Viessmann VITOVENT 300 Technical Manual
Domestic ventilation system
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Summary of Contents for Viessmann VITOVENT 300
- Page 1 VIESMANN VITOVENT 300 Domestic ventilation system Technical guide Domestic ventilation system with heat recovery, for ventilating domestic homes subject to demand using purified and pre- heated outside air. 5724 798 GB 5/2010...
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Page 2: Table Of Contents
■ Flexible pipe with thermal insulation ............... 27 ■ Flexible pipe with thermal insulation ............... 27 ■ Connection piece ....................27 ■ Folded spiral-seam tube ..................27 ■ Pressure drop, pipes ....................28 ■ Flow velocity ......................29 VIESMANN VITOVENT 300... - Page 3 48 ........................54 7. 9 Calculating the external pressure drop for a plastic duct system ....... 55 7.10 Overview of components .................... 56 ■ System illustration, metal duct system ..............56 ■ System illustration, plastic duct system ..............59 VIESMANN VITOVENT 300...
- Page 4 8. 2 Specification, remote control ..................61 Appendix 9. 1 Form for designing air flow rate patterns for the Vitovent 300 ........62 9. 2 Form for designing the Vitovent 300 sections ............. 63 9. 3 Form for determining the total pressure drop ............. 64 9.
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Page 5: Principles 1. 1 Heat Demand
These systems are designed to support occupants in their endeavour to ventilate in an energy efficient manner. Advanced ventilation systems avoid the need for windows to be opened and prevent uncontrolled heat losses, especially during the heating season. VIESMANN VITOVENT 300... -
Page 6: Product Information 2. 1 Product Description
Here, to protect the heat exchanger, the extract air is purified. Afterwards, the extract air pre- Only for Vitovent 300 for max. air flow rate 300 m /h or 400 m heats the cooler outside air in the countercurrent heat exchanger and The integral bypass damper automatically switches between the oper- is discharged from the building via the expelled air duct. -
Page 7: Benefits
Product information (cont.) Benefits A Extract air B Outside air C Filter mat – outside air (bypass mode, only for Vitovent 300 for max. air flow rate 300 m /h or 400 m D Expelled air E Ventilation air F Radial DC fan – ventilation air G Countercurrent heat exchanger H Filter mat –... -
Page 8: Specification
91 Material PETG plastic Rated voltage V / Hz 230/50 Max. power consumption Power consumption with factory settings Power consumption Vitovent 300 for max. air flow rate 180 m Operating mode Reduced ventila- Standard ventila- Maximum ventila- tion tion tion... - Page 9 Product information (cont.) Sound power level Sound power level Vitovent 300 for max. air flow rate 400 m Air flow rate and pressure drop in the air Sound power level Note duct system [dB(A)] Measurement taken approx. 1.5 m from the ventilation appliance, to <...
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Page 10: Dimensions
Product information (cont.) Sound power level Vitovent 300 for max. air flow rate 400 m Operating Flow rate Pressure Sound power level [dB] mode drop air duct at octave centre frequency [Hz] Total system [Pa] 1000 2000 4000 8000 Ventilation air Reduced venti- 50.0... -
Page 11: Fan Curves
Product information (cont.) Dimensions Vitovent 300 for max. air flow rate 300 m /h or 400 m 300 m 400 m Ventilation air DN 160 DN 180 Extract air DN 160 DN 180 Outside air DN 160 DN 180 Expelled air... -
Page 12: Installation Accessories For Out- 3. 1 Outside Air
Product information (cont.) Vitovent 300 for max. air flow rate 300 m Air flow rate in m³/h x Power consumption per fan in W at min. average or max. pressure drop Vitovent 300 for max. air flow rate 400 m Air flow rate in m³/h... -
Page 13: Pre/Reheater Bank
■ The duct connection to the external wall connection must be ther- mally insulated and vapour diffusion-proof. ■ The Vitovent 300 for max. air flow rate 180 m /h requires a reducer DN 160/125. Pressure drop, external wall connection Air flow rate in m³/h... -
