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25

In order to keep deviations in the air flow rate as low
as possible, install an iris diaphragm with defined mini-
mum clearances.

Minimum clearance

■

Before/after bend: 1 x D

■

Before tee: 3 x D

■

After tee: 1 x D

■

Before air outlet: 3 x D

Iris diaphragms: DN 125 and 160
Install the iris diaphragm in the ductwork between 2
floors.

Ø D

A

B

Fig. 21

C

A

B

Ø d

Fig. 22

A

Setting lever

B

Test connector

Dimensions of iris diaphragm

Iris diaphragm

DN

125

160

7

 d

mm

124

159

C

mm

63

60

7

 D

mm

210

230

A

Fig. 23

Installation of iris diaphragm

A

Ceiling / floor

Note

The iris diaphragm must be accessible for adjustment
and cleaning.

Installing supply air/extract air header

Installing the iris diaphragm

5831646

Installation

 

Summary of Contents for H32E

Page 1: ...Installation and service instructions for contractors VIESMANN Air distribution systems For central mechanical ventilation units Air distribution systems 5831646 GB 9 2018 Please keep safe ...

Page 2: ...s defined by DIN EN DGW VDE and locally applicable standards a ÖNORM EN and ÖVE c SEV SUVA SVTI SWKI and SVGW Working on the system Isolate the system from the power supply e g at a separate MCB fuse or a mains isolator and check that it is no longer live Note In addition to the control circuit there may be several power circuits Danger Contact with live components can result in severe injuries So...

Page 3: ...her with the system can compromise its function Installing non authorised components and making non approved modifications or con versions can compromise safety and may inva lidate our warranty For replacement use only spare parts supplied or approved by Viessmann Safety instructions Safety instructions cont 5831646 ...

Page 4: ...3 Roof outlet with bird guard 23 4 Installing supply air extract air header System diagram for supply air extract air header 24 Installing the iris diaphragm 25 5 Installing modular supply air extract air ductwork Modular flat round supply air extract air system diagram 26 Connecting flat ducts 27 Connecting round ducts 28 Air distribution box with silencing function 30 For Vitovent 200 C 30 For V...

Page 5: ...oning service reports Commissioning report 72 Example of commissioning report 73 9 Final decommissioning of the ventilation system Final decommissioning and disposal 74 10 Keyword index 75 Index Index cont 5831646 ...

Page 6: ...e sur face Dispose of component correctly Dispose of component at a suitable collec tion point Do not dispose of component in domestic waste The steps in connection with commissioning inspec tion and maintenance are found in the Commission ing inspection and maintenance section and identified as follows Symbol Meaning Steps required during commissioning Not required during commissioning Steps requ...

Page 7: ...door air is fed into the ventilation unit and the exhaust air is routed out of the building The ductwork comprises thermally insulated pipes and bends made of EPP and metal silencers and outside air exhaust air apertures On the supply and extract air side the headers con nect the ventilation unit with the air distributors Modular flat round supply air extract air ductwork The modular flat round du...

Page 8: ...allation In order to avoid complicated duct runs install the ventilation ductwork prior to installing the central heating water and waste water services Ducts must not sag to prevent condensate accumu lating Contamination must not enter the ductwork Lubricating paste is required to assemble the compo nents Only use lubricating paste intended for EPDM Supply air extract air ductwork Vitovent 200 C ...

Page 9: ...om which air is extracted At the same time ensure as broad a flow pattern as possible through the entire room Max distance to the ceiling in the case of wall mounting 300 mm Air routing between rooms Create an interconnected room air supply between the rooms to be ventilated and those from which air is to be extracted For this a gap under doors into the apartment is suf ficient The correlation bet...

Page 10: ...riate Measures against structure borne noise The ventilation units have sound absorbing adjustable feet or rubber washers to counteract structure borne noise transmission Therefore if appliances are moun ted on concrete or screed floors and solid walls no additional measures need be taken When a unit is installed on wooden ceilings we recom mend additionally insulating it against vibration by mean...

Page 11: ...ever operate the Vitovent simultaneously with open flue combustion equipment e g open fire place Only operate combustion equipment in room sealed mode with a separate combustion air supply We rec ommend combustion equipment that has general building approval as room sealed combustion equip ment from the Deutsches Institut für Bautechnik DIBt Germany Keep doors to boiler rooms that are not part of ...

Page 12: ...using an extractor hood in conjunction with open flue combus tion equipment See chapter Open flue combustion equipment and Vitovent Protecting the mechanical ventilation system Please note Dust entering the ventilation unit and the duct work can result in faulty operation of the mechanical ventilation system Prevent the ingress of dust whilst building work is in progress by the following measures ...

Page 13: ...or DN 125 DN 160 DN 125 DN 160 DN 160 DN 180 2 Wall duct with weather grille DN 160 DN 160 DN 160 DN 160 DN 160 DN 180 Reducer not shown DN 160 DN 125 DN 160 DN 125 or Wall duct with bird guard DN 125 DN 160 DN 125 DN 160 DN 160 DN 180 or Outdoor and exhaust air add on DN 160 DN 160 DN 160 DN 160 DN 160 DN 180 Reducer supplied with outdoor and exhaust air add on DN 160 DN 160 DN 125 DN 160 DN 125 ...

Page 14: ...xternal electric preheating coil DN 125 DN 160 DN 125 DN 160 DN 160 DN 180 8 Roof outlet stainless steel with removable hood DN 160 DN 160 DN 160 DN 160 DN 160 DN 160 Reducer not shown DN 160 DN 125 DN 160 DN 125 DN 180 DN 160 or Roof outlet sheet steel pain ted Note Can also be used as outdoor air aperture DN 125 DN 160 DN 125 DN 160 DN 160 DN 180 9 Silencer round flexible DN 125 DN 160 DN 125 DN...

Page 15: ... on the left R Unit versions with outdoor air connector on the right 2 Outdoor and exhaust air duct 3 Pipe with female connection EPP or flexible pipe folded spiral seam tube 4 Mounting bracket 5 Silencer round flexible 6 Connector EPP A Outdoor air B Exhaust air Installing outdoor air exhaust air ductwork System diagram outdoor air exhaust air cont 5831646 Installation ...

Page 16: ...e folded spiral seam tube 4 Mounting bracket 5 Silencer round flexible 6 Connector EPP 7 Electric preheating coil Important installation information Note Installation of the wall ducts shown hereafter always relates to the finished external wall including exterior rendering Installing outdoor air exhaust air ductwork System diagram outdoor air exhaust air cont 5831646 Installation ...

Page 17: ...level 5 Seal mounting ring sealing level B with suitable adhesive tape towards the sealing level Note Thermally insulate the outdoor air duct from the exter nal wall connection to the ventilation unit in vapour dif fusion proof material Ensure an airtight seal at all con nections use cold shrink tape Installing outdoor air exhaust air ductwork Wall duct with weather grille 5831646 Installation ...

Page 18: ...ith bird guard A 2 a 1 D C B Fig 10 A EPP pipe B Exterior rendering including thermal insulation C Wall D Interior plaster finish EPP pipe Dim a in mm DN 125 155 DN 160 190 DN 180 210 5 3 A 4 Fig 11 A EPP pipe Note Before shortening the pipe sleeve take the complete construction of the wall including plaster thickness into account Installing outdoor air exhaust air ductwork Wall duct with weather ...

Page 19: ...ulation C Wall D Interior plaster finish EPP pipe Dimensions in mm a b c d DN 125 Vitovent 200 C 155 300 205 470 DN 125 Vitovent 300 C 155 330 205 470 DN 160 190 400 205 590 DN 180 210 400 205 590 Installing outdoor air exhaust air ductwork Outdoor and exhaust air duct 5831646 Installation ...

Page 20: ...ve take the complete construction of the wall including plaster thickness into account Repositioning the outdoor air and exhaust air side 2 8 3 1 180 4 Fig 14 Installing outdoor air exhaust air ductwork Outdoor and exhaust air duct cont 5831646 Installation ...

Page 21: ...nnector outside Ø 18 mm for connecting an on site waste water pipe D Wall mounting bracket E Pipe F Bend with bird or insect guard Install at least 1 2 m above ground level G Insect guard accessories Installing the insect guard accessories 2 1 Fig 16 Installing outdoor air exhaust air ductwork Outdoor and exhaust air add on 5831646 Installation ...

Page 22: ...4 7 8 9 10 Fig 17 6 Note Commercial dishwashing detergent can be used as a lubricating paste diluted with water if necessary Installing outdoor air exhaust air ductwork Compact outdoor air or exhaust air duct 5831646 Installation ...

Page 23: ...e from outside to inside 1 Roof tile 2 Batten 3 Membrane 4 Rafter with thermal insulation 5 Membrane 6 Batten 7 Plasterboard Roof outlet with bird guard C B A E D Fig 19 A EPP pipe B Female connection C Universal roof tile adjustable for roof pitch from 20 to 50 accessories D Roof outlet E Air discharge vents Roof structure Roof structure from outside to inside 1 Roof tile 2 Batten 3 Membrane 4 Ra...

Page 24: ...ation unit connector DN 125 DN 160 DN 125 DN 160 DN 160 DN 180 2 Pipe EPP Or flexible pipe Or folded spiral seam tube DN 125 DN 160 DN 125 DN 160 DN 160 DN 180 3 Slide coupling DN 125 DN 160 DN 125 DN 160 DN 160 DN 180 4 Female connection EPP DN 125 DN 160 DN 125 DN 160 DN 160 DN 180 5 Mounting bracket DN 125 DN 160 DN 125 DN 160 DN 160 DN 180 6 90 bend with female connec tion EPP can be split int...

Page 25: ...25 and 160 Install the iris diaphragm in the ductwork between 2 floors Ø D A B Fig 21 C A B Ø d Fig 22 A Setting lever B Test connector Dimensions of iris diaphragm Iris diaphragm DN 125 160 7 d mm 124 159 C mm 63 60 7 D mm 210 230 A Fig 23 Installation of iris diaphragm A Ceiling floor Note The iris diaphragm must be accessible for adjustment and cleaning Installing supply air extract air header ...

Page 26: ...160 180 3 2 way air distributor 4 Distributor connection cover round 5 Distributor connection cover flat 6 Flat duct connection piece 7 Flat duct 8 Locking pin 9 90 bend broad side qP 8 way air distributor intermediate level Pos Components qQ Mounting ring for supply air extract air vent qW Supply air extract air vent qE Straight through diverter qR 90 bend narrow side qT Inspection port qZ Round ...

Page 27: ...ay air distributor intermediate level eE Straight vent connection eR Modular air distribution box Components not shown 8 way air distributor final level Extract air vent Flat silencer Spin discharge restrictor white silver Wide angle discharge restrictor white silver Wall outlet cover grille white silver Connecting flat ducts Trimming a flat duct 90 1 Fig 25 Connecting a flat duct 3 2x 2 4 Fig 26 ...

Page 28: ...n the system component connections may cause a leak Avoid sharp bends On flat ducts fit bends with elbows Flat duct bending radius 3 0 0 1 5 0 A Fig 27 A Fixing clamp Note Avoid changes of direction immediately downstream of the distributor Observe the bending radius Connecting round ducts Trimming a round duct 90 1 Fig 28 Connecting a round duct 3 2x 2 1 Fig 29 Installing modular supply air extra...

Page 29: ... valley Also fix with cold shrink tape Round duct bending radius R Fig 31 Round duct bending radius Round duct Bending radius R Ext dia 75 75 mm Ext dia 90 95 mm Installing modular supply air extract air ductwork Connecting round ducts cont 5831646 Installation ...

Page 30: ...r using flexible pipes folded spiral seam tubes 1 2 4x Fig 32 2 First screw the air distribution box loosely to the ceiling Slide the air distribution box up against the ventilation unit Then tighten the screws Installing modular supply air extract air ductwork Air distribution box with silencing function 5831646 Installation ...

Page 31: ...lded spiral seam tubes 1 2 4x 3 Fig 33 2 Screw the air distribution box loosely to the ceiling 3 Pull the air distribution box up to the ventilation unit using the locking hooks Then tighten the screws on the air distribution box Installing modular supply air extract air ductwork Air distribution box with silencing function cont 5831646 Installation ...

Page 32: ...Vitovent 200 W 300 W and 300 F Modular air distribution box Connection options A Fig 34 Installing modular supply air extract air ductwork Air distribution box with silencing function cont 5831646 Installation ...

