7 Operation
39 of 52
Calio S
1157.8117/01-EN
7.3.2 Dynamic control
NOTE
Dynamic Control only works in combination with the Proportional-pressure Control
operating mode.
Q [m
3
/h]
H
[
m
]
1
2
3
4
Fig. 15:
Principle of dynamic control
1 Excess energy input
3 Control curve
2 Dynamic Control
4 Minimum characteristic curve
Function
The dynamic control (2) system detects when the selected control curve (3) is higher
than the minimum characteristic curve
4)
(4). The control system shifts the control
curve downward, and power input is reduced automatically. To ensure sufficient
supply the pump set switches to a higher control curve when the minimum
characteristic curve is reached. The energy input is reduced (1) without any negative
impact on the supply of the building.
The pump set is operated in an optimised way, even if the system characteristic curve
is unknown; the noise at the thermostatic valves is reduced.
Application
▪
If the system characteristic curve is known (e.g. hydraulic balancing):
– Set the setpoint manually. Select a control curve that is minimally above the
characteristic curve. See type series booklet.
– Activating Dynamic Control in addition is recommended. Even if the setpoint
has been set to an optimum, excessive throttling of the thermostatic valves
may occur in certain climatic conditions. Dynamic Control will further
optimise the operating point.
▪
If the system characteristic curve is unknown:
– Use the standard settings and activate Dynamic Control. The pump set
automatically recognises the system characteristic curve via the variable
speed system and optimises the operating point accordingly.
Settings
Table 19:
Activating and disabling Dynamic Control
Step 1: Activating the setting mode
▪
Press and hold the control button (
●
) for 3 seconds
– This will activate the display backlighting.
– The flashing symbol indicates the active operating mode.
Step 2: Selecting Dynamic Control
▪
Press the control button (
●
) for a minimum of 0.5 seconds until
the symbol for Dynamic Control flashes.
4
Characteristic curve at fully open thermostatic valves
Summary of Contents for Calio S
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