BOGA AIRWIN Ultrasonic Duct Humidifier Instruction Manual Product Information
- May 15, 2024
- BOGA
Table of Contents
AIRWIN Ultrasonic Duct Humidifier
“`html
Product Information
Specifications
-
Type: Ultrasonic Duct Humidifier
-
Model Numbers:
-
NKBD-6/3.1 – Item No. 7900107, 6 outlets, max. capacity 3.6
kg/h -
NKBD-12/3.1 – Item No. 7900113, 12 outlets, max. capacity 7.2
kg/h -
NKBD-18/3.1 – Item No. 7900119, 18 outlets, max. capacity 10.8
kg/h -
NKBD-24/3.1 – Item No. 7900125, 24 outlets, max. capacity 14.4
kg/h -
NKBD-30/3.1 – Item No. 7900131, 30 outlets, max. capacity 18.0
kg/h -
NKBD-36/3.1 – Item No. 7900137, 36 outlets, max. capacity 21.6
kg/h -
NKBD-42/3.1 – Item No. 7900143, 42 outlets, max. capacity 25.2
kg/h
-
Product Usage Instructions
1. General Information and Intended Use
Ensure the product is used for its intended purpose as a duct
humidifier.
2. Safety Instructions
Follow all safety instructions provided in the manual to prevent
any accidents or damage.
3. Scope of Delivery
Check that all components specified in the scope of delivery
section are present before installation.
FAQ
Q: What should I do if the humidifier is not producing enough
mist?
A: Check the water level in the humidifier tank and ensure it is
filled to the recommended level. Also, clean the ultrasonic
transducer to remove any buildup that may be affecting mist
production.
“`
Installation- and Operation Instructions
AIRWIN®
Ultrasonic Duct Humidifier
NKBD-6…42/3.1
Type
Item No. Description
NKBD-6/3.1 7900107 Duct humidifier with 6 outlets
NKBD-12/3.1 7900113 Duct humidifier with 12 outlets
NKBD-18/3.1 7900119 Duct humidifier with 18 outlets
NKBD-24/3.1 7900125 Duct humidifier with 24 outlets
NKBD-30/3.1 7900131 Duct humidifier with 30 outlets
NKBD-36/3.1 7900137 Duct humidifier with 36 outlets
NKBD-42/3.1 7900143 Duct humidifier with 42 outlets
max. capacity 3.6 kg/h 7.2 kg/h
10.8 kg/h 14.4 kg/h 18.0 kg/h 21.6 kg/h 25.2 kg/h
Please read and keep these instructions!
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
8valid from serial number: 5463
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
Contents
1. General Informations and Intended Use……………………………………………………………………………………………… 4
2. Safety Instructions …………………………………………………………………………………………………………………………… 4
3. Scope of delivery …………………………………………………………………………………………………………………………….. 5
4. Optional accessories ……………………………………………………………………………………………………………………….. 5
5. General information …………………………………………………………………………………………………………………………. 7
5.1
Technical terms …………………………………………………………………………………………………………………. 7
5.2
Physical principles of piezo ceramics……………………………………………………………………………………. 7
5.3
Funktionsbeschreibung Ultraschall-Luftbefeuchter …………………………………………………………………. 8
6. Advantages of ultrasonic air humidification …………………………………………………………………………………………. 9
7. Equipment overview ………………………………………………………………………………………………………………………. 10
8. The NKBD-6…42/3.1-System …………………………………………………………………………………………………………. 11
9. Installation…………………………………………………………………………………………………………………………………….. 12
9.1
Installation conditions General notes ……………………………………………………………………………….. 12
9.2
Installation conditions special notes…………………………………………………………………………………. 13
9.2.1 Standard configuration………………………………………………………………………………………… 13
9.2.2 Stepped configuration …………………………………………………………………………………………. 14
9.3
Suction operation …………………………………………………………………………………………………………….. 15
9.4
Recommended settings of the airflow …………………………………………………………………………………. 16
9.4.1 Folded sheet and extension on the body duct support …………………………………………….. 16
9.4.2 Closing sheet on the tank cover …………………………………………………………………………… 16
9.5
Adjustment of the NKBD to the direction of airflow ……………………………………………………………….. 17
10. Hydraulic connection ……………………………………………………………………………………………………………………… 18
10.1 Hydraulic conditions …………………………………………………………………………………………………………. 18
10.2 Establishing and detaching the connections with connectors …………………………………………………. 19
11. Electrical Connection ……………………………………………………………………………………………………………………… 20
11.1 Transformer …………………………………………………………………………………………………………………….. 20
11.2 Humidifier ……………………………………………………………………………………………………………………….. 21
11.2.1 Power connection ………………………………………………………………………………………………. 21
11.2.2 Control connection ……………………………………………………………………………………………… 21
11.2.3 Modbus RTU-Interface………………………………………………………………………………………… 22
11.2.4 Safety chain ………………………………………………………………………………………………………. 22
11.2.5 Status Message Operation – Error ………………………………………………………………………… 22
11.2.6 Control signal …………………………………………………………………………………………………….. 23
11.2.7 Operation control continuous ……………………………………………………………………………….. 23
11.2.8 Control via Modbus RTU……………………………………………………………………………………… 23
12. Structure and functions of the control board PCB AIRWIN 3.1 …………………………………………………………….. 24
12.1 Connections ……………………………………………………………………………………………………………………. 24
12.2 Functional description of the control functions ……………………………………………………………………… 26
12.3 Default settings………………………………………………………………………………………………………………… 27
2
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
12.4 Adjustment options PCB AIRWIN 3.1 …………………………………………………………………………………..28
12.5 State diagram……………………………………………………………………………………………………………………30 12.6 Status
Message ………………………………………………………………………………………………………………..31 12.7 LED-Indicator and
Decoding……………………………………………………………………………………………….31 12.8 Resetting the maintenance
interval ……………………………………………………………………………………..32 12.9 Troubleshooting
………………………………………………………………………………………………………………..33 13. AquaDrain plus hygiene
management …………………………………………………………………………………………….34 13.1 Description
……………………………………………………………………………………………………………………….34 13.2 Features
…………………………………………………………………………………………………………………………..35
13.2.1 Flushing of water supply line …………………………………………………………………………………35 13.2.2
Drainage of fluid tank……………………………………………………………………………………………37 13.3 AquaDrain
plus diagrams……………………………………………………………………………………………………38 14. Dimensioning of
cable cross section ………………………………………………………………………………………………….39 15. Commissioning
……………………………………………………………………………………………………………………………….42 15.1 Manual functions:
………………………………………………………………………………………………………………42 15.2 Automatic
functions:…………………………………………………………………………………………………………..43 15.3 Make applied
settings: ……………………………………………………………………………………………………….43 16. Technical
Data………………………………………………………………………………………………………………………………..44 17. Device dimensions
/ weights …………………………………………………………………………………………………………….45 18. Circuit
diagrams………………………………………………………………………………………………………………………………46 19. Care
………………………………………………………………………………………………………………………………………………56 20. Standards
………………………………………………………………………………………………………………………………………58 20.1 EC declaration of
conformity according to Machinery directive 2006/42/EC, Annex II 1.A …………..58
20.2 WEEE………………………………………………………………………………………………………………………………58 20.3 Imprint –
Copyright……………………………………………………………………………………………………………..58 21. List of figures
………………………………………………………………………………………………………………………………….59 List of
tables…………………………………………………………………………………………………………………………………………….60
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
3
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
1. General Informations and Intended Use
The device is designed exclusively for the humidification of demineralised
water according to the technical specifications. Nebulization of other liquids
is not permitted.
All AIRWIN ultrasonic duct humidifiers of NKBD-6…42/3.1 series are designed
for installation in air handling units.
The power supply must be 48 V-AC. Operation with a different voltage is not
permitted and can lead to a defect of the device.
These installation and operation instructions apply to all AIRWIN® ultrasonic
duct humidifiers of NKBD6…42/3.1 series, hereafter referred to as humidifier.
