Stulz BNB Series User manual

Original user guide
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STULZ the natural choice
Technical Manual
STULZ UltraSonic Humidifier
System for direct room humidification BNB
BNB 1000A BNB 4000A
BNB 2000A BNB 5000A
BNB 3000A BNB 8000A
Version 10-2015
Item No. 1000683 EN

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   STULZUltraSonic-SystemforDirectRoomHumidicationBNB-
Dear Customer,
Many thanks for choosing to buy a STULZ product. STULZ has been a purveyor of sophisticated technical solutions for comfort
and precision air conditioning applications since 1947.
Best regards,
STULZ GmbH
Hotline
For general inquiries, please get in touch via our hotline on
[phone] or
[email protected]/en.
Technical Support
In the event of technical problems, please contact our Technical Support on
[phone]
Current updates to technical documentation
Youcanndthelatestdocumentsandbrochuresat:
www.Stulz.de/en/e-stulz
Manufacturer's address
STULZ GmbH
Air Conditioning and Humidifying Systems Division
Holsteiner Chaussee 283
D-22457 Hamburg
Germany

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STULZUltraSonic-SystemforDirectRoomHumidicationBNB-  
CONTENTS
1. INFORMATION ON THIS DOCUMENT .................................................5
1.1. Validity......................................................................5
1.2. Target group .................................................................5
1.3. Conventions regarding illustrations................................................5
1.4. Abbreviations ................................................................5
1.5. Formatting...................................................................7
1.6. Nomenclature ................................................................7
1.7. Liability claims for defects .......................................................7
1.8. Exclusion of liability............................................................7
1.9. Copyright....................................................................7
2. SAFETY .........................................................................8
2.1. Proper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.2. Basic safety instructions ........................................................9
2.3. Qualicationrequirementsforpersonnel ..........................................10
2.4. Compatible products ..........................................................10
2.5. Other applicable documents ....................................................11
2.6. Transport and storage.........................................................11
2.7. Installation..................................................................11
2.8. Spare parts .................................................................11
3. PRODUCT PACKAGE .............................................................12
3.1. Optional accessories..........................................................13
4. PRODUCT DESCRIPTION ..........................................................14
4.1. Sizes ......................................................................14
4.2. Rating plate.................................................................15
4.3. Description of unit ............................................................16
4.4. Operatingprincipleofultrasonichumidication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
4.5. Technical data ...............................................................18
4.6. Dimensional drawing..........................................................19
4.7. Application limits .............................................................20
4.8. Service life of materials........................................................21
4.9. Water treatment .............................................................22
4.10. Use in conformity with VDI 6022.................................................24
5. DESIGN AND PLANNING...........................................................26
5.1. Humidierdistance ...........................................................27
5.2. Applications.................................................................29
5.2.1. Comfort applications ..................................................29
5.2.2. Equipment room applications ...........................................29
6. OPEN-LOOP AND CLOSED LOOP CONTROL ..........................................30
6.1. Master/slavecontrolcabinetforultrasonichumidier(USM/USScontroller) ...............31
6.2. ON/OFF control module .......................................................32
6.3. Accessorysets(controlledbyon-siteswitchgearcabinet). . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
7. INSTALLATION ...................................................................33
7.1. Installation diagram...........................................................35
7.2. Installation clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
7.3. Wall-mounted installation ......................................................37
7.3.1. Wall bracket dimensions ...............................................38
7.3.2. Safety tray dimensions ................................................39
7.4. Connectingwatersupplyline(s) .................................................40
7.4.1. Connecting the pipe for the demineralized drinking water......................42
7.4.2. Waste water connection................................................44
7.5. Electrical connection ..........................................................49
7.5.1. Connectingcablesbetweenthehumidierandcontrolcabinet..................49
7.5.2. Cable dimensions ....................................................53
7.5.3. Internal wiring .......................................................55

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8. START-UP.......................................................................57
8.1. ReportsandchecklistsforSTULZUltraSonichumidiers .............................60
9. OPERATION .....................................................................61
9.1. Operation ..................................................................62
9.1.1. Using the USM.......................................................63
9.1.2. Operating the ON/OFF control module ....................................69
9.1.3. Operation when using accessory sets .....................................70
10. DECOMMISSIONING ..............................................................71
10.1. Switching off ................................................................71
11. MAINTENANCE ..................................................................72
11.1. Maintenance cycles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
11.2. Checklist for hygiene checks in line with VDI 6022...................................74
11.3. Visual inspection .............................................................75
11.4. Cleaning ...................................................................76
11.4.1. Cleaning water-bearing parts............................................76
1.1.1. Cleaningtheairlter ..................................................77
11.4.3. Cleaning the water tank, transducers and mist guide tubes ....................78
11.5. Inspect the electrical system....................................................80
11.5.1. Replacing the relay PCB ...............................................82
11.5.2. Replacingthesolenoidvalveandoatswitch ...............................84
11.5.3. Replacing the transducers ..............................................86
11.5.4. Replacing the nebulizer print plate .......................................88
11.5.5. Replacing the fan.....................................................89
12. DISMANTLING AND DISPOSAL .....................................................90
12.1. Dismantling .................................................................90
12.2. Disposal ...................................................................90
13. SPARE PARTS LISTS..............................................................91
14. EXPLODED VIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
15. TROUBLESHOOTING .............................................................97
16. CE DECLARATION OF CONFORMITY ................................................98
17. MAINTENANCE CHECKLIST.......................................................102
18. START-UP CHECKLIST ...........................................................104
19. HUMIDIFICATION TEST REPORT ...................................................106

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STULZUltraSonic-SystemforDirectRoomHumidicationBNB-  Informationonthisdocument
1. Information on this document
ThisTechnicalManualcontainsdetailedinformationoninstallation,conguringtheimplementedpro-
grams, and troubleshooting.
The Technical Manual must be kept on site at the location of use and be available at all times.
Make sure that persons responsible for operating the product and working on the product have fully read
and understood this guide. If you have any questions, please call the hotline.
1.1. Validity
ThisTechnicalManualappliestoSTULZUltraSonichumidiersBNB1000A-BNB8000A.
1.2. Target group
Thisdocumentisintendedforqualiedelectriciansandspecialistplanners.Theworkdescribedinthis
documentmayonlybeperformedbypersonswiththerequisitequalications(see"2.3.Qualication
requirements for personnel" on page 10).
1.3. Conventions regarding illustrations
Safety and warning notices are indicated by signal words. The signal words indicate hazard levels with a
risk of injury of varying degrees of severity. The signal word NOTICE indicates a risk of property damage.
Signal word Meaning Consequences of failure to observe
DANGER Immediate threat of danger Death or serious injury through a high-risk hazard
WARNING Immediate threat of danger Death or serious injury through a medium-risk hazard
CAUTION Immediate threat of danger Slight injury through a low-risk hazard
NOTICE Immediate threat of danger Damage to property or the environment
Note Special notes on optimum use of the product
1.4. Abbreviations
Abbreviation Name Explanation
A Ampere SIunit:electricalcurrent
A Cable cross-section in mm2
AC Alternating current ─
BNB Box Nebulizer Version BUltrasonichumidierfordirectroomapplications
CH Relay panel
DC Direct current ─
DIP Dual in-line package Describes small switches with 2 parallel terminal strips

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Abbreviation Name Explanation
FAN ─
FS Float switch ─
GND Ground Ground wire or signal ground
─ ─ ─
HR Auxiliary relay
i Voltage drop in V
I Current in A
kg/h Kilograms per hour Compositeunitformassowrate
K Kelvin SIunit:Temperature
CFU Colony forming unit
Unit used to quantify microorganisms when the number of
viable microorganisms in a material is determined by
culturing.
L Pipe length in m
LED Light-emitting diode ─
l/h Liters per hour Compositeunitforvolumetricowrate
m Meter SIbaseunit:Length
min Minute SIunit:Time
N Neutral wire ─
NB Nebulizer ─
NC Normally closed Relay is closed without current
NO Normally open Relay is open without current
RH Relative humidity in %
s Second SIbaseunit:Time
SV Solenoid valve ─
T Cycle time ─
ti Pulse time ─
TP ─Thermostat
tp Rest time ─
tw Delay time
UpSupply voltage ─
Uout Output voltage ─
Uin Input voltage ─
USM UltraSonic Master ─
USS UltraSonic Slave ─
V Volt SIunit:electricalvoltage
ΩOhm SIunit:electricalresistance

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1.7. Liability claims for defects
Following the assembly and operating instructions in this Technical Manual is a prerequisite for trou-
ble-free operation of the STULZUltraSonicBNBultrasonichumidier and for potential claims for defects.
Read the Technical Manual before working with the product.
1.8. Exclusion of liability
Following the assembly and operating instructions in this Technical Manual is a prerequisite for safe
operationoftheproductandforattainingthespeciedproductcharacteristicsandperformancefeatures.
STULZshallnotbeliableforanyinjuryorpropertydamageoranynanciallossresultingfromnon-
compliance with the assembly and operating instructions. In such cases, all liability for material defects is
excluded.
1.9. Copyright
All brand and product names are trademarks or registered trademarks of the products bearing these
names. UltraSonic® is a registered trademark of STULZ GmbH.
All rights reserved, including in respect of this translation. No part of this document may be reproduced in
anyform(e.g.printing,photocopying,microlm,datatransferorothermethod)orduplicatedorpro-
cessed by electronic means, without the written consent of STULZ GmbH.
Technical data subject to change without notice.
1.5. Formatting
Format Name Example
bold
Operating states
Values that require setting
ON or OFF.
Set the voltage to 7.5 V .
italic References in the document Prerequisite, procedure, result
" XX" Buttons Press the "►" button
1.6. Nomenclature
Full name Name in this document
STULZUltraSonicBNBultrasonichumidier Ultrasonichumidier
STULZ UltraSonic Master USM
STULZ UltraSonic Slave USS
STULZ heat exchanger terminal module FDSX Heat exchanger terminal module FDSX
Table 1: Nomenclature

