NARAH 160 ventilation unit with heat recovery

Cabinet

is made from durable, hardened white plastic. The part of the unit containing the heat exchanger allows for installation in walls with a thickness of 250–490 mm (a 700 mm extension is available as an optional accessory). The interior of the unit is fitted with a stylish front panel featuring a digital display for unit control.

Fan

The unit is fitted with a reversible axial fan with a DC motor. The fan is designed for continuous operation.

Motor

A brushless motor with electronic control and low power consumption.

Regeneration

The unit is fitted with a ceramic regeneration heat exchanger. It achieves a total heat recovery efficiency of up to 94 per cent. For easy maintenance and servicing, the heat exchanger is accessible once the unit’s internal cover has been removed.

Filters

A G3-class filter (ISO coarse 60 per cent) is fitted on both sides of the heat exchanger.

Installation

The unit is designed for indoor wall mounting. The unit may only be installed with the heat exchanger body in a horizontal position, with a minimum slope of 1 per cent towards the outer edge of the wall. The telescopic tube containing the heat exchanger, fan and filters can be adjusted to suit wall thicknesses ranging from 250 to 490 mm (length 700 mm when using an alternative extension as part of the optional accessories). The supply also includes an internal designer cover with a digital display and an external façade grille.

Electrical connection

A three-core 230 V / 50 Hz power cable is routed from the unit.

Control

The unit features a fully automatic mode which, based on an integrated humidity sensor, ensures smooth speed control without the need for any further intervention in the unit’s operation. It is also possible to control the unit manually. The stylish remote control (included) allows you to set the ventilation intensity to one of four levels, select ‘supply only’ mode, ‘night-time silent’ mode and ‘by-pass’ mode. In the standard supply and extract alternation mode, the airflow change interval is set to 60 seconds. Up to 4 units can be synchronised wirelessly without the need for any additional accessories. The unit can also be controlled using wireless air quality sensors from the AIRSENS RF.2 series, or a wireless BOOST RF.2 button can be added to the unit.

Noise

The tables show the sound power level measured at air flow rates of 45 and 60 m^³/h.

Accessories

•  AIRSENS RF.2 CO2 / VOC / RH external wireless sensors for CO2, VOC or relative humidity concentrations in the air, for controlling ventilation intensity (an integrated RH sensor is already included in the air handling unit)
• BOOST-RF.2 wireless button for increasing output
• SPCM NARAH communication module for remote unit management
• PULSE 160-W concealed façade element for air intake and exhaust
• PULSE 160 T700 700 mm mounting tube
• AFR-NARAH 160 G3 G3 replacement filters
• AFR-NARAH 160 F7 F7 replacement filters

Information

A local ventilation unit designed for new builds and refurbishments of detached houses and blocks of flats. It is characterised by simple installation requiring only minor structural alterations (an opening in the building envelope), making it an ideal solution, particularly for refurbishments.