X-CUBE SCHOOLAIR-D-HV-2220

Specification text

X-CUBE/SCHOOLAIR-D-HV-0-2-1-BB-W/2228 × 401 × 854

Decentralised ventilation unit for mounting on the ceiling

Please note:

The ceiling ventilation unit described is equipped with a singleroom control located in the unit. The supplied controllers contain the parameters for standard operation according to our control description.

Ventilation unit for schools – ceiling installation – master unit Ventilation unit for ceiling installation TROX X-CUBE/ SCHOOLAIR-D-HV-0-2 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:

• Equipped for installation in a suspended ceiling, in one level, flush with the bottom edge of the device
• One-piece device casing made of galvanised sheet steel
• Cover and sheet metal connections: Connection via deepdrawn threads and stainless steel cross-head screws
• All necessary internal air ducts sealed and insulated by lining
• Internal electrical cable glands sealed
• Visible surfaces powder-coated (RAL 9010 GU 30 %, alternatively RAL 7012 GU 30 %)
• Sound and heat-insulating lining on the suction and discharge side:
• Glass fibre-laminated mineral wool (building material class A, non-combustible according to DIN 4102, T1), abrasion-resistant up to air velocities of 20 m/s, or closed-cell insulation material
• Sound attenuators on the upstream and downstream sides provide maximum reduction of sound power levels
• Meets the hygiene requirements of VDI 6022
• External fixing brackets for easy installation underneath the raw ceiling
• Connection to the on-site outdoor air and exhaust air openings in the façade:
• With circumferential closed-cell sealing tape on the back of the device, 50 mm wide and 10 mm thick (alternatively with duct connection)
• The intake and discharge resistance of the on-site construction should not exceed 20 Pa at nominal volume flow
• The weather protection must be provided on the façade side and serves to protect the unit (weather protection not included in TROX scope of delivery)
• Integrated air diffusers on the underside of the device
• Extraction via perforation pattern integrated in the cover
• Room supply air discharge on the underside of the device via innovative supply air diffuser with guaranteed room air circulation
• Regardless of whether mounted above the panel (front side) or on the façade side
• For easy maintenance
• Device cover fitted with hinges
• Securing the device cover using maintenance locks with special locks
• Note: The underside of the device must be completely accessible for maintenance work and possible disassembly
• 2 energy-saving EC centrifugal fans:
• Supply and extract air fan classified in category SFP 0 (< 300 W/(m³/s)) in accordance with DIN EN 16798-3:2017-11
• Electrical power consumption of the entire device at nominal flow rate 400 m³/h < 88 W
• For dimensioning the connecting cable: Take into account a connected load of 640 VA
• Suitable for 4 speed levels:
• 200, 300, nominal air volume 400 m³/h and boost stage with 600 m³/h
• Control via device-internal single-room control
• Volume flow stage correction possible subsequently by adjusting the control voltage
• Technical requirements of EU Regulation 1253/2014 for non-residential ventilation systems:
• Fulfilled and documented in accordance with regulations
• Integrated rotary heat recovery unit:
• High efficiency (heat recovery coefficient > 75 %)
• Including humidity recovery (humidity recovery efficiency > 50 %)
• Year-round utilisation of the heat recovery ventilation, even at very low temperatures:
• Reduces the available heating capacity on the water side
• Control via device-internal single-room control
• Motorised shut-off dampers in outdoor and exhaust air areas:
• Normally closed in inactive state due to capacitor
• Open-close actuator 230 V AC
• Control via device-internal single-room control
• Automatic switchover to energy-efficient secondary air operation:
• Only in conjunction with air quality sensor
• Comparison of the setpoint values, e.g. with the actual values of the internal CO2-sensor
• If the indoor air quality is sufficient: switchover from outdoor air to secondary air operation
• Transfer point to the on-site electrical system:
• Cable for on-site connection (not included in scope of supply)
• Cable (L, N, PE) with wire end ferrules approx. 1 m out of the device
• On-site electrical system: 1~ 230 V AC, 50 Hz, 3 × 1.5 mm2 (3 cores)
• Electrical components in the device:
• Completely wired with FSL-CONTROL III control system
• Control components integrated in the device
• Connection option for bus communication (optional)
• Connection of room control panel etc. after opening the customer area of the control system
• Transfer point to the on-site MCR technology: Rail mount terminals type Wago 260
• Optional integration into MCE/BACS via RS485 (Modbus/BACnet)
• Master-slave connection RS485
• Digital outputs DO
• Digital inputs DI
• Room control panel for recording the room temperature
• Transfer point to the on-site MCR technology: Network connection RJ45
• Optional integration into an on-site MCE/BACS via Ethernet (Modbus/BACnet)
• RJ45 connection socket as service access to the user interface
• Sensor for controlling the single-room control in the device:
• Room 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:
• Adjusted to the project-specific data
• Easily removable for cleaning (the on-site connection to the main pipework is crucial, not included in the TROX scope of delivery)
• Draining and venting option per heating/cooling circuit (located on the right-hand side of the room)
• Cleaning the heat exchanger:
• For easy removal: We recommend a connection to the on-site pipe network with flexible hoses (not included in the TROX scope of delivery)
• Transfer points are the hand-tight pre-assembled control components
• In the return: valve with G ½" external thread, flat sealing
• In the flow: lockshield with ½" external thread, flat sealing
• Outdoor air filter as Mini Pleat filter, class ePM1 (fine dust filter):
• Filter class as per ISO 16890: ISO ePM1 65%
• Eurovent-certified
• Made from high-quality, wet-strength glass fibre paper in tight pleats
• Spacer:
• Made from thermoplastic hot-melt adhesive
• Even distance between the pleats (4 mm)
• Frame made of moisture-resistant nonwoven fabric with pull-out tabs
• Frame must not reduce the flow cross-section (filter size = flow cross-section)
• Extract air filter with large filter surface due to pleated filter media
• Filter class as per ISO 16890: ISO Coarse 90%
• Low differential pressures at high volume flows
• Filter media made of synthetic fibres
• Moisture-resistant frame made of non-woven fabric
• Quick change of both filters after opening one part of the cover
• Differential pressure measurement for filter monitoring, evaluation via integrated single room control system
  