It contains important notes for professional installation, start-up, trouble-
free operation and proper maintenance and cleaning.
In addition to regular maintenance, proper installation and care of the
humidifier help to preserve the value of the device and are conditions for
warranty claims.
2. Safety Instructions
The humidifier described in this manual is designed and constructed in
accordance with the international safety regulations. Like any other
electrical device it has to be handled with care, to ensure safe usage.
In order to guarantee safe operation in all operating conditions, the
following safety instructions must be observed.
· The electrical system may only be set up by qualified electricians. In this
context, the regulations of DIN VDE series 0100 are fundamental.
· The regulations of the local power supplier concerning the electrical
connection (e.g.: residual current circuit breaker, additional potential
equalisation etc.) must be complied with.
· An intended choice of electrical cables and connectors must be used.
· Mains voltage and mains frequency of the voltage supply must correspond to
the parameters indicated on the identification plate of the humidifier.
· Do not connect a damaged humidifier (e.g.: damaged during transport) to the
mains.
· Contact your customer service if you have any queries about the electrical
connection, the features or the security of the humidifier.
· Disconnect the humidifier from mains, if it does not work perfectly or if
damage has occurred.
· Disconnect the humidifier from mains, if the electrical supply line is
damaged.
· Work on the humidifier may only be carried out as described in these
instructions.
· Never use high pressure cleaners to clean the humidifier.
· Use grease and oil-free materials only.
4
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
3. Scope of delivery
Duct Humidifier NKBD-6…42/3.1
Installation and operating instructions
Spare part list
Fig. NKBD-30/3.1
Stop cock Ø 10 mm
Straight reducing connection Ø10 mm Ø6 mm
Item No. 0002602
Item No. 0002362
4. Optional accessories
Item no. Type
Description
Tube, PA 0001196 D/d=10/8 mm,
blue
Tube water supply D = 10 mm (blue)
Illustration
Tube, PE 0001847 D/d=14/11 mm,
nature
Tube water drainage D = 14 mm (nature)
2000105 Mounting brackets 200140.. Vertical frame
For easy installation of NKBD on a mounting frame in the air duct, made of
V2A-stainless steel, incl. adjustable foot. Needs: 2 pcs for NKBD-6 to NKBD-24
3 pcs for NKBD-30 to NKBD-42
To build a mounting frame in the air duct, made of V2A-stainless steel, height
adjustable from 500-700 mm or 700-1200 mm or 1200-2000 mm PU = 1 set (2 pcs)
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
5
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
Item no. Type 200141.. Telescopic strut
6100097 BO-80
Description
To build a mounting frame in the air duct, made of V2A-stainless steel, length
adjustable from 500-800 mm or 800-1400 mm or 1400-2000 mm PU = 1 set (2 pcs)
Illustration
Duct hygrostat for ON/OFF control of the humidification system, 1-step
6100095 BO-80/2
Duct hygrostat for ON/OFF control of the humidification system, 2-step
77001.. ST500 ST1600
Transformer for control cabinet installation, from 500 VA to 1600 VA, with primary and secondary protection
77002..
STH500 STH1600
Transformer in powdered steel housing, with illuminated ON / OFF switch and cable glands from 500 VA to 1600 VA, with primary and secondary protection
6002100 SUR/P-4b
Control cabinet with room humidity sensor or duct humidity sensor for continuous control
60121.. SUR/PT…
Control cabinet with room humidity sensor or duct humidity sensor for continuous control and 500, 1000 or 1600 VA Transformer
8005.. BO-RO-…
Reverse osmosis system 6 l/h and more, with permeate storage tank, other models on request
6
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
5. General information
5.1 Technical terms
Transducer
:
Aerosols
:
Demineralised water :
Concentrate
:
Piezo ceramic transducer
Finely distributed material (solids or liquids) in air or other gases,
manifestations are e.g.: in smoke, dust, vapour and nebula
Pure water, permeate
Concentrated water, waste water of reverse osmosis system
5.2 Physical principles of piezo ceramics
If certain crystals are deformed by mechanical stress, electrical charges will
build up proportionally on their surface, producing electric field strength in
the crystal.
This effect was discovered by Pierre and Jacques Curie in 1880. Even the reversal of this so-called piezoelectric effect or piezo-effect is possible. The same materials change their dimensions under the influence of an electric field.
Oscillation line – piezo ceramics
Fig. 1 – Schematic sketch of piezo-effect
Ceramic piezoelectric materials are hard, chemically inactive and completely insensitive to humidity or other atmospheric influences.
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
7
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
5.3 Funktionsbeschreibung Ultraschall-Luftbefeuchter
All frequencies above 20,000 Hz are called ultrasonic.
According to their physical nature, acoustic waves consist of mechanical
oscillations of compressible media. These oscillations develop due to the
deflection of the particles of a compressible material from their equilibrium
position. Acoustic waves are bound to a medium and thus do not occur in the
vacuum.
Oscillations develop as a result of a change in pressure. Repeated pressure
increase and pressure reduction produce different acoustic waves.
In order to be able to use ultrasonic waves for air humidification, electrical
energy must be converted into mechanical energy. This takes place in the
piezoelectric transducer.
A vibration unit consists of the resonance circuit where the high frequency of
~ 1.7 MHz is produced and the piezoelectric transducer to convert the
electrical frequency into a proportional mechanical oscillation. This
frequency is not audible for human beings or animals.
The piezoceramic transducers are attached to the bottom of the fluid tank. During excitation of the transducer, the water leads the ultrasonic vibrations to the boundary layer between water and air. Constant compression and decompression of the water gauge over the transducer causes cavitation in the immediate proximity of the water surface. Thus, crossing capillary waves are developed, the finest water particles of which, the aerosols, are produced in the wave crest.
Point of focusing Capillary waves
Air bubbles
Demineralised water
Fluid tank
Ultrasonic transducer
Fig. 2 – Schematic sketch aerosol production
The aerosols are delivered by the air flow in the humidifier and quickly mix with the ambient air. They have a small diameter (0.001 – 0.005 mm) and thus form a freely floating mist. The droplet diameter depends on the surface tension and the density of the medium, but also on the excitation frequency. The higher the excitation frequency, the smaller is the diameter of the droplets.
8
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
6. Advantages of ultrasonic air humidification
1. maximum energy saving
Compared to steam and infrared humidifiers with the same humidification output, ultrasonic air humidifiers need up to 93 % less electricity.
2. lowest connected load
Compared to electrode steam humidifiers with the same humidification output, only approx. 7 % of the power input is required. Thus, lower third-party connection costs are possible.
3. energy-saving cooling effect
During humidification with the ultrasonic air humidifiers, the room air is cooled at the same time due to the adiabatic humidification principle. The result is a lower heat load reducing the cooling output requirements.
4. lowest water consumption 5. immediate max. humidification
Nebulizer humidifiers lose up to 70 % of the water, steam humidifiers up to 30
%. AIRWIN® Ultrasonic air humidifiers do not have any water loss apart from
the cyclical emptying process of the fluid tank on AquaDrain plus.
Simultaneously with the request impulse, humidification is carried out without
any delay. Exception: during automatic drainage and line flushing.
6. max. evaporation of the water
Ultrasonic air humidifiers produce a very fine aerosol mist. On average, the diameter of the aerosols is only 0.001 0.005 mm. Thus, the mist spreads quickly and is taken up by the air after a very short time
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
9
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
7. Equipment overview
Outlets
Air baffle, height adjustable
Fig. 3 – Device overview NKBD-30/3.1
Power supply 48 V / 50 Hz
Interface for control signals
Demineralised water inlet Push-in-connection Ø 10 mm
Water overflow and drainage Push-in-connection Ø 14 mm
10
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
8. The NKBD-6…42/3.1-System
Fig. 4 – Schematic illustration of NKBD-12/3.1 air humidification system
Definitions 1. NKBD 2. Stop cock (included in the scope of delivery) 3.
