ECOLAB EcoAdd Betriebsanleitung Seite 247

7.2 Installation
7.2.1 Hydraulic installation
Personnel:
Protective equipment:
2
3
D
1
P
S
4
Using a multi-function valve (MFV):
Pressure control valve and pressure relief valves (items 1 and 2) can be
replaced by a multifunction valve (MFV) (pos. 3). When using this, it is
essential to observe the corresponding instructions
When using a metering valve, metering spikes < 1.2 mPa (12 bar) may occur.
This means that the pump displays an error and stops.
Troubleshooting:
1.
Check back-pressure!
2.
Check all valves on the metering lines; it may be that a valve fitted in the metering
line is not opening correctly or may even be closed.
3.
Check system pressure and reduce if necessary.
n Mechanic
n Service personnel
n Specialist
n Chemical-resistant protective gloves
n Protective eyewear
n Safety shoes
Installation diagram
1 Overflow valve
2 Pressure control valve
3 Optional: Multifunction valve (MFV)
4 Suction lance or bottom admission valve
D Pressure valve
P Pump head
S Suction valve
43
Assembly and connection
.
MAN046939 Rev. 6-10.2021