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Tested to VDI 6022

Tested to VDI 6022

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Plate heat exchanger

 

Cross flow heat recovery unit

 

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SCHOOLAIR-V, Water connections

Water connections

 

 

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Inspection access to filter and heat recovery unit

 

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Levelling foot

Levelling foot

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SCHOOLAIR-V-1800

Supply and extract air unit with switchover option to secondary air operation, including cross flow heat recovery unit and heat exchanger for vertical installation on the façade

Ready-to-operate decentralised ventilation unit that provides good comfort levels and is used for the ventilation of internal spaces such as classrooms, conference rooms and day nurseries

  • Acoustically optimised EC fans with low specific fan power, SFP = 1 to EN 13779
  • Cross flow heat recovery unit (heat recovery efficiency 57 %)
  • Construction height of only 1800 mm
  • Highly efficient heat exchanger as 2-pipe or 4-pipe system
  • Heat exchanger connection is on the right when seen from the room
  • Condensate drip tray with or without condensate drain
  • Heat recovery all year round (optional)
  • Reduced fine dust and pollen contamination due to integral filters that conform to VDI 6022 – filter class ISO ePM1 65% and extract air ISO coarse 50%
  • Easy filter change, no tools required
  • Motorised shut-off dampers, normally closed (NC)
  • Installation without interruption to the operations of the respective school


Optional equipment and accessories

  • Modular control system FSL-CONTROL III, specially for decentralised ventilation systems
  • Wood panelling as outer casing in various colours, with TROX ventilation grilles for supply air and extract air (assembly kit)

 


General Information

Functional description

Decentralised supply and extract air units for room ventilation and for dissipating cooling loads and heat loads. An EC centrifugal fan takes in the outdoor air which then flows through the motorised shut-off damper and the outdoor air filter. The outdoor air then flows through the cross flow heat recovery unit, which can be switched off if it is more energy efficient.

If necessary, the air is heated or cooled by the heat exchanger before it is discharged to the room as a displacement flow. The extract air first passes the extract air filter, then flows through the heat recovery unit, the extract air fan and the motorised shut-off damper before it is discharged to the outside as exhaust air. If the indoor air quality is sufficient, FSL-CONTROL III closes the outdoor air dampers and changes to secondary air operation, which is more energy efficient in any case. The control system compares the room air quality setpoint value to the actual value measured by the CO2sensor and switches automatically between outdoor air and secondary air operation.

If the power fails, the outdoor air and exhaust air dampers are closed to ensure fire protection and frost protection and to avoid draughts. This is ensured by a capacitor in each actuator.

The supply air is discharged near the external wall and with a medium velocity between 1.0 and 1.5 m/s. Due to the induction effect the supply air velocity is rapidly reduced. As a result, in cooling mode, the supply air displaces the room air over the entire floor area. The convection from people and other heat sources causes the outdoor air to rise and create comfortable conditions in the occupied zone.


Technical information

Function, Technical data, Quick sizing, Specification text, Order code

  • Function
  • Technical data
  • QUICK SIZING
  • SPECIFICATION TEXT
  • ORDER CODE

Width

604 mm

Height

1800 mm

Depth

370 mm

Volume flow rate

150, 230, 280 m³/h (boost 350 m³/h)

Nominal volume flow rate

280 m³/h

Sound power level

31 – 47 dB(A)

Heat recovery efficiency

57 %

Maximum operating pressure, water side6 bar
Maximum operating temperature

75 °C

Supply voltage230 V AC ±10 %, 50/60 Hz
Power rating

217 VA

Weight

85 kg

SCHOOLAIR-V-1800 (2-pipe construction – heating, example)

Supply air flow rate

m³/h

150

230

280

350

Water side pressure drop

kPa

2.8

7.1

10.5

14.5

Sound power level LWA

dB(A)

32

38

42

47

Sound pressure level with 8 dB system attenuation

dB(A)

