Maintenance
37
PERIODIC VERIFICATIONS
The frequency of verifications is shown in the table.
It MUST be strictly observed
.
Observation and
tests
1 day
1 week
1 month
3 months
6 months
12 months
Safety valves
O
O
T(1)
Shut-off valves
O
O
T(4)
Protection devices,
High Pressure
O
T(2)
T(5)
T(12)
Protection devices,
High Temperature
O
O
T(5)
T(12)
Pressurised parts
(pipes, inspection
hatches, flanges,
gaskets)
O
O
Temperature,
pressure control
devices
O
O
T(7)
Loading system,
pumps/valves (if
any)
O
O
T(8)
Analysis of the water
quality
T(6)
T(9)
Burner control
(combustion)
O
O
T(10)
Safety systems
O
O
T(11)
O
Observe the proper operation of the generator in all its parts.
There must be no leakage from the safety valves.
There must be no leakage from the shut-off valves, piping, flanges, joints, pressurised parts in general.
Visually check, through the glass indicators, the correct water level. Check pump(s), modulating valve (if installed).
Verify the correct display and adjustment of temperatures/pressures.
Check for alarms from the protection devices.
Verify the proper operation of the burner.
T(1) Verification of safety valves by applying a sample pressure gauge to the generator, as reference of the exact intervention
pressure
Verifications must be performed by qualified personnel.
T(3) Manually check, through the switches present on panel front side, that valves (if any) are open
T(4) Check correct seal, grease, lubricate where necessary
T(5) Physically check the triggering of safety devices
T(6) Analyse water quality by taking a sample from the feed system; check whether it complies with EN12953-10 specifications
T(7) Check the correct indications of the instrumentation with sample thermometers/pressure gauges
Verifications must be performed by qualified personnel
T(9) Analyse the boiler water
T(10) Check the burner, combustion control, safety devices
Verifications must be performed by qualified personnel.
T(11) Check the proper operation of all safety, electric and electronic circuits.Verifications must be performed by qualified
personnel.
T(12) Bench check of the safety devices.
Verifications must be performed by qualified personnel.
T(13) Check and new calibration of the analysis system.
Verifications must be performed by qualified personnel.
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz
