KSB Delta Primo F, Инструкция по установке и эксплуатации

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7 Operation
36 of 80
KSB Delta Primo
1983.811/02-EN
7.8 Operating modes
7.8.1 Manual mode
Manual mode is reserved for emergencies. Continuous manual operation would lead
to waste of energy and water and cause the fluid handled and/or the pump set to
overheat. The pump sets can be switched to manual mode depending on the design
of the pressure booster system.
▪ Standard design: By making the appropriate settings at the display, one of the
pump sets is operated directly on mains power for 10 seconds, independently of
the control unit. After the 10 seconds the pump set is stopped automatically.
▪ Design with supplementary equipment: By selecting the appropriate setting via
the manual-0-automatic selector switch, available as supplementary equipment,
every pump set is operated directly on the mains, independently of the control
unit.
7.8.2 Energy-saving mode
CAUTION
Hunting (excessive starting/stopping) of pressure booster system
Damage to the pumps!
▷ Only activate the energy-saving mode if a sufficiently sized accumulator is fitted
on the discharge side.
NOTE
No recommendation can be given for the parameters of the energy-saving mode.
The values depend on the system installed and can only be defined at the
operational pressure booster system installed on site.
In conjunction with a very large discharge-side accumulator, the energy-saving mode
ensures that the pressure booster system runs at an energy-efficient operating point
when required to supply very small amounts of water. If a very small amount of
water is consumed, the pressure booster system fills the downstream accumulator
and stops. Any small water volumes required can then be supplied from the
accumulator.
ü
The accumulator has been filled. (
ð
Section 7.9.1, Page 37)
ü Logged in at Service level.
1. Close the discharge-side shut-off valve slowly until only a single pump set is left
running and delivering a small amount of water.
2. Read and record the pump load in parameter 1-1-2.
3. Activate parameter 3-5-4 (charging accumulator).
4. Set parameter 3-11-1 (energy-saving mode) to ON.
5. Set parameter 3-11-2 (direct OFF) to ON.
The setting OFF (flow detection) should only be selected for difficult site
conditions and by an expert. ( ð Section 7.9.2, Page 37)
6. Enter the pump load value in parameter 3-11-3 (stop speed %).
7. Set parameter 3-11-4 (time Direct OFF) to define the time period the pump is to
keep on running in order to charge the accumulator before stopping.
8. Adjust parameters 3-11-3 and 3-11-4 until the required stopping behaviour is
obtained.