Sime 8103047, User, Installation And Servicing Instructions

Page: 65 / 96

65
EN
Variable differential pressure Δp-v (I, II, III)
II
III
I
Q/m
3
/h
H/m
Recommended in case of heating sys-
tems with double delivery and radiators,
for the reduction of flow noises on the
thermostatic valves. The pump halves
the head in case of a reduction of the
flow rate in the piping network. Elec-
tricity can be saved since the head is ad-
justed on the basis of the required flow
rate and the lower flow speeds.
Three pre-defined characteristic curves
(I, II, III) from which to choose.
Constant differential pressure Δp-c (I, II, III)
III
I
II
Q/m
3
/h
H/m
Recommended with radiant panels or
large-size pipes and for all applications
that lack variable characteristic curves
for the system (such as, for example,
calorifier charge pumps) and single-de-
livery heating systems with radiators.
The adjustment preserves the set head
regardless of the conveyed flow rate.
Three pre-defined characteristic curves
(I, II, III) from which to choose.
5.13 Additional functions of the pump’s com-
mand button
1 2
3 4
Fig. 24
5.13.1 Bleeding the pump
The pump bleed function can be activated by pressing the com-
mand button (4) for at least 3 seconds; the pump will bleed au-
tomatically.
This function is used to bleed the pump ONLY and not the heat-
ing system.
5.13.2 Manual restart
The manual restart can be activated by pressing for at least 5
seconds the command button (4), which unlocks the pump after
extended periods of inactivity (e.g. after a summer shutdown) or
following a pump lock-out.
5.13.3 Locking/unlocking the button
The keypad lock is activated by pressing the command button (4)
for 8 seconds and it blocks the pump settings. The keypad lock
protects the pump against involuntary/unauthorised changes to
the pump.
5.13.4 Activating factory settings
The factory setting can be activated by pressing and holding the
command button (4) until the LED (1) switches off. After restart-
ing the pump, the latter will operate with the factory setting (its
condition on delivery).
5.13.5 Manual restart
When a block is detected, the pump attempts to restart auto-
matically.
If the pump does not restart automatically:
– press the command button (4) for 5 seconds then release it
– the restart function activates for a maximum of 10 minutes
– LEDs (2) and (3) will flash one after the other clockwise.
After the restart, LEDs (2) and (3) will indicate the settings be-
fore the lock-out.
m
CAUTION
To interrupt the pump’s operation, press the com-
mand button (4) for 5 seconds.
a
WARNING
If the fault persists, please contact the Technical As-
sistance Centre.
The flow-residual head curve available for the heating system is
shown in the graph below.
RESIDUAL HEAD (mbar)
0
0 800 1000 1200 1400 1600 600 400 200
100
200
300
400
500
600
700
FLOW (l/h)
Fig. 25
d
IT IS FORBIDDEN
to operate the pumps without water.