SCHOOLAIR-B-HE-2/KM/2090×750×420/C3
Under sill units for assembly horizontally on the facade
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 standard control parameters for operation according to our control system description.
School ventilation unit – under sill installation – MASTER UNIT
Under sill ventilation unit TROX SCHOOLAIR-B-HE with supply and extract air function and switchover to secondary air mode (depending on air quality), cross-counterflow heat recovery that can be used all year round as well as heating function, for installation on an external wall below the window sill:
Units – dimensions and weight:
Width: approx. 2090 mm (without levelling feet and fixing brackets)
Height: ca. 750 mm (levelling feet to top edge of unit, without space for extract air intake)
Depth: approx. 420 mm (without facade sealing)
Weight: approx. 115 kg
SEH Single room exhaust air
SRO Single room fresh air
SRS Single room supply air
SET Single room extract air
SEC Single room secondary air
1 Fresh air temperature sensor (optional)
2 Shut-off damper with actuator (exhaust air and fresh air)
3 Fine dust filter ePM1 65 %
4 EC fan (supply air and extract air)
5 Recuperator
6 Sound attenuator
7 Heating coil
8 Cooling coil (optional)
9 Supply air temperature sensor (optional)
10 Bypass damper with actuator (constant)
11 CO2 sensor (optional)
12 Extract air filter ISO coarse 55 %
Decentralised supply and extract air units for room ventilation and for dissipating cooling loads and heat loads. 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 counter flow heat recovery unit that can be switched off to protect the unit and 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 (for 4-pipe systems, this is optional). 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 changes 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 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 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 displaces the room air 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 | 2090 mm |
Height | 750 mm |
Depth | 420 mm |
Volume flow rate | 150, 225, 300 m³/h (boost 400 m³/h) |
Sound power level | 33 – 49 dB(A) |
Heat recovery efficiency | 88 % |
Maximum operating pressure, water side | 6 bar |
Maximum operating temperature | 75 °C |
Supply voltage | 230 V AC ±10 %, 50/60 Hz |
Weight | 115 kg |
SCHOOLAIR-B-HE (example of 2-pipe construction – active heating)
Supply air flow rate | m³/h | 150 | 225 | 300 | 400 |
Total heating capacity | W | 950 | 1480 | 2050 | 2690 |
Room heating capacity | W | 827 | 1232 | 1673 | 2191 |
Heat recovery efficiency | % | 90 | 87 | 85 | 83 |
Air temperature following heat recovery | °C | 18.7 | 18.0 | 17.6 | 17.1 |
Supply air temperature | °C | 37.5 | 37.4 | 37.7 | 37.4 |
Quantity of condensate | l/h | 0.5 | 0.7 | 0.9 | 1.1 |
Hot water flow rate | l/h | 30 | 50 | 80 | 120 |
Water temperature, inlet | °C | 60 | 60 | 60 | 60 |
Water temperature, outlet | °C | 32 | 34 | 38 | 41 |
Water side pressure drop | kPa | 1.5 | 3 | 6.5 | 13.5 |
Sound power level LWA | dB(A) | 33 | 40 | 44 | 49 |
Sound pressure level with 8 dB system attenuation | dB(A) | 25 | 32 | 36 | 41 |
Active power Pel | W | 29 | 47 | 80 | 137 |
SCHOOLAIR-B-HE (example 2-pipe construction – isothermal supply air)
Supply air flow rate | m³/h | 150 | 225 | 300 | 400 |
Total heating capacity | W | 250 | 400 | 520 | 630 |
Room heating capacity | W | 135 | 165 | 170 | 94 |
Heat recovery efficiency | % | 90 | 87 | 85 | 83 |
Air temperature following heat recovery | °C | 18.7 | 18.0 | 17.6 | 17.1 |
Supply air temperature | °C | 23.7 | 23.2 | 22.7 | 21.7 |
Quantity of condensate | l/h | 0.5 | 0.7 | 0.9 | 1.1 |
Hot water flow rate | l/h | 30 | 60 | 110 | 125 |
Water temperature, inlet | °C | 40 | 40 | 40 | 40 |
Water temperature, outlet | °C | 33 | 34 | 36 | 36 |
Water side pressure drop | kPa | 1.5 | 4.5 | 12 | 15 |
Sound power level LWA | dB(A) | 33 | 40 | 44 | 49 |
Sound pressure level with 8 dB system attenuation | dB(A) | 25 | 32 | 36 | 41 |
Active power Pel | W | 29 | 47 | 80 | 137 |
SCHOOLAIR-B-HE (example of 4-pipe construction)
Supply air flow rate | m³/h | 150 | 225 | 300 | 400 |
Total cooling capacity | W | 430 | 660 | 890 | 1090 |
Room cooling capacity | W | 401 | 601 | 802 | 962 |
Heat recovery efficiency | % | 90 | 87 | 85 | 83 |
Air temperature following heat recovery | °C | 26.6 | 26.8 | 26.9 | 27.0 |
Relative humidity | % | 55 | 54 | 54 | 53 |
Water content of the dry air | kg | 11.9 | 11.9 | 11.9 | 11.9 |
Supply air temperature | °C | 18 | 18 | 18 | 18.8 |
Condensation | l/h | 0 | 0 | 0 | 0 |
Chilled water flow rate | l/h | 75 | 105 | 155 | 160 |
Water temperature, inlet | °C | 16 | 16 | 16 | 16 |
