Boiler house Level controls
2
Quarterly inspection The Health and Safety Executive recommend that boiler controls should be serviced at least at quarterly intervals. Where the regular tests are carried out properly in a well run boiler house with good water treatment, it may be that only an annual inspection of the probes etc. is required. This is a matter, however, for the user to decide in liaison with their insurance company inspector in order to determine a sensible inspection programme to suit the individual boiler plant. We recommend a regular inspection as follows: 1. Inspect the probe plugs for moisture. 2. Unscrew the probes and wipe away any dirt from the probe tips. If any hard scale is present it may be an indication of more serious scale formation elsewhere in the boiler. Investigate water treatment. 3. Remove the actuator cover from the feedwater control valve and inspect the actuator linkages etc. for tightness and correct operation, and inspect wiring. Test the feedwater control valve for correct operation over its full stroke, for gland leakage and for tight shut-off. 4. Inspect the wiring and controllers for damage. 6. Reassemble, refill the boiler and carry out