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9/NXT-IBF Inner screen Nexxt

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Installation Instructions

Technical specifications

Technical specificationsX

Properties	Ne^xxt-E
Volume flow ³⁾	15 - 110 m³/h
Max. degree of heat provision ⁷⁾	96 %
Heat provision level according to EN 13141-8 ^c)	25 m³/h: 96 % 50 m³/h: 89 % 75 m³/h: 84 %
Max. standard sound level difference D_{n,e,w ³⁾}	49 dB
Sound power level LW _³⁾	from 20 dB(A)
Power consumption _{^{3) 8)}}	22 W
Supply voltage	200 - 240 V \| 50/60 Hz (115 V \| 60 Hz on request)
Core hole	162 mm
Minimum installation length	surface: 110 mm, flush: 280 mm
Depth for wall mounting	172 mm housing + 105 mm flap closure in wall feed-through
Dimensions of the device	480 mm x 480 mm x 170 mm
Size inner screen	510 mm x 510 mm x 66 mm
Size outer hood	235 mm x 205 mm x 72 mm
Energy efficiency class	A
Protection class	IP22

(1-9, a-g) For further information on the technical data specifications click here.

The Nexxt: With heat recovery

For the highest hygiene standards

Heat recovery unit

The Nexxt is a heat recovery unit which, due to its high volume flow, is ideally suited for use in kindergartens, schools, offices, hotels, doctors' surgeries, but also for flats and houses.

Special features

Due to its very low power requirements, the Nexxt is very energy-efficient and enables low power consumption. The integrated control system ensures perfect interaction between the various components. Equipped with humidity-temperature sensors, the automatic control system ensures efficient ventilation with humidity protection even in the standard version. Optionally, the Nexxt can be equipped with the FM-EO wireless module for control and communication with other LUNOS components and for Smart Home integration.

The enthalpy heat exchanger achieves a heat recovery efficiency up to 84%. In addition, the mode of operation of the heat exchanger ensures largely ice-free operation and comfort in the interior even with cold outside air.

For the highest demands on hygiene: filters up to filter class F9 or epm1 80%.

Installation

Install the ventilation unit with a recommended minimum lateral clearance of 30 cm and a recommended minimum upward and downward clearance of 15 cm. The lateral distance is to ensure the ventilation function, the distance upwards and downwards is for mounting clearance. We recommend installing the unit at a height of 1.50 m to ensure user-friendly operation.

Extra

The diagnostic software from LUNOS can be connected to the Nexxt. You can read about the advantages of this here.

Optional electric damper lock: Opens or closes the wall duct automatically when the unit is switched on or off.

Art.-no. 40130

Information on the technical data

Show technical data

1) Silvento V are fan inserts that still require a flush-mounted or surface-mounted housing.

2) Silvento KL are complete single-pipe fans that are clamped into pre-wall constructions. Silvento KL single-pipe fans fit into the flush-mounted housings of the LUNOS Skalar series.

3) The specified values are achieved at 20°C, 1013hPa and 1.2kg/m3 ambient air density and (unless otherwise specified) are achievable between free-blowing condition and 60 Pa disturbance pressure in accordance with DIN18017-3.

4) When designing the volume flows, please observe the pressure-volume flow characteristics provided by LUNOS and the specifications of the abZ (DIBt approval)

5) Sound power level: The sound power level indicates how "loud" a device is. The value is independent of the distance.

6) Volume flow rate of the ALD-SV with a straight arrangement of the sound attenuation elements.

7) Max. achievable WBG according to EN13141-8 with reference volume flow rate.

8) At 70 % of the maximum volume flow rate, in accordance with ErP Directive, EU Regulation 1254/2014.

9) According to LÜA (test specification) of the DIBt and EN13141-8 max. achievable exhaust air volume flow free-blowing at 20°C and 1013hPa ambient conditions and 1.2kg/m3 ambient air density.

a) According to LÜA (test specification) of the DIBt, see also proof of usability (abZ), when using the wall-mounted housing 9/MRD as insulation, without 9/MRD 2% deduction.

b) According to LÜA (test specification) of the DIBt, max. achievable value.

c) According to EN 13141-8 with reference volume flow, see also certificate of usability (abZ) of the DIBt.

d) According to LÜA (test specification) of the DIBt and EN13141-7 max. achievable exhaust air volume flow free-blowing at 20°C and 1013hPa ambient conditions and 1.2kg/m3 ambient air density.

e) According to EN 13141-7 at reference volume flow rate, see also proof of usability (abZ) of the DIBt.

f) Determined by the Passive House Institute (PHI), see PHI certificate.

g) Sound pressure level at 1m distance, single-point measurement. All figures are mathematically rounded.

All figures are mathematically rounded.

For the informal ventilation concept!