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GEA Denco Close Control Climate control with the best in precision Where just being GEA Denco Close Control Climate control with the best in precision Where just being precise is not precise enough Air Treatment / GEA Denco Ltd. Lufttechnik / GEA Air Treatment Gmb. H

Close Control products 2 GEA Denco Close Control - 11/08 Air Treatment Close Control products 2 GEA Denco Close Control - 11/08 Air Treatment

Close Control Air Conditioning Product Range • • • Precise control of temperature & Close Control Air Conditioning Product Range • • • Precise control of temperature & humidity Modern design New Microprocessor controller Various air flow configurations and cooling media Extensive options list T-Range E-Range 9 capacities 20 capacities Heat Rejection Range Condensers Condensing Units Dry Coolers 3 GEA Denco Close Control - 11/08 3 – 84 k. W 22 – 120 k. W 7 – 75 k. W 4 – 38 k. W 32 – 75 k. W Air Treatment

Other GEA Denco Products A special range of products has been designed for specific Other GEA Denco Products A special range of products has been designed for specific sectors • IP-Range: Full function, fully packaged for in room telecom applications 9 – 36 k. W capacities • EP-Range: Externally packaged weatherproof telecoms units, 5 – 21 k. W capacities with a RP internal room mounting version available • TW-Range: Full function T Range fully weatherproof for external telecoms • HS-Range: High static, specifically for clean room applications 4 GEA Denco Close Control - 11/08 Air Treatment

Denco – Officecool The adaptable air conditioning system for the modern workplace • • Denco – Officecool The adaptable air conditioning system for the modern workplace • • • Ease of reconfiguration to new layouts Individual control for users Effective operation Quiet conditioned air delivery Raised floor void distribution for natural convection LECUs in full cooling mode LECUs in heating mode LECUs in recirculation mode 5 GEA Denco Close Control - 11/08 Air Treatment

Officecool 6 GEA Denco Close Control - 11/08 Air Treatment Officecool 6 GEA Denco Close Control - 11/08 Air Treatment

Officecool 7 GEA Denco Close Control - 11/08 Air Treatment Officecool 7 GEA Denco Close Control - 11/08 Air Treatment

Raised Access Floors As the Access Floor is a major part of the system, Raised Access Floors As the Access Floor is a major part of the system, it must form part of the design. The designers must ensure that • The access floor pedestals, structural stringers and panels integrate with the underfloor system’s Fan Tiles (LECUs). • The fire and air barriers under the floor meet requirements. • The sub-floor is sealed against air leakage. 8 GEA Denco Close Control - 11/08 Air Treatment

Zone Units Schematic airflow diagram Officecool Zone Units Officecool - Down flow, Top return Zone Units Schematic airflow diagram Officecool Zone Units Officecool - Down flow, Top return 9 GEA Denco Close Control - 11/08 Officecool - Down flow, Bottom return Air Treatment

Denco Zone Unit • • • Available in 6 models, 1, 2 & 3 Denco Zone Unit • • • Available in 6 models, 1, 2 & 3 fan modules Top return / Bottom discharge, Bottom return / Bottom discharge Chilled water or direct expansion cooling, air or water LPHW, heatpump or electric heating Proportional control humidification 10 k. W 655 20 k. W 655 1255 30 k. W 1847 Top return, Bottom discharge 10 GEA Denco Close Control - 11/08 Air Treatment

Fan Tiles ─ LECUS* Flexible Office LECU *local environmental control units 11 GEA Denco Fan Tiles ─ LECUS* Flexible Office LECU *local environmental control units 11 GEA Denco Close Control - 11/08 Air Treatment

Fan Tiles ─ LECUS* *local environmental control units 12 GEA Denco Close Control - Fan Tiles ─ LECUS* *local environmental control units 12 GEA Denco Close Control - 11/08 Air Treatment

Fan Tiles ─ LECUS* Top return, Bottom discharge *local environmental control units 13 GEA Fan Tiles ─ LECUS* Top return, Bottom discharge *local environmental control units 13 GEA Denco Close Control - 11/08 Air Treatment

Fan Tiles ─ LECUS* Bottom return, Bottom discharge *local environmental control units 14 GEA Fan Tiles ─ LECUS* Bottom return, Bottom discharge *local environmental control units 14 GEA Denco Close Control - 11/08 Air Treatment

Fan Tiles ─ LECUS* Open plan office layout Fresh air Micro climate Filter Exhaust Fan Tiles ─ LECUS* Open plan office layout Fresh air Micro climate Filter Exhaust air Cooling Heating Hum Conditioned air Raised floor LEC Drains Hum Water supply (optional) Electrical supply Cooling medium Heating water (optional) Zone Unit LEC Electrical supplies *local environmental control units 15 GEA Denco Close Control - 11/08 Air Treatment

Zone Units Section through Downflow Heavy duty plastic lined panels Large EC fan with Zone Units Section through Downflow Heavy duty plastic lined panels Large EC fan with flexible connection and antivibration mounts Cooling / heating coils Static regain plenum 16 GEA Denco Close Control - 11/08 Air Treatment

