KSB Calio S, Инструкция по установке и эксплуатации

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7 Operation
34 of 52
Calio S
1157.8117/01-EN
7.2.3 Proportional-pressure control
Application
▪ Heating systems with radiators
The higher the flow rate, the higher the system’s resistance. This is corrected by the
pump set automatically increasing the head setpoint.
When setting the setpoint, ensure that the selected control curve is suitable for the
system characteristic curve:
▪
If the system characteristic curve is known (e.g. hydraulic balancing), select a
control curve that is minimally above the characteristic curve. See type series
booklet.
– Control curve too low: undersupply
– Control curve too high: increased energy input
▪ If the system characteristic curve is unknown, dynamic control is recommended.
(
ð Section 7.3.2, Page 39)
– The pump set automatically recognises the system characteristic curve via the
variable speed system and optimises the operating point accordingly.
Function
Within the permissible flow rate range, the Proportional-pressure Control decreases
or increases the discharge head setpoint between
1 /
2
H
S
and H
S
(factory setting).
Q
H
S
H
min
H
max
1 /
2
H
S
H
Fig. 11: Proportional-pressure Control function
Setting
Table 15: Selecting Proportional-pressure Control and the setpoint
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 the Proportional-pressure Control operating mode
▪
Press the control button (
●
) for a minimum of 0.5 seconds until
the symbol for Proportional-pressure Control flashes.
Step 3: Changing the setpoint
▪ Increase or decrease the setpoint by pressing the control
buttons (+) or (-) respectively.
- Step 4: Confirming the current setpoint
▪ Press and hold the control button ( ● ) for a minimum of 3
seconds.
– The set setpoint flashes and is saved.