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FSL-CONTROL IIIfor decentralised ventilation units
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Straight-way valve

Straight-way valve

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Control panel with selector switch for surface mounting

Control panel with selector switch, for surface mounting, type Honeywell

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Control panel without selector switch for surface mounting

Control panel without selector switch, for surface mounting, type WRF04

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Control panel without selector switch for surface mounting

Control panel without selector switch for surface mounting, switch program Busch Jäger Future linear

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FSL-CONTROL III  

Stand-alone single room control equipment, especially for decentralised ventilation units, with bus communication as an option


Easy-to-operate single room control system as a plug and play solution: can be combined with façade ventilation units to provide demand-based ventilation and enable the control of the water-side components of the heating and cooling circuit

  • Year-round variable heat recovery – no reduction of fresh air in the winter
  • Demand-based room CO2- or VOC-guided fresh air supply and simultaneous individual temperature control
  • Low-noise operation at the touch of a button
  • Purge ventilation at the touch of a button
  • Parallel operation with fume cupboards
  • Individual indoor air quality adjustment
  • Heating requirement of secondary systems can be integrated, e.g. chilled ceilings
  • Room temperature or supply air temperature control
  • Comfortable configuration of devices via the web server – no operating software required

General information

Application

  • Single room control system to be combined with decentralised ventilation units from TROX
  • Ready to operate, pre-wired single room control system integrated into the unit or in a separate control box
  • Internally wired at the factory and individually tested before delivery
  • Control of all functions of a decentralised ventilation unit
  • Individual control strategies
  • Operation also possible without external peripheral systems: setup – connect – fresh air
  • Cost-effective integration into the central building management system
  • Pre-configured web server for further information and adjustments
  • Many different decentralised units can be implemented, but always the same controller and always the same data points

Special characteristics

  • Simple integration into the central building management system via RS485 or Ethernet interface
  • Comfortable configuration of devices via the web server – no operating software required
  • Master-slave combination possible (maximum 10 slaves per master)
  • Automatic, energy-efficient switching between fresh air mode and secondary air mode (based on air quality, depending on unit)
  • Variable bypass damper for the heat recovery control
  • Heat recovery all year round
  • Cost-effective integration into the central building management system – reduced data points improve overview and operability
  • Read-out of slave data via the central BMS interface of the master – significantly reduced number of bus participants
  • Integrated all-room network: all devices in the room work the same with only one connection to the central building management system
  • 13 digital switch contacts for connection of peripheral systems provided by others and for simple higher-order controls and monitoring
  • Permanent internal data logging – retrospective monitoring, error analysis and operational optimisation
  • Software update and adjustment of parameters via IP connection from a central location on all devices
  • Remote diagnostics via IP connection

Variants

Optional equipment and accessories

  • Various sensors, e.g. temperature, humidity or indoor air quality sensor
  • Real-Time-Clock (RTC) for the implementation of time-dependent operating modes (7 different profiles, 10 switch points per profile)
  • Bus communication possible via

    •          Modbus RTU
    •          Modbus TCP
    •          BACnet MS/TP
    •          BACnet IP

  • Control panels (can be integrated into various switching programmes)
  • Electric valve actuators
  • Balancing and control valves (independent of pressure)


Standards and guidelines

  • CE-certified
  • IEC 61000-4-11
  • IEC 61000-4-5
  • EN 60730-1
  • UL 60730-1
  • EN 60068-2-6 Fc
  • UL 60730-2-9
  • IEC 61000-4-6
  • CAN/CSA-E60730-1
  • CSA E60730-2-9
  • IEC 61000-4-4
  • EN 60068-2-27
  • EN 60730-2-9
  • IEC 61000-4-2
  • IEC 61000-4-3
  • EN 55011
  • DE EN 61000-3-2
  • DE EN 61000-3-3
  • DIN EN 61000-6-2


Construction

  • Depending on the unit variant the control components are either fitted inside the unit or in a separate box


Materials and surfaces

  • Casing made of sheet steel, powder-coated RAL 9005 (unless already integrated into the decentralised ventilation unit)


Functional description

Each decentralised ventilation unit has its own controller. This controls all functions that are necessary for operation, e.g. providing the control signal for fans and actuators. Through configuration and special software and hardware extensions, the existing controller is converted into a master controller that is required at least once in the room. Additional inputs and interfaces allow for the connection of components that are required for room control. The master controller can be extended using the RTC interface with a timer or Modbus RTU, Modbus TCP, BACnet MS/TP or BACnet IP interface for connection to a central BMS provided by others.