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2. Safety
The plant operator must ensure that the safety and warning notices in this documentation are observed
and adhered to. The plant operator must furthermore ensure that any persons working on the system
have read and understood the documentation in its entirety. The documentation must always be kept in
the same place as the equipment.
Failure to observe the safety and warning notices may put personnel, the environment and the system at
risk and voids all entitlement to claims for material defects.
Safe operation of the system is only ensured if it is used in accordance with its proper use. The limit
values set out in the technical data must never be exceeded.
If anything is unclear or you require additional information, please call STULZ Technical Support.
2.1. Proper use
TheSTULZUltraSonicBNBmodelseriesisdesignedfordirectroomhumidicationthroughtheultra-
sonic atomization of demineralized drinking water. The STULZ UltraSonic BNB model series is intended
solely for indoor use, and may only be used with compatible products. Any other use besides or beyond
this shall be regarded as improper use. STULZ cannot be held liable for damages resulting from the
above. The risk shall be borne by the plant operator alone.
Use of any other supplied media requires the approval of STULZ.
The system may only be used in accordance with the technical documentation from STULZ and the data
on the rating plate.
Thefollowingusesoftheunitareprohibited:
●Use of the unit outdoors.
●Use of the unit in potentially explosive atmospheres.
●Use of the unit in ventilation systems.
●Useoftheunitwithouttreateddrinkingwaterofthespeciedquality.
●Use of the unit under water.
●Use of the unit with media other than those approved by STULZ.
●Use of the unit outside the application limits.

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STULZUltraSonic-SystemforDirectRoomHumidicationBNB-  Safety
CAUTION
Risk of injury from rotating parts.
Touching rotating parts carries a direct risk of injury due from mechanical forces.
The STULZ UltraSonicBNBultrasonichumidier may only be installed, connected and started up by
specialist engineers.
●Before any repairs and maintenance work, always switch off the power supply to the system and
the unit, and secure so they cannot be switched back on for the duration of the work.
CAUTION
General risks of injury.
• Make sure that all persons and specialist engineers wear the appropriate protective equipment
(gloves,helmet,safetygoggles)fortheirwork.
• Make sure that all transport, storage, installation, start-up, maintenance and disposal work is
performedsolelybyappropriatelyqualiedspecialistpersonnel.Thequalicationrequirementsfor
specialist personnel are listed in section "2.3.Qualicationrequirementsforpersonnel"onpage
10.
• Makesurethattheunitisonlyopenedbyqualiedspecialistpersonnel.
• Make sure that applicable documents are observed during transport, storage, installation, start-up,
maintenance and disposal. Other applicable documents are listed in section "2.5. Other applicable
documents" on page 11.
• Units must be stationary and switched off before any work is carried out. The unit must be discon-
nectedfromthemainspowerforanymaintenanceworkandawarningsignafxedtopreventit
from being inadvertently switched on. Before restarting, the preparatory measures in the Installa-
tion/Start-up section must be carried out.
• TheunitsmayonlybeconvertedormodiedfollowingconsultationwithSTULZGmbH.Genuine
spare parts and parts/accessories approved by STULZ GmbH are a guarantee of safety.
• Never operate the system without the necessary protective covers.
• Before any work on the electrical installation, switch off the power supply to the unit and all con-
nected components and secure so they cannot be switched back on.
• The regulations from professional associations must be complied with.
CAUTION
Danger of death. Electric shock risk.
There is an immediate danger of death from electric shock if live parts are touched.
The STULZ UltraSonicBNBultrasonichumidier may only be installed, connected and started up by
specialist electricians.
●To change the settings of DIP switches or to remove the connections, always switch off the power
supply to the system and the unit, and secure so they cannot be switched back on for the duration
of the work.
WARNING
DANGER
2.2. Basic safety instructions

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CAUTION
Danger due to incorrectly congured components.
Duringinstallationandconguration,itmaybenecessarytoadditionallycongurefurthercomponents
for use with the STULZ UltraSonicBNBultrasonichumidier.
●Beforestart-up,alwayscheckthecurrentcongurationofallaffectedcomponents(referalsotothe
documentationoftherespectivecomponents).
NOTICE
2.3. Qualication requirements for personnel
All electrical work must be performed exclusively by authorized specialist electricians. Specialist person-
nel within the context of this documentation are persons who are familiar with the electrical installation,
start-up,maintenanceandrepairofthesystem,andareinpossessionofthefollowingqualications:
●Successful,certiedcompletionoftraininginelectricalengineering
●Familiarity with the technical documentation
All water installation work must be performed exclusively by authorized and trained specialist personnel.
Specialist personnel within the context of this documentation are persons who are familiar with the elec-
trical installation, start-up, maintenance and repair of the system, and are in possession of the following
qualications:
●Instruction by an expert
●Familiarity with the technical documentation
All work relating to transport, storage and operation must be performed exclusively by persons
who have received instruction in such work.
The plant operator must ensure that all maintenance, inspection and installation work is performed
byauthorizedandqualiedspecialistpersonnelwhohavebeenbriefedbythoroughly
studying the technical documentation.
2.4. Compatible products
The STULZ UltraSonicBNBultrasonichumidieriscompatiblewiththefollowingSTULZproducts:
●STULZ ion exchanger SD 2800
●STULZ UltraWater reverse osmosis system
●STULZ conductivity measuring kit
●STULZ USM control cabinets USM 503, USM 1303, USS 503, USS 1303
●STULZ ON/OFF electronic control module

