D550 DucoBox Energy Comfort Installation Guide

Box Energy Comfort (Plus)
Installation Guide

D550 DucoBox Energy Comfort

Translation of the original instructions
See www.duco.eu for information regarding warranty, maintenance, technical data, etc.
Installation, connection, maintenance and repairs are to be carried out by an accredited installer. The electronic components of this product may be live. Avoid contact with water.Vero DUCO – Handelsstraat 19 – 8630 Veurne – Belgium
tel +32 58 33 00 33 – info@duco.eu – www.duco.eu

Introduction

The DucoBox Energy Comfort (Plus) is a mechanical ventilation unit with heat recovery. It supplies fresh air mechanically to and extracts contaminated air mechanically from the house by means of built in fans. During this process, the heat is recovered from the extracted air and transferred to the air supplied.
The DucoBox Energy Comfort (Plus) is a functional product and requires to be fitted by a professional installer.
A mechanical ventilation unit with heat recovery consists of:

• The unit
• Ducting systems to take in outdoor air
• Ducting systems to exhaust stale air to the outside
• Duct system for supplying fresh preheated air indoors
• Ducting systems to extract stale indoor air to the unit
• Supply vents/grilles to supply the preheated air into dry rooms¹.
• Exhaust vents/grilles to extract the stale air from wet rooms².

1. Dry rooms: living rooms, bedrooms, etc.
2. Wet rooms: kitchen, bathroom, toilet, etc.

Scope of supply
Before starting to install the heat recovery unit, check to ensure it is complete and undamaged.3
The scope of supply of the DucoBox Energy Comfort (Plus) type heat recovery unit comprises the following components:

• DucoBox Energy Comfort (Plus)
• Fixing bracket
• Installation guide
• User manual
• 2 x DucoBox Energy Comfort (Plus) Filter
  ISO 16890 Coarse 65 % (≈ G4)

01.A Versions
Unit

Optional accessories

01.B Operation
Bypass
The bypass ensures, should it be necessary, that there is no heat transfer between air extracted and supplied. This means that the house cools down in a controlled and gradual manner. This function is active mainly in the summer. The bypass opens if the indoor temperature rises above the set comfort temperature (set to 21.5 °C by default) and the outdoor temperature is above 10 °C.
As the comfort temperature in the sleep zone and the day zone can be different, it is possible to define different comfort temperatures in zone- controlled systems, e.g.: 21.5° for the day zone and 18° for the night zone.
The unit contains 2 bypasses. Either only the right-hand bypass or only the left-hand bypass will serve, depending on the selection of L or R in the initial installation screen. The software will always close the non-selected bypass.
Frost protection
To protect and keep the unit operating properly at very low outdoor temperatures, it is equipped with frost protection as standard.
The supply flow rate is slowed down gradually so that more warm air passes over the heat exchanger.
This prevents the heat exchanger from freezing up. If the imbalance is insufficient to prevent it from freezing up, then the unit will be temporarily switched off.
Optionally, you can also choose to apply an external Pre-Heater. This ensures that imbalance control or temporary shutdown is delayed as long as possible.
Constant Flow
The unit features constant-flow control. This ensures that the air flow rate between the supply and extract side remains constant when the filters become dirty.
01.C Dimensions
Comfort D225 – D325 Comfort D400 Comfort Plus D350 – Plus D450 – Plus D550

Regulations and safety instructions

The installer is responsible for installing and commissioning the unit.
Do not install this product in areas where the following are present or could occur:

• Excessively greasy atmosphere.
• Corrosive or flammable gases, liquids or fumes.
• Room air temperature above 40 °C or below -5 °C.
• Relative humidity higher than 90% or outdoors.
• Obstacles that prevent access to or the removal of the fan unit.
• Bends in the ducts immediately upstream of the fan unit.
• The DucoBox Energy Comfort (Plus) must not be connected to a (motorless) extractor hood or tumble dryer.

Take care to ensure that the electrical supply is a 230 V, single-phase earthed, 50/60 Hz, AC system. The device must be connected to an earthed and fused wall socket.
Secure the unit, preferably in an enclosed space, using the correct screws and mounting bracket, to a wall or using a mounting chair on a floor with sufficient load-bearing capacity.
The fan unit can only be used with the appropriate DUCO accessories and user control(s). The installer must ensure that the fan unit is positioned at least 3 m away from a chimney pipe. The unit must not be used in locations where it could be subjected to direct water spraying. Certain situations may require the use of acoustic insulation materials.
Check that the unit is complete and undamaged when you take it out of the packaging. If in doubt about this, contact DUCO / your DUCO distribution point.
Electrical equipment should be handled with care.

• Never touch the unit with wet hands.
• Never touch the device when barefoot.

Do not use the unit in the presence of flammable or volatile substances such as alcohol, insecticides, petrol etc.
Make sure that the electrical system to which the unit is connected, complies with the stipulated conditions. Do not expose the device to weather conditions. Do not place any objects on the unit.
Do not use the unit as an extractor for water heaters, heating systems, etc.
Ensure that the unit discharges into a single exhaust duct that is suitable and installed for the purpose and exhausts to the outside.
Ensure that the electrical circuit is not damaged.
Replace both filters in the unit every 6 months at most; this ensures that the unit is always protected against contamination and that the air being drawn in is always healthy.
Always adhere to the safety instructions in the manual when installing the device. Failure to adhere to these safety instructions, warnings, notes and instructions could result in damage to the DucoBox Energy Comfort (Plus) or in personal injury for which DUCO NV cannot be held liable.
The DucoBox Energy Comfort (Plus) requires to be installed in accordance with the general and locally applicable construction, safety and installation regulations of municipal and other authorities.
Only an accredited installer is permitted to install, connect and commission the DucoBox Energy Comfort (Plus), as described in this manual.
Keep the manual close to your unit. Maintenance instructions must be followed closely in order to avoid damage and/or wear.
It is recommended that a maintenance contract be taken out to ensure the unit is regularly inspected and cleaned. The device must be fitted in a touch-safe manner. This means, among other things, that under normal operating conditions no-one can reach moving or electrically live parts of the fan without intending to do so for operations such as:

• Taking off the cover.
• Taking the motor module out of the fan after removing the cover.
• Disconnecting a duct or control valve from the connection opening during normal operation.

It ought to be impossible to touch the fan by hand. Ducting must therefore always be connected to the DucoBox Energy Comfort (Plus) before it is put into operation. Therefore, at least 900 mm of ducting must be connected to the unit.
The DucoBox Energy Comfort (Plus) satisfies the legal requirements imposed on electrical equipment.
Always ensure that before work begins, the device is isolated from the power supply by removing the power cord from the wall socket or by switching off the fuse. (Use a measuring instrument to check that this is actually the case!)
Use suitable / appropriate tools to work on the unit.
Use the unit only for applications for which it has been designed, as stated in this manual.
The ventilation unit should operate permanently, i.e. the DucoBox Energy Comfort (Plus) must never be switched off (legal obligation).
The electronic components of the ventilation unit may be live. In the event of a fault, contact a professional installer and have repairs carried out only by qualified personnel.
This unit is not intended for use by people (including children) with reduced physical, sensory or mental capabilities, or who lack experience of know-how, unless they are supervised or have been given instructions on the use of the unit by a person who is responsible for their safety. Children must be supervised to ensure that they do not play with the unit.
If the power cord is damaged, it must be replaced by the manufacturer, after- sales support or individuals with comparable qualifications in order to prevent any hazard.
The user is responsible for safely removing the ventilation unit at the end of its service life, in accordance with locally applicable laws or regulations. You can also take the unit to a collection point for used electrical equipment.
The unit is only suitable for housing construction and not for industrial use, such as swimming pools and saunas.
When handling electronics, always take ESD1 inhibiting measures, such as wearing a grounded wristband.
Modifications to the unit or to specifications stated in this document are not permitted.
Do not pull on the cord to remove the plug from the socket.
Always consult the installer of your combustion appliance to establish whether there is any risk of flue gases entering the home.
Check that the voltage shown on the type plate matches the local mains voltage before connecting the device. You will find the type plate on the top of the unit.

Components and connections

03.A Parts

1 Air duct connections
2 Air duct connections
3 Air duct connections
4 Air duct connections
5 Wall-mounted suspension bracket
6 Control unit with integrated operation
7 Air filter cover
8 Air filter cover
9 Bypass (valve)
10 Power cable 230 VAC| 11 Pressure sensor
12 Pressure sensor
13 Heat exchanger
14 Fan
15 Fan
16 Air filter Coarse 65% (≈ G4)
17 Air filter Coarse 65% (≈ G4)
18 Condensate drain connection
19 Condensate drain connection
20 Sheet metal (Plus variants only)
---|---

03.B Connections
DucoBox Energy Comfort (Plus) printed circuit board (PCB) Communication Print WIFI
With the optional Communication Print WIFI you have the option of allowing the DUCO ventilation systems to communicate via WIFI and/or ethernet. Additionally, a ModBus TCP/IP protocol has been developed to enable communication with external control systems. Linking with the Duco Home Control user app
To connect the Duco Home Control App to the DucoBox Energy Comfort (Plus), the Communication Print WIFI must be connected to a local router (via WIFI). Communication with the Duco Home Control user app is then done via the cloud.

|
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Connection Duco Ventilation App with D225-D325 variant
1 Communication Print| Connection Duco Ventilation App with D400 and Plus variants
1 Communication Print

Wiring

The DucoBox Energy Comfort (Plus) is able to communicate with slave components via a wireless (RF) or wired link. Both types of communication can be combined in one system.
Communication with non-DUCO components is possible via the Switch Sensor or one of the connections on the optional Communication Print (see page 9).
04.A Wiring diagram * Connecting a Power Supply to the DucoBox’s 230VAC connection can only be done with a Power Supply tested and approved by DUCO. Any references other than those offered by DUCO will void the guarantee of proper operation.
04.B Mounting external power supply
For types D225 and D325

1. D225-D325: Mount the junction box with the transformer on the unit.
2. D225-D325: Mounted junction box with transformer

For types D400 and the Plus variants

1. D400 and Plus variants: remove the transformer from the junction box and place it directly at the position provided on the PCB
2. D400 and Plus variants: mounted transformer

04.C Connecting cables to the PCB

1. Loosen the screws.
2. Slide the cap forwards.
3. Cut off one or more of the provided pieces from the housing to connect cables according to the wiring diagram above.
4. Provide a pull protection (for example with a tension strap) for 230V connections (for example when connecting a Power Supply to a D325 printed circuit board).

04.D Options power supply
For power supply, DUCO offers two options:

04.E RF (wireless communication)
RF components have a maximum free-field range of 350 metres. This distance will be much less in a building because of obstacles.
Therefore, you will need to take objects such as walls, concrete and metal into account. All slave components (except those which are battery powered) also act as repeaters. Signals from components that are unable to make a (strong) connection with the master component are forwarded automatically via no more than one other non-battery-powered component (= hop). Please refer to infor- mation sheet RF communication (L8000018) at www.duco.eu for further information.

DUCO RF

Power Supply| 230 VAC
Wiring| 1,5 mm²
Frequency| 868,3 MHz
Maximum distance| 350 m, free field (less through obstacles)
Maximum number of components| Up to 25 wireless components in a single system

04.F Wired (cabled communication)
Wired components can be daisy-chained (= recommended). This means that a separate cable will not be required for each component. A single central power supply can be used.
The cable required is a 0.75 mm² data cable. We strongly recommend using a shielded cable to avoid interfering with data communication.
DUCO WIRED

04.G ModBus TCP/IP
Communication with building management systems is possible, for reading out information as well as controlling the ventilation system. This requires the DucoBox Energy Comfort (Plus) to be equipped with an optional Communication Print WIFI. Consult the ModBus TCP/IP instructions at www.duco.eu.
04.H Perilex
The Perilex variants of DucoBox Energy Comfort (Plus) can be controlled via a wired controller with Perilex connection. Please consult the manual ‘Quick- Start Perilex plug’ via the DUCO website.

Mounting

05.A General guidelines
The proper functioning of your DUCO ventilation system depends entirely on the choice and implementation quality of the supply and return pipes! Therefore, keep the following guidelines in mind when choosing the installation location.
Before putting the unit into operation, it must first be connected to a duct network to prevent you from being able to touch the fan.

• Always use high-grade materials and seals in order to achieve the best airtightness. The entire system is based on proper airtight connections and duct routing.

• The ductwork is to be installed with as few bends as possible and hence the least resistance. The system is based on a maximum resistance of 150 Pa (for D225 and D325) and 200 Pa (for D400, D350, D450 and D550).

• Take care to ensure that the ducts are free from dents, long screws and extra obstructions on the inside. This is detrimental to proper maintenance and sustainable operation.

• The supply duct (fresh outdoor air) must be far enough away from a polluted source. This could be the exhaust duct, or an outlet duct of combustion air. Please refer to applicable local legislation (e.g. for BE: STS-P73-1 chapter 4.16.3; for NL: EN13779:2007 table A.2; for FR: DTU 68.3 P1-1-1 (6.5) + P1-1-4 (5.1.2) etc.) installation-tips-DucoBox-Energy-(en)

• To achieve maximum acoustic comfort, DUCO recommends installing a silencer on the ducts going into the house. A silencer may also be needed in order to prevent
  voices from carrying from one room to another.

• Ducts connected with the outdoor air must be adequately insulated in order to prevent condensation. Any ducting in uninsulated unheated spaces also needs to be insulated.

• Always install the extract air duct on the house side (ETA) draining towards the unit in order to avoid any build-up of condensation in the duct. A great deal of moisture-laden air can be extracted during showering or cooking.

• It is better to choose the supply of outdoor air on the north side, to avoid drawing in too warm air inside during the summer months.

• Ensure that the air inlet is accessible for any cleaning that may be required. A smaller passage area can actually have a major negative impact on system performance.

• DUCO recommends installing a minimum of 40 cm length of straight ducting before deflecting the air flow on the intake side of the supply.

Also consult our “12 not-to-be-missed tips” for an overview with the most important points of interest. 05.B Mounting DucoBox Energy Comfort (Plus)
Keep at least 60 to 100 cm clear at the front of the DucoBox Energy Comfort (Plus) to allow maintenance of the unit.
Wall mounting
The DucoBox Energy Comfort (Plus) can be fastened to a wall or if there is no wall available that will do, the DucoBox Energy Comfort (Plus) can be installed on an optional mounting chair.

1. Slide the cardboard packaging off the unit. If the unit is wall mounted, the cardboard can be removed from under the unit once it has been hung.
2. The unit must be mounted vertically against a solid wall with a minimum mass of 200 kg/m² for a vibrationfree suspension. Gypsum blocks or metal studs do not suffice! The type of condensate drainage and air ducting chosen will determine the exact height.
3. Fasten the suspension bracket horizontally to the wall, making sure it hangs level. Ensure at the same time that the screws and plugs are suitable for the substrate and the weight of the unit (max. 48 kg).

• screws and plugs not included in the supply 4. Hook the unit onto the suspension bracket. Use the handles in the cardboard at the bottom of the unit. 5. Remove the cardboard from the bottom of the unit. 6. Check whether the unit is spirit-level against the wall. This will ensure that condensate drains off properly.

Floor mounting

1. Slide the cardboard packaging off the unit.
2. Fit the optional mounting chair in accordance with the manual supplied with it and ensure that it is positioned on a solid, flat surface.
3. Place the DucoBox Energy Comfort (Plus) on the mounting chair and check again that it is level. This will ensure that condensate drains off properly.

05.C Humidity Sensor (optional)
The optional, separately available Humidity Sensor (0000-4723) is placed in the extract air duct of the DucoBox Energy Comfort (Plus) and centrally measures the humidity of the air extracted from the house. The sensor has a 2m connection cable and is powered from the DucoBox. A DucoBox Energy Comfort (Plus) contains a maximum of one Humidity sensor with central measurement in the ducts. Local moisture measurement can be done with optional Humidity (Room) Sensors. Connecting the Humidity Sensor to the DucoBox Energy Comfort (Plus)

1. Make sure the DucoBox Energy Comfort (Plus) is not under current.

2. Provide a 10.5-12 mm bore in the extract air duct (ETA) at a location no further than what can be bridged with a 2-metre connection cable. Attention: the position of the ETA duct depends on the chosen settings for starting the unit (see page20).

3. Slide the moisture sensor into the borehole. Make sure that the arrow marks on the sensor point in the direction of the airflow (= pointing to the DucoBox).

4. Attach the sensor with the self-tapping screws provided.
   Make sure the connection flange is pressed against the duct so that the assembly is airtight.

5. Connect the cable of the Humidity Sensor to the printed circuit board (see ‘Connections’ on page 9). The DucoBox Energy Comfort (Plus) will automatically recognise the Humidity Sensor when the device starts.

05.D Air ducts
Choosing air ducts
Flow rate and maximum air velocity are defining factors in choosing the right ducting in order to avoid generating any extra obtrusive noise and pressure drop (see table).
Make sure that the total counter pressure in the ducts is as low as possible (preferably ≤ 150Pa) and that the air velocity in every duct does not exceed 3 m/s.

Desired flow rate (m³/h)| Minimum recommended duct diameter
(mm)
---|---
0-30| ∅ 100
30-150| ∅ 125
150-250| ∅ 160
250-340| ∅ 180
340-550| ∅ 200

Integrating connecting sleeves
Based on the chosen duct diameter, connect the appropriate connectors (with rubber) to the ventilation unit. The 4 connection nozzles on the ventilation unit have a diameter of Ø160(F) for DucoBox Energy D225/D325 and Ø180(F) for all other versions.
Choice of connectors (with rubber):

The connectors can be connected airtight without additional fasteners.

|
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Push the connecting sleeve into the unit| Push the connecting sleeve into the unit up to the stop flange

Connecting air ducts

When connecting the channels, you can select either the LEFT-HAND configuration or the RIGHT-HAND configuration. This selection must be confirmed when you first boot the unit (see page20). Air duct connections are also indicated on the DucoBox Energy Comfort (Plus) by means of stickers. Fresh air Stale air

05.E External multi-zone valves (optional)
Mounting the multi-zone valves
Multi-zone valves are mounted in the supply lines (SUP) with a maximum of 4 valves. The part is provided with 2 connection flanges Ø160 (M).
When splitting the SUP ducts, provide a T-piece or Y-piece with a 45° radius to minimise resistance.
Provide 78 mm space between two channels and slide the channels over the multi-zone valve housing.
The housing is symmetrical and can be mounted in any direction. Position the housing so that the multi-zone valve can be easily retracted and operated.Provide a bracket on both sides of the valve. Stick the duct to the housing with aluminium tape.
Wiring and power supply of multi-zone valves![D550 DucoBox Energy Comfort

• zone valves 3](https://manuals.plus/wp-content/uploads/2023/04/D550-DucoBox- Energy-Comfort-zone-valves-3.png) For more specifications on the cabling to the DucoBox Energy Comfort (Plus) and the power supply, see 04.A page 10.
  05.F Pre-Heater (optional)
  Mounting the Pre-Heater
  The Pre-Heater is mounted in the ducts with outdoor air supply (ODA). The part is provided with 2 connection openings Ø180 (F).
  Depending on the duct diameter used, the appropriate connection pieces (see “Integrating connecting sleeves” page 16) can be applied to connect the Pre- Heater to the DucoBox and the ducts.
  Pre-Heater cabling and power supply
  The Pre-Heater communicates wired to the DucoBox via a pre-assembled communication cable to be connected to the unit’s control card (see 03.B page 9).
  In addition to the communication cable, a power cable is also mounted (230 VAC) with a grounding plug. Mount the Pre-Heater before the DucoBox Energy Comfort (Plus) is started up. During the start-up wizard you will then automatically be asked to confirm whether a Pre-Heater has been installed!If the start-up wizard has already been run and the Pre-Heater is installed after this, the Pre-Heater must be activated via the Display menu.
  SETTINGS-FROST-PROTECTION-HEATER EXT
  05.G Vents
  You should preferably use DUCO vents, such as DucoVent Basic or DucoVent Design. See the technical data sheet or fitting instructions for the DucoVent Basic or Design for details. When installing vents, it is best to observe a few rules:

  • Take care to ensure that the supply and exhaust vents are a minimum of 1.5 m van apart so they cannot come into contact.
  • It is preferable not to fit a vent right next to a wall in order to prevent soiling.
  • In order to cut down resistance, we recommend using 125 mm dia. vents only.
  • Maximum exhaust flow rate per vent: 75 m³/h.
  • Maximum supply flow rate per vent: 50 m³/h.

Commissioning

06.A DucoBox Energy Comfort (Plus) start-up
The unit must not be powered up until everything has been connected correctly. This includes the air ducting systems as well as all electrical components. Failure to connect correctly can result in the permanent destruction of the DucoBox Energy Comfort (Plus) or serious physical injury!
Switch on the power to the DucoBox Energy Comfort (Plus) (plug into power socket). When the DucoBox Energy Comfort (Plus) starts up for the first time, you will be asked to enter a few basic settings. Navigate using the arrow keys ( ▲ and ▼ ) and confirm using enter ( ◾ ).
General settings LEFT-HAND / RIGHT-HAND setting
The LEFT-HAND / RIGHT-HAND setting determines the function of the channel connections. Make sure that the selected setting matches the connections as described in page14. Fitting condensate drain
Position
The DucoBox Energy Comfort (Plus) must always be fitted with a condensate drain at the bottom. Placing the condensate drain depends on the selected LEFT-HAND / RIGHT-HAND setting. The display shows the correct position in relation to the selected setting.

content/uploads/2023/04/D550-DucoBox-Energy-Comfort-Position-4.png)

Connecting the condensate drain
The unit is supplied with a standard 32 mm drain with a threaded end. Condensate must be drained frost-free and under a slight slope. The condensate hose must not have any sharp bends.

Standard siphon
(not included in the supply)
When using a standard siphon connection, a water seal of at least 80 mm must be provided. Before start-up, it should also be filled with water, to avoid an air leak, prevent sewer odour in the ventilation system and obtain a water lock.| Siphon Flat
(not included in the supply)
Preferably use this flat membrane siphon from DUCO, as it is space-saving and less likely to cause air leaks. It can be fitted ‘dry’ and it has the advantage that it cannot dry out in hot weather.

Next steps
After this, you can proceed to the next steps to finish the installation:

• Pairing control components with the DucoBox Energy Comfort (Plus) (Electrical Installation, see page22).
• DucoBox Energy Comfort (Plus) air-side calibration (see page 25).
• A timer program can be set if there are no CO2 and/or humidity sensors fitted in the system (see page 29).
• Optional: changing settings. The factory settings will suffice in most cases. However, it is possible to configure settings such as the Bypass and comfort temperature to suit the occupants’ wishes (see page 30).

After this, the DucoBox Energy Comfort (Plus) is ready for use.
To avoid contamination of the ducts, it is recommended that the unit be operated only when there are occupants, to avoid dust from the construction phase in the ducts and the unit.
What in case of power failure?
If the power supply to the DucoBox Energy Comfort (Plus) fails, it will retain all its settings. Once power has been restored, the DucoBox Energy Comfort (Plus) will start up again and run. The correct time will need to be set again if the DucoBox Energy Comfort (Plus) is without power for more than (around) 8 hours.

Electrical installation

07.A Pairing components
Pairing control components with the DucoBox Energy Comfort (Plus)

1. Activate advanced mode:
   • Scroll down to ADVANCED and press enter.
   • Enter the installer’s code 9876 and press enter.

2. Go to the INSTALLATION menu.

3. Start the WIZARD.

4. Was the supply divided into zones via iAV valves?
   1. If YES -> go to step 5
   2. If NO -> go to step 6

5. Register the multi-zone valves by briefly pressing the ‘INST’ button of the respective zone valves.
   IMPORTANT: Remember the order of sign-up. This determines the order of the zones! The first valve logged on is zone 1, the next is zone 2 … with a maximum of 4 zones.

6. Pair the desired control components with the system. I.e.:
   a) DucoBox Energy Comfort (Plus) without zone control: all components
   b) DucoBox Energy Comfort (Plus) with zone control: only the components in the wet rooms (bathroom, toilet, kitchen, laundry room, …)
   Briefly tap any button of all components to be paired*. The LED on the component will start flashing green once it has been paired correctly. The number of paired components will be shown on the display menu. Confirm by pressing enter ( ◾ ) once all the desired components have been paired.

• Please refer to the control component manual for comprehensive instructions. 7. Only with zoned system:
  For example, each zone can be (part of) the day zone (living room, office, …) or (part of) the night zone (bedrooms).
  a) Pair the desired control components with zone 1. Then confirm by pressing enter ( ◾ ).
  b) Pair the desired control components with zone 2. Then confirm by pressing enter ( ◾ ).
  c) Only when 3 zones were defined: pair the desired control components to zone

3. Then confirm by pressing enter ( ◾ ).
   d) Only when 4 zones were defined: pair the desired control components to zone
4. Then confirm by pressing enter ( ◾ ).

All components have now been paired. This wizard can be run again if additional control components need to be paired at a later stage. All previously paired components will be retained in the network.
LED indications

Colour| Blinking (= installation mode)| On continuously| Off
---|---|---|---
Blinking slowly| Blinking rapidly
Red| DucoBox (master):
Network just cleared. (This LED indication is temporary; subsequently, the DucaBox restarts) Components (slavel: Not in network Operations (15 seconds after operationl: Error on the system (at Error/ warning-> on input)| Components (slavel: Logging in| Controls:
Error on the system (at Error /warning-> Auto)| In case of normal
operation, the DucoBox LED will turn off after some time in order to save energy.
Orange| Operations (15 seconds after operation):
Warning on the system (at Error/ warning -> on input)| | Controls:
Warning on the system (in case
of Error/warning) -> Auto)
Green| In network| In network, waiting to associate other components with this component.|
Yellow| Transition phase during adjustment
(waiting for pressure control to stabilise)
A registered control/sensor is in installation mode but no longer connected to the Master| | Initialising
(system configuration in progress)
White| | | Normal operation
The brightness of the LED on
the DucoBox and some control
components indicate the
current ventilation percentage
(bright = 100% ventilation).
Blue| Component is displayed (e.g. if changes are implemented via the master).
Magenta| DucoBox (master):
Software update via Communication
Print WIFI /SD card| | DucoBox (master):
Update completed

07.B Removing / replacing components
Removing paired components from the network or replacing is only possible within 30 minutes after the component is paired in or is restarted. Restarting can be done by disconnecting the power for a moment. After a time-span of 30 minutes, remove and replace operations are ignored. This is valid for all components from date of manufacture 170323.
Removing a component

1. Activate ‘Installer mode’ by long-pressing 2 diagonal buttons on a paired control. The LED will flash green rapidly.

2. Press once and hold a button on the component to be removed in order to remove it from the network.
   ATTENTION: any underlying components will also be removed from the network.

3. Deactivate ‘Installer mode’ by pressing the 4 buttons on a paired control simultaneously (or using the palm of your hand on a control featuring touch buttons). The LED will turn white.

Replacing a component

1. Activate ‘Installer mode’ by long-pressing 2 diagonal buttons on a paired control. The LED will flash green rapidly.

2. Briefly press twice on the button of the component to be replaced.

3. Tap once on the button of the new component. The latter will take on all settings / connections in the network.

4. Deactivate ‘Installer mode’ by pressing the 4 buttons on a paired control simultaneously (or using the palm of your hand on a control featuring touch buttons). The LED will turn white.

07.C Tips
The network can be wiped or a full reset of the DucoBox Energy Comfort (Plus) can be carried out in the event of any problems. To do this, refer to the following functions under the INSTALLATION menu (visible only after activating advanced mode, see page 31).

• RESET NETWORK: this removes all paired control components from the network.
• FACTORY RESET: this resets the entire system (= DucoBox Energy Comfort (Plus) + paired components) to factory settings. The calibration will be lost.

Use the DUCO Network Tool or the DUCO Installation App to read out information from components.
Never pair more than one system with RF components at the same time. This could result in components on the wrong system being paired or in components failing to respond.

Air-side calibration

Calibrating the DucoBox Energy Comfort (Plus) can be split into various steps:

1. Pre-setting supply and exhaust vents
2. Calibrating flow rates

For the system to work correctly, it needs to be configured.
This will ensure its operation is as quiet as possible and energy-efficient.
08.A Presetting vents
The exhaust and supply vents are installed in a moisture-laden/stale air extraction or fresh air supply duct. In order to calibrate the air supply and exhaust correctly, these vents must be set depending on the situation in accordance with the table below.
A maximum of 50 m³/h is recommended for supply vents in order to prevent excessive noise from being generated. For this reason it is recommended that the flow be split between different vents for higher flow rates.

SITUATION 1:
One vent per zone| SITUATION 2:
Multiple vents per zone with equal flow rates| SITUATION 3:
Multiple vents per zone with different flow rates
---|---|---
Set all vents to the fully open position,  regardless of the desired flow rate.
EXAMPLE:
| Set all vents to the fully open position, regardless of the desired flow rate. With DucoVent Design vents, turn the cone on the trim plate to the fully open position.
EXAMPLE:
| Set the vents so they match the desired flow rate in accordance with the table.
EXAMPLE:

DUCOVENT DESIGN| DUCOVENT BASIC
AND OTHER VENTS
---|---
| 100%
open
| 50%
open
| 25%
open

When using DucoVent Design exhaust vents, always leave at least the outer ring in place for acoustic effect. 08.B Calibrating flow rates
The DucoBox Energy Comfort (Plus) calibration mode can be activated using the display menu.
IMPORTANT, BEFORE CALIBRATING
Close all windows and doors. Ensure that all duct openings in the DucoBox Energy Comfort (Plus) are fully closed and that the DucoBox Energy Comfort (Plus) cover is closed! Avoid air leaks in the ventilation ducts. Open all interior doors between the various zones.
Calibrating the DucoBox Energy Comfort (Plus)

1. Activate advanced mode:
   • Scroll down to ADVANCED and press enter.
   • Enter the installer’s code 9876 and press enter.

2. Calibrating supply vents
   Scroll down to CALIBRATION → WIZARD and press enter. The DucoBox Energy Comfort (Plus) calibration mode starts up. Do not start manual calibration until you see the message on the display and follow the instructions on screen. Enter the flow rates for each zone if asked to do so.

3. In the ‘Adjust the supply vents’ step, select the duct with the highest flow rate and resistance and, using a pressure-compensated air flow meter, measure the flow rate at this vent. If the flow rate is too high or too low, you can adjust it using the arrow keys on the DucoBox Energy Comfort (Plus). Depending on the user controller version, this can also be done by pressing the (lower) and (higher) buttons on a paired user controller.
   Adjust the flow rate so as to obtain the desired flow rate at this vent. The flow rate can be fine adjusted at the vent.
   NOTE: The system needs around ten seconds to run stably when adjusting the flow rate using the buttons on the DucoBox Energy Comfort (Plus), the User controller or making large changes at the vent. The system will indicate when the calibration is stable. The flow rate cannot be measured correctly until after this time has elapsed.

4. Proceed now with the remaining supply vents. The flow rate from these other vents must only be adjusted at the vents themselves. Adjusting vents will not alter the flow of previously calibrated vents.

5. When all supply valves are adjusted, press the enter button ( ◾ ) on the DucoBox Energy Comfort (Plus) or you can confirm by long pressing the AUTO button of the control switch. Calibrating exhaust vents

6. Repeat steps 3 to 5 inclusive for all exhaust vents.

08.C Checking
The calibrated flow rates can be checked at the various vents once adjustment and calibration have been completed. Do this by going into advanced mode (see page 31) and select “CALIBRATION → VERIFY HIGH LEVEL”. The DucoBox Energy Comfort (Plus) will now ventilate for 30 minutes at its calibrated ventilation setting.
08.D Copying calibration data in case of serial construction
The DucoBox Energy Comfort (Plus) contains the ‘Calib by Code’ function in order to copy the calibration data to another unit. This is useful in projects with identical residential units and installations. In this case, only a single unit needs to run through the calibration procedure. The other unit will take over the calibration settings of the first unit by copying the calibration code.
Copying the calibration data to another unit

1. Make sure that all valves are adjusted identically (presetting + fine-tuning) for each installation.

2. Activate advanced mode:
   • Scroll down to ADVANCED and press enter.
   • Enter the installer’s code 9876 and press enter.

3. On the calibrated unit, navigate to CALIBRATION → CALIB BY CODE → GET CODE and write down this code.

4. On the units to be calibrated, navigate to CALIBRATION → CALIB BY CODE → ENTER CODE and enter the code.

5. The unit will indicate when the calibration is completed. This can take a few minutes. If the unit does not succeed in completing the calibration (e.g., due to a wrong code or differences in the installation), the user can cancel the calibration by simultaneously pressing the two arrow keys.

DUCO recommends to check the calibrated flow rates after the calibration (see page26).

Display menu

The DucoBox Energy Comfort (Plus) features a graphic display which enables all the necessary parameters of the unit to be easily adjusted. Settings and calibration can also be carried out using the free-of-charge DUCO Installation App, provided a Communication Print WIFI is present.
09.A Display overview and operation
Operation
The display on the DucoBox Energy Comfort has 3 buttons: up ( ▲ ), down ( ▼ ) and enter ( ◾ ). The arrow keys can be used to scroll through the menu. If the display has not been used in the normal operating mode, it will be deactivated after 1 minute. Press any button at random on the display in order to reactivate it. Press enter ( ◾ ) to retrieve the menu.
Main screen
The display will light up continuously when the DucoBox Energy Comfort (Plus) starts up until calibration has been completed.
Then the following main screen is visible:
The pictogram indicates the active position of the system (only if ‘UNIT CONTROL’ is active). See page29 for more information.

Frost protection is active (see page 31)
Time programme active (see page 30)
Menu is in advanced mode (see page31)
There is a fault.
The system might not be working properly.
3| Filter status
• 100% = new filter
• 0% = replace filter
4| Outdoor temperature
5| Indoor temperature
6| Ventilation position
The pictogram indicates the active position of the system (only if ‘UNIT CONTROL’ is active). See page 29 for more information.

09.B Change ventilation position
The ventilation position can be changed via the display menu or via one or more external controls (optional). The display menu and any external controls will always show the same position.

Ventilation positions

AUTO Automatic setting (= recommended)
The system ventilates on a low number of revolutions and will only accelerate if needed. This guarantees an operation that is as energy-economical as possible. Accelerating occurs based on CO² and/or humidity measuring (if sensors are installed) or based on a pre-set time programme (see page30).
Low
The system exhausts at 10% of maximum capacity.
Medium
The system exhausts at 50% of maximum capacity.
High
The system exhausts at 100% of maximum capacity.

Changing the ventilation position via the unit
The DucoBox Energy Comfort (Plus) has the option to view and change the ventilation position via the display menu. For this pur- pose, the following settings must be activated: SETTINGS → UNIT CONTROL (standard = ON). If this option is active, the main screen will show the ventilation position (see page 28) and using the arrow keys ( ▲/▼ ) will enable changing the ventilation position. Open the menu via enter ( ◾ ).
The selected ventilation position on the unit is permanent (indicated in purple in ‘Controls’) until the user activates another posi- tion. Control is needed if you want to set temporary manual positions. DUCO recommends the AUTO position for an optimal and energy-efficient operation.