24

30

34

39

Active power Pel

W

25

37

48

68

Total heating capacity

W

2800

4170

4940

5870

Room heating capacity

W

822

1152

1281

1333

Air temperature inside the unit

°C

-12

-12

-12

-12

Supply air temperature

°C

37.4

36.0

34.7

32.4

Condensate

g/h

0

0

0

0

Hot water flow rate

l/h

70

120

150

180

Water temperature, inlet

°C

60

60

60

60

Water temperature, outlet

°C

25.3

29.8

31.4

31.6


 SCHOOLAIR-V-1800 (2-pipe system – isothermal air discharge, example)

Supply air flow rate

m³/h

150

230

280

350

Total heating capacity

W

2330

3500

4190

5130

Room heating capacity

W

175

207

187

140

Air temperature inside the unit

°C

-16

-16

-16

-16

Supply air temperature

°C

24.5

23.7

23.0

22.2

Condensate

g/h

0

0

0

0

Hot water flow rate

l/h

50

85

110

150

Water temperature, inlet

°C

60

60

60

60

Water temperature, outlet

°C

19.7

24.3

27.0

30.4

Water side pressure drop

kPa

4.8

12.3

16.5

18.1

Sound power level LWA

dB(A)

32

38

42

47

Sound pressure level with 8 dB system attenuation

dB(A)

24

30

34

39

Active power Pel

W

25

37

48

68



SCHOOLAIR-V-1800 (4-pipe construction, example)

Supply air flow rate

m³/h

150

230

280

350

Total cooling capacity

W

690

1050

1260

1510

Room cooling capacity

W

401

615

729

842

Air temperature inside the unit

°C

32

32

32

32

Relative humidity

%

40

40

40

40

Water content of the dry air

kg

11.9

11.9

11.9

11.9

Supply air temperature

°C

18.0

18.0

18.2

18.8

Condensate

g/h

0

0

0

0

Chilled water flow rate

l/h

135

230

280

300

Water temperature, inlet

°C

16

16

16

16

Water temperature, outlet

°C

20.4

19.9

19.9

20.3

Water side pressure drop

kPa

3.5

8.5

12

13

Total heating capacity

W

2680

4030

4920

5820

Room heating capacity

W

716

1022

1263

1286

Air temperature inside the unit

°C

-12

-12

-12

-12

Supply air temperature

°C

35.3

34.3

34.5

32.0

Condensate

g/h

0

0

0

0

Hot water flow rate

l/h

70

120

170

200

Water temperature, inlet

°C

60

60

60

60

Water temperature, outlet

°C

26.7

30.8

34.8

34.7

Water side pressure drop

kPa

2

5

8.5

11.5

Sound power level LWA

dB(A)

32

38

42

47

Sound pressure level with 8 dB system attenuation

dB(A)

24

30

34

39

Active power Pel

W

25

37

48

68

 

SCHOOLAIR-V-2/KM/600x1800x370/C3

Under sill units for vertical installation on an external wall

Please note:
The under sill ventilation unit variant described here is fitted with an integral single room control system that allows for independent operation in a classroom. The supplied controllers contain the standard control parameters for operation according to our control system description.
Ventilation unit for schools – vertical installation - master unit
TROX SCHOOLAIR-V-1800 ventilation unit for vertical installation on an external wall, for supply and extract air, also for secondary air operation (depending on room air quality), heat recovery and heating function:

  • Casing made of galvanised sheet steel, cover and sheet metal connections with deep-drawn threads and stainless steel cross-head screws, internal ducts sealed and lined as required, internal cable penetrations sealed, exposed surface powder-coated (RAL 9005, jet black)
  • Sound- and heat-insulating lining on suction and discharge side made of mineral wool faced with glass fibre scrim (material classification A, non-combustible according to DIN 4102, T1), erosion resistant up to air velocities of 20 m/s, or closed cell insulation material
  • The device meets the hygiene requirements of VDI 6022
  • Levelling feet, +40 mm
  • 4 slotted holes (6.5 × 13.5 mm) at the back of the unit (top and bottom, behind the heat exchanger) allow for fixing to the unit to a wall
  • Connection to the outdoor air and exhaust air openings (by others) in the wall at the back of the unit, with perimeter closed cell sealing tape, d=10 mm; the intake and outlet resistance of the construction provided by others should not exceed 20 Pa at the nominal volume flow rate
  • Extract air removal at the top front of the unit
  • 2 energy-saving EC centrifugal fans, supply and extract air fans classified as SFP 1 (< 500 W/(m³/s)) according to EN 16798-3:2017-11, electrical power consumption of the entire unit 280 m³/h <48 W at the nominal volume flow rate; the connecting cable has to be suitable for a power rating of 217 VAUse of 2 energy-saving EC centrifugal blowers, supply and extract air fan classified in category SFP 1 (< 500 W/(m³/s)) according to EN 16798-3:2017-11, electrical power consumption of the entire unit at a nominal volume flow rate of 280 m³/h < 48 W; for the rating of the connecting cable, a power rating of 217 VA has to be considered
  • Suitable for 3 speed levels (150, 230 and 280 m³/h as well as boost level of 350 m³/h), signalling by means of integral single room control system; the volume flow rate can be corrected at a later stage by adjusting the control voltage
  • The technical requirements of EU directive 1253/2014 for non-residential ventilation systems are fulfilled and documented in accordance with the directive
  • Sound power level with supply air or extract air operation at 150/230/280/350 m³/h = 31/38/42/47 dB(A) (equals a sound pressure level of 23/30/34/39 dB(A) with 8 dB room attenuation). The measurement values refer to sound power measurements of a single unit in a reverberation chamber according to accuracy class 1. Results may vary depending for some installation situation
  • Integral cross flow heat exchanger, recuperative, salt water resistant aluminium construction, highly efficient thanks to special plate design, plate spacing and package length, including condensate drip tray 
  • Electromotive bypass that allows the airflow to bypass the heat recovery unit, 24 V open/close actuator (modulating), signalling by means of integral single room control system
  • Motorised shut-off dampers in the outdoor air and exhaust air ducts, normally closed when there is no power (energy storage), 230 V open/close actuator, signalling with integral single room control system
  • Automatic switching to secondary air mode (only with an air quality sensor) if the room air quality (measured with the integral CO2sensor, for example) is within the defined limits. The outdoor air damper closes, the self-powered secondary air damper opens and the extract air fan is switched off.
  • Electrical components contained in the unit completely wired with FSL-CONTROL III, control components are integrated in the unit. Cable for connection (connection by others) to the power supply (L, N, PE), with wire end ferrules, approx. 1 m routed out of the casing:
    • Supply voltage (230 V): 3 wires, 3 × 1.5 mm² (L, N, PE)
    • Connection possibility for bus communication (optional), connection of control panel, etc. after opening the customer area of the controls. As a transfer point to the controls provided by others:
    • Rail mount terminals type Wago 260 for the connection (provided by others) of 
      • Digital inputs DI
      • Digital outputs DO
      • Master-slave connection RS485
      • Central BMS connection (optional) RS485
      • Control panel
      • RJ45 socket as service access to the user interface
    • The following sensors are arranged in the unit to control the single room control system (the actual room temperature is recorded at the control panel):
    • Indoor air quality sensor CO22 
    • Supply air temperature measurement after the heat exchanger
    • Outdoor air temperature measurement in the outdoor air intake
  • 2-pipe aluminium copper tube heat exchanger for air heating or air cooling (choice of 4-pipe system with additional cooling), matched to project-specific data, easily removable for cleaning (depends on the connection to the main pipe - by others, not included in the TROX supply package), drainage and venting option per heating/cooling circuit, arrangement on the room side on the right. We recommend flexible hoses (not part of the supply package) to connect the unit to the existing pipe network (by others) as they simplify removal of the heat exchanger for cleaning
  • Transfer points are the manually pre-assembled control components
    • Valves in the return: transfer with G ½" external thread, flat seal
    • Lockshields in the flow: transfer with G ½" external thread, flat seal 
  • Easy-to-clean condensate drip tray with condensate drain Ø 12 × 1 mm, made from galvanised sheet steel (powder-coated RAL 9005)
  • Outdoor air filter as Mini Pleat filter, class ePM1 (fine dust filter):
    • Filter class to ISO 16890: ISO ePM1 65%
    • Eurovent-certified
    • ePM1 filter media made from high-quality, wet-strengthened glass fibre paper are pleated, the spacers are made from thermoplastic hot melt adhesive and ensure uniform spacing (4 mm) between the pleats
    • The frame is made from moisture-resistant non-woven fibre with brackets (for pulling it out) and must not reduce the flow cross-section (filter size = flow cross-section)
    • Filter area >= 3.3 m²
    • Extract air filter class G3 (coarse dust filter) as flat filter medium, filter class according to ISO 16890: ISO coarse 50% 
  • Quick change of the filters is possible, since the filter insert can be opened without tools after opening the outer casing (by others) via user-friendly quarter-turn fasteners (accessibility must not be restricted by the under sill trim that is provided by others)
  • Closed cell sealing tapes for sealing and adaptation to the outer casing provided by others (not included in the TROX supply package)
  • The under sill trim (by others) needs to be perforated in areas to be specified for the supply air, and for extract air and secondary air intake, and must not restrict installation, deinstallation or maintenance
  • Clear distance between the front edge of the unit and the inner edge of the under sill trim approx. 30 mm
  • The front of the device must be completely accessible after disassembly of the outer casing


Unit dimensions and weight

  • Width: approx. 600 mm 
  • Height: approx. 1800 mm (without levelling feet)
  • Depth: approx. 370 mm (without seals)
  • Approx. 85 kg

 

FSL-CONTROL III Regler
Including control system FSL-CONTROL III, as described below:

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 TCP / Modbus RTU, BACnet MS/TP or BACnet IP, 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 text modules can be found in the appendix of the following standard equipment for room-autonomous operation. We recommend commissioning by our technical service. You will find related text modules below.

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

  • Single room controller for mounting on DIN mounting rail in the unit or in a separate control casing
  • 42 digital or analogue inputs and outputs
  • MicroSD card (at least 2 GB) as integral flash memory. The trend data is stored here and can be accessed via the RJ45 service socket.
  • 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 types of operation (Off, Automatic and Manual), 3 operating modes (Occupied, Unoccupied and Standby) and 4 operating mode overrides (Boost, Class, Night Ventilation and Fan Forced Circuit)
  • Basic distinction between room temperature control by controlling heating and cooling valves or modulating bypass damper or supply air temperature control for isothermal ventilation
  • CO22-guided air quality control
  • Year-round heat recovery use
  • Filter monitoring
  • Configurable DI, e.g. for connection (by others) of PIR sensors, window contacts, holiday switching, etc.
  • Alarm signals type A (= switch-offs) and type B (= notifications)
     


Real time clock (RTC)
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


CO2 sensor
CO22sensor (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 outdoor 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



Supply air temperature sensor
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


Fresh air temperature sensor
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
Water-side components (order code .../HV-R-…/KV-R-…):


  • Valve actuator: 1 × thermoelectric actuator for opening and closing valves, with position indicator, including pluggable connecting cable, supply voltage 24 V DC, control voltage 0 – 10 V DC, power consumption 1 W, degree of protection: IP 54
  • Straight-way valve: 1 × straight-way valve ½", mounted (finger-tight), PN 16, DN10, Kvs 0.4 (alternatively: 0.25, 0.63 or 1.0 m³/h – please specify the required Kvs value), threaded connection G 1/2B, fluid temperature 1 to 110 °C
  • Lockshield: 1x lockshield on both sides ½", mounted (finger-tight), nominal width DN 15; ½", straight through valve with male thread on both sides, flat sealing, for control and shut-off, operating temperature 120 °C max.


