Technical data for VEX350T Top with counterflow heat exchanger

Technical data

Technical data, VEX350T

Unit data
Min. airflow	400 m³/h
Max. airflow	4,095 m³/h
Absorbed power	2.7 kW
Power supply	1 x 230 V + N + PE ~ 50 Hz
Max. phase current	13.5 A *

Weight
Operation-ready unit	530 kg
For transport into the location	245 kg**

Motor and motor control (MC) data
Motor type	EC motor
Motor class in accordance with IEC TS 60034-30-2	IE4 (Super Premium Efficiency)
Voltage input	1 x 230 V
Current overload protection	Built-in
Regulation	Variable via motor control (MC)
Control signal	With integrated control system: Modbus	For third-party control system: 0-10 V DC

* (power consumption is not sinusoidal)
** (excl. doors, heat exchanger and fan units)

Information requirements - ERP

Fan data
Max. total efficiency (A-D)	67,5 %
ECO measurement set-up (A-D)	A
Efficiency level requirements	62N (2015)
ECO efficiency level during optimal operating point	76.7N

Motor data (optimal operating point)
EC motor	VSD Integrated
Absorbed power	1,.34 kW
Airflow	3,807 m³/h
Total pressure	777 Pa
RPM during optimal operating point	2,400 RPM

Conditions:
- Density = 1.2 kg/m³
- Pressure ratio < 1.11
- other points in acc. with EC327/2011 (see product instructions)

Filter options:

Filtration of supply air:

Panel filter Dim.: 614 x 850 x 96 mm	Option: Prefiltration Dim.: 614 x 850 x 48 mm
Panel filter Coarce 65% (G4)	Panel filter Coarce 65% (G4)
Panel filter ePM10 65% (M5)	Panel filter ePM10 65% (M5)
Panel filter ePM1 55% (F7)	Panel filter ePM1 55% (F7)
Panel filter ePM1 80% (F9)

Filtration of extract air:

Panel filter
Dim.: 614 x 850 x 96 mm

Panel filter Coarce 65% (G4)

Panel filter ePM10 65% (M5)

Panel filter ePM1 55% (F7)

Panel filter ePM1 80% (F9)

Data for internal heating and cooling/heating coils

VEX350T

Internal heating and cooling/heating coils

Electric heating coil (HE)		Small	Large
Power rating	12.65 kW		22.76 kW
Min. airflow	594 m³/h (50 % heating) 1,770 m³/h (100 % heating)		594 m³/h (0-100 % heating)
Power supply	3 x 400 V + N + PE ~ 50 Hz		3 x 400 V + N + PE ~ 50 Hz
Max. phase current	18.3 A		32.9 A
Water heating coil (HW)		1 pipe row	2 pipe rows
Test pressure	900 kPa		900 kPa
Max. operating pressure	800 kPa		800 kPa
Face area	645 x 750 mm		645 x 750 mm
Number of pipe rows	1		2
Number of circuits	4		5
Connection dimension	28 mm		28 mm
Fin spacing	1.4 mm		2.0 mm
Weight (without fluid)	7.0 kg		9.6 kg
Water content	1.96 l		3.37 l
Cooling/heating coil (CW)		2 pipe rows	4 pipe rows
Test pressure	900 kPa		900 kPa
Max. operating pressure	800 kPa		800 kPa
Face area	645 x 750 mm		645 x 750 mm
Number of pipe rows	2		4
Number of circuits	8		22
Connection dimension	28 mm		28 mm
Fin spacing	2.0 mm		2.5 mm
Weight (without fluid)	9.7 kg		15.9 kg
Water content, fluid	3.25 l		6.02 l
Cooling/heating coil (DX)
Test pressure	4.500 kPa
Max. operating pressure	4.200 kPa
Face area	625 x 740 mm
Number of pipe rows 4	4
Number of circuits	16
Connection dimension	28 mm
Internal volume	2.8 l

A precise calculation of the heating coil is recommended, to be carried out with calculation program EXselect/EXselectPRO, available on www.exhausto.com

Temperature efficiency

Temperature efficiency, VEX350T

The temperature efficiency and, to a lesser extent, the SFP/SEL values for a specific air handling unit are closely connected to the heat exchanger itself and depend upon the manufacturer. As suppliers can change from time to time, small changes in the technical data can occur, which is why it is always recommended that you perform a calculation for the particular project using our calculation software, EXselectPRO.

Temperature efficiency VEX350T
The curve is intended as a guideline, and it is recommended that a calculation be performed using the calculation software EXselectPRO for the individual project.

	Efficiency with condensation: Extract air = 20°C/55 RH Outdoor air = -10°C/50 RH Balance between supply air/extract air = 1,0
	Efficiency without condensation with imbalance: Extract air = 25°C/28 RH Outdoor air = 5°C/50 RH Balance between supply air/extract air = 0,8
	Efficiency without condensation in acc. with EN308: Extract air = 25°C/28 RH Outdoor air = 5°C/50 RH Balance between supply air/extract air = 1,0