Technical data

Programming
48 POTTERTON COMMERCIAL
120-393 632.4 04.08 Fh
Determination of the heating curve slope
Enter lowest calculated outside temperature according to climate
zone into the diagram (see fig. 12), e.g. vertical line at -10°C. En-
ter maximum flow temperature of the heating circuit (e.g. hori-
zontal line at 60°C).
The intersecting point gives the value for the heating curve slope.
Summer/winter heating
limit
(730, 1030)
The heating will be switched over to summer or winter operation
at the temperature set here, whereby the reduced outside tempe-
rature becomes the reference temperature (prog. no. 8703).
- - - °C: deactive
Room influence
(750, 1050)
In the case of room influence, the deviations from the room tem-
perature setpoint is recorded by a room sensor and taken into ac-
count for the temperature control.
A room sensor must be connected. The value for the room influ-
ence mut be between 1% and 99%. Should there be radiator valves
in the leading room (assembly location of the room sensor), these
have to be fully opened.
Setting for weather compensation with room influence: 1% - 99%
Setting for pure weather compensation: ---%
Setting for pure room compensation: 100%
Boost heating
(770, 1070)
In case of a change from reduced to comfort setpoint, heating is
carried out by boost heating at an increased flow temperature un-
til reaching the comfort setpoint, so that the room is heated up
quickly.
Quick setback
(780, 1080)
If this function is activated the heating pump will be switched off.
When reaching the setpoint, the heating pump will be re-started
and the temperature controlled to the reduced setpoint or the
frost protection setpoint. The duration of the quick setback de-
pends on the outside temperature, time constant building (prog.
Fig. 12: Heating curve diagram.
4
3,5
3 2,75
2,5 2,25
2
1,75
1,5
1,25
1
0,75
0,5
0,25
20 10 0 -10 -20 -30 °C
30
40
50
60
70
30
80
90
100
°
C
Flow temperature
Outside temperature