DATA & FACTS Clean Rooms Fresh Breeze Fan-Filter Unit Know-How in Filtered Air for Clean Rooms Table of Contents Fresh Breeze Fan-Filter Unit
Range of Application ...... 3 Sizes ...... 3 Characteristics ...... 3 Fresh Breeze product line ...... 3 Areas of application ...... 3 Technical Data Fresh Breeze ...... 4 Fresh Breeze (FB12) ...... 4 Technical Data Fresh Breeze ...... 6 Fresh Breeze (FB 24) ...... 6 Pressure characteristics, power input and sound power ...... 8 Technical Data FB 12 ...... 9 Technical Data FB 24 ...... 9 Cooling ...... 10 Reduction of supply water temperature with respect to relative air humidity ...... 10 Example of using graph 3 ...... 10 Cooling capacity Fresh Breeze FB 12 ...... 11 Example of using graph 4 ...... 11 Cooling capacity Fresh Breeze FB 24 ...... 12 Electrical connection and control ...... 12 ECV ...... 12 Controls FB-ECV ...... 13 ECP ...... 13 ECQ ...... 14 Controls FBG ...... 14 Controls FB-CP ...... 15 Components ...... 16 Standard Components ...... 16 Casing ...... 16 Outlets ...... 16 Motor Fans ...... 16 Optional Components ...... 17 Filter inserts ...... 17 Cooling coil ...... 17 Soft Wall ...... 17 Unit Type Code ...... 18 Tender specification ...... 19
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2 PR-2012-0055-GB • Subject to changes • R1-02/2016 Range of Application Fresh Breeze Fan-Filter Unit Fresh Breeze product line
Fresh Breeze product line
The Fresh Breeze filter-fan unit (FFU) is an independent sus- pended unit with its own radial fan, designed to supply filtered (and optionally chilled) air to clean rooms requiring uniform air flow. It is indended for operation under normal conditions (e.g. for ambient temperatures between -5 °C and 40 °C with relative air humidity up to 85%). A motor fan draws supply air from the top of the casing (optio- nally through a pre-filter and/or cooling coil) and pushes it through a high-efficiency filter located at the bottom of the ca- sing. This process results in a vertical single-direction (laminar or low-turbulence) flow of clean air. Fresh Breeze units create large-area laminar-air flow fields and are equipped with own power supply or connected to local cle- an-room workstations (Fresh Breeze Boxx or Mobile Fresh Breeze).
Sizes Fresh Breeze units are produced in two basic sizes: – FB 12 (600 x 1200 mm module) – FB 24 (1200 x 1200 mm module)
Characteristics – Full filtration – Uniform air flow – Low initial pressure drop of HEPA filters – Various air-outlet types – Independent control unit – Economical EC motors – Optional automatic constant air-flow control in case of clogged filters – Optional condensation-free water
Fresh Breeze 12 Fresh Breeze 24
Dimensions 1200 x 600 mm 1200 x 1200 mm
Casing material Aluminium or Aluminium in RAL 9010
Filter seal Fluid
Outlets Perforated varnished steel, perforated stainless steel or swirl (for Fresh Breeze with cooling)
Areas of application Standard design solutions for pharmaceutical, electronic, optical, food-processing automotive, chemical and biological industry.