Optional control accessories
Optional equipment to increase the comfort of the FSL-CONTROL III:

TROX control panels for FSL-CONTROL III

At least one room temperature signal is required per room. There are several variants of TROX control panels available, optionally with or without step switching. Additionally we offer a room temperature sensor RTF without control elements. Alternative control panels provided by the customer must be connected via bus communication:

Digital control panels for surface mounting


For the operation and adjustment of the ventilation units.

  • Supplied loose as an accessory. Connection to master unit via Modbus serial line. Project-specific software including setpoint value adjuster, various status displays, selector switch, CO2 traffic light. Touch-sensitive colour display 3.5" 320 × 240 pixels. Sensor: NTC 10 kΩ. Degree of protection: IP 20. Type: Schneider TM172DCLWT. Dimensions (H × B × T): 120 × 86 × 25 mm, weight: 340 g, colour: white. Installation: wall mounting or on standard flush box. Supply: 24 V DC. Power consumption: 3.2 VA/1.3 W. Optional further design frames available for a surcharge on request.



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

  • Supplied loose as accessory, with room temperature sensor, setpoint adjuster (blue or white), override button, LED and 3-step switch as well as off and automatic, assembly on 60 mm flush box or directly on the wall, NTC thermistor as sensor element, resistance 20 kΩ at 25 °C, dimensions (B × H × T): 99 x 104 x 30 mm, operating temperature: 6 - 40 °C



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

  • Supplied loose as an accessory, with room temperature sensor, setpoint adjuster (blue or white), override button, LED and 3-step switch as well as off and automatic, casing made from pure white PVC0 (RAL 9010) assembly on 60 mm flush box or directly on the wall, NTC thermistor as sensor element, resistance 20 kΩ at 25 °C, dimensions (B × H × T): 84.5 x 84.5 x 25 mm, operating temperature: -35 – 70 °C


 

Control panels without selector switch for surface mounting:
Control panel without selector switch, for surface mounting, type Schneider

  • Supplied loose as additional part, with mode display, push button and setpoint adjustment, sensor NTC 10 kΩ, protection level: IP 20, wall mounting or on 70 mm flush-mounted box, dimensions (B × H × T) 84 × 116 × 24 mm, colour light grey/white


 

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

  • Supplied loose as additional part, with mode display, push button and setpoint adjustment, sensor NTC 20 kΩ, protection level: IP 20, dimensions (B × H × T) 84.5 × 84.5 × 25 mm



Room temperature sensor for surface mounting:
Room temperature sensor TROX RTF, surface mounting

  • Supplied loose as additional part, room sensor without control elements, measuring range: -35...70°C, sensor NTC 10 kΩ, screw terminal, d=1.5 mm, protection level IP 20, assembly wall mounted or on 70 mm flush-mounted box, dimensions (B × H × T) 85 × 85 × 30 mm, casing ABS in RAL 9010


Control panels without selector switch for flush mounting:

For manual operation of the ventilation units with a high-quality look and the matching design frame from a wide range of switch programmes, the unit is suitable for particularly design-oriented facilities.

Control panel without selector switch, for flush mounting, type Thermokon, switch from Berker S.1 range, polar white

  • Supplied loose as additional part, with mode display, push button and setpoint adjustment, sensor NTC 20 kΩ, protection level: IP 20
     


Control panel without selector switch, for flush mounting, type Thermokon, switch from Berker Q.3 range, white

  • Supplied loose as additional part, with mode display, push button and setpoint adjustment, sensor NTC 20 kΩ, protection level: IP 20

     

 

Control panel without selector switch, for flush mounting, type Thermokon, switch from Busch-Jäger future range® linear, white

  • Supplied loose as additional part, with mode display, push button and setpoint adjustment, sensor NTC 20 kΩ, protection level: IP 20

Further switch programmes on request.