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STULZUltraSonic-SystemforDirectRoomHumidicationBNB-  Safety
2.5. Other applicable documents
Besidesthistechnicaldocumentation,thefollowingdocumentsmustalsobeobserved:
●Circuit diagrams of the control system used
●Technical documentation of the control system used
●Technical documentation of the measurement equipment used
●Technical documentation of other accessories
●Technical documentation of the water treatment equipment used
●STULZ Ultrasonic Planning Guide
●Certicates:
-Expertstatement"SpreadingofLegionellapneumophilainultrasonichumidiers"
-Certicate"HygienicassessmentofultrasonichumidiersintheUltraSonicseries"
- CE Declaration
2.6. Transport and storage
Check the delivery immediately on receipt for completeness and transport damage. Notify your specialist
retailer of any transport damage immediately. Do not install or operate the unit if there is evidence of
transport damage which may jeopardize the unit's operating safety.
The unit is packaged in a cardboard box. Open the box carefully to prevent damage to the unit's surface.
If the unit is to be placed in interim storage after delivery, take the following precautions for protection
againstcorrosionanddamage:
●Store the unit in a dry location,
●Store the unit in its packaging if possible.
●Seal water connections with protective caps
Dispose of the packaging properly. To avoid the risk of asphyxiation, keep plastic packaging out of reach
of children and dispose of it after opening.
2.7. Installation
Wheninstallingtheunit,alwaysobservethenotesoninstallation(see"7. Installation" on page 33)and
thepowersupplyspecications(see"4.5. Technical data" on page 18).
The electrical installation and wiring must comply with the applicable local regulations, and the
specicationsoftheVDE(GermanAssociationforElectrical,Electronic&InformationTechnologies)and
the local mains grid operator.
2.8. Spare parts
We recommend the use of genuine spare parts. Genuine spare parts and spare parts/accessories ap-
proved by STULZ GmbH are a guarantee of safety.
The spare parts list can be found in the following section:"13. Spare parts lists" on page 91. To order
spare parts, call the hotline or your specialist retailer.

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Product package   STULZUltraSonic-SystemforDirectRoomHumidicationBNB-
Noise Filter \2,700
ZAC2210-00U
Not
available
45 ﾉｲｽﾞﾌｨﾙﾀｰ ZAC2210-00U
STE045
M25121
Ring and Nut for \560
Tube (10sets)
46 ﾘﾝｸﾞﾅｯﾄｾｯﾄ（ﾒｯｷ付）
STE046
47
48
6mm I.D.
6/6
(Example:BNB2000A)
CAUTION
Item numbers.
The item numbers stated here are based on section "13. Spare parts lists" on page 91 in this
manual.
Note
3. Product package
●STULZ UltraSonicBNBultrasonichumidier
●Quick-start Guide to STULZ UltraSonicBNBultrasonichumidier
The Technical Manual and Start-up Report of the STULZ UltraSonic
BNBultrasonichumidierareavailabletodownloadfrome-STULZ:
www.stulz.de/en/e-stulz
Illustration Description Item
BNB 1000 A - 8000 A ---
STULZ UltraSonic BNB Quick-start Guide ---
Threaded joint for stainless steel tube
Connection 6 mm 1 x item 51
2-way main cable
BNB 1000 A - 4000 A 1 x item 17
4-way main cable
BNB 5000 A - 8000 A 1 x item 18
6-way main cable
BNB 1000 A - 8000 A 1 x item 19
Connector
for PE plastic tube 1 x item 53
SCHNELLSTARTANLEITUNG
CompTrol Interface III k
VERSION 06.2015 | 1000647 | DE
Kurzinstallationsanleitung
STULZ UltraSonic Ultraschallbefeuchter
System zur Direktraumbefeuchtung BNB
BNB 1000 A BNB 4000 A
BNB 2000 A BNB 5000 A
BNB 3000 A BNB 8000 A
Version06-2015 Art.Nr. 1000659 DE
Quick-start Guide
STULZ UltraSonic Humidifier
System for Direct Room Humidification BNB
BNB 1000 A BNB 4000 A
BNB 2000 A BNB 5000 A
BNB 3000 A BNB 8000 A
Version06-2015 Item No. 1000659 EN

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STULZUltraSonic-SystemforDirectRoomHumidicationBNB-  Productpackage
3.1. Optional accessories
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8
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© STULZ GmbH, Hamburg
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1.3 Lieferumfang
Wasserhahn 12 Liter Wasserspeicher Gehäuseschüssel
Ventil
Zuleitung
Drainageanschluss /
Abflussventil Brauchwasser
Wasseranschlussadapter
Kugelventil
Wasserspeicher
UV-RöhreVerbindungsschlauch
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3.2 Stadtwasseranschluss
Wasseranschlussadapter Zuleitungsventil
Der zum Lieferumfang gehörende Stadtwasseranschluss besteht aus einem Wasseranschlussadapter
½" AG x ½" IG und einem Ventil für die Zuleitung zur Umkehr-Osmose-Anlage mit einem ¼" x ¼" Gewinde.
Beim Zusammenbau des Stadtwasseranschlusses werden um das Außengewinde des Zuleitungsventils
3 bis 4 Lagen Teflonband gewickelt und dieses dann seitlich in den Wasseranschlussadapter geschraubt.
Verbindung zur Umkehr-Osmose-Anlage
Zuleitungsventil
Anschluss an das Anschluss des vorhandenen
Stadtwasser Wasserhahns
Ø
25
Abwasser
Trinkwasser
Abwasser
Systemskizze für Ultrasonic BNB1000A - BNB8000A mit proportionaler Steuerung
Spannungsversorgung
230V/50-60Hz/1Ph
Spannungsversorgung
230V/50-60Hz/1Ph
Abwasser
Trinkwasser
Abwasser
Systemskizze für Ultrasonic BNB1000A - BNB8000A mit proportionaler Steuerung
Spannungsversorgung
230V/50-60Hz/1Ph
Spannungsversorgung
230V/50-60Hz/1Ph
Illustration Description K-number
SD 2800 ion exchanger K87054
STULZ UltraWater reverse osmosis system
SUW 120
SUW 400
1200256
1200257
Conductivity measuring kit K85571
USM master/slave control cabinet
USM503
USM1303
USS503
USS1303
K87550
K87552
K87551
K87553
Electronic ON/OFF control module
BNB 1000 A - BNB 3000 A K85009
Wall bracket K87033
BNB safety tray
BNB 1000 A + 2000 A
BNB 3000 A + 4000 A
BNB 5000 A + 6000 A
1200035
1200036
1200037
Stop cock K87624
Flush valve
NC/48V AC
NO/230V AC
K87061
K87084
Stainless steel tube by the meter
PE plastic tube by the meter
K87059
K87060

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Product description   STULZUltraSonic-SystemforDirectRoomHumidicationBNB-
The STULZ UltraSonic BNB model series is designed
fordirectroomhumidicationusing
ultrasonic atomization. Here, an transducer installed in
a water bath produces a cold mist, which is expelled
out of the unit into the room by an integrated fan.
4. Product description
4.1. Sizes
TheSTULZUltraSonicBNBmodelseriesisavailablewithdifferenthumidiercapacities:
•BNB1000A (Itemno.:K87011)
•BNB2000A (Itemno.:K87013)
•BNB3000A (Itemno.:K87014)
•BNB4000A (Itemno.:K87015)
•BNB5000A (Itemno.:K87016)
•BNB8000A (Itemno.:K87017)
Technicalfeatures:
•1-8l/hhumidiercapacity
• 2-16 integrated transducers
• 72-396 m3/h airowvolume
• Integrated fan
•StainlesssteelhousingWNr.1.4301(X5CrNi18-20)+WNr.1.4106(X2CrNi19-11)
CAUTION
Adiabatic behavior.
STULZUltraSonichumidiersatomizethewaterinminusculedroplets(<0.001mm).Themist(aero-
sols)producedinthiswaydrawsheatfromthesurroundingair(enthalpy)andchangesitsstatefromu-
idtoaqueous.This"adiabatic"behavior(removalofheatfromsurroundingair)coolstheairintheroom.
Note
CAUTION
Property damage due to an incorrect water supply.
Theultrasonichumidierisoperatedwithdemineralizeddrinkingwater,toensurethatthetransducers
retain their function throughout the unit's service life. Furthermore, if the mineral content of the water is
too high for the planned application, this may lead to the formation of deposits in the humidified room.
●Check the mineral content and conductivity of the drinking water to prevent damage to property!
NOTICE

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STULZUltraSonic-SystemforDirectRoomHumidicationBNB-  Productdescription
4.2. Rating plate
TheratingplatecontainsthemostimportantdataforidenticationoftheSTULZ UltraSonic BNB ultrasonic
humidierandabouttheapplicationlimits.Theratingplateisafxedtothesideofthehumidier.
Thedataontheratingplatearerequiredforthefollowing:
●SafeuseoftheSTULZUltraSonicBNBultrasonichumidier
●When phoning the STULZ hotline with questions
Theratingplatemustbepermanentlyafxedtothehumidier.
Model
Example
rating plate
Manufacturer's
address
STULZGmbHKlimatechnik22457HamburgTel:+49(0)4055850
Typ BNB 1000 A Aufnahmeleistung/
power consumption 100 W
Leistung/
capacity 1,0 l/h Spannung/ power supply 48 V~

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Product description   STULZUltraSonic-SystemforDirectRoomHumidicationBNB-
4.3. Description of unit
UnitsintheUltraSonicBNBmodelseries1000AtoBNB8000Aaredirectroomhumidiersthatwork
on the principle of ultrasonic atomization of demineralized drinking water. The principal components of
this device are made from stainless steel or high-grade plastic. A fan integrated in the housing distributes
thecoldmist,whichisgeneratedinthewatertank,aroundtheroom.Thehumidierisfullyassembled,
internally wired and leak tested at the factory, where it also undergoes testing under standard operating
conditions.
The polished stainless steel housing with removable stainless steel hood contains ultrasonic atomization
modules,asolenoidvalveandtwooatswitches.Theairintakefeaturesamaintenance-friendlyinsert
withstainlesssteelguiderails,inwhichawashabledustlterisinserted.
ThecompactUltraSonicatomizationmoduleismountedontheoorofthewatertank.Toincreaseop-
erationalreliability,eachtransducerhasitsownelectronics,consistingofarectier,vibrationcircuitand
transistoramplier.Theultrasonicvibrationsproducedinthiswayareaimedatthesurfaceofthewater,
which is then atomized.
Thefandistributesthemistproducedinthewatertankaroundtheroom.Avariableairowisgenerated,
to ensure that the aerosols dissipate rapidly.
Topreventlargerdropletsintheairow,themistisblownoutbyspeciallyshapedmistguidetubes,con-
taining a droplet strainer and featuring a soft plastic wiper ring at the outlet. The unit has an air bypass as
standard, which allows mechanical calibration of the effective humidifying output.
Waterissuppliedbyaninletvalvewithanintegratedstainlesssteellterstrainer,whichisprotected
against overheating if it were to run dry. The water level is controlled by hermetically sealed, dust-insen-
sitivemagneticoatswitches,whichadditionallymonitorunwanteddryrunning.
To achieve optimum atomization, the water level in the tank must be kept as constant as possible. In
additiontotheoatswitches,thesolenoidvalvealsoassistswithautomatedmonitoringofthewatersup-
ply.Ifthewaterinthetankfallsbelowthenormallevel,theupperoatswitchswitchesandthesolenoid
valve opens the water supply to the tank. Once the normal water level is reached, the solenoid valve is
closed once more.
Operatingthehumidierwithaninadequatewaterleveldamagesthetransducers.Topreventthis,the
loweroatswitchswitchesandoperatesarelayinthecontrolcabinet,whichturnsoffthepowersupply
totheunitifthewaterfallsbelowthesafetylevel:
Inaddition,athermostatswitchesthepoweroffifthetemperatureintheultrasonichumidierrisesabove
a preset threshold. Varistors are installed to protect the electronics from voltage peaks.
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Product description  STULZUltraSonic-SystemforDirectRoomHumidicationBNB-
4.3. Description of unit
UnitsintheUltraSonicBNBmodelseries1000AtoBNB8000Aaredirectroomhumidiersthatwork
on the principle of ultrasonic atomization of demineralized drinking water. The principal components of
this device are made from stainless steel or high-grade plastic. A fan integrated in the housing distributes
thecoldmist,whichisgeneratedinthewatertank,aroundtheroom.Thehumidierisfullyassembled,
internally wired and leak tested at the factory, where it also undergoes testing under standard operating
conditions.
The polished stainless steel housing with removable stainless steel hood contains ultrasonic atomization
modules,asolenoidvalveandtwooatswitches.Theairintakefeaturesamaintenance-friendlyinsert
withstainlesssteelguiderails,inwhichawashabledustlterisinserted.
ThecompactUltraSonicatomizationmoduleismountedontheoorofthewatertank.Toincrease
operationalreliability,eachoscillatorhasitsownelectronics,consistingofarectier,vibrationcircuitand
transistoramplier.Theultrasonicvibrationsproducedinthiswayareaimedatthesurfaceofthewater,
which is then atomized.
Thefandistributesthemistproducedinthewatertankaroundtheroom.Avariableairowisgenerated,
to ensure that the aerosols dissipate rapidly.
Topreventlargerdropletsintheairow,themistisblownoutbyspeciallyshapedmistguidepipes,con-
taining a droplet strainer and featuring a soft plastic wiper ring at the outlet. The unit has an air bypass as
standard, which allows mechanical calibration of the effective humidifying output.
Waterissuppliedbyaninletvalvewithanintegratedstainlesssteellterstrainer,whichisprotected
against overheating if it were to run dry. The water level is controlled by hermetically sealed, dust-insen-
sitivemagneticoatswitches,whichadditionallymonitorunwanteddryrunning.
To achieve optimum atomization, the water level in the tank must be kept as constant as possible. In
additiontotheoatswitches,thesolenoidvalvealsoassistswithautomatedmonitoringofthewatersup-
ply.Ifthewaterinthetankfallsbelowthenormallevel,theupperoatswitchswitchesandthesolenoid
valve opens the water supply to the tank. Once the normal water level is reached, the solenoid valve is
closed once more.
Operatingthehumidierwithaninadequatewaterleveldamagestheoscillators.Topreventthis,the
loweroatswitchswitchesandoperatesarelayinthecontrolcabinet,whichturnsoffthepowersupply
totheunitifthewaterfallsbelowthesafetylevel:
Inaddition,athermostatswitchesthepoweroffifthetemperatureintheultrasonichumidierrisesabove
a preset threshold. Varistors are installed to protect the electronics from voltage peaks.
Schwimmerschalter Wasserversorgung, BNB
Befindet sich der Magnetring im Schwimmer in der unteren Position bleibt
der Schalter geöffnet.
Befindet sich der Magnetring im Schwimmer in der oberen Position wird der
Schalter geschlossen und somit die Stromversorgung des Magnetventils
und damit die Wasserversorgung hergestellt.
Normal operation for BNB
Water level
ON status OFF status
Magnetic ring
Switch
The magnetic ring
opens the switch
to cut off the
power supply
OFF Status
Magnetring
Schalter
Der Magnetring hält den
Schalter in geöffneter
Position, so dass das
Magnetventil nicht
einschaltet und die
Wasserversorgung
unterbrochen bleibt.
Float
Fehlfunktion bei Vertauschen
Water supply
Keine Wasserversorgung

