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

Under sill units for vertical installation on the façade Please note:

The vertical decentralised ventilation unit variant described is equipped with an integrated single room control system located in the unit for self-sufficient room operation. The supplied controllers contain the parameters of the standard control for operation according to our control description X-CUBE/ROOMAIR-V-ZAB/SEK with automatic secondary air changeover function - master appliance TROX X-CUBE/ROOMAIR-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:

• Unit casing made of galvanised sheet steel, cover and sheet metal connections with deep-drawn threads and stainless steel cross-head screws, all internal air 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 Height adjustable levelling feet, + +40 mm, to compensate for structural tolerances
• Connection to the on-site outdoor air and exhaust air openings of the façade by means of a circumferential closedpore 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 flow rate. 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)
• 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 flow rate 120 m³/h < 27 W, a connected load of 240 VA must be taken into account for rating 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 and extract air mode at 60/90/120/150 m³/h = 30/33/39/44 dB(A) (corresponds to a sound power level of = 22/25/31/36 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
• Integrated recuperative, cross flow heat exchanger for heat recovery in salt water resistant aluminium design, with high efficiency due to special plate structure, plate spacing and package length, including condensate drip tray and discharge into the heat exchanger condensate drip tray. Accessibility for maintenance purposes via separate service cover possible without removing the unit cover
• With electromotive bypass, which bypasses the heat recovery system, 24 V drive (continuous), 100 % open-close, control via unit-internal single room control system
• Motorised shut-off dampers in outdoor 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 integrated CO2sensor, for example) 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
• Integral electrical components are completely wired with FSLCONTROL III, control components are integrated in the unit. Connecting cable for (cable 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) 
• Connection option for bus communication (optional), connection of room control panel etc. after opening the customer area of the control unit. 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
• Optional integration in MCE/BACS via RS485 (Modbus/ BACnet)
• Room control panel
• RJ45 socket as service access to the user interface
• Optional integration into an on-site 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 room control panel):

• Room 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 tube heat exchanger for air heating or air cooling, matched to project-specific data, easily removable for cleaning (depends on the connection to the main pipe by others, not included in the TROX supply package), drainage and venting option per heating/cooling circuit, arrangement on the room side on the right. We recommend using flexible hoses to connect the unit to the pipework (not included in the TROX scope of delivery) so that the heat exchanger can be easily removed for cleaning. Transfer points are the hand tight 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 drip tray with condensate drain (Ø 12 x 1 [mm] made of galvanised sheet steel powder-coated, RAL 9005) Outdoor air filter as Mini Pleat filter, class ePM1 (fine dust filter):

• Filter class according to ISO 16890: 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 crosssection (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 75% 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 cell sealing tapes for sealing and adaptation to the outer casing are not included in the TROX supply package 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 extract 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 unit must be completely accessible after removal of the outer casing

Units - dimensions and weight: 
Width: approx. 400 mm
Height: approx. 1800 mm (without fixing bracket, without height adjustment)
Depth: approx. 320 mm (without compressible façade seal on the back of the unit) 
Weight: approx. 60 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 pressureindependent 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 standalone operation. - please refer to: . We recommend commissioning by TROX. You will find related text modules below.

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

• Single room controller to be mounted on a DIN mounting rail in the unit or in a separate control equipment box
• 42 digital or analogue inputs and outputs
• A MicroSD card (at least 2 GB storage space) is integrated as a flash memory medium. The trend data are stored there and can be retrieved via the RJ45 socket
• Factory-equipped 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 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)

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

Outdoor air temperature sensor (order code .../A/...): 

• 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-…/KV-R-…):

Valve actuators:

• 2 × thermoelectric actuators for opening and closing valves, with position indicator, including pluggable connection power, operating voltage 24 V DC, control voltage 0 - 10 V DC, power consumption 1 W, protection class: IP 54

Straight-way valves:

• 2 × straight through small valves ½" standard, hand-tight preassembled, PN 16, DN 10, kvs 0.4 (alternatively 0.25, 0.63 or 1.0 m³/h - please state the required kvs-Value), valve body straight through with external thread on both sides ½" flat sealing, medium temperature 1 - 110 °C

Lockshields:

• 2 × return fittings on both sides ½", hand-tight pre-assembled, nominal width DN 15; valve body straight through with external thread on both sides ½" flat sealing, for regulation and shut-off, media temperature max. 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 room control panels must be connected via bus communication.
  

Digital room control panels for surface mounting:
For operation and adjustment of the ventilation units

• Supplied loosely as an accessory. Connection to master unit via Modbus Serial line. Project-specific software including setpoint value adjuster, various status displays, selector switch, CO2 indicator. Touch-sensitive colour display 3.5" 320 × 240 pixels. Sensor: NTC 10 kΩ. Protection level: IP 20. Type: Schneider TM172DCLWT. Dimensions (H × B × T): 120 × 86 × 25 mm, weight: 340 g, colour: white. Installation: Surface mounting or on a standard flush-mounted box. Power supply: 24 V DC (including suitable switching power supply unit for flush-mounted installation). Power consumption: 3.2 VA/1.3 W. Other design frames are available upon request and for a surcharge.

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

• Supplied loosely as an accessory, with room temperature sensor, setpoint adjuster, override button, LED and 3-step selector switch as well as off and automatic, casing made of PVC0 pure white (RAL 9010), mounting on 60 mm flushmounted box or directly on the wall, NTC thermistor as sensor element, resistance 20 kΩ at 25 °C, dimensions (B × H × T): 84.5 × 84.5 × 25 mm, operating temperature: -35 to 70 °C

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

• Supplied loosely 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 loosely as a separate part, room sensor without operating elements, measuring range: -35 to 70 °C, NTC 10 kΩ sensor, screw terminal connection terminal, cable crosssection 1.5 mm2 , protection level IP 20, mounting on wall or on 70 mm flush-mounted box, dimensions (B × H × T) 85 × 85 × 30 mm, ABS casing in RAL 9010

Control panels without selector switch for flush mounting: Manual operation of the ventilation units, high-quality appearance, matching design frames from various switch ranges. The units are particularly suitable for design-oriented interiors.
Control panel without selector switch, type Thermokon, for flush mounting, switch programme Berker S.1, polar white

• Supplied loosely as an accessory, with mode display, push button and setpoint adjuster, NTC sensor 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 loosely as an accessory, with mode display, push button and setpoint adjuster, NTC sensor 20 kΩ, 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 loosely as an accessory, with mode display and push button, NTC sensor 20 kΩ, protection level: IP 20
• Other switch programmes on request
  

Electromotive valve actuators as an alternative to the thermoelectric actuators installed as standard: 

• 2 x electromotive actuators 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, permitted operating fluid temperature 1 to 110 °C

• 2 x pressure-independent control valves, hand-tight preassembled with modulating open/close control in combination with an externally adjustable dynamic volume flow controller, with full valve authority, nominal width DN 10, straightthrough valve body with external thread on both sides ½" flat sealing, media temperature 0 to 120 °C

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 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 unit. The MCE/BACS is not included in the supply package from Trox SE, only the interfaces listed above are available here.

Modbus TCP interface (Ethernet)

To increase convenience, we recommend integration into an onsite 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 SE, only the interfaces listed above are available here.

BACnet IP interface (Ethernet)

Modbus RTU (order code .../MR/...):

To increase convenience, we recommend integration into an onsite 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.

Modbus RTU interface (RS485)

BACnet MS/TP interface (RS485)

Replacement filter set suitable for the appliance version

• Extract air filters cut to size as filter mats
• Outdoor air filter as Mini Pleat filter

Commissioning of the decentralised ventilation units

• Visual inspection of the device connections on site for compliance with the respective installation specifications from the installation and configuration instructions: air connections, heating/cooling connection, electrical connections, integration  into the installed outer casing, connections of external components
• 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 (control elements, 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 and service work in a service report. The service report must be signed by your company or representative as the client.
• Invoicing is done as a flat rate, derived from the number of units and distance.

• Visual inspection of the device connections on site for compliance with the respective installation specifications from the installation and configuration instructions: air connections, heating/cooling connection, electrical connections, integration into the installed outer casing, connections of external components, connections of MCE/BACS
• 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 (control elements, 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 MCE/BACS in cooperation with the controls provider:
• 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 representative as the client.
• Invoicing is done as a flat rate, derived from the number of units and distance.

• One-time 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 the maintenance work
• Invoicing is done on a flat-rate basis. The instruction is carried out by the responsible sales representative