FRÄNKISCHE profi-air 180 Flat User manual

profi-air® flat / flex connection box
Installation instructions / operating instructions
Building Technology
www.fraenkische.com

Table of contents
1 General information 3
1.1 Introduction 3
1.2 Safety 3
2 Intended use 4
3 Structure 4
4 Scope of delivery 4
5 Technical data 4
5.1 Connection options 4
5.2 Dimensional drawing 4
5.3 Schematic connection diagram 5
6 Wiring diagrams 5
6.1 Modbus (connection to the ventilation unit) 6
6.2 Fire / smoke alarm input 6
6.3 Humidistat input 7
6.4 Standby input 8
6.5 External fan activation input 9
6.6 Error messages output 9
7 Warranty 10
8 Liability 10
9 Disposal 10
All information provided in this publication is generally up to date at the time of printing. Moreover, this publication was prepared with the greatest possible care. However, we cannot rule out
printing errors or translation mistakes. Furthermore, we reserve the right to change products, specifications and other information, or changes may be necessary due to legal, material or other
technical requirements, which no longer could be considered for this publication. For this reason, we are unable to accept any liability if this is based solely on the information contained in this
publication. Instrumental in connection with information about products or services are always the purchase order, the concrete product purchased and the related documentation or the
information provided by our specialist staff in the specific case.
Installation instructions / operating instructions – profi-air flat / flex connection box
2

Risk of personal injury
Risk of:
■ Damage to equipment
■ Errors while operating the device if the instructions are not followed
■ Other material damage
Additional notes
Reference to other sections and / or guidelines of the manufacturer
Disposal instructions
1 General information
The profi-air connection box extends the range of electric connection options of a ventilation unit from the profi air flat / flex
product line.
1.1 Introduction
These installation and operating instructions are intended to help you install a fully functional connection box and properly operate it.
We recommend that you read these instructions carefully before you commence installation. These installation and operating
instructions can also serve as a reference for service and maintenance work and guarantee smooth and ecient operation.
1.2 Safety
If used as intended, the unit is safe and reliable to operate. The construction and design are state of the art and comply with all
relevant DIN / VDE regulations and safety provisions. All safety regulations, warnings and notes of these installation and operating
instructions have to be observed; non-observance might result in personal injury and / or damage to the connection box.
1.2.1 Safety regulations
■ Installation, connection and commissioning of the connection box must be performed by authorised and qualified personnel only.
■ Non-authorised changes or modifications of the connection box are not allowed.
■ Installation of the connection box is to be carried out according to the applicable local construction, safety and installation
regulations.
■ Keep these installation and operating instructions near the connection box during its entire life.
1.2.2 Symbols used
Installation instructions / operating instructions – profi-air flat / flex connection box 3

170 mm
140 mm
100 mm
170 mm
140 mm
100 mm
2 Intended use
The profi-air connection box extends the range of electric connection options for the ventilation units from the profi-air flat / flex
product line. It is connected directly to the mainboard of the ventilation unit.
3 Structure
The connection box consists of a control board with various inputs and outputs. This control board is incorporated into a plastic
housing which is installed near the ventilation unit.
4 Scope of delivery
■ Connection box incl. 4 PG threaded connectors
■ Approx. 2.5m of connection cable wired / with RJ25 connector plug to connect to the mainboard of the ventilation unit.
■ USB cable (exclusively for the factory customer service for firmware updates)
■ Installation and operating instructions
5 Technical data
■ Fire alarm
■ Standby switch
■ Room humidistats
5.1 Connection options
5.2 Dimensional drawing
■ External fan activation
■ External filter alarm
■ External fault alarm
Installation instructions / operating instructions – profi-air flat / flex connection box
4

