Tuttnauer 6671130, Руководство по эксплуатации и техническому обслуживанию

Страница: 97 / 143

MAN205-0195042EN Rev. A Aug. 2011
Page 91 of 137 pages
Symptom
Possible cause Corrections
3. Steam pressure
does not
increase or
increases too
slowly.
3.1 The pressure switch is faulty
or incorrectly set.
3.2 The circuit breakers in the
heater circuits are switched
OFF.
3.3 The water level control system
is defective.
3.4 The heater contactor is
defective.
3.5 Heaters are burned out.
3.6 There is a leakage in the
safety relief valve caused by
loose or defective fittings, or
by blockage.
3.1 Check the pressure
switch, set it correctly or
replace if faulty.
3.2 Check the cause and
switch ON the circuit
breakers.
3.3 Check and replace the
defective electrode or
GICAR controller.
3.4 Check and replace the
heater contactor.
3.5 Replace the damaged
heaters; check if the
water level is sufficient.
3.6 Tighten or replace piping
connections, fix or
replace the safety valve.
4. Steam pressure
goes up beyond
the set control
point.
4.1 The pressure switch is faulty
or set incorrectly.
4.2 The heater contactor is stuck.
4.1 Set the pressure switch
correctly or replace if
faulty.
4.2 Replace the heater
contactor.
5. The safety valve
blows.
5.1 The steam pressure is higher
than the working pressure.
5.2 The safety valve is defective.
5.1 Check cause and
remedy it, See section 4
above)
5.2 Check and replace the
safety valve.