Technical System Catalogue Climate Control
3 2 4 1 Order information Catalogue 33, from page 393 Cooling with ambient air Even in apparently non-critical ambient conditions, for exam- Reliability and efficiency with air/air heat exchangers: ple when there is an adequate supply of clean, cool air, it is Thanks to separate air circuits (external/internal), dust and still worthwhile to provide climate control.
Cooling with ambient air 1 TopTherm fan-and-filter units Fan-and-filter units are ideal for dissipating heat loads cost-effectively. The prerequisite is that the ambient air must be relatively clean with a temperature below the desired enclosure internal temperature. EMC variants of the entire range of fan-and-filter units are also available. 2 Rack-mounted fans/ tangential fans Rack-mounted climate control components are fitted directly onto the 482.6 mm (19˝) mounting level.
TopTherm fan-and-filter units Project planning Page 6 Therm 6.
TopTherm fan-and-filter units Toolless assembly Straightforward assembly, maintenance and replacement with no need for tools of any kind Simple reversal of the air flow direction by rotating the fan module The electrical connection is individually positionable using a screwless spring terminal; no tools required Latch on louvred grille for fast filter mat replacement without tools Efficient technology Air throughput from 20 to 900 m³/h New diagonal fan technology for greater pressure stability
TopTherm fan-and-filter units Calculation basis for enclosure climate control In natural convection, heat loss is dissipated to the outside via the enclosure panels. The prerequisite for this is that the ambient temperature must be lower than the temperature inside the enclosure. The maximum temperature increase (ΔT)max. which may occur inside an enclosure compared with the ambient air is calculated as follows: . Qv (ΔT)max. = k A . Qv = Heat loss installed in the enclosure [W] .
TopTherm fan-and-filter units Project planning The following applies when calculating the volumetric air flow: . . Qv V=f ΔT Selection diagram 3000 2500 2000 Performance diagram SK 3243. . . . [50 Hz] SK 3243.XXX with standard filter 1500 SK 3243.XXX with standard and fine filter 1000 200 300 . V 400 500 600 2 x outlet filters SK 3243.200 . T 10 Δ K T 15 K 20 K K Δ T 40 T K 25 Δ 30 T Δ T 300 5K 100 400 T 0 1 x outlet filter SK 3243.
Rack-mounted fans/tangential fans Therm 6.1 software Page 84 Order information Catalogue 33, from page 399 Benefits at a glance: Rapid installation on 482.6 mm (19˝) mounting levels. Direct, effective dissipation of heat loss, thanks to posi- No externally mounted equipment to disrupt the aesthetic appearance of the enclosure. tioning beneath the assemblies. All rack-mounted climate control components are fitted directly onto the 482.6 mm (19˝) mounting level for subracks.
Rack-mounted fans/ tangential fans Rack-mounted fans The rack-mounted fan slides into the guide frame like a drawer. Connectors on the rear ensure immediate contact. Installation options for the guide frame: Directly in the subrack, via two mounting brackets on the 482.6 mm (19˝) mounting angles. Ideal for avoiding hot-spots in fully populated enclosures. Also available with speed monitoring of the fans. A reduction in air flow or fan failure being signalled via two floating contacts.
Fan systems Project planning Page 13 Order information Catalogue 33, from page 401 Benefits at a glance: Fast assembly Perfect system integration Targeted air routing to avoid hot-spots Fully wired modules, ready to install Ready-to-use, wired modules equipped with fans for numer- Choose from: ous Rittal enclosure system platforms offer effective air Fan roofs throughput and minimal assembly work.
Fan systems Fan for integration into the door Fan cross-member for server enclosures TS 8 Especially for installation in perforated doors. The growing packaging density in data communications and network enclosures make active, direct ventilation of the enclosure indispensable. The door-mounted fans, attached to the rear or front door, support horizontal air routing of the servers.
4 Air/air heat exchangers Project planning Page 13 Therm 6.1 software Page 85 Order information Catalogue 33, from page 408 Benefits at a glance: Important Specific thermal output from 17.5 W/K to 90 W/K The temperature difference between the room temperature External and internal circuit may be controlled separately and enclosure internal temperature will have a decisive effect Mounting cut-outs and enclosure dimensions identical on the heat loss that may be dissipated.
Air/air heat exchangers Safety High protection category Thanks to the seamlessly sealed heat exchanger module, a protection category of IP 54 to EN 60 529 is achieved. High load capacity The motors of the fans are equipped with thermal winding protection. Top quality: Guaranteed protection for your electronics. All devices in the Rittal TopTherm series are tested in accordance with the internationally recognised approvals (GS, UL). Intelligent control Specific thermal output from 17.
Air/air heat exchangers Project planning Calculate the specific thermal output of the heat exchanger: . QV – (A ΔT k) qw = ΔT Selection diagram 25 20 15 10 5 0 12 30 10 8 ΔT A 6 4 40 2 50 0 60 70 3000 ΔT . Qv qw A k = = = = = 2000 . QV 1000 0 10 20 30 40 50 60 70 80 qw Temperature difference (K) Heat loss (W) Specific thermal output (W/K) Enclosure surface area to IEC 890 (m2) Heat transfer coefficient (W/m2K) for sheet steel k = 5.
Air/air heat exchangers External circuit Flow and siting conditions Air/air heat exchangers in the external circuit should have a distance of at least 200 mm from a wall and from one another (air inlet and outlet openings). If this distance cannot be met, air baffle plates should be used. Siting options Wall-mounted heat exchangers may be mounted on the rear panel, side panels or door of the enclosure.
3 1 4 2 Order information Catalogue 33, from page 413 Cooling units Cooling units keep the temperature of the air inside an The new “Blue e” range of energy-saving cooling units from enclosure at a constant level, even at below room tem- Rittal – with outputs ranging from 500 W to 4000 W – achieve perature. Two separate air circuits prevent the ingress of permanent energy savings of up to 45%, compared to con- dust or other contaminents into the enclosure.
1 Thermoelectric coolers The powerful, lightweight climate control units based on Peltier technology ensure efficient climate control of operating housings and small enclosures. 2 Wall-mounted cooling units Standard features such as electric condensate evaporation and nano-coating of the condenser coil fins ensure a constant cooling output and easier maintenance. Depending on the space and design requirements, internal mounting, partial internal mounting and external mounting are all possible.
Cooling units Project planning Calculate your required cooling output: . . QE = QV – k A ΔT Condensation and dehumidification of enclosure air when using cooling units One unavoidable side-effect of using cooling units is the dehumidification of the enclosure’s interior air. As it cools down, part of the humidity contained in the air condenses on the evaporator coil. This condensate must be reliably discharged from the enclosure.
Cooling units Selection criteria Enclosure climate control places ever greater demands on integration and adaptation to the local conditions and the existing process control and monitoring system. Rittal offers the right solution to suit every requirement. When selecting the appropriate cooling unit for your enclosure, please observe the following points: What is the installation type to IEC 890? (see page 5, calculation bases) What ambient conditions are anticipated (max.
Cooling units Application ranges of enclosure cooling units Heat loss to be dissipated in kW ΔT = 10 K Ambient temperature in °C < 1.5 > 1.
Cooling units Cool Efficiency “Blue e” Super-efficient, eco-friendly, cost-cutting – that’s energy efficiency from Rittal. The efficient use of available resources is one of the main aims when developing new cooling systems, particularly in view of the escalating global climate and environmental problems, coupled with ever-rising energy prices.
Cooling units External circuit – Flow and siting conditions In the outer circuit, enclosure cooling units should be spaced > 200 mm from the wall and/or from each other (air inlet and outlet openings). In order to ensure adequate air circulation, at least one air outlet opening must be kept free. If this clearance cannot be maintained, air baffle plates will need to be used.
Cooling units Free air circulation 200 It is important to ensure “even” air circulation inside the enclosure. Air inlet and outlet openings in the internal circuit must on no account be obstructed by electrical installations. This would prevent air from circulating inside the enclosure. Under such conditions, the cooling capacity of the device would not be adequately utilised. A clearance of > 200 mm must be guaranteed.
Cooling units Intelligent control The two controller variants for operational reliability offer a comprehensive range of functions. Essential control electronics are well protected and cooled in the inner circuit.
Thermoelectric coolers Software & Service Page 26 Order information Catalogue 33, page 414 Benefits at a glance: Cooling and heating output 100 W, with state-of-the-art Peltier technology. Low-maintenance thanks to an elementary unit layout. High operating ratio (COP >1) thanks to optimum interplay between all components. USB interface for unit programming. Minimal physical size and mass compared with other systems in this sector. Large voltage range from 100 – 230 V (AC) and 24 V (DC).
Thermoelectric coolers Assembly Installation When installed in the enclosure, the unit only protrudes by a few millimetres, and therefore does not interrupt either the aesthetic appearance or freedom of movement on command panels and support arm systems. External mounting Its low weight also allows it to be externally mounted on simple aluminium rear panels or blanking panels. Flexibility May be mounted either horizontally or vertically.
“Blue e” cooling units 35 °C 1 25 °C 4 2 3 10 min. 10 min. 30 sec.
Up to 70% less energy consumption The potential for innovations in enclosure cooling units is far from exhausted. There is still significant scope for boosting efficiency, as verified by a pilot application at Daimler AG in Sindelfingen. The automotive manufacturer, one of the world’s leading suppliers of premium cars, put the new energy-saving cooling units from Rittal’s “Blue e” generation through an exhaustive battery of live tests.
Wall-mounted cooling units Project planning Page 17 Therm 6.
Wall-mounted cooling units Flexibility of wall mounting Practical and stylish The mounting cut-out is chosen depending on the mounting variant – either external, internal or partial internal mounting. This makes optimum use of the available space. With external mounting, openings are only required for air inlet and outlet. The enclosure surface containing the cut-out for partial or full internal mounting is stabilised by the divided internal case construction.
Wall-mounted cooling units Condensate evaporation, electrical Integrated into TopTherm cooling units Condensate arising inside the enclosure or on the evaporator coil of the cooling unit is effectively evaporated. The integral evaporator device of the cooling units has a very high evaporation output (several litres per day). This is achieved thanks to the principle of direct evaporation. Important note: The enclosure must be sealed on all sides (minimum IP 54).
Roof-mounted cooling units Project planning Page 17 Therm 6.1 software Page 85 Order information Catalogue 33, from page 426 Benefits at a glance: Please note: Super-efficient performance and energy consumption Avoid overloading the roof plate by using stays Wide output range from 500 W to 4000 W (with TS 8 system accessories, Catalogue 33, page 649).
Flexibility of roof mounting Cut your costs All three-phase cooling units are suitable for a voltage range of 400/460 V and a frequency range of 50/60 Hz without rewiring. No need for expensive additional transformers. Flexible performance Just 3 mounting cut-outs for 6 different output categories provide investment security and facilitate easy adaptation of the cooling output to the ambient conditions and the installed heat loss.
Roof-mounted cooling units Condensate routing 1 2 Any condensation which forms on the evaporator coil (with high humidity and low enclosure interior temperatures) is routed to the right and/or downwards out of the device via a drain in the evaporator tray. For this purpose, a piece of hose should be connected to one of the two condensate nozzles (1 or 2). The drain which is not required should be tightly sealed. The condensate must be able to run off freely.
Climate control checklist Enclosure commissioning checklist 1. Climate control calculation performed. 2. End client’s siting conditions taken into account (temperature, air quality, water quality). 3. The heat loss of the components installed in the enclosure does not exceed the specific cooling output of the cooling unit. 4. Ventilation space above and below the components taken into account as per the manufacturer’s requirements. 5.
Modular climate control concept Project planning Page 17 Therm 6.
Modular climate control concept Modularity Create your individual climate control solution from the section door and the climate control module in just a few simple steps. Choose from 48 different options with different dimensions, cooling outputs and voltages. Infinite possibilities Seamless baying and perfect integration. Cooling of a bayed enclosure suite is easily achieved, even under awkward room conditions, such as low ceiling heights. No mounting cut-outs are required.
2 1 3 Order information Catalogue 33, from page 433 Liquid cooling Whenever a higher enclosure protection category is needed Rittal chillers provide volumetric flows and cooling medium due to hot, dust-laden (e.g. metal dust) or oily ambient con- temperatures at precisely the required level. Rittal system ditions, Rittal liquid cooling concepts come into their own.
Liquid cooling 1 Air/water heat exchanger Liquid cooling classics The temperature of the air inside the enclosure interior may also be cooled to a level below that of the external air by using air/water heat exchangers in conjunction with a central recooling system. Dust is unable to penetrate the enclosure. The waste heat from the enclosure does not raise the temperature of the ambient air, provided the cold water supply system is remotely located.
Air/water heat exchanger Project planning Page 43 Therm 6.1 software Page 85 Order information Catalogue 33, from page 434 Benefits at a glance: Please note: Useful cooling output from 300 W to 7000 W Air/water heat exchangers should always be used in con- Suitable for use even under extreme conditions and junction with recooling systems or an existing cooling water ambient temperatures of up to +70 °C circuit.
Air/water heat exchanger Variants Roof mounting Especially for bayed enclosures, where wall-mounted devices would obstruct the door. Wall mounting For mounting on the wall or any sufficiently large vertical surface. More effective cooling thanks to selective air routing An important feature of TopTherm roof-mounted units: The air cooled by the heat exchanger is routed precisely to the relevant assembly via the air duct system, see Catalogue 33, page 473.
Air/water heat exchanger 35 °C 1 25 °C 4 2 3 10 min. 10 min. 30 sec. Temperature Energy input Cooling units Page 15 Air/air heat exchangers Page 11 Effective and efficient Eco-mode control Easier assembly: Intelligent, targeted use of energy thanks to the new eco-mode control from Rittal Assembled in less than 2 minutes Extensive choice of water connection options All units with Comfort control become efficient energysaving variants with eco-mode control.
Air/water heat exchanger Cost cutting Cost reduction through variable cooling outputs and technology in conjunction with simple installation Fast mounting and installation thanks to a system platform with identical mounting cut-outs for cooling units, air/air and air/water heat exchangers. Roof plates with the same prepared mounting cut-outs as for roof-mounted cooling units from our range of accessories. Clear benefits in terms of investment, installation and operating costs.
Air/water heat exchanger Project planning Calculate your required cooling output: e. g. Performance diagram Air/water heat exchanger 1000 W 50 Hz SK 3373.100, .110, .140, .500, .510, .540 Water resistance performance diagram SK 3373.100, .110, .140, .500, .510, .540 600 V = 400 l/h V = 200 l/h 3200 500 2800 400 2400 .
Air/water heat exchanger Free air circulation 200 It is important to ensure “even” air circulation inside the enclosure. Air inlet and outlet openings in the internal circuit must on no account be obstructed by electrical installations. This would prevent air from circulating inside the enclosure. Under such conditions, the cooling capacity of the device would not be adequately utilised. A clearance of > 200 mm must be guaranteed.
Air/water heat exchanger Condensate routing (roof-mounted units) 1 2 y Any condensation which forms on the evaporator coil (with high humidity and low enclosure interior temperatures) is routed to the right and/or downwards out of the device via a drain in the evaporator tray. For this purpose, a piece of hose should be connected to one of the two condensate nozzles (1 or 2). The drain which is not required should be tightly sealed. The condensate must be able to run off freely.
Air/water heat exchanger Intelligent control The two controller variants for operational reliability offer a comprehensive range of functions. Essential control electronics are well protected and cooled in the inner circuit.
Cold Plate Order information Catalogue 33, page 444 Benefits at a glance: High surface quality (Ra = 1.
Cold Plate Assembly Height and depth-variable mounting positions are offered by the system punchings of the TS 8 profiles in conjunction with punched section with mounting flange 17 x 73 mm (for the outer mounting level). Medium connections on the sides provide a larger plate capacity, and allow easier draining. Attachment directly in the T-slot Direct and fast mounting using sliding nuts for components with suitable dimensions.
Chillers for water Project planning Page 51 Therm 6.
Chillers for water Floor-standing and roof-mounted version TopTherm output range 1 kW – 6 kW TopTherm chillers in a floor-standing enclosure are used to facilitate the precise temperature control of water mixed with an additive. The water system, which is configured as an open system, has an integral buffer tank into which warm water returns before being cooled again to the preset temperature.
Chillers for water Project planning Chillers may be used in all situations where a high cooling load is required, e.g. in process and machine cooling, in media cooling or when dissipating heat loss from enclosures via air/water heat exchangers. Our project engineers will be happy to help you design a chiller for your specific application area. An overview of the planning data required for this purpose can also be found on the Internet at www.rittal.com.
Chillers – General instructions Assembly and commissioning When siting the chillers, the following points should be observed: Connection of an inlet and outlet duct requires the manufacturer’s prior consent. − Performance loss (air-cooled chillers) Never site the chiller in the vicinity of a heater. − Performance loss. The chiller may only be sited on flat, solid surfaces. The maximum permissible deviation from the vertical is 2°.
Chiller for water – TopTherm Floor-standing and roof-mounted Therm 6.
Chillers for water – Floorstanding and roof-mounted Compact design Cut your costs Preassembled, space-saving standard dimensions for enclosure assembly, ideally suited to all common enclosures Compact layout of the cooling components on a base plate which functions as a collecting tray High Mean Time Between Failures (MTBF) RiNano coating as standard (on all heat exchanger membranes) Interactive, service-friendly filter mat monitoring for added reliability Precise temperature control, based on
Chillers for water – TopTherm wall-mounted Therm 6.
Chillers for water – Wall-mounted Flexible external mounting Three external mounting options provide flexibility – the same unit may be mounted fully internally, partially internally or externally.
Chillers for water – Modular design Therm 6.
Chillers for water – Modular design Control module One version for two frequencies 400 V/50 Hz, 460 V/60 Hz Temperature control using fixed or differential values, switchable Chiller module Various air inlet options enable the chiller to be specifically tailored to cater for any site restrictions. Air inlet may be from the rear (size 8, 12 and 16 kW), or optionally from the left or right.
Chiller for water – Modular design Comparative calculation of energy costs Here, we compare the energy costs of cooling a bayed enclosure suite (heat loss 25 kW). Cooling units versus air/water heat exchangers combined with chillers. Qty. Power consumption kW per unit Price kWh Euro Energy costs Euro Cooling unit for wall-mounting 8 1.02 0.12 2,923.20 Cooling unit for wall-mounting 8 0.58 0.12 Total 12.74 Qty.
Chillers – General remarks on installation Unit with enclosures Chillers may be connected directly to a bayed enclosure suite, providing effective, centralised cooling of all cases and enclosures on a machine or plant. 2 Chillers in the TS 8 Top enclosure system are easily integrated into existing enclosure combinations.
Order information Catalogue 33, from page 456 Aisle containment In server rooms that have not been designed as data cen- Benefits at a glance: tres, the permanent mixing of cooled and heated air often Intake air (cold) and waste air (hot) are unable to mix leads to cooling deficits. Hot-spots make the IT equipment’s It is possible to operate at higher temperature levels work more difficult.
Aisle containment Cold aisle with raised floor The CRAC system routes the cooled air to the cold aisle via perforated raised base plates.
CRAC system Order information Catalogue 33, from page 456 Benefits at a glance: Hot air is drawn in from above, and cold air is expelled downwards into the raised floor Four output categories with a cooling output of 23 to 118 kW – medium: cold water (CW) Four output categories with a cooling output of 18 to 54 kW – medium: refrigerant (DX) The CRAC DX cools using external air via an external condenser unit Optimum energy and space efficiency thanks to intelligent design features, such as the s
CRAC system Rittal CRAC DX system The refrigerant-cooled CRAC DX system operates in conjunction with an external condenser unit that utilises external air for cooling. This combination is used primarily in small locations with a low cooling output.
CRAC CW system with cold aisle containment Order information Catalogue 33, page 460 By using Rittal cold aisle containment in conjunction with High energy efficiency the Rittal CRAC system, you can optimise climate control Increased cooling output per server rack of the room in terms of energy efficiency and cooling Easily retro-fitted to existing systems output.
Sample calculation Step 1: Raise the water inlet temperature Qtotal (Qsens.) 80 kW (80 kW) – 79.9 kW (79.9 kW) Tair; hot (rel. humidity) 26 °C (45%) – 31 °C (32%) Tair; cold (rel. humidity) 15 °C (89%) – 19.8 °C (62.2%) Twater; inlet 10 °C – 15 °C Twater; return 15 °C – 20 °C Pelectr. for cold water 190 MWh/a – 139 MWh/a The temperature in the cold aisle is precisely definable and identical throughout, thanks to optimised temperature distribution.