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Fresh Breeze 12 (FB 12)
Fresh Breeze 12
500
Wmm
23 mm
Lmm1200
Fresh Breeze 12 with pre-filter
443 mm
51 mm
5
p
H 75 mm
23 mm
Lmm1200
330 mm 367 mm
48 mm
Pre-filter
501 mm
542 mm
49 501 mm
mm 1174 mm
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Fresh Breeze 12 with pre-fil- ter and water-based coil 75 mm
291 mm 38 mm pc H 680 mm 23 mm
L 1200 mm
504 mm
G 1
Pre-filter 600 mm 504 mm 457 mm 457
Technical Data Nominal air flow* [m3/h] 1200
Length L [mm] 1200
Width W [mm] 600
Height H [mm] 500
Height with pre-filter Hp [mm] 575
Height with water-based coil Hc [mm] 655
Height with pre-filter and water-based coil Hpc [mm] 680
Weight** [kg] 32
Weight with water-based coil** [kg] 40
Coil pipes G 1"
Supply voltage [V AC] 1~ 200 – 277
Frequency [Hz] 50/60
Max. power input [W] ECP/Q 500 ECV 430
*) (average) air-flow velocity 0.46 m/s **) without filter insert / without filling
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Fresh Breeze 24 (FB 24)
Fresh Breeze 24 58 mm 50 mm 500 H mm H 23 mm 23 L 1200 mm
Fresh Breeze 24 with pre-filter 58 mm 50 mm 5 p H 75 mm H 75 23 mm L 1200 mm
136 337 mm mm 236 mm
Pre-filter 249 mm 725 mm 1152 mm 1152 411 mm 411 237 mm
1152 mm
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Fresh Breeze 24 with pre-fil- ter and water-based coil 58 mm 151 mm 39 mm pc Hmm 680 23 mm L 1200 mm
131 mm 339 mm 235 mm 235
Pre-filter 249 728 mm mm 1200 mm 411 mm 411
G 5/4 235 mm 25 mm 135 mm 680 mm 1200 mm
Technical Data Nominal air flow* [m3/h] 2400
Length L [mm] 1200
Width W [mm] 120
Height H [mm] 500
Height with pre-filter Hp [mm] 575
Height with water-based coil Hc [mm] 655
Height with pre-filter and water-based coil Hpc [mm] 680
Weight** [kg] 48
Weight with water-based coil** [kg] 61
Coil pipes G 5/4"
Supply voltage [V AC] 1~ 200 – 277
Frequency [Hz] 50/60
Max. power input [W] ECP/Q 360 ECV 370
*) (average) air-flow velocity 0,46 m/s **) without filter insert / without filling
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Pressure characteristics, power input and sound power
i
1800 RPM FB 12
1540 RPM Filter classes:
U15 1260 RPM H14
Pressure drop (Pa) H13
890 RPM
3 Air volume VL (m /h)
Fig. 1: Fresh Breeze FB 12
1049 FB 24
1030
1010 Filter classes: Pressure drop (Pa) H13 H14 915
3 Air volume VL (m /h)
Fig. 2: Fresh Breeze FB 24
Example of using graph 1
Set: Clean-air velocity w = 0.46 m/s, filter class H13, Clean-air area S = 0.6 x 1.2 = 0.72 m2
3 Supply-air volume: VL = w x S x 3600 = 0.46 x 0.72 x 3600 = 1192 m /h
3 Graph readings: for VL = 1192 m /h, filter class H13, pressure drop ps =145 Pa, initial sound power level LWA ~ 61 (dB)
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Technical Data FB 12 (as specified in Fig. 1)
Sound power level LWA [dB(A)] Point Current I [A] Power P [W] Output Input Total 10 1,30 295 69,3 75,3 76,3 11 1,60 346 69,1 75,2 76,2 12 1,70 403 66,9 73,4 74,3 13 1,80 420 67,0 74,1 74,9 14 1,80 427 67,9 76,3 76,9 20 0,86 196 67,0 73,2 74,2 21 1,11 255 64,6 70,9 71,8 22 1,18 272 64,6 72,0 72,7 23 1,22 283 62,4 71,3 71,8 30 0,57 120 64,0 66,9 68,7 31 0,66 144 62,1 64,9 66,7 32 0,71 157 61,5 64,0 66,0 33 0,72 159 61,4 64,2 66,0 40 0,33 55 51,1 57,0 58,0
Technical Data FB 24 (as specified in Fig. 2)
Sound power level LWA [dB(A)] Point Current I [A] Power P [W] Output Input Total 10 0,44 97 58,8 56,6 60,8 12 0,46 100 57,6 53,0 58,9 14 0,46 102 56,5 53,3 58,2 16 0,44 96 56,8 54,4 58,8 18 0,41 89 57,3 55,9 59,6 30 0,72 163 64,3 59,7 65,6 32 0,76 172 62,4 57,0 63,5 34 0,76 172 61,4 56,5 62,6 36 0,72 164 61,7 60,4 64,1 38 0,63 143 62,9 61,7 64,3 50 1,14 260 69,2 66,2 70,9 52 1,20 276 67,5 63,4 68,9 54 1,26 288 65,7 61,5 67,1 56 1,21 277 66,0 64,9 68,5 58 1,04 237 67,0 66,6 69,9 70 1,61 366 72,9 69,8 74,6 72 1,69 385 70,2 65,2 71,4 74 1,70 389 68,6 63,6 69,8 76 1,64 375 69,1 67,3 71,3 78 1,50 341 71,3 72,8 75,1
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Cooling Fresh Breeze units can also be supplied with a water-based coil installed on top of the unit. The unit must be operated in a condensation-free mode without accumulation of humidity on the heat-exchanger fins, which prevents subsequent damage to the unit and filter (graph 3). The cooling control system is not part of the delivery. Refer to Fig. 4 and Fig. 5 for readings on cooling capacity levels.