09.C Settings for the resident
The following settings can be adjusted by the occupant:

Date & time
During the initial installation, carried out by the installer, the date and time will be set correctly. Every DucoBox Energy Comfort (Plus) will remember the date and time for a number of hours after a power cut. If the date and time have nevertheless been set incorrectly, they can be corrected manually via the menu.
The date and time will synchronise automatically if the DucoBox Ener-gy Comfort (Plus) is equipped with a Communication Print WIFI and the DucoBox Energy Comfort (Plus) is connected to a computer network with internet access. If this is not the case, the date and time can be set by the following method.

Setting date & time

1. Go to SETTINGS → DATE & TIME.
2. Change the hours by pressing the ▲ or ▼ button and press enter ( ◾ ) to confirm.
3. Change the minutes by pressing the ▲ or ▼ button and press enter ( ◾ ) to confirm.
4. Change the day, month, year and time zone in the same way. Date and time are now set correctly.

Time programming

A set timetable can be programmed into the ventilation unit.
This is desirable when there are no CO2 and/or humidity sen- sors present in the ventilation system. With the timer pro- gramme, the DucoBox Energy Comfort (Plus) will increase or decrease the ventilation in the house. The timer programme can be adjusted by the user on the DucoBox in the following way.
The timer programme is deactivated by default.
The timer programme can also be adjusted using the Duco Installation App.

Adjusting the timer programme

1. Go to SETTINGS → PROGRAM.
2. Select the (Mon-Fri + Sat-Sun or Mon-Sun) mode, Mon-Fri + Sat-Sun is standard.
3. Select the desired period in the week.
4. Select ADD to insert a new time point (up to 8) into the programme. Set the desired time and ventilation level using the ▲ and ▼ arrow keys. Confirm using enter ( ◾ ).
5. Add more time points.
6. Select BACK to go back out of the menu in order to select another period or zone.
7. You can exit the menu completely by pressing ▲ and ▼ simultaneously.

Bypass
The system is able to partially or completely deactivate heat recovery if the temperature in the house rises too high, e.g. due to solar heat gain in hot summer weather. In this case, the bypass will direct the air extracted from the house either partially across the heat exchanger or not at all. Fresh outdoor air will therefore not be heated up by warm stale indoor air. This relatively cooler outdoor air entering the house will be used to reduce the temperature in the house as far as possible down to the desired temperature.
By default, the setting for automatic bypass operation is activat- ed, but it can also be set manually.
Automatic operation (= recommended)
The bypass will gradually open if the temperature in the house rises too high and the outdoor temperature is lower than the indoor temperature. The temperature of the fresh air supplied will be colder than the indoor temperature by up to a maximum of 1 °C; this will gradually cool the house down without an uncomfortable feeling of cold air.

Setting the bypass manually
If so desired, the user can deactivate automatic bypass opera- tion by opening or shutting it manually.

Bypass settings
SETTINGS
BYPASS
STATUS (for information)
Current bypass status.
0%: bypass shut (= heat exchange active)
100%: bypass open (= no heat exchange)
MODE
AUTO (= standard): automatic operation based on measured temperature and comfort temperature setting
OPEN: no heat exchange at any time
SHUT: always heat exchange
ADAPTIVE
If MODE = AUTO and ADAPTIVE = ON, the system will automatically seek the most pleasant-feeling temperature thanks to a smart comfort temperature control. The system will adjust the desired indoor temperature based on the outdoor temperature and the season of the year.
COMFORT TEMPERATURE
In AUTO mode the system will aim to shift the temperature in the house to this comfort temperature. Standard: 21 °C

09.D Advanced settings
Gaining access to menus intended for installers only requires the advanced mode to be activated. When the advanced mode is active, additional items will appear on the menu, which enable the unit to be put into operation.

Activate the advanced mode

1. Press any button at random on the DucoBox Energy Comfort (Plus) display.

2. Scroll down to ADVANCED. The padlock next to the menu indicates that the ad-vanced mode is locked. Press enter.

3. Enter the installer’s code 9876 and press enter. Now additional items are availa- ble in the menu. The padlock ( ) on the display menu indicates that the advanced mode is active. The menu will exit the advanced mode after 30 minutes of inactivity or after restarting the DucoBox Energy Comfort (Plus). The advanced mode can also be closed down manually using the CLOSE ADVANCED menu command.

Frost protection
There is a possibility at low outdoor temperatures that the moisture in the exhaust air will condense in the heat exchanger. The DucoBox Energy Comfort (Plus) is equipped with a mechanism to prevent freezing of this condensate. The unit will adjust air flow rates in such a way that freezing will be prevented (= temporary imbalance method).
The frost symbol ( ) will be shown on the display whenever frost protec- tion is in operation. The frost protection cannot be switched off.

Frost protection settings
SETTINGS
FROST PROTECTION
STATUS (for informa- tion)
STANDY-BYfrost protection standby
ACTIVE: frost protection in operation
09.E Menu structure
The chart below contains all the menus in the DucoBox Energy Comfort (Plus). Menus with a padlock ( ) are only visible to the installer after entering the installer’s code 9876.
The chart below may differ depending on the DucoBox Energy Comfort (Plus) software version.