  

Devices - dimensions and weight:

• Width: approx. 2228 mm (without fixing brackets)
• Height: approx. 401 mm
• Depth: approx. 854 mm (without façade sealings)
• Weight: approx. 225 kg
  

FSL-CONTROL III controller

• Self-sufficient single-room control with simple time programme
  
  

Optional expansions for FSL-CONTROL III:

• Humidity sensor Return temperature sensor
• Electric valve actuators
• Pressure-independent control valves
• Integration into an on-site MCE/BACS via:
• Modbus TCP
• Modbus RTU
• BACnet MS/TP
• BACnet IP
  
  

Note:

The optional expansions are included in the delivery programme, but must be exchanged for the standard components in the following description.

• A room temperature signal is required
• Various room control panels and a room temperature sensor are available
• Associated optional equipment options - see Optional control accessories.
• We recommend commissioning by TROX.

TROX control module FSL-CONTROL III (order code ...-C3- MA ...):

• Single room controller to be mounted on a DIN mounting rail in the device or in a separate control casing
• 42 digital or analogue inputs and outputs
• Integrated microSD card as flash memory medium
• At least 2 GB storage space
• Saves the trend data
• Retrievable via RJ45 connection socket
• Factory-equipped with a software package for master units specially developed for decentralised ventilation units.
• For simple master-slave communication via Modbus RTU
• Up to 10 slave devices can be connected to one master device
• Software:
• 3 operating modes: Off, Automatic, Manual mode
• 3 operating modes: Occupied, Unoccupied, Standby
• 4 operating mode overrides: Boost, closed circuit, night purge, fan forced circuit
• Basic distinction between room temperature control by controlling heating and cooling valves or continuous bypass damper, or supply air temperature control for isothermal ventilation operation
• CO2-guided air quality control
• Heat recovery all year round
• Filter monitoring
• Configurable DI for on-site connection of presence detectors, window contacts, holiday switching, etc.
• Alarm messages: Type A (shutdowns) and Type B (notifications)

Real time clock (RTC)