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STULZUltraSonic-SystemforDirectRoomHumidicationBNB-  Productdescription
4.4. Operating principle of ultrasonic humidi cation
UltrasonichumidiersfromtheSTULZUltraSonicmodelseriesworkontheprincipleofultrasonic atom-
ization.A48Valternatingvoltageisrectiedonannebulizer print plate and converted into a high-fre-
quency signal of 1.65 MHz. This signal is transferred to an transducer installed in the water bath, which
converts it into a high-frequency mechanical oscillation. The integrated transducers are referred to as
thickness transducers, which change their thickness 1.65 million times a second in line with the applied
signal of 1.65 MHz.
The surface of the transducer
(1)vibratesatsuchhighspeed
thatthewater(2)cannolonger
follow the movement due to its
inertia. This produces a column
ofwater(3)abovethetrans-
ducers as soon as the unit is
switched on.
Because the water is unable to
follow the faster movement of
the transducer, a momentary
vacuum occurs during the nega-
tive amplitude of the transducer.
Cavitation gives rise to bubbles,
which are "catapulted" to the
edge of the water column during
the positive amplitude, where
they knock into one another with
great force. During this process,
extremelynewaterparticles(4)
are atomized at the edge of the
watercolumn(3).Furthermore,
as the sonic waves are concen-
trated just below the surface
of the water, cross waves are
produced. In the center of these,
minusculewaterdroplets(4)
break down to form a mist that
is immediately assimilated in the
airow.
1
2
3
4