Page 14: Outside Air Filter Box
Note Required reducers for the external wall connection: ■ 2 pce DN 160/125 for Vitovent 300 for max. air flow rate 180 m ■ 2 pce DN 180/160 for Vitovent 300 for max. air flow rate 400 m Ø 1 Ø... -
Page 15: Expelled Air
■ Lead plate 600 x 600 mm (not shown). Note Required reducers for the external wall connection: ■ 1 pce DN 160/125 for Vitovent 300 for max. air flow rate 180 m ■ 1 pce DN 180/160 for Vitovent 300 for max. air flow rate 400 m Ø160-200 Made from stainless steel. -
Page 16: Ventilation Valves For Ceiling Installation
Slotted outlet with connecting chamber, system 100 Part no. 9542 566 Wall installation: Ventilation air distribution at the air inlet ■ Flow rate up to 35 m ■ For wall and ceiling installation ■ With stainless steel casing VIESMANN VITOVENT 300... -
Page 17: Floor Outlet, System 100
60 m For installation in ceilings and walls in bathrooms, toilets, sanitary rooms and workrooms Ø 9 Note Ceiling and wall installation as for kitchen extract air valve (see page 18) Ø 1 Ø 1 VIESMANN VITOVENT 300... -
Page 18: Extract Air Filter
Air flow rate in m³/h Kitchen extract air valve Nominal diameter Flow rate Part no. DN 100 60 m 9542 601 DN 125 75 m 7440 231 DN 125 DN 100 With grease filter made from aluminium mesh VIESMANN VITOVENT 300... -
Page 19: Air Distribution Boxes
■ 4 connectors, system 100, at the front ■ 3 covers, system 100 Part no. 9562 050 For the connection of 3 flat ducts, system 100 ■ 1 connector, system 150, at the back ■ 3 connectors, system 100, at the front VIESMANN VITOVENT 300... -
Page 20: Pressure Drop, Air Distribution Box
If the flexible flat duct, system 150, is routed within the insulation layer below the screed, e.g. as the supply pipe for the air distribution box, protect the duct with cover panels against deformation by concentrated loads. VIESMANN VITOVENT 300... -
Page 21: Rigid Flat Duct, System 150
9542 575 207 x 51 mm 9542 576 For joining flat duct elements (rigid or flexible). Flat duct pressure drop Air flow rate in m³/h A System 100, flexible B System 150, flexible C System 150, rigid VIESMANN VITOVENT 300... -
Page 22: Flow Velocity, Flat Duct
Pressure drop: 5 Pa 150/100 128 mm 9542 579 150/150 207 mm 9542 580 Made from stainless steel Bend 90° broad side, 2 sections System Dimension a Part no. 128 mm 9542 584 207 mm 9542 585 VIESMANN VITOVENT 300... -
Page 23: Bend 90° Broad Side, 3 Sections
Dimension a Part no. 128 mm 9562 057 207 mm 9562 056 Made from stainless steel. Note Pressure drop: 5 Pa Reducer Part no. 9542 581 Note System 150/100. Pressure drop: 5 Pa Made from stainless steel. VIESMANN VITOVENT 300... -
Page 24: Adaptors - Round To Flat
4.6 Adaptors — round to flat Adaptor — round to flat System Dimension a Part no. Note ■ Two adaptors are required per Vitovent 300 DN 125 to sys- 125 mm 7249 111 ■ Pressure drop: 5 Pa tem 150... -
Page 25: Silencers
2000 4000 8000 Hz 8000 Hz Octave centre frequency A DN 125 B DN 160 C DN 180 Silencer, flat, flexible System Dimensions Part no. 128 mm 202 mm 9542 573 207 mm 304 mm 9542 574 VIESMANN VITOVENT 300... -
Page 26: Silencer, Flat, Crush-Resistant Version, System 100
Corresponds to the pressure drop of flat duct (see page 21). For ventilation air areas with higher silencing requirements Attenuation characteristics of silencers, flat 1000 2000 4000 Hz Octave centre frequency A System 100, flexible B System 100, crush-resistant C System 150, flexible VIESMANN VITOVENT 300... -
Page 27: Pipes
DN 180 180 mm 7373 025 To join two flexible pipes. Folded spiral-seam tube Connection Dimension a Part no. DN 125 125 mm 7249 104 DN 160 160 mm 9521 428 DN 180 180 mm 7373 026 VIESMANN VITOVENT 300... -
Page 28: Pressure Drop, Pipes
Air flow rate in m³/h A Flexible pipe DN 125 D Folded spiral-seam tube DN 160 B Folded spiral-seam tube DN 125 E Flexible pipe DN 180 C Flexible pipe DN 160 F Folded spiral-seam tube DN 180 VIESMANN VITOVENT 300... -
Page 29: Flow Velocity
7190 179 DN 180 180 mm 240 mm 7373 031 Tee with reducer Connec- Dimensions Part no. tion DN 125 125 mm 205 mm 100 mm 7299 292 DN 160 160 mm 230 mm 125 mm 7299 293 VIESMANN VITOVENT 300... -
Page 30: Bend 90
DN 125 125 mm 7249 107 DN 160 160 mm 9521 725 DN 180 180 mm 7373 029 45° Reducer 160/125 Part no. 7249 108 Reducer 125/100 Part no. 7249 109 Reducer 180/160 Part no. 7373 030 VIESMANN VITOVENT 300... -
Page 31: Installation Accessories For Venti- 5. 1 Ventilation Air Apertures
On plastic duct systems, the flow rate is adjusted for part sections by For calculating the pressure drop, a calculation program can be down- means of the restrictors (see page 33). loaded at www.viessmann.de. 5.1 Ventilation air apertures Ventilation air valve DN 125 with diverter for wall and ceiling installation... -
Page 32: Extract Air Apertures
Number of restrictors lation DN 125 7440 222 DN 160 7440 223 DN 180 7440 224 In the delivered condition, the connectors are fitted pointing forward. If required, the connectors can be fitted pointing upwards. DN 125 VIESMANN VITOVENT 300... -
Page 33: Restrictor
DN 180 Restrictor Individual rings are knocked out of the restrictors to adjust the flow rate. How many rings need to be knocked out depends on the pressure drop calculation. A calculation program can be downloaded at www.viessmann.de. VIESMANN VITOVENT 300... -
Page 34: Flat Duct, System 100
(up to 60 m /h). ■ 50 m roll Connection piece Part no: 7440 218 5.5 Flat duct: Bends Bend 90°, broad side Part no: 7440 215 Bend 90°, narrow side Part no. 7440 216 VIESMANN VITOVENT 300... -
Page 35: Lip Seal
6.1 Positioning Application The central domestic ventilation system Vitovent 300 may only be used The Vitovent 300 is not designed for rooms with commercial use (e.g. in a single self-contained residential unit (e.g. in a detached family restaurant, shop etc.). -
Page 36: Installation Options
■ Cellar ■ Thermally insulated long pane attic room. Installation options Vitovent 300 within the sealed building envelope ■ Flat duct in the upper floor screed ■ Ventilation and extract air for the ground floor via ceiling valves ■ Ventilation air at the upper floor via floor-level outlets ■... - Page 37 ■ All ducts in unheated areas must be thermally insulated with diffu- sion-proof material. ■ Ventilation and extract air ducts from the Vitovent 300 to the air dis- tribution box: max. 5 m on account of the pressure drop. Possibly route the ventilation air and extract air ducts through a con- duit DN 160 or DN 180.
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Page 38: Open Flue Combustion Equipment And Ventilation Equipment
Open flue combustion equipment and ventilation equipment The simultaneous operation of open flue combustion equipment (e.g. Information regarding the operation of the Vitovent 300 in con- an open fireplace) and the Vitovent in the same combustion air inter- junction with open flue combustion equipment connection will result in dangerous negative pressure inside the ■... -
Page 39: Operating Mode
(kitchen, bathroom, WC): Intended occu- Residential Nominal ventilation pancy unit size Subject to res- Subject to idential unit occupancy size [occupants] up to 2 < 50 up to 4 < 80 up to 6 > 80 VIESMANN VITOVENT 300... -
Page 40: Operation With Heat Recovery
The outside air is preheated by the heat recovered from the extract air. In standard mode, the temperature-related heat recovery level η of the Vitovent 300 is in excess of 91 % (according to tests carried out by TZWL Dortmund [Germany]). -
Page 41: Operation Without Heat Recovery (E.g. In Summer)
A Ventilation air B Expelled air Ice guard An ice guard circuit has been integrated into the Vitovent 300 to pre- Note vent the condensate in the heat exchanger (extract air side) from ■ For a passive house, we generally recommend using a geothermal freezing when outside temperatures are low. - Page 42 Outside air via weather grille and electric preheater bank (acces- sory) Geothermal heat exchanger for the Vitovent 300 ■ Provide a supporting fan (on site) in case of excessive pressure drop. ■ Install the geothermal heat exchanger with a slope towards the...
