Decentralised supply and extract air units ensure room ventilation. They dissipate the cooling loads and heat loads in accordance with 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 cross flow heat recovery unit and it can be switched off when it is sensible with regard to energy efficiency
and to protect the device..
If necessary, the air is heated or cooled by the heat exchanger before it is discharged to the room as a displacement flow (for 4-pipe systems, this is optional).
The extract air first passes through the fresh 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 changes to secondary air operation, which is more energy efficient in any case.
Here, the control unit compares the target values of the indoor air quality with the actual values measured at the CO2sensor 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 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 so that, in cooling mode, the supply air is discharged as a displacement flow over the entire floor area.
The convection from people and other heat sources causes the fresh air from the pool to rise and create comfortable conditions in the occupied zone.
Width | 1590 mm |
Height | 646 mm |
Depth | 420 mm |
Volume flow rate | 150, 200, 250 m³/h (boost 320 m³/h) |
Nominal volume flow rate | 250 m³/h |
Sound power level | 29 – 43 dB(A) |
Heat recovery efficiency | 60 % |
Maximum operating pressure, water side | 6 bar |
Maximum operating temperature | 75 °C |
Supply voltage | 230 V AC ±10 %, 50/60 Hz |
Power rating | 238 VA |
Weight | 80 kg |
X-CUBE/SCHOOLAIR-B: Heat recovery construction Type 3 (2-pipe version, active heating)
Supply air flow rate | m³/h | 150 | 200 | 250 | 320 |
Total heating capacity | W | 2520 | 3350 | 4250 | 5290 |
Room heating capacity | W | 706 | 934 | 1224 | 1422 |
Air temperature inside the unit | °C | -12.0 | -12.0 | -12.0 | -12.0 |
Supply air temperature | °C | 32.5 | 32.4 | 33.0 | 31.8 |
Hot water flow rate | l/h | 70 | 100 | 150 | 200 |
Water temperature, inlet | °C | 50 | 50 | 50 | 50 |
Water temperature, outlet | °C | 18.7 | 20.9 | 25.3 | 27.0 |
Water side pressure drop | kPa | 0.7 | 1.3 | 2.6 | 4.4 |
Sound power level LWA | dB(A) | 29 | 34 | 38 | 43 |
Sound pressure level with 8 dB system attenuation | dB(A) | 21 | 26 | 30 | 35 |
Active power Pel | W | 24 | 30 | 40 | 56 |
Air-side data Heating mode:
X-CUBE/SCHOOLAIR-B: Heat recovery construction Type 2 (2-pipe version – isothermal supply air)
Supply air flow rate | m³/h | 150 | 200 | 250 | 320 |
Total heating capacity | W | 1900 | 2500 | 3150 | 4020 |
Room heating capacity | W | 90 | 75 | 122 | 145 |
Air temperature inside the unit | °C | -12.0 | -12.0 | -12.0 | -12.0 |
Supply air temperature | °C | 21.6 | 21.0 | 21.3 | 21.2 |
Hot water flow rate | l/h | 50 | 70 | 100 | 150 |
Water temperature, inlet | °C | 50 | 50 | 50 | 50 |
Water temperature, outlet | °C | 16.9 | 19.0 | 22.6 | 26.7 |
Water side pressure drop | kPa | 0.8 | 1.5 | 2.8 | 5.7 |
Sound power level LWA | dB(A) | 29 | 34 | 38 | 43 |
Sound pressure level with 8 dB system attenuation | dB(A) | 21 | 26 | 30 | 35 |
Active power Pel | W | 24 | 30 | 40 | 56 |
Air-side data Heating mode:
X-CUBE/SCHOOLAIR-B: Heat recovery construction Type 2 (4-pipe version)
Supply air flow rate | m³/h | 150 | 200 | 250 | 320 |
Total cooling capacity | W | 690 | 910 | 1150 | 1450 |
Room cooling capacity | W | 384 | 512 | 640 | 799 |
Air temperature inside the unit | °C | 32.0 | 32.0 | 32.0 | 32.0 |
Relative humidity | % | 40 | 40 | 40 | 40 |
Water content of the dry air | g/kg | 11.9 | 11.9 | 11.9 | 11.9 |
Supply air temperature | °C | 18.0 | 18.0 | 18.0 | 18.2 |
Condensate | g/h | 0 | 0 | 0 | 0 |
Chilled water flow rate | l/h | 88 | 118 | 155 | 200 |
Water temperature, inlet | °C | 16 | 16 | 16 | 16 |
Water temperature, outlet | °C | 22.7 | 22.7 | 22.4 | 22.2 |
Water side pressure drop | kPa | 1.5 | 2.6 | 4.2 | 6.6 |
