Series Vents DVUT/DVUE HB EC V.2

Name: Vents DVUT/DVUE HB EC V.2
Brand: VENTS
Availability: InStock

School floor-mounted AHUs

Heat exchanger type: Counter flow
Sound-insulated casing
Motor type: EC
Bypass: Auto
BMS protocol: ModBus
Humidity sensor: Optional
CO2 sensor: Optional
VOC sensor: Optional
PM2.5 sensor: Optional

FEATURES

Efficient supply and exhaust ventilation of individual spaces.
Modification with an electric preheater or reheater available.
Modification with an enthalpy membrane heat exchanger available.

Low-energy EC fans.
Low noise operation.
Simple installation.
Contemporary design.

OPERATING PRINCIPLE

Warm, stale indoor air passes through the filter and the heat exchanger and is then extracted outdoors through the wall duct by the centrifugal extract fan.
Cold outdoor air passes through the filters and the heat exchanger and then is supplied by means of the centrifugal supply fan.
The heat of extracted air is transferred to supply air by means of the heat exchanger, providing comfortable fresh air temperature and reducing costs for its heating.

CASING

The casing is made from high-quality polymercoated steel with internal heat and sound insulation made of mineral wool from 40 to 80 mm in thickness.
The contemporary design helps the units blend in nicely with a wide variety of interiors.

FANS

The units feature high-performance, electronically commutated (EC), external rotor motors with forward curved blades. These state-of-theart units offer excellent energy efficiency. In addition to that, EC motors combine high performance and optimum control over the entire speed range. EC motors have an excellent power efficiency (up to 90 %).

AIR DAMPERS

Supply and exhaust dampers are closed automatically while the unit is off to prevent drafts.

PREHEATING

The DVUT HBE EC V.2 and DVUT HBE2 EC V.2 units are equipped with an electric preheater to prevent heat exchanger freezing.

AIR FILTRATION

Exhaust cassette filter: ISO Coarse >60% (G4).
Supply cassette filter: ISO ePM1 60% (F7).

BYPASS

The units are equipped with a bypass for summer ventilation.

HEAT EXCHANGER

The DVUT units feature a counter-flow heat exchanger made of polystyrene.

The heat of the extract air is transferred to the supply air via the heat exchanger which greatly helps reduce ventilation heat losses. This can lead to formation of condensate that is collected in a special drain pan and discharged into the sewage system.
In the warm season the outdoor air heat is transferred to extract air. This enables considerable reduction of the supply air temperature which reduces the air conditioning load.

The DVUE units are equipped with a counter-flow enthalpy heat exchanger.

In the cold season the extract air heat and moisture are transferred to the supply air stream through the enthalpy membrane. Heat recovery minimises heat losses from ventilation.
In the warm season the outdoor air heat and moisture are transferred to the extract air stream through the enthalpy membrane. This enables considerable reduction of the supply air temperature and humidity, which reduces the air conditioning load.

UNIT CONTROL AND OPERATION

Freeze protection

There are two methods of protecting the heat exchanger against freezing in cold conditions.

In units without an electric preheater the supply fan is shut down automatically, using the feedback from the extract air temperature sensor, to let the warm extract air thaw the heat exchanger. The supply fan then re-activates and the unit reverts to normal operation.
In units with an electric preheater the supply air is warmed up before entering the heat exchanger which prevents freezing. This method ensures a continuous balanced air exchange.

Control

The units DVUT/DVUE HB EC V.2 A21 are equipped with an in-built control system.

An A21 controller allows integrating the unit into the Smart Home system or BMS (Building Management Systems).

Remote control panel is not included in the delivery set and is available as a specially ordered accessory.

The unit is controlled by the Vents Home application on the mobile device. The application is available for download at App Store, Play Market or via the QR code.

Lineup Vents DVUT/DVUE HB EC V.2	Rated power, W	Maximum airflow, m³/h	Heat recovery efficiency, max, %	Heat exchanger type	Control system	Control	Mounting	Preheater	Reheater
Vents DVUT 300 HB EC A21 V.2	96	320	94	Counter flow	A21	Smartphone	Floor
Vents DVUT 300 HBE EC A21 V.2	96	320	94	Counter flow	A21	Smartphone	Floor	Electric
Vents DVUT 300 HBE2 EC A21 V.2	96	320	94	Counter flow	A21	Smartphone	Floor	Electric	Electric
Vents DVUE 300 HB EC A21 V.2	96	320	89	Counter flow	A21	Smartphone	Floor
Vents DVUE 300 HBE EC A21 V.2	96	320	89	Counter flow	A21	Smartphone	Floor	Electric
Vents DVUE 300 HBE2 EC A21 V.2	96	320	89	Counter flow	A21	Smartphone	Floor	Electric	Electric
Vents DVUT 500 HB EC A21 V.2	370	580	94	Counter flow	A21	Smartphone	Floor
Vents DVUT 500 HBE EC A21 V.2	370	580	94	Counter flow	A21	Smartphone	Floor	Electric
Vents DVUT 500 HBE2 EC A21 V.2	370	580	94	Counter flow	A21	Smartphone	Floor	Electric	Electric
Vents DVUT 1200 HB EC L A21 V.2	345	1240	96	Counter flow	A21	Smartphone	Floor
Vents DVUT 1200 HBE EC L A21 V.2	345	1240	96	Counter flow	A21	Smartphone	Floor	Electric
Vents DVUT 1200 HBE2 EC L A21 V.2	345	1240	96	Counter flow	A21	Smartphone	Floor	Electric	Electric
Vents DVUT 1200 HB EC R A21 V.2	345	1240	96	Counter flow	A21	Smartphone	Floor
Vents DVUT 1200 HBE EC R A21 V.2	345	1240	96	Counter flow	A21	Smartphone	Floor	Electric
Vents DVUT 1200 HBE2 EC R A21 V.2	345	1240	96	Counter flow	A21	Smartphone	Floor	Electric	Electric