SCHOOLAIR-D-HV
SCHOOLAIR
Rotary heat recovery unit
SCHOOLAIR
Tested to VDI 6022
SCHOOLAIR 
Filter change
SCHOOLAIR
Water connections
SCHOOLAIR
Control system connection by others
SCHOOLAIR-D-HV
SCHOOLAIR
SCHOOLAIR
SCHOOLAIR 
SCHOOLAIR
SCHOOLAIR

SCHOOLAIR-D-HV  

SUPPLY AND EXTRACT AIR UNIT WITH SWITCHOVER OPTION FOR SECONDARY AIR OPERATION, INCLUDING ROTARY HEAT RECOVERY UNIT AND HEAT EXCHANGER FOR INSTALLATION BELOW THE CEILING


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

  • Freely suspended installation or partially or fully integrated into the suspended ceiling
  • Acoustically optimised EC fans with low specific fan powers, SFP-1 according to EN 13779
  • Rotary heat recovery unit (heat recovery efficiency 75 %) with moisture recovery in winter
  • Highly efficient heat exchanger for heating as 2-pipe system
  • Heat exchanger to be connected on the right when seen from the room
  • Year-round use of heat recovery
  • Reduction of fine dust and pollen contamination due to integral filters that conform to VDI 6022 – filter class ISO ePM1 60 % and extract air ISO coarse 90 %
  • 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 units

General information

SCHOOLAIR-D-HV-0-2/3355×405×1030/0/C3

School ventilation unit – ceiling installation

Ventilation unit for ceiling installation TROX SCHOOLAIR-V-HV with supply and extract air function, rotary heat recovery unit and switchover option to secondary air operation (air quality dependent) as well as heat exchanger for installation in the ceiling:

  • One unit per room fulfils the increased fresh air requirements for a classroom

  • Suitable for 4 different installation situations

    • Completely suspended ceiling, bottom edge of the ventilation unit flush with the suspended ceiling

    • Bulkhead (partially suspended ceiling), bottom edge of the ventilation unit flush with the bulkhead

    • Completely suspended ceiling, bottom edge of the ventilation unit not flush with the suspended ceiling (partially integrated)

    • Freely suspended unit

  • 2-part device casing made of galvanised sheet steel, all necessary internal air duct sealed and lined, internal electrical cable penetrations sealed, exposed surfaces powder-coated (RAL 9010 GE 20 % – alternatively in RAL 7012 GE 20 %)

  • Sound- and heat-insulating lining on intake and discharge sides 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

  • Interior fixing points for simple installation on the ceiling

  • Connection to the outdoor air and exhaust air openings (provided by others) of the facade by means of perimeter closed-cell sealing tape on the rear side of the unit, d = 10 mm, the intake and discharge resistance of the construction provided by others should not exceed 20 Pa at a nominal volume flow rate, alternatively with duct connection

  • Extract air intake opposite the supply air opening; extract grille is included

  • Supply air is discharged on the underside of the ventilation unit through an innovative air terminal device that ensures complete ventilation of the room, whether it is installed at the front or at the opposite external wall

  • To facilitate simple maintenance, the device covers have hinges on one side and are secured on the other side with fastenings with special locks. The area of the device must be completely accessible from underneath for maintenance work and possible disassembly

  • Use of 2 plug fans with backward-curved blades, energy-saving EC technology, supply and extract air fans classified in category SFP 1 (< 500 W/(m³/s)) according to EN 16798-3:2017-11, a connected load of 600 VA must be taken into account for rating the connecting cable

  • Suitable for 3 speed levels (300, 500 and 700 m³/h as well as boost level with 1050 m³/h), signalling via device-internal single room control system, volume flow rate level correction by adjusting the control voltage subsequently is possible

  • Upstream and downstream sound attenuators for maximum reduction of the sound power level

  • The technical requirements of EU directive 1253/2014 for non-residential ventilation systems are fulfilled and documented in accordance with the directive

  • Integral rotary heat exchanger for heat recovery with high efficiency (heat recovery efficiency >75 %), modulating control by device-internal single room control system

  • Motorised shut-off dampers in the outdoor/exhaust air area, normally closed when there is no power by means of energy storage, actuator 230 V, open/close, signalling via device-internal single room control system

