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, MZ-One and Clust-Air are protected trademarks of inVENTer GmbH. Any other designation used in this documentation may be a trademark whose use by any third party and for the purposes of such third party may violate the rights of its holders.
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• inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
5.10 Installing the thermal accumulator insert and connecting the fan to the controller ..50 5.11 Performing a function test and starting up the ventilation system ........ 53 5.12 Fitting/removing the inner cover ................... 54 • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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Scope of supply ........................77 Accessories and spare parts ....................79 10 Servicing and maintenance ....................81 Troubleshooting and disposal ....................83 12 Warranty and service ......................85 Company details ........................87 • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
The user and safety instructions section contains basic instructions on how to operate the inVENTer ® iV14 ventilation system safely. Safety instructions Read all the instructions on installation, operation and maintenance of the inVENTer ® iV14 ventilation system provided in this section. Also observe any safety instructions that precede the operating instructions described.
Designation ► Instruction: instructs the operator to carry out an action Ö Ö Result: the result of carrying out the instructions Arrows in graphics: show the direction of installation • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
DIBt approval Z-51.3-156. Features • Pleasant room climate in workplaces, living rooms and bedrooms • Low power consumption • Can be used for wall thicknesses of 250 to 1050 mm (iV14R/iV14V) or 150 to 249 mm (iV14V-Ohio) • Wall sleeve can be extended by 50 mm using a sliding sleeve to adjust the length for façades retroitted with thermal insulation • Choice of inner cover (round/square) with integral dust ilter...
V-284x284 iV14R with inner cover R-D290 iV14V with inner cover V-220x200 iV14V with Ohio weather protection hood Fig. 1: Overview of iV14R/iV14V ventilation units 1 Interior plaster 8 Weather protection hood base plate/ 2 Inner cover base plate...
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SYSTEM OVERVIEW Wall sleeves Fig. 2: Wall sleeves for iV14R/iV14V ventilation unit 1 Wall sleeve R-D204x450/R-D204x650 2 Wall sleeve V-177x177x450/V-177x177x650 Extension set (optional) Wall sleeve R-D204 extension set Wall sleeve V-177x177 extension set Fig. 3: Extension sets for iV14R/iV14V ventilation unit 1 Extension duct iV14R-200 3 Extension duct iV14V-200 2 Sliding sleeve R-D210x100 4 Sliding sleeve V-186x186x100 •...
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SYSTEM OVERVIEW Thermal accumulator insert (with fan) Thermal accumulator insert iV14R Thermal accumulator insert iV14V Fig. 4: Thermal accumulator with fan 1 Thermal accumulator with insulation 4 Connection terminal for fan 2 Reversible fan 5 Handle 3 Connection terminal for controller...
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2 Weather protection hood cover 09 hood 4 Weather protection grille Weather protection hood 09 is suitable for iV14R and iV14V ventilation units with a wall thickness of 250 mm or above. The Ohio weather protection hood is to supplement the inVENTer ®...
For this reason, internal doors must not have an airtight seal. Air transfer measures must be implemented: an air gap of approx. 10 mm below the door, unscrewing door hinges by 5 mm, use of a ventilation grille, or other measures. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
1 Frame 3 Rotary button 2 Control unit cover 4 Ventilation slots The ZR8 controller is an electronic unit for controlling up to two inVENTer ® iV14 ventilation units. What sets it apart is its easy installation and simple operating concept.
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3 Rotary button 5 Blanking cover 2 Control unit cover 4 Ventilation slots The ZR10-D controller is an electronic unit for controlling up to four inVENTer ® iV14 ventilation units. In terms of operation and functionality, it corresponds with the ZR8 controller.
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2 Navigation arrow 5 Navigation arrow 3 Navigation arrow The MZ-One ® controller is an electronic control unit for controlling up to 16 inVENTer ® iV14 ® ventilation units. It comprises a programming unit and up to four Clust-Air...
Wall openings ≥ 250 ≥ 250 Ø iV14R iV14V Fig. 11: Dimensioned drawing for wall opening iV14R/iV14V 1 Wall opening 4 Outer edge of reveal 2 Position of weather protection hood 09 (insulation with plaster) 3 Door/window frame 5 Bottom edge of reveal (lintel) ≥...
