COOLflow 4E PRODUCT RANGE

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1 COOLflow 4E PRODUCT RANGE FREE AIR COOLING FROM THE FREE AIR SPECIALISTS GUARANTEED TO SIGNIFICANTLY REDUCE CARBON EMISSIONS & DELIVER ENERGY SPEND SAVINGS OF UP TO 95% The COOLflow 4E range has been developed over a decade to offer market leading free air cooling solutions. Versitile options means there is a product to suit almost any application, in terms of cooling capacity, power supply, and filtration, as well as internally or externally installation and mechanical cooling add on modules.

& PLUS PRINCIPLES OF OPERATION External fresh air is drawn in via COOLflow 4E generating a positive pressure within the space, thereby eliminating the potential for outside contaminants to

The temperature inside the cabin is generally 5-10 C higher than ambient due to the heat generating equipment inside, and this warmer air is exhausted through a passive gravity louvre

As the air passes through COOLflow 4E it is filtered by the COOLfilter 4E patented filter system, ensuring a clean and safe cabin environment. COOLfilter 4E 2.

Third party tested to BS EN 779:2012, this latest offering from 4energy builds upon a decade of filtration experience to offer the industries only F7 maintenance free filter.

2 & PLUS PRINCIPLES OF OPERATION External fresh air is drawn in via COOLflow 4E generating a positive pressure within the space, thereby eliminating the potential for outside contaminants to be drawn in without being filtered. The temperature inside the cabin is generally 5-10 C higher than ambient due to the heat generating equipment inside, and this warmer air is exhausted through a passive gravity louvre positioned at the opposite side of the equipment space. As the air passes through COOLflow 4E it is filtered by the COOLfilter 4E patented filter system, ensuring a clean and safe cabin environment. COOLfilter 4E 2.0 F7 MAINTENANCE FREE FILTRATION The next generation of COOLfilter 4E has been fully optimised to provide the ultimate in maintenance free filtration. Third party tested to BS EN 779:2012, this latest offering from 4energy builds upon a decade of filtration experience to offer the industries only F7 maintenance free filter. COOLING DONE QUIETLY Designed to be environmentally friendly, PLUS and Force remain quiet even under the most difficult of cooling requirements. PLUS TECHNICAL DETAILS Latest generation composite blade, 48V DC & 230V AC/EC fans Existing A/C units can be replaced & integrated with ease Robust, powder coated, zintec construction (AluZinc also available) F7 (BS EN 779:2012) maintenance free filtration Simple and effective design for quick and easy installation Fan MTBF > 50, 000 hours Finish/colour on demand Passive weather proof exhaust gravity damper

3 FULL PRODUCT RANGE SPECIFICATION UNIfilter 4E 48V DC Height 724 mm 962 mm Width 636 mm 636 mm Depth 630 mm 630 mm Weight 46 kg 65 kg Sound 5 metres (100% speed) 51.1 db(a) 47.8 db(a) Sound 3 metres (100% speed) 55.6 db(a) 52.3 db(a) Nominal current input (75% fan speed) 5.50 A 5.20 A Nominal power input (75% fan speed) 264 W 250 W Maximum airflow (@ 0Pa ESP) 3610 m 3 /hr 3610 m 3 /hr Maximum airflow (system) 2931 m 3 /hr 2800 m 3 /hr Standard filtration (BS EN 779:2012) G2 pre-filter with G4 or F7 panel filter Maintenance free F7 Cooling 10 C T 9.9 kw 9.5 kw Cooling 8 C T 7.9 kw 7.6 kw UNIfilter 4E 230V AC/EC Sound 5 metres (100% speed) 49.8 db(a) 46.0 db(a) Sound 3 metres (100% speed) 54.3 db(a) 50.5 db(a) Nominal current input (75% fan speed) 1.05 A 1.04 A Nominal power input (75% fan speed) 237 W 232 W Maximum airflow (@ 0Pa ESP) 3650m 3 /hr 3650m 3 /hr Maximum airflow (system) 2806 m 3 /hr 2878 m 3 /hr Standard filtration (BS EN 779:2012) G2 pre-filter with G4 or F7 panel filter Maintenance free F7 Cooling 10 C T 9.5 kw 9.7 kw Cooling 8 C T 7.6 kw 7.8 kw COOLfilter 4E 48V DC COOLfilter 4E 230V AC/EC PLUS FULL PRODUCT RANGE SPECIFICATION PLUS 48V DC Height 962 mm 962 mm Width 940mm 940 mm Depth 630 mm 630 mm Weight 118 kg 119 kg Sound 5 metres (100% speed) 50.1 db(a) 49.2 db(a) Sound 3 metres (100% speed) 54.5 db(a) 52.4 db(a) Nominal current input (75% fan speed) 13.1 A 2.4 A Nominal power input (75% fan speed) 629 W 575 W Maximum airflow (@ 0Pa ESP) 5600 m 3 /hr 5430 m 3 /hr Maximum airflow (system) 4230 m 3 /hr 4158M 3 /h Standard filtration (BS EN 779:2012) Maintenance free F7 Maintenance free F7 Cooling 10 C T 14.3 kw 14.0 kw Cooling 8 C T 11.4 kw 11.2 kw PLUS 230V AC/EC