  • Automatic switching to secondary air mode (only with an air quality sensor) if the indoor air quality (measured, for example, with the integral CO2 sensor) lies within the limits defined beforehand. The fresh air damper closes, the self-powered secondary air damper opens and the extract air fan is switched off

  • Electrical components contained in the unit are completely wired with FSL-CONTROL III, control components are integrated in the unit. Cable for connection (connection not supplied by TROX) of the power supply (L, N, PE) with wire end ferrules led approx. 1 m out of the unit: As a transfer point to the electrical installation provided by others:
    • 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
      • 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 CO2
    • Supply air temperature measurement downstream of the heat exchanger

  • Outdoor air temperature measurement in the outdoor air intake

  • 2-pipe aluminium copper tube heat exchanger for air heating, 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), venting option per heating circuit. We recommend a connection to the pipe network (provided by others) with flexible hoses (not included in the TROX supply package) so that the heat exchanger can be easily removed for cleaning

  • Transfer points are the manually preassembled control components
    • Valve in the return: transfer with G ½" external thread, flat seal
    • Lockshield in the flow: transfer with G ½" external thread, flat seal
    • Fresh air filter as a pocket filter with non-woven glass fibres, ISO ePM1 (fine dust filter):

  • Filter class to ISO16890: ISO ePM1 60 %
    • Eurovent certification for fine dust filters
    • Meets the hygiene requirements of VDI 6022
    • High energy efficiency class according to Eurovent
    • Non-woven glass fibres, sewn
    • Enlarged filter area due to filter pockets
    • Low initial differential pressure and high dust holding capacity, ideal flow conditions due to wedge-shaped filter pockets
    • Quick installation and filter changing times due to easy, safe handling
    • Filter area >= 1.4 m²

  • Extract air filter with large filter area due to pleats
    • Filter class to ISO16890: ISO Coarse 90 %
    • Low differential pressures at high volume flow rates
    • Filter media made of synthetic fibres
    • Moisture-resistant, frame made of non-woven fibres
    • Tested to ISO 16890

  • Quick change of filters is possible, as the filter insert can be accessed once the cover part has been openedDifferential pressure measurement allows for filter monitoring, evaluation via integral single room control system

  • Units – dimensions and weight
    • Width: approx. 3355 mm (without fixing bracket)
    • Width: approx. 3555 mm (freely suspended version with side covers)
    • Height: approx. 405 mm 
    • Depth: approx. 1030 mm (without façade sealing)
    • Approx. 340 kg

Information technique

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

  • Function
  • TECHNICAL DATA
  • QUICK SIZING
  • SPECIFICATION TEXT
  • ORDER CODE
Decentralised supply and extract air units ventilate the room and dissipate the heating load according to the technical data. An EC centrifugal fan takes in the fresh air which then flows through the motorised shut-off damper and the fresh air filter. The fresh air then flows through the rotary heat exchanger, which can be switched off when it is more energy-efficient. If necessary, the air is heated or (for change-over systems this is an option) by the heat exchanger before it is discharged through the supply air grille; the supply air first flows along the ceiling (Coanda effect) and creates no draughts. The extract air first passes through the outdoor 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 room air quality is sufficient, FSL-CONTROL III closes the outdoor air dampers and switches over to secondary air operation, which is more energy efficient in any case. The control system compares the setpoint values of the indoor air quality with the CO2 actual values measured with the CO2 sensor and switches automatically between fresh air and secondary air operation. If the power fails, the fresh 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 ceiling with a medium velocity. The Coanda effect deflects the air jet upwards, where it remains attached to the underside of the ceiling, thereby increasing the throw distance. Once it has reached the wall, which is located opposite the air outlet, an air curtain is created. The supply air reaching the occupied zone has a very low velocity and rises at heat sources (e.g. people and devices), thus giving rise to natural convection. As a result, the air is primarily exchanged in these areas. The stale air rises to the ceiling from where it is extracted and led outside.

