VENTS DVUT 1200 HBE EC

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Floor-mounted single-room air handling unit with air flow up to 1240 m³/h in a heat and sound-insulated casing. Heat recovery efficiency up to 96 %.

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Description
Characteristics
Capacity diagram
Downloads
Dimensions
Additional characteristics
Designation key
Accessories

Description

DESCRIPTION

The DVUT HB EC and DVUE HB EC air handling units are intended for single-room ventilation of schools, offices and other public and commercial spaces.

These air handling units do not require a duct system and provide a simple yet efficient ventilation solution for newly built and renovated spaces.

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 (25-35 dBA).
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.

AIR DAMPERS

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

AIR FILTRATION

Filtering class depends on standard sizes and is specified in the table with characteristics.

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 %).

PREHEATING

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

REHEATING

The DVUT HBE2 EC units are equipped with electric reheaters to raise the supply air temperature.

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 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 specially ordered accessory. The unit is controlled via Wi-Fi by means of the VENTS AHU mobile application that must be downloaded.

Function	А21	А14
Wired remote control panel	Option (A22)	A14
Wired remote LCD control panel	Option (A25)	-
Wireless remote control panel	Option (A22 Wi-Fi)	-
BMS	RS-485 Wi-Fi Ethernet MODBUS (RTU, TCP)	-
Vents Cloud Server	+	-
Control by a mobile application via Wi-Fi	+	-
Freeze protection	+	+
Bypass control	Auto + manual	Manual
Weekly schedule operation	+	-
Filter maintenance warning	According to filter timer	According to filter timer
Filter maintenance warning	According to pressure switch of filter clogging	According to filter timer
Alarm indication	+	+
Speed selection	+	+
Timer	+	-
RH% sensor	Option	Option
CO₂ sensor	Option	Option
VOC sensor	Option	Option
PM2.5 sensor	Option	Option
Boost mode	+	-
Fireplace mode	+	-
Preheating	Option	-
Reheating	Option	-
Cooler connection	Option	-
Fire alarm sensor connection	Option	Option
Supply air temperature control	+	-

Characteristics

Parameter	DVUT 1200 HBE EC	Measurement unit
Frequency	50/60	Hz
Phase	1	˜
Voltage	230	V
Max. unit current without electric heater	1.6	A
Max. unit current with electric heater	9.6	A
Air capacity	1240	m³/h
RPM	3630	min^-1
Preheater output	6300	W
Max. unit power without electric heater	350	W
Heat recovery efficiency	84...96	%
Transported air temperature	-25 ... +40	°С
Sound pressure level at 1 m distance	34	dBА
Sound pressure level at 3 m distance	24	dBА
Functions	Filter replacement indication, Timer, Weekly schedule, External sensor connection	-
Remote control panel	LCD, Sensor	-
Casing material	painted steel	-
Heating	electric preheating	-
Insulation	40 mm mineral wool	-
Filter: extract	G4	-
Filter: supply	G4 (F7*)	-
Weight	398	kg
Heat exchanger type	counter-flow	-
Heat exchanger material	polystyrene	-
SEC Class	A+	-
Duct	400	-
Mounting	floor mounting	-

Capacity diagram

Selection method:
Air flow:
Pressure:

Operating point

Air flow: --
Pressure: ---

Files archieve

Downloads

Dimensions

Characteristics

Parameter	Value	Measurement unit
∅D	397	mm
H	2106	mm
H1	2000	mm
H3	545	mm
H4	1110	mm
H5	70	mm
L	1900	mm
L2	265	mm
L1	1951	mm
L3	535	mm

Additional characteristics

Fresh air stream length

Point	Power [W]	Sound pressure level at 3 m (1m) [dBA]
1	350	24(34)
2	356	24(34)
3	358	23(33)
4	356	23(33)
5	127	20(30)
6	129	20(30)
7	129	19(29)
8	129	19(29)
9	50	15(25)
10	50	15(25)
11	50	15(25)
12	48	14(24)

Sound power level		Octave frequency bands [Hz]									LpA, 3 m dBA	LpA, 1 m dBA
	Hz	Tot.	63	125	250	500	1000	2000	4000	8000
LwA to environment at point 1	dBA	45	31	35	40	37	36	36	28	19	24	34
LwA to environment at point 5	dBA	40	29	33	36	31	32	29	24	16	20	30
LwA to environment at point 9	dBA	36	25	32	25	29	20	22	28	21	15	25

Designation key

Unit series	Rated air flow [m³/h]	Installation	Bypass	Electric heaters	Drain pump	Motor type	Control
DVUT – unit with plastic heat exchanger DVUE – unit with enthalpy heat exchanger	320; 580; 1240	H – floor-mounted with horizontal spigots	B – bypass damper	_ – no heater E – electric preheater E2 – electric preheater and reheater	_ – without drain pump DN – in-built drain pump	ЕС – synchronous motor with electronic control	А14 А21

Accessories

Name	Image	DVUT 300 HB EC A14	DVUT 300 HB EC A21	DVUT 500 HB EC A14	DVUT 500 HB EC A21	DVUT 1200 HB EC A21
Outer ventilation hood made of white coated steel		NB DVUT 300 HB white		NB DVUT 500 HB white		NB DVUT 1200 HB white
Outer ventilation hood made of brushed stainless steel		NB DVUT 300 HB chrome		NB DVUT 500 HB chrome		NB DVUT 1200 HB chrome
Outer ventilation grille made of aluminium		MVMA 200 bVn Al		MVMA 250 bVn Al		MVMA 400 bVn Al
G4 panel filter		SF 308x238x22 G4 PPI		SF 450x257x27 G4 PPI		SF 450x395x48 G4 PET
G4 panel filter		SF 265x213x48 G4		SF 318x290x22 G4		SF 540x450x48 G4
F7 panel filter		–		–		SF 540x450x48 F7
F8 panel filter		SF 384x273x60 F8		SF 318x290x60 F8		–
F8 panel carbon filter		SF 533x135x48 F8 C		SF 666x196x48 F8 C		–
HEPA panel filter		SF 533x135x60 H11		SF 666x196x60 H11		–
VOC sensor (0-10 V)		–	DPWQ30600	–	DPWQ30600	DPWQ30600
СО₂ sensor (0-10 V)		–	DPWQ40200	–	DPWQ40200	DPWQ40200
Humidity sensor (0-10 V)		–	DPWС11200	–	DPWС11200	DPWС11200
Humidity sensor (NO)		HR-S
Humidity sensor		HV2
Hydraulic U-trap		SG-32
Drain pump		DN-2