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Product description   STULZUltraSonic-SystemforDirectRoomHumidicationBNB-
4.5. Technical data
TheSTULZUltraSonicBNBultrasonichumidierworksontheprincipleofultrasonicatomization.Afan
blows the mist, which was produced in a water tank with the aid of an transducer, into the room to hu-
midifyit.Theultrasonichumidierconsistsoftheatomizationmodules,thesupplymodulewithsolenoid
valvethatletsinthewatersupply,oatswitchesandahousingaccommodatingafan.Aswitchgearcab-
inet must be installed externally, which will house the open and closed-loop control systems and power
supply for the unit.
Model (BNB) 1000 A 2000 A 3000 A 4000 A 5000 A 8000 A
Capacity*(l/h) 1.0 2.0 3.0 4.0 5.0 8.0
Number of transducers 2 4 6 8 10 16
Operatingvoltage(VAC) 48 48 48 48 48 48
Ratedpower(W) 100 180 250 340 430 670
Emptyweight(kg) 7.1 9.3 11.2 14.0 16.1 23.0
DimensionsHxWxD(mm) 255x254x200 255x364x200 255x474x200 255x584x200 255x694x200 255x1024x200
DimensionA(mm)** 254 364 474 584 694 1024
DimensionP(mm)** 220 230 440 550 660 990
Fanairowvolume(m3/h) 72 108 144 216 252 396
Number of fans 1 1 1 2 2 3
Flushingwatervolume(l)*** 3.4 3.4 3.4 3.4 3.4 3.4
Noiselevel(dB) 43 49 50 51 52 54
Open-loop/closed loop control
Humidity measurement with set-
point/actual value comparison
USM / USS
503
USM / USS
503
USM / USS
503
USM / USS
503
USM / USS
1303
USM / USS
1303
ON/OFF accessory set 1)4) Set 11 Set 5 Set 5 Set 6 Set 7 Set 4
Proportional accessory set 1)5) Set 22 Set 18 Set 18 Set 19 Set 20 Set 17
ON/OFF control module with
"ON/OFF" time relay 2)4)
max. 2x max. 1x max. 1x --- --- ---
* Capacity at a water level of 40 mm, air temperature of 26°C, water temperature of 26°C and voltage of 48 V.
Operatingconditions:Ambienttemperature8°Cto40°C,relativehumiditylessthan90%.
Watersupply: Onlydemineralizeddrinkingwater<80μS/cmmaybesuppliedtotheultrasonichumidier.
Thewaterpressuretotheultrasonichumidiermustbebetween0.5barand6bar,thewatertemperature
between 8°C and 40°C.
** See drawing "4.6. Dimensional drawing" on page 19
*** When connected to a STULZ USM control cabinet and using factory settings.
1) For installing in an on-site switch gear cabinet
2)Uptohumidiercapacityof3l/h
Selecting the required open-loop/closed-loop control system
Required control Type of control Possible components
3) Humidity measurement with
actual value/setpoint comparison
Proportional control USM/USS controller
5) External control with
control signal 0-10V DC / 0-1V DC
Proportional control USM/USS controller or
proportional control accessory set1)
4) External control with
remote ON/OFF contact
ON/OFF control USM/USS controller or
ON/OFF control accessory set1)
or ON/OFF control module2)
Please refer to our STULZ UltraSonic control manual for more information.
Visit our e-stulz page on the internet at www.stulz.de/en/e-stulz.
Here you can also download our manuals.

© STULZ GmbH, Hamburg EN / 10-2015 / 1000683
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STULZUltraSonic-SystemforDirectRoomHumidicationBNB-  Productdescription
4.6. Dimensional drawing
All dimensions in mm.
57
/
CAUTION
Precon gured lines.
Bearinmindthedimensionsofthepreconguredlinesforyourunitsize.
See "7.5. Electrical connection" on page 49.
Note
Key
Item Description Item Description
1Ultrasonichumidier 10 Safetyoverow
2Fan housing 11 Mist guide tube
3 Mist guide cover 12 Ring and nut
4─13 Installation foot
5Metal connector 14 Airlter
6Cable 15 Water supply *
7Metal connector 16 Stop cock *
8Cable 17 Air damper control
9Water drain 18 Wallbracket(optional)
A:Unitwidth
P:Holespacingforthreadedjoint
* Provided by plant operator

EN / 10-2015 / 1000683 © STULZ GmbH, Hamburg
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Product description   STULZUltraSonic-SystemforDirectRoomHumidicationBNB-
Permitted materials for demineralized water
Permitted material Maximum temperature
Stainlesssteel(1.4571) >100°C
PE(polyethylene) 60°C
PP(polypropylene) >100°C
PVDF(polyvinylideneuoride) >100°C
PA(polyamide) 60°C
4.7. Application limits
DuringtheplanningandinstallationofUltraSonichumidiers,takecaretoensurethatallmaterialsthat
come into contact with demineralized water are resistant to it. See table at bottom of page for the most
important materials.
Application limits
Water quality <80μS/cm,upto150μS/cmforbriefperiods
Supply voltage to control unit 230 V ± 10%
Voltagetoultrasonichumidier 48 V ± 10%
Water pressure 0.5barto6barupstreamofultrasonichumidier
Water temperature 8°C to 40°C
Air humidity ≤90%RH
*Forindividualoperatinghours,e.g.duringstart-uporduringthedeliverytimeofnewltercartridges.
No longer than 5% of operating hours in total. Also see "4.9. Water treatment" on page 22.
CAUTION
Reducing conductivity.
Depending on the planned application, it may make sense to further reduce conductivity.
This must be done by the plant operator.
Note
CAUTION
High dust content.
Iftheairhasanunusuallyhighdustcontent(e.g.siliconpowderinprintingpresses),the
airmustbeltered,becausedepositsofdustonthewaterreducethecapacityofthehumidier.
Theairlterisnotincludedwithdelivery,andneedstobeprovidedbytheplantoperator.
Note
CAUTION
Quality of drinking water.
The conductivity of the treated water may vary depending on the quality of the available drinking
water.
Note
CAUTION
Room temperature below 0°C.
Thehumidiermustnotbeusediftheroomtemperaturedropsbelow0°C.
●Drain the water tank of the units.
NOTICE
CAUTION
Resistant materials.
Theconnectionbetweenthedemineralizationsystemandthehumidiermustconsistofamaterialthat
is resistant to demineralized water.
• PEorstainlesssteel(1.4571)
NOTICE