Order information Catalogue 33, from page 461 Liquid Cooling Package Data centres support corporate process with ever-growing Rittal bayed suite climate control is extremely powerful and output. The packing density in computer systems is increas- the ideal solution for extremely high cooling demands, par- ing, and processor capacity is growing. ticularly when the cooling of server racks cannot be achieved This leads to a continuous growth in heat development. via the room climate control.
Liquid Cooling Package Rack climate control Cooling output from 10 kW to 60 kW Energy saving with high water inlet temperatures (more free cooling) Minimisation of operating costs with efficient EC fan technology Spatial separation of cooling and server rack Integral condensate and leakage management Highly developed control concept including online connection Optional cooling of one or two server racks Simple emulation of redundancies Assembly- and service-friendly Integration into RiZo
Liquid Cooling Package 1 2 Climate control of your data centre is becoming ever more important in terms of availability and energy costs. The Rittal Liquid Cooling concepts ensure precise, problemfree heat loss dissipation of up to 60 kW per rack.
Liquid Cooling Package 1 Rack climate control CW via chiller 2 Bayed climate control CW via chiller CW = Chilled Water Technical System Catalogue/Climate control 3 - 70
Liquid Cooling Package Rack climate control The LCP for rack climate control is designed for siting within a bayed enclosure suite. The cold air is expelled sideways on the front of the servers, and warm air is drawn back in at the rear. The LCP for rack climate control is ideal for maximum cooling performance and maximum fail-safeness, thanks to redundancy of all key components.
Liquid Cooling Package Bayed climate control The LCP for bayed climate control is designed for siting within a bayed enclosure suite. The hot air is drawn in from the room or hot aisle at the rear of the device and expelled at the front into the cold aisle after cooling. The LCP for inline bayed climate control achieves maximum performance and efficiency in conjunction with Rittal cold aisle containment.
Chillers for IT cooling Order information Catalogue 33, from page 454 Benefits at a glance: Redundant pumps, speed-regulated Flow monitor Redundant scroll compressor Minimisation of operating costs thanks to high water inlet Intelligent control concept temperatures for LCP and CRAC operation Interfaces: SNMP, BACnet High COP (coefficient of performance) Integral or separate free coolers (optional) Integration into RiZone Integral automatic bypass valve The Rittal IT chiller
Piping systems Benefits at a glance: Pipeline systems are part of a turnkey solution for the targeted cooling of IT operating environments Media network for the connection of coolers (IT chillers) and cooling equipment (liquid cooling package and Use of a hydraulic separating filter with dual function as a buffer store Maximum energy efficiency thanks to the use of polypropylene piping with low pipe friction losses Systems are suitable for the use of cold water and CRAC systems) Free scalabil
Piping systems Speed-controlled pump Speed-controlled pumps are used to convey the coolant. The pumped volume may be varied by using state-of-the-art EC motors. Your practical benefit: Lower energy consumption thanks to “cold water on demand”. Only the volume of water that is actually needed for cooling is moved through the system. Standard hydraulic layout The standard hydraulic layout includes the use of a hydraulic separating filter.
Order information Catalogue 33, from page 203 – 209 CS Outdoor climate control Benefits at a glance: Please note: The IP 55 protection category of the enclosures is retained CS Outdoor cooling units and CS Outdoor heat exchang- Hermetically separate air circuits – Contaminated ambient air is unable to ingress the enclosure ers are manufactured to order CS Outdoor cooling units and CS Outdoor heat exchang- Backup-compatible 48 V DC air/air heat exchangers ers are supplied as fully integrate
Flexibility Climate control modules of various cooling outputs, may be positioned on the door, rear panel, side panel or roof of the modular enclosure. The climate control modules provide flexibility of installation with three mounting positions, full internal, partial internal or external and the choice of between cooling via the front or rear door of the CS Toptec. Suitable for use within a temperature range from –33 °C to +55 °C (cooling units) or +65 °C (heat exchangers).
CS Outdoor climate control Order information Catalogue 33, page 468 Air/air heat exchangers and cooling units for CS Toptec Benefits at a glance: Wtih sealing frame for universal attachment in 3 positions: internal, partial internal and external Air/air heat exchangers, specific thermal output 85 W/K and 105 W/K Cooling units, useful cooling output 1000 W – 1750 W At many locations worldwide, a temperature range of more concept is capable of limiting temperatures inside the than 50 K (e.g.
CS Outdoor climate control Order information Catalogue 33, page 469 Air/air heat exchangers and cooling units for CS modular enclosures Benefits at a glance: Air/air heat exchangers for roof mounting, spec.
Project planning Page 82 Order information Catalogue 33, page 471 Enclosure heaters Enclosure heaters are used to prevent the formation of con- Fast assembly system: densation inside the enclosure and maintain a constant Quick terminal connection for power supply minimum operating temperature (e.g. when the system is Terminal suitable for parallel connection of an additional switched off overnight).
Enclosure heaters Fast assembly Snap-fastening onto 35 mm support rails EN 50 022 Direct screw-fastening onto the mounting plate Quick terminal connection for power supply (spring terminal) No need for any other terminals No wiring required Energy-efficient design PTC technology for constant heat distribution Computational Fluid Dynamics (CFD)-assisted design for superior heating performance with an identical construction size Output range Without fan 10 W, 20 W, 30 W, 50 W, 75 W, 100 W, 1
Enclosure heaters Project planning Enclosure heaters Heating performance diagram The required thermal output is calculated from: 2 10 8 . QH = A ΔT k 5 5 10 15 ΔT 20 6 5 4 A 7. 30 3 2 1.5 1 10 15 20 30 40 50 60 80 100 . QH 150 200 300 500 . QH = Thermal output (W) A = Enclosure surface area to IEC 890 (m2) ΔT = Temperature difference (K) Based on: Interior siting, static air, heat transfer coefficient k = 5.
Protection categories Sealing of the enclosure To ensure fault-free cooling operation, the enclosure should be sealed. A minimum protection category of IP 54 should be ensured. The IP classification to IEC 60 529 describes resistance to the ingress of solid or liquid substances. The first digit in the IP designation refers to solid objects (dust), and the second to water.
Order information Catalogue 33, from page 473 Climate control accessories Benefits at a glance: Complete system solutions Perfectly coordinated components Finding the perfect climate control solution is now even easier with the right system accessories that adapt the climate control components perfectly to your requirements. From parameter setting to targeted air routing and precise control of the equipment, Rittal has the right solution for all of your needs.
Climate control accessories Air routing Air duct and air deflector systems for targeted air routing and deflection in all areas of the enclosure. Software For planning and calculation of precision, efficient climate control solutions as well as tools for diagnosis, maintenance and long-term data logging. Monitoring Interlinking of cooling units and air/water heat exchangers in master/slave mode. Control including climate alarm warning in the enclosure with the CMC III monitoring system.
Air routing Air diverter systems For wall-mounted units Used in conjunction with climate control side panels and TopTherm wall-mounted cooling units for targeted air routing of the cold air in a downward direction. Particularly wellsuited for densely-packed electrical components in the lower section of the enclosure. See Cat. 33, page 475. Air duct system For TopTherm roof-mounted cooling systems It is possible to route the cold air directly to specific areas of the enclosure using the air duct system.
Software Therm 6.1 software Precision, efficient climate control Rittal Therm undertakes the time consuming calculation of the required cooling or heating power and selects the matching products.
Monitoring Master/slave operation 7 6 4 In open bayed enclosure systems that are not separate from one another, cooling units and air/water heat exchangers with Comfort control should always be used as they may be placed in master/slave mode via bus cable, part number SK 3124.
Monitoring Application example: Master/slave operation and interface board 1 Control point/server room 2 Recooling system 3 Machining centre 4 Welding robot 1 2 4 3 2 Connection example: Master/slave operation Description: The address of the master depends on the number of attached slave units (09 = master with 9 slave units). The address of a slave unit always begins with a 1. The 2nd digit represents the actual address.
Monitoring Enclosure monitoring system CMC III The CMC III monitoring system controls the climate inside the enclosure. The user specifies limits for his equipment inside the enclosure. These are fully automatically monitored by the CMC III system. If a limit is exceeded, the CMC III can report this to the service team via e-mail or SMS. Counteractive action may also be initiated automatically.
Enclosures 䡲 Power Distribution 䡲 Climate Control 䡲 IT Infrastructure 䡲 Software & Services 08.2012 䡲 RITTAL GmbH & Co. KG Postfach 1662 · D-35726 Herborn Phone +49(0)2772 505-0 · Fax +49(0)2772 505-2319 E-mail: info@rittal.de · www.rittal.