Technical information

Technical data, Specification text, Order code

  • TECHNICAL DATA
  • SPECIFICATION TEXT
  • ORDER CODE

Operating temperature-20 – 60 °C
Relative humidity5 – 95%, no condensation
Air pressure> 700 hPa
Storage temperature-30 to 70 °C
Power consumption (depending on equipment)14 W


FSL-CONTROL III is described as stand-alone single room control equipment with a simple timer. Optional expansions, such as connection to the central BMS (provided by others) via Modbus or NACnet, humidity sensors, return flow temperature sensors, electromotive valve actuators or pressure-independent control valves are included in the product range, but must be replaced with the standard components in the following description. A room temperature signal is also required. Various room control panels and sensors are available for this purpose. The corresponding optional equipment can be found in the appendix of the following standard equipment for room-autonomous operation.

TROX control module FSL-CONTROL III (order code ... -C3-MA ...)

Single room controller for DIN rail assembly in the device or in a separate control casing. 42 digital or analogue inputs and outputs. A MicroSD card is integrated flash memory. The trend data is stored here and can be accessed via the RJ45 service socket or optionally via Ethernet. Equipped at the factory with a software package for master units specially developed for decentralised ventilation units. The software enables simple master-slave communication via Modbus RTU. Up to 10 slave devices can be connected to one master device. The software provides 3 operating modes (Off, Automatic and Manual), 3 operating modes (Present, Absent and Standby) and 4 operating mode overrides (Boost, Ward, Night Ventilation and Fan Forced Circuit).

Basic distinction between room temperature control by controlling heating and cooling valves or continuous bypass damper or supply air temperature control for isothermal ventilation. CO2- or VOC-guided air quality control. Year-round heat recovery use.

Integrated web server for simple configuration, commissioning and remote monitoring of the unit.


Filter monitoring
Configurable digital inputs (DI), e.g. for connection (by others) of PIR sensor, window contacts, holiday switching, etc. Alarm signals type A (switch-offs) and type B (notifications).


Real-Time-Clock (RTC / real-time clock) (order code ...-T/...)
Component of the Master Software Package. Enables a simple timer, 7 days with 10 switching points each. Automatic summer/winter time changeover. Temporal activation of night purge.


CO2sensor (order code .../C/...)
Sensor arranged in the extract air intake of the master unit for recording the indoor air quality and corresponding control of the fresh air flow rate. Measurement via an NDIR sensor, which works on an infrared basis and compensates for any contamination by its 2-beam measurement principle. Measuring range 0 – 2000 ppm.


VOC sensor (order code .../V/...)
Sensor arranged in the extract air intake of the master unit for recording the indoor air quality and corresponding control of the fresh air flow rate. Measurement via a micro metal oxide sensor with regular automatic calibration. Measuring range 0 – 2000 ppm CO2-equivalent.

Supply air temperature sensor (order code .../Z/...)
Supply air temperature sensor with NTC thermistor as sensing element, resistance 10 kΩ at 25 °C, measuring range 0 – 50 °C. Especially fast response time due to perforated measuring tip.


Outdoor air temperature sensor (order code .../A/...)
Outdoor air temperature sensor with NTC thermistor as sensing element, resistance 10 kΩ at 25 °C, measuring range -30 – 50 °C.

Water-side components (order code .../HV-R- .../KV-R- …)
Valve actuators:
1 × / 2 × thermoelectric actuator for opening and closing valves, with position indicator, incl. pluggable power rating, supply voltage 24V DC, control voltage 0 - 10 V DC, power consumption 1 W, degree of protection: IP 54.
Straight-way valves:
1 × / 2 × straight-way small valve 1/2" standard, manually preassembled, PN 16, DN 10, kvs 0.4 (alternatively 0.25, 0.63 or 1.0 m³/h – please state the required kvs value), threaded connection G 1/2B, operating fluid temperature 1 – 110 °C.
Lockshields:
1 × / 2 × lockshield on both ends 1/2", manually preassembled, nominal width DN 15; 1/2", valve casing straight through with male thread on both sides, flat sealing, for regulation and shut-off, operating temperature max. 120 °C.


TROX control panels for FSL-CONTROL III
At least one room temperature signal is required per room. There are a number of variants of TROX control panels available, optionally with or without selector switch. Additionally we offer a room temperature sensor RTF without control elements. Alternative control panels provided by the customer must be connected via bus communication.


Control panel with selector switch for surface mounting
Supplied loose as additional part, push button, set point value adjustment (white or blue), status LED, 3-stage selection as well as off and automatic, sensor: NTC 20 kΩ, degree of protection: IP 20, assembly: wall-mounted or on 60 mm flush-mounted box, dimensions (H × W × D): 104 × 99 × 30 mm, colour: white/blue.


Control panel without selector switch for surface mounting
Supplied loose as additional part, push button, set point value adjustment, status LED, sensor: NTC 10 kΩ, degree of protection: IP 20, assembly: wall-mounted or on 70 mm flush-mounted box, dimensions (W × H × D): 84 × 116 × 24 mm, colour: light grey/white.


Control panel without selector switch for flush mounting, suitable for switching programme Berker S.1
Supplied loose as additional part, push button, set point value adjustment, status LED, sensor: NTC 20 kΩ, degree of protection: IP 20, assembly: on 60 mm flush-mounted box, dimensions (W × H × D): 80 × 80 × 20 mm, colour: polar white with gloss finish.


Room temperature sensor TROX RTF3 for surface mounting
Supplied loose as additional part, room sensor without control elements, sensor: NTC 10 kΩ, degree of protection: IP 20, assembly: wall mounted or on 70 mm flush-mounted box, dimensions (W x H x D) 85 x 85 x 30 mm, colour: RAL 9010



Optional equipment to increase the comfort of the FSL-CONTROL III

Electromotive valve actuator
As an alternative to the standard installed thermoelectric actuator: 1 ×/2 × thermoelectric actuator for opening and closing valves, supply voltage 24 V AC/DC, maximum power consumption 2.5 VA, signalling of control signal 0 – 10 V DC, permissible operating fluid temperature 1 – 110 °C.


Pressure independent control valve
As an alternative to the standard installed straight-way small valve: 1 x / 2 x pressure-independent control valve, manually pre-assembled, with modulating open and close control in combination with an externally adjustable dynamic volume flow controller, with full valve authority, nominal width DN 10, ½", valve casing straight through with male thread on both ends, flat sealing, operating fluid temperature 0 - 120 °C


Interface for connection to central building management system (BMS) provided by others:
To increase comfort, we recommend integration into a central BMS provided by customer (not included in the TROX supply package).
Available interfaces:

  • Modbus TCP (Ethernet) including web server (order code .../MT/...)
  • Modbus RTU (RS 485) including web server (order code .../MR/...)
  • BACnet IP (Ethernet) including web server (order code .../BI/...)
  • BACnet MS/TP (RS 485) including web server (order code .../BM/...)

C3MATMT/C/Z/A/HVR0,4/KVR0,63
| | | | | | | ||||| |
1 2 3 4 5 6 7 89101112 13


1 Accessories

C3 With FSL-CONTROL III
 
2 Variant
MA Master
SLSlave
 
3 Real-time clock, only master
No entry: none
T With
 
4 Interface
No entry: none
MR With Modbus RTU
MT With Modbus TCP
BI With BACnet IP
BM With BACnet MS/TP
 
5 Air quality sensor, master only
No entry: none
C With CO2-Sensor
V With VOC sensor
 
6 Supply air temperature sensor
No entry: none
Z With
 
7 Outdoor air temperature sensor, Master only
No entry: none
A With
 
8 Valve – heating circuit
No entry: none
HV With
 
9 Lockshield – heating circuit
No entry: none
R With
 
10 kVS value – heating valve
0.25 Straight-way valve
0.40 Straight-way valve
0.63 Straight-way valve
1.00 Straight-way valve
F0.50 Pressure independent control valve
 
11 Cooling valve

For 4-pipe systems only
KV With
 
12 Lockshield – cooling circuit
R With
 
13 kVS valve – cooling valve
0.25 Straight-way valve
0.40 Straight-way valve
0.63 Straight-way valve
1.00 Straight-way valve
F0.50 Pressure independent control valve

Wiring

  • WIRING

General information

Use only cables that are designed for the supply voltage for which they will be used. The length and cross section as well as any contact resistance may increase voltage losses. The power rating of each decentralised ventilation unit in accordance with the following table must also be considered.

The selection of cable types and the sizing of the cables must be carried out by the electrician laying the cables. This job must only be carried out by specialist electrical companies. For the sizing of the cables, the connecting cables are listed below.

Power ratings

Horizontal sill installation

  • FSL-B-ZAB/SEK: Apparent power 234 VA
  • SCHOOLAIR-B: Apparent power 238 VA
  • SCHOOLAIR-B-HE: Apparent power 547 VA
  • SCHOOLAIR-B-HV: Apparent power 617 VA

 

Vertical sill installation

  • SCHOOLAIR-V-2L: Apparent power 226 VA
  • SCHOOLAIR-V-4L: Apparent power 226 VA
  • SCHOOLAIR-V-1800: Apparent power 217 VA
  • SCHOOLAIR-V-HE: Apparent power 592 VA
  • SCHOOLAIR-V-HV: Apparent power 647 VA
  • SCHOOLAIR-V-HV-EH: Apparent power 2247 VA

 

Ceiling installation

  • FSL-D-ZAB/SEK: Apparent power 197 VA
  • SCHOOLAIR-D-2L: Apparent power 197 VA
  • SCHOOLAIR-D-4L: Apparent power 197 VA
  • SCHOOLAIR-D-HV-2L: Apparent power 677 VA

 

Underfloor installation

  • FSL-U-ZAS: Apparent power 326 VA

 

Note: Please also note the rating plate on the decentralised ventilation unit.


Supply voltage

  • 230 V AC ± 10%
  • A connecting cable 3 × 1.5 mm² (L, N, PE) with a length of at least 1 m is used


Connection building management system (central BMS)

Master device

  • Modbus TCP // BACnet IP via a standard network cable with RJ45 plug connector
  • Modbus RTU // BACnet MS/TP via a shielded cable, e.g. Unitronic BUS LD 2 × 2 × 0.22 mm² (or equivalent)


Slave device

  • If a slave device is connected using a standard cable with RJ45 plug socket to the central building management system, the current parameters can be displayed and set using the IP address and browser
  • Without connecting the slave devices to the central building management system, a selection of data points can be called up using the connected master


Connection TROX Peripherals

Control panel

To prevent interferences, these cables must be shielded, e.g. LiYCY 5 x 0.5 mm² (or equivalent)

 Communication master/slave

  • The devices are connected by the customer with a shielded cable, e.g. Unitronic BUS LD 2 × 2 × 0.22 mm² (or equivalent)
  • A resistance of 120 Ω must be ensured on the first and last BUS participant

 

Connection of digital switch contacts (inputs and outputs)

  • To prevent interferences, these cables must be shielded, e.g. LiYCY 2 x 0.5 mm² (or equivalent)

 


Control panel

See pictures.


Communication master/slave

  • The ventilation units can be operated within a control zone as master and slave in the network
  • The master transfers the most important measured values to the slave devices
  • Up to a maximum of 10 slave devices can be connected to one master device


Digital switch contacts (inputs and outputs)

  • Using digital inputs and outputs, information can be sent to the central building management system without a connection.
  • 6 inputs and 7 outputs are available.
  • All contacts can be configured as NO or NC contacts.
  • Digital switch contacts can be used for various functions.

X3FunctionOpenClosedCable break safety device
1Fume cupboard switchInactiveActive
2ChangeoverHeatingCoolingYes
3Operating enableOffAutomatic
4Fire emergency stopOffAutomaticYes
5Window contactOffAutomaticYes
6PIR sensorvalid operating modeOccupied


 