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Fig. 13: Dimensioned drawing for wall sleeve R-D204x450 1 Wall sleeve 2 Fixing elements 3 Controller cable recess A - A 4 x M4 Fig. 14: Dimensioned drawing for wall sleeve V-177x177x450 1 Wall sleeve 2 Fixing element 3 Controller cable recess • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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PREPARINg FOR INSTALLATION Sliding sleeves A - A Fig. 15: Dimensioned drawing for sliding sleeve R-D210x100 1 Sliding sleeve 2 Fixing element A - A Fig. 16: Dimensioned drawing for sliding sleeve V-186x186x100 1 Sliding sleeve 2 Fixing element • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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4 Weather protection hood 09 base plate Weather protection hood 09 base plate Ø Fig. 18: Drilling pattern for weather protection hood 09 base plate 1 Corner drilling dia. 8mm, min. 50 mm deep • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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2 Inner cover base plate 5 Installation label 3 Inner cover panel (inVENTer logo) A - A Fig. 20: Dimensioned drawing for inner cover V-284x284 1 Spacer 3 Inner cover panel 2 Inner cover base plate 4 Insulation mat • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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2 Inner cover base plate A - A □ Fig. 22: Dimensioned drawing for inner cover Flair V-233x233 1 Spacer 5 Inner cover panel 6 Fixing points for iV14R 2 Inner cover base plate 7 Fixing points for iV14V 3 Sound insulation insert (optional) 4 Holding plate IB-V-233x233 • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
1.5 mm². This makes it possible to arrange the ventilation systems in a bus structure. We recommend using a LiYY3x0.75 round cable. Controller connector wiring Fig. 23: Connector assignment 1 White round cable 2 Green round cable 3 Brown round cable (Extract air) (Supply air) (Operating voltage) • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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The running direction of the fan depends on the alignment of the connector's locking screws. Start-up arrangement In extract air mode, the green connector's locking screws are pointing up and visible. The LED is not illuminated (see ig. 24: Start settings: Start direction for extract air). In supply air mode, the green connector is rotated. The locking screws are pointing down and are not visible. The LED illuminates (see ig. 24: Start settings: Start direction for supply air). • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
4 Installation and operating instructions 2 Protective discs 5 Weather protection hood 6 2-part expanding foam (optional) 3 Mounting wedges A sliding sleeve is available for wall thicknesses of 486 – 735 mm. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
ASSEMBLY AND INSTALLATION Completion set Fig. 26: Alternative completion sets 4 Inner cover V-220x200 1 Thermal accumulator insert iV14R 5 Inner cover V-284x284 2 Thermal accumulator insert iV14V 3 Inner cover R-D290 The completion set is installed from inside after completion of the conversion or new build.
This structure must be recreated up to the wall sleeve. A similar situation occurs when installing windows and doors – installation must be RAL-compliant Germany] and is regulated by standards. Apply this procedure to inVENTer ®...
Risk of injury and/or material losses! ► Provide protection against falling masonry on the outside of the building. ► Remove objects from immediate vicinity of the outside of the building. iV14R ventilation system Requirements: Masonry must be dry and load-bearing.
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(take note of insulation thickness and any shutters). Make sure that the wall opening is not near any radiators and maintain a minimum distance of 300 mm to the front. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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Ö Ö The wall opening and plaster/wall channel are now ready. Until the wall sleeve is inserted, the wall opening should be closed off inside and out. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
ASSEMBLY AND INSTALLATION Laying the controller cable Disconnect the power supply to the controller before sealing/connecting the cable. Seal/connect the cable only while it is not live. iV14R ventilation system Requirements: Wall opening ready. Plaster or wall channel has been made.
45° to the bottom left or top right. ► Route the controller cable (9) through the recess (8) into the wall sleeve (6). • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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NOTE Contamination of wall sleeve and ixing elements. Risk of damage to the insulation of the thermal accumulator so no longer possible to it the inner cover! ► Insert protective discs between the wall sleeve and masonry before illing the gap with foam. ► Insert protective discs (15) into the wall sleeve from outside and inside. Only remove thread locking on ixing elements once work on the wall is completed. This avoids contaminating the thread. Stabilise the wall sleeve before illing with foam by sliding in the thermal accumulator or suitable material to retain the shape. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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(18) until they are lush with the external and interior wall. Be careful not to damage the controller cable. ► Trim the wall sleeve (19) again if necessary so that it ends lush with the external and interior walls. Trim the edges. Wall sleeve R-D204 for weather protection hood 09 itted. Ö Ö • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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45° to the bottom left or top right. ► Route the controller cable (9) through the recess (8) into the wall sleeve (6). • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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Contamination of wall sleeve and ixing elements. Risk of damage to the cutout insulation of the thermal accumulator so no longer possible to it the inner cover! ► Insert protective discs between the wall sleeve and masonry before illing the gap with foam. ► Insert protective discs (15) into the wall sleeve from outside and inside. Only remove thread locking on ixing elements once work on the wall is completed. This avoids contaminating the thread. Stabilise the wall sleeve before illing with foam by sliding in the thermal accumulator or suitable material to retain the shape. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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(18) until they are lush with the external and interior walls. Be careful not to damage the controller cable. ► Trim the wall sleeve (19) again if necessary so that it ends lush with the external and interior walls. Trim the edges. Wall sleeve V-177x177 for weather protection hood 09 is itted. Ö Ö • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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(8). Make sure that the joint tape (9) does not protrude over the edge of the sliding sleeve (10). • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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Make sure that the sliding sleeve protrudes 95 mm from the exterior wall. Make sure that the wall sleeve ends lush with the interior wall. Continue with the wall sleeve installation (level alignment/foam application) as described in section 5.6: Fitting the wall sleeve ‒ wall sleeve V-177x177x450, page 36. Wall sleeve V-177x177 for Ohio weather protection hood is itted. Ö Ö • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
► Slide the two elements into each other until the calculated wall thickness is achieved. ► Seal the joint (9) between the wall sleeve and sliding sleeve with watertight duct tape (8) (available as an option). Sliding sleeve R-D210x100 is itted. Ö Ö • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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► Slide the two elements into each other until the calculated wall thickness is achieved. ► Seal the joint (10) between the wall sleeve and sliding sleeve with watertight duct tape (9) (available as an option). Sliding sleeve V-186x186x100 is itted. Ö Ö • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
Fitting sealing tapes to wall sleeve R-D204 Requirements: Exterior wall inished and level. Wall sleeve is itted. ► Remove the protective disc (2) from the wall sleeve (1) from the exterior wall side. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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► Apply the sealing tape, 9 mm, (7) all round the front side of the wall sleeve. The sealing tapes on the wall sleeve R-D204 for weather protection hood 09 are itted. Ö Ö Continue with mounting the weather protection hood 09, page 46. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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(25). ► Apply the sealing tape, 9 mm, (26) all round the front side of the wall sleeve. The sealing tapes on the wall sleeve V-177x177 for weather protection hood 09 are itted. Ö Ö • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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This allows the fan and thermal accumulator to be installed later. When itting the base plate for the weather protection hood 09 on exterior walls with thermal insulation, use wall plugs for insulation for a secure hold. These are not part of the scope of supply, but are available as an option. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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(11) down as far as it will go. Make sure that the guides (12) on the weather protection hood cover hook in behind the base plate of the weather protection hood (13). • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
Make sure that the blue marking point is pointing upwards on the opposite side (front). The sealing tape (1) must have a gap (3) of 10 mm at the bottom in the centre. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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► Using four self-tapping screws (14), secure the weather protection grille (13) to the ixing bars (12) on the sleeve of the weather protection hood. Make sure that the slat openings are facing outwards and downwards. The weather protection grille V-230x240 can also be afixed to the exterior wall as a separate component. To do so, seal the weather protection grille on the exterior wall side with sealing tape and screw the grille directly to the exterior wall. Make sure that the slat openings are facing outwards and down. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
► Insert the thermal accumulator immediately on removing it from the packaging. Disconnect the power supply to the controller before sealing/connecting the cable. Connect the cable only while it is not live. iV14R ventilation system Requirements: Weather protection hood is itted. ► Remove the protective disc from the wall sleeve.
