Riello KV/200 20 ISC Solar Installation And Maintenance Manual page 42

Example: if the calculated value is 1.3, it lies between the 1 and 1.5 curves. Choose the nearest curve, in this case 1.5.
Adjust the trimmer under the DHW temperature setting knob to select KT.
The following KT values can be set:
standard system: 1,0 - 1,5 - 2,0 - 2,5 - 3,0
under-floor system 0,2 - 0,4 - 0,6 - 0,8.
TYPE OF HEAT REQUEST
Heat request from a ROOM THERMOSTAT
Requests for heat are generated by the room thermostat contacts closing, and terminated by the contacts opening. The
boiler calculates the necessary CH flow temperature automatically, though the user can adjust the boiler settings. The
CENTRAL HEATING temperature selector, however, does not give the user control over the CENTRAL HEATING SET
POINT as such, but only permits variation within a range between +5 and -5°C. Changing this value does not directly
change the temperature of the CH flow. Instead, it changes the reference temperature (0=20°C) and modifies the calcula-
tion that determines flow temperature automatically.
Heat request from a REMOTE CONTROL (REC 08 type)
In the case of heat requests from a remote control, temperature is controlled by the remote control itself (see the instruc-
tions provided with the remote control).
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TECHNICAL ASSISTANCE SERVICE
TEMPERATURE CONTROL CURVE
100
90
T80
80
70
60
50 T45
40
30
20
20 15
T80 maximum set point temperature for standard systems (pos.1 jumper not fitted)
T45 maximum set point temperature for under-floor systems (pos.1 jumper not fitted)
HEATING CURVE CORRECTION
90
80
70
60
50
40
30
+5°C
20
0°C
10
30 25 20 15
3,0 2,5
10 5 0 -5 -10
Outdoor temperature (°C)
-5°C
10 5 0 -5 -10 -15 -20
Outdoor temperature (°C)
2,0
1,5
1,0
0,8
0,6
0,4
0,2
-15 -20