Rotary heat exchanger for heat recovery
Functional description
Decentralised supply and extract air units ventilate the room and cover the heating load according to the technical data. 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 rotary heat recovery unit, which can be switched off in energy efficient operating situations. Before the supply air enters the room as displacement flow, it is heated by the electric heating coil if required. The extract air first passes through 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, the FSLCONTROL III control system switches to energy-efficient secondary air mode by closing the outdoor air dampers. The control system compares the room air quality setpoint value to the actual value measured by the CO2 sensor and switches automatically between outdoor air and secondary air operation. In case of a power failure, the outdoor air and exhaust air dampers are closed to ensure fire protection, frost protection and to avoid draughts. This is ensured by a capacitor in each actuator. Near the external wall, the supply air is discharged into the room with a medium velocity between 0.5 and 0.8 m/s. Due to the induction effect, the supply air velocity is rapidly reduced after entering the room. As a result, in cooling mode, the supply air spreads out like displacement flow over the entire floor area. Near heat sources such as people or equipment, a lift current is formed by natural convection, so that the air is exchanged primarily in these areas.
Width | 605 mm |
Height | 2200 mm |
Depth | 413 mm |
Volume flow rate | 200, 300, 400 m³/h (boost 600 m³/h) |
Nominal volume flow rate | 400 m³/h |
Sound power level | 31 – 49 dB(A) |
Degree of heat recovery efficiency | 75 % |
Maximum heating capacity (electrical) | 1500 W |
Supply voltage | 230 V AC ±10 %, 50/60 Hz |
Power rating | 2247 VA |
Weight | 145 kg |
Supply air volume flow | m³/h | 200 | 300 | 400 | 600 |
Sound power level LWA | dB(A) | 31 | 37 | 42 | 49 |
Sound pressure level including 8 dB system attenuation | dB(A) | 23 | 29 | 34 | 41 |
Active power Pel | W | 30 | 50 | 76 | 205 |
SCHOOLAIR-V-HV-EH/KO/605x2200x413/C3
Under sill units for vertical installation on the façade
Please note:
The under sill ventilation unit variant described has an integrated single room control system for autonomous classroom operation.
The supplied controllers contain the parameters for standard operation according to our control description.
Ventilation unit for schools – vertical installation - master unit
TROX X-CUBE/SCHOOLAIR-V-HV under sill ventilation unit with supply and extract air function, rotary heat recovery unit and switchover option to secondary air mode (depending on air quality) as well as electrical reheating function, for vertical installation on the façade:
Units - dimensions and weight:
Width: approx. 605 mm (without fixing brackets)
Height: approx. 2200 mm (without levelling feet, without fixing brackets)
Depth: approx. 413 mm (incl. façade sealing)
Weight: approx. 145 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/...):
Optional control accessories
Optional equipment to increase the comfort of the FSL-CONTROL III:
TROX room control panels for FSL-CONTROL III
At least one room temperature signal is required per room. There are several variants of TROX room control panels available, optionally with or without selector switch. Additionally, we offer a room temperature sensor RTF without control elements. Alternative on-site room control panels must be connected via bus communication.
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, for surface mounting, type Thermokon
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:
For manual operation of the ventilation units with a high-quality look and the matching design from a wide range of switch programmes, the unit is suitable for particularly design-oriented facilities.
Control panel without selector switch, type Thermokon, for flush mounting, switch from Berker S.1 range, polar white
Control panel without selector switch, type Thermokon, for flush mounting, switch programme Berker Q.3, white
Control panel without selector switch, type Thermokon, for flush mounting, switch programme Busch-Jäger future® linear, white
Control panels without selector switch and without setpoint value adjuster, for flush mounting:
Control panel without selector switch and without setpoint value adjuster, type Thermokon, for flush mounting, switch from Gira E2 range
Interface for integration into an on-site MCE/BACS:
Modbus TCP interface including web server (order code .../MT/...)
To increase convenience, we recommend integration into an on-site MCE/BACS or visualisation with X-TAIRMINAL. FSL-CONTROL III can be integrated into an on-site MCE/BACS via the Modbus TCP protocol. Additionally including web server for simplified configuration, commissioning and remote monitoring of the unit. The MCE/BACS is not included in the supply package from TROX GmbH, only the interfaces listed above are available here.
BACnet IP interface including web server (order code .../BI/...)
To increase convenience, we recommend integration into an on-site MCE/BACS. FSL-CONTROL III offers the option of being integrated into an on-site MCE/BACS via the BACnet IP protocol. Additionally including web server for simplified configuration, commissioning and remote monitoring of the unit. The MCE/BACS is not included in the supply package from TROX GmbH, only the interfaces listed above are available here:
Modbus RTU (order code .../MR/...)
To increase convenience, we recommend integration into an on-site MCE/BACS. FSL-CONTROL III offers the option of being integrated into an on-site MCE/BACS via Modbus RTU. The MCE/BACS is not included in the supply package from TROX GmbH, only the interfaces listed above are available here.
BACnet MS/TP (order code .../BM/...)
To increase convenience, we recommend integration into an on-site MCE/BACS. FSL-CONTROL III offers the option of being integrated into an on-site MCE/BACS via BACnet MS/TP. The MCE/BACS is not included in the supply package from TROX GmbH, only the interfaces listed above are available here.
Version as SLAVE DEVICE
Identical to the MASTER DEVICE, as described above, but with the following deviations:
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-V | – | HV | – | EH | – | 15 | – | KO | / | 605 × 2200 × 413 | / | C3 | – | MA | – | T | / | MR | / | C | / | Z | / | A |
| | | | | | | | | | | | | | | | | | | | | | | | | | ||||||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
Order example: SA-V-HV-EH-15-KO/605×2200×413/C3-MA-T/MR/C/Z/A
Type | SA-V | Ventilation unit for ceiling installation X-CUBE/SCHOOLAIR-V |
Variant | HV | High volume flow rate and rotary heat recovery unit |
Heat exchanger | EH | with electric air heater |
Heat exchanger construction | 15 | 1500 W |
Construction | KO | without condensate drain |
Nominal size [mm] | 605×2200×413 | Width 605, height 2200, depth 413 |
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 |
Installation and commissioning
Free area of ventilation openings: 0.05 m² for each outdoor air opening and exhaust air opening, and 0.16 m² for each supply air opening and extract air opening
Weather protection for the outdoor air and exhaust air openings to be provided by others
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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