Pre-heat/cool
Afterheater
AlarmInput
CO₂
Aux
Aftercooler
J6
J11
J7
J8
J9
J10
J12J13
Power In
24VDC
24VDC
24VDC
12V
USB
Fail
OK
Status
Elec. PH
0V
0V
D+
D-
T
Fire
Therm
+-+-
Input Damper 1
Open
Open
Damper 2 ModBus
1
+
2
+
T1GTC
+16V
Standby
Switch
Hygro-
stat
Fail
Alarm
Filter
Alarm
+12V
SDA
SCL
TFAH
T2AH
T2AC
0 - 10V
0 - 10V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 - 10V
0 - 10V
J1 J2 J3 J4 J5
Humidistat input
Filter alarm output
Fault alarm output
Standby input
0-10V
external fan
activation input
USB connection / firmware Not active
Not active
Not active
Fire / smoke
alarm input
Not active
Not active
Modbus / connection to the
ventilation unit and / or
connection to the control unit.
5.3 Schematic connection diagram
5 Technical data
6 Wiring diagrams
The connection box must be wired and put into operation according to the following wiring diagrams.
All connection activities must be performed in the “dead” state only since otherwise the connection
box or the mainboard of the ventilation unit may get damaged.
All connection activities must be carried out by authorised and qualified personnel only. In addition,
applicable local regulations and safety provisions must be complied with.
Installation instructions / operating instructions – profi-air flat / flex connection box 5

Pre-heat/cool
Afterheater
AlarmInput
CO₂
Aux
Aftercooler
J6
J11
J7
J8
J9
J10
J12J13
Power In
24VDC
24VDC
24VDC
12V
USB
Fail
OK
Status
Elec. PH
0V
0V
D+
D-
T
Fire
Therm
+-+-
Input Damper 1
Open
Open
Damper 2 ModBus
1
+
2
+
T1GTC
+16V
Standby
Switch
Hygro-
stat
Fail
Alarm
Filter
Alarm
+12V
SDA
SCL
TFAH
T2AH
T2AC
0 - 10V
0 - 10V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 - 10V
0 - 10V
J1 J2 J3 J4
J5
A
1
A
2
1
2
A
1
A
2
1
3
2
Coil driver
For information on the connection, please consult the installation and operating instructions of the
ventilation unit.
6.1 Modbus (connection to the ventilation unit)
Since the external control unit delivered with the profi-air180flat ventilation unit also uses the Modbus interface on the mainboard,
it must also be connected to the clamping points of the connection box on site. Please observe the colour coding of the wires.
The input can be used to connect the fire / smoke alarm with a relay output. When delivered, the contact is furnished with a
bridge. If this contact is interrupted by, e.g., a triggered fire / smoke alarm, the control system deactivates the ventilation unit.
In order to put the ventilation unit back into operation, it must be completely disconnected from power supply for a short period
of time.
6.2 Fire / smoke alarm input
To use the function, the contact must be connected to the break-contact relay (see illustration), and the factory-provided
bridge must be removed. If the relay is in a “live” state, the contact is closed. If the current at the relay drops, the contact will
be broken and the ventilation unit will be deactivated. The J2 contact is operated at a maximum of 24V DC/300mA.
The Modbus connection is used to connect the connection box to the mainboard of the ventilation unit.
6 Wiring diagrams
Installation instructions / operating instructions – profi-air flat / flex connection box
6

Pre-heat/cool
Afterheater
AlarmInput
CO2
Aux
Aftercooler
J6
J11
J7J8
J9
J10
J12J13
Power In
24VDC
24VDC
24VDC
12V
USB
Fail
OK
Status
Elec. PH
0V
0V
D+
D-
T
Fire
Therm
+-+-
Input Damper 1
Open
Open
Damper 2 ModBus
1
+
2
+
T1GTC
+16V
Standby
Switch
Hygro-
stat
Fail
Alarm
Filter
Alarm
+12V
SDA
SCL
TFAH
T2AH
T2AC
0 - 10V
0 - 10V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 - 10V
0 - 10V
J1 J2 J3 J4 J5
A
1
A
2
1
2
A
1
A
2
1
3
2
Coil driver
profi-air room humidistats (cat. no. 78300841) can be connected to this input. If the set value at the room humidistat is exceeded,
the control system switches the ventilation unit to mode 3. If the wiring is arranged in parallel, several room humidistats can be
connected to the contact.
The digital input on the control board of the ventilation unit can also be used to connect room humidistats
to the ventilation unit. See the profi-air180flat or profi-air250/360flex ventilation unit installation
instructions / operating instructions.
6.3 Humidistat input
6 Wiring diagrams
Installation instructions / operating instructions – profi-air flat / flex connection box 7

