IVT Rego 5101 Installation Manual page 13

B Draw in your own curve:
T1(˚C)
80
70
60
50
40
30
20
10
20 15 10 5 0
Fig. 4 Own curve
6 720 645 172 (2010/07) en
-5 -10 -15 -20 -25 -30
T2(˚C)
6 720 641 739-53.1I
4.3.2 Hysteresis
Hysteresis floats between a max value and a min value.
A time factor determines the time it takes to go from
maximum to minimum value.
The values are set in each heat pump. The current
hysteresis is calculated and displayed in each heat pump
as well as E11.T1's actual value and set point value. The
heat pump that has been out of operation the longest
starts first, that which has operated longest stops first.
4.3.3 Heating demand
The heating demand is activated in each heat pump
when E11.T1 falls below the heat curve set point with
current hysteresis. The heating demand is deactivated
when E11.T1 exceeds the set point with current
-35
hysteresis.
Hot water mode and external control are superior
functions.
No heat is produced in summer operation, apart from for
a pool if applicable.
Settings
13