4 Airflow (m 3 /hr) Competitor 1 Competitor 2 Competitor 3 Competitor 4 Competitor 5 Competitor 6 Maintenance Free COOLflow 4E Force COOLflow 4E Force PLUS MARKET LEADING PERFORMANCE and Force PLUS take full advantage of the latest advances in fan technology combined with intelligent enclosure design to provide market leading airflow, irrespective of the chosen filter variant. & PLUS DIMENSIONS COOLfilter UNIfilter PLUS COOLfilter

& PLUS FULL SYSTEM COOLflow Force PLUS Full System integrates energy efficient direct expansion (DX) backup cooling to the existing COOLflow Force PLUS fan and filter units.

TEMPERATURE SETPOINT External Temperature Internal Temperature (COOLflow Full system) TIME Internal Temperature (Free air only) PRINCIPLES OF OPERATION During normal free air operation, external

In recirculation mode, the actuated damper plate is rotated through 90 to allow air to be drawn into the COOLflow from the equipment room and through the evaporator coil.

SPECIFICATIONS / DIMENSIONS COOLflow Force full system physical properties Full system height/width/depth (COOLfilter/UNIfilter) Full system module height/width/depth Net weight

62kW 750/855/328mm 68kg Power consumption / SEER 2.56kW / 2.98 Refrigerant type / charge Power supply Sound pressure level at 3m R410A / 1.

2931m 3 /h 2878m 3 /h / 2806m 3 /h Noise level at 5 metres, fan speed 100% (COOLfilter/UNIfilter) 47.8dB(A) / 51.1dB(A) 46.0dB(A) / 49.

5 & PLUS FULL SYSTEM COOLflow Force PLUS Full System integrates energy efficient direct expansion (DX) backup cooling to the existing COOLflow Force PLUS fan and filter units. Through increasing the range of operating conditions, technical rooms and estates can be maintained at optimum operating conditions all year round. TEMPERATURE SETPOINT External Temperature Internal Temperature (COOLflow Full system) TIME Internal Temperature (Free air only) PRINCIPLES OF OPERATION During normal free air operation, external fresh air is drawn in through the COOLflow Force PLUS via weather louvres on the front of the Full System module. In recirculation mode, the actuated damper plate is rotated through 90 to allow air to be drawn into the COOLflow from the equipment room and through the evaporator coil. As no positive pressure is created in the space the gravity louvre exhausts remain closed stopping any contaminants from being drawn in. SPECIFICATIONS / DIMENSIONS COOLflow Force full system physical properties Full system height/width/depth (COOLfilter/UNIfilter) Full system module height/width/depth Net weight (COOLfilter/UNIfilter) Outdoor condensing unit properties Cooling capacity Height/width/depth Net weight 1597/636/630mm / 1359/636/630mm 635/704/625mm 103kg / 84kg 7.62kW 750/855/328mm 68kg Power consumption / SEER 2.56kW / 2.98 Refrigerant type / charge Power supply Sound pressure level at 3m R410A / 1.75kg 230V AC (1-phase / 50Hz) 54dB(A) Operating parameters of the fan 48V DC 230V AC/EC Fan type 315mm backward curved centrifugal Maximum airflow in free air mode (COOLfilter/UNIfilter) 2800m 3 /h / 2931m 3 /h 2878m 3 /h / 2806m 3 /h Noise level at 5 metres, fan speed 100% (COOLfilter/UNIfilter) 47.8dB(A) / 51.1dB(A) 46.0dB(A) / 49.8dB(A) Noise level at 3 metres, fan speed 100% (COOLfilter/UNIfilter) 52.3dB(A) / 55.6dB(A) 50.5dB(A) / 54.3dB(A) Cooling efficiency and capacity Cooling capacity (free-cooling ΔT of 10 C) (COOLfilter/UNIfilter) 9.5kW / 9.9kW 9.7kW / 9.5kW Cooling capacity (free-cooling ΔT of 8 C) (COOLfilter/UNIfilter) 7.6kW / 7.9kW 7.8kW / 7.6kW Cooling capacity (mechanical 27 C DB/19 C WB indoor, 35 C DB/24 C WB outdoor) 7.62kW 1597/1006/630mm 635/1006/625mm 150kg kW (Variable capacity DC inverter) 890/900/320mm 68kg 3.11kW / 3.22 R410A / 2.8kg 230V AC (1-phase) 53dB(A) 48V DC 230V AC/EC 315mm backward curved centrifugal 4230m 3 /h 4158m 3 /h 50.1dB(A) 49.2dB(A) 54.5dB(A) 52.4dB(A) 14.3kW 14kW 11.4kW 11.2kW kW

VERSATILE FILTER OPTIONS COOLflow 4E Compact utilises standard size panel filters which provides flexibility and ensures equipment rooms are filtered to the required specification.