Conductivity meter (e.g.: BO-CM-1) to check the quality of the demineralised
water (see optional accessories, REOS product range) 4. Reverse osmosis system
(see REOS product range) 5. Drinking water supply (on site) 6. Free discharge
according to DIN 1988-100 (on site) 7. External control (hygrostat or
continuous control signal – see AIRWIN product range) 8. Transformer (see
AIRWIN product range)
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
11
9. Installation
Proper installation in accordance with the following instructions will ensure
trouble-free operation of the humidifier.
The location of the humidifier installation is predetermined by the
requirements of the ventilation system and should be defined before
installation work starts.
The humidifier must not be exposed to large temperature differences during
installation as there is otherwise a danger of condensation inside the
humidifier which could lead to a failure of the integrated electronics.
Protect humidifier interiors necessarily from pollution! The protective foil
on the exhaust hoods should only be removed immediately prior to commissioning
when the air ducts have been cleaned!
9.1 Installation conditions General notes
· The place of installation must allow the humidifier to be easily removed and
replaced.
· The NKBD must be installed in absolutely horizontal position to ensure that
ALL the ultrasonic transducers are covered by the same level of water.
· The automatic drainage of the fluid tank and the automatic flushing of the
demineralised water line require a free discharge on site according to DIN
1988-100.
· In the immediate vicinity of the duct humidifier, the ventilation unit
should be of waterproof design (stainless steel or with corrosion-proof
coating) and should be provided with a water discharge outlet.
· The air velocity in the free duct cross section (net area after installation
of the humidifiers) V = 1.0 – 4.0 m/s.
· The distance from the bottom edge of the NKBD to the ceiling of the air duct
must be min. 390 mm (Fig. 5 and Fig. 7).
· The distance between the NKBD and the duct/trough base must be min. 100 mm
(Fig. 5 and Fig. 7).
· The distance between the NKBD control housing and the duct side wall must be
min. 70 mm (Fig. 6 und Fig. 8).
· The distance between the NKBD and the duct side wall must be min. 200 mm
(Fig. 6 and Fig. 8).
· Solid objects must not be installed within the humidification distance in
order to avoid condensation.
12
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
9.2 Installation conditions special notes
9.2.1 Standard configuration
Mounting example on mounting frame (on site) with mounting bracket NKBD (Item
no. 2000105).
Fig. 5 – Side view into an air duct with one NKBD
The humidifiers can be arranged directly one above the other. The vertical
distance between the humidifiers should be 140 mm.
Fig. 6 – View into an air duct in direction of air flow, two NKBD mounted one above the other
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
13
9.2.2 Stepped configuration
Humidifiers are mounted one above the other; offset horizontally (Fig. 7 and
Fig. 8). Mounting example on mounting frame (on site) with NKBD mounting
brackets (Item No. 2000105). Stepped configuration is necessary
· if the permissible air velocity would be exceeded on standard configuration
or · if more humidification is necessary than would be possible with the
standard
configuration. The minimum vertical distances are smaller than with the
standard configuration, which permits installation of more units and thus
increased humidification. Requirements: · With stepped configuration, the
vertical distance between several humidifiers must be 70 mm · The minimum
horizontal distance between several humidifiers must be 80 mm. · Several
humidifiers should be evenly distributed over the entire duct width, observing
the minimum distance of 200/100 mm from the duct walls.
Fig. 7 – Side view into an air duct with three NKBD
Fig. 8 – View into an air duct in direction of air flow, three NKBD mounted above each other
14
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
9.3 Suction operation
During suction operation is to ensure that the aerosol mist of the humidifiers
is not constricted by the suction of the fan! As may be the case fit a 50 %
perforated plate – consider pressure loss!
Fan
Fig. 9 – Side view NKBD in the air duct Suction opening
Suction opening constriction Fig. 10 – Top view NKBD in the air duct
Avoid constriction of the aerosol mist!
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
15
9.4 Recommended settings of the airflow
9.4.1 Folded sheet and extension on the body duct support
Set the folded sheet at the minimum distance to the body duct support for the
first setting.
Fig. 11 – Set folded sheet In addition, the extension is set at the maximum
distance to the folded sheet.
Fig. 12 – Set extension
9.4.2 Closing sheet on the tank cover
The air inlet slit is set to a minimum by the closing sheet.
Fig. 13 – Set closing sheet
Depending on the duct design and air velocity, these basic settings can be
modified to optimize the humidification capacity.
16
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
9.5 Adjustment of the NKBD to the direction of airflow
The NKBD can be adjusted to the flow direction of the duct air. Therefore, if required, the duct support must be rotated by 180° and the closing sheet must be mounted on the opposite side. This allows the humidifier to be situated in a favourable position for the water and electrical connection.
NKBD
direction of the air stream
duct support
180°
closing sheet Fig. 14 – Rotate duct support
direction of the air stream
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
17
10. Hydraulic connection
10.1 Hydraulic conditions
Fig. 15 – Schematic diagram of hydraulic conditions
Definitions 1. NKBD-12/3.1 2. Water overflow and discharge, for tube Ø 14 mm
3. Water supply for tube Ø 10 mm 4. Stop cock (included in the scope of
delivery) 5. Demineralised water: 1 bar < pressure 4 bar 5 µS/cm <
conductivity 20 µS/cm 6. Water demineralisation system (reverse osmosis
system) 7. Drinking water supply (on site) 8. Concentrate 9. Free discharge
according to DIN 1988-100 (on site)
Important notes:
· The humidifier may be operated with fully demineralised water only (produced
for example by a reverse osmosis system). The demineralised water must have a
conductivity of min. 5 µS/cm and max. 20 µS/cm.
· The contamination of drinking water may not exceed the max. values laid out
in the drinking water regulations
· The demineralised water is corrosive, therefore use stainless steel or
plastic only. Non-ferrous metals (e.g.: copper, brass) must not be used.
· Water pressure must be minimum 1 bar and maximum 4 bar.
· The drainage system on site must be set in accordance with DIN 1988-100.
· The water overflow- and discharge pipe must be laid with a constant slope of
min. 3% (3 cm on 1 m) to the free discharge.
· For easy revision, the stop cock included in the scope of delivery must be
installed in the demineralised water supply line close to the device.
All materials coming into contact with the demineralised water must be
resistant to demineralised water. Water pipes and tubes must be flushed prior
to starting the humidifier.
18
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
10.2 Establishing and detaching the connections with connectors
The connectors provide durable, safe and watertight connections between tube and connecting element. The tube is simply inserted by hand. The retaining element holds the tube safely without pressing it or decreasing the flow.
Establishing the connection Cut tube squarely and free of burrs. Make sure that the tube has no sharp edges, longitudinal grooves or other damage.
support element
stainless steel teeth
Fig. 16 – Establishing the connection
Connection is stable prior to sealing Insert the tube up to the stop. The
supporting element holds the tube in the connector. With the help of the
o-ring, a tight connection is established.
Check the connection by pulling towards the opposite side By pulling towards
the opposite side check whether the tube was safely inserted. Then slide on
the locking ring.
Detaching the connection First remove the locking ring. The tube can be
detached by pushing back the supporting element.
Fig. 17 – Insert tube
Slide on locking clip
Fig. 18 – Check connection
Remove locking clip press back support element remove tube press back support
element
Fig. 19 – Detaching the connection
All pipes, tubes and connecting elements must be resistant to demineralised
water.
The surface hardness of pipes and tubes must not exceed 225 HV. Otherwise the
retaining teeth in the connector do not securely hold on it.
Soft tubes are also to be avoided.
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
19
11. Electrical Connection
11.1 Transformer
· The transformers are available either loose or installed in a sheet metal
housing. When installing in the control cabinet, it is essential to make
allowance for the heat dissipated from the transformers. The control cabinet
may have to be provided with forced-air cooling.
· A single large transformer may be selected to serve several humidifiers. In
such cases, make sure that each outgoing secondary circuit is fuse-protected,
either external in the control cabinet or within the transformer ex- factory.
