systemair DHS 450EV Centrifugal Roof Fan User Manual

: June 2, 2024
: systemair

Table of Contents

systemair DHS 450EV Centrifugal Roof Fan
Product Information
Product Usage Instructions
DHS 450EV
Technical parameters
Performance
Dimension
Wiring
Ecodesign
Accessories
Documents
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

systemair DHS 450EV Centrifugal Roof Fan

systemair-DHS-450EV-Centrifugal-Roof-Fan-product-image

Product Information

Specifications

Item Number: 246927
Variant: 230V 1~ 50Hz
Voltage (nominal): 230 V
Frequency: 50 Hz
Phases: 1~
Input Power: [Input power value]
Input Current: [Input current value]
Impeller Speed: [Impeller speed value]
Air Flow: [Air flow value]
Capacitance of Capacitor: [Capacitance value]
Temperature of Transported Air: [Temperature value]
Max Temperature of Transported Air (when speed controlled): [Max temperature value]
Protection/Classification:
- Enclosure Class, Motor: IP54 F
- Insulation Class: [Insulation class value]

Product Usage Instructions

Installation

Identify a suitable location on the roof for installation.
Ensure proper electrical connections following the provided wiring instructions.
Securely mount the fan ensuring stability and proper alignment.

Operation

Switch on the power supply to the fan.
Adjust fan speed as needed using the specified control voltage.
Regularly check and maintain the fan for optimal performance.

Maintenance

Clean the fan blades and housing regularly to prevent dust buildup.
Inspect the capacitor for any signs of damage and replace if necessary.
Lubricate any moving parts as per the maintenance schedule.

FAQ

Q: Can this fan be used for both residential and industrial purposes?
A: Yes, this fan is suitable for use in both residential and industrial settings due to its high performance and durability.
Q: What is the recommended maintenance schedule for this fan?
A: It is recommended to clean the fan every 3-6 months, check electrical connections annually, and lubricate moving parts every 6-12 months.
Q: How can I control the speed of the fan?
A: The fan speed can be controlled using the specified control voltage mentioned in the product specifications. Additional speed control accessories are also available for purchase.

DHS 450EV

Centrifugal roof fan, horizontal discharge

Item Number: 246927
Variant: 230V 1~ 50Hz
To protect the motors from overheating the sileo range motors up to size 311 are equipped with integrated thermal contacts with manual reset. From size 355 with external leads for connection to a motor protection device. The casing is made from aluminum and the base frame from galvanized steel. Suitable for coastal applications. The impellers of the sileo types are manufactured from high-performance composite material with highly efficient 3D fan blade profile technology.
DVS/DHS/DVSI sileo …DV / DS: 3~ with Y/D-connection for 2-speeds
DVS/DHS/DVSI sileo …E4 / E6 / EZ / EV: 1~ motor
The DVS/DHS/DVSI sileo is well suited for applications requiring high air volumes at medium pressure and very low noise levels. These models have 3D profiled impellers with backward curved blades and external rotor motors. All motors are speed controllable over the voltage. For speed controlling of the DVS/DHS/DVSI sileo roof fans with a frequency converter a type with all pole sine filter is needed! The motors are suspended on effective vibration dampers.
- Maintenance-free and reliable
- Extensive range of accessories
- Excellent sound level
- Integral thermal contacts
- Speed-controllable
- High efficiency
DVS sileo with vertical outlet
DHS sileo with horizontal outlet
DVSI sileo has a 50 mm mineral wool insulation for lower noise levels.

$systemair-DHS-450EV-Centrifugal-Roof-Fan-fig- $1$$

Technical parameters

Nominal data|
---|---
Voltage (nominal)| 230| V
Frequency| 50| Hz
Phases| 1~|
Input power| 765| W
Input current| 3.2| A
Impeller speed| 1,370| rpm
Air flow| max 1.629| m³/s
Capacitance of capacitor| 16| µF
Temperature of transported air| max 65| °C
Max temperature of transported air, when speed controlled| 65| °C

Protection/Classification
- Enclosure class, motor IP54
- Insulation class F
Data according to ErP
ErP ready ErP 2018
Dimensions and weights
Weight 32 kg
Others
Motor type AC

Performance

Performance curve $systemair-DHS-450EV-Centrifugal-Roof-Fan-fig- $1$$

Hydraulic data|
---|---
Required air flow| 3224.63 m³/h
Required static pressure| 409 Pa
Working air flow| 3225.09 m³/h
Working static pressure| 409 Pa
Air density| 1.204 kg/m³
Power| 761.2 W
Fan control – RPM| 1371 rpm
Current| 3.21 A
SFP| 0.850 kW/m³/s
Control voltage| 230.0 V
Supply voltage| 230 V
Sound power level| | 63| 125| 250| 500| 1k| 2k| 4k| 8k| Total
---|---|---|---|---|---|---|---|---|---|---
Inlet| dB(A)| 45| 57| 64| 69| 72| 70| 62| 54| 76
Outlet| dB(A)| 46| 58| 65| 70| 74| 71| 63| 55| 77

Accessories

Dimension

$systemair-DHS-450EV-Centrifugal-Roof-Fan-fig- $2$$

Wiring

U1	blue (L)
Z	brown
U2	black (N)
PE	green/yellow
TK	grey

Ecodesign

Product

Trade name Systemair
Product name DHS 450EV sileo

Ecodesign|
---|---
ErP compliance| 2018|
Unit category| NRVU|
Drive| External MSD or VSD|
Unit type| UVU|
Heat recovery type| None|
Temperature ratio (UVU)| Not applicable|
qv nom| 0.8958| m³/s
P nom| 0.761| kW
Ps nom| 409| Pa
Fan efficiency| 48| %
External Leakage| 0| %
Sound power level LWA| 77| dB(A)