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2.10 SPECIAL FUNCTIONS
The settings available on room control via wireless probes are accessible in the Zone menu with Service access (See boiler instructions).
Enable room probe (default = YES): as a factory setting, after assigning the wireless probe to the zone, room control settings are possible
(with Comfort set, reduced set and manual set). By varying this setting to "No", the system abandons control over the room probe even if it
remains assigned and sends the room temperature value visible on the display; the room control in these condi-tions will remain linked only to
time slots (on-off) and any room thermostats. This setting can be used for temporary abandonment of the room temperature control, still it
can be reactivated in any way.
"Modul. with room probe" (default = YES): the factory setting allows the probe to determine the suitable boiler flow temperature in
order to maintain the required room temperature. By varying this setting to "No", the boiler de-livery temperature will not undergo any
variation due to the room temperature.
"Modul. with ext. probe" (default = YES): the factory setting allows the external probe to determine the boiler delivery temperature suitable
for the external cli-matic conditions. By varying this setting to "No", the boiler delivery temperature will not undergo any variation due to the
external temperature.
Reduced (default = NO): The 'Reduced' function is NOT visible on the display if the room probe is configured. Even in the case of Enable
Room probe = No, the 'Reduced' function is NOT displayed.
Temp. Off in hysteresis (default = 0.2 ° C): this setting is used when the "Modul. with room probe" operation is deselected. Without modulating
control, the room probe will determine a heating request when the room temperature drops with respect to the desired value of this
parameter (default 0.2°C) and will turn off the heating when it rises with respect to the desired value by the same value. It is emphasized that
this parameter has no effect when the modulating control with room probe is active; in this case the hysteresis will be dynamically linked to the
speed of changes in the room, over a range from + 0.5°A to - 1.5°C.
System inertia (default = 10): With the "Modul with room probe" functioning active, it establishes the reaction speed of the system
according to the type of system present. The reference values are the folowing:
Value
Type of System
5
System with little thermal inertia (for example convector fans)
10
System with average thermal inertia (for example radiators)
20
System with high thermal inertia (for example underfloor systems)
Anti-freeze enabling (default = YES): the factory condition allows room anti-freeze control when the zone operating mode is set as Off.
By selecting No, no room anti-freeze protection will be activated.
Antifreeze temperature (default = 5.0 ° C): On this parameter it is possible to customize (from + 0.5°C to + 10.0°C) the room antifreeze
control temperature.
2.11 AVAILABLE ADJUSTMENTS ON DISPLAY WITH WIRELESS ROOM PROBES
After the correct association, the zone menu is available for managing heating operation with a wireless room probe; if only one zone is
associated, the zone 1 menu will be available, while if the appropriate zone actuator cards are con-nected and set, zone 2 and zone 3 will
also be available.
With only 1 zone, the heating control knob on the boiler control panel will offer the adjustment of the maximum heating temperature (or
off-set if there is also an external probe). Room temperature settings and adjustments are available by accessing the zone menu.
With more zones connected, the action on the heating control knob of the boiler control panel will determine direct access to the zones
menu where you can choose the zone of interest and select the value to vary (both flow temperature and room temperature).
For a detailed description of the various parameters available and the required path within the zone menu, refer to the boiler instruction
manual.
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