X-CUBE SCHOOLAIR-V-4L

SCHOOLAIR-V (example of 4-pipe construction – active heating)

Supply air flow rate	m³/h	150	200	250	320
Total cooling capacity	W	680	900	1130	1440
Room cooling capacity	W	401	534	668	844
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	18	18	18.1
Condensation	g/h	0	0	0	0
Chilled water flow rate	l/h	80	130	190	250
Water temperature, inlet	°C	16	16	16	16
Water temperature, outlet	°C	23.3	22.0	21.1	21.0
Water side pressure drop	kPa	3	5	8	12
Total heating capacity	W	2680	3630	4700	5760
Room heating capacity	W	772	1075	1486	1678
Air temperature inside the unit	°C	-12	-12	-12	-12
Supply air temperature	°C	35.4	36.1	37.8	35.7
Hot water flow rate	l/h	70	100	160	200
Water temperature, inlet	°C	60	60	60	60
Water temperature, outlet	°C	26.5	28.2	34.3	34.8
Water side pressure drop	kPa	2.5	3	5	7
Sound power level LWA	dB(A)	31	36	41	46
Sound pressure level with 8 dB system attenuation	dB(A)	23	28	33	38
Active power Pel	W	24	34	44	70

 

 

SCHOOLAIR-V (example of 4-pipe construction – isothermal supply air)

Supply air flow rate	m³/h	150	200	250	320
Total cooling capacity	W	790	1050	1300	1570
Room cooling capacity	W	411	534	668	759
Air temperature inside the unit	°C	34	34	34	34
Relative humidity	%	36	36	36	36
Water content of the dry air	kg	11.9	11.9	11.9	11.9
Supply air temperature	°C	17.8	18	18	18.9
Condensation	g/h	0	0	0	0
Chilled water flow rate	l/h	100	160	160	200
Water temperature, inlet	°C	16	16	16	16
Water temperature, outlet	°C	22.8	21.6	21.6	22.8
Water side pressure drop	kPa	3.5	7	11	11
Total heating capacity	W	2020	2730	3430	4150
Room heating capacity	W	130	214	276	150
Air temperature inside the unit	°C	-12	-12	-12	-12
Supply air temperature	°C	23.6	24.2	24.3	22.4
Hot water flow rate	l/h	60	90	130	160
Water temperature, inlet	°C	50	50	50	50
Water temperature, outlet	°C	20.9	23.7	27.1	27.5
Water side pressure drop	kPa	2	3.5	6	8.5
Sound power level LWA	dB(A)	31	36	41	46
Sound pressure level with 8 dB system attenuation	dB(A)	23	28	33	38
Active power Pel	W	24	34	44	70

 

 

 

 

SCHOOLAIR-V-4/KO/397×2350×359/C3

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

CO₂ sensor (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, k_VS 0.4 (alternatively: 0.25, 0.63 or 1.0 m³/h – please specify the required k_VS 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-V

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1 Type
SCHOOLAIR-V vertical under sill ventilation unit
 
2 Variant
No entry required: Standard
HE High heat recovery efficiency
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 drain (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 drain, 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-, 4-pipe 1800 version)
600 × 2000 × 408 (2-, 4-pipe HE version)
605 × 2200 × 413 (2-, 4-pipe HV version)
 
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 CO₂ sensor
V With VOC sensor
 
11 Supply air temperature sensor
Z With
 
12 Fresh 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 k_VSvalue – 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
Only 4-pipe systems
KV With
 
17 Lockshield – cooling circuit
R With
 
18 k_VSvalue – 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