Steca TR A502 TT - Page 16

16
742.114 | 14.50
EN
32.
Notice
Danger of pump damage if run dry. Only switch the
system to manual or automatic mode when the
system is filled.
Press and hold the mode button (arrow
in Fig. left) for 2 seconds to change the operating
mode; more information on this is provided in Sec-
tion 8.
33. Mount the front panel. The controller is now ready
for operation.
Characteristics of high-efficiency pumps
Display Pump type Characteristic curve
bA
High-efficiency pump with a 0–10 V
profile for a rising characteristic curve
(Fig. 6)
0 V: Pump off
10 V: Max. pump speed
bb
High-efficiency pump with a 0–10 V
profile for a falling characteristic curve
(Fig. 6)
0 V: Max. pump speed
10 V: Pump off
C
Pressure regulated high-efficiency pump –
(no control cable, switching on/off
via the supply voltage)
Tab. 2: Characteristics of high-efficiency pumps
U/V
RPM
U/V
RPM
Fig. 6: Characteristics of high-efficiency pumps with 0–10 V profiles for a rising characteristic curve
(bA, left) and a falling characteristic curve (bb, right)