Reduction of water-supply temperature with respect to relative air humidity
i Relative air humidity Critical temperature of supply water [°C]
Ambient-air temperature [°C]
Fig. 3: Relationship of air temperature, relative air humidity and water-supply temperature
Example of using Fig. 3
Set: Ambient air temperature 24 °C Relativeair humidity 40 %
Graph readings: Critical temperature of supply water tw1=10 °C The recommended difference for the critical water-supply temperature is 2 °C. The minimum water-supply temperature is tw1min.=12 °C.
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Cooling capacity Fresh Breeze FB 12
i [kW] K Cooling capacity Q
Cooling water volume [kg/h] p [kPa] Δ [°C] L2 Discharge-air temperature T Water pressure drop in the heat exchanger
Supply-air temperature TL1 [°C]
Fig. 4: Fresh Breeze FB 12 – two-row heat exchanger
Example of using Fig. 4
Set: Supply-air temperature TL1 = 24 °C, Cooling-water temperature 15/18 °C, 3 Air volume VL = 1170 m /h
Figure readings: Discharge-air temperature TL2 = 20.8 °C Cooling capacity QK = 1.28 kW Cooling-water volume mW = 366 kg/h Water-pressure drop in the heat exchanger Δp = 0.79 kPa
PR-2012-0055-GB • Subject to changes • R1-02/2016 11 Technical Data Fresh Breeze Fresh Breeze Fan-Filter Unit Cooling capacity Fresh Breeze FB 24
Cooling capacity Fresh Breeze FB 24
i [kW] K Cooling capacity Q
Cooling water volume [kg/h] p [kPa] Δ [°C] L2 Discharge air temperatureT Water pressure drop inWater pressure drop the heat exchanger
Supply air temperature TL1 [°C]
Fig. 5: Fresh Breeze FB 24 – two-row heat exchanger
12 PR-2012-0055-GB • Subject to changes • R1-02/2016 Fresh Breeze Fan-Filter Unit Technical Data Fresh Breeze Electrical connection and control
Electrical connection and controls Fresh Breeze fans are equipped with EC motors and are available in the following ver- sions: ECV ECV Fresh Breeze units are quipped with an EC motor with integrated electronics, which can be controlled via an ebm BUS protocol with a set of commands for commu- nication via an RS485 bus bar (the RS 485 is a protocol for serial data transfer using a double-conductor line). This kind of communication makes it possible to connect up to 32 units; in conjunction with RS485 repeaters up to 31 x 255 (number of repeaters) can be interlinked = 7905 unit. The unit is equipped with a cable box. Controls FB-ECV FB-ECV units are delivered with LISA (German / English) software made by ebm papst for PC platforms. LISA provides: – Individual control and diagnostics of up to 7905 units – Group arrangement of units (up to 255 groups with max. 31 units each) – Commands for a group or all units – Stability of air velocity LISA also enables output of operation-related error messages. Minimum requirements to a PC for control via LISA: – PC with Windows 3.11 and higher – PC must have a serial port (COM) – use a RS232/RS485 converter for communication between FB units and the com- puter NB: If the unit error monitoring is not required, the PC can only be connected to set the fan speed and the required value is subsequently saved into the EEPROM memory of the unit. For more details see the LISA user´s manual. The following parts must be ordered separately: – RS232-RS485 converter including power supply – Cable FB-FB, 2 metres long – RS485 repeaters – RJ45 adapter
ECP and ECQ ECP Fresh Breeze units are equipped with an EC motor with integrated electronics, which can be controlled via a 0-10 V voltage signal or a PWM (pulse-width modulation) signal from a higher-ranking control system. PWM is a pulsating signal with a constant 10V amplitude. Control is provided through the change of the signal´s duty cycle. The PWM frequency range is between 1 and 10kHz. The unit is equipped with a cable box. Fresh Breeze ECQ is the same as ECP unit completed with a pressure controller with integrated pressure sensor. The controller has two potentiometers for setting speed levels for night and day. The unit is fitted with a special pressure sampling nozzle. The controller changes the speed of the motor to maintain the required pressure difference corresponding to particular air-volume parameters.