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► Insert the thermal accumulator insert (1) into the wall sleeve (2) from the interior. Make sure that the fan points into the interior. Make sure that the controller cable (3) protrudes into the interior. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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(11). Make sure that the locking screws (9) on the connector (10) are pointing up. Extract air mode is selected. Ö Ö 11 10 Ö Ö Fan is connected to the controller. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
► Rotate the connector (2) by 180°. ► Plug the controller connector (2) back into the green socket (1) on the plug connector of fan bus with the locking screws pointing down. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
Fitting inner cover R-D290 How to install inner cover R-D290 is shown below using a round wall sleeve as an example. The same steps should be followed when installing a square wall sleeve. Requirements: Thermal accumulator insert is itted. The reversible fan's start direction is set. ► Remove the hex key (2) from the inner cover base plate (1). • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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ASSEMBLY AND INSTALLATION ► Place the inner cover base plate (4) over the ixing elements (3) for the wall sleeve. Make sure that the inVENTer ® logo (5) on the inner cover base plate (4) is at the bottom. ► Loosely turn the screws and washers (7) into the ixing elements (6) on the wall sleeve.
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Make sure, that the long spacers (green arrows) are pointing upwards. ► Loosely turn the screws and washers (6) into the ixing elements (3) on the wall sleeve. ► Tighten the screws for the inner cover base plate (7) using the hex key (8). Make sure that you it the dust ilter correctly to prevent the ventilation unit malfunctioning. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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Ö Fitting inner cover V-220x200 It is only possible to install inner cover V-220x200 in conjunction with wall sleeve V-177x177x450 and V-177x177x650. Requirement: The thermal accumulator insert is itted. The reversible fan's start direction is set. ► Place the inner cover base plate (3) over the ixing elements (1) for the wall sleeve (2) on the interior wall. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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Make sure that you press the locking lugs (green arrows) on the spacers (12) inwards. ► Push the inner cover panel (13) onto the spacers (12). All spacers must click into place. Inner cover V-220x200 is itted. Ö Ö • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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Lugs broken from inner cover when installating on iV14V ventilation system.. Inner cover Flair V-233x233 cannot be installed on iV14V ventilation system! ► iV14R ventilation system: Break out the lugs on predetermined breaking points. ► iV14V ventilation system: Do not break out the lugs on predetermined breaking points. iV14R ventilation system: ►...
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Ö Removing inner cover R-D290/V-284x284/V-220x200/ Flair V-233x233 Requirements: Thermal accumulator/fan is itted. The fan's start direction is set. ► Remove the inner cover in the reverse sequence. Ö Ö Inner cover is removed. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
Inner cover R-D290 is closed Opening inner cover R-D290 Requirement: The panel of the inner cover is closed ► Turn the inner cover panel (1) anticlockwise. Ö Ö Opening inner cover R-D290 • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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► Press the panel inner cover (6) onto the two short detent lugs (5) in the lower part of the inner cover base plate. The inner cover must click into place. Inner cover V-284x284 is closed. Ö Ö • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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(4) on the base plate inner cover. ► Press the inner cover panel (5) into the long spacer at bottom centre. The inner cover must click into place. Inner cover V-284x284 is open. Ö Ö • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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The panel of the inner cover is closed. ► Pull the panel of the inner cover (1) forwards until all four spacers snap into place. Ö Ö Inner cover is open. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
(1) until it unclips. (If the inner cover is closed, pull it from behind the web at the bottom). ► Lift the inner cover panel (1) up and off. Panel of the inner cover V-284x284 is removed. Ö Ö • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
As a result the inner cover is closed on the toppled side. Thus the airlow is guided to the open direction. If you, as an example, topple the inner cover's panel down, the airlow will be guided upwards. The noise emission is reduced. Please note that the air low volume is being reduced in case the inner cover is not fully opened. How to topple the panel is shown below describing the toppling down. The same steps should be followed when toppling the panel downwardly open or toppling inner cover V-220x200. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