Pre-heat/cool
Afterheater
AlarmInput
CO2
Aux
Aftercooler
J6
J11
J7J8
J9
J10
J12J13
Power In
24VDC
24VDC
24VDC
12V
USB
Fail
OK
Status
Elec. PH
0V
0V
D+
D-
T
Fire
Therm
+-+-
Input Damper 1
Open
Open
Damper 2 ModBus
1
+
2
+
T1GTC
+16V
Standby
Switch
Hygro-
stat
Fail
Alarm
Filter
Alarm
+12V
SDA
SCL
TFAH
T2AH
T2AC
0 - 10V
0 - 10V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 - 10V
0 - 10V
J1 J2 J3 J4 J5
2
1
A
1
A
2
1
2
A
1
A
2
1
3
2
Coil driver
The input can be used to connect a standby switch to the ventilation unit.
■ Contact closed – ventilation unit in operation
■ Contact open – ventilation unit out of operation
If the system has been switched o over a longer period of time, this causes an increased risk of
condensation in the pipes, and / or might lead to moisture damage in the building.
6.4 Standby input
6 Wiring diagrams
Installation instructions / operating instructions – profi-air flat / flex connection box
8

Pre-heat/cool
Afterheater
AlarmInput
CO2
Aux
Aftercooler
J6
J11
J7J8
J9
J10
J12J13
Power In
24VDC
24VDC
24VDC
12V
USB
Fail
OK
Status
Elec. PH
0V
0V
D+
D-
T
Fire
Therm
+-+-
Input Damper 1
Open
Open
Damper 2 ModBus
1
+
2
+
T1GTC
+16V
Standby
Switch
Hygro-
stat
Fail
Alarm
Filter
Alarm
+12V
SDA
SCL
TFAH
T2AH
T2AC
0 - 10V
0 - 10V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 - 10V
0 - 10V
J1 J2 J3 J4 J5
Connection of external
0-10V control signal
Pre-heat/cool
Afterheater
Alarm
Input
CO2
Aux
Aftercooler
J6
J11
J7
J8
J9
J10
J12J13
Power In
24VDC
24VDC
24VDC
12V
USB
Fail
OK
Status
Elec. PH
0V
0V
D+
D-
T
Fire
Therm
+-+-
Input Damper 1
Open
Open
Damper 2 ModBus
1
+
2
+
T1GTC
+16V
Standby
Switch
Hygro-
stat
Fail
Alarm
Filter
Alarm
+12V
SDA
SCL
TFAH
T2AH
T2AC
0 - 10V
0 - 10V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 - 10V
0 - 10V
J1 J2 J3 J4 J5
The input can be used to control the fan mode of the ventilation unit with the help of a 0-10V signal. The activation is carried out
as in the following diagram.
6.5 External fan activation input
The output can be used to externally display error messages and filter alarms. The output signal is 24VDC.
6.6 Error messages output
6 Wiring diagrams
Installation instructions / operating instructions – profi-air flat / flex connection box 9

7 Warranty
Deviating from the applicable GTCs, the manufacturer grants a warranty of 24 months from the time of completion of the
installation for the connection box. Warranty claims can only be asserted for material and / or construction defects occurring
within the warranty period. In case of a warranty claim, the connection box may not be removed without prior written consent
of the manufacturer.
8 Liability
The connection box has been developed and produced for applications in so-called comfort ventilation systems.
Any other application is considered “improper” and can lead to damage to the ventilation unit or personal injury which the
manufacturer cannot be held liable for.
9 Disposal
Please do not dispose of the connection box with the normal household waste; please ask your municipal waste consulting
authority about collection points and recycling possibilities.
Warranty expires if:
■ the warranty period ends.
■ parts not provided by the manufacturer are installed.
■ unauthorised changes or modifications to the unit are made.
The manufacturer is not liable for damage attributed to the following causes:
■ Failure to comply with the safety, operating and maintenance instructions stated herein.
■ Installation of spare parts not provided or stipulated by the manufacturer. The responsibility for the use of such spare parts
rests solely with the installer.
■ Normal wear and tear.
Our “General Terms and Conditions” (please see www.fraenkische.com) apply additionally in their currently valid form.
Installation instructions / operating instructions – profi-air flat / flex connection box
10

Notes
Installation instructions / operating instructions – profi-air flat / flex connection box 11

EN.70144/3.02.21 | Subject to change without notice | Cat. no. 5000-1342-00 | 02/2021
FRÄNKISCHE Rohrwerke Gebr. Kirchner GmbH & Co. KG | Hellinger Str. 1 | 97486 Königsberg/Germany
Phone [phone] | Fax [phone] | [e-mail] | www.fraenkische.com