Page 33: ...dular air distribution box in a concrete ceiling B C A 2 3 6x 1 2 8 0 7 8 0 2 8 0 6 0 0 Fig 35 A Connecting plate B Wood panel form board C Foil 1 Secure wood panel form board B from below with connectors 3 Attach the connecting plate to the wood panel with 6 nails Installing modular supply air extract air ductwork Air distribution box with silencing function cont 5831646 Installation ...

Page 34: ...the upper chord of lat tice girders Secure the air duct every 50 cm along the lattice girder with cable ties Do not route the air duct in highly reinforced areas Maintain a clearance of 40 to 50 cm to edges corners and walls Note If parts of the upper chord of the lattice girder have to be detached during installation secure this sec tion from below with connectors Installing modular supply air ex...

Page 35: ...ng with retaining brackets Loosen the fixing screws in the retaining bracket slightly so that the air distribu tion box can be slid upwards Distance between retaining brackets Modular air distribution box Dim a in mm 590 630 770 810 Installing modular supply air extract air ductwork Air distribution box with silencing function cont 5831646 Installation ...

Page 36: ...ion cover with 12 screws 15 Align the air distribution box Tighten the screws in the retaining brackets Air distributors Connecting the 8 way air distributor 2 1 Fig 39 2 Click internal connectors audibly into place on both sides Installing modular supply air extract air ductwork Air distribution box with silencing function cont 5831646 Installation ...

Page 37: ...ir distributor Same installation procedure used to seal distributor connectors that are not required on 2 way air distribu tor 4 way air distributor 3x 1 1 2 3 Fig 41 Installing modular supply air extract air ductwork Air distributors cont 5831646 Installation ...

Page 38: ...tributor 1 2 Fig 42 1 Remove cover of the required connection aper ture No all round cut is required to remove the cover with a pipe wrench Installing modular supply air extract air ductwork Air distributors cont 5831646 Installation ...

Page 39: ...39 3 4 5 Fig 43 3 Apply lubricating paste before installing the seal ring Installing modular supply air extract air ductwork Air distributors cont 5831646 Installation ...

Page 40: ...ite sides with locking pieces Attaching the wall ceiling bracket 6x M6 4x M6 2 5 3 4 108 240 Ø 6 6 6x 1 Fig 45 Note Fixing materials for wall mounting on site Installing modular supply air extract air ductwork Air distributors cont 5831646 Installation ...

Page 41: ...s Connectors at 90 offset Fig 46 Connectors at 180 offset Fig 47 Connectors at 270 offset Fig 48 Connectors with no offset Fig 49 Installing modular supply air extract air ductwork Air distributors cont 5831646 Installation ...

Page 42: ...nnection straight D Supply air vent extract air vent kitchen extract air vent Installing in the ceiling B C D E A Fig 52 A Screed B Impact sound insulation C Flat duct D Diverter round to flat E Supply air vent extract air vent kitchen extract air vent Floor installation 140 A B C D Fig 53 A Screed B Impact sound insulation C Flat duct with compensating insulation 60 mm D Floor outlet Fitting the ...

Page 43: ...ng D Straight vent connection E Supply air vent extract air vent air vent Minimum wall thickness a Wall ceiling air vent in flat design 90 mm Wall ceiling air vent in comfort design 120 mm Supply air extract air vent See page 48 120 mm Fitting the supply extract air vents Installation versions supply air extract air cont 5831646 Installation ...

Page 44: ...re the bag of small parts before installing the air outlet Wall installation Dimensions and clearances to wall and floor 120 120 200 60 6 308 108 128 5 Fig 56 Fix the wall outlet to the wall at 4 points Provide rawl plugs and screws on site 7 5 mm Fitting the supply extract air vents Floor wall outlet 5831646 Installation ...

Page 45: ... screws on site 7 5 mm Installing the floor wall outlet 1 2 3 Fig 58 1 Insert a polystyrene block for stabilisation during installation Tip The bag of small parts can be stored in the air outlet until installation is complete 2 Close the cover tightly 3 Also fix the cover with adhesive tape Fitting the supply extract air vents Floor wall outlet cont 5831646 Installation ...

Page 46: ...nection piece seal ring before installation A B 5 Fig 60 A Cutting aid template B Top edge finished floor 6 Fig 61 6 Remove the polystyrene block Clean the floor out let Fitting the supply extract air vents Floor wall outlet cont 5831646 Installation ...

