40
742.110 | 14.50
EN
Display Parameters min. max.
Factory
setting
Functionality
T
T
P
ara
SET
Storage tank loading
strategy
dIFF
1)
, AbS
2)
The loading strategy depends
on the storage tank system
used and the usage of the
system.
dIFF: Highest efficiency. The
control target is the tem-
perature difference between
the collector and the storage
tank.
3)
AbS: Useful when the system
requires particular tempera-
tures, e.g. to avoid switching
on the external back-up heat-
ing system.
The control target is the tem-
perature of the collector.
3)
Control target of dif-
ferential temperature
loading (dIFF)
4 F 100 F 16 F
Control target of
absolute temperature
loading (AbS)
32 °F 200 °F 140 °F
P
ara
SET
R1 pump type AC, HE
AC
Notice
Danger of malfunctions in the
controller or damage to the
components.
With a high-efficiency pump,
HE must be set and with a
standard pump AC must be
set!
Set speed control to oFF
when an external relay is con-
nected or speed control is not
wanted.
Pump characteris-
tics (only HE)
bA, bb, C (see p. 14) –
Speed control on, oFF
oFF
Minimum speed
(only AC)
30 % 100 % 50 %
Minimum speed
(only HE + bA)
0 % 100 % 25 %
Minimum speed
(only HE + bb)
0 % 100 % 75 %
Tab. 3: Parameters
1)
dIFF is defined as a fixed value for swimming pools.
2)
The factory setting depends on the system that has been set.
3)
The pump speed is adjusted accordingly to achieve the control target.
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