VAL
S
TEAM
ADCA
We reserve the right to change the design and material of this product without notice.
IMI ECRU E 01.18
9.
All ECRU units include manual regulating valves which are installed downstream of the pumps. These valves
may require adjustment to ensure the correct duty point on the H-Q pump characteristic curve is achieved, thus
reducing possible cavitation and noise.
6.2 Periodical checking:
•
24 hours after the start up, it is recommended to check pipe connections for leaks and retighten the connections if
necessary.
•
Re-check operation of the pumps.
7. SHUTDOWN
If the equipment will be shut down for a long period of time, care should be taken to avoid exposure to low critical
temperatures. It should also be isolated from dust accumulation.
7.1 Shut down procedure
•
Press both pump
’s ‘Stop’ buttons, the ‘Start’ illuminated buttons LED indicators should turn off. Turn off the
electrical power supply and ensure the incoming isolator switch
is set to the ‘Off’ position. If the unit is being taken
out of service disconnect power cables from the control panel. Ensure that the cables are not live. This procedure
must be performed by qualified and experienced personnel, and must comply with the current regional electric
regulations and standards.
•
Close-up the isolation valves to prevent incoming and outgoing hot water to enter the unit and allow the water
inside to cool down.
•
Allow the fluids to cool down to a safe temperature bellow 25 ºC.
•
Drain down all water accumulated inside the receiver to a safe drain point, by opening the drain outlet on the
bottom of the receiver.
•
Drain down all water inside the pump’s casings through the drain port possibly located on its bottom. Consult the
pump manufacturer’s operation manual for further details on this procedure.
•
If the system will be shut off during a large period of time it is recommended to completely drain all the condensate
and water from the system.
8. MAINTENANCE
-
Before executing any maintenance,
work read the ‘Safety notes’ in section 1.
-
For maintenance of individual components of the ECRU please see the relevant product IMI.
-
We recommend the package to be serviced as necessary. The packaged components should be checked
periodically (at least yearly), to verify if they are operating correctly and to verify the wear of internal parts (where
applicable).
-
Before starting maintenance be sure that the equipment is not pressurized or hot. Even if upstream and
downstream isolating valves have been closed care should be taken since fluid under pressure may be trapped
between them.
-
Strainers should be cleaned.
-
When reassembling, make sure all gasket faces are clean and always use a new gasket. Tighten cover bolts
uniformly in a diagonal sequence.
-
Pour quality water or corrosive fluids will compromise the lifetime of the equipment’s and can lead to premature
failure. We recommend the wall thickness examination using appropriate inspection devices ate least yearly
depending on the corrosion conditions or according to regional regulations.
-
To avoid any dust deposits the external surfaces of the package equipment’s must be regularly cleaned.
