Heat recovery air handling unit VENTS VUT 230 V5 А3/A4

Description
Characteristics
Capacity diagram
Downloads
Dimensions
Additional technical data
Designation key
Accessories
Video

Description

DESCRIPTION
The air-handling units are the fully featured ventilation units with heat recovery for air filtration, fresh air supply and stale air extract. The extract air heat in the high-efficient plate heat exchanger is used for warming up of the supply air stream.	The units offer energy-efficient ventilation and heating solutions for cottages and flats and are compatible with round Ø 125 mm air ducts.
FILTER	CASING
Supply and extract air flows are purified through G4 panel filters. For extra supply air filtration a F8 filter is available as a specially ordered accessory.	The casing is made of 15-26 mm thick expanded polypropylene (EPP) sheets, possessing high heatand sound-insulating properties.
	FILTER
	Single-phase three-speed external rotor motors with centrifugal impellers and forward curved blades. The motors have overheating protection with automatic restart.
HEAT EXCHANGER
The VUT 230 V5 units are equipped with a counter-flow polystyrene heat exchanger. In the cold season the extract air heat is transferred to the supply air stream which reduces ventilation-generated 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 outside air heat is transferred to the exhaust air stream. This allows for a considerable reduction of the supply air temperature which, in its turn, reduces the air conditioning load.	The VUE 230 V5 units are equipped with a counter-flow heat exchanger with an enthalpy membrane at the core. 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 exhaust air stream through the enthalpy membrane. This enables considerable reduction of the supply air temperature and humidity which, in its turn, reduces the air conditioning load.
CONTROL AND AUTOMATION
The unit is equipped with integrated control system. It can be supplied either with the mechanical threespeed speed controller P3-1-300 or the sensor threespeed speed controller SP3-1, power cable with mains plug. The service side of the unit has a removable inspection door with hand screws to enable heat exchanger and filter cleaning and replacement. The control unit is located inside of the unit casing. The power cable and the ground cable are connected to the control unit via the cable glands on the side on the unit.
FREEZE PROTECTION	INSTALLATION
The freeze protection is realized by means of shutdown the supply fan as follows: in case of freezing danger communicated by the temperature sensor the supply fan is turned off to let the heat exchanger defrosting with the extract air heat. After freezing danger is no longer imminent, the unit reverts to the standard operation mode.	The units are designed for wall or floor mounting. The access for unit and filter maintenance is available on the right and left side.
UNIT DESIGN

APPLICATION OPTIONS

Characteristics

Parameter	VENTS VUT 230 V5 A3/A4	Measurement unit
Frequency	50/60	Hz
Phase	1	˜
Voltage	230	V
A	0.7	A
Maximum unit power	163	W
Sound pressure level at 3 m distance	35	dBА
Air capacity	230	m³/h
RPM	2720	min^-1
Maximum transported air temperature	-25…+50	°С
Heat recovery efficiency	87...98	%
Insulation	EPP 15…26 mm	-
Casing material	expanded polypropylene	-
Filter: extract	G4	-
Filter: supply	G4, F8	-
Connected air duct size	125	mm
Weight	13	kg
Heat exchanger type	counter-flow	-
Heat exchanger material	polystyrene	-
SEC Class	B	-

Capacity diagram

Selection method:
Air flow:
Pressure:

Operating point

Air flow: --
Pressure: ---

Files archieve

Downloads

Dimensions

Characteristics

Parameter	Value	Measurement unit
∅D	125	mm
B	590	mm
H	893	mm
L	316	mm

Additional technical data

Sound power level, A – weighted		Gen.	Octave-frequency band [Hz]								LpA, 3 m dBA	LpA, 3 m dBA
Sound power level, A – weighted		dBA	63	125	250	500	1000	2000	4000	8000
L_WA to supply inlet	dBA	82	65	63	65	80	74	74	68	64
L_WA to supply outlet	dBA	66	60	56	55	63	58	49	40	33
L_WA to exhaust inlet	dBA	82	64	67	71	81	77	79	75	67
L_WA to exhaust outlet	dBA	70	51	64	62	68	60	60	50	42
L_WA to environment	dBA	56	39	47	46	54	46	46	44	40	35	45

Calculation of air temperature downstream of the heat exchanger:

t = t_outd + k_hr * (t_extr - t_outd) / 100,

where
t_outd - outdoor air temperature [°C]
t_extr - extract air temperature [°C]
k_hr - heat exchanger efficiency (according to the diagram) [%]

Designation key

Series	Rated air flow [m3 /h]	Mounting features	Casing design	Control
VUT: ventilation with heat recovery VUE: ventilation with energy recovery	230	V: vertical	5: expanded polypropylene	А3: P3-1-300 speed controller А4: SP3-1 sensor speed controller

Accessories

Model	G4 panel supply filter	F8 panel supply filter	Hydraulic U-trap
Model
VUT 230 V5 А4	SF 264x182x18 G4	SF 264x182x18 F8	SH-32
VUE 230 V5 А4	SF 264x182x18 G4	SF 264x182x18 F8	-

Video