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6.2.3 - Thermoregulation - Choosing the operating modes
The MODO FUNZ parameter is one of the most important to be adjusted. On the basis of the setting of this
parameter, the type of thermoregulation to be used in the system is chosen. Therefore, it is indispensable to
choose the type of thermoregulation carefully, in relation to the type of system owned, in order to achieve the best
degree of comfort envisaged.
Pressing key KM down for more than 10 seconds, then key K2 (IMP), and subsequently key K4 (>>) until MODO
FUNZ is displayed, it is possible to select, using keys K+ e K-, one of the 4 types of thermoregulation available:
1 · room thermoregulation with set supply temperature
2 · room thermoregulation in relation to the room temperature
3 · room thermoregulation in relation to the external temperature, with or without room temperature
4 · thermoregulation with exclusion of the room temperature and two-point adjustment
Room thermoregulation with set supply temperature (MODO FUNZ = 1)
The user sets the room temperature desired and the remote control generates a heat request to the boiler (pump
comes on), every time the room temperature falls below the temperature requested. Vice versa, every time the
room temperature rises above that set, the remote control interrupts the heat request to the boiler (pump switches
off). In this operating mode, the supply temperature to the radiators is set at the value set on the REG RISCALD
parameter (see section 6.2).
This type of thermoregulation is recommended for a system with radiators or convector fans
Room thermoregulation in relation to the room temperature (MODO FUNZ = 2)
The heating supply temperature is calculated using a PID type algorithm so that the room temperature, read by
the remote control, corresponds with that set by the user; the value calculated corresponds to the value of the
heating supply temperature (TEMP CALC parameter, see section 6.1). This value however is always limited to the
value set on the REG RISCALD parameter (see section 6.2.8).
This type of thermoregulation is recommended for systems with radiators, convector fans or radiant panels where
the temperature of the room where the remote time control is located is characteristic of all the rooms heated.
Room thermoregulation in relation to the external temperature, with or without
room temperature (MODO FUNZ = 3)
The heating supply temperature is calculated using a formula which takes into account the CURVA EST selected
(see section 6.2.1); the value calculated (TEMP CALC parameter, see section 6.1) corresponds with the setting of
the heating supply temperature. This value however is always limited to the value of the REG RISCALD parameter
set (see section 6.2.8).
In this operating mode, if the COMPENS AMB parameter (see section 6.2.2) is set at zero, the adjustment of the
supply temperature is made without considering the room temperature read by the remote control. Therefore, the
installer will have to find the right angle of the line, adjusting the CURVA EST parameter as per section 6.2.1 and
the right parallelism, adjusting the room temperature as per sections 5.2 and 5.8.
This type of thermoregulation is recommended for a system with radiant panels where the rooms heated are
served by room thermostats which act on the area valves, or in systems where it is not possible to install the
remote control in a place where the room temperature registered is characteristic of the building. In such cases,
the supply temperature is adjusted exclusively in relation to the external temperature according to the ratio shown
in the graphs as per figures 4 and 5.
If the COMPENS AMB parameter (see section 6.2.2) is set at a value other than zero, the room temperature
registered by the remote time control intervenes to correct the supply temperature on the basis of the matters
already illustrated in section 6.2.2 and figures 6 and 7.
This type of thermoregulation is recommended for a system with radiant panels where the temperature of the
room in which the remote time control is located is characteristic of all the rooms heated.
In all the afore-mentioned cases, when the external temperature is greater than the calculated supply temperature
(parameter TEMP CALC as per section 6.1), the heating is shutdown.
Thermoregulation with exclusion of the room temperature and two-point
