ICI Caldaie ECOVAPOR Series, Инструкция по установке, использованию и техническому обслуживанию

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Maintenance
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GAS LEAK MONITORING AND AIR FILTER CLEANING (STANDARD)
In addition, it is strongly recommended to carry out periodical tests to check any gas leak and air filter cleanliness.
Monitoring Modes Max. frequency
Gas leak detection 12 months
Air filter cleaning Check of the load loss extent at the filter 12 months
LIFECYCLE OF MAIN COMPONENTS
The lifetime of system components is shown in the table below.
These devices must be replaced once their useful lifetime expires:
COMPONENTS LIFETIME (years)
Level switch 8
Pressure switch 10
Safety modules 20
Combustion control unit 10
Gas valve 10
Gas pressure switch 20
Air pressure switch 20
a
ATTENTION
The electronic level relays present inside the control panel must be replaced after 8 years of operation since their
useful lifetime has expired.
METHODS FOR CHECKING THE SAFETY DEVICES
CHECKING OF THE MINIMUM LEVEL SAFETY LEVEL SWITCHES
Position yourself in front of the control panel, leave the steam outlet valve open with standard withdrawal, turn off the pump by
setting switch to "0", wait for the natural lowering of the generator water level. To accelerate this operation, operate on the sludge
drain valve.
m
IMPORTANT
The two safety devices must trigger when the water level reaches the “minimum” mark indicated on the side of the
glass indicators. Should this not be the case, check the whole level switch, which consists of:
–
electronic level regulator; check it is intact and, if not, proceed with replacement
–
connection cable between control panel and probe; possible interruption and/or short circuit
–
level probe; check for possible breakage of the ceramic part and consequent loss of electrical insulation
–
level dipstick; possible scale build-ups preventing the probe-water current passage or possible dipstick detachment.
If check outcome is positive, set pump control to “AUT”.
CHECK THE MAXIMUM LEVEL SWITCH (IF ANY)
Set the pump switch on the control panel to MAN and wait for the water level to increase inside the generator.
Check that the pump stops when the maximum point visible in the glass indicator has been reached.
CHECK OF THE SAFETY PRESSURE SWITCH
The safety pressure switch must be calibrated at a pressure lower than that of the safety valve.
To check the correct activation of the safety pressure switch, increase the calibration of the regulation pressure switch(es) and
check burner turning off and shut-off alarm activation from the control panel (visually follow the indication provided by the
manometer).