General solution: Multi-zone fan coil unit control
What do you need?
Niko requirements
Your Niko Home Control installation meets the following requirements:
It has a connected controller II.
It is configured with the most recent programming software.
You need to install the following additional products:
You will obtain the best results if you connect both the fans and the valves of your system. However, you can also connect either one.
Required additional product | Reference number | |
|---|---|---|
Fan control | Analogue control module(s) | |
Valve control | Heating or cooling module(s) Switching module (in some cases*) | |
Thermostat (one per zone) |
|
The amount of modules that you need depends on the properties of your system. Consult the wiring diagrams to fully understand the requirements.
You need:
one free output contact on the analogue control module(s) for each zone equipped with a fan coil unit that you want to connect
one free output contact on the heating or cooling module(s) for each zone equipped with a thermal actuator valve that you want to connect
one or two free contacts to connect to the heat pump (check the requirements and wiring diagrams of your specific heat pump):
one to signal heating/cooling demand
one to signal heating/cooling selector (only needed if your heat pump is capable to provide both warm and cool water)
*For example, in a configuration with two zones for heating and cooling, you will use one heating or cooling module which has up to four HVAC contacts.
Third party requirements
Your system meets the following requirements:
It is a fan coil unit, that contains a water loop and a fan.
Your device can be controlled via:
one thermal actuator valve for each zone
one 0–10 V contact for each zone
It is connected to a heating and/or cooling unit for hydronic applications, such as a heat pump, boiler, etc.
Also check the specific requirements for your water source (heat pump, boiler, etc.)
Wiring diagrams
In case of a heating system:
3 zones | 6 zones |
|---|---|
 |  |
In case of a heating and cooling system:
2 zones | 5 zones |
|---|---|
 |  |
Programming
Configure the analogue control module and/or heating or cooling module(s) in the programming software. Depending on the amount of zones, you can use the following programming examples as inspiration: