Maintenance
58
Observation and tests
1 day
1 month
3 months
6 months
12 months
Temperature, pressure control devices
O
T(11)
Load system, pumps/valves
O
T(6)
Analysis of the water quality
T(3)
Burner control (combustion)
O
T(12)
Water quality automatic protection device (if any)
T(14)
Burner check (filter, gas valve, air pressure switch, fan,
cone, electrodes, combustion head and control unit,
phase sequence check)
O
T(12)
Version 72 h operation without continuous supervision
Observation and tests
1 day
1 month
3 months
6 months
12 months
Safety valves
O
T(7)
Level indicators
T(1)
“TDS-BWD” drain devices (If present)
T(2)
Shut-off valves
O
T(8)
Water load control devices
O
Low level protection devices
High level protection devices
O
T(4)
T(13)
Temperature and pressure indicators
O
High pressure protection devices
O
T(4)
T(13)
Protection devices, water delivery quality (if present)
O
T (5)
T (9)
Safety systems
O
T (10)
Pressurised parts, piping, flanges, joints
O
Temperature, pressure control devices
O
T(11)
Load system, pumps/valves
O
T(6)
Analysis of the water quality
T (3)
Burner control (combustion)
O
T(12)
Water quality automatic protection device (if any)
T(14)
Burner check (filter, gas valve, air pressure switch, fan,
cone, electrodes, combustion head and control unit,
phase sequence check)
O
T(12)
0
Observe generator correct operation in all its parts.
There shall be no leaks from the safety valves.
There shall be no leaks from the shut-off valves, pipes, flanges, joints, and pressurised parts in general.
Visually check, through the glass indicators, water correct level. Check pump(s), modulating valve (if present).
Check the correct displaying and adjustment of temperature/pressure values.
Check for the presence of alarms originated by the protection devices.
Check burner correct operation.
T(1) Purge the level indicators
T(2) Manually check, through the switches present on panel front side, that valves (if any) are open.
T(3) Perform generator water analysis (refer to the specific paragraph).
T(4) “Physically” check the triggering of devices (refer to the specific paragraph).
T(5) Analyse water quality by taking a sample from the feed system; check whether it complies with EN12953-10 specifications
(refer to paragraph "water quality" of the generator manual)
T(6) Thoroughly check the feed system, matching of the level on the glass indicators with the parameters entered in the check
device, controller (if any).
T(7) Check safety valves by applying a master manometer to the generator, as a reference of the exact activation pressure.
Checks must be carried out by qualified personnel
.
T(8) Check correct sealing; grease, lubricate where necessary.
T(9) Check and new calibration of the analysis system.
Checks must be carried out by qualified personnel
.
T(10) Check the correct operation of all safety, electric and electronic devices.
Checks must be carried out by qualified personnel
.
T(11) Check, using master thermometers/manometers, the correct indications provided by the instruments.
Checks must be
carried out by qualified personnel
.
T(12) Burner check, combustion check, safety device check.
Checks must be carried out by qualified personnel
.
T(13) Bench testing of safety devices.
Checks must be carried out by qualified personnel
.
T(14) Check and new calibration of the analysis system.
