QUBe SQU-HT

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SQU-HT

4 physical sizes with 5 models from 315mm to 710mm.
Air volume flow rates of up to 3.9 m3/s.
Static pressures of up to 964 Pa.
Interchangeable double skinned panels.Suitable for operating temperatures up to +120°C.
Interchangeable double skinned.

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The QUBe SQU-HT 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. With motor out of the airstream it is suitable for more arduous and elevated temperature applications. The unit is supplied as either an end inlet vertical discharge unit (QUBe-HT) or as a side inlet vertical discharge unit (QUBe-HTs)*.

*Please specify at the time of ordering.

FEATURES & BENEFITS

Learn more about individual features and benefits of our products.

SPECIFICATION

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

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

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

COMPARE

Choose up to three products to compare their features side-by-side.

DOWNLOADS

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

Features & Benefits

Full accessory range

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

Material strength

Self supporting corrosion-resistant extruded Aluminium section, assembled with aluminium corners ideally suited for elevated temperature 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 out of the airstream, suitable for speed control with the Eltadrive VSD range of frequency inverter controls. Customer connection direct to the IP55 motor terminal box.

Quality Impeller Design

High efficiency backward curved welded steel impeller with a non-overloading power characteristic, suitable for continuous S1 operation up to 120°C, finished with a powder coating to RAL 5002 for greater surface protection.

Choice

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

Quality assurance

End inlet or side inlet with vertical discharge as supplied.

Ease of installation

An easily removable motor/impeller assembly arrangement, ideal for frequent cleaning or maintenance.

Specification

The Qube HT 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).

Technical Information

Dimensional Data

Product Code	End Inlet Spigot Ø	A	B	C	D	Side Inlet W x H	Outlet W x H	Weight kg
SQU1/4HT	315	500	195	30	60	221 x 440	203 x 440	44
SQU2/4HT	500	670	211	30	70	320 x 608	273 x 608	72
SQU3/4HT	560	820	255	40	70	420 x 740	304 x 740	106
SQU4/4HT	710	1020	292	40	85	550 x 940	373 x 940	173
SQU4/6HT	710	1020	292	40	85	550 x 940	373 x 940	186

All Dimensions expressed in mm.

Performance & Electrical Data

Product Code	Speed r/min	Airflow SFP	Airflow m³/s @ Static Pressure Pa.														Overall Efficiency %	FMEG	Motor Electrical Data
Product Code	Speed r/min	Airflow SFP	0	100	200	250	300	350	400	450	500	550	600	700	800	900	Overall Efficiency %	FMEG	FLC Amps (Δ)	FLC Amps (Y)	Output kW
SQU1/4-3HT	1450	m³/s	0.58	0.47	0.35	0.27	0.16										33.4	N50	1.4	0.8	0.25
SQU1/4-3HT	1450	W/(L/s)	0.32	0.46	0.76	1.01	1.32										33.4	N50	1.4	0.8	0.25
SQU2/4-3HT	1440	m³/s	1.36	1.24	1.11	1.04	0.96	0.87	0.76	0.59							54.2	N66	2.5	1.4	0.55
SQU2/4-3HT	1440	W/(L/s)	0.31	0.45	0.63	0.74	0.87	1.01	1.14	1.26							54.2	N66	2.5	1.4	0.55
SQU3/4-3HT	1470	m³/s	1.99	1.86	1.72	1.65	1.57	1.48	1.39	1.28	1.14	0.97	0.69				60.1	N70	4.5	2.6	1.1
SQU3/4-3HT	1470	W/(L/s)	0.38	0.48	0.59	0.66	0.74	0.82	0.91	1.01	1.11	1.23	1.44				60.1	N70	4.5	2.6	1.1
SQU4/4-3HT	1450	m³/s	3.88	3.72	3.55	3.46	3.37	3.28	3.18	3.08	2.98	2.86	2.74	2.46	2.08	1.45	64.8	N70	11.3	7.5	3.0
SQU4/4-3HT	1450	W/(L/s)	0.49	0.59	0.71	0.77	0.83	0.91	0.99	1.07	1.17	1.27	1.37	1.59	1.79	2.00	64.8	N70	11.3	7.5	3.0
SQU4/6-3HT	910	m³/s	3.01	2.86	2.67	2.55	2.41	2.24	2.03	1.76	1.37						66.9	N76	6.7	3.9	1.5
SQU4/6-3HT	910	W/(L/s)	0.39	0.46	0.55	0.61	0.69	0.77	0.86	0.95	1.04						66.9	N76	6.7	3.9	1.5

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 Hz								dBA @ 3m
Product Code		63Hz	125Hz	250Hz	500Hz	1 k Hz	2 kHz	4 kHz	8 kHz	dBA @ 3m
SQU1/4-3HT	Inlet	62	66	70	70	66	62	57	53	51
	Outlet	64	68	72	72	68	64	59	55	53
	Breakout	63	65	63	57	52	44	37	28	38
SQU2/4-3HT	Inlet	68	72	76	76	72	68	63	59	57
	Outlet	70	74	78	78	74	70	65	61	59
	Breakout	69	71	69	63	54	44	36	33	44
SQU3/4-3HT	Inlet	72	76	79	79	75	71	67	62	60
	Outlet	74	78	81	81	77	73	69	64	62
	Breakout	73	75	72	66	58	52	43	38	47
SQU4/4-3HT	Inlet	78	82	86	85	81	77	73	68	66
	Outlet	80	84	88	87	83	79	75	70	68
	Breakout	77	76	73	68	59	52	41	33	48
SQU4/6-3HT	Inlet	73	76	79	78	74	70	65	61	59
	Outlet	75	78	81	80	76	72	67	63	61
	Breakout	74	75	72	65	56	49	42	31	46

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.

Wiring Data

THREE Phase - 380V-415V / 50Hz

Product Code	Wiring Diagram No.
SQU1/4HT	152-600
SQU2/4HT	152-600
SQU3/4HT	152-600
SQU4/4HT	152-600
SQU4/6HT	152-600

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.
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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.
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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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Flexible Connectors (SLCS)

Fit to matching flanges to provide flexible connection
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DCV Sensors

Demand Control Ventilation
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