AIR CONDITIONING
Contents
1. 43 5 3 Commissioning of BNB humidifiers 46 5 4 Precautionary measures during operation 47 D CC EE 48 6 1 Data sheet on safety transformers 48 6 2 Information on conductivity measuring instrument 49 1 Application areas method of operation BNB Model range Units of the ultrasonic BNB 1000 to BNB 8000 model range are available for direct room humidifying The key components of this unit consist of high quality steel or high quality plastic A fan is integrated into chassis which carries the mist generated in the water bath out into the room This unit is used for example for humidifying production rooms EDP rooms vvarehouses printing plants museums restoration workshops theatres and many other areas in which optimum humidity is necessary for production storage or to maintain room air conditions Method of operation The STULZ ULTRASONIC model range of air humidifiers work in accordance with the principle of ultrasonic atomization A 48 V alternating voltage is rectified on a printed circuit board and converted into a high frequency signal of 1 65 MHz This signal is transmitted to a transducer installed in a water bath which converts this signal into a high frequency mechanical vibration T2. La WOOE xeuu up p 31929 WO xeu zuug o lqeo Q Q gt O O e ec ee ze cr ee te S6HO ZZZ L9MZV 001 193MY Ka CV x YIM p ln pi eJe ZINLS Aq p liddns syed ay 0001 ANg oluoseEnin bunu L3 L LO LH L Ave u AOCC 22 3000 PROPORTIONAL CONTROL BNB 2000 Josuas NANINPUO w Xew ajqeo pausalos Ul G XeW e qeo peuaeJos uoN SO0O SI 000 ANd 9ILOSBIA 0002 ANd 14 5 Jo 1euiqeo Josuas Appin 9 vun H 8 M W N 5 O O Q O ee WOOE Xew WU eiqeo S vt 3d hal eV 09 WSN 6 0 222 LOMZV 2 a l 001 19444 PuOD ayin 931 5 5 22 CN Ee WOZ XBW WW9 0 eiqeo HSS Se OS a O Q _ Pal _ a 2540 SE OS O ac COT z Ts al o x YUM PsljUSp eJe ZINLS Aq paiddns sued ay Ave 000 ON SILOSEMIA 0002 ANA 2140511 23 BNB 4000 PROPORTIONAL CONTROL OOOVENE luosedin UHA ae JO euiqeo Jeaby img ZINLS Aq p liddns syed eu 000v ANd 9IUOSBAYA Josues kupiwng Q Z vo g M Josues NANINPUO w Og Xew ejqeo pauaalog Ul G NEU lQE 8 a N N 5 3d ZX i mm LL j j Gi a 6 gt m CA 0 0 t o o Y 3 3 WOODS xeu z l l0 Lage S w
3. 40 Wiring 1 The operating voltage is 220 V 50 Hz control cabinet 2 The power supply line is to be connected to the terminal block of the control station i e L1 N PE 3 There is a connection and wiring between the transformer and humidifying unit conductivity measuring instrument measuring electrode when the humidifier is delivered complete with control station and ion exchanger The wiring must be carried out in accordance with the wiring diagram in the case of partial deliveries The regulations of the local electrical supply companies are to be complied with Wall mounting of humidifier The BNB humidifier can be mounted on brackets drawing no 15 or in a tray drawing no 16 Drawing no 15 BNB bracket Type BNB 1000 8000 Material CrNi 18 8 2 3 mm M03182 o 65 M8 enclose bolts M8x12 loose 41 42 Drawing no 16 VERSIONS CRNI 18 8 1 5MM OR STEEL SHEET 1 5MM STOVE ENAMELLED PEARL WHITE HOLES EVENLY DISTRIBUTED MAKE D 8 5MM NUMBER OF HOLES SEE UNDER E LOAD MAX 35KG IT PROVIDE DRAIN IN THE TRAY IF REQUIRED 5 2 Examples for the mounting of BNB humidifiers The following drawings No 17 and 18 show the installation of a BNB water humidifier on brackets and in a tray li the humidifier is installed on brackets the safety overflow should be connected to the drain with a hose If it is not possible to connect the safety overflow to the drain the humi
4. TECHNICAL MANUAL We reserve the right to make technical changes List of contents 1 Application areas and method of operation 3 2 Technical data for the BNB model range 5 ZA RUMONGE alan n 6 Ze Di ii 11 A Wii rr n s 7 CR e leren UE 8 3 Capacity calculation for ultrasonic air humidifiers 10 3 1 Questionnaire about ultrasonic humidifying systems 12 4 Switching operation and nennen 14 4 1 Design of two point ON OFF control 15 4 2 Design of proportional control 21 4 3 Method of operation of proportional adapter 27 4 4 Connecting pipes between the humidifiers and the switching operation and control 29 4 5 Electrotechnical information on BNB 31 5 Installation commissioning and application limits 33 5 1 Installation of BNB model range 34 5 2 Examples for the mounting of BNB humidifiers