Page 47: ...47 8 8 7 2x Fig 62 9 4x Fig 63 10 11 A 12 Fig 64 12 Align the cover grille with the cage nuts A Fitting the supply extract air vents Floor wall outlet cont 5831646 Installation ...

Page 48: ... structure borne sound transmission Kitchen extract air vent B a 1 2 A 5 6 3 4x 4 Fig 66 A Grease filter made from aluminium mesh B Gasket Nominal diameter Dim a in mm DN 125 135 2 Insulate the ductwork connection with permanently flexible material against structure borne sound transmission Fitting the supply extract air vents Supply air extract air vent 5831646 Installation ...

Page 49: ...ion pipe Application Max position Supply air extract air vent See page 48 A 130 Wall ceiling air vent in comfort de sign A 130 Wall ceiling air vent flat design B 105 Fitting the supply extract air vents Vent connection straight 5831646 Installation ...

Page 50: ... dimension a as follows Supply air extract air vent see page 48 Min 50 mm Cover for inspection port Min 60 mm 2 4 3 Fig 69 2 If required insert a restrictor element first See page 55 6 5 Fig 70 Restrictor in flat design Fitting the supply extract air vents Wall ceiling air vent in flat design 5831646 Installation ...

Page 51: ...ig 72 Note Only install an air deflector insert in a wall ceiling air vent of the comfort design A Air deflector insert made from EPDM 4 Insert the air deflector insert into the groove on the inner cone Turn the air deflector insert to the required position 5 Screw the inner cone and air deflector insert in place Adjust the annular gap Fitting the supply extract air vents Wall ceiling air vent in ...

Page 52: ...2 7 8 9 A B Fig 73 A Air deflector insert made from EPDM B Supply extract air grille comfort design Fitting the supply extract air vents Wall ceiling air vent in comfort design cont 5831646 Installation ...

Page 53: ...nit 54 3 Presetting the air flow rate 54 4 Presetting supply air and extract air apertures 56 5 Adjusting the air flow rates 68 6 Balancing the air flow rates on the supply and extract air side 69 7 Cleaning the ductwork 69 8 Instructing the system user 71 Commissioning inspection maintenance Steps commissioning inspection and maintenance 5831646 ...

Page 54: ...tch on the ventilation unit Ventilation unit installation and service instruc tions Setting air flow rates on the ventilation unit Ventilation unit installation and service instruc tions Presetting the air flow rate Restrictor elements in the supply air extract air ductwork modular flat round Note Remove the calculated number of restrictor elements Restrictor elements in flat duct Fig 74 Example 3...

Page 55: ... h 10 20 30 40 50 0 10 20 30 40 50 Pressure drop in Pa A B C D E Fig 78 A Core B 1 ring C 2 rings D 3 rings E 4 rings Setting the air flow rate on the iris diaphragm Set the aperture of the iris diaphragm on the aperture ring scale Read the setting using the calculated air flow rate and the pressure drops from the diagrams The pressure can be determined at the test connector See Fig 22 on page 25 ...

Page 56: ... 3 4 5 108 144 252 Fig 80 Pressure drop graph iris diaphragm DN 160 Iris diaphragm DN 160 Value from graph Setting iris diaphragm 1 0 4 1 1 5 4 9 2 0 6 1 2 5 7 4 3 0 8 9 3 5 11 4 0 13 6 4 5 17 9 5 0 25 4 Measuring with impeller air speed meter iris diaphragm Measure the air speed with the impeller air speed meter or the air flow rate directly Observe the instructions of the test equipment manufact...

Page 57: ...entre of a room By repositioning deflector B the direction of the sup ply air can be adjusted e g for installation near a wall a b c B A Fig 81 A Width of annular gap B Deflector Max air flow rate 60 m3 h Nominal diameter Dimensions in mm a b c DN 125 76 18 173 Commissioning inspection maintenance Presetting supply air and extract air apertures cont 5831646 ...

Page 58: ... 2 Fig 82 A Aperture width of the annular gap in mm DN 125 air discharge angle 360 without deflector 10 60 50 40 30 20 20 40 50 60 80 100 10 Pressure drop in Pa Air flow rate in m h 4 9 A 12 15 70 90 30 6 2 Fig 83 A Aperture width of the annular gap in mm Commissioning inspection maintenance Presetting supply air and extract air apertures cont 5831646 ...