Communication from device to central building management system


FSL-CONTROL III data pointsModbus RegisterBACnetRecommended
Output Operating mode9100Multistate Input Value (7) Instance 0Yes
Output Operating mode9101Multistate Input Value (7) Instance 1Yes
Output Operating mode override9102Analog Input Value (0) Instance 27Yes
Operating state9103Analog Input Value (0) Instance 28
Output Type of ventilation9104Multistate Input Value (7) Instance 2
Output of current supply air temperature9105Analog Input Value (0) Instance 0Yes
Output current outdoor temperature9106Analog Input Value (0) Instance 1Yes
Output current room temperature9107Analog Input Value (0) Instance 2Yes
Output current return temperature9108Analog Input Value (0) Instance 3
Output current flow temperature9109Analog Input Value (0) Instance 4
Output current room/supply air temperature offset9110Analog Input Value (0) Instance 5
Output Overtime activation9111Binary Value (5) Instance 7
Output Temperature upper limit9112Analog Input Value (0) Instance 6Yes
Output Temperature lower limit9113Analog Input Value (0) Instance 7Yes
Output Supply air setpoint temperature9114Analog Input Value (0) Instance 8Yes
Ausgabe Fan stage9115Analog Input Value (0) Instance 29Yes
Output current room humidity9116Analog Input Value (0) Instance 9
Output current indoor air quality9117Analog Input Value (0) Instance 10Yes
Output Volume flow rate outdoor air9118Analog Input Value (0) Instance 11
Output Volume flow extract air9119Analog Input Value (0) Instance 12
Alarm A consolidated alarm9120Analog Input Value (0) Instance 16
Alarm B consolidated alarm9121Analog Input Value (0) Instance 17
Ausgabe Window contact9123Binary Value (5) Instance 6
Output Fire alarm9124Binary Value (5) Instance 5Yes
Number of connected devices9125Analog Input Value (0) Instance 13
Output Requirement room9126Multistate Input Value (7) Instance 3
Output Requirement valve9127Multistate Input Value (7) Instance 4
Output Control of master heating valve9128Analog Input Value (0) Instance 14Yes
Output Control of master cooling valve9129Analog Input Value (0) Instance 15Yes
Output Supply air temperature slave 19130Analog Input Value (0) Instance 18Yes
Output Supply air temperature slave 29131Analog Input Value (0) Instance 23
Output Supply air temperature slave 39132Analog Input Value (0) Instance 24
Output Supply air temperature slave 49133Analog Input Value (0) Instance 44
Output Supply air temperature slave 59134Analog Input Value (0) Instance 45
Output Supply air temperature slave 69135Analog Input Value (0) Instance 46
Output Supply air temperature slave 79136Analog Input Value (0) Instance 47
Output Supply air temperature slave 89137Analog Input Value (0) Instance 48
Output Supply air temperature slave 99138Analog Input Value (0) Instance 49
Output Supply air temperature slave 109139Analog Input Value (0) Instance 50
Output Control of heating valve slave 19140Analog Input Value (0) Instance 19Yes
Output Control of heating valve slave 29141Analog Input Value (0) Instance 22
Output Control of heating valve slave 39142Analog Input Value (0) Instance 25
Output Control of heating valve slave 49143Analog Input Value (0) Instance 30
Output Control of heating valve slave 59144Analog Input Value (0) Instance 31
Output Control of heating valve slave 69145Analog Input Value (0) Instance 32
Output Control of heating valve slave 79146Analog Input Value (0) Instance 33
Output Control of heating valve slave 89147Analog Input Value (0) Instance 34
Output Control of heating valve slave 99148Analog Input Value (0) Instance 35
Output Control of heating valve slave 109149Analog Input Value (0) Instance 36
Output Control of cooling valve slave 19150Analog Input Value (0) Instance 20Yes
Output Control of cooling valve slave 29151Analog Input Value (0) Instance 21
Output Control of cooling valve slave 39152Analog Input Value (0) Instance 26
Output Control of cooling valve slave 49153Analog Input Value (0) Instance 37
Output Control of cooling valve slave 59154Analog Input Value (0) Instance 38
Output Control of cooling valve slave 69155Analog Input Value (0) Instance 39
Output Control of cooling valve slave 79156Analog Input Value (0) Instance 40
Output Control of cooling valve slave 89157Analog Input Value (0) Instance 41
Output Control of cooling valve slave 99158Analog Input Value (0) Instance 42
Output Control of cooling valve slave 109159Analog Input Value (0) Instance 43


Communication from the  central BMS to the device


FSL-CONTROL III data pointsModbus RegisterBACnetRecommended
Default operating mode9000Multi State Value (9) Instance 0Yes
Default Operating mode9001Multi State Value (9) Instance 1Yes
Default Operating mode override9002Analog Value (2) Instance 13Yes
Default current outdoor temperature9003Analog Value (2) Instance 0Yes
Default Temperature limit cooling9004Analog Value (2) Instance 1Yes
Default Temperature limit heating9005Analog Value (2) Instance 2Yes
Default current room temperature9006Analog Value (2) Instance 3Yes
Default Room air temperature setpoint9007Analog Value (2) Instance 4
Default Offset to the room temperature setpoint9008Analog Value (2) Instance 5Yes
Default Supply air temperature setpoint9009Analog Value (2) Instance 6
Default Offset to the supply air temperature setpoint9010Analog Value (2) Instance 7
Default current relative room air humidity9011Analog Value (2) Instance 8
Default Change over operation9012Multi State Value (9) Instance 2
Default Fan stage9013Analog Value (2) Instance 9
Default Room air quality (internal)9014Analog Value (2) Instance 10
Default Outdoor air quality (external)9015Analog Value (2) Instance 11
Default Volume flow rate difference9016Analog Value (2) Instance 12
Default Fire emergency stop9017Binary Value (5) Instance 0Yes
Default Window contact9018Binary Value (5) Instance 1
Default Overtime9020Binary Value (5) Instance 2
Default Filter reset9021Binary Value (5) Instance 3Yes

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