38
3.2.11.
Selection of the operating range in heating
The heating water temperature adjustment range depends on the selected operating range:
- standard range: from 20°C to 80°C;
- reduced range: from 20°C to 47°C.
Using parameter P04 it is possible to select the climatic curve (only for operation with external probe). Parameter P21 modifies the
operating range in heating. The range can be selected even in the absence of the external probe.
The standard range is active with P21 = 0, while the reduced range with P21 = 1.
The waiting time between one ignition and the next of the boiler, which serves to avoid frequent ignition and shutdown of the boiler during
heating operation, is equal to 3 minutes for both ranges, which can be modified with parameter P05.
The selection of the operating range must be carried out by the installer or by an Authorized Assistance Centre.
3.2.12.
Connection to room thermostat (optional)
The boiler can be connected to a room thermostat (optional, not compulsory).
The room thermostat contacts must carry a load of 5 mA at 24 VDC.
The ambient thermostat cables must be connected to terminals 1 and 2 of the terminal board (fig. 21 and fig. 22).
I cavi del termostato ambiente non devono essere inguainati insieme ai cavi dell’alimentazione elettrica.
3.2.13.
Installation and operation with Open Therm Remote Control (optional)
The boiler can be connected to an Open Therm Remote Control (optional, not compulsory, supplied by the manufacturer).
The installation of the Remote Control must be entrusted exclusively to qualified personnel.
Only use original remote controls supplied by the manufacturer.
If non-original remote controls not supplied by the manufacturer are used, correct operation of the remote
control itself and of the boiler is not guaranteed.
The Remote Control cables must be connected to terminals
A
and
B
of the terminal board (fig. 21 and fig.
22). To install the remote control, follow the instructions attached to the remote control itself.
Here are some precautions for installing the Remote Control:
-
the Remote Control cables must not be sheathed together with the power supply cables:
if this is not possible, any disturbances
due to other electric cables could cause malfunctions of the Remote Control itself;
-
- place the Remote Control on an internal wall of the house, at a height of about 1.5 m from the floor, in a position suitable for correctly
detecting the room temperature, avoiding installation in niches, behind doors or curtains, near sources of heat, exposed to direct sunlight,
drafts or splashes of water.
The Remote Control connection is protected against false polarity, this means that connections can be swapped.
The Remote Control must not be connected to the 230 V ~ 50 Hz power supply.
For the complete programming of the Remote Control, refer to the instruction booklet contained in the Remote Control kit itself.
Communication between the board and the Remote Control takes place with the boiler in each operating mode: OFF/SUMMER/WINTER;
the boiler display reflects the settings made from the remote, as regards the operating mode.
Through the Remote Control it is possible to read and set a series of parameters, called TSP, reserved for qualified personnel (Table 24
and Table 25).
Setting parameters TSP02 and TSP15 sets the default data table and reloads all original data.
If the value of a single parameter is found to be incorrect, its value is restored from the default data table. If the value you try to set is
outside the limits allowed by the parameter, the new value is rejected and the existing one is kept.
Содержание PLAY 24
Страница 45: ...45 3 6 3 Wiring diagram fig 21...
Страница 52: ......
Страница 53: ......
Страница 55: ...2...