Control panels without selector switch and without setpoint value adjuster for flush mounting:

Control panel without selector switch and without setpoint value adjuster, for flush mounting, type Thermokon, switch from Gira E2 range

  • Supplied loose as additional part, with mode display and button, sensor NTC 20 kΩ, protection level: IP 20


Further switch programmes on request



Electromotive valve actuator:

As an alternative to the standard installed thermoelectric actuator

  • 1 x electromotive actuator for opening and closing valves, supply voltage AC/DC 24 V, maximum power consumption 2.5 VA, signalling of control signal 3-point DC 0...10 V, permissible operating fluid temperature 1...110 °C




Pressure-independent control valve:

As an alternative to the standard installed straight-way small valve

  • 1 × 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 seal, fluid temperature 0 – 120 °C


 



Interface for connection to central building management system (BMS) provided by others: Modbus TCP interface including web server (order code .../MT/...)

To increase comfort, we recommend integration into a central building management system provided by others. FSL-CONTROL III offers the possibility to be connected to a central BMS provided by others using Modbus TCP protocol. Additionally incl. web server for simplified configuration, commissioning and remote monitoring of the device. The central BMS is not included in the supply package from TROX, only the interfaces listed above are available here.

  • Modbus TCP interface (Ethernet)



BACnet IP interface including web server (order code .../BI/...)

To increase comfort, we recommend integration into a central building management system provided by others. FSL-CONTROL III offers the possibility to be connected to a central BMS provided by others using BACnet IP protocol. Additionally incl. web server for simplified configuration, commissioning and remote monitoring of the device. The central BMS is not included in the supply package from TROX, only the interfaces listed above are available here.

  • BACnet IP interface (Ethernet)



Modbus RTU (order code .../MR/...)

To increase comfort, we recommend integration into a central building management system provided by others. FSL-CONTROL III offers the possibility to be connected to a central BMS provided by others using Modbus RTU protocol. The central BMS is not included in the supply package from TROX, only the interfaces listed above are available here.

  • Modbus RTU interface (RS485)


 



BACnet MS/TP (order code .../BM/...)

To increase comfort, we recommend integration into a central building management system provided by others. FSL-CONTROL III offers the possibility to be connected to a central BMS provided by others using BACnet MS/TP. The central BMS is not included in the supply package from TROX, only the interfaces listed above are available here.

  • BACnet MS/TP interface (RS485)


Commissioning of the decentralised ventilation units

Commissioning / parameter setting of decentralised ventilation units without connection to the central building management system

  • Visual inspection of the unit connections carried out by others for compliance with the respective installation specifications from the installation and configuration instructions: air connections, heating/cooling connection, electrical connections, integration into the installed outer casing, connections of external components
  • Checking and, if necessary, adapting the project parameters pre-set in the factory with regard to customer-specific adaptations
  • Functional test of the individual components (control elements, fans, valves, dampers, sensors)
  • Checking the project-specific control functions including any special functions such as volt-free switch contacts
  • Documentation of the device settings as well as their use in a service report. The service report must be signed by your company as the customer or your representative
  • The invoice is made as a flat rate, derived from the number of devices and distance

 

Commissioning / parameter setting of decentralised ventilation units with connection to the central building management system

  • Visual inspection of the unit connections carried out by others for compliance with the respective installation specifications from the installation and configuration instructions: air connections, heating/cooling connection, electrical connections, integration into the installed outer casing, connections of external components, central building management system connections
  • Checking and, if necessary, adapting the project parameters pre-set in the factory with regard to customer-specific adaptations
  • Functional test of the individual components (control elements, fans, valves, dampers, sensors)
  • Checking the project-specific control functions including any special functions such as volt-free switch contacts
  • Function test of the communication to the central BMS in cooperation with the ordered controls company:
    • Checking that the settings that are provided by others comply with the specifications in the installation and configuration instructions
    • Input test of the data points sent by the customer
    • Output test of the output data points
    • Trial operation of the operating conditions switchable by the central BMS
  • Documentation of the device settings as well as their use in a service report. The service report must be signed by your company as the customer or your representative
  • The invoice is made as a flat rate, derived from the number of devices and distance

 

Instruction in operation and maintenance

  • One-off instruction for the operation of the decentralised ventilation units consisting of:
    • Description of the equipment functions on the unit that has already been put into operation
    • Description of the room control panel and the room conditions that can be influenced by it
    • Description of maintenance work
  • The invoice is a flat rate and is carried out by the responsible sales representative

