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SCHOOLAIR-V-1800

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Tested to VDI 6022

Conforms to VDI 6022

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Energy label

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Plate heat exchanger

Cross flow heat recovery unit

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Heat exchanger

Water connection

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Levelling foot

Levelling foot

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X-CUBE ROOMAIR-V-ZAB/SEK   

SUPPLY AND EXTRACT AIR UNIT WITH HEAT EXCHANGER AND HEAT RECOVERY UNIT, SECONDARY AIR OPTION, FOR VERTICAL INSTALLATION ON AN EXTERNAL WALL, E.G. ADJACENT TO A WINDOW

Ready-to-operate decentralised ventilation unit for comfortable room temperature control and ventilation of rooms

  • Acoustically optimised EC fans with low specific fan power, acc. to DIN EN 16798-3 SFP = 0
  • Cross flow heat recovery unit (heat recovery efficiency 61 %)
  • Highly efficient heat exchanger for heating and cooling as 2-pipe or 4-pipe system
  • Heat exchanger connection is on the right side of the room
  • Condensate drip tray with condensate drain
  • Heat recovery all year round (condensate drainage required on site)
  • Unit floor space approx. 0.13 m²
  • Reduction of fine dust and pollen contamination due to integral filters that conform to VDI 6022 3 filter class ISO ePM1 65% / ISO coarse 50%
  • Service-friendly maintenance cover for filter changing and cleaning the heat recovery system
  • Motorised shut-off dampers, normally closed (NC)
  • Automatic switching to secondary air mode (based on air quality) 

Optional equipment and accessories
  • Control system FSL-CONTROL III, specially designed and modularly constructed for decentralised ventilation systems
  • Wood panelling covers in various colours, with TROX ventilation grilles for supply and extract air (self-assembly kit)

Application

Application

  • Ventilation of rooms, preferably rooms with a depth up to 6 m
  • 2-pipe or 4-pipe heat exchangers enable good comfort levels
  • Inducing displacement flow
  • Energy-efficient solution since water is used for heating and cooling
  • For new buildings, refurbishment projects and revitalisation projects
  • Vertical installation on the façade or on an external wall
  • Typical installation locations include offices and meeting rooms

Special characteristics

  • Motorised shut-off dampers for fresh, normally closed (NC) in order to prevent uncontrolled airflows
  • Recuperative heat recovery unit, including bypass damper with electric variable actuator
  • Heat exchanger as 2-pipe or 4-pipe system, with G½" union nuts and flat seals
  • Meets the hygiene requirements of VDI 6022
  • Filter class: F7 for fresh air, G3 for extract air
  • Easy filter change with quick release fasteners, no tools required
  • Condensate drip tray with or without condensate drain
  • Compact construction, hence particularly suitable for refurbishment projects
  • Demand-based ventilation and extract ventilation is possible by means of monitoring the room air quality and with dedicated control equipment
  • 4 levelling feet
  • Automatic switching to secondary air mode (only with an air quality sensor) if the room air quality (measured with the integral VOC sensor, for example) is between the previously defined range. The fresh air damper closes, the self-powered secondary air damper opens and the extract air fan is switched off. The unit always starts in secondary air mode, which is more energy efficient.

Nominal sizes

  • 396 × 1800 × 319 mm (B × H × T)

Technical information

Function, Technical data, Quick sizing, Specification text, Order code

  • FUNCTION
  • TECHNICAL DATA
  • QUICK SIZING
  • SPECIFICATION TEXT
  • ORDER CODE

Functional description

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 F7 filter.

Once the fresh air has passed the fan, it flows through the recuperative heat exchanger for heat recovery; it is possible to bypass the heat exchanger in order to pect it, or when it is sensible with regard to energy efficiency.

If necessary, the air is heated or cooled by the heat exchanger before it is discharged to the room as a displacement flow.