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Page 43: Duct System
E Overflow area (hallway, entrance) Outside air supply and expelled air aperture The outside air supply for the Vitovent 300 is provided by air intake The expelled air is routed via the roof or through the external wall. through the external wall. -
Page 44: Ventilation Air And Extract Air Duct
■ Max. distance to the ceiling: 300 mm. Ceiling installation A Screed B Impact sound insulation C Flat duct D Diverter — round to flat (not required for slotted outlet) E Ventilation air valve, extract air valve, kitchen extract air valve or slotted outlet VIESMANN VITOVENT 300... -
Page 45: Flat Duct System
(impact protection). ■ In connection with the floor construction, also observe the manufac- turer's details regarding the underfloor heating system. When using the Viessmann underfloor heating system, observe the details in the technical guide "Vitoset pipe system and underfloor heating system". -
Page 46: Sound Insulation And Silencer
■ Thermal losses from the duct system must be kept to a minimum to ■ Isolate [thermal bridge] ceiling and wall outlets with insulation strips. ensure optimum heat recovery with the Vitovent 300. ■ Avoid gaps. Thermally insulate all ducts in unheated areas with diffusion-proof material (min. -
Page 47: Separating The Rooms Into Those To Be Ventilated And Those From Which Air Should Be Extracted
The total air volume flow must be split over the individual rooms to be ventilated and those from where air is to be extracted. Rooms for the ventilation air area Rooms for the extract air area Living rooms Kitchen Bedroom Bathroom Children's room Dining room Utility room VIESMANN VITOVENT 300... -
Page 48: Example: Detached House, Total Available Area 138.9 M
3.6 m 3.8 m² 48.5 m² 23.3 m² 18.5 m² Ground floor Attic Ventilation air section Extract air section C Living rooms A Kitchen D Bedroom B WC F Child's room 1 E Bathroom G Child's room 2 VIESMANN VITOVENT 300... -
Page 49: Calculating The Air Flow Rates
= Σ V + Σ V ] = 267 + 70 = ZUL,i ABL,i Air change n [1/h] (standard ventilation) 168.5 Air flow rate for basic ventilation ´ = n · V /h] = 0.5 x 337 = VIESMANN VITOVENT 300... -
Page 50: Selecting The Vitovent
0.3 = 337 x 0.3 = 100 m /h (rounded) 169 m ■ Maximum ventilation (0.7 air changes/h): ■ Selected appliance version: Vitovent 300 for max. air flow rate x 0.7 = 337 x 0.7 = 225 m /h (rounded) 300 m Explanations regarding the device selection: ■... -
Page 51: Determining The Installation Location Of The Vitovent And The Duct System
■ Draw in the outside air and the expelled air ducts. Installation location of the Vitovent and the duct system for example on page 48 In the example shown, the Vitovent 300 is installed inside a cupboard in the hallway. Air distribution is provided through flat ducts in the intermediate ceiling/floor void (for information regarding the floor con- struction, see from page 45). -
Page 52: Identifying Part Sections, Ventilation And Extract Air Apertures
■ Flow velocity (option, from diagram page 22, v [m/s]) are numbered from the air vents to the Vitovent. ■ Internal diameter or flat duct system (DN / system [mm]) Conventional identification for a part section: ■ Number (no.) ■ Air flow rate (´ [m /h]) VIESMANN VITOVENT 300... -
Page 53: Identifying Part Sections, Ventilation And Extract Air Apertures For Example
46.0 m³ VE 35 m³ /h VE 30 m³ /h Ground floor Attic floor EA Extract air A Bedroom OA Outside air B Bathroom EX Expelled air C Child's room 1 VA Ventilation air D Child's room 2 VIESMANN VITOVENT 300... -
Page 54: Calculating The External Pressure Drop
Total pressure drop ventilation air + outside air [Pa] 87.5 Determine the total pressure drop for extract air + expelled air in the The total pressure drop for ventilation air + outside air lies within the same way. permissible range (< 100 Pa, see Specification). VIESMANN VITOVENT 300... -
Page 55: Calculating The External Pressure Drop For A Plastic Duct System
7.9 Calculating the external pressure drop for a plastic duct system On plastic duct systems, the flow rate is adjusted for part sections by For calculating the pressure drop, a calculation program can be down- means of the restrictors (see page 33). loaded at www.viessmann.de. VIESMANN VITOVENT 300... -
Page 56: Overview Of Components
Sizing (cont.) 7.10 Overview of components System illustration, metal duct system System illustration, metal duct system VIESMANN VITOVENT 300... - Page 57 Sizing (cont.) Metal duct system Pos. Components System/DN Part no. Vitovent 300 7373 372 180 m /h: DN 125 7373 373 300 m /h: DN 160 7373 374 400 m /h: DN 180 External wall connection DN 125 and DN 160...
