Unical M 3000 S, Инструкции по установке и обслуживанию, Страница: 29 / 36

29
Instruction for the installer
Adjustment of the climatic curve through the
REGOLAFACILE.
In the installations, that foresee, togheter with
the outer sensor, not an ON/OFF room ther-
mostat, but the REGOLAFACILE, the adjust-
ment has to be done exclusively by the re-
mote control.
The graph, (present also in the user’s manual of the REGOLA-
FACILE) shows some types of working curves
referred to a
requested room temperature of 20 °C. It is easily visible that
the curves 0.2- 0.8 are particularly indicated for low tempera-
ture circuits (floor and wall heating), whilst the ones 1 – 3 are
for medium and high temperature (radiators, fancoils, etc…).
If the room temperature adjusted on the REGOLAFACILE is
different than 20°C the curves slide downwards or upwards
od about 2.5 °C for each degree, respectively in minus or in
0,2
0,4
0,6
0,8
1
1,25
1,5
2
20,0
40,0
60,0
80,0
100,0
20 16 12 8 4 0 -4 -8 -12 -16
Outer temperature [°C ]
CURVE 2 OUTER TEMPERATURE = 0°C
WEIGHT OF THE ROOM SENSOR
= 10
Set temperature Temperature detected in the room Calculated flow temperature
20 18 68 + 10 + 10
20 19 68 + 10
20 20 68
plus of the theoretical 20°.
If, for instance, the selected curve is the n. “2” and the outer
temperature is 0° C the theoretical calculated flow temperatu-
re will be of about 68° C. At this point the actual flow tempera-
ture will be of 68°C if the requested flow temperature is 20 °C,
70.5°C if this is 21°C, 73°C if it is 22°C and so on.
To adjust the working curve it is convenient to followwthese
instructions:
- Select the working curve visibly on the graph, on the
base of the C.H. installation characteristics.
- Open the shutter of the REGOLAFACILE
- Push the
up to find the TECHNICAL menu.
- Push OK : the parameter HEATING CURVE is shown.
- Push OK and subsequently insert the coefficient of the
selected cuve, which is on the right of the graph.
- Push OK and close the shutter.
When both, the REGOLAFACILE and the outer sensor are
connected, in the calculation of the flow temperature, the room
A
At
Bt
temperature detected by the REGOLAFACILE has no weight;
then if we set 21°C and in the room we have 22°C the boiler
continues to operate.
To switch OFF the boiler when the room conditions are sati-
sfied it is necessary to act on the parameter
“WEIGHT OF
THE ROOM SENSOR” (TECHNICAL menu) by changing it to
a value different than zero.
The parameter WEIGHT OF THE ROOM SENSOR represents
the number of degrees which will be added by the REGOLA-
FACILE to the theoretical flow temperature, calculated on the
base of the working curve of the outer sensor, detected in the
room.
See the example: