In this article we will see how to manage a floor system divided into four zones by adopting solutions for  wireless thermoregulation  and  Wi-Fi  Seitron. The products used are:

• Hygge Home Kit - KTY003 consists of:
  • Hygge programmable thermostat - DTD31B 
  • Gateway Hygge Way - GG0315 
  • Hygge radio receiver - DRR30X 
• Hygge programmable thermostat -  DTD31B  
• Multi-zone radio Hygge receiver -  DRR32M  

The aim is to arrive at a  independent management of the four environments , combined with remote control of the system via smartphone.

The desire to upgrade the heating system by adopting modern management solutions from smartphones via Wi-Fi often leads to difficulties due to the need to carry out building works. Most  wifi thermostats  is in fact powered by 230V and the problem of  lack of power cables  in the point used for installing the thermostat. 

In cases like this, or in any case in similar situations that require a high freedom of installation, a solution that combines wireless communication with the boiler with Wi-Fi with the smartphone is undoubtedly preferable. 

The Seitron solution designed to meet these needs is Hygge, a  wifi chronothermostat battery-powered  with wireless communication. To the advantages deriving from the combined use of these technologies, the DRR30X radio receiver, in addition to being equipped with a dedicated control relay, adds the possibility of  communicate via Modbus with the boiler , thus exploiting the possibility of  modulation  which promotes further savings compared to the classic chronothermostat. 

Advantages of a wireless system with  wifi chronothermostat :

• No building work 
• Total freedom of installation 
• Remote control from smartphone 
• Easily expandable system 
• Modbus output for modulation 
• Energy saving 

The purpose of this article is to illustrate how to connect and configure Hygge to manage a  4-zone heating system . To help us choose the number of receivers and thermostats needed to best manage the system, we can start by answering the following questions:

• How many zones should I manage? 
• How many solenoid valves (heads) are there for each zone in the manifold?  
• What is the system powered by (boiler, heat pump, etc.)? 

Assuming you have to manage 4 zones, with a total of 4 actuators and the system powered by a boiler, the typical situation would be like the one exemplified in the diagram in figure 1. 

As we can see, each zone is equipped with a dedicated Hygge chronothermostat which communicates at the same time with the DRR30X receiver, connected to the boiler, and with the DRR32M (zone) receiver, connected to the reference actuator. In this configuration the DRR32M receiver manages up to a maximum of two zones and is therefore coupled to two Hygge. 

This configuration is possible when the heads are all in the same manifold. 

The starting point for managing a four-zone system is the KTY003 kit, which includes the Hygge chronothermostat, the DRR30X receiver and the Hygge way Wi-Fi gateway. 

The DRR30X, equipped with an SPDT relay output and a Modbus output, takes care of managing the boiler, while for the zone valves/actuators we must use DRR32M receivers (2 or 4 depending on the situation described in point 2). 

ATTENTION

• If the load driven by the DRR32M receiver operates at mains voltage, the connection must be made via an omnipolar switch compliant with current regulations and with a contact opening distance of at least 3 mm in each pole. 
• The 24V power supply must be equipped with overload protection. 
• Before making any connections, make sure that the electricity supply is disconnected. 

The only devices that require an electrical connection to start up the system are the DRR32M and the DRR30X.

DRR32M-Zone valve/actuator connection

The operations below must be repeated for each necessary DRR32M, the number of which, as seen,  varies based on the number of zones and their arrangement .

• The  DRR32M  can be powered at 230VAC - 50Hz or 24VAC. Terminals L and N power the receiver at 230VAC and must be connected to the mains voltage with the neutral on terminal N (Fig. 2). Alternatively, connect the power supply to terminals A and N to power the receiver at 24VAC (Fig. 3).
• Terminals 1, 2 and 3 are the voltage-free, SPDT-type contacts of the output relay relating to channel 1. Terminals 4, 5 and 6 are the voltage-free, SPDT-type contacts of the output relay relating to channel 2. Figures 3 and 4 show how to connect the valves that will be powered, using the NO contact of the relay, when the outputs are activated, i.e. when the chronothermostat requests heat (heating).

The devices included in the KTY003 kit are already pre-paired at the factory . After making the connections, the only operation to carry out will be to associate the Hygge way gateway with the Wi-Fi network via the Seitron Smart app.

To add the DRR32M it will instead be necessary to follow the self-learning procedure  described in the "Pairing of additional devices" section (page 11) of the manual.

Finally, the addition of further Hygge and DRR32M receivers to the system must be carried out following the diagram below.

The examined case can easily be extended to situations in which it is necessary to control multiple areas. In particular, you will always have to start with the purchase of a KTY003 kit and extend it based on the number of zones to be managed. 

As we have seen, based on the physical location of the actuators, we may need one DRR32M receiver per zone, or control up to 2 zones with the same receiver. 

In any case, it will be advisable to provide a Hygge DTD31B chronothermostat for each zone.