User Manual - Page 9

and heat recovery units) and room thermostats.

Via the OpenTherm® protocol, the Receiver box of the T6 / T6R thermostat constantly communicates with the connected

appliance.

The T6/T6R thermostat controls, via the Receiver box, the OpenTherm® communicating appliance modulating. This means

that, depending on the heat demand, the burner capacity is adjusted in the appliance. This creates a very accurate control

of the room temperature.

On top of that, this method of temperature control is more energy-efficient and environmentally friendly.

time of the boiler to get heated to the control setpoint.

It's an algorithm which optimizes the cycle rate and tries to get the boiler on for the longest time.

Most Combi-boilers have a small internal storage for hot tap water. By keeping a number of liters of hot water, the

appliance can supply hot tap water directly without having to heat it up first. With a longer period of none use or absence,

for example sleep or holiday, the hot water storage does not have to be kept at a high temperature.

The T6/T6R thermostat can provide additional savings here. With the last programmed period (sleeping)

the hot water status can easily be switched to a saving level or completely be switched off.

With these Combi-boilers, a menu "Hot water during sleep" (on/off) will be available in the installer menu (page 6).