Wohler BC 600 User manual

The measure of technology
Operating Manual
Blower Check
Wöhler BC 600
Multimode
Order no. 25197 – 2023-08-23

Contents
2
Contents
1General...................................................5
1.1 Information about this operating manual ....... 5
1.2 Symbols used in this operating manual......... 5
1.3 Proper use..................................................... 6
1.4 Country specific features............................... 6
2General safety instructions .................8
2.1 Setup and installation.................................... 8
2.2 Ongoing operation......................................... 8
2.3 Maintenance.................................................. 9
2.4 Data security ................................................. 9
2.5 Scope of supply of the standard version ..... 10
2.6 Transport..................................................... 11
2.7 Disposal ...................................................... 11
2.8 Manufacturer's address............................... 11
3Specifications......................................12
3.1 Measurement values................................... 12
3.2 Device data ................................................. 13
3.3 Cloth door panel.......................................... 14
3.4 Clamps (wide) ............................................. 14
3.5 Clamps (narrow).......................................... 14
3.6 Installation frame......................................... 14
3.7 App.............................................................. 14
3.7.1 Supported operating systems...................... 14
3.7.2 Others ......................................................... 15
3.8 Assembly and connections.......................... 16
3.8.1 Blower fan ................................................... 16
3.8.2 Main switch and power supply connection .. 17
3.8.3 Connections – capillary tubes ..................... 17
3.8.4 Operating keys ............................................ 18
4Preparing building leakage test ........20

Contents
3
4.1 Building preparation to DIN EN 13829......... 20
4.1.1 Method A: Testing a building in use............. 20
4.1.2 Method B: Testing the building envelope for
leaks ............................................................ 20
4.2 Building preparation to ISO 9972................. 21
4.2.1 Method 1: Testing a building in in use ......... 21
4.2.2 Method 2: Testing the building envelope ..... 21
4.2.3 Method 3: Testing the building for a specific
purpose........................................................ 21
4.2.4 Measurement conditions to DIN EN 13829
/ISO 9972 .................................................... 22
4.3 Time of measurement.................................. 22
4.4 Weather conditions ...................................... 22
5Setting up and dismantling the
Wöhler BC 600.....................................24
5.1 Installation ................................................... 24
5.2 Dismantling .................................................. 31
5.3 Installation of two fan units in a door frame . 33
6Operating the Wöhler BC 600 via the
app........................................................34
6.1 Downloading the app................................... 35
6.2 Updating the app ......................................... 35
6.3 Overview of functions .................................. 36
6.4 Opening the Wöhler BC 600 App................ 36
6.5 Customer management ............................... 38
6.5.1 Creating or editing customer files ................ 39
6.5.2 Deleting customer files ................................ 43
6.5.3 Measurement Preparation ........................... 43
6.6 Establishing connection ............................... 44
6.6.1 Connection between Mobile Device and
Router tp-link ............................................... 44
6.6.2 Connection between Mobile Device and other
router (Not preconfigured at Wöhler ) .......... 45
6.6.3 Connection between Fan Unit and App ....... 47
6.7 Assignment of primary and secondary unit.. 49

Contents
4
6.8 Guard Zone Measurement according to DIN
EN ISO 9972 ............................................... 50
7Leakage Test .......................................51
7.1 Leakage test with App................................. 51
7.2 Leakage test without app ............................ 56
7.3 Multi-point test............................................. 57
7.3.1 Selecting the measurement method............ 57
7.3.2 Multi-Point Test - Preparation...................... 60
7.3.3 Performing the Measurement...................... 67
7.3.4 Save measurement Data............................. 71
7.3.5 Continuing the measurement after a WLAN
connection termination ................................ 72
7.4 Report: Certificate or protocol ..................... 74
7.4.1 Company logo on report.............................. 75
7.4.2 Generating a report ..................................... 77
7.5 Import/export data ....................................... 79
7.5.1 Data export (Android and iOS ..................... 80
7.5.2 Data export (Windows)................................ 81
7.5.3 Data import.................................................. 82
8Settings................................................84
8.1 General ....................................................... 84
8.2 Settings: Measuring Procedure ................... 85
8.3 Report ......................................................... 86
8.4 Unit Settings................................................ 88
8.4.1 Assigning a colour to the fan unit ................ 88
8.4.2 Stand-Alone-Differential Pressure ............... 89
8.4.3 Connection with external router................... 89
9Maintenance ........................................90
9.1 Maintenance list .......................................... 90
10 Warranty and Service .........................91
10.1 Warranty...................................................... 91
10.2 Service ........................................................ 91
11 Declaration of conformity ..................92
12 Accessories.........................................93