· The transformer transforms the primary voltage of 230 V / 50 Hz to the
secondary voltage of 48 / 53 V.
· The power connection cable leading to the transformer and from the
transformer to the humidifier must at least satisfy H05VV or H05RR
specifications.
· The transformers of BOGA are manufactured according to the following
specifications: Single-phase control-power transformer in accordance with VDE
0550 Parts 1+3 and VDE 0113, IP00, Protection Class 1, Insulation Class T40E,
separate windings, screw-connection in accordance with VBG4, 50/60 Hz.
Fig. 20 – Transformer with one secondary output
Fig. 21 – Transformer with multiple secondary outputs
The neutral conductor (N) on the secondary side must not be earthed!
20
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
11.2 Humidifier
The electrical connection of the humidifier is made for the electrical power
at the 48 V (L, N, PE) bushing terminals and for the regulation, control,
safety chain, status message and function control at the 14-pole plug
connector in the middle part of the control housing. The terminals are exposed
when you release the fasteners on the control housing cover and remove the
cover.
Control connection terminals
Power connection terminals
Fig. 22 – Electrical connections
Modbus RTU-Interface
11.2.1 Power connection
Tab. 11-1 – Assignment of power connection terminals
Connection
Name of terminal
L 48 V-AC
48
N 48 V-AC
N
PE
protective earth
11.2.2 Control connection
Tab. 11-2 – Assignment of control connection terminals
Contact Description
1 Safety chain 48 V-AC or – 24 V-DC
2 Safety chain 48 V-AC or + 24 V-DC
3
Error message ST-2 (normally open contact)
4
Error message ST-2(normally open contact)
5
Operation message ST-1 (normally open contact)
6
Operation message ST-1 (normally open contact)
7 Input Hygrostat 1
8 Input Hygrostat 1
9 Input Hygrostat 2
10 Input Hygrostat 2
11 Control signal input + 4 … 20 mA
12 Control signal input – 4 … 20 mA
13 Control signal input + 0 … 10 V
14 Control signal input – 0 … 10 V
Information Observe the polarity (DC) Observe the polarity (DC) Error message
Error message
Operation message
Operation message 50 % Output Capacity 50 % Output Capacity 100 % Output
Capacity 100 % Output Capacity Observe the polarity Impedance 500 Observe the
polarity Impedance 500 Observe the polarity Impedance 50 K Observe the
polarity Impedance 50 K
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
21
11.2.3 Modbus RTU-Interface
Tab. 11-3 – Assignment of D-SUB socket
PIN
Description
1
BOGA MODBUS RTU < COMMON >
5
BOGA MODBUS RTU < B/B´ >
9
BOGA MODBUS RTU < A/A` >
5 4 3 2 1
9 8 7 6
Fig. 23 – D-SUB socket
11.2.4 Safety chain
Connect safety chain to the screw-type connectors marked 1 and 2.
Observe the 48 V-AC or 24 V-DC power supply.
B1: limit hygrostat
B2: flow monitor
B3: fan locking
B4: conductivity measurement
Fig. 24 – Safety chain
B5: ON/OFF switch
The input of the safety chain must always be supplied with 48 V AC (alternatively 24 V DC) voltage. Otherwise the humidifier will NOT work! If several humidifiers are connected to the safety chain, they must be connected in parallel to each humidifier. ATTENTION: The feed may only be done once.
11.2.5 Status Message Operation – Error
There are two signal outputs via PhotoMOS relay.
Fig. 25 – PhotoMOS Relais
Umax : 24 V-DC Imax : 50 mA Ron max : 25
Tab. 11-4 – Status messages operation / error
Status message 1 2
Message type Operation message Collective Error message
Connection terminal on the green plug 5 + 6 3 + 4
22
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
11.2.6 Control signal
The NKBD can process 2 different external controlled variables. · 0-10 V-DC · 4-20 mA
Input resistances (Load)
Control variable 0-10 V-DC 4-20 mA
Input Impedance
50 k 500
11.2.7 Operation control continuous
The humidifier can process different external analog input signals. The output power can be controlled in the smallest stages between 0% and 100% humidifier output.
· 0-10 V-DC · 4-20 mA
(Standard factory setting) (Standard factory setting)
Tab. 11-5 – Thresholds analog input
Control signal Out PWM ON Out 100 %
0-10 V
1.1 V ± 0.5
8.5 V ± 0.5
4-20 mA
5.4 mA ± 0.1
18.5 mA ± 0.5
1-10* V
2.1 V ± 0.5
8.5 V ± 0.5
0-20* mA
1.7 mA ± 0.1
18.0 mA ± 0.5
(*) = Control signal optionally adjustable at the factory
Out PWM OFF 0.9 V ± 0.5 5.2 mA ± 0.1 2.0 V ± 0.5 1.5 mA ± 0.1
11.2.8 Control via Modbus RTU
The NKBD can also be controlled via BOGA Modbus RTU.
Further information can be found in the BOGA Modbus RTU interface description.
This can be requested from the manufacturer or viewed and downloaded from the
www.boga.de website.
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
23
12. Structure and functions of the control board PCB AIRWIN 3.1
12.1 Connections
Inputs
X9 – Connection of float switch: 1: Float switch, level “S1” black 2: Float
switch, level “S1” brown 3: Float switch, level “S1” blue 4: Float switch,
level “S1” grey
5: Float switch, level “S2” black 6: Float switch, level “S2” brown 7: Float switch, level “S2” blue 8: Float switch, level “S2” grey
X8 – Connection sensor: 1: Current measurement 2: Current measurement +
X9
X8
Notice: Only connections relevant to the device are shown.
12 34 56 7
1 2
1 2 3 4
1 2 34 1 2 34
X2
X4
Fig. 26 – Control board PCB AIRWIN 3.1 Input
X2 – Connection to supply: 1: Power supply L 48 V-AC 2: Power supply N 48 V-AC 3: Release 48 V-AC, 24 V-DC 4: Release 48 V-AC, 24 V-DC
X4 – Connection hyg: 1: Hygrostat input 1 2: Hygrostat input 1 3: Hygrostat input 2 4: Hygrostat input 2
X5
X5: – Connection Reg: 1: Control signal mA + (Ri: 500 ) 2: Control signal mA
3: Control signal V + (Ri: 50 k) 4: Control signal V –
24
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
Outputs
X7 – Connection of solenoid valves 1: Solenoid valve drain L+ 2: Solenoid
valve drain N3: Solenoid valve supply L+ 4: Solenoid valve supply N-
X12 – Connection of oscillator boards: 1: PWM 4 – 5: PWM 2 2: PWM 4 + 6: PWM 2
- 3: PWM 3 – 7: PWM 1 4: PWM 3 + 8: PWM 1 +
X7
X12
1 2 3 4
12 34 56 78
Notice: Only connections relevant to the device are shown.
1 2
1 2 34
X1
X3
Fig. 27 – Control board PCB AIRWIN 3.1 Outputs
X1 – Connection Fan: 1: Relay closing contact 2: Relay closing contact
) not used for NKBD
X3 – Status reports: 1 + 2: Status message 1 (Operation) 3 + 4: Status message 2 (Error)
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
25
12.2 Functional description of the control functions
Current measurement of the oscillator boards In this configuration, a current
check of the oscillator boards is performed every 3 hours. This test only
takes place when the humidification request is present and lasts max. 5
seconds. During this time, the humidifying power is set to 100% and a
functional test of all transducers is performed.
Change of the level control Since the level control in the humidifier is an
important control, the two existing level float switches are monitored
simultaneously. A digital evaluation of the states of both float level levels
reliably detects critical and impermissible states.
Check and holding voltage of the solenoid valves The current consumption of
the solenoid valves is checked before and during filling. If a fault is
detected, the status message ST-2 (error) forwards this information.