- Page 58 9542 601 DN 125 7440 231 Further components (not shown) Outside air filter box DN 160 7180 278 Summer cassette Vitovent 300 for max. air flow rate 7249 340 180 m Flat duct: System 150/100 9542 581 Reducer Flat duct:...
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Page 59: System Illustration, Plastic Duct System
Sizing (cont.) System illustration, plastic duct system qR qE qE qW qT qZ qT wQ qT wQ System illustration, plastic, metal VIESMANN VITOVENT 300... -
Page 60: Control Unit / Remote Control 8. 1 Construction And Function
Standard ventilation Maximum ventilation g – 23:00 to 07:00 For heavier air loads (e.g. through smoking, cooking or showering) with Reduced ventilation an air change rate of 0.7/h. Program 2 (P2) Ventilation with an individually set time program. VIESMANN VITOVENT 300... -
Page 61: Bypass
100 % of the volume flow past the heat nelled directly into the rooms. exchanger. The bypass can be programmed using the Vitovent 300 remote control. Factory setting 1 (automatic). The bypass damper is opened and closed subject to the outside and... -
Page 62: Appendix 9. 1 Form For Designing Air Flow Rate Patterns For The Vitovent 300
Appendix 9.1 Form for designing air flow rate patterns for the Vitovent 300 Project: Air flow rates can be selected at the ventilation equipment subject to the residential unit size. Ventilated accommodation volume up to 260 260 to 325 325 to 390... -
Page 63: Form For Designing The Vitovent 300 Sections
Appendix (cont.) 9.2 Form for designing the Vitovent 300 sections Project: Outside air/ventilation air area Section Flow rate (´) Duct system Velocity (v) Length Number of Number of Number of Pressure drop bends silencers tees [m/s] 45º 90º Extract air/expelled air area Section Flow rate (´) -
Page 64: Form For Determining The Total Pressure Drop
(determine from the flow rate according to the diagram on page 15) Pressure drop from the outside air inlet to the Vitovent 300: (determine from the length, cross-section and flow rate according to the diagram on page 21; when using... -
Page 65: Checklist For A Quotation Request For The Vitovent 300
Appendix (cont.) 9.4 Checklist for a quotation request for the Vitovent 300 Customer: Account no: Company: Date of despatch: Street: Type of despatch: Postal code/location: Order no.: System: Street: Postal code/location: Checked: Date/N/A: Consign. no.: Comments: Information: Standard set for a metal duct system Domestic ventilation system with Vitovent 300 Part no. - Page 66 9542 601 DN 125 7440 231 Further components (not shown) Outside air filter box DN 160 7180 278 Summer cassette Vitovent 300 for max. air flow rate 7249 340 180 m Flat duct: System 150/100 9542 581 Reducer Flat duct:...
- Page 67 Appendix (cont.) Pos. Components System/DN Part no. Quantity DN 125 7279 110 DN 160 7190 179 DN 180 7373 031 Tee with reducer DN 125/100/100 7299 292 DN 160/125/125 7299 293 VIESMANN VITOVENT 300...
- Page 68 Appendix (cont.) System illustration, metal duct system VIESMANN VITOVENT 300...
- Page 69 (for 4 occupants with living/dining room, bedroom, 2 bedrooms for children, kitchen, 2 bathrooms, guest WC and utility room). Components: Vitovent 300 for max. air flow rate 300 m Extract air valves Ventilation air valves...
- Page 70 Appendix (cont.) qR qE qE qW qT qZ qT wQ qT wQ System illustration, plastic, metal VIESMANN VITOVENT 300...
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Page 71: Symbols
Aperture through which ventilation air is supplied into a room. side into the flat. The ventilation heat demand is the amount of heat that is required to heat up the induced outside air to room tempera- ture. VIESMANN VITOVENT 300... -
Page 72: Keyword Index
Underfloor heating................45 Heat loss....................5 Ventilation air................62, 63 Heat recovery.................7, 40, 61 Ventilation heat demand..............5, 7 Subject to technical modifications. Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com...
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