QUBe SQU
QUBe SQU

QUBe SQU

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QUBe SQU

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The QUBe SQU is a multi-discharge, double skinned fan unit incorporating the high performance backward curved Ziehl-Abegg RH-C impeller designed specifically for operation without a scroll. Supplied for straight through airflow with the outlet panel positioned directly opposite the inlet panel, but the outlet panel can be easily exchanged on-site to provide 90° airflow if required.

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FEATURES & BENEFITS

Learn more about individual features and benefits of our products.

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SPECIFICATION

The Qube range of centrifugal fans as manufactured by Elta Fans Ltd.

 Technical information

TECHNICAL INFORMATION

The technical information available to you from ELTA Fans is exhaustive - Choose from either sound, performance and electrical or dimensional data for each and every product
Accessories

ACCESSORIES

Elta supply a full range of accessories for each of their products.

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COMPARE

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DOWNLOADS

Get the full brochure, wiring diagrams and operation and maintenance instructions.
SPP Features and Benefits
 

Features & Benefits

Material strength

Self supporting corrosion-resistant extruded Aluminium section, assembled with shock resistant fibreglass reinforced Polyamide PA6 corners ideally suited for general ventilation applications.

Motor performance

Three phase multi-voltage IP55 TEFC motor, wound for either (Delta) 230V/3Ph/50Hz or (Star) 400V/3Ph/50Hz connection, which is mounted using a unique low loss X-frame internal mounting arrangement, improving performance, and reducing noise generation, suitable for speed control with the Eltadrive VSD range of frequency inverter controls.
Motors are pre-wired to an IP55 terminal box mounted on the side, for easy customer connection.

Quality Impeller Design

High efficiency backward curved impellers with non-overloading power characteristics.

Choice

Straight through airflow as supplied. Discharge position can be altered on site.

Quality assurance

All QUBe units are to be tested to ISO 5801:2007 (airside performance) and BS 848 Part 2: 1985 (sound performance).

Ease of installation

All models are designed for direct connection to standard diameter flexible or rigid circular ducting with 50mm long spigots for ease of connection. Each spigot has an integral E PDM (Ethylene Propylene), UV + Ozone stable and resistant rubber seal which has a U shaped profile.

Full accessory range

Flexible connectors, attenuators, Eltadrive VSD frequency inverter controls, Eltadrive VSD frequency inverters (1Ph and 3Ph supply).

SPP Specifications

Specification

The Qube range of centrifugal box fans as manufactured by Elta Fans Ltd. 46 Third Avenue, Pensnett Trading Estate, Kingswinford, West Midlands, DY6 7US, UK. Tel: +44 (0) 1384 275800 - If you need more information - Visit demandcontrolventilation.com. Or contact us.

Casing

Constructed from self supporting corrosion-resistant extruded Aluminium section, assembled with shock resistant fibreglass reinforced Polyamide PA6 corners, and 25mm thick Double skinned fully inter-changeable removable panels, manufactured from pre-galvanised steel, in-filled with a non flammable mineral wool, 60kg/m3, thereby minimising breakout noise.

Motors

Three phase multi-voltage IP55 TEFC Foot / Flange mounted IEC frame motors, wound for either (Delta) 230V/3Ph/50Hz or (Star) at 400V/3Ph/50Hz connection, suitable for speed control when used with the Eltadrive VSD range of frequency inverter controls.

Motors are pre-wired to an IP55 terminal box mounted on the side, for easy customer connection.

Impellers

A high efficiency backward curved welded steel impeller with a non-overloading power characteristic, finished with a powder coating to RAL 5002 for greater surface protection, and dynamically balanced to G2.5 / G6.3 according to ISO1940 part 1.

Quality Management

Units are to be designed and manufactured with procedures as defined in BS EN ISO 9001: 2008. All QUBe units are to be tested to ISO 5801:2007 (airside performance) and BS 848 Part 2: 1985 (sound performance).

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Technical Information

Dimensional Data

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Product CodeSpigot ∅˜AD

Weight kg

SQU1/4 315 500 60 38
SQU2/4 500 670 70 66
SQU3/4 560 820 70 99
SQU4/4 710 1020 85 165
SQU4/6 710 1020 85 178

All dimensions are expressed in mm.


Technical Data

THREE Phase - 380V-415V / 50Hz

 
Product CodeSpeed r/minAirflow SFPAirflow m³/s @ Static Pressure Pa.Overall Efficiency %FMEGMotor Electrical Data
0 100 200 250 300 350 400 450 500 550 600 700 800 900 FLC Amps (Δ) FLC Amps (Y) Output kW
SQU1/4-3 1450 m³/s 0.58 0.48 0.35 0.26 0.16

33.6

N50

1.4

0.8

0.25

W/(L/s)

0.32

0.45

0.74

1.00

1.31

SQU2/4-3

1420

m³/s

1.36

1.24

1.11

1.04

0.96

0.87

0.76

0.60

0.18

54.1

N66

2.5

1.4

0.55

W/(L/s)

0.31

0.42

0.53

0.59

0.66

0.74

0.84

1.01

-

SQU3/4-3

1460

m³/s

1.96

1.82

1.65

1.56

1.45

1.32

1.19

1.05

0.90

0.72

0.41

50.0

N60

4.5

2.6

1.1

W/(L/s)

0.39

0.49

0.60

0.66

0.73

0.81

0.90

1.01

1.13

1.30

1.86

SQU4/4-3

1450

m³/s

3.87

3.64

3.42

3.31

3.21

3.10

2.98

2.87

2.74

2.61

2.47

2.14

1.70

1.08

56.8

N62

11.3

7.5

3.0

W/(L/s)

0.49

0.61

0.71

0.77

0.82

0.87

0.93

0.98

1.04

1.11

1.18

1.25

1.34

1.45

SQU4/6-3

960

m³/s

3.01

2.86

2.67

2.55

2.42

2.25

2.04

1.77

1.38

67.2

N76

6.7

3.9

1.5

W/(L/s)

0.36

0.41

0.47

0.51

0.55

0.60

0.67

0.76

0.90

FLC (Δ) at 230V/3Ph/50Hz.
FLC (Y) at 400V/3Ph/50Hz.
Overall total efficiency, r/min and FMEG values are per ISO 12759 installation category D.
A variable speed drive (Eltadrive) must be installed with this fan.

Sound Data


Product Code Sound Power Level dBW @ Octave Band HzdBA @ 3m
63Hz 125Hz 250Hz 500Hz 1 k Hz 2 kHz 4 kHz 8 kHz
SQU1/4-3 Inlet 62 66 70 70 66 62 57 53 51
Outlet 64 68 72 72 68 64 59 55 53
Breakout 61 63 61 55 45 35 24 18 36
SQU2/4-3 Inlet 68 72 76 76 72 68 63 59 57
Outlet 70 74 78 78 74 70 65 61 59
Breakout 67 69 67 61 51 41 30 24 42
SQU3/4-3 Inlet 72 76 79 79 75 71 67 62 60
Outlet 74 78 81 81 77 73 69 64 62
Breakout 71 73 70 64 54 44 34 27 45
SQU4/4-3 Inlet 78 82 86 85 81 77 73 68 66
Outlet 80 84 88 87 83 79 75 70 68
Breakout 77 79 77 70 60 50 40 33 51
SQU4/6-3 Inlet 73 76 79 78 74 70 65 61 59
Outlet 75 78 81 80 76 72 67 63 61
Breakout 72 73 70 63 53 43 32 26 44

Tests and preparation of the sound data have been carried out in accordance with BS 848 Part 2:1985 at 50% peak pressure. The In-Duct Sound Power Level Spectra are in dB re-1pW.
The overall A-weighted sound pressure level is at a distance of 3m with spherical free-field propagation. It is expressed in dB re-20μPa and is presented for comparative purposes only.

Silencer Data

Product CodedBA AttenuationĈ†P (Pa) 1DEPdBA AttenuationĈ†P (Pa) 2DEP
1DENP 1DEP 2DENP 2DEP
SQU1/4 -10 -13 7 -17 -20 11
SQU2/4 -10 -13 7 -17 -20 11
SQU3/4 -10 -13 8 -16 -20 13
SQU4/4 -11 -15 12 -16 -23 20
SQU4/6 -11 -15 10 -16 -23 16

Wiring Data

THREE Phase - 380V-415V / 50Hz

Product CodeWiring Diagram No.
SQU1/4 152-611
SQU2/4 152-611
SQU3/4 152-611
SQU4/4 152-611
SQU4/6 152-611

Accessories

  • Inverter: IP20

    This rating means this unit has a protection level of two against solid-body ingress, and a protection level of zero against the ingress of water.

    Read more

  • Inverter: IP55

    This rating means this unit has a protection level of five against solid-body ingress, and a protection level of five against the ingress of water.

    Read more

  • Matching Flanges (061B)

    Provides easy connection to flexible connector or ducting

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  • Silencers (068-D**P)

    Pre-galvanised sheet steel with perforated steel lining

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  • DCV Sensors

    Demand Control Ventilation

    Read more
 

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