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FBG controls Digital touch controller FBG for filter-fan units is intended for common control of up to 9 units Fresh Breeze ECP. With this controller it is possible to activate/deactivate units and adjust their fan speed and air velocity. FBG controller is equipped with a relay for external signalling of fan failure. Two values of fan speed can be set for each FB unit (day and night mode). System includes control panel FBG-CP, external switch board FBG-ER and external power supply 15 V (GDR-20-15). Control panel is connected with external switch board by communication line RS485 and power-supply line. Depending on the on-site requirements and conditions, e.g. differences in local pressure drops, you can change the fan speed using the service mode of the control panel.
Maximum configuration: Up to three FBG-ER can be connected with one FBG-CP; every FBG-ER can control up to 3 FFUs, thus one FBG-CP can control up to 9 FB units. Switch board is equipped with DIP switches used for setting address inside ER switch board. Operation: System is controlled via control panel with three push buttons (below symbols MOON, On/Off, SUN). Operating mode is indicated with LED lights: –green: ( O/I ) = RUNNING – yellow: „SUN“ = DAY mode, „MOON“ = NIGHT mode (reduced velocity) – red: [ ! ] = FAILURE – numbers 1 to 9 (yellow) for indication of particular FFU
Controls FB-CP Digital touch panel FB-CP is intended for controlling of one filter-fan unit Fresh Breeze of type ECP or ECQ: switching on/off and setting fan speed (required output air velo- city). Two values of fan speed can be stored (for day and night mode). Controller is also equipped with signalling of HEPA filter and (optionally) pre-filter exchange (differential pressure switches are not a part of delivery). Controller contains additional relay for external fan alarm. Depending on the on-site requirements and conditions, e.g. differences in local pres- sure drops, you can change the fan speed using the service mode of the control panel.
Operation: Unit is controlled using three push buttons symbols MOON, O/I and SUN. FB unit can be switched on by pressing the SUN button (day mode) or by pressing the MOON but- ton (night mode). Short press of button „O/I“ switches the light on or off (if connected). By pressing longer than 5 seconds switches off both the fan and the light. Indication: In standby mode no symbol lights up. Operating mode is indicated with LED lights: – green LED – unit in operation – red flashing symbol [ ! ] (exclamation mark) – motor fault – yellow symbol SUN lights up and indicates operating mode – fan speed cor- responds to day mode (typically average air velocity 0.45 m/s) – yellow symbol MOON lights up and indicates economic („night“) mode (reduced speed) – yellow LED filter symbol together with flashing exclamation mark [ ! ] indicate that the pre-set final pressure drop is reached. In this case exchange optional pre-filter (left symbol) and HEPA filter (indicated by the right symbol).
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Standard Components
Casing The unit casing is constructed of panels made from: – aluminium sheet (standard version) – low weight – resistant to corrosion – particle-rejecting surface – aluminium sheet with powder-paint finish in RAL 9010, semi-matt – suitable for applications in which the casing is visible The following components are fitted on the top of the casing: – air inlet with protective grille – cable box – handles for easy mounting and transportation – threaded holes in the corners for suspension with threaded rods M8 – test probes for measuring pressure drop and aerosol concentration The casing interior is fitted with sound-attenuating mats (hydrophobized glass felt).
Outlets – perforated steel sheet, white paint finish (RAL 9010), clear surface 40% – perforated stainless steel, electrochemically brushed – swirl outlet, steel sheet painted (RAL 9010) – for Fresh Breeze with cooling
Fans The units are fitted with fans with direct drive made by ebm-papst: – highly-efficient at all performance levels which translates into low operating costs – maintenance-free – long service life and reliability – compact and robust – low-noise operation – EC motors (with electronic commutator) – brushless direct current (DC) motors – supply voltage 230 (200-270) V AC 50/60 Hz (transformation inside the motor) – integrated control electronics – easy to control* – allows interconnection of large number of units within a single network – allows control without constant flow – maintenance-free bearings – a fan impeller with aluminium backward-curved blades – a suction nozzle made of galvanized steel sheet
*) For details of control types and options see chapter Electrical connection and control
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Optional Components
Filter inserts – HEPA filters class H13 (or H14) 3 – filter frame is made of aluminium (1) – filter insert (2) is made of pleated microglass paper 2 – supply-air side of the filter has a fluid seal (3) that allows easy and perfectly tight installation of the filter insert 1 – clean-air side of the filter is fitted with a protective grille from painted expanded metal mesh (4) 4 – filter insert, fixed by four corner clamps (5), can be exchanged from underneath the unit 5 – pre-filter can be installed on the top of the unit casing – filters and pre-filters must be ordered separately
Size FB 12 FB 24
HEPA filter H13 M13FEG-2500/A1BR2 [538x1138x104] M13FEG-5500/A1BR2 [1135x1135x104]
HEPA filter H14 A14FEG-1160/A1BR2 [538x1138x104] A14FEG-2400/A1BR2 [1135x1135x104]
ULPA filter U15 U15FEG-1160/A1BR2 538x1138x104 U15FEG-2090/A1BR2 1135x1135x104
Weight HEPA filter [kg] 10 18
Pre-filter Z50 443/443 48 G3 Z50 667/667 48 G3
Cooling coil – Pipes and fins are made of copper, the casing is made of stainless steel. – The unit is fitted with standard 2-row cooling coils for Fresh Breeze 12 and 24 sizes. Operating parameters can be provided with the project documentation. – Coil must be operated in condensation-free mode on site. The valve assembly, measuring and control components must be provided by the customer.
Soft wall – To minimize turbulences the use of a soft wall (e.g. PVC curtains) is recommended along the borders of the laminar air-flow field. Soft walls are necessary to maximize the laminar air-flow zone. – Soft wall is available as soft wall strips with antistatic finish, thickness = 2 mm, width = 200 mm
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Example: F B 1 2 E C P 4 Z D C P 0
FB Fresh Breeze
Size (on request)
12 Module 600 x 1200 mm
24 Module 1200 x 1200 mm
Version
ECV EC motor controlled via LISA
ECP EC motor controlled via 0-10V voltage or PWM
ECQ ECP+ control to constant pressure (flow)
Casing
2 Aluminium in RAL 9010
4 Aluminium
Casing fixation
Z Using threaded rods in the corners
L Special ledges for fixation on a frame of cassette ceiling
Outlet
D Perforated varnished
S Perforated stainless steel
V Swirl (for a Fresh Breeze with cooling)
Cooling coil
0 Without heat exchanger
C 2-row water heat exchanger
Pre-filter
0 Not prepared for pre-filter
P Ready for pre-filter
Soft wall
0 Without mounting for fixation
1 With mounting for fixation
17 PR-2012-0055-GB • Subject to changes • R1-02/2016 Tender specification Fresh Breeze Fan-Filter Unit
__ pieces Fresh Breeze 12 ______pieces Fresh Breeze 24 ______
Standard Components Standard Components Size Size – 600 x 1200 mm – 1200 x 1200 mm
Casing from Casing from Aluminium in RAL 9010 Aluminium in RAL 9010
Aluminium Aluminium
Outlets Outlets
Perforated steel sheet, white paint finish (RAL 9010), Perforated steel sheet, white paint finish (RAL 9010), free area 40% free area 40%
Perforated stainless steel, Perforated stainless steel, electrochemically brushed electrochemically brushed
Swirl diffuser, steel sheet painted (RAL 9010) – Swirl diffuser, steel sheet painted (RAL 9010) – for Fresh Breeze with cooling for Fresh Breeze with cooling Fans Fans
ECV – EC motor controlled via LISA ECV – EC motor controlled via LISA
ECP – EC motor controlled via 0-10V voltage or PWM ECP – EC motor controlled via 0-10V voltage or PWM
ECQ – control to constant pressure (flow) ECQ – control to constant pressure (flow)
Optional Components Optional Components Filters Filters HEPA H13 HEPA H13
HEPA H14 HEPA H14
ULPA U15 ULPA U15
Pre-filter G4 Pre-filter G4
Cooling coil Cooling coil Pipes and fins of copper, casing of stainless steel Pipes and fins of copper, casing of stainless steel
Soft walls Soft walls
With mounting for fixation With mounting for fixation
18 PR-2012-0055-GB • Subject to changes • R1-02/2016 DencoHappel is a global company with expertise in air treatment, air conditioning and air filtration.
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