Page 59: ...llation DN 125 air discharge angle 360 Pressure drop 20 Pa Air flow rate 52 m3 h Annular gap to be set 6 mm 2 Set determined annular gap A at the supply air vent for ceiling installation 3 Record the value in the commissioning report Extract air vent Part no 7506394 A a Fig 84 A Vent cone setting in mm Nominal diameter DN 125 Dimension a 160 mm Max air flow rate 60 m3 h Commissioning inspection ma...

Page 60: ...em settings have been calculated set the vent based on the calculation Example Engineering plans provide the following details for the individual section Extract air vent for wall and ceiling installation Pressure drop 20 Pa Air flow rate 40 m3 h Vent cone setting 5 mm 2 Select determined vent cone setting A at the extract air vent for wall or ceiling installation 3 Record the actual value in the ...

Page 61: ... A Flow noise 35 dB A B Flow noise 30 dB A C Flow noise 25 dB A Extract air vent Part no ZK01862 A Fig 88 A Annular gap 300 200 100 60 50 40 30 20 10 40 50 60 100 200 300 350 9 6 3 0 3 6 9 Pressure drop in Pa Flow rate in m h A C B Fig 89 Pressure drop and flow noise with room attenuation of 4 dB A Flow noise 35 dB A B Flow noise 30 dB A C Flow noise 25 dB A Commissioning inspection maintenance Pr...

Page 62: ... flow rate 75 m3 h DN 125 80 70 60 50 40 30 20 20 40 50 60 80 100 10 Pressure drop in Pa Air flow rate in m h 10 30 70 90 Fig 91 A E Pressure drop curves for vent positions A Closed E Open Clear cross section 50 Commissioning inspection maintenance Presetting supply air and extract air apertures cont 5831646 ...

Page 63: ...ign fascia order fascia separately Restrictor can be adjusted in line with the intended air flow rate Max air flow rate 60 m3 h For diverter closed on one side and for straight through diverter Mounting ring 114 156 57 a Fig 93 Pressure drop in supply air mode Air flow rate in m h 20 30 40 50 60 70 100 150 200 Pressure drop in Pa 250 150 100 70 50 30 20 15 10 7 5 200 4 7 9 12 a in mm 17 20 25 30 3...

Page 64: ...ode Air flow rate in m h 4 7 9 12 a in mm 250 200 150 100 70 50 30 20 15 10 7 5 Pressure drop in Pa 17 20 25 30 35 40 20 30 40 50 60 70 100 150 200 A Fig 95 A Flow noise A weighted sound power level in dB A Wall ceiling air vent in flat design Part no ZK01855 Restrictor and fascia retainer order fascia sepa rately Restrictor can be adjusted in line with the intended air flow rate Including supply ...

Page 65: ...upply air mode A B C D E F Pressure drop in Pa Flow rate in m h 15 30 60 40 20 10 5 Fig 99 Extract air mode A B C D E F Pressure drop in Pa Flow rate in m h 3 5 10 20 40 80 15 30 60 Fig 100 A to C Pressure drop curves for vent positions A Closed B Half open C Open D to F Flow noise D 25 dB A E 30 dB A F 35 dB A Commissioning inspection maintenance Presetting supply air and extract air apertures co...

Page 66: ...n 1 G Open H Without spin discharge restrictor Pressure drop and flow noise with wide angle dis charge restrictor 7 171 170 Fig 103 Wide angle discharge restrictor for wall ceil ing air vent A B C D E F Pressure drop in Pa 5 10 20 40 80 15 30 60 Flow rate in m h Fig 104 Pressure drop and flow noise A to C Pressure drop curves for vent positions A Closed B Half open C Open D to F Flow noise D 25 dB...

Page 67: ...m settings have been calculated adjust the outlet based on the calculation 2 Slide the slider into the outlet vent retaining rail 3 Retighten the cover grille screws See page 47 0 Pressure drop in Pa 10 0 10 20 30 40 50 Flow rate in m h 20 40 30 A B C D E Fig 106 Pressure drop curves for different slider sizes A to E A 15 mm B 20 mm C 25 mm D 30 mm E Open Commissioning inspection maintenance Prese...

