Ventilation module
Description
The ventilation module controls the central ventilation system via the Niko Home Control installation. The module is suitable
for use with type C systems (mechanical extract ventilation) or type D systems (mechanical supply and extract ventilation
with heat recovery). Connect the ventilation system to this module as opposed to the three or four-way switch supplied with
the system. Some ventilation systems have a module, which is available separately, to control the system with a home
automation system.
Overview
Operation
The bus signal of the controller activates one of the outputs on the ventilation module. Each output corresponds with one setting on the ventilation unit: low (eco), normal of high. The outputs can also be activated manually via the buttons on the ventilation module. Please remember that the activation is only temporary as it will be overruled by the next bus communication.
The outputs are activated or deactivated via low-energy bistable relays in the module.
Installation
Contact the HVAC installer prior to commencing the installation process. Contact the manufacturer of these systems for more information on how to properly adjust the settings.
Wiring diagram
Follow the steps below to install the module:
- Ensure that the installation is disconnected from the mains.
- Refer to the manual of the ventilation unit to check whether it should be connected using two or three control wires.
A ventilation unit can generally be connected in two different ways:
- With two-wire control, you connect the common terminal from the ventilation unit in between two control wires. If no control wire is selected, the ventilation system will function at the lowest setting.*
- With three-wire control, you connect the common terminal from the ventilation unit in between three control wires. Each control wire represents one specific ventilation setting.
| Ventilation setting | Three-wire | Two-wire |
|---|---|---|
| low(eco) | contact 1 | * |
| normal | contact 2 | contact 2 |
| high | contact 3 | contact 3 |
- Press the module onto the DIN rail until it clicks into place.
- Connect ventilation setting low (eco) to screw terminal 1’ (only for systems with three-wire control), normal to screw terminal 2' and high to screw terminal 3’.
- Connect the common terminal from the ventilation unit to the L screw terminals.
- Connect the ventilation module to the module before it. Slide the sliding contact of this module to the right until it clicks into the ventilation module. This will ensure that the bus and the power supply voltage are connected.
Programming the ventilation module
Use the programming software to select when and for how long the ventilation system should remain activated for each setting, i.e. low (eco), normal and high. You can also select how long the highest setting should remain activated in boost mode. Furthermore, ventilation control can be incorporated in other Niko Home Control functions, such as the eco-function or calendar-based functions.
Error codes
When the module is functioning properly, the STATUS LED will light up in TEST mode only. If one or several errors occur, the LED will blink to indicate the error code of the error with the highest priority. The table below provides an overview of all error codes.
| LED | ACTION | ERROR | POSSIBLE SOLUTIONS |
|---|---|---|---|
| STATUS LED | Blinks - one pulse per two seconds | Software error | Incorrect software version* *Download the latest software version from the Niko website to upgrade the module |
Technical data
- maximum load: 230 V – 16 A per channel
- screw terminals to control 3 settings: low (eco), normal or high
- 2 x 4 screw terminals for 3 x 1.5 mm² or 2 x 2.5 mm² or 1 x 4 mm²
- dimensions: DIN 2E
- sliding contact to connect the module to the following module on the DIN rail
- CE marked
- ambient temperature: 0 - 45°C