Viessmann - Wired connection - Multi-zone heating/cooling
What do you need?
In short | Extra information | |
---|---|---|
General | Specific electrical wiring is required. | |
![]() | Your Niko Home Control installation meets the following requirements:
| You need the following if you want to use the Niko Home control multi-zone thermostat control:
|
![]() | Your partner system meets the following requirements:
| A contact on the heat pump indicates whether the heating/cooling mode is active. |
Wiring diagram for multi-zone heating/cooling
The table below shows how you can use Niko Home Control with your Viessmann system and enable Niko routines.
Niko Home Control set-up | Wiring diagram | Enable a Niko routine with a partner |
---|---|---|
Multi-zone heating/cooling – | Vitocal with W01C: ![]() Vitocal with One Base: ![]() | A contact on the heat pump provides the signal to the Niko Home Control installation to switch from heating to cooling mode and vice versa. When using Viessmann Vitocal with W01C-control:
When using Viessmann Vitocal with One Base:
|
Multi-zone heating/cooling with zone valves can only be performed if the following conditions are met:
The heat pump has a buffer tank connected in parallel, as well as an additional bypass circuit.
The heat pump only takes into account the weather-dependent control, clock program (or manual) and flow temperature T0.
The heat pump decides between heating or cooling, depending on the weather. The Niko Home Control thermostats must be forced/blocked in the relevant mode via the Niko Home Control digital input module connected to output PK2.
Input closed = cooling
Input open = heating
To view HVAC programming examples, please see Niko Home Control programming examples.