5. where temperature and humidity can be kept at the normal level for good ventilation The hygrostat must be properly ventilated The humidifying unit must not be operated if the room temperature drops below 0 C The water tank of the unit should be emptied 47 48 6 Accessories 6 1 Data sheet for safety transformers 320 VA 160 VA yei gt gt gt gt gt gt zz SCT A N gt gt gt gt gt gt gt gt gt TONONODNG O M 021 8 900 VA gt gt gt gt gt gt gt gt gt L ooongomo NC usa 1INUVIN NV dOdfi 1INUVIN NVOIWH3IAV 630 VA MODEL BNB MODEL BNB gt gt gt gt gt gt gt gt gt LANANG o c Vis E v TRANSFORMER OUTPUT as D O am LLI LL 09 lt CC p 2 x 500 VA 2 x 500 VA Oyl 6 2 Information on the conductivity measuring instrument The conductivity measuring instrument measures and monitors the conductivity of the demineralized water in uS cm For a measured value of 5 uS cm the floating contact activates the pre alarm The contact is closed via terminals X1 9 and X1 10 and opened by X1 9 and X1 8 For a measured value of 20 uS cm the floating contact activates the alarm signal The contact is closed via terminals X1 6 and X1 7 and opened via 1 6 and X1 5 The terminals X1 1 and 1 2 are provided for connecting a pointer type instrument The output voltage is 0 1 V which corresponds to a measur
6. CV x YUM DOUD ole ZINLS Aq paiddns sued u L 0005 ENG UOSENIN ye1S01 BAH 505 s vs r 18 el dd 4 81 Ca vo L vs o VE Ave AZI A8y s SS VA 006 AvZ 19 BNB 8000 ON OFF CONTROL 0008 ANA 21 052111 JO euiqeo Jeabyoimg Josuas NANINPUO UJ G XeUJ QE peueaJos uoN D T f agot DEE 6 ease a AN AA SE KE O 0 O i jueungsu Duunseeui AAnonpuoo ei I O ev x YUM pernuepti eJe ZINLS Aq p liddns sued ay vO L lvs O Ave AZI VA 00S v NZ vel ANE VOL LE vol Ave 0008 ANA 9IUoSEJf S 0 VEL Acl 8v 20 4 2 Design of proportional control With proportional control the actual value is compared with the specified value and the humidifier output adjusted corresponding to the resultant control difference The propor tional control consists of a humidity sensor the continuous action controller as well as the STULZ proportional adapter which represents the interface between the humidifier and control components 21 BNB 1000 PROPORTIONAL CONTROL Josues UJ 0g XBW qe5 pausajog Ul G XBu 80 peueaJos uoN uunseeui il NP o Ww o Ng S xo Ge Gla o 3 92 bY IX DIN e is r 796 t Si ueulnjjsul A yanonpuo 0001 ANA 9ruoseu Jo 1euiqeo JeSByoyms Josues AjipiunH 229
7. I Ng mg L 0 ge E A a Sev 3d Q Q O y lil juownisu 1 Duunseeui i l CV x YHM D LHMM D ose ZINLS Aq p liddns sued ay ye so1 BAH AVS VA 22 000 ANA 9IUuoSEJf 0002 ANA DIU0SEN N vz v9 8j d vO L ve O V9 Ave AZ AS 17 BNB 4000 ON OFF CONTROL 000v ANd 1 5 x YUM ase JO euiqeo JeabyI IMS ZINLS Aq p liddns sued ay 0007 ANd IUOSEIN e1so104H Josues NANINPUO gan JSHIPIUNH 9g XeW ajqeo pausalos 18 ul g XEW ejqeo peueaJos uoN 2 Jd Lab s T p T N gt og Cai o o o 5 To C m o A en emm O ee Gg P 3d Jd 02 gt vz VEL O o AER 84 cA lu uunu Su a i WANONPUOD VOL jVS0 VE Zi Ave AZI AB A AA ev VA 006 AVS 18 BNB 5000 ON OFF CONTROL 0008 ON 9IUOSEAIf JO euiqeo Josues w Oz Xew ajqes pausalos ul G XeUJ lQE peueaJos uON o O m o N gt m o o inf gute CA z men A OS SC 3d 4 x CH CH O m juswnijsul x Duunseeui 2 L 2 dm x Sec
8. supply Operating the system The water tap is opened The hygrostat i e the humidity control is set to the level of the air humidity required If humidifying is required water is automatically poured in up to the required level and the atomization is started The mist then generated is blown by the air flow into the room air and the room is humidified The water level in the container is then kept at a constant level and the air humidity is kept at the set value If during operation the water level in the container falls below the safety level the operation of the humidifier is switched off with the aid of the float switch 5 4 Precautionary measures when operating the BNB model range 1 The humidifying unit is to be mounted so that the mist generated can be distributed fully and evenly in the entire room If the humidifier is attached at a higher point it is to be ensured that it is easily accessible for adjustments maintenance and inspections Direct air flow from an air conditioning system to the humidifier outlet is to be avoided Only demineralized water of lt 20 uS cm may be introduced into the humidifier as supply water A shut off valve is to be provided in the supply line The safety overflow from the humidifier and the condensate from the drain is to be removed via a pipeline high quality steel pipe or plastic pipe The control station is to be installed as close as possible to the humidifying unit Le
9. switch and a housing in which a fan is accommodated A switchgear cabinet must be located externally which contains the control as well as the power supply of the unit Model BNB 1000 Output 1 0 Number of transducers 2 Transformer Primary Secondary Nominal output W 100 Transformer output VA 160 Weight kg 7 1 Dimensions A mm 1024 Dimensions P mm 990 BNB BNB BNB BNB BNB 2000 3000 4000 5000 8000 2 0 3 0 4 0 5 0 8 0 2x2 5 2x4 0 4 6 8 10 16 110V 208V 230V 400V 460V 15 V 50 60 Hz 12V 24V 36V 42V 48V 52V 180 250 340 430 670 320 320 900 900 2x500 9 3 11 2 14 0 16 1 23 0 254 364 474 584 694 220 330 440 550 660 We reserve the right to make technical changes output at water height of 40 mm air temperature of 26 C water temperature of 26 C voltage 48 V Application condition Temperature 5 C to 40 C relative humidity below 90 Water supply Only demineralized water lt 20 uS cm may be introduced into the humidifier as supply water The water pressure to the humidifier should be between 0 5 bar and 6 bar and the water temperature between 5 C and 40 C 2 1 Humidifier section The length of the humidifier section depends on various factors even distribution of the mist in the air flow temperature of the air rel humidity of the air air speed V V V V The diagram below for determining the length humidifier section contains recommended values depending on the most important parameters The
10. switch and relay are automatically operated to switch off the power supply A thermostat switches off the current if the temperature in the air humidifler rises above a preset point Fuses and varistors are installed to protect the electronics Description of the main components 1 Humidifying unit Ultrasonic atomization modules the solenoid valve and the float switches are accommodated in the high quality steel housing 2 ULTRASONIC atomization module The compact ULTRASONIC atomization module is accommodated in the base of the water container It contains the vibration generating circuit an amplifier and a transducer The resultant ultrasonic vibrations are directed towards the water surface The water is atomized in this way 3 Water supply solenoid valve and float switch In order to achieve optimum atomization of the water The water level in the container must be kept as constant as possible In order to meet this condition a solenoid valve and a float switch are used for automatic water supply control With this equipment if the water level in the container falls below the normal level the float switch switches to ON and the solenoid valve opens in order to release the water supply to the container If the normal water level is reached the float switch switches to OFF and the solenoid valve is closed 4 Relay external in control box and float switch dry protection The transducer will be damaged if the humidifier is o
11. OO ALIGINNH NOOY JI GY3YHHL TVNH3LNI u8 E HATVA CIONTIOS 45 46 5 3 Commissioning Preparation for commissioning a The humidifying unit must be aligned exactly horizontally and in the direction of the corresponding air flow b All pipe connections must be made and connected correctly securely and safely c The power supply is 220 48 V and is locked electrically with the fan d All other components must be assembled and installed correctly and reliably e The humidifier must be connected to both electrical and deionized water supplies f A pressure switch for monitoring the water supply pipe for too low pressure is locked to the humidifier Precautionary measures during a longer shut down 1 The water must be drained off if the humidifying unit is not used for a long time 2 The water supply shut off valve must be closed 3 The master switch on the control station must be switched off The following must be checked before the humidifying unit is put into operation again after a longer shut down a The housing of the humidifying unit must be installed safely in the correct position and be in good operating condition b The power and water supplies to the humidifying unit must be connected switched on whilst the humidifying unit is still on its side Under no circumstances may the master switch be or is stored upside down The humidifying unit must never be operated for longer periods of time without an air
12. Olive BNB Humidifier The 6 outside dia 4 inside dia pipe can supply 150 l hour of water at 2 bar water pressure and a length of 10 m In this example part numbers are shown for screwed connections and pipes hoses which can be ordered from the STULZ warehouse JaBueyoxa uoi pug ay Aq NOILdO SNIDYNd 3dld HILYM OILYWOLNY SI p lsneux s JoDueuoxe uoi ay puous a eOI Is HOSN3S ALIGIINNH HO IVLSOHDAH D al jueujeunseeuu ay Aq papioda 10U Sue YOIUM LINISYO 1OHLNO HINOSYYH LIN seouejsqns jo umop uy paisneyxa 51 JeDueuoxe uo ONIH OSNIdINV1O ININ9 NOLLO3NNOO YALYM NV319 ISL BY 19Y8 HO paydlims SI Wa sAs ay s nsu p siaburyoxa uoi ay ussmiaq 6 eqoud Buunseeul jAnonpuoo ay MO1JH3AO A133VS 1SIN 3H L dO SS3NIINV319 NO SLNAWAYINOAY TvIO3dS ANA OO DINOSYHLIN H LIM SINOOH dQ3 SWOOH NV319 HOA 34 TvIO93dS 1840 HO 3414 H31VM LSHO HO OAd 3414 H31VM 3 ATVA 440 LHS 1SH0 HO OAd ANIYA TIVE 3g8Oud SNIHTSV3IN ALIALLONGNOO isq ct LINN YIZITYHININIG 39GdiH1HVO 2 1 NIN ANIYA dOLS avda 9 2 INIT Aldd NS d441VM GALYAYILNN NOILdO SLINN 39GlH 1HVO YIIVM H3ZI TVH3NIIN3G HOS L3NI8VO LHDI3H 31VH adN3931 0000000000 4 12 E 090009000000 Water demineralizer unit with 2N on exchangers in series Examples for the installation of BNB humidifiers 39
13. a sketch Wall consoles yes no Wa Make type L on off L stages number continuous on off stages continuous J on off 1 stages Water treatment present yes Ino System softener partial water softener _ reverse osmosis lion exchanger Hardness dH Conductivity uS cm Make Model Output 0l n m3 h See separate questionnaire for water treatment Sender Company Compiled by Date Signature Code STT011 13 4 Switching operation and control An external switchgear cabinet must be provided for operating the ultrasonic air humidifiers As well as the transformer required for operation the switchgear cabinet must contain contactor relays the master switch terminal strips and if necessary the proportional adapter controller or the conductivity measuring instrument The control of the air humidifiers can be operated two point ON OFF or proportional The control is to be suitably adapted to the project in each case When wiring the switchgear cabinet the suppressor diodes supplied are to be switched parallel to the vibrator printed circuit boards to protect the transducers In addition the contactor supplied for the bath feedback level of water container must still be used and connected to the RC element supplied Other contactor coils cause irreparable damage to the float switch Defective wiring of the switchgear cabinet may lead to a defect in the humidifier the
14. by water level 48 VAC 50Hz Terminal 11 Supply voltage 12 V AC supply voltage Terminal 12 Supply voltage of the P adapter 1W Terminal 13 Input 48 VAC Floating relay contact Terminal 14 Output for water inlet valve Terminal A1 Input 48 VAC Isolated electronic alternating voltage zero switch Terminal A2 Output Load 24 280 V AC 50 Hz 21 A Continuous load 40 A briefly Left stop 0 30V Right stop 0 20V Power electronics 4 4 Connecting cables between the humidifiers and the switching operation and control 1 ON OFF Control proportional control The preassembled cables which are 2 metres long and provided with a plug are plugged into the sockets provided in the units and are screwed together Recommendations for cable dimensioning see 3 should be taken into account for an extension of the connecting cables 2 Preassembled cable VIEW FROM SOLDER SIDE VIEW SOLDER SIDE Ge U en y 77 EY we 6 PIN PLUG 4 PIN PLUG BNB 5000 8000 VIEW SOLDER SIDE I ey 2 PIN PLUG A S BNB 1000 to 4000 o e 1 9 plo 29 30 3 Cable dimensioning The connecting cable between the humidifier and the control box transformer reduces the voltage at the humidifier in accordance with the following formula 3b 6xLx1 1000 x A voltage drop V L Cable length m current A A cross section of cable mm If the voltage drop between the control box and
15. d as a safeguard However no water flows into the overflow during normal operation Local water regulations are to be complied with 35 Connections on the water side to the BNB humidifiers The position of the connections and further unit dimensions can be found under Item 2 2 Water supply line Inlet screwed connection in humidifier scope of supply Union nut L50010 including olive scope of supply BNB qos water pipe 6 dia Olive scope of supply Overflow BNB To 36 BNB 2 O ring and plug i n scope of supply Connection of a drain line with solenoid valve is only necessary if for particular hygiene regulations draining of the water is required in the event of a longer OFF time of the humidifier 3 Piping example F00760 350 mm F00770 680 mm 3 4 PVC hose with fabric reinforcement Conductivity screwed connection 7 pressed in r m A 3 4 3 4 3 4 lon changer 2 L 80700 BNB Humidifier PE pipe Humidifier Quick fit screwed connection 6 dia incl Teflon ring for PE pipe M10422 38 MU Union nut scope of supply measuring probe 6 4 dia PE pipe lt 9 bar M03777 High quality steel pipe L11200 5 T screvved connection 6 dia for PE pipe M10421 T screwed connection 6 dia for high quality steel pipe M11206 Union nut Scope of supply of ENS humidifier for high quality steel pipe sr n
16. difier is to be installed in a tray in which a water sensor is mounted If there is a malfunction and the humidifier overflows a solenoid valve installed immediately upstream of the water entry into the humidifier is closed via the water sensor The minimum distance to persons who are in the area of the humidifier should be 5 0 m Minimum distance to ceiling 300mm NI 200 mm Se N 43 Humidifier installation with wall brackets Drawing no 17 HIONVHOXA NOI avI4H_L ININ 2k NOLLO3NNOO 4SOH ha Al44VS 1 zi EV OlH19414 440 111HS 3qOdd Jdid H31VM NV310 CS gt GN3941 ALALLOTGNOO ZJHHL AYNYALNI 8 1 WIN 9 F OLH3S HOLOINNOD JOVNIVEO MN V OL A 022 NN 9 7 NOOD G3M3YHOS ONIH S zyovdua TIVM TT LANIGVO TOHLNOO ALIAINNH NOOY NG HOSN3S IN 44 Safety tray for water sensor Drawing no 18 dOSNIS 4I1YM NOI TVNGALNI u8 L HOLO3NNOO 39VNIVHG NIN 2k NOLLO3NNOO 3S OH MO 13H3AO Al44VS VZA AVHL AL4 VS kg TVNH31X3 NOILOANNOO INA PIK 7775 Nm TI ANIWASSO LNHS INIT HS IM NIH SNIdIAVI 36 4 DNIENSVAIN ALALLINANOD NVH VIQ NOLLWTIVLSNI HOS GN3531 ININ 9 7 OLH3S WW SE 3dld 3 N 3SVHd V OL A Occ 2 13NI4VO TOHLNOO IN YOSNAS 2 TOHLYM VIA Q3TIOH1N
17. difying unit is mounted or installed at a high point a platform is to be provided for maintenance and inspection purposes Installation diagram 220V 50Hz 48V 50Hz Legend for installation diagram po iw 10 11 12 EE E a Control station Provided by customer Connection 3 4 external thread flat sealing Provide for continuous pipe interruptor Hand operated valve High quality steel pipe 6 mm dia 1 4571 Ultrasonic humidification Measuring electrode Water treatment system ion exchanger reverse osmosis system Overflow Water drain Provide drainage Condensate tray V4A Attaching the hygrostat 1 The hygrostat should be attached to the wall where the relative humidity can be properly measured where the through ventilation is good and where the hygrostat can be operated set conveniently Water supply pipe s 1 2 Deionized water of lt 5 uS cm must be used for the humidifying unit A shut off valve must be fitted to each unit Admission pressure 0 5 to 6 bar The deionizing system must be connected to the humidifier with a material which is resistant to deionized water e g PE or high quality steel 1 4571 Metal filings swarf and dirt must not enter the water pipes All pipes must be cleaned before connecting the pipes to the humidifying unit The supply line can be in the pressure hose or high quality steel pipe depending on the safety risk The overflow pipe must be connecte
18. djust the ON time cycle between 1 sec and 3 sec with the DIP switches on the printed circuit board of the proportional adapter ON time cycles Position of DIP switches Switch second s position UP OFF 2 DOWN ON 3 An increasing value at the input of the P adapter causes an extension of the ON time of the output All inputs are isolated The ON time of 10096 is achieved when the maximum value specified is achieved at one of the inputs 3 Technical data Electrical power consumption 1 VV Power loss at 10096 ON time 21 W at 21 A eff Load voltage 24 280 V eff Peak off state voltage 600 V Leakage current at 280 V eff 8 15 mA eff Switching on off characteristics switching zero voltage Dielectric strength of electrical isolation min 2500 V eff Insulation resistance 50 MOhm Operating temperature 0 80 C Max heat sink temperature horizontal 63 C vertical 55 C 27 Connection assignment Terminal 1 0 10 V DC Polarity reversal protected controller input Terminal 2 GND 20 kOhm Terminal 3 0 20 V DC Polarity reversal protected controller input Terminal 4 GND 40 kOhm Terminal 5 0 20 mA DG Polarity reversal protected controller input Terminal 6 GND 1 kOhm Terminal 7 0 20 30 V AC Electrically isolated controller input Terminal 8 GND gt 150 kOhm TPI adjustable to 20 30 V Terminal 9 Bath feedback Humidifier feedback Terminal 10 Bath feedback Release
19. gt o WOOE xew UJUIO lqeo Gi A LOS L xew WW9 Y 9 53 ng CL o O o ay Q Q X4 Q se 3d 57 ec Ze eel ce LE 3d i i 1 0 013 27 09 I y ye Bunnse ui S6HD ZZZ L9MZV N Pa in 001 un x E 5 CN NT UHM Doten ase ZINLS Aq p liddns sued ay LH VA OOS 0008 ANA 1405 1 lJIpiuunH 13 19 IH CH vo l Ave ven E s 26 4 3 Method of operation of the proportional adapter 1 General The M 02719 P adapter proportional adapter is an output unit which varies its ON time proportionally depending on four different controller inputs 2 Function After the threshold value of 1 2 VDC or 1 2 mADC is exceeded the relay switches on the water supply valve at terminals 13 and 14 see electrical diagram proportional adapter M02719 A prerequisite for this is that the supply voltage of 12 VAC is applied to terminals 11 and 12 If then the bath feedback level of water container of 48 VAC 5OHz takes place at terminal 9 and 10 of the proportional adapter the green LED lights up At the same time the solid state relay starts to operate with an ON time of 10 This is displayed by the red LED flashing lt is possible to a
20. he transducers installed are so called thickness transducers which change their thickness 1 65 million times per second corresponding to the applied signal of 1 65 MHz The surface of the transducer vibrates at such a high speed that the water can no longer keep up due to its mass moment of inertia and a water column builds up above the transducers immediately after the unit is switched on During the negative amplitude of the transducer the water cannot follow the rapid movement and an instantaneous vacuum is created Bubbles occur due to cavitation which are catapulted to the edge of the water column in the curve of positive amplitude and collide with each other with a large force During this process the finest particles of water are atomized at the edge of the water column Cardan waves are generated due to the focusing of the sound waves right underneath the water surface in the center of which the smallest water droplets detach and produce a mist which is immediately picked up by the air flow After switching on transducer 2 Technical information on the BNB model range The BNB ULTRASONIC humidifier works in accordance with the principle of ultrasonic atomization The mist which is produced in a water tank with the aid of a transducer is blown into the room by a built in fan The humidifier consists of the atomization modules the supply module with a solenoid valve via which the water supply runs as well as float
21. ing range of 0 50 uS cm The conductivity cannot be checked with a multiple measuring instrument A potentiometer is provided for the final calibration of 0 1 V Calibration can be made by connection of measuring shunts for checking the printed circuit board The individual subsequent resistors connected in place of the electrode simulate 500 kOhm 1 US cm 100 kOhm 5 US cm 50 kOhm 10 uS cm 25 kOhm 20 uS cm 10 kOhm 50 uS cm The electrode itself can only be checked by comparative measurement 49 Conductivity measuring instrument Terminal assignment X1 1 0 1V actual value output X1 8 K1 normally closed contact O 50 uS cm 5 US cm X1 2 Ground X1 9 K1 Pedestal pole X1 3 Electrode X1 10 KI normally open contact X1 4 Electrode X1 11 OV supply N X1 5 K2 normally closed contact 20 uS cm X1 12 24V supply 50 60 Hz X1 6 K2 Pedestal pole X1 13 220V supply 50 60 Hz L X1 7 K2 normally open contact Measuring probe Ha LI Plastic hose 7 mm dia E
22. oc Duct Room make a sketch L Suction side Pressure side Wall consoles yes Ino Operating times hours d d W W a Control Present Jyes Ino Make type continuous signal VmA l on off stages number Control cabinet new L existing continuous on off stages Only control parts for switchgear cabinet installation continuous L on off L stages Water treatment Water treatment present Ino System softener partial water softener reverse osmosis lion exchanger Hardness AH Conductivity uS cm Make Model Output m3 h See separate questionnaire for water treatment Sender Company Compiled by Date Signature Code STT011 QUESTIONNAIRE about ultrasonic humidification systems Room temperature specified value Room volume _ m Height Ventilation system yes Is the supply air humidified yes Supply air temperature C Heat load in room kW Possible types of installation of humidifier Monobloc Duct _ Suction side _ Pressure side Operating times hours d Control Present lyes Ino continuous signal VmA Control cabinet new L existing Only control parts for switchgear cabinet installation Water treatment Room humidity specified value 9 m Width m Length no Quantity of air m3 h Fan stages Number Supply air humidity R H Outside air proportion 96 Room make