SCHOOLAIR-V04 / KM / 397 × 2350 × 359 / C3 / MAT / MR / C / Z / A / HVR0.4 / KVR0.4
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1 Type
SCHOOLAIR-V Vertical under sill ventilation unit
 
2 Variant
No entry required: Standard
HE High heat recovery percentage
HV  High volume flow rate and rotary heat exchanger for heat recovery
 
3 Heat exchanger
2 2-pipe
4 4-pipe
EH Electric air heater (SCHOOLAIR-V-HV)
 
4 Construction
KO Without condensate drain
KM With condensate drainage (SCHOOLAIR-V, SCHOOLAIR-V-1800, SCHOOLAIR-V-HV)
KR With condensate drain, extract air on the right when viewed from the room (SCHOOLAIR-V-HE)
KL With condensate drainage, extract air on the left when viewed from the room (SCHOOLAIR-V-HE)
 
5 Dimensions [mm]
B × H × T
397 × 2160 × 359 (2-​pipe)
397 × 2350 × 359 (4-​pipe)
600 × 1800 × 359 (2- or 4-pipe, construction 1800)
600 × 2000 × 408 (2- or 4-pipe, construction HE)
605 × 2200 × 413 (2- or 4-pipe, construction HV)
 
6 Control system
OR Without control
C3 With FSL-CONTROL III
 
7 Control function
MA Master
SL Slave
 
8 Real time clock, only master
No entry required: None
T With
 
9 Interface
No entry required: None
MT With Modbus TCP
MR With Modbus RTU
BI With BACnet IP
BM With BACnet MS/TP
 
10 Air quality sensor, only master
No entry required: None
C With COsensor
V With VOC sensor
 
11 Supply air temperature sensor
Z With
 
12 outdoor air temperature sensor, only master
No entry required: None
A With
 
13 Heating valve 
Only 2-pipe systems
HV With
 
14 Lockshield – heating circuit
R With
 
15 kVS 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
 
16 Cooling valve
For 4-pipe systems only
KV With
 
17 Lockshield – cooling circuit
R With
 
18 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

 
Order example: SCHOOLAIR-V-2/KM/600×1800×359/C3-MA-T/C/Z/A/HV-R-0.40

SCHOOLAIR-VVertical under sill ventilation unit
2With 2-pipe heat exchanger
KMWith condensate drain
C3With FSL-CONTROL III
MAMaster construction
TWith real time clock
CWith CO22sensor
ZWith supply air temperature sensor
AWith outdoor air temperature sensor
HV-R-0.40With straight-way valve (heating circuit) kvs 0.40 and lockshield

 

Dimensions, Product details

  • DIMENSIONS
  • Product details
SCHOOLAIR-V-1800 SCHOOLAIR-V-1800

Installation and commissioning

  • Under sill installation, floor-standing
  • Level adjustment using the 4 levelling feet (+40 mm)
  • 4 fixing points at the inside for screw-fixing the unit to the wall or ceiling slab; this allows for a very small casing size
  • Fresh air and exhaust air connections are provided by two ventilation openings in the façade system or external wall (to be provided by others), the openings should preferably be sloping towards the outside
  • Free area of ventilation openings: 0.035 m² for each outside air opening and exhaust air opening, and 0.11 m² for each supply air opening and extract air opening
  • Weather protection for the fresh air and exhaust air openings to be provided by others
  • Installation and connections to be performed by others; fixing, connection and sealing material to be provided by others
  • The water flow and return connections are on the right-hand side of the unit when seen from the room
  • Vents and drainage by others
  • The electrical connection is on the right-hand side of the unit when seen from the room
  • We recommend using flexible hoses to connect the unit to the pipework as they facilitate removing the heat exchanger for cleaning
  • The under sill trim provided by others must not obstruct installation or deinstallation of the unit or maintenance access on the front of the unit

Downloads

product information

certificates

operation manuals

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Our department for Service-Requests will contact you asap.
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Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265