Advertisement
English
8.2 Commissioning the system
After all the preparations and checks according to
section 8.1 have been made, the system should be
switched on at the main switch on the control
device and the control should be set to automatic
mode. The pressure control system switches on
the pump until the consumer piping is filled with
water and the set pressure has been built up.
CAUTION! Risk of malfunction or damage!
If the system has not been flushed up to now, it
should be flushed thoroughly at the latest now
(see Section 7.2.2).
8.3 Decommissioning the system
If the system is decommissioned for maintenance,
repair or other measures, proceed as follows:
• Switch off the voltage supply and secure it against
being switched on again by unauthorised persons.
• Close the stop valves upstream and downstream
of the system
• Shut off the diaphragm pressure vessel at the
throughflow fitting and drain it
• Drain the system completely if necessary
40
9 Maintenance
To guarantee maximum operational reliability at
the lowest possible operating costs, we recom-
mend that the system is checked and maintained
regularly (see DIN 14462 standard). It is advisable
to conclude a maintenance contract with a spe-
cialist company or with our central customer serv-
ice. The following checks should be made
regularly:
• Check that the fire extinguishing system is ready
to operate
• Inspection of the mechanical seal of the pump.
The mechanical seals require water for lubrication,
that can leak out of the seal slightly. If this is
noticeable, replace the mechanical seal.
Inspection of the diaphragm pressure vessel
(every 3 months is recommended) to make sure
the correct supply pressure is set (see Section 8.1
and Fig. 4).
CAUTION! Risk of malfunction or damage!
If the supply pressure is incorrect, the function
of the diaphragm pressure vessel is not guaran-
teed, which increases the diaphragm wear and
can cause system faults.
If the system is decommissioned for a long period,
proceed as described in 8.3 and drain the pump by
opening the drainage plug at the pump base. (Also
observe the corresponding section in the supplied
installation and operating instructions for the
pump)
WILO SE 05/2015
Advertisement