Contents
5
1 General
1.1 Information about this
operating manual
These operating instructions enable you to safely
operate the Wöhler BC 600 in multimode. Keep
these operating instructions in a safe place.
The Wöhler BC 600 may only be used by qualified
personnel for the intended purpose.
We accept no liability for damage caused by fail-
ure to observe these operating instructions.
1.2 Symbols used in this
operating manual WARNING!
Highlights hazards. Failure to observe this infor-
mation risks injury or death.
CAUTION!
Highlights risks that can lead to damage occurring
to the device or the data files.
NOTE!
Highlights tips and other useful information.

General
6
1.3 Proper use
These operating instructions explain differential
pressure measurements with the Wöhler BC 600
App with up to 4 fan units.
The Wöhler BC 600 App makes it possible to car-
ry out a measurement with up to four Wöhler BC
600 at the same time. In this way, the leakage of
buildings with a very large internal volume or of
very leaky buildings can be determined (apart-
ment buildings, gymnasiums, etc.) without having
to divide the building into sections. In this way, it is
avoided that possible cross-influences between
the measuring sections falsify the result. In this
case, the WLAN network of an external router is
used. The user controls the multimode measure-
ment via only one app. The app displays the
overall result of all devices used. However, the
tester also has the option of calling up the meas-
urement data of the individual devices in order to
determine any special features at the individual
measurement positions.
NOTE!
Only use several fan units for the measurement if
one fan unit cannot generate the required volume
flow or if the volume flow is at the upper limit of
the measuring range when using one fan unit. If
this is not the case, we recommend measuring
with one fan unit.
1.4 Country specific features
A country code is stored in the BC 600 firmware,
which determines the language and country-
specific requirements for the measurement.
If the Wöhler BC 600 app is started before the
mobile device has ever been connected to a BC
600 fan unit, the app uses the system language of
the mobile device.
If the user connects the app to a Wöhler BC 600,
the app reads its country code and uses it from
this point on. The country code is decisive for:
−the language of the app, the report and
the manual
−the selectable requirements for the
measurement.
−Messung.

General
7
NOTE!
When measuring in multimode, the country code
of the primary device in the measuring room is
always decisive.

General safety instructions
8
2 General safety instructions
•The Wöhler BC 600 must be used only by
skilled personnel exclusively for the purpose
for which it was designed.
•
Prevent children gaining access to the device
at all times.
2.1 Setup and installation
•Always visually inspect the device before
using. In particular, the housing, cables and
tubes must not exhibit any signs of damage.
Ensure also that no moisture has ingressed
the blower fan.
•
Make sure the device is stable; use the envis-
aged mounting options where required.
•
Make sure the ventilation slots are open and
remain free of dust to allow the device to be
sufficiently cooled.
•
When connecting the blower fan use only
cables with a grounding connection. Make
sure the conductor cross-sections of any re-
quired extension lead are sufficiently dimen-
sioned.
•
Extinguish any open fires in the test area.
•
When not securely installed the fan must only
be operated at low speeds to prevent the de-
vice tipping over.
2.2 Ongoing operation
•Wear hearing protectors when the fan is oper-
ating at high speeds.
•It is strictly forbidden to operate the device in
wet or damp environments.
•
Listen to the noise the blower fan makes when
starting up. Power down the blower fan at the
main switch and disconnect the power plug if
you hear any unusual noises.
•
People must maintain a safe distance to the
blower fan unit when it is in operation.
Do not under any circumstances insert your
fingers or objects through the fan grilles.