GEA Denco Zone Unit Inverter Driven Fans • All units fitted with state of GEA Denco Zone Unit Inverter Driven Fans • All units fitted with state of the art “Intelligent” • Inverter Driven fans which are up to 40% more efficient than standard direct driven fans Benefits • The fan software detects the power drawn by the fan and can relate this to the known fan speed. This gives a known point on the fan curve and so we are able to control the performance of the fan to suit our exact requirements. Control on constant air volume linked to return air temperature • maximum and minimum speed setting available via 0 -10 V signal 17 GEA Denco Close Control - 11/08 Air Treatment

Zone Units Zone Units "Idle" Operating Point 18 GEA Denco Close Control - 11/08 Air Treatment

Zone Units Zone Units "Boost" Operating Point 19 GEA Denco Close Control - 11/08 Air Treatment

Fan Tiles ─ LECUS* Section through fan tile Supply air 20 °C (20 C) Fan Tiles ─ LECUS* Section through fan tile Supply air 20 °C (20 C) (17 C) (14 °C min) Return air 23 C Return air 24 °C 21 Independent controller Heater (opt) Return air sensor Damper Floor void sensor *local environmental control units 20 GEA Denco Close Control - 11/08 Air Treatment

Zone Unit & LECU* noise levels Quiet Zone units typically sub - NR 38 Zone Unit & LECU* noise levels Quiet Zone units typically sub - NR 38 at 1 m in room LECU Fanspeed Air vol (m³/s) NR at 1 m 1 0. 084 18 2 0. 11 25 3 0. 14 31 4 0. 16 37 5 0. 21 45 *local environmental control units 21 GEA Denco Close Control - 11/08 Air Treatment

Features and Benefits • Flexibility IN DESIGN You don’t want the layout of your Features and Benefits • Flexibility IN DESIGN You don’t want the layout of your office to be determined by the layout of the existing air-conditioning system. • Flexibility IN USAGE You will save 70% when reconfiguring an office using an Office. Cool System, compared with a Ceiling Mounted 4 pipe fan coil system. 22 GEA Denco Close Control - 11/08 Air Treatment

Features and Benefits Typical Flexible Office layout 23 GEA Denco Close Control - 11/08 Features and Benefits Typical Flexible Office layout 23 GEA Denco Close Control - 11/08 Air Treatment

Features and Benefits Typical Flexible Office layout 24 GEA Denco Close Control - 11/08 Features and Benefits Typical Flexible Office layout 24 GEA Denco Close Control - 11/08 Air Treatment

Features and Benefits Typical Officecool CONTROL Options 1. Manual adjustment on LECU 2. Adjustment Features and Benefits Typical Officecool CONTROL Options 1. Manual adjustment on LECU 2. Adjustment from BMS or intranet 25 GEA Denco Close Control - 11/08 Air Treatment

GEA Denco – Compressed Air Dryers • 50 years experience • Range 25 – GEA Denco – Compressed Air Dryers • 50 years experience • Range 25 – 150 m³/min capacity • Newly developed MN Range • Wide portfolio of associated products 26 GEA Denco Close Control - 11/08 Air Treatment

Requirements 27 GEA Denco Close Control - 11/08 Air Treatment Requirements 27 GEA Denco Close Control - 11/08 Air Treatment

Requirements Equipment cooling • High internal loads 500 – 1500 W / m² • Requirements Equipment cooling • High internal loads 500 – 1500 W / m² • Sound level subordinated priority • 100% availability redundant units (standby) • Low fresh air rate low heat request < 5% / a • All-season operation • Small part loads 28 GEA Denco Close Control - 11/08 Air Treatment

Requirements Air requirements • Narrow tolerances +/- < 1 °C, +/- 5% RH • Requirements Air requirements • Narrow tolerances +/- < 1 °C, +/- 5% RH • Humidity control • high sensible cooling capacity • high leaving air temperature approx. 12 °C – 14 °C • large heat exchanger surfaces • High air volume flow • High quality air filter 29 GEA Denco Close Control - 11/08 Air Treatment

Unit assembly 30 GEA Denco Close Control - 11/08 Air Treatment Unit assembly 30 GEA Denco Close Control - 11/08 Air Treatment

Unit Assembly Standard shipment T/E-Line Controller Switch cabinet Filter Heat exchanger Electric heating Humidifier Unit Assembly Standard shipment T/E-Line Controller Switch cabinet Filter Heat exchanger Electric heating Humidifier Fan 31 GEA Denco Close Control - 11/08 Air Treatment

Unit Assembly T/E-Line • Cooling capacity of 3 – 90 k. W • Refrigerant Unit Assembly T/E-Line • Cooling capacity of 3 – 90 k. W • Refrigerant R 407 C standard • Optional R 410 A and R 134 a possible • System components in shipment • Condensor • Chiller • Condensing units • Comprehensive accessories • Different versions for duct connections • Hydraulic modules • Modified fans, compressors • Water detection 32 GEA Denco Close Control - 11/08 Air Treatment