Further monitoring-routines Optionally there are monitoring routines for the
filling (maximum filling time) and monitoring routines for emptying the fluid
tray (maximum drainage time). If a fault is detected, an automatic
problemsolving routine will attempt to correct this fault. Furthermore, it is
possible to monitor the function of the fan, solenoid valve supply and
solenoid valve drain via a current measurement.
If a system component does not work correctly, status message ST-2 (error)
forwards this fault information.
The default settings of the control board PCB AIRWIN 3.1 are shown in Tab.
12-1.
26
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
NKBD-6/3. 1 NKBD-12/3.1 NKBD-18/3.1 NKBD-24/3.1 NKBD-30/3.1 NKBD-36/3.1 NKBD-42/3.1
12.3 Default settings
Tab. 12-1 – Default settings PCB AIRWIN 3.1
Time Constants
Parameter
AquaDrain Duration AquaDrain Cycle Time AquaDrain Delay Flush Time Inactivity Flush Timeout Inactivity Drain Timeout Humdification Timeout Fill Timeout Inlet Valve Outlet Valve Fan Oscillator Oscillator Check Intervall Voltage Input Scale Voltage Input Functionality Current Input Scale Current Input Functionality
3 min.
4 min. 12 hours disabled
120 seconds 12 hours
5 min.
12 hours
disabled 15 minutes
enabled enabled disabled enabled
3 hours
0-10 V DC
active
4-20 mA
active
Current Measurment
IOs
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
27
12.4 Adjustment options PCB AIRWIN 3.1
AquaDrain Duration:
The AquaDrain duration is the time the humidifier needs to empty the fluid
tray. This value is given by design and depends on the type of humidifier, the
size of the fluid tray and the installation.
Possible settings:
30 seconds, 1 minute, 2 minutes, 3 minutes, 4 minutes, 5 minutes, 6 minutes.
Default setting:
depending on the device type (Tab. 12-1)
AquaDrain Cycle Time
The AquaDrain cycle time is directly linked to the automatic emptying of the
fluid tray. The AquaDrain process is also performed when there is a
humidification request.
Possible settings:
Disabled, 10 minutes, 30 minutes, 1,5 hours, 3 hours, 6 hours, 12 hours, 24 hours, 48 hours.
Default setting:
12 hours
AquaDrain Delay
The AquaDrain delay is used when several humidifiers are mounted in a system
and AquaDrain is enabled. The AquaDrain delay prevents all humidifiers from
being emptied at the same time.
Possible settings:
No delay, 1 x 15 minutes, 2 x 15 minutes, 3 x 15 minutes, 4 x 15 minutes, 5 x 15 minutes, 6 x 15 minutes, 7 x 15 minutes
Default setting:
No delay
Flush Time
The flushing time is the time at which the water supply line is flushed before
the first operation and after a certain period of inactivity.
Possible settings:
15 seconds, 30 seconds, 120 seconds, 200 seconds
Default setting:
120 seconds
Inactivity Flush Timeout
The “Inactivity Flush Timeout” causes the water supply line to be flushed
after a specified time. If the internal fluid tank is empty and the humidifier
is in idle mode for this adjustable time, the water supply line is flushed
before the internal fluid tank is filled again.
Possible settings:
Default setting, 10 minutes, 30 minutes, 1,5 minutes, 3 hours, 6 hours,12 hours, 24 hours, 48 hours.
Default setting:
12 hours
28
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
Inactivity Drain Timeout
If no humidification is requested, the humidifier is in standby mode. If the
fluid tank is still filled, it is automatically emptied after the adjustable
time “Inactivity Drain Timeout”.
Possible settings:
Default setting, 10 minutes, 30 minutes, 1,5 hours, 3 hours, 6 hours, 12 hours, 24 hours, 48 hours.
Default setting:
12 hours
Humidification Timeout
The humidification timeout is implemented to check for possible water quality
errors. If the humidifier operates for an adjustable amount of time and does
not refill, the water may be dirty and cannot be misted. When the
“Humidification Timeout” time has elapsed, the humidifier checks the function
of the level switches, empties the liquid tank and refills it to remove the
contamination. Another cause of this error could be a lack of airflow. This
problem-solving process runs three times. If the problemsolving process is
unsuccessful, the humidifier will enter the error mode and display the
“Humidification Timeout” error.
Possible settings:
Disabled, 5 minutes, 30 minutes, 1,5 hours, 3 hours, 6 hours, 12 hours, 24 hours, 48 hours.
Default setting:
disabled
Fill Timeout
The “Fill Timeout” is the time the humidifier needs to fill the fluid tray.
When the time for filling expires, without reaching the necessary fluid level
in the fluid tray, a fill error has occurred and a problem solving routine is
activated. If the error cannot be cleared, the humidifier displays the
“Filling Error”. The time to fill depends on the water supply pressure and the
type of humidifier.
Possible settings:
Deaktiviert, 5 minutes, 10 minutes, 15 minutes, 30 minutes, 60 minutes.
Default setting:
15 minutes
Oscillator Check Intervall
The oscillators can be automatically checked after a certain time. If the time
interval has expired and a humidification request is present, the humidifier
will operate for a short time (approximately 5 seconds) with 100%
humidification performance.
Possible settings:
Disabled, 5 minutes, 10 minutes, 15 minutes, 30 minutes, 1,5 hours, 3 hours, 6 hours, 12 hours, 24 hours, 48 hours.
Default setting:
3 hours
Changes to the default values can be made by prior arrangement presetted ex works.
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
29
12.5 State diagram
Fig. 28 – State diagram
*: During the “control Oscillators”, the nebulization output is automatically increased to 100% in the humidification mode for a maximum of 5 seconds
30
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
12.6 Status Message
Tab. 12-2 – Status messages – System States
System State Device switched off no supply voltage Humidification activ
Humidifcation inactiv
Operational message Contact open
Contact closed Contact open
System State Device switched off / no supply voltage Normal operation Fault Mode Error Mode
Error message Contact open Contact closed Contact open
12.7 LED-Indicator and Decoding
There are 4 different colored LEDs on the control board PCB AIRWIN 3.1. Using
different flashing and light frequencies all system states are displayed here.
Information about the next service (5,000 working hours) or maintenance
interval (10,000 working hours) is also displayed here.
Status LED`s
Fig. 29 – Control board PCB AIRWIN 3.1
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
31
Fig. 30 – Decoding LED-Display
12.8 Resetting the maintenance interval
The resetting of the LED display may only be carried out by trained specialists. After service or maintenance has been carried out, the LED display can be reset as follows:
1. Switch off the device and let it drain.
2. Remove the duct support.
3. Deactivate the safety chain by removing the
control unit plug.
4. Switch on the device, wait for the rinsing cycle
and the AquaDrain plus Duration.
5. Do the following action 5 times in a row.
6. Raise level switch S2 to the upper level, wait 1
second and then move it back to the lower level.
S2
7. If the reset of the maintenance interval successful, the LED has gone out.
Fig. 31 – Level switch S2
8. If the LED does not go out, repeat the process.
9. Put the duct support back on and activate the safety chain.
32
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
12.9 Troubleshooting
Tab. 12-3 – Troubleshooting checklist
Error
Displayed error
Significance
Check installation
Check
Error filling
The device is not filled within the specified time
Check inlet water pressure> 1 bar
Check water sieves
Error draining
The device is not emptied within the specified time
Free drain available?
Check fluid tank for cleanliness and clean if necessary
Function magnetic valve, check sequence
Error current measurement supply valve
The solenoid valve supply is Solenoid valve coil
not activated
connected?
Function magnetic valve, check inlet
Check control system
Check control unit settings
Check control unit settings
Check control unit settings
Elimination Restart humidifier Restart humidifier Restart humidifier
No humidification
Error current measurement drain valve
The solenoid valve drain is not activated
Solenoid valve coil connected?
Function magnetic valve, check discharge
Check control unit settings
Error nebulisation timeout
Error level switch
Unknown Error
Error current measurement oscillator boards
A refilling of the fluid tank did not take place during the specified duration
(humidification timeout)
Level switch values are not plausible
Unknown error
The power of the oscillators deviates from the reference value outside the
tolerance range
Water quality in accordance with technical specifications? Air flow available?
