved by the manufacturer for the ted heating systems that comply with individual case. EN 12828, with due attention paid to the associated installation, service and Incorrect usage or operation of the appli- operating instructions.
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Siting (cont.) A Plinth (accessories) C Neutralising system (accessories) B Siphon...
Overview of connections A Oil line connection G Silencer (accessories) B Siphon H Flue outlet C Condensate drain K Wiring area D Cylinder and heating return G 2 L Drain/filling/diaphragm expansion vessel connection E Cylinder and heating flow G 2 F Boiler flue connection...
Siting and levelling the boiler (cont.) Positioning without a plinth Wind adjustable feet A approx. 85 mm out of the boiler. Note The adjustable feet height of 85 mm is essential for mounting the oil burner later. Positioning on a plinth Replace adjustable feet A with hexa- gon screws supplied.
Fitting the thermal insulation Note All components required for mounting can be found in the thermal insulation box. A Notch should face the front Secure the thermal insulation jacket with 4 spring hooks.
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Fitting the thermal insulation (cont.) Note Burner cable fA and extension for two- stage/modulating burner with cables lÖ are supplied inside the thermal insulation pack. SW15 A Folded edge should face the front...
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Fitting the thermal insulation (cont.) 3.9x9.5 A Black side should face outwards...
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Fitting the thermal insulation (cont.) 3.9x9.5 3.9x9.5 3.9x9.5 Opening the control unit and connec- Note tions to the control unit: ■ Boiler water temperature sensor § is supplied in the control unit pack. Boiler control unit installation ■ Insert sensors and boiler water tem- instructions perature sensor §...
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Fitting the thermal insulation (cont.) 45° § lÖ...
Fitting the heat exchanger to the boiler Mounting the BF/BR distributor Note On delivery, the return injector nozzle must be fitted in the boiler return. Preparing for mounting the heat exchanger...
Fitting the heat exchanger to the boiler (cont.) ■ Align the heat exchanger with the support. ■ Secure the support to the floor, if necessary. ■ Push the hose upwards. Fitting the pipework and siphon ■ Manually bend flexible pipe into the Note required shape.
Connections on the heating water side A Cylinder and central heating return B Cylinder and central heating flow C Quick-action air vent valve D Pressure gauge E Safety valve During the installation, align pressure gauge D so that it is clearly visible. Flow and return Note The flow and return pipes with the heat...
Connections on the heating water side (cont.) Connect the heating circuits and DHW cylinder to the common flow and return on the BF/BR distributor. Make connec- tion A on site. Making the safety connections Permiss. operating pressure: 3 bar Low water indicator (0.3 MPa) Tests have verified that the low water Test pressure:...
Condensate connection Connect the condensate pipe to the pub- lic sewage system by the shortest route, with a constant fall and a pipe vent. Install a neutralising system if required. Note DWA-A 251 permits boiler use without a neutralising system when operating with low sulphur fuel oil DIN 51605-EL-1 (sul- phur content ≤...
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Making the electrical connections (cont.) C Alternative cable routing to the upper aperture through the heat exchanger thermal insulation ■ Route all LV leads A and 230 V cables B to the control unit through the rear lower aperture in the back panel.
Mounting the top and the front panels Mount the burner prior to fitting the front panel: Burner installation instructions Use cable ties (snap hooks) to secure the burner cable at hole A on the inside of the side panel; which side panel depends on whether the burner is mounted on the right or left.
Mounting the top and the front panels (cont.) 3.9x9.5 M4x28 A Fixing holes for burner cable B Type plate Commissioning and adjustment Boiler service instructions Burner service instructions Boiler control unit service instruc- tions...
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Viessmann Middle East FZE Viessmann Werke GmbH&Co KG E-Wing, Office 603 D-35107 Allendorf HQ Building Telephone: +49 6452 70-0 Dubai Silicon Oasis Fax: +49 6452 70-2780 PO Box 341330 www.viessmann.com Dubai, UAE Tel: +971 4 3724240 Fax: +971 4 3724241...
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