7 Operation
48 of 68
Hyamat SVP Eco
7.4 Operating modes
7.4.1 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
pressure booster system design.
▪
Standard design:
By making the appropriate settings via the frequency inverter
display, one of the pump sets is operated directly on the power supply network
for 10 seconds, independently of the control unit. After these 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 power supply network, independently
of the control unit.
7.4.2 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 original operating manual of the frequency inverter is on hand.
ü
The accumulator has been filled.
1. Slowly close the discharge-side shut-off valve until only a single pump set is left
running and delivering a small amount of water.
2. Set the energy-saving mode via the frequency inverter in accordance with the
supplied operating manual.
Summary of Contents for Hyamat SVP Eco
Page 1: ...Pressure Booster System Hyamat SVP Eco Installation Operating Manual...
Page 66: ......
Page 67: ......