Real Time Clock (RTC/real time clock) (order code ...-T/...):

• Component of the Master Software Package
• Enables a simple timer
• 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, 10 kΩ at 25 °C, measuring range -35 to 105 °C
• Very short response time due to perforated measuring tip

Outdoor air temperature sensor

• Outdoor air temperature sensor with NTC thermistor, 10 kΩ at 25 °C, measuring range -35 to 105 °C

Water side components

Water-side components (Order code…/HV-R-…):

• 1 × thermoelectric valve actuator:
• For opening and closing valves
• With position indicator
• Including plug-in connecting cable
• Supply voltage: 24 V DC
• Control voltage 0 - 10 V DC
• Power consumption 1 W
• Protection level: IP 54
• 1 × small straight-way valve ½" standard:
• Pre-assembled (hand-tight)
• 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)
• Valve body with through-type design, external thread on both sides ½" flat sealing
• Operating fluid temperature 1 – 110 °C
• 1 × Lockshield on both sides ½":
• Pre-assembled (hand-tight)
• Nominal width DN 15
• Valve body with through-type design, external thread on both sides ½" flat sealing
• For regulation and shut-off
• Maximum operating fluid temperature 120 °C

Optional control accessories

Optional equipment to increase the comfort of the FSLCONTROL III:

TROX 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 control panels must be connected via bus communication.

Digital room control panels for surface mounting

For operation and adjustment of the ventilation units. Digital room control panels for surface mounting: For operating and adjustment the ventilation units, type Schneider TM172DCLWT:

• Supplied as a loose accessory
• Connection to the master unit via Modbus serial line
• Project-specific software including setpoint value adjuster, various status displays, selector switch, CO2traffic light
• Touch-sensitive colour display 3.5", 320 × 240 pixels
• Sensor: NTC 10 kΩ
• Protection level: IP 20
• Dimensions (height × width × depth): 120 × 86 × 25 mm
• Weight: 340 g
• Colour: white
• Installation: Surface mounting or on a standard flushmounted box.
• Power supply: 24 V DC (optionally with suitable switching power supply unit for flush-mounted installation)
• Power consumption: 3.2 VA/1.3 W
• Other design frames available on request at an extra charge

Control panels with selector switch for surface mounting

Control panel with selector switch, type Thermokon, for surface mounting:

• Supplied as a loose accessory
• With room temperature sensor, setpoint adjuster, override button, LED and 3-stage selector switch, as well as Off and automatic mode
• Casing made of PVC0 pure white (RAL 9010)
• Mounting on 60 mm flush-mounted box or directly on the wall
• NTC thermistor as a sensor element, resistance 20 kΩ at 25 °C
• Dimensions (width × height × depth): 84.5 × 84.5 × 25 mm,
• Operating temperature: -35 – 70 °C

Control panels without selector switch for surface mounting

Control panel without selector switch, type Thermokon, for surface mounting:

• Supplied as a loose accessory
• With mode display, push-button and setpoint adjustment, NTC 20 kΩ sensor
• Protection level: IP 20
• Dimensions (width × height × depth): 84.5 × 84.5 × 25 mm

Room temperature sensor for surface mounting

Room temperature sensor TROX RTF, for surface mounting:

• Supplied as a loose accessory
• Room sensor without control elements
• Measuring range: -35 – 70 °C
• Sensor NTC 10 kΩ
• Connection terminal: screw terminal, Ø = 1.5 mm²
• Protection level IP 20
• Installation: Surface mounting or on a 70 mm flushmounted box
• Dimensions (width × height × depth): 85 × 85 × 30 mm
• Casing ABS in RAL 9010

Control panels without selector switch for flush mounting

• For the manual control of ventilation units
• Particularly suitable for design-orientated interiors
• High-quality appearance
• Various switch ranges with matching design frames
  
  

Control panel without selector switch, type Thermokon, for flush mounting, switch programme Berker S.1, polar white:

• Supplied as a loose accessory
• With mode display, push-button and setpoint adjustment, NTC 20 kΩ sensor
• Protection level: IP 20
  
  

Control panel without selector switch, type Thermokon, for flush mounting, switch programme Berker Q.3, white:

• Supplied as a loose accessory
• With mode display, push-button and setpoint adjustment, NTC 20 kΩ sensor
• Protection level: IP 20
  
  

Control panel without selector switch, type Thermokon, for flush mounting, switch programme Busch-Jäger future linear, white

• Supplied as a loose accessory
• With mode display, push-button and setpoint adjustment, NTC 20 kΩ sensor
• Protection level: IP 20
  
  

Other 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, type Thermokon, for flush mounting, switch programme Gira E2:

• Supplied as a loose accessory
• With mode display and push-button, NTC 20 kΩ sensor
• Protection level: IP 20
  
  

Other switch programmes on request.

Electromotive valve actuator

As an alternative to the thermoelectric actuator (standard):

• 1 × electromotive actuator for valve opening and closure
• Supply voltage 24 V AC/DC
• Power consumption max. 2.5 VA
• Control signal 3-point DC 0 - 10 V
• Permissible operating fluid temperature 1 – 110 °C

Pressure-independent control valve

As an alternative to the small straight-way valve (standard):

• 1 × pressure-independent control valve
• Pre-assembled (hand-tight)
• With modulating Open/Close control in combination with an externally adjustable, dynamic volume flow controller
• With full valve authority
• Nominal width DN 10
• Valve body with through-type design, external thread on both sides ½" flat sealing
• Fluid temperature 0 – 120 °C

Interface for integration into an on-site MCE/BACS:

Modbus TCP interface including web server (order code .../ MT/...)

For more convenience, we recommend integration into an onsite MCE/BACS or visualisation with X-TAIRMINAL. FSLCONTROL 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 device. The MCE/BACS 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/...): 

For more convenience, we recommend integration into an onsite MCE/BACS. FSL-CONTROL III can be integrated into an onsite MCE/BACS via the BACnet IP protocol. Additionally including web server for simplified configuration, commissioning and remote monitoring of the device. The MCE/BACS 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/...)

For more convenience, we recommend integration into an onsite MCE/BACS. FSL-CONTROL III can be integrated into an onsite MCE/BACS via Modbus RTU. The MCE/BACS is not included in the supply package from TROX, only the interfaces listed above are available here.

• Modbus RTU interface (RS 485)

BACnet MS/TP (order code .../BM/...)

For more convenience, we recommend integration into an onsite MCE/BACS. FSL-CONTROL III can be integrated into an onsite MCE/BACS via BACnet MS/TP. The MCE/BACS is not included in the supply package from TROX, only the interfaces listed above are available here.

• BACnet MS/TP interface (RS485)

Version as a slave device

Identical to the master device, as described above, but with the following deviations:

• No room air quality measurement in the unit
• No connection option for room control panels
• No outdoor temperature detection in the outdoor air
• No connection to on-site bus communication possible
• Pre-assembled self-sufficient control system for decentralised façade ventilation units in slave version

Commissioning of the decentralised ventilation units

Commissioning/parameterisation of the decentralised ventilation units without connection to the MCE/BACS

• Visual inspection of the on-site device connections, for compliance with the respective installation specifications from the installation and configuration instructions: air connections, heating/cooling connection, electrical connections, integration into the installed unit casing, connections of external components 
• Check and, if necessary, adapt the project parameters preset in the factory with regard to customer-specific adaptations 
• Functional test of the individual components (control elements, fans, valves, dampers, sensors)
• Checking the project-specific control functions, including any special functions such as potential-free switch contacts
• Documentation of the device settings and service work in a service report. The service report must be signed by your company or a representative as the client
• Invoicing is based on a flat rate, derived from the number of devices and distance
  
  

Commissioning/parameterisation of the decentralised ventilation units with connection to the MCE/BACS