Total heating capacity | W | 2300 | 3080 | 3670 | 4360 |
Room heating capacity | W | 486 | 655 | 640 | 494 |
Air temperature inside the unit | °C | -12.0 | -12.0 | -12.0 | -12.0 |
Supply air temperature | °C | 28.6 | 28.7 | 26.8 | 24.1 |
Hot water flow rate | l/h | 90 | 150 | 180 | 200 |
Water temperature, inlet | °C | 50 | 50 | 50 | 50 |
Water temperature, outlet | °C | 27.8 | 32.2 | 32.3 | 31.0 |
Water side pressure drop | kPa | 0.7 | 1.8 | 2.5 | 3.0 |
Sound power level LWA | dB(A) | 29 | 34 | 38 | 43 |
Sound pressure level with 8 dB system attenuation | dB(A) | 21 | 26 | 30 | 35 |
Active power Pel | W | 24 | 30 | 40 | 56 |
Air-side data Cooling mode:
Air-side data Heating mode:
X-CUBE/SCHOOLAIR-B-2/KR/1590×646×420/C3
School ventilation unit – under sill installation – MASTER UNIT
Please note:
The described under sill ventilation unit variant is equipped with a single room control system arranged in the unit.
The supplied controllers contain the parameters of the standard control for operation according to our control description
Under sill ventilation unit TROX X-CUBE/SCHOOLAIR-B with supply and extract air function and switchover option to secondary air operation (air quality dependent), heat recovery and heating function for installation in front of the sill below the window sill:
Units - dimensions and weight:
Width: approx. 1590 mm (incl. fixing brackets)
Height: ca. 646 mm (levelling feet to top edge of unit, additional distance for extract air suction)
Depth: approx. 420 mm (without seals)
Weight: approx. 80 kg
FSL-CONTROL III controller
Including control system FSL-CONTROL III, as described below:
FSL-CONTROL III is described as a stand-alone single room control system with a simple timer. Optional expansions, such as integration into an on-site MCE/BACS via Modbus TCP, Modbus RTU, BACnet MS/TP or BACnet IP, humidity sensors, return temperature sensors, electromotive valve actuators or pressure-independent control valves, are included in the delivery programme, but must be exchanged for the standard components in the following description. A room temperature signal is also required. Various room control panels and sensors are available to provide this signal. Suitable optional equipment can be found after the following standard equipment for stand-alone operation. - please refer to: Optional control accessories. We recommend commissioning by TROX. You will find related text modules below.
TROX control module FSL-CONTROL III (order code ...-C3-MA ...):
Real time clock (RTC)
Real Time Clock (RTC/real time clock) (order code ...-T/...):
CO2 sensor
CO2 sensor (order code…/C/…):
Supply air temperature sensor
Supply air temperature sensor (order code .../Z/...):
Outdoor air temperature sensor
Outdoor air temperature sensor (order code .../A/...):
Water side components
Water-side components (Order code…/HV-R-…):
Valve actuator:
1 × thermoelectric actuator for opening and closing valves, with position indicator, including plug-in connecting cable, operating voltage 24 V DC, control voltage 0 - 10 V DC, power consumption 1 W, protection class: IP 54
Straight-way valve:
1 × small straight-way valve ½" standard, hand-tight pre-assembled, PN 16, DN 10, kvs 0.4 (alternatively 0.25, 0.63 or 1.0 m³/h - please let us know the required kvs value), straight-way valve body with external thread on both sides ½" flat sealing, media temperature 1 to 110 °C
Lockshield:
1 × lockshield on both sides ½", hand-tight pre-assembled, nominal width DN 15; straight-through valve body with external thread on both sides ½" flat sealing, for regulating and shut-off, maximum media temperature 120 °C
Optional control accessories
Optional equipment to increase the comfort of the FSL-CONTROL III:
TROX room control panels for FSL-CONTROL III
Digital room control panels for surface mounting:
For operation and adjustment of the ventilation units.