23. oz xeu zug lqeo Ei rr 0 m O e O O se ye 57 ec gel cl te Ii oe Jd 2 euonuiodoiqd 61120 O LL r Pz ueuinJjsul E t Pa uunseeui G6H0 7ZZ L9MZV ei AL AAn npuoo 0011944 zi 01 0 9 0277 ev CV v Ave 24 BNB 5000 PROPORTIONAL CONTROL Josuas AjAnonpuoo Ul G Xeui ejqeo pausa os u0N sng UJ Je e 8Jd b RK OLA QO IL ILA y o lu unusu Duunseeui a aimi TI AO 1 0 e ME por ev 000S8NH 9IuoSEnIf JO euiqeo Jeabyoimg Josues AjipiunH EMEN 229 vao 8 8 a A A 9 O O Q O LL LL WOOE xew i woz Xew O 0 0 _ SH 4 s ve 3d g re 8 u N 002 S6HD Z 194ZV 001193Mel v 9 ZU 4 zWW9 N lqEo x YM peynuepr ae ZINLS Aq p liddns sued ay 22 CH 19 LH tu L v Av Jajdepe 0008 ANA IUOSEN x 25 BNB 8000 PROPORTIONAL CONTROL 00088NG 9LUOSBIA JO euiqeo Jeaby img Josues 269 wo Lg Y O O Q PAKANA sss Josuas NANINPUO UJ 0g XBW ejqeo pausaJos UJ G XeUJ lQE pausaJos u0N R o y
24. perated with a reduced water level A float switch and a relay in the control station are interposed to prevent such an operating condition If the water level falls below the safety level for any reason the float switch switches to OFF operates the relay and thus switches off the electrical power supply to the unit 5 Fan The mist generated in the water tank is carried into the room by the fan A special design makes it possible to generate a variable supporting air flow in order to ensure rapid dispersal of the aerosols Air outputs Model BNB BNB BNB BNB BNB BNB 1000 2000 3000 4000 5000 8000 6 6 Output m3 min 1 2 1 8 2 4 3 6 4 2 the values apply to a supply voltage of 48 V 50 Hz 3 Capacity calculation for ultrasonic air humidifiers Example Humidification of a room with gap ventilation The following data is required to determine the humidifier output for rooms without a ventilation system Example gt Size of room m 500 m3 gt Temperature humidity in room 22 C 50 rel gt Conditions of outside air temp humidity 0 G 87 rel gt Estimate of gap ventilation windows doors 500 m3 h The gap ventilation for a new building where the door is opened lt twice per hour is lt 1 times the room volume Calculation of humidifier output Determine the AX from the room condition and the outside air condition in the h x diagram Determine the air quantity which is to be humidified 12 x g kg b
25. refore the switchgear cabinets are to be wired in accordance with the wiring diagrams made available The parts supplied by STULZ are identified with in the wiring diagram 4 1 Design of the two point ON OFF control The most simple type of control is via a hygrostat which compares the room humidity value actual value with the set value specified value If the actual value is below the specified value the hygrostat switches on the humidifier if the value is above this the unit is switched off The control process runs with a predetermined switching hysteresis around the specified value BNB 1000 ON OFF CONTROL 0001 ON oluosEnin x UUM panuap eJe JO jeuiqeo seaBUdIIMS ZANLS Aq peiddns sued ay 0001 ANA 21 0521 Josues Ajlajonpuo ye so1 BAYH HUH mE ul OZ NEU pausaos bluz Ul G XEW 9 qeo pausaJos u0N z dad O 0 o ie sn 4 0 5 SEI 7 1 4 AX S 3 bs CL di 3 s EE ma a E RR wass O O O 5 sg GF vg G bY UN 09 amp I d CA N 7 3 Cm vz AQ Q Q Ss store 2 1 87 i p 1ueuunJjsul T 4 Duunseoui i Lol i VOL IYSO 92 9 6 zi Ave AL AS LO ssin M C VA 09L N AVS 16 F CONTROL BNB 2000 3000 ON OF Josues AjAnonpuo5 UJ G XBW 8 qeo peusesOS UON 000 ANd IUOSEN 000c ANA oluosenin JO euiqeo Jeabyoimg gt e m o
26. ter The most important materials can be obtained from the following table Materials for deionized water Material Maximum temperature HHigh quality steel 1 4571 gt 100 C PVC polyvinylchloride 60 C PP polypropylene gt 100 C PVDF polyvinylidenefluoride gt 100 C PA polyamide 60 C PSO polyethylene 60 C Application limits Water quality lt 5 uS cm briefly up to 20 uS cm Voltage SOAC 380V 10 or 220 V 1096 Humidifier voltage 48V 1096 Water pressure 0 5 bar to 6 bar upstream of humidifier Water temperature 8 C to 40 C Air humidity 89095 R H SOAC Switching operation and control In the case of exceptionally high dust levels in the air e g silicon dust in printing plants the air must be filtered as dust deposits on the water reduce the output of the humidifier 33 34 5 1 Installation of BNB model range 1 The unit must be mounted or installed so that the mist blown out by the fan is distributed evenly in the entire room 2 The following notes are particularly to be complied when installing assembling a The unit must be installed in a totally horizontal position b Between the mist blasting and each component which may be upstream of the unit a free area must be kept which is longer than the humidifier section see Page 7 c Afree area of at least 50 cm must be left between the upper edge of the humidifying unit and the lower edge of the celling 3 Ifthe humi