• Visual inspection of the on-site device connections, for compliance with the respective installation specifications from the installation and configuration instructions: air connections, heating/cooling connection, electrical connections, integration into the installed unit casing, connections of external components, connections of the MCE/BACS
• Check and, if necessary, adapt the project parameters preset in the factory with regard to customer-specific adaptations
• Functional test of the individual components (control elements, fans, valves, dampers, sensors)
• Checking the project-specific control functions, including any special functions such as potential-free switch contacts
• Functional test of the communication to the MCE/BACS in cooperation with the appointed MCR technology company:
• Checking that the on-site settings comply with the specifications in the installation and configuration instructions
• Input test of the data points sent on site
• Output test of the output data points
• Trial operation of the operating states that can be switched by the MCE/BACS
• Documentation of the device settings and service work in a service report. The service report must be signed by your company or a representative as the client
• Invoicing is based on a flat rate, derived from the number of devices and distance
  
  

Instruction in operation and maintenance

• One-time instruction for the operation of the decentralised ventilation units consisting of:
• Description of the device functions on the device, already in operation
• Description of the room control panel and the room conditions that can be influenced by it
• Description of the maintenance work
• Invoicing on a flat-rate basis, carried out by the responsible sales representative

Replacement filter set suitable for the appliance version

• Extract air filter as Z-Line filter
• Outdoor air filter as Mini Pleat filter

1 Type

SA-D Ventilation unit for ceiling installation X-CUBE/ SCHOOLAIR-D

2 Variant

HV high volume flow and rotary heat recovery unit

3 Installation situation

0 Installation integrated in suspended ceiling

F freely suspended installation

T partially integrated in suspended ceiling

Z Installation in a pre-installed frame1

I Installation situation to be decided2

4 Heat exchanger

2 2-pipe

4 4-pipe

5 Heat exchanger construction

Specify construction (technical design with TROX EPF or TROX CONFIGURATOR)

6 Construction

BB Outdoor air connection to the rear, exhaust air connection to the rear

LB Outdoor air connection to the left, exhaust air connection to the rear (not with installation situation F or connection W)

BR Outdoor air connection to the rear, exhaust air connection to the right (not with installation situation F or connection W)

LR Outdoor air connection to the left, exhaust air connection to the right (not with installation situation F or connection W)

7 Connection

0 without connection (only with installation situation I)

W Wall connection sealing kit for outdoor air and exhaust air (not with installation situation I)

B Flanged collar for outdoor air and exhaust air (not with installation situation I)

Q Duct connection for outdoor air and exhaust air (not with installation situation I)

8 Nominal size [mm]

Width × height × depth

2228 × 401 × 854 (only with installation situation 0)

2420 × 401 × 854 (only with installation situation F)

2770 × 401 × 854 (only with installation situation T)

2765 × 433 × 923 (only with installation situation Z)

2220 × 401 × 854 (only with installation situation I)

9 Exposed surface

0 powder-coated, RAL 9010 (pure white), GU 30

P1 powder-coated, RAL 7012 (basalt grey), GU 30, or specify alternative RAL CLASSIC colour, GU 30

10 Control system

OR without control system

C3 with FSL-CONTROL III

11 Control function

MA Master

SL Slave

12 Real-time clock

Only with control function MA

No entry: without real time clock

T with real time clock

13 Interface

No entry: without interface

MT with Modbus TCP

MR with Modbus RTU (only with control function MA)

BI with BACnet IP

BM with BACnet MS/TP (only with control function MA)

14 Air quality sensor

Only with control function MA

No entry: without air quality sensor

C with CO2sensor

V with VOC sensor

15 Supply air temperature sensor

Z with supply air temperature sensor

16 Outdoor air temperature sensor

Only with control function MA

No entry: without outdoor air temperature sensor

A with outdoor air temperature sensor

17 Heating valve

HV with thermoelectric actuator

HVE with electromotive actuator

18 Lockshield – heating circuit

R with lockshield

19 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)

20 Cooling valve

Only with heat exchanger 4

KV with thermoelectric actuator

KVE with electromotive actuator

21 Lockshield cooling circuit

Only with heat exchanger 4

R with lockshield

22 Kvs value cooling valve

Only with heat exchanger 4

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)

1 Accessory frame to be ordered separately

2 Basic unit is supplied without accessories. Required accessories to be ordered separately.

Order example: SA-D-HV-T-4-1-LB-B/2770×401×854/0/C3-MA-T/MR/C/Z/A/HV-R-0.40/KV-R-0.40