Routing of Air Flow – Upflow intermediate ceiling server 33 GEA Denco Close Control Routing of Air Flow – Upflow intermediate ceiling server 33 GEA Denco Close Control - 11/08 Air Treatment

Routing of Air Flow – Upflow server 34 GEA Denco Close Control - 11/08 Routing of Air Flow – Upflow server 34 GEA Denco Close Control - 11/08 Air Treatment

Routing of Air Flow – Downflow 24 °C 45% RH Room condition at equipment Routing of Air Flow – Downflow 24 °C 45% RH Room condition at equipment height, breathing level or 2 m above floor server preferred min. void 300 mm 35 GEA Denco Close Control - 11/08 22 °C 50% RH 16 °C 70% RH intermediate raised floor Air Treatment

Energy Efficiency 36 With a low pressure plenum (5 -10 Pa) and efficient EC Energy Efficiency 36 With a low pressure plenum (5 -10 Pa) and efficient EC variable fan operation the system can around 20% more efficient than traditional VAV systems. Night time cooling can be used to achieve energy savings and reduced CO 2 emissions. GEA Denco Close Control - 11/08 Air Treatment

Fresh air free cooling version Front return grille Modulating damper Exhaust air out Ambient Fresh air free cooling version Front return grille Modulating damper Exhaust air out Ambient air in Zone unit Free cooling mode with ambients 2 °C below room set point 37 GEA Denco Close Control - 11/08 Damper modulates to provide required conditions Full recirculation with no free cooling at higher ambients Air Treatment

Unit variants 38 GEA Denco Close Control - 11/08 Air Treatment Unit variants 38 GEA Denco Close Control - 11/08 Air Treatment

Unit variants Classic version for containers Variants of series: • TW Range T wheather-proof Unit variants Classic version for containers Variants of series: • TW Range T wheather-proof • EP Range (externally package) low-budget-version server room 39 GEA Denco Close Control - 11/08 outside Air Treatment

Unit Variants Packaged indoor mounting Variants: • T IP Range (refrigeration circuit in unit) Unit Variants Packaged indoor mounting Variants: • T IP Range (refrigeration circuit in unit) • RP Range (room packaged) low-budget-version server room 40 GEA Denco Close Control - 11/08 outside Air Treatment

Unit Variants Reverse supply & return Variant: • T Range with optional Rear Air Unit Variants Reverse supply & return Variant: • T Range with optional Rear Air Return and Supply server room 41 GEA Denco Close Control - 11/08 indoor Air Treatment

Unit Variants Classic version for rooms without a floor void Variants of series: • Unit Variants Classic version for rooms without a floor void Variants of series: • T Range • E Range • HS Range (laboratory/clean rooms) server room 42 GEA Denco Close Control - 11/08 Air Treatment

Refrigeration versions 43 GEA Denco Close Control - 11/08 Air Treatment Refrigeration versions 43 GEA Denco Close Control - 11/08 Air Treatment

Cooling Versions Air-cooled A-version outside unit refrigerant-condenser precision air conditioner indoor mounted application range Cooling Versions Air-cooled A-version outside unit refrigerant-condenser precision air conditioner indoor mounted application range server room server refrigeration circuit refrigerant heat exchanger 44 GEA Denco Close Control - 11/08 Air Treatment

Cooling Versions Air-cooled X-version outside unit condenser unit precision air conditioner indoor mounted application Cooling Versions Air-cooled X-version outside unit condenser unit precision air conditioner indoor mounted application range server room server refrigerant refrigeration circuit 45 GEA Denco Close Control - 11/08 heat exchanger Air Treatment

Cooling Versions Chilled water C-version outside unit Chiller precision air conditioner indoor mounted application Cooling Versions Chilled water C-version outside unit Chiller precision air conditioner indoor mounted application range server room server chilled water refrigeration circuit 46 GEA Denco Close Control - 11/08 heat exchanger Air Treatment

Cooling Versions Watercooled W-version outdoor unit air-water-cooler precision air conditioner indoor mounted application range Cooling Versions Watercooled W-version outdoor unit air-water-cooler precision air conditioner indoor mounted application range server room server refrigeration circuit water heat exchanger 47 GEA Denco Close Control - 11/08 Air Treatment

Cooling Versions Energy Saving Ambicool F-Version outdoor unit air-water-cooler precision air conditioner indoor mounted Cooling Versions Energy Saving Ambicool F-Version outdoor unit air-water-cooler precision air conditioner indoor mounted application range server room refrigeration circuit summer server water winter (< +11 °C) 2 heat exchangers 48 GEA Denco Close Control - 11/08 Air Treatment

Cooling Versions Energy Saving Combicool D-version out door unit precision air conditioner indoor mounted Cooling Versions Energy Saving Combicool D-version out door unit precision air conditioner indoor mounted application range server room refrigeration by A, X, W, (C) -version server external chilled water 2 heat exchangers 49 GEA Denco Close Control - 11/08 Air Treatment

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