Control panels with selector switch for surface mounting:
Control panel with selector switch, type Thermokon, for surface mounting:
Control panels without selector switch for surface mounting:
Control panel without selector switch, type Thermokon, for surface mounting:
Room temperature sensor for surface mounting:
Room temperature sensor TROX RTF, surface mounting
Control panels without selector switch for flush mounting:
Other switch programmes on request.
Control panels without selector switch and without setpoint value adjuster, for flush mounting:
Other switch programmes on request
As an alternative to the thermoelectric actuator, installed as standard
Pressure-independent control valve
As an alternative to the small straight-way valve, installed as standard
BACnet IP interface including web server (order code .../BI/...)
Modbus RTU (order code .../MR/...)
BACnet MS/TP (order code .../BM/...)
Version as SLAVE DEVICE
Identical to the MASTER DEVICE, as described above, but with the following deviations:
Replacement filter set suitable for the appliance version
Commissioning of the decentralised ventilation units
Commissioning/parameterisation of the decentralised ventilation units without integration into an on-site MCE/BACS
Commissioning/parameterisation of the decentralised ventilation units with integration into an on-site MCE/BACS
Instruction in operation and maintenance
SA-B | – | – | 4 | – | 1 | / | KR | / | 1590 × 646 × 420 | / | C3 | – | MA | – | T | / | MR | / | C | / | Z | / | A | / | HV | – | R | – | 0,40 | / | KV | – | R | – | 0,40 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ||||||||||||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
No entry: Standard
3 Heat exchangerOrder example: SA-B-4-1-KR/1590×646×420/C3-MA-T/MR/C/Z/A/HV-R-0.40/KV-R-0.40
Type | SA-B | horizontal decentralised sill ventilation unit X-CUBE/SCHOOLAIR-B |
Variant | - | Standard |
Heat exchanger | 4 | 4-pipe |
Heat exchanger construction | 1 | Heat exchanger type 1 |
Construction | KR | with condensate drain and water connection right |
Nominal size [mm] | 1590×646×420 | Width 2100, height 750, depth 403 |
Control | C3 | with FSL-CONTROL III |
Control function | MA | Master |
Real time clock | T | with real time clock |
Interface | MR | with Modbus RTU |
Air quality sensor | C | with CO2sensor |
Supply air temperature sensor | Z | with supply air temperature sensor |
Outdoor air temperature sensor | A | with outdoor air temperature sensor |
Heating valve | HV | with thermoelectric actuator |
Lockshield – heating circuit | R | with lockshield |
kVS value – heating valve | 0.40 | 0.40 (straight-way valve) |
Cooling valve | KV | with thermoelectric actuator |
Lockshield – cooling circuit | R | with lockshield |
kVS value – cooling valve | 0.40 | 0.40 (straight-way valve) |
Order example: SA-B-4-1-KR/1590×646×420/C3-SL/MT/Z/HV-R-0.40/KV-R-0.25
Type | SA-B | horizontal decentralised sill ventilation unit X-CUBE/SCHOOLAIR-B |
Variant | - | Standard |
Heat exchanger | 4 | 4-pipe |
Heat exchanger construction | 1 | Heat exchanger type 1 |
Construction | KR | with condensate drain and water connection right |
Nominal size [mm] | 1590×646×420 | Width 2100, height 750, depth 403 |
Control | C3 | with FSL-CONTROL III |
Control function | SL | Slave |
Real time clock | - | - |
Interface | MT | with Modbus TCP |
Air quality sensor | - | - |
Supply air temperature sensor | Z | with supply air temperature sensor |
Outdoor air temperature sensor | - | - |
Heating valve | HV | with thermoelectric actuator |
Lockshield – heating circuit | R | with lockshield |
kVS value – heating valve | 0.40 | 0.40 (straight-way valve) |
Cooling valve | KV | with thermoelectric actuator |
Lockshield – cooling circuit | R | with lockshield |
kVS value – cooling valve | 0.25 | 0.25 (straight-way valve) |
Installation and commissioning
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Ние сме тук за Вас
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Тел.: +359 2 981 25 74 | Факс: +359 2 986 20 65
За контакти
Благодарим Ви за Вашето съобщение!
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За общи въпроси относно продукти или услуги можете да се свържете също с:
Тел.: +359 2 981 25 74 | Факс: +359 2 986 20 65