Check exact horizontal installation
Check connection of the device
Optical control of the transducer.
Function magnetic valve, check inlet
Cleaning the fluid tank and level switch
Check control unit settings
Check fluid tank for contamination.
Check level switch functions
Check for visual defects
Check control unit settings
Check the function of the transducer visually
Check service status
Check control unit settings
Restart humidifier
Restart humidifier
Restart humidifier Change level switch Disconnect the power supply for at
least 1 minute and then restart
Restart humidifier
Humidification performance
dropped
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
33
13. AquaDrain plus hygiene management
13.1 Description
AquaDrain plus is a system designed to flush the demineralised water inlet
pipe to the humidifier according to vari-ous parameters and to cyclically
empty the fluid tank of the NKBD. To do so, AquaDrain plus uses acertain
software and a solenoid valve combination integrated in the housing of the
humidifier. In addition, AquaDrain plus prevents that the fluid tank is
refilled with water, which had been reduced by evaporation, during the
humidification-free periods of the AquaDrain plus cycle.
The AquaDrain plus cycle is the cycle in which the humidifier, minus the time
for flushing the water inlet pipe and draining of the fluid tank, can humidify
continuously, but does not necessarily have to do so. The AquaDrain plus cycle
is 12 hours and the cycle was preset in the factory. Optionally this setting
may be changed by the manufacturer see chapter 12.1.4.
If several humidifiers are installed in a system and AquaDrain plus is
activated, the AquaDrain plus delay can be used to prevent all humidifiers
from being emptied at the same time. For optional factory settings, see
chapter 12.4.
Definitions 1. Humidifier
1.1. Solenoid valve drain, integrated 1.2. Solenoid valve supply, integrated
2. Water overflow and drainage 3. Water supply 4. Demineralisation system
(reverse osmosis system) 5. Water drainage
Fig. 32 – AquaDrain plus – diagram
34
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
13.2 Features
13.2.1 Flushing of water supply line
The humidifier goes into flushing mode, which is carried out in two phases
depending on the time, for the following events:
1. Initial start-up (operating voltage is present for the first time) 2.
Operating voltage is applied again (after each interruption of operation
voltage) 3. After each humidifying pause which is longer than the AquaDrain
plus cycle
The first phase includes the actual flushing process. The solenoid valves for
supply and drain open at the same time for 120 seconds. The water supply pipes
and/or tubes are rinsed. This ensures that the FIRST water present in the
supply line (possibly hygienically questionable) is not nebulized as it is
drained directly without filling up the fluid tank. The flushing volume
depends on the pressure of the demineralised water (Fig. 37) and the flush
time (Tab. 12-1).
In the second phase the solenoid valve supply is close. The solenoid valve
drain remains open for 3, 4 or 5 Min. (Tab. 12-1 ,,AquaDrain Duration”) to
ensure that the water that might still be inside the fluid tank is drained.
If a humidification request is made after the second phase, the humidifier
will go into normal operation. At the same time, the solenoid valve supply
opens and the solenoid valve drain closes. The fluid tank is filled up to
maximum level. Humidification starts when there is a humidification request.
The filling time for the fluid tank of the humidifier is determined by the
pressure of the demineralised water.
If no humidification request follows after the second phase, the humidifier
will go into standby mode until a humidification request is carried out.
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
35
Fig. 33 – Example for commissioning and restart
Definitions *) possible AquaDrain plus-Cycles: 10 Min., 30 Min, 1.5 h, 3 h, 6
h, 12 h, 24 h and 48 h (default 12 h, may be changed in the factory upon
request) 0) Humidity request OFF 1) Humidity request ON 2) Fluid tank empty 3)
Fluid tank full A) Flushing of water supply line B) Drainage of fluid tank
Any humidification request made during the AquaDrain plus duration will be
ignored.
36
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
13.2.2 Drainage of fluid tank
The NKBD is drained every 12 hours, if humidification took place in the last
AquaDrain plus cycle and in case of any power interruption in the AquaDrain
plus cycle (operating voltage is no longer present).
Any humidification request made during the drainage process will be ignored.
If no humidification is requested, the humidifier is in standby mode. If the
fluid tub is still full, it will be automatically emptied after the adjustable
“Inactivity Drain Timeout”, Tab. 12-1. For optional factory settings, see
chapter 12.1.4. If the system is drained, the fluid tank will only be
refilled, when a humidification request was made. Time of AquaDrain Duration
see Tab. 12-1. The filling time for the fluid tank of the NKBD is determined
by the pressure of the demineralised water and the NKBD-Type. The fluid tank
will stay dry, if there is no humidification request.
Fig. 34 – Period without humidification
Fig. 35 – New humidification request
A) Flushing of water supply line B) Drainage of fluid tank
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
37
13.3 AquaDrain plus diagrams
Fig. 36 – Flow volume solenoid valve supply ND 1.2 mm depending on water
pressure
Fig. 37 – Flushing volume in litres at 120 sec flushing time depending on water pressure
Fig. 38 – Drainage volume – fluid tank NKBD…/3.1
38
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
14. Dimensioning of cable cross section
The ohmic resistance between transformer and humidifier through the power
cable produces a loss in voltage and consequently a drop in humidifier output.
The physical distance and the length of cable between the transformer and the humidifier should therefore be kept to a minimum!
The voltage drop caused by ohmic resistance may be reduced by using a cable of
large cross section and compensated for by the 53 V secondary connection at
the transformer. The graphs Fig. 39- Fig. 45 show the ohmic loss for each
humidifier depending on the cable length.
Using the 53 V transformer secondary voltage results in an overvoltage of 5 V
(~ 10 % of 48 V) which may be consumed by the ohmic resistance of the cable.
The correct cross-section of the cable will always be that which comes closest
to the 5V mark for the voltage loss.
On account of the negligible power consumption of the humidifiers, the open-
circuit voltage on the other hand is almost equal to the voltage at the
transformer. To prevent damage to the humidifier electronics, the open circuit
may not exceed 54 V.
Installation costs will be kept to a minimum if the graphs are correctly used.
The dimensions of the transformer is determined not only by the electrical power consumption of the humidifier NKBD but also on the power consumption of the cable feed (ohmic resistance)!
The conductor resistance of fine-stranded:
1.5 mm² = 13.30 /km 2.5 mm² = 7.98 /km 4.0 mm² = 4.95 /km 6.0 mm² = 3.30 /km 10 mm² = 1.91 /km 16 mm² = 1.21 /km 25 mm² = 0.78 /km
(extract from VDE 0295 and IEC 60228 for bare wires, class 5)
Conductor resistances refer to single-stranded conductors. They must therefore be multiplied by 2 for two-stranded conductors (N+L1).
In addition, the load capability of insulated leads (current density) should be taken into account. VDE 0100 Part 430 and Part 523).
The use of shielded Lines (e.g., LiYCY) recommended for the power supply 48V- AC, as well as the signal and control lines,
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
39
Fig. 39 – Voltage loss at A = 1.5 mm²
Fig. 40 – Voltage loss at A = 2.5 mm²
Fig. 41 – Voltage loss at A =4 mm²
Fig. 42 – Voltage loss at A = 6 mm²
40
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
Fig. 43 – Voltage loss at A = 16 mm²
Fig. 44 – Voltage loss at A = 10 mm²
Fig. 45 – Voltage loss at A = 25 mm²
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
41
15. Commissioning
Before commissioning the NKBD, check once again that all installation and
wiring work has been carried out correctly and fully completed. In particular,
the water and power supply connections must be in proper order and comply with
the relevant safety regulations.
15.1 Manual functions:
· Release of permeate inlet into the device
Fig. 46 – Stop cock
· Release of 230 V / 50 Hz to the transformer and switch on transformer
Fig. 47 – Circuit breaker
· The TARGET humidity at the continuous control must be higher than the ACTUAL humidity
Fig. 48 – Continuous controller in the control cabinet
42
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
15.2 Automatic functions:
· Flushing of water supply line: The solenoid valve supply of the humidifier
opens. The solenoid valve drain is open. The water supply line is flushed
without the fluid tank of the NKBD being filled. After that, the solenoid
valve supply closes again. The solenoid valve drain stays open for 3, 4 or 5
minutes (Tab. 12-1 “AquaDrain Duration”).
· Filling the fluid tank: The Solenoid valve drain closes. The Solenoid valve
supply opens. The fluid tank of the NBKD is filled. The water level is
automatically controlled within narrow tolerances.
The fluid tank may only be filled if a humidification request has been made.
Otherwise the fluid tank of the NKBD will remain dry.
· Humidification: Once the maximum water level is reached and the
humidification request is still present, humidification will start.
15.3 Make applied settings:
· Set target humidity
Commissioning of the NKBD is completed.
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
43
16. Technical Data
Tab. 16-1 – Technical Specifications
Specifications
NKBD-6 NKBD-12 NKBD-18 NKBD-24 NKBD-30 NKBD-36 NKBD-42
/3.1
/3.1
/3.1
/3.1
/3.1
/3.1
/3.1
max. Humidifying capacity *
kg/h
3.6
7.2
10.8
14.4
18.0
21.6
25.2
Transducer
Unit
6
12
18
24
30
36
42
Power supply
V / 50 Hz
48
48
48
48
48
48
48
Power consumption
VA / 50 Hz
185
375
555
735
915
1095
1275
VA / 60 Hz
220
448
660
875
1089
1303
1518
Transformer **
ST
500
500
1000
1000
1600
1600
1600
Humidifying capacity is dependent on the quantitative air flow rate through the humidifier (air velocity in the duct), on the
uniformity of flow over the entire fluid tank length, on the level of supply voltage under load (nominal 48 V), on the water
temperature and on the cleanliness of the fluid tank and the ultrasonic transducers (regular care).
**
The power output of the transformers stated is optimised for the NKBD types. Their power reserves are sufficient to bear
the power consumption of a correctly laid supply cable with short distance between humidifier and transformer.
Nevertheless, it is advisable to check transformer selection mathematically according to local conditions.
Tab. 16-2 – Safety devices
Safety devices
Description
Dry-running protection with functional redundancy
If the water level falls below the minimum level in the fluid tank, the humidification switches off. For this purpose, both level switches are monitored separately.
Overheating protection
The humidifier stops humidifying at water temperatures > 60 °C.
Overflow protection
If the humidifier fluid tank is overfilled, the excess water is drained off to the outside through the overflow.
Disconnect protection
There are no defects in the event of electrical interruptions between the oscillator board and the transducer.
Monitoring
Monitoring of important system components with integrated problem solver routines.
Protection against power surges The control board is protected by its own fuse. A varistor in the input of the power supply protects against power surges.
Tab. 16-3 – Operation conditions
Operation conditions
Parameter
Maximum air humidity Air temperature Demineralised water pressure Demineralised water quality Demineralised water conductivity
< 90 % relative humidity no condensation! 5 – 45 °C 1 – 4 bar fully demineralised 5 – 20 µS/cm
44
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
17. Device dimensions / weights
Tab. 17-1 – Dimensions and weights
Type
NKBD-6/3.1 NKBD-12/3.1 NKBD-18/3.1 NKBD-24/3.1 NKBD-30/3.1 NKBD-36/3.1
NKBD-42/3.1
Weight
kg 6.0 7.7 9.5 11.7 13.7 15.2 17.2
width B
mm 286 436 586 736 886 1036 1186
NKBD…/3.1
Dimensions
depth
height
T T1 T2 H1 min. H1 max.
mm mm mm mm
mm
198 261 288 201
241
198 261 288 201
241
198 261 288 201
241
198 261 288 201
241
198 261 288 201
241
198 261 288 201
241
198 261 288 201
241
Point mounting
P1 P2 P3 P4
mm mm mm mm
124 –
– 231
274 –
– 231
394 –
– 231
544 –
– 231
694 312 382 231
844 387 457 231
994 562 532 231
Fig. 49 – Technical drawing NKBD…/3.1 dimensions
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
45
18. Circuit diagrams
Fig. 50 – 1x NKBD-6…42/3.1, 1x transformer, safety chain, status message, control voltage
46
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
Fig. 51 – 1x NKBD-6…42/3.1, 1x transformer, safety chain, status message, control current
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
47
Fig. 52 – 2x NKBD-6…42/3.1, 1x transformer, safety chain, status message, control voltage
48
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
Fig. 53 – 2x NKBD-6…42/3.1, 1x transformer, safety chain, status message, control current
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
49
Fig. 54 – 1x NKBD-6…42/3.1, 1x transformer, safety chain, status message, control 1-step on/off
50
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
Fig. 55 – 2x NKBD-6…42/3.1, 2x transformer, safety chain, status message, control 1-step on/off
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
51
Fig. 56 – 2x NKBD-6…42/3.1, 1x transformer, safety chain, status message, control 1-step on/off
52
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
Fig. 57 – 1x NKBD-6…42/3.1, 1x transformer, safety chain, status message, control 2-step on/off
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
53
Fig. 58 – 2x NKBD-6…42/3.1, 1x transformer, safety chain, status message, control 2-step on/off
54
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
Fig. 59 – Internal wiring NKBD-6…42/3.1
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
55
19. Care
It is essential that the humidifier is easy to inspect and easily accessible
on site.
Good accessibility and exchangeability of the humidifier save costs!
Prior to opening the humidifier, it must be disconnected from the electricity
and water supply. Then remove the duct support. In case of pollution, the
fluid tank of the humidifier must be cleaned by using a clean, medium hard
brush and clean water. The transducers must be wiped clean with a soft,
scratch-free cloth. Incrustations or solid deposits on the transducers must be
carefully removed. For that purpose, it is recommended to use 20 % formic
acid.
Deposits are a direct consequence of inadequate water quality!
The care intervals depend on the respective degree of contamination of the
humidifier. It depends directly on the cleanliness of the intake air and the
feed water quality. It may be necessary to perform care at shorter intervals.
The performance of the ultrasonic transducers decreases with actual operating
hours. The life time of the ultrasonic transducers will be shortened by
unfavourable operating conditions e.g. water and air pollution or overvoltage.
56
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
Care and cleaning tasks
1. Checks
Check the air duct, the fluid tank and the transducers for contamination.
Clean them, if necessary!
Initially, a check has to be carried out after 1 week. Depending on the degree
of contamination of the fluid tank and the
transducers the cleaning intervals must be adjusted.
If pollution is found during the check, cleaning must be performed.
2. Care and cleaning
– Fluid tank – Transducers
Measures
Slime in the fluid tank is a sign of the presence of micro-organisms! Cause:
Air and/or water
Incrustations are mineral deposits! Cause: Water
· Check and clean the air duct, if required! · Check reverse osmosis system! ·
Adjust cleaning intervals!
Even without visible pollution, cleaning must be done at least every 12 months.
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
57
20. Standards
20.1 EC declaration of conformity according to Machinery directive 2006/42/EC,
Annex II 1.A
The resident authorised representative in the community
BOGA GmbH Werkstraße 16 D-59494 Soest
hereby declares that the following product
Product designation: Make: Series/type designation:
Duct humidifier AIRWIN NKBD-6/3.1, NKBD-12/3.1, NKBD-18/3.1, NKBD-24/3.1, NKBD-30/3.1, NKBD-36/3.1, NKBD-42/3.1,
fulfills all the relevant provisions of the directive specified above and the additionally applied directives (in the following) – including the changes which applied at the time of the declaration.
The following additional EU directives have been applied: · EMC Directive 2014/30/EU · RoHS directive 2011/65/EU
The series complies with the safety regulations of VDE 0100 and was tested in accordance with VDE 701 part 1.
20.2 WEEE
The humidifier is WEEE-registered.
20.3 Imprint – Copyright
Imprint Copyright
BOGA GmbH
Gesellschaft für moderne Gerätetechnik
Werkstraße 16
D-59494 Soest
Phone : +49 2921 96943-0
Fax
: +49 2921 96943-29
E-mail : info@boga.de
Website : www.boga.de
The copyright and all other rights of use for the documents belong to BOGA GmbH. The documents may not be copied, distributed, publicly displayed, edited or otherwise transformed without the written consent of BOGA GmbH.
58
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
21. List of figures
Fig. 1 – Schematic sketch of piezo-effect
……………………………………………………………………………………………..7 Fig. 2 – Schematic sketch aerosol
production ……………………………………………………………………………………….8 Fig. 3 – Device overview
NKBD-30/3.1……………………………………………………………………………………………….10 Fig. 4 – Schematic
illustration of NKBD-12/3.1 air humidification system ………………………………………………..11
Fig. 5 – Side view into an air duct with one
NKBD………………………………………………………………………………..13 Fig. 6 – View into an air duct in
direction of air flow, two NKBD mounted one above the other…………………..13 Fig. 7
– Side view into an air duct with three NKBD ……………………………………………………………………………..14
Fig. 8 – View into an air duct in direction of air flow, three NKBD mounted
above each other ……………………14 Fig. 9 – Side view NKBD in the air duct
………………………………………………………………………………………………15 Fig. 10 – Top view NKBD in the air duct
……………………………………………………………………………………………..15 Fig. 11 – Set folded sheet
…………………………………………………………………………………………………………………16 Fig. 12 – Set extension
…………………………………………………………………………………………………………………….16 Fig. 13 – Set closing sheet
………………………………………………………………………………………………………………..16 Fig. 14 – Rotate duct
support…………………………………………………………………………………………………………….17 Fig. 15 – Schematic
diagram of hydraulic conditions…………………………………………………………………………….18 Fig. 16 –
Establishing the connection …………………………………………………………………………………………………19 Fig. 17 –
Insert tube …………………………………………………………………………………………………………………………19 Fig. 18 – Check
connection……………………………………………………………………………………………………………….19 Fig. 19 – Detaching
the connection…………………………………………………………………………………………………….19 Fig. 20 – Transformer
with one secondary output ………………………………………………………………………………..20 Fig. 21 –
Transformer with multiple secondary outputs …………………………………………………………………………20
Fig. 22 – Electrical connections …………………………………………………………………………………………………………21
Fig. 23 – D-SUB socket…………………………………………………………………………………………………………………….22 Fig. 24
– Safety chain……………………………………………………………………………………………………………………….22 Fig. 25 –
PhotoMOS Relais……………………………………………………………………………………………………………….22 Fig. 26 – Control
board PCB AIRWIN 3.1 Input ……………………………………………………………………………………24 Fig. 27 –
Control board PCB AIRWIN 3.1 Outputs ……………………………………………………………………………….25 Fig. 28
– State diagram …………………………………………………………………………………………………………………….30 Fig. 29 –
Control board PCB AIRWIN 3.1 ……………………………………………………………………………………………31 Fig. 30 –
Decoding LED-Display ………………………………………………………………………………………………………..32 Fig. 31 –
Level switch S2 ………………………………………………………………………………………………………………….32 Fig. 32 –
AquaDrain plus – diagram ……………………………………………………………………………………………………34 Fig. 33 –
Example for commissioning and restart …………………………………………………………………………………36 Fig.
34 – Period without humidification ……………………………………………………………………………………………….37
Fig. 35 – New humidification request ………………………………………………………………………………………………….37
Fig. 36 – Flow volume solenoid valve supply ND 1.2 mm depending on water
pressure …………………………..38 Fig. 37 – Flushing volume in litres at 120 sec
flushing time depending on water pressure…………………………38 Fig. 38 – Drainage
volume – fluid tank NKBD…/3.1………………………………………………………………………………38 Fig. 39 –
Voltage loss at A = 1.5 mm² …………………………………………………………………………………………………40 Fig. 40 –
Voltage loss at A = 2.5 mm² …………………………………………………………………………………………………40 Fig. 41 –
Voltage loss at A =4 mm² …………………………………………………………………………………………………….40 Fig. 42 –
Voltage loss at A = 6 mm² ……………………………………………………………………………………………………40 Fig. 43 –
Voltage loss at A = 16 mm² ………………………………………………………………………………………………….41 Fig. 44 –
Voltage loss at A = 10 mm² ………………………………………………………………………………………………….41 Fig. 45 –
Voltage loss at A = 25 mm² ………………………………………………………………………………………………….41 Fig. 46 –
Stop cock…………………………………………………………………………………………………………………………..42 Fig. 47 – Circuit
breaker ……………………………………………………………………………………………………………………42 Fig. 48 – Continuous
controller in the control cabinet ……………………………………………………………………………42 Fig. 49 –
Technical drawing NKBD…/3.1 dimensions …………………………………………………………………………..45 Fig.
50 – 1x NKBD-6…42/3.1, 1x transformer, safety chain, status message, control
voltage ……………………46 Fig. 51 – 1x NKBD-6…42/3.1, 1x transformer, safety chain,
status message, control current ……………………47 Fig. 52 – 2x NKBD-6…42/3.1, 1x
transformer, safety chain, status message, control voltage ……………………48 Fig. 53
– 2x NKBD-6…42/3.1, 1x transformer, safety chain, status message, control
current ……………………49 Fig. 54 – 1x NKBD-6…42/3.1, 1x transformer, safety chain,
status message, control 1-step on/off ……………50 Fig. 55 – 2x NKBD-6…42/3.1, 2x
transformer, safety chain, status message, control 1-step on/off ……………51 Fig.
56 – 2x NKBD-6…42/3.1, 1x transformer, safety chain, status message, control
1-step on/off ……………52 Fig. 57 – 1x NKBD-6…42/3.1, 1x transformer, safety
chain, status message, control 2-step on/off ……………53 Fig. 58 – 2x
NKBD-6…42/3.1, 1x transformer, safety chain, status message, control 2-step
on/off ……………54 Fig. 59 – Internal wiring NKBD-6…42/3.1
……………………………………………………………………………………………55
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes
in dimensions, weights and other technical data. All rights reserved.
Modifications, reprints and photomechanical reproduction, even in extract
from, require the express perm ission of BOGA GmbH, Werkstraße 16, D-59494
Soest.
59
List of tables
Tab. 11-1 – Assignment of power connection terminals
………………………………………………………………………. 21 Tab. 11-2 – Assignment of control connection
terminals ……………………………………………………………………… 21 Tab. 11-3 – Assignment of D-SUB
socket………………………………………………………………………………………….. 22 Tab. 11-4 – Status messages
operation / error…………………………………………………………………………………… 22 Tab. 11-5 – Thresholds
analog input…………………………………………………………………………………………………. 23 Tab. 12-1 – Default
settings PCB AIRWIN 3.1……………………………………………………………………………………. 27 Tab. 12-2 – Status
messages – System States …………………………………………………………………………………… 31 Tab. 12-3 –
Troubleshooting checklist ………………………………………………………………………………………………. 33 Tab. 16-1 –
Technical Specifications ………………………………………………………………………………………………… 44 Tab. 16-2 –
Safety devices………………………………………………………………………………………………………………. 44 Tab. 16-3 –
Operation conditions ……………………………………………………………………………………………………… 44 Tab. 17-1 –
Dimensions and weights ………………………………………………………………………………………………… 45
60
[MBA_NKBD-3.1_EN] Rev.: 05/2023 Translation of the original instructions
No liability accepted for translation or printing errors. Subject to changes in dimensions, weights and other technical data. All rights reserved. Modifications, reprints and photomechanical reproduction, even in extract from, require the express permission of BOGA GmbH, Werkstraße 16, D-59494 Soest.
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>