Ventilation unit with heat recovery SMARTY 4X V – wall-mounted, DN 160, 560 m³/h – SPECIAL OFFER

Product detailed description

What it is used for

SMARTY 4X V (code IVU400V) is a central ventilation unit with heat recovery for apartments, family homes and passive houses. It extracts stale air and excess moisture and replaces it with fresh outdoor air, which is preheated in the heat exchanger by the heat of the outgoing air – the house is ventilated without opening windows and with minimal heat loss.

The unit is mounted on a wall and can be installed, for example, above a washing machine. The version with an enthalpic heat exchanger has the code IVU400VE (SMARTY 4X VE).

Construction and equipment

• plastic counterflow plate heat exchanger with a thermal efficiency of 83.1 % (data according to EU Regulation 1254/2014), energy efficiency class A for average climate
• EC fans with variable speed control – power consumption at maximum flow 349 W, reference specific power index SPI 0.36 W/(m³/h), sound power level 58 dB(A)
• summer bypass with a servomotor for 100 % bypass of the heat exchanger and night cooling
• Coarse 65 % (G4) filters on the intake and exhaust, dimensions 475 × 180 × 25 mm (exhaust) and 475 × 134 × 25 mm (intake); for outdoor air, it is possible to use ePM1 70 % (F7) filters
• enclosure made of galvanized steel with powder coating in white RAL 9016 color (corrosion resistance C3), thermal and acoustic insulation of EPP thickness 30 mm, tightness class A1
• built-in electric preheater 1.2 kW

Control and accessories

The integrated control board miniMCB measures the temperature of the outdoor, supplied and extracted air and controls the fans, bypass and external components (preheater, reheater, air regulators). It offers three manual modes, intensive ventilation (boost), a timer, night cooling, a fireplace mode and intelligent anti-frost protection; it is possible to connect a CO2 sensor (IVAR.CO2) or a humidity sensor.

The controller is not part of the unit – the wall controller (IVAR.TCP, IVAR.ST-SA, IVAR.STOUCH) or the interface IVAR.MB-GATEWAY, which allows control from a PC and via the IVAR.SMARTYAIR app on a smartphone or tablet, must be ordered separately. As an add-on, the electric reheater IVAR.EKA NI (1.2 kW) is offered, which requires control via GRGT034. For connecting ISO pipe DN 160, the sealing kit ZIZG0007SET is used.

Installation

The dimensions of the unit (width × depth × height) are 599 × 538 × 810 mm, weight 46 kg. It is powered by a single-phase network 230 V / 50 Hz, total power / consumption is 1.6 kW / 8.15 A. The unit operates inside the building at ambient temperature 5 to 40 °C and ambient humidity up to 70 %; without anti-frost protection, it can process outdoor air from -10 °C. Anti-frost protection works with flow imbalance and can create negative pressure in the house – for devices that take air from the room (fireplace, boiler), the manufacturer recommends turning it off and using a preheater. It is not installed in living rooms without additional sound insulation and is not intended for pools or saunas. Installation, electrical connection and maintenance must be performed only by a qualified technician and the unit must be grounded.

Technical parameters

Frequently asked questions

What is included in the delivery and what needs to be ordered separately?
You will receive a trap and a bracket together with the unit. The controller (IVAR.TCP, IVAR.ST-SA, IVAR.STOUCH or interface IVAR.MB-GATEWAY) and the ventilation duct must be ordered separately.

Where should the unit not be installed?
Only in living rooms with additional sound insulation and never in pools, saunas or similar areas. The unit is intended for indoor use with ambient temperature 5 to 40 °C and humidity up to 70 %.

How often are the filters changed?
The manufacturer recommends changing them every 3 to 4 months or sooner according to the warning on the controller. Coarse 65 % (G4) filters with dimensions 475 × 180 × 25 mm (exhaust) and 475 × 134 × 25 mm (intake) are used, as well as ePM1 70 % (F7) for outdoor air; the unit must not be operated without filters.

Does the unit have its own preheater?
Yes, SMARTY 4X V has a built-in electric preheater of 1.2 kW and without anti-frost protection it operates with outdoor air from -10 °C. The IVAR.EKA NI can be added for reheating the supplied air with control via GRGT034.