Page 68: ... air flow rate at the annular gap of the supply air extract air vent to be captured Where a measuring funnel cannot be used for example in larger supply air or extract air apertures such as floor outlets carry out several tests across the area and calculate an average value Note Adjusting air flow rates with the use of an impeller air speed meter will not provide high accuracy Deviations of 10 are...

Page 69: ...uct and or grille Use only commercially available domestic cleaning agents no scouring agents Do not use a high pressure cleaner Only install the grilles when dry Cleaning ductwork with an iris diaphragm If an iris diaphragm is installed in the ductwork note the diaphragm settings before opening Fully open the iris diaphragm After cleaning return the diaphragm to the correct setting Loosen the loc...

Page 70: ...rom the extract air vent 2 1 Fig 109 Cleaning the kitchen extract air vent Please note When the mechanical ventilation system is oper ating without a filter dust and grease settles in the ductwork This increases the air pressure drop Isolate the ventilation unit from the power supply or disconnect the power supply plug before removing the filter from the kitchen extract air vent 3 B A 1 2 Fig 110 ...

Page 71: ...en extract air vent Steps 1 to 3 in reverse order Replacing filters in the wall ceiling air vent Fig 111 Instructing the system user The installer must instruct the user in the operation of the system Commissioning inspection maintenance Cleaning the ductwork cont 5831646 ...

Page 72: ...air Living room Living room Dining room Bedroom Study Child s room 1 Child s room 2 Intended flow rate m h Supply air Extract air valve Preset aperture width First test average Air velocity m s Air flow rate m h Readjusted aperture width Second test average Air velocity m s Air flow rate m h Total supply air Extract air Kitchen Bathroom Guest WC Utility room Total extract air Fig 112 Commissioning...

Page 73: ...re width Second test average Air velocity m s Air flow rate m h Total supply air Extract air Kitchen Bathroom Guest WC Utility room Total extract air Sample person 160 163 152 46 25 25 25 30 30 25 160 60 45 20 25 160 Wall installation Wall installation Wall installation Ceiling installat Ceiling installat Ceiling installat 5 5 5 5 5 5 6 6 5 3 5 3 5 3 5 3 0 4 0 2 5 22 22 22 24 36 20 146 1 1 1 2 1 1...

Page 74: ...f ordi nary household waste For decommissioning the system isolate the system from the power supply and allow components to cool down where appropriate All components must be disposed of correctly Final decommissioning of the ventilation system Final decommissioning and disposal 5831646 Appendix ...

Page 75: ...stion air supply 11 Combustion equipment 11 Commissioning report 59 68 72 Example 73 Components Ductwork supply air extract air modular 26 Header 24 Condensate 8 11 Condensate drain connector 21 Connection cover 37 Connection dimensions components 24 Connection piece 26 Flat duct 8 9 Round duct 8 9 Connector 26 27 Countercurrent heat exchanger 11 Cover 26 Cover grille 27 D Deflector 57 Distributor...

Page 76: ...ip 23 Mounting ring 27 O Open flue combustion equipment 11 Operation With combustion equipment 11 With extractor hoods 11 Outdoor air exhaust air Vitovent 200 C 15 Vitovent 300 C 16 Outdoor air duct 15 16 Outdoor air filter box 14 Outdoor air or exhaust air duct 22 Outdoor and exhaust air add on 13 21 Outdoor and exhaust air duct 8 9 13 19 Overflow vent 9 P Pipe sleeve 23 Pipe with female connecti...

Page 77: ...Header 24 Outdoor air exhaust air 13 Supply air extract air modular flat round 26 System user instructing 71 T Thermal insulation 11 Ductwork 11 Measures 11 Two way air distributor 38 U Upper chord 34 Utilisation 6 V Vent cone setting 60 Vent connection straight 42 43 49 Ventilation unit switching on 54 Vent setting 63 W Wall ceiling air vent 26 27 50 Comfort design 63 Flat design 64 Pressure drop...

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Page 80: ... Shropshire TF1 7YP GB Telephone 44 1952 675000 Fax 44 1952 675040 E mail info uk viessmann com Viessmann Werke GmbH Co KG D 35107 Allendorf Telephone 49 6452 70 0 Fax 49 6452 70 2780 www viessmann com 5831646 Subject to technical modifications ...

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