General safety instructions
9
•Make sure there are no restrictions preventing
the flow of conveyed air on the inlet and outlet
sides. There is a risk that hair, clothing and
construction material could be sucked into the
fan. Furthermore, restrictions to the flow of air
can falsify the measurement result.
•
Avoid operating the blower fan at high speeds
for too long without breaks during very warm
weather in particular, as this risks the device
overheating.
•
Always switch off the blower fan and wait for
the fan blades to stop before moving the unit.
Disconnect the power plug to be on the safe
side.
2.3 Maintenance
•Repairs must only be undertaken by trained,
skilled personnel from Wöhler Technik GmbH.
•
Always disconnect the device from the power
supply before cleaning and inspecting.
2.4 Data security
•Protect the data stored in the Wöhler BC 600
app under Customer Management against
unauthorized access by third parties. Make
use of the security technology offered by the
operating system of your mobile device.

General safety instructions
10
2.5 Scope of supply of
the standard version
Device
Basic features
Wöhler BC 600
Blower Check
1 blower fan unit
1 cover to measure
the zero-flow pressure
difference
Telescopic rod
1 connection cable
2.5 m
2 capillary tubes
18 clamps 220 mm
4 clamps 120 mm
Clamps in plastic case
1 fan strap, see Fig.
10
1 lashing belt, see
Fig. 21
1 cloth door panel
1.5 x 2.6 m with fan
strap
1 transport bag
Hexagon socket key to
tighten the clamps of
the telescopic rod
10 colored adhesive
dots

General safety instructions
11
2.6 Transport
WARNING!
It is imperative that the Wöhler BC 600 is switched
off before being moved.
CAUTION!
Do not place the blower with the motor facing
down if it is to be laid flat for transporting or stor-
age purposes; instead, make sure it rests on the
back of the unit.
To avoid damage occurring during transport it is
imperative to transport the device in the transport
bag included in the scope of supply.
2.7 Disposal
Do not dispose of electronic equipment along with
household waste. Dispose of electronic equipment
in accordance with applicable environmental regu-
lations.
2.8 Manufacturer's address
Wöhler Technik GmbH
Wöhler-Platz 1
33181 Bad Wünnenberg
Tel.: [phone]
Fax: [phone]
Email: [e-mail]

Specifications
12
3 Specifications
3.1 Measurement values
Differential pressure
Range
-100 .. 100 Pa
Resolution
0.1 Pa
Accuracy
Max of 0.25 Pa or 1%
of measurement
Air flow rate at 50 Pa (extrapolited)
Range
15 .. 6000 m³/h
Resolution
0.1 m³/h
Accuracy
+/- 5% or 1.5 m³/h
(the respective higher
value applies)
Air temperature
Range
-20 .. 50 °C
Resolution
0.1 °C
Accuracy
+/- 0.5 °C
Absolute pressure
Range
300 .. 1200 hPa
Resolution
0.1 hPa
Accuracy
+/- 3 hPa
Relative humidity
Range
20 .. 80% RH
Resolution
0.1% RH
Accuracy
+/- 5% RH

Specifications
13
3.2 Device data
Minimum version for
multimode
Firmware 02.01.00
App 2.0
NOTE!
The serial number of a multimode-capable BC
600 always ends with “M”.
Wöhler can update every Singlemode BC 600
with the firmware 02.01.00 or higher (fee re-
quired).
Power supply
220 … 230V AC,
50 ... 60 Hz
Max. current con-
sumption
6.5 A
Degree of protection
IP 21
Dimensions
(W x H x D)
571 x 726 x 170 mm
Weight
11.4 kg
Interfaces
WLAN (802.11 b/g/n)
with WPA2 encryp-
tion
Connections
Inlet connector, dif-
ferential pressure
tubes
Storage temperature
-20 to 50 °C
Operating temperature
5 to 40 °C
Recommended
calibration interval
Every 2 years
NOTE !
If more than 2 fan units are used, a power connection on different phases will be nec-
essary. A household socket supplies a maximum power of 3.68 V, but this is not suffi-
cient, especially when measuring with higher volume flows.