27. the humidifier is less than or equal to 4 the voltage value is still within the tolerance range However if this voltage value is not achieved a larger cable cross section must be selected corresponding to the table or the voltage on the secondary side of the transformer must be changed to 52 VAC Type Voltage Current Max cable Max cable length 1 5 mm length 2 5 mm BNB 1000 48VAC BNB2000 48VAC The transducers are supplied via two separate strands on the BNB 5000 and BNB 8000 the current dividing and the maximum cable length increasing for a standard cross section 4 5 Electrotechnical information on BNB Internal wiring BNB 1000 4000 H1 O N N N KO BO HO O G1 Lai A ee ee an NG ele mm ESA A ES ID 2 ee eg Legend V2 4 Varistor CH Relay plate HR Auxiliary relay SV Solenoid valve FS1 Float switch for water supply FS2 Float switch for low water level TP Thermostat FAN Fan NB1 n Ultrasonic atomization module 32 BNB 5000 8000 V2 4 Varistor CH Relay plate HR Auxiliary relay SV Solenoid valve FAN Fan N 1 FS FS2 TP NB1 n Float switch for water supply Float switch for low water level Thermostat Ultrasonic atomization module 5 Assembly commissioning and application limits When planning and assembling the ultrasonic humidifiers it is imperative that all materials which come into contact with the deionized water are resistant to deionized wa
28. tolerance is 0 5 meters rel humidity upstream of the humidifier 45 1 Z Z LLL Ww gt LU IIA ZX m a P Gi tie CC IL ILL IL II SRE Z EA X17 ZZ SEET 2 Z r f Z 11 Humidifier section m Dee V4 W M z d SS Use of a proportional control is another alternative for reducing the humidifier section This reduces the output of the humidifiers as required for more than 90 of the operating time and thus reduces the humidifler section preserves the transducers and maintains the even distribution of the mist even in part load operation The measurement is made vvith the air flap control max The humidifler section reduces in the min position The remainder of the mist stream can be seen on a black background over the specified sections 2 2 Dimensional drawings For dimensions A and P see Page 6 under Dimensions Legend 1 Humidifier unit 10 Safety overflow 2 Fan housing 11 Mist guide pipe 3 Mist guide cover 12 Ring and nut 4 Fan 13 Installation foot 5 Metal plug 14 Air filter 6 Cable 15 Water supply 7 Metal plug 16 Shut off valve 8 Cable 17 Air flap controller 9 Water drain provided by customer 2 3 Description of unit Safety precautions Automatic supply water monitoring by solenoid valve and float switch Protective device against running dry if the water drops below a preset level the float
29. y 5 g kg The example involves an air change hour Size of room 500 m x 1 air change x 1 2 air density 600 kg hour Humidifier output Weight of air x Ax humidifier output required 600 kg nour x 5 g kg air 3000 g hour humidifier output required Note STULZ ULTRASONIC humidifiers atomize the water into the smallest water droplets lt 0 001 mm The mist thus generated aerosols extracts the heat out of the ambient air enthalpy and changes its state from liquid to gaseous The ambient air is cooled down by this adiabatic behaviour heat extraction from the ambient air Example Air condition before humidification Temperature 25 C relative humidity 3096 Humidity added of Ax 3 g kg 3 x g kg Air condition after humidification Temperature 18 C relative humidity 70 3 1 Questionnaire about ultrasonic humidification systems Please use the following questionnaire for planning a STULZ ultrasonic humidifier system QUESTIONNAIRE about ultrasonic humidification systems Room temperature specified value Room humidity specified value 96 R H Room volume m Height m Width m Length m Ventilation system yes Ino Quantity of air m3 h Is the supply air humidified yes no Fan stages Number Supply air temperature Supply air humidiiy 8 8 8 8 8u8 8 RH Heat load in room kVV Outside air proportion Yo Possible types of installation of humidifier Monobl
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