INFO
TEMPERATURE SENSORS (for information)
The DucoBox Energy Comfort (Plus) features 4 temperature sensors which measure the temperature at each duct connection. The values of these temperature sensors are indicative.
PRESSURE SENSORS (for information)
The pressure measured in the unit relative to the atmosphere. These values give an indication about the performance of the system calibration.
BOX SENSORS (for information)
Measured values for Humidity Boxsensor.
ERROR LIST
Overview of error messages and/or warnings.
DUCO SERIAL NUMBER (for information)
Serial number of the DucoBox
SOFTWARE VERSION (for information)
In any communication with DUCO, you may be asked to state the software version of your DucoBox Energy Comfort (Plus). Please keep this number to hand for any communication.
SOFTWARE UPLOAD
All components in the network can also receive a software update via the DucoBox. The ‘Software update’ selection field can be used to read out the percentage status of the update of these components.
SERVICE CODE
This code will enable the DUCO service team to read out the composition of your ventilation system and its paired components.
UNIT INFO (for information)
In any communication with DUCO, you may be asked to provide unit details such as correct name, type, country setting.
FILTER
FILTER STATUS
Remaining filter service life.
REPLACE FILTERS
Step-by-step instructions for replacing filters.
FILTER CLEANING
Step-by-step instructions to clean the filters.
INSTALLATION
WIZARD
Run this wizard to pair components with the system.
RESET NETWORK
This removes all paired control components from the network.
FACTORY RESET
Resets the entire system (= DucoBox Energy Comfort (Plus) + paired components) to factory settings. The calibration will be lost.
ADVANCED / CLOSE ADVANCED
Activate / deactivate advanced mode to show / hide functions with a padlock ( ).

• Only if at the first start-up, when choosing the country, “the Netherlands” was selected.

SETTINGS
COMFORT TEMPERATURE
The DucoBox Energy Comfort (Plus) will seek to maintain the temperature in the house at the set value. The DucoBox Energy Comfort (Plus) also features a smart algorithm which will automatically adjust the comfort temperature depending on the outdoor temperature. This will maintain the temperature in the house at the most comfortable level possible for the resident.
With zoned control, a comfort temperature can be set for each zone.
UNIT CONTROL
Option to change the ventilation position via the display menu
PROGRAMME A set timetable can be programmed into the ventilation unit. You can use this to increase or decrease the ventilation in the house at fixed times.
BYPASS
The DucoBox Energy Comfort (Plus) features a fully automatic bypass. This enables the house to cool down to the desired comfort temperature during summer nights. It is also possible to deactivate the bypass temporarily or completely to increase user comfort.
DATE & TIME
The DucoBox Energy Comfort (Plus) has an inbuilt clock which is required for the time-dependent controls.
LANGUAGE
The menu language can be changed to match the user’s language. The following languages are available: Dutch, English (standard), French and German.
LAN SETTINGS
Platform where LAN settings can be defined. Only active when a Communication Print WIFI is connected, AND there is a positive response to the IP address query.
MODBUS
Platform where ModBus settings can be defined. Only active when a Communication Print WIFI is connected, AND there is a positive response to the ModBus address query.
CONFIG
Other settings.
FROST PROTECTION
Status of frost protection: STAND-BY or ACTIVE. See also page 31. Other settings such as HEATER AUTO or OFF HEATER EXT (pre-heater) ABSENT or PRESENT
NIGHTBOOST
Activate or deactivate and set parameters of the nightboost function.
*BUILDING TYPE
Selection of the parameter HOUSE (landed) or FLAT (non-landed).
CALIBRATION
WIZARD
Run this wizard to calibrate air flow rates correctly.
VERIFY HIGH LEVEL
Sets the system temporarily to high level to enable calibrated air flow rates to be verified. Active only if adjustment has been carried out.
CALIB BY CODE**
To copy the adjustment of an existing system, a code can be requested or read in.

Maintenance & service

Please refer to the maintenance instructions at www.duco.eu and view the videos on duco.tv for more information.
For service problems as a user:
Please contact your installer. Keep the serial number of your product to hand.
For service problems as an installer:
Please contact your retailer of DUCO products. Keep the serial number of your product to hand.
The serial number is located on the sticker at the top of the DucoBox Energy Comfort (Plus) or can be consulted via the display INFO – DUCO SERIES NUMBER.

Error code management
In case of errors (ERROR) or warnings (WARNING) the following icon appears on the display of the unit .
The messages can be consulted via the display menu INFO – ERROR LIST. An overview of codes and related actions can be found on the website www.duco.eu.
Via the display menu, under SETTINGS-CONFIG-DUCOBOX ENERGY-UC ERROR MODE , the control principle can be selected for dis-playing errors or warnings via the linked sensors and/or controls. There is a choice between:

• DISABLED: not activated – no error messages via linked controls or sensors. The error codes can then only be detected by the
  user via the display.

• ON_INPUT: at ERROR or WARNING when operated, a red or orange LED on the relevant sensor (excl. sensors without control) or control (excl. battery-operated controls) will blink for a few seconds. This remains active until the error code is handled.

• AUTO: at ERROR or WARNING a red or orange LED appears on all linked sensors or controls (excluding battery-operated controls).
  The LED remains lit until the error code is handled.

Cleaning/replacing filter
To clean or replace the filter, a Wizard can be followed via the display: SETTINGS – REPLACE FILTER.
The patented Dynamic Airflow filters have a beneficial impact on efficiency and power input. These must always be placed correctly in the unit by matching the ‘L’ and ‘R’ icons (marked both on the filter and on the unit).

How to replace filters?
Left-hand filter: make sure the ‘L’ on the filter and on the DucoBox are lined up nicely

How to replace filters?
Right-hand filter: make sure the ‘R’ on the filter and on the DucoBox are lined up nicely

Warranty

All warranty conditions concerning the DucoBox and DUCO’s ventilation systems can be found on the DUCO website.
All complaints are to be reported to DUCO by the DUCO distributor with a clear description and the order/invoice number under which the products were delivered. To do so, please fill out the complaint registration form, found on the DUCO website, mentioning the serial number and send it to service@duco.eu.

Legislation

Product card, EC declaration of conformity and energy labels can be viewed and downloaded at www.duco.eu.

L2003212 Installation guide for DucoBox Energy Comfort (Plus) (Revision A | 18.10.2022)
Installed by:

L2003212 Document last modified on 18.10.2022 (revision A)

References

• DUCO Ventilation & Sun Control
• Duco.tv
• DUCO Ventilation & Sun Control

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