Replacing dust ilters dust ilters have a very long service life and can be washed numerous times. We ® The inVENTer recommend cleaning the dust ilters regularly. Inner cover R-D290 Requirements: The reversible fan is switched off at the controller. The inner cover panel is removed. ► Remove the dust ilter (2) from the inner cover base plate (1). • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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Dust ilter has been replaced. Ö Ö Inner cover V-284x284 Requirement: The reversible fan is switched off at the controller. The inner cover panel is removed. ► Remove the dust ilter (2) from the inner cover base plate (1). • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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Inner cover V-220x200/ inner cover Flair V-233x233 How to close inner cover is shown below using inner cover V-220x200 as an example. The same steps should be followed when iremoving Flair V-233x233. Requirement: The reversible fan is switched off at the controller. The inner cover panel is removed. ► Pull the dust ilter (1) by the tab (2) from the inner cover base plate (3). • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
Switch off the fan at the controller before removing the thermal accumulator insert and wear gloves. Installing and removing the thermal accumulator is shown here using the inner cover R-D290 and round wall sleeve as an example. The same steps should be followed when installing inner covers V-284x284, V-220x200, lair V-233x233 and the square wall sleeve. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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► Detach the handle (3) from the corners of the fan. ► Remove the thermal accumulator insert (5) by the handle (6). Ö Ö The thermal accumulator insert is removed. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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► Push the connected thermal accumulator insert (8) into the wall sleeve (9) as far as it will go. Ö Ö The thermal accumulator insert is installed. Further installation information is provided in section 5.12: Assembly and installation ‒ Fitting the inner cover. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
► Clean the fan blades with a soft paint brush. ► Insert the reversible fan (5) into the thermal accumulator insert (4). Ö Ö The thermal accumulator insert is cleaned. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
Thermal accumulator insert Feature Value Width/height/depth (iV14V) 169 mm/169 mm/225 mm Diameter/depth (iV14R) 196 mm/225 mm Weight (iV14R/iV14V) 2600 g/2640 g Thermal capacity 877 J/kg·K Thermal conductivity 2.1 W/m·K Max. 60 °C Operating temperature • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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Weight 840 g Colour White – RAL9010 Inner cover Flair V-233x233 Feature Value Width/height/depth – open (closed) 233 mm/233 mm/61 mm (43 mm) Weight 840 g Colour White – RAL9010 • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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Value Width/height/depth 230 mm/247 mm/110 mm Weight 1640 g Grey ‒ RAL9006 Colour Weather protection grille V-230x240 Feature Value Width/height/depth 230 mm/240 mm/14 mm Weight 380 g White – RAL9016 Colour Grey ‒ RAL9006 • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
Micro ilter for inner cover R-D290 (2 pce) 1004-0065 Micro ilter for inner cover V-284x284 (2 pce) 1004-0063 Micro ilter for inner cover Flair (2 pce) 1004-0144 Wind protection device iV14 1004-0069 Storm blocker WSH-09 1004-0068 Round cable (33 m, 3-wire) 1004-0020 Fabric tape, self adhessive, 50 m x 48 mm 1004-0050 2-part expanding foam (for companies only) 1004-0050 SDE = sound insulation insert • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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ACCESSORIES AND SPARE PARTS Spare parts Component Order number Thermal accumulator insert iV14R (with fan) 1507-0001 Thermal accumulator insert iV14V (with fan) 1507-0002 Reversible fan iV14R + BUS connector 4.0 2007-0012 Base plate IB-R-D290, white 2003-0026 Base plate IB-R-D290, white, SDE 2003-0031 Panel IB-R-D290, white 2003-0027...
Switch off the fan at the controller before removing the thermal accumulator and wear gloves. Cleaning agents Clean using a normal commercial detergent and warm water. The following equipment can be used for cleaning: • Lint-free soft cloth • Soft paintbrush • Vacuum cleaner • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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SERVICINg AND MAINTENANCE Recommended maintenance schedule The listed maintenance activities and intervals are recommendations of the inVENTer GmbH. As required your personal maintenance schedule may deviate. Frequency Assembly Maintenance task Micro ilter Replace ine ilter. Monthly Pollen ilter Replace pollen ilter. Monthly Monthly Inner cover panel Wipe panel surface with damp cloth.
Check that the connector is plugged in correctly at the controller. The connector Installation error. must be plugged irmly into the connector Supply air cold housing. Controller working in Switch on heat recovery mode at the ventilation mode. controller. • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
Ventilation system The inVENTer ® iV14R/V ventilation system is covered by a two-year manufacturer’s warranty. The thermal accumulator has an eight-year warranty. Any warranty claim will be void in the following cases: • In the event of any losses caused by any incorrect or inappropriate use or handling or any failure to observe the installation and operating instructions.
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WARRANTY AND SERVICE NOTES Notes • inVENTer ® iV14R/iV14V ventilation system Installation and operating instructions...
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