Water temperature, outlet | °C | 21.0 | 21.4 | 20.9 | 21.9 |
Water side pressure drop | kPa | 4 | 7.5 | 14.5 | 15 |
Total heating capacity | W | 950 | 1480 | 2050 | 2690 |
Room heating capacity | W | 827 | 1232 | 1673 | 2191 |
Heat recovery efficiency | % | 90 | 87 | 85 | 83 |
Air temperature following heat recovery | °C | 18.7 | 18.0 | 17.6 | 17.1 |
Supply air temperature | °C | 37.5 | 37.4 | 37.7 | 37.4 |
Condensation | l/h | 0.5 | 0.7 | 0.9 | 1.1 |
Hot water flow rate | l/h | 30 | 50 | 80 | 120 |
Water temperature, inlet | °C | 60 | 60 | 60 | 60 |
Water temperature, outlet | °C | 32 | 34 | 38 | 41 |
Water side pressure drop | kPa | 1.5 | 3 | 6.5 | 13.5 |
Sound power level LWA | dB(A) | 33 | 40 | 44 | 49 |
Sound pressure level with 8 dB system attenuation | dB(A) | 25 | 32 | 36 | 41 |
Active power Pel | W | 29 | 47 | 80 | 137 |
SCHOOLAIR-B-HE-2/KM/2090×750×420/C3
Under sill units for assembly horizontally on the façade
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 standard control parameters for operation according to our control system description.
School ventilation unit – under sill installation – MASTER UNIT
Under sill ventilation unit TROX SCHOOLAIR-B-HE with supply and extract air function and switchover to secondary air mode (depending on air quality), cross-counterflow heat recovery that can be used all year round as well as heating function, for installation on an external wall below the window sill:
Units – dimensions and weight:
Width: approx. 2090 mm (without levelling feet and fixing brackets)
Height: ca. 750 mm (levelling feet to top edge of unit, without space for extract air intake)
Depth: approx. 420 mm (without façade sealing)
Weight: approx. 115 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 ...):
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-…/KV-R-…):
Optional control accessories
Optional equipment to increase the comfort of the FSL-CONTROL III:
TROX control panels for FSL-CONTROL III
Control panels with selector switch for surface mounting:
Control panel with selector switch, for surface mounting, type Honeywell
Control panel with selector switch, for surface mounting, type Thermokon
Control panels without selector switch for surface mounting:
Control panel without selector switch, for surface mounting, type Schneider
Control panel without selector switch, for surface mounting, type Thermokon
Room temperature sensor for surface mounting:
Room temperature sensor TROX RTF, surface mounting
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
Control panel without selector switch, for flush mounting, type Thermokon, switch from Berker Q.3 range, white
Control panel without selector switch, for flush mounting, type Thermokon, switch from Busch Jäger future linear range, white
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
Further switch programmes on request
Electromotive valve actuator:
As an alternative to the standard installed thermoelectric actuator
Pressure independent control valve:
As an alternative to the standard installed straight-way small valve
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.
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.
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.
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.
Commissioning of the decentralised ventilation units
Commissioning / parameter setting of decentralised ventilation units without connection to the central building management system
Commissioning / parameter setting of decentralised ventilation units with connection to the central building management system
Instruction in operation and maintenance
SCHOOLAIR-B | – | HV | – | 2 | / | KR | / | 2100 × 740 × 403 | / | C3 | / | MA | – | T | / | MR | / | C | / | Z | / | A | / | HV | – | R | – | 0.4 | / | KV | – | R | – | 0.4 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |||||||||||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |||||||||||||||||
Order example: SCHOOLAIR-B-HE-2/KM/2090x750x420/C3-MA-T/C/Z/A/HV-R-0.40
B | Under sill unit |
HE | High Efficiency |
2 | With 2-pipe heat exchanger |
KM | With condensate drain and water connection on the right |
C3 | With FSL-CONTROL III |
MA | Master construction |
T | With real time clock |
C | With CO2 sensor |
Z | With supply air temperature sensor |
A | with fresh air temperature sensor |
HV-R-0.40 | with straight-way valve (heating circuit) kvs 0.40 and lockshield |
Installation and commissioning
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Contact
We are here for you
Please specify your message and type of request
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265
Contact
Thank you for your message!
Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265