The extract air first passes a G3 filter (that pects the unit), then flows through the heat exchanger (for heat recovery), the extract air fan and the motorised shut-off damper before it is discharged to the outside as exhaust air.

Automatic switching to secondary air mode (only with an air quality sensor) if the room air quality is sufficient.

The fresh air damper closes, the self-powered secondary air damper opens and the extract air fan is switched off.

The unit always starts in secondary air mode, which is more energy efficient.

Width400 mm
Height1800 mm
Depth320 mm
Volume flow rate75, 90, 120 m³/h (boost 150 m³/h)
Nominal volume flow rate120 m³/h
Sound pressure level at nominal flow rate and 8 dB room attenuation32 dB(A)
Sound power level30 – 44 dB(A)
Heat recovery efficiency61%
Maximum operating pressure, water side6 bar
Maximum operating temperature75 °C
Supply voltage230 V AC ±10 %, 50/60 Hz
Power rating240 VA
Weight60 kg
,


Sizing example 1

Supply air flow ratem³/h7590120150
Total cooling capacityW350420550690
Room cooling capacityW205243325401
Air temperature inside the unit°C32323232
Relative humidity%40404040
Water content of the dry airg/kg

11.9

11.9

11.9

11.9

Supply air temperature°C

17.8

17.9

17.9

18
Condensationg/h

Chilled water flow ratel/h5070110150
Water temperature, inlet°C16161616
Water temperature, outlet°C22

21.1

20.3

19.9

Water side pressure dropkPa

2.1

3.7

8.2

14.1

Total heating capacityW1480174022802770
Room heating capacityW383433545611
Air temperature inside the unit°C-16-16-16-16
Supply air temperature°C

35.3

34.4

33.6

32.2

Hot water flow ratel/h405080110
Water temperature, inlet°C60606060
Water temperature, outlet°C

27.9

29.8

35.2

38
Water side pressure dropkPa

2.6

3.8

8.5

14.7

Sound power level LWAdB(A)30333944
Sound pressure level including 8 dB system attenuationdB(A)22253136

Active power Pel

W20232735

Luftseitige Daten Kühlbetrieb:


  • Temperatur/relative Feuchte Außenluft: 32 °C/40 %
  • Temperatur/relative Feuchte Raumluft: 26 °C/50 %
     

Luftseitige Daten Heizbetrieb:


  • Temperatur/relative Feuchte Außenluft: -16 °C/90 %
  • Temperatur/relative Feuchte Raumluft: 20 °C/35 %

 


 Alle Angaben ohne Berücksichtigung der WRG!


 



Sizing example 2 with year-round heat recovery utilisation

Supply air volume flowm³/h7590120150
Total cooling capacityW320390520660
Room cooling capacityW200240321401
Air temperature inside the unit°C28

28.1

28.3

28.4

relative humidity

%

50.2

50

49.5

49.3

Water content of dry air

g/kg

11.9

11.9

11.9

11.9

Supply air temperature°C18181818
Condensateg/h104133162207
Chilled water flow ratel/h405588112
Water inlet temperature°C12121212
Water outlet temperature°C

18.8

18

17.1

17.1

Water side pressure dropkPa

1.4

2.4

5.5

8.4

Total heating capacityW62078010301290
Room heating capacityW318388493541
Air temperature inside the unit°C

9.8

9.2

8.8

7.4

Supply air temperature°C

33.7

33.9

33.3

31.8

Condensateg/h200200200300
Hot water flow ratel/h355080100
Water inlet temperature°C45454545
Water outlet temperature°C

29.5

31.5

33.8

33.8

Water side pressure dropkPa2

3.6

8.2

12.2

Sound power level Lw,adB(A)30333944

Sound pressure level including 8 dB room attenuation

dB(A)22253136

Active power Pel

W20232735

Luftseitige Daten Kühlbetrieb:


  • Temperatur/relative Feuchte Außenluft: 32 °C/40 %
  • Temperatur/relative Feuchte Raumluft: 26 °C/50 %
     

Luftseitige Daten Heizbetrieb:


  • Temperatur/relative Feuchte Außenluft: -12 °C/90 %
  • Temperatur/relative Feuchte Raumluft: 21 °C/40 %

 


Alle Angaben mit Berücksichtigung der WRG!

X-CUBE ROOMAIR-V-ZAB/SEK-4-KM/400×1800×320/C3

Under sill units for vertical installation on an external wall

Please note:

The vertical decentralised ventilation unit variant described is equipped with an individual room control located in the unit for self-sufficient room operation. The parameters for standard control of a classroom according to our control system description are stored in the controller

FSL-V-ZAB/SEK with automatic secondary air changeover function - master unit

TROX FSL-V-ZAB/SEK vertical decentralised ventilation unit with supply and extract air function and switchover option to secondary air operation (depending on air quality), heat recovery as well as heating and cooling function for mounting on on-site facade construction:

  • Casing made of galvanised sheet steel, cover and sheet metal connections with deep-drawn threads and stainless steel cross-head screws, internal ducts sealed and lined as required, internal cable penetrations sealed, exposed surface powder-coated (RAL 9005, jet black)
  • For on-site fastening, adjustable L-bracket on the top of the unit with 2 slotted holes and slotted holes behind the heat exchanger in the lower part of the unit
  • Opening on the room side in the upper area for the extract air and secondary air intake, without sealing tape, sealing to the sill panelling by means of closed-pored sealing tape to prevent air short-circuits (sealing tape not included in TROX scope of delivery) is required
  • Sound- and heat-insulating lining on suction and discharge side made of mineral wool faced with glass fibre scrim (material classification A, non-combustible according to DIN 4102, T1), erosion resistant up to air velocities of 20 m/s, or closed cell insulation material
  • The unit meets the hygiene requirements of VDI 6022
  • Levelling feet, +40 mm
  • Connection to the on-site fresh air and exhaust air openings of the façade by means of a circumferential closed-pore sealing tape on the rear side of the unit, w × d = 50 × 10 mm, 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 the TROX scope of delivery)
  • Use of 2 energy-saving EC centrifugal blowers, supply and extract air fan classified in category SFP 0 (< 500 W/(m³/s) according to DIN EN 16798-3: electrical power consumption of the entire unit at nominal volume flow 120 m³/h < 27 W, a connected load of 240 VA must be taken into account for dimensioning the connecting cable
  • Suitable for 4 speed levels (e.g. 60, 90, 120 and 150 m³/h), control via unit-internal individual room control, volume flow rate level correction by adjusting the control voltage subsequently possible
  • Meets the requirements of EU Regulation 1253/2014 (ErP Directive)
  • Sound power level in supply/exhaust air mode at 60/90/120/150 m³/h = 30/33/39/44 dB(A) (corresponds to a sound pressure level of = 22/25/31/36 dB(A) with a room attenuation of 8 dB). The measurement values refer to sound power measurements of a single unit in a reverberation chamber according to accuracy class 1. Results may vary depending for some installation situation
  • Integrated recuperative, cross-flow heat exchanger for heat recovery in seawater-resistant aluminium design, with high efficiency due to special plate structure, plate spacing and package length, including condensate tray and discharge into the heat exchanger condensate tray. Accessibility for maintenance purposes via separate service cover possible without removing the unit cover
  • With electromotive bypass, which bypasses the heat recovery unit, 24 V drive (continuous), 100 % open-close, control via unit-internal individual room control system
  • Motorised shut-off dampers in fresh air and exhaust air areas, normally closed in inactive state via energy storage, 230 V drive, open-close, control via unit-internal individual room control system
  • Automatic switching to secondary air mode (only with an air quality sensor) if the room air quality (measured with the integral CO2sensor, for example) is within the defined limits. The outdoor air damper closes, the self-powered secondary air damper opens and the extract air fan is switched off.
  • Integral electrical components are completely wired with FSL-CONTROL III, control components are integrated. Cable for on-site connection (connection not included in TROX scope of delivery) of the power supply (L, N, PE) with wire end ferrules led approx. 1 m out of the unit, as a transfer point to the on-site electrical installation:
    • Supply voltage (230 V): 3 wires, 3 × 1.5 mm² (L, N, PE)
  • Integration with bus system as an option, connection of control panels etc. in the customer area of the control system. As a transfer point to the controls provided by others:
    • Rail mount terminals type Wago 260 for the connection (by others) of
      • Digital inputs DI
      • Digital outputs DO
      • Master-slave connection RS485
      • Central BMS connection (optional) RS485
      • Room control panel
  • RJ45 socket as service access to the user interface or for BMS connection (optional) Ethernet
  • The following sensors are included in the unit as part of the single room control system (the actual room temperature is captured at the control panel):
    • Indoor air quality sensor CO2
    • Supply air temperature measurement downstream of the heat exchanger
    • Outdoor air temperature measurement in the outdoor air intake
  • 4-pipe aluminium-copper heat exchanger for air heating or air cooling, matched to the project-specific data, easily removable for cleaning (decisive is the on-site connection to the main piping, not included in TROX's scope of supply), drainage and venting option per heating/cooling circuit, arrangement on the right-hand side of the room. We recommend a connection to the on-site pipe network with flexible hoses (not included in the TROX scope of delivery), so that the heat exchanger can be easily removed for cleaning
  • Transfer points are the manually pre-assembled control components
    • Valves in the return: transfer with G ½" external thread, flat seal
    • Lockshields in the flow: transfer with G ½" external thread, flat seal
  • Easy-to-clean condensate pan made of galvanised sheet steel, powder-coated RAL 9005, with condensate drain Ø 12 × 1 [mm]
  • Outdoor air filter as Mini Pleat filter, class ePM1 (fine dust filter):
    • Filter class to ISO 16890: ISO ePM1 65%
    • Eurovent-certified
    • ePM1 filter media made from high-quality, wet-strengthened glass fibre paper are pleated, the spacers are made from thermoplastic hot melt adhesive and ensure uniform spacing (4 mm) between the pleats
    • The frame is made of moisture-resistant fleece with pull-out tabs and must not reduce the flow cross-section (filter size = flow cross-section)
    • Filter area ≥ 1.8 m²
  • Extract air filter class G3 (coarse dust filter) as flat filter medium, filter class according to ISO 16890: ISO coarse 50%
  • Easy inspection of the filters and the heat recovery unit due to the compact arrangement of the components behind the service cover. The service lid can be opened without tools via user-friendly quarter-turn fasteners. Accessibility must not be restricted by the on-site parapet cladding
  • Closed-pored sealing tapes for sealing and adaptation to the on-site cladding are not included in the TROX scope of delivery
  • The sill cladding provided by the customer shall have perforations in areas of the heat exchanger to be specified for the introduction of supply air into the room and shall not restrict maintenance work or unit assembly/disassembly on the front side of the unit. An opening for exhaust air intake must also be arranged in the upper area of the cladding
  • Clear distance of approx. 30 mm between the front edge of the unit and the inner edge of the under sill trim
  • The front of the device must be completely accessible after disassembly of the outer casing

Units - dimensions and weight:

Width: approx. 400 mm

Height: approx. 1800 mm (without top mounting bracket, without height adjustment)

Depth: approx. 320 mm (without compressible façade seal on the back of the unit)

Weight: approx. 60 kg




Construction

  • Powder-coated RAL 9005, black



Technical data

  • Width: 396 mm
  • Height: 1800 mm
  • Depth: 319 mm
  • Fresh air flow rate: 150 m³ /h
  • Supply air flow rate: up to 150 m³ /h
  • Cooling capacity: up to 720 W
  • Heating capacity: up to 2650 W
  • Room cooling capacity: up to 400 W
  • Room heating capacity: up to 750 W
  • Max. operating pressure: 6 bar
  • Max. operating temperature: 75 °C
  • Sound power level: 27 – 44 dB(A)
  • Supply voltage: 230 V AC ±10 %, 50/60 Hz
  • Rating: 87 VA
  • Power consumption: nominal volume flow rate 27 W


RA-V-ZAB/SEKHE4KR / 604 × 2200 × 260 / C3 / MAT / MR / C / Z / A / HVR0.4 / KVR0.25
||||||||||||||||||
123456789101112131415161718
1 Type
RA-V-ZAB/SEK
vertical decentralised ventilation unit X-CUBE/ROOMAIR-V-ZAB/SEK

2 Variant
No entry: Standard
HE high degree of heat recovery

3 Heat exchanger
2
2-pipe
4 4-pipe

4 Construction
KM
with condensate drain (only with standard variant)
KR with condensate drain, extract air on room side right (only with variant HE)
KL with condensate drain, extract air on room side left (only with variant HE)

5 Dimensions [mm]
Width × height × depth
400 × 1800 × 320 (only with standard variant)
604 × 2200 × 260 (only with variant HE)

6 Control system
OR
without control system
C3 with FSL-CONTROL III

7 Control function
MA
Master
SL Slave

8 Real time clock
Only with control function MA
No entry: without real time clock
T with real time clock

9 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)

10 Air quality sensor
Only with control function MA
No entry: without air quality sensor
C with CO2-sensor
V with VOC sensor

11 Supply air temperature sensor
Z with supply air temperature sensor

12 Outdoor air temperature sensor
Only with control function MA
No entry: without outdoor air temperature sensor
A with outdoor air temperature sensor

13 Heating valve
HV
with heating valve

14 Lockshield – heating circuit
R
with lockshield

15 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)

16 Cooling valve
With heat exchanger '4' only
KV with cooling valve

17 Lockshield – cooling circuit
R
with lockshield

18 kVS value – 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)
Order example: FSL-V-ZAB/SEK-HE-4-KR/604×2200×260/C3/MA-T/MR/C/Z/A/HV-R-F0.40/KV-R-F0.25
TypeFSL-V-ZAB/ZEK
VariantHigh heat recovery efficiency
Heat exchanger4-pipe
Construction variantwith condensate drain on the right
Dimensions [mm]Width 604, height 2200, depth 260
Control systemwith FSL-CONTROL III
Control functionMaster
Real time clockwith real time clock
Interfacewith Modbus RTU
Air quality sensorwith CO2sensor
Supply air temperature sensorwith supply air temperature sensor
Outdoor air temperature sensorwith outdoor air temperature sensor
Heating valvewith heating valve
Lockshield – heating circuitwith lockshield
kVS value – heating valve0.40 (straight-way valve)
Cooling valvewith cooling valve
Lockshield – cooling circuitwith lockshield
kVS value – cooling valve0.25 (straight-way valve)

Dimensions, Produktdetails

  • Dimensions
  • PRODUKTDETAILS

Installation and commissioning

  • Vertical installation on the façade or on an external wall
  • Level adjustment using the 4 levelling feet (+40 mm)
  • The fresh air connection is provided by two ventilation openings in the façade system or external wall (to be provided by others), preferably sloping towards the outside
  • Weather pection for the fresh air and exhaust air openings to be provided by others
  • Installation and connections to be performed by others; fixing, connection and sealing material to be provided by others
  • The water flow and return connections are on the right-hand side of the unit when seen from the room
  • Vents and drainage by others
  • The electrical connection is on the right when seen from the room
  • The under sill trim must not obstruct installation or deinstallation of the unit or maintenance access on the front of the unit

Downloads

informazioni di prodotto

certificati

Referenze

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