Specifications
14
3.3 Cloth door panel
Dimensions
1.80 m x 2.80 m
Opening to mount
blower fan
Ø 525 mm
3.4 Clamps (wide)
Max. clamping range
220 mm
Weight
0.155 kg
Dimensions
(W x H x D)
220 x 50 x 141 mm
3.5 Clamps (narrow)
Max. clamping range
120 mm
Weight
0.067 kg
Dimensions
(W x H x D)
120 x 48 x 124 mm
3.6 Installation frame
Min. installation
opening (W x H)
0.8 x 0.9 m
Max. installation
opening (W x H)
1.25 x 2.3 m
Weight
12 kg
3.7 App
3.7.1
Supported operating
systems
Android
Version 4.1 and
higher
Windows
Version 10 and high-
er
Apple
Iphone
iOS 9.0 and higher
iPad
iPadOS 9.0 and
higher
MAC
macOS 11.0, see the
following note.

Specifications
15
NOTE!
To install the Wöhler BC 600 app on MAC device,
the 2 following conditions must be met:
- Operating system macOS 11.0 (Big Sur) or
newer
- Apple processor "M1”
3.7.2 Others
Further minimum
requirements
WLAN
Recommended PDF
reader app (to be
installed separately
on the mobile device)
Adobe Acrobat
Reader

Specifications
16
3.8 Assembly and connections
3.8.1 Blower fan
Fig. 1: Fan unit Wöhler BC 600, front view
Legend
1 Telescopic rod
2 Operating keys
3 Motor cover with filter
4 Main switch
5 Power supply connection
6 Supporting feet
7 Pressure connection
(for indoor capillary tube)
8 Pressure connection
(for outdoor capillary tube)
9 Infrared interface (only for service)
2
4
6
3
5
6
8
1
9
7

Specifications
17
3.8.2 Main switch and power
supply connection
Fig.
2: Main switch
WARNING!
If a malfunction occurs, switch off the blower fan
unit at the main switch (1) and disconnect the
power plug (2).
3.8.3 Connections – capillary
tubes
Fig.
3: Ports to c
onnect capillary tubes for
differential pressure measurements
1 route the capillary tube into the building
2 route the capillary tube out of the building
1
2
1
2

Specifications
18
3.8.4 Operating keys
Fig. 4: Operating keys and IR interface
WLAN-Key
Situation
WLAN-Key
Flashing
Immediately after the
Wöhler BC 600 is
switched on
Flashes regularly, waiting
for connection
Singlemode: After a mo-
bile device connects to the
access point of the Wöhler
BC 600
Alternately flashes twice
quickly and goes off
WLAN connection suc-
cessfully established via
the app
Lights up continuously
Multimode. Searching for
an external router
Flashes very quickly
Multimode. Connected to
external router
Lights up permanently
with short interruptions
WLAN key
Start/Stop key
IR interface

Specifications
19
Start/Stopp-Key
Situation
Start/Stopp-Key
Flashing
When zeroing the differen-
tial pressure sensor
Flashes quickly
−Measurement in pro-
gress
−Target differential pres-
sure not yet reached
Flashes
−Measurement in pro-
gress
−Target differential pres-
sure reached
Lights up continuously
−Measurement in pro-
gress
−Wöhler BC 600 recog-
nizes stable pressure
level
Flickers briefly

Preparing building leakage test
20
4 Preparing building leakage test
4.1 Building preparation to DIN EN 13829
DIN EN 13829 offers 2 methods for building preparation: Method A and method B.
NOTE!
Checklists containing precise notes on building preparation in accordance with method
A and method B are provided in Annex 3 of the FLiB supplement to DIN EN 13829,
FLiB information sheet 05/ 2015. These checklists are stored in the Wöhler BC 600
app, see chapter 7.3.1.
4.1.1 Method A: Testing a
building in use
Method A contains stricter requirements. Method
A is used when testing the building in the condi-
tion in which it is used. For test purposes all inten-
tional openings to the outside (for example, cat
flaps and letter boxes) are closed.
Switch off the extractor hood.
4.1.2 Method B: Testing the
building envelope for
leaks
When method B is used all adjustable openings
are closed and all other intentional openings are
sealed.
This method is required in the currently valid
German Energy Saving Ordinance (EnEV 2014).
Seal the extractor hood using a sealing bladder.