Width

3355 mm (freely suspended: 3555 mm)

Height

405 mm

Depth

1030 mm

Volume flow rate

300, 500, 700 m³/h (Boost 1050 m³/h)

Nominal volume flow rate

700 m³/h

Sound power level

29 – 53 dB(A)

Heat recovery efficiency

75 %

Maximum operating pressure, water side6 bar
Maximum operating temperature

75 °C

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

600 VA

Weight

340 kg


SCHOOLAIR-D-HV (example of 2-pipe construction – active heating)

Supply air flow rate

m³/h

300

500

700

1050

Total heating capacity

W

2850

4780

6120

7290

Room heating capacity

W

1884

3156

3881

3963

Air temperature inside the unit

°C

12.3

12.3

12.3

12.3

Supply air temperature

°C

39.8

39.9

37.6

32.3

Hot water flow rate

l/h

70

150

200

200

Water temperature, inlet

°C

70

70

70

70

Water temperature, outlet

°C

34.5

42.3

43.3

38.3

Water side pressure drop

kPa

2

8

12.5

12.5

Sound power level LWA

dB(A)

29

37

43

53

Sound pressure level with 8 dB system attenuation

dB(A)

21

29

35

45

Active power Pel

W

30

65

110

275

 

SCHOOLAIR-D-HV (example 2-pipe construction – isothermal supply air)

Supply air flow rate

m³/h

300

500

700

1050

Total heating capacity

W

1130

1830

2540

3280

Room heating capacity

W

230

351

468

175

Air temperature inside the unit

°C

12.5

12.5

12.5

12.5

Supply air temperature

°C

23.3

23.1

23.0

21.5

Hot water flow rate

l/h

30

55

90

120

Water temperature, inlet

°C

60

60

60

60

Water temperature, outlet

°C

27.4

31.1

35.5

36.2

Water side pressure drop

kPa

1.6

4.5

11

18

Sound power level LWA

dB(A)

29

37

43

53

Sound pressure level with 8 dB system attenuation

dB(A)

21

29

35

45

Active power Pel

W

30

65

110

275

SCHOOLAIR-D-HV-0-2/3355×405×1030/0/C3

School ventilation unit – ceiling installation

Ventilation unit for ceiling installation TROX SCHOOLAIR-V-HV with supply and extract air function, rotary heat recovery unit and switchover option to secondary air operation (air quality dependent) as well as heat exchanger for installation in the ceiling:

  • One unit per room fulfils the increased fresh air requirements for a classroom
  • Suitable for 4 different installation situations
    • Completely suspended ceiling, bottom edge of the ventilation unit flush with the suspended ceiling
    • Bulkhead (partially suspended ceiling), bottom edge of the ventilation unit flush with the bulkhead
    • Completely suspended ceiling, bottom edge of the ventilation unit not flush with the suspended ceiling (partially integrated)
    • Freely suspended unit
  • 2-part device casing made of galvanised sheet steel, all necessary internal air duct  sealed and lined, internal electrical cable penetrations sealed, exposed surfaces powder-coated (RAL 9010 GE 20 % – alternatively in RAL 7012 GE 20 %)
  • Sound- and heat-insulating lining on intake and discharge sides 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
  • Interior fixing points for simple installation on the ceiling
  • Connection to the outdoor air and exhaust air openings (provided by others) of the facade by means of perimeter closed-cell sealing tape on the rear side of the unit, d = 10 mm, the intake and discharge resistance of the construction provided by others should not exceed 20 Pa at a nominal volume flow rate, alternatively with duct connection
  • Extract air intake opposite the supply air opening; extract grille is included
  • Supply air is discharged on the underside of the ventilation unit through an innovative air terminal device that ensures complete ventilation of the room, whether it is installed at the front or at the opposite external wall
  • To facilitate simple maintenance, the device covers have hinges on one side and are secured on the other side with fastenings with special locks. The area of the device must be completely accessible from underneath for maintenance work and possible disassembly
  • Use of 2 plug fans with backward-curved blades, energy-saving EC technology, supply and extract air fans classified in category SFP 1 (< 500 W/(m³/s)) according to EN 16798-3:2017-11, a connected load of 600 VA must be taken into account for rating the connecting cable
  • Suitable for 3 speed levels (300, 500 and 700 m³/h as well as boost level with 1050 m³/h), signalling via device-internal single room control system, volume flow rate level correction by adjusting the control voltage subsequently is possible
  • Upstream and downstream sound attenuators for maximum reduction of the sound power level
  • The technical requirements of EU directive 1253/2014 for non-residential ventilation systems are fulfilled and documented in accordance with the directive
  • Integral rotary heat exchanger for heat recovery with high efficiency (heat recovery efficiency >75 %), modulating control by device-internal single room control system
  • Motorised shut-off dampers in the outdoor/exhaust air area, normally closed when there is no power by means of energy storage, actuator 230 V, open/close, signalling via device-internal single room control system
  • Automatic switching to secondary air mode (only with an air quality sensor) if the indoor air quality (measured, for example, with the integral COsensor) lies within the limits defined beforehand. The fresh air damper closes, the self-powered secondary air damper opens and the extract air fan is switched off.
  • Electrical components contained in the unit are completely wired with FSL-CONTROL III, control components are integrated in the unit. Cable for connection (connection not supplied by TROX) of the power supply (L, N, PE) with wire end ferrules led approx. 1 m out of the unit: As a transfer point to the electrical installation provided by others:
    • 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
      • 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 CO2 
    • Supply air temperature measurement downstream of the heat exchanger
  • Outdoor air temperature measurement in the outdoor air intake
  • 2-pipe aluminium copper tube heat exchanger for air heating, 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), venting option per heating circuit. We recommend a connection to the pipe network (provided by others) with flexible hoses (not included in the TROX supply package) so that the heat exchanger can be easily removed for cleaning
  • Transfer points are the manually preassembled control components
    • Valve in the return: transfer with G ½" external thread, flat seal
    • Lockshield in the flow: transfer with G ½" external thread, flat seal
    • Fresh air filter as a pocket filter with non-woven glass fibres, ISO ePM1 (fine dust filter):
  • Filter class to ISO16890: ISO ePM1 60 %
    • Eurovent certification for fine dust filters
    • Meets the hygiene requirements of VDI 6022
    • High energy efficiency class according to Eurovent
    • Non-woven glass fibres, sewn
    • Enlarged filter area due to filter pockets
    • Low initial differential pressure and high dust holding capacity, ideal flow conditions due to wedge-shaped filter pockets
    • Quick installation and filter changing times due to easy, safe handling
    • Filter area >= 1.4 m²
  • Extract air filter with large filter area due to pleats
    • Filter class to ISO16890: ISO Coarse 90 %
    • Low differential pressures at high volume flow rates
    • Filter media made of synthetic fibres
    • Moisture-resistant, frame made of non-woven fibres
    • Tested to ISO 16890
  • Quick change of filters is possible, as the filter insert can be accessed once the cover part has been opened
  • Differential pressure measurement allows for filter monitoring, evaluation via integral single room control system
Units – dimensions and weight
  • Width: approx. 3355 mm (without fixing bracket)
  • Width: approx. 3555 mm (freely suspended version with side covers)
  • Height: approx. 405 mm 
  • Depth: approx. 1030 mm (without facade sealing)
  • Approx. 340 kg


FSL-CONTROL III controller

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
  • A micro SD card with up to 2 GB storage space is integrated as a flash storage medium. 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 opening/closing heating and cooling valves or modulating bypass damper or supply air temperature control for isothermal ventilation
  • CO2-guided air quality control
  • Year-round heat recovery
  • 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/...):

  • 7 days with 10 switching points each
  • Automatic summer / winter time changeover
  • Temporal activation of night purge



CO2 sensor

COsensor (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


Outdoor 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 power rating, supply voltage 24 V DC, control voltage 0 – 10 V DC, power consumption 1 W, degree of protection: IP 54
  • Straight-way valve: 1 × small straight-way valve ½" as standard, pre-assembled hand-tight, PN 16, nominal width 10, 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 - 110 °C
  • Lockshields: 1x lockshield on both sides ½", manually pre-assembled, nominal width DN 15; ½ inch, valve body straight through with male thread on both sides, flat seal, for flow restriction and shut-off, operating temperature maximal 120 °C



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 different 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:



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, installation on 60 mm flush box or directly on the wall, NTC thermistor as sensor element, resistance 20 kΩ at 25 °C, dimensions (B x H x 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) installation on 60 mm flush box or directly on the wall, NTC thermistor as sensor element, resistance 20 kΩ at 25 °C, dimensions (B x H x 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 x H x T) 84 x 116 x 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 x H x 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, for mounting on the face of the wall or on 70 mm flush-mounted box, dimensions (B x H x T) 85 x 85 x 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 linear range, 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 class: 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 fluid temperature 1...110 °C


Pressure independent control valve:

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

  • 1 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 inch, 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 outer casing, connections of external devices
  • 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 (actuators, 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 and configuration instructions: air connections, heating/cooling connection, electrical connections, integration into the outer casing, connections of external devices, 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 (actuators, 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:
  • Check 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-DHVF2 / 3555 × 405 × 1030 / 0/C3 / MAT / MR / C / Z / A / HVR0.4 / KVR0.4
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1 Type
SCHOOLAIR-D Ventilation unit for ceiling installation
 
2 Variant
No entry required: Standard
HV High volume flow rate and rotary heat recovery unit
 
3 Installation situation
Installation flush with suspended ceiling
F Freely suspended installation or partially integrated in suspended ceiling (only SCHOOLAIR-D-HV)
 
4 Heat exchanger
2 2-pipe
4 4-pipe (only SCHOOLAIR-D-0)
 
5 Dimensions [mm]
B × H × T
1690 × 400 × 800 (2-​pipe)
1690 × 400 × 800 (4-​pipe)
3355 × 405 × 1030 (HV version flush with the ceiling)
3555 × 405 × 1030 (HV version freely suspended or partially integrated in suspended ceiling)
 
6 Exposed surface
RAL 9010 (GE 20 %)
P1 RAL 7012 (GE 20 %) or alternatively RAL Classic of your choice (20 %)
 
7 Control
OR Without control
C3 With FSL-CONTROL III
 
8 Control function
MA Master
SL Slave
 
9 Real-time clock, only master
No entry required: None
T with
 
10 Interface
No entry required: None
MT With Modbus TCP
MR With Modbus RTU
BI With BACnet IP
BM With BACnet MS/TP
 
11 Air quality sensor, only master
No entry required: None
C With COsensor
V With VOC sensor
 
12 Supply air temperature sensor
Z with
 
13 Fresh air temperature sensor, only master
No entry required: None
A with
 
14 Heating valve
HV with
 
15 Lockshield –  heating circuit
R with
 
16 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
 
17 Cooling valve (only SCHOOLAIR-D-0)
Only 4-pipe systems
KV with
 
18 Lockshield cooling circuit (only SCHOOLAIR-D-0)
R with
 
19 kVS value cooling valve (only SCHOOLAIR-D-0)
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-D-HV-F-2/3555×405×1030/0/C3-MA-T/C/Z/A/HV-R-0.40
SCHOOLAIR-DVentilation unit for ceiling installation
HVHigh volume flow rate and rotary heat recovery unit 
FFreely suspended installation
2With 2-pipe heat exchanger
0RAL 9010 (GE 20 %)
C3With FSL-CONTROL III
MAMaster construction
TWith real time clock
CWith COsensor
ZWith supply air temperature sensor
AWith fresh air temperature sensor
HV-R-0.40With straight-way valve (heating circuit) kvs 0.40 and lockshield

Variants, Dimensions, Product details

  • VARIANTS
  • DIMENSIONS
  • PRODUCT DETAILS
SCHOOLAIR-D-HV Dimensions
  • Installation below the ceiling slab and near an external wall
  • 2-part device casing for easier transport and simple installation
  • The ventilation unit is fitted with 2 hanging brackets to screw-fix it to the façade system or an external wall
  • Weather protection for the fresh air and exhaust air openings to be provided by others
  • The fresh air connection is provided by 2 ventilation openings (by others) in the facade system or external wall; the openings should preferably be sloping towards the outside
  • Free area of ventilation openings: 0.10 m² for each opening
  • 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

Téléchargements

Information produit

Certificats

Manuels d'utilisation

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Contact

Nous sommes à votre disposition

Veuillez préciser votre message et le type de demande
Tel.: +32 (0) 2/522 07 80

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Les champs marqués d'un (*) sont obligatoires.

Contact

Merci pour votre message !

Votre message a été envoyé et sera traité dans les plus brefs délais.
Notre département de traitement des demandes prendra contact avec vous dès que possible.
Pour les questions d'ordre général concernant les produits ou services, vous pouvez aussi nous appeler :
Tel.: +32 (0) 2/522 07 80