Heat recovery ventilation unit SMARTY 4X VE – wall-mounted, enthalpy exchanger, DN 160, 560 m³/h – SALE

Product detailed description

Application

SMARTY 4X VE (code IVU400VE) is a central heat recovery ventilation unit for flats, family houses and passive houses. It removes stale air and excess humidity and replaces them with fresh outdoor air that is pre-warmed in the exchanger by the outgoing air – the house is ventilated without opening windows and with low heat losses.

The unit is mounted on the wall and can be placed, for example, above a washing machine. The SMARTY 4X VE version has an enthalpy exchanger that transfers part of the moisture to the supply air in addition to heat; the version with a standard exchanger has code IVU400V.

Design and equipment

• counterflow enthalpy exchanger with a thermal efficiency of 78.4 % (as per Regulation (EU) 1254/2014), energy class A for the average climate
• EC fans with variable speed control – power input at maximum flow 349 W, reference specific power input SPI 0.36 W/(m³/h), sound power level 58 dB(A)
• summer bypass with actuator for 100 % bypass of the exchanger and night cooling
• Coarse 65 % (G4) filters on supply and extract, size 475 × 180 × 25 mm (extract) and 475 × 134 × 25 mm (supply); an ePM1 70 % (F7) filter can be used for the outdoor air
• galvanised steel casing with white powder coating RAL 9016 (corrosion resistance C3), thermal and acoustic insulation made of 30 mm EPP, airtightness class A1
• built-in 1.2 kW electric pre-heater

Control and accessories

The integrated miniMCB control board measures the outdoor, supply and extract air temperatures and controls the fans, the bypass and external components (pre-heater, post-heater, air regulators). It offers three manual modes, boost ventilation, a time schedule, night cooling, a fireplace mode and intelligent frost protection; a CO2 sensor (IVAR.CO2) or humidity sensor can be connected.

A controller is not included – order the wall controller (IVAR.TCP, IVAR.ST-SA, IVAR.STOUCH) or the IVAR.MB-GATEWAY interface for operation from a PC and via the IVAR.SMARTYAIR app on a smartphone or tablet. The IVAR.EKA NI electric post-heater (1.2 kW), which requires the GRGT034 control, is available as an add-on. The ZIZG0007SET seal set is used to connect DN 160 ISO ducts.

Installation

The unit dimensions (width × depth × height) are 599 × 538 × 810 mm, weight 46 kg. It is supplied from a single-phase 230 V / 50 Hz mains, total power input/current 1.6 kW / 8.15 A. The unit operates indoors at an ambient temperature of 5 to 40 °C and ambient humidity up to 70 %; without frost protection it handles outdoor air from -15 °C. Frost protection works with unbalanced air flows and may create negative pressure in the house – with appliances that draw air from the room (fireplace, boiler), the manufacturer recommends switching it off and using a pre-heater. Without additional sound insulation it is not installed in living rooms, and it is not intended for swimming pools or saunas. Installation, electrical connection and maintenance are reserved for a qualified technician, and the unit must be earthed.

Technical data

Frequently asked questions

What is supplied with the unit and what has to be ordered separately?
The unit comes with a siphon and a bracket. The controller (IVAR.TCP, IVAR.ST-SA, IVAR.STOUCH or the IVAR.MB-GATEWAY interface) and the air ducts are ordered separately.

Where must the unit not be installed?
In living rooms only with additional sound insulation, and never in swimming pools, saunas or similar rooms. The unit is intended for indoor spaces with an ambient temperature of 5 to 40 °C and humidity up to 70 %.

How often should the filters be replaced?
The manufacturer recommends replacement every 3 to 4 months, or sooner when indicated on the controller. Coarse 65 % (G4) filters sized 475 × 180 × 25 mm (extract) and 475 × 134 × 25 mm (supply) are used, and ePM1 70 % (F7) is also available for the outdoor air; the unit must never run without filters.

Does the unit have its own pre-heater?
Yes, the SMARTY 4X VE has a built-in 1.2 kW electric pre-heater and operates without frost protection with outdoor air from -15 °C. The IVAR.EKA NI with GRGT034 control can be added for heating the supply air.