SUPERB EFFICIENCY COOLflow 4E Compact provides high airflow, energy efficient freecooling through a combination of sound mechanical design and rigorous testing.

COOLflow 4E Compact FULL PRODUCT RANGE SPECIFICATION/ DIMENSIONS Height Width Depth Weight Sound pressure @ 5 metres (100% speed) Sound pressure @ 3 metres (100% speed) Nominal current input (75% fan

6 VERSATILE FILTER OPTIONS COOLflow 4E Compact utilises standard size panel filters which provides flexibility and ensures equipment rooms are filtered to the required specification. COOLflow 4E Compact is supplied as standard with a high capacity pleated panel filter with G4 (BS EN 779:2012) grade filtration. SUPERB EFFICIENCY COOLflow 4E Compact provides high airflow, energy efficient freecooling through a combination of sound mechanical design and rigorous testing. Using the latest generation of speed controlled DC fans, COOLflow 4E Compact provides class leading energy efficiency, delivering exceptional savings to the customer. COOLflow 4E Compact FULL PRODUCT RANGE SPECIFICATION/ DIMENSIONS Height Width Depth Weight Sound 5 metres (100% speed) Sound 3 metres (100% speed) Nominal current input (75% fan speed) Nominal power input (75% fan speed) Maximum airflow (@ 0Pa ESP) Maximum airflow (system) Standard filtration (BS EN 779:2012) Cooling 10 C T Cooling 8 C T * Testing carried out with a G4 pleated panel filter, other filter options may see a variance in airflow, power and noise values. Please contact us for detailed information. 505 mm 499mm mm 28 kg 50.5 db(a) 54.9 db(a) 2.9 A W 2407 m 3 /hr 2180 m 3 /hr COOLflow 4E Compact 48V DC G4 (options available to suit customer requirements) 7.4 kw 5.9 kw

COOLflow 4E COMPACT High capacity panel filter with multiple filtration options Robust, powder-coated corrosion resistant construction Quick and easy installation IP 54,

COOLflow 4E Compact generating a positive pressure within the space, thereby eliminating the potential for outside contaminants to be drawn in without being filtered.

than ambient due to the heat generating equipment inside, and this warmer air is exhausted through a passive gravity louvre positioned at the opposite side of the

SAVINGS FOCUSED COOLflow 4E Compact offers an effective and long-lasting product for a low up-front investment.

Existing A/C (EER - 3) COOLflow 4E Compact (Cooling capacity @ 10 C T) COOLflow 4E Compact SMALL BUT POWERFUL COOLflow 4E Compact has been developed to offer a high

Ideal for all sizes of equipment rooms and base stations, COOLflow 4E Compact can be easily deployed in single or multiple configurations to achieve optimum air

7 COOLflow 4E COMPACT High capacity panel filter with multiple filtration options Robust, powder-coated corrosion resistant construction Quick and easy installation IP 54, weather proof access panel with protection grill High efficiency DC, backward curved centrifugal fan PRINCIPLES OF OPERATION External fresh air is drawn in through COOLflow 4E Compact generating a positive pressure within the space, thereby eliminating the potential for outside contaminants to be drawn in without being filtered. Safety grill on entry and exit of fan compartment Differential pressure switch linked to filter change alert The temperature inside the cabin is generally 5-10 C higher than ambient due to the heat generating equipment inside, and this warmer air is exhausted through a passive gravity louvre positioned at the opposite side of the equipment space. As the air passes through COOLflow 4E Compact it is filtered by a high capacity panel filter, ensuring a clean and safe cabin environment. SAVINGS FOCUSED COOLflow 4E Compact offers an effective and long-lasting product for a low up-front investment. Comparing COOLflow 4E Compact with a traditional fixed speed, split air-conditioning system, clearly illustrates the incredible energy saving capabilities. Existing A/C (EER - 3) COOLflow 4E Compact (Cooling 10 C T) COOLflow 4E Compact SMALL BUT POWERFUL COOLflow 4E Compact has been developed to offer a high performance product in a small and compact footprint. Ideal for all sizes of equipment rooms and base stations, COOLflow 4E Compact can be easily deployed in single or multiple configurations to achieve optimum air distribution and cooling. TECHNICAL DETAILS Latest generation, efficient 48V DC fans Robust, powder coated, zintec construction (AluZinc also available) Fan MTBF > 50, 000 hours Finish/colour on demand Simple and effective design for quick and easy installation (BS EN 779:2012) flexible filtration options, G4 level filtration as standard Existing A/C units can be replaced & integrated with ease

8 4energy Ltd, No.1 Nottingham Science Park, University Boulevard, Nottingham NG7 2RU +44(0) energy Ltd 2016 EGYPT - CAIRO 4energy Ltd 18 Mostafa Refaat St. Sheraton Buildings Cairo Egypt GERMANY WUPPERTAL 4energy Deutschland GmbH Gabelsbergerstr. 16 D Wuppertal Germany Innovation is what makes us different, all the information contained in this document can be subject to change.

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