X-CUBE ROOMAIR-U-ZAS 

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 %

Mindestmenge Außenluft = 60 m³/h
Kondensatfreier Betrieb durch SEC-Beimischung in Stufe 1 = 21 m³/h
Kondensatfreier Betrieb durch SEC-Beimischung in Stufe 2 = 31 m³/h
Kondensatfreier Betrieb durch SEC-Beimischung in Stufe 3 = 42 m³/h

•  Alle Angaben unter Berücksichtigung der WRG!

X-CUBE/ROOMAIR-U-ZAS: 2-Leiter-Ausführung

Luftseitige Daten Heizbetrieb:

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

 
Alle Angaben unter Berücksichtigung der WRG!

X-CUBE/ROOMAIR-U-ZAS-4-AR/1150x196x830/C3

Underfloor ventilation unit for installation in system floor (cavity or raised floor)

Special features:

• Particularly low installation height in the area of the system floor (cavity or raised floor) 150 mm
• Heat recovery - thus lower dimensioning of the heating system necessary
• Condensate-free operation all year round: no drainage of condensate necessary, no waste water pipe on the façade and no condensate pump
• Complete maintenance and replacement of all components possible via the ventilation grille: no inspection openings required
• Controller box of the individual room control accessible via the ventilation grille: no additional inspection opening required
• Water connection points on the casing
• Minimum outdoor air volume and secondary air admixture possible to increase the output in all ventilation stages: thus saving of energy
• Height of the ventilation grille can be customised on request

Unit description:

Please note:

The described underfloor ventilation unit variant is equipped with individual room control. The supplied controllers contain the parameters of the standard control for operation according to our control description.

X-CUBE/ROOMAIR-U-ZAS - Master device

Decentralised underfloor ventilation unit TROX X-CUBE/ROOMAIR-U-ZAS with supply and extract air function, secondary air admixture, switchover option to secondary air mode, heat recovery as well as heating and cooling function for installation in system floor (cavity or raised floor):

• Device casing made of galvanised sheet steel, self-supporting, visible surfaces powder-coated (RAL 9005, jet black)
• Casing height in the grille area at least 175 mm (without mounting frame of the ventilation grille) and minimum height of 150 mm in the area of the system floor (cavity or raised floor)
• Sound and heat-insulating lining on the suction and discharge side made of mineral wool faced with glass fibre scrim (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
• Meets the hygiene requirements of VDI 6022
• Connection to the on-site outdoor air and exhaust air openings in the façade by means of a circumferential, closed-cell sealing tape on the rear of the unit (10 mm thick). The intake and discharge resistance of the on-site construction should not exceed 20 Pa at nominal volume flow rate
• Unit exhaust air opening 120 × 100 mm
• Unit outdoor air opening: 180 × 60 mm
• Distance of the openings from the bottom edge of the unit approx. 20 mm
• Height-adjustable levelling feet (+40 mm) to compensate for structural tolerances
• With mounting frame for the ventilation grille (width approx. 340 mm) directly on the façade (can be offered separately)
• Maintenance of all components after removal of the ventilation grille. No inspection opening required in the floor area
• Condensate-free operation all year round thanks to motorised secondary air admixture
• Heat recovery all year round
• Motorised summer bypass that enables free cooling directly with outdoor air
• Meets all requirements of EU directive 1253/2014 (ErP)
• Demand-controlled operation for outdoor and secondary air by recording and analysing the room air quality using a mixed gas sensor
• Use of 2 energy-saving EC centrifugal fans, suitable for up to 5 speed levels; supply and extract air fan in category SFP 0 (< 300 W/m³/s) according to DIN EN 16798-3:2017-11. Signalling via integrated control (when ordering the following items); electrical power consumption of the entire unit at nominal volume flow 120 m³/h = 34 W. A connected load of 326 VA must be taken into account when dimensioning the connection cable.
• The unit can switch up to 5 levels in outdoor air operation (60 - 120 m³/h supply/extract air operation). Total supply air volume flow of up to 250 m³/h possible via secondary air admixture depending on the selected speed level. Control via individual room control. Volume flow level correction possible subsequently by adjusting the control voltage.

• Utilisation of secondary air to save energy (only in conjunction with air quality sensor): Automatic switchover to secondary air operation takes place when the room air quality (measured, for example, by the unit's internal CO₂ sensor) is within the defined limits. For this purpose, the shut-off dampers are closed, the self-powered secondary air damper opens and the extract air fan is switched off

• Maximum constructive separation of the supply air discharge from the extract air and secondary air intake situation to reduce air short circuits
• Separate exhaust air and secondary air intake and air duct routing
• Sound power level in supply and extract air mode at 60/90/120/150 m³/h = 28/35/43/48 dB(A) (corresponds to a sound pressure level of 20/27/35/40 dB(A) with a room attenuation of 8 dB). The measurement data refer to sound power measurements of a single unit in a reverberation chamber according to accuracy class 1. Results may vary, depending on the installation situation

• Sound power level in supply air, extract air and secondary air mode - example:

  
  
  

  • Outdoor air volume flow = exhaust air volume flow = 120 m³/h

  • Supply air volume flow 120/150 m³/h = 41/45 dB(A) (corresponds to a sound pressure level of = 33/37 dB(A) with a room attenuation of 8 dB)

  • The measurement data refer to sound power measurements of a single unit in a reverberation chamber according to accuracy class 1. Results may vary, depending on the installation situation

• 4-pipe aluminium-copper tube heat exchanger for air heating and cooling, matched 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), drainage and venting option per heating/cooling circuit, arranged 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; including pre-assembled valves and lockshields
• Maximum optimised heat exchanger area of 350 × 175 mm outlet area
• The transfer points are the fixed connections on the appliance wall, designed as G ½" external threads with a flat seal. We recommend additional shut-off devices in the on-site supply lines
• Easy-to-clean condensate tray made of galvanised sheet steel (powder-coated, RAL 9005) as an emergency tray if the temperature falls below the dew point in summer. We recommend an outdoor temperature and humidity-controlled adjustment of the cooling circuit flow temperature
• Integrated recuperative cross-flow heat recuperator in seawater-resistant aluminium design, with high efficiency
• Electrical components contained in the unit are fully wired with FSL-CONTROL III. Control components must be installed in separately mounted control casings (2 pieces). Cable for connection (connection not in the TROX supply package) 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 on-site measurement/control/regulation system:

  • Rail mount terminals type Wago 260 for the on-site connection of

    
    
    

    • Digital inputs DI

    • Digital outputs DO

    • Master-slave connection RS485

    • RS485 (Modbus/BACnet)

    • Room control panel

    • RJ45 socket as service access to the user interface

    • Optional connection to MCE/BACS via Ethernet (Modbus/BACnet)

• 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
  • Mixed air temperature detection upstream of the heat recovery unit
  • Outdoor air temperature measurement in the outdoor air intake
• With electromotive bypass for night cooling or as summer bypass, 24 V actuator, open - close
• Motorised shut-off dampers in outside air and exhaust air areas, normally closed in inactive state via energy storage (capacitor), 230 V actuator, open/closed, activation via integrated single room control unit
• Outdoor air filter as Mini Pleat filter, class ePM1 (fine dust filter):
  • Filter class to ISO16890: ISO ePM1 65%
  • Eurovent-certified
  • ePM1 filter media made of high-quality, wet-strength glass fibre paper, and laid in tight pleats. The spacers are made of thermoplastic hot-melt adhesive and ensure that the pleats are evenly spaced (4 mm) from each other
  • The frame is made of moisture-resistant non-woven fibre with pull-out brackets and must not reduce the flow cross-section (filter size = flow cross-section)
  • Filter area ≥ 1.1 m²
• Extract air filter, class G3 (coarse dust filter), flat filter medium, filter class according to ISO 16890: ISO coarse 60%
• Filters can be changed without tools, as the filter inserts are located directly below the ventilation grille
• The supply air volume flow creates a velocity profile that ensures airflow velocities of less than 0.15 m/s outside the close range

Installed components:

• Cross-flow heat recovery
• 2- or 4-pipe heat exchanger for heating and cooling
• EC-centrifugal fans
• Electric motorised actuator for outdoor air and exhaust air dampers
• Electric motorised actuator for the bypass damper of the heat recovery system
• Electric motorised actuator for secondary air admixture
• Temperature sensors for recording the outside air, mixed air, supply air and room air temperature (in the control panel)
• CO₂ sensor for recording indoor air quality
• ISO ePM1/ISO Coarse filter media
• Valves and electromotive valve actuators Heating/cooling

Dimensions and weight:

• Width (4-pipe heat exchanger version) approx. 1150 mm (in the grille area), 1000 mm (in the raised floor area); without levelling feet
• Height: approx. 150 mm (in the floor area; without height adjustment)
• Height: approx. 175 mm (in the area of the ventilation grille; without height adjustment and without mounting frame of the ventilation grille)
• Depth: approx. 830 mm (of which approx. 340 mm in the area of the ventilation grille and approx. 490 mm in the raised floor area; without overhang of cable gland and façade seal)
• Weight: approx. 75 kg

Construction

Technical data

• Width: 1100 mm
• Height: 150 mm below the raised floor, total height including ventilation grille at least 196 mm
• Depth: 860 mm
• Depth of ventilation grille: 340 mm
• Fresh air flow rate: 0 – 33 l/s or 0 – 120 m³ /h
• Supply air flow rate: 42 l/s or 150 m³ /h max.
• Cooling capacity: 730 W max.
• Heating capacity: 1980 W max.
• Flow temperature – heating: 60 °C max.
• Max. operating pressure, water side: 6 bar
• Sound power level: 43 dB(A) at 33 l/s or 120 m³ /h
• Supply voltage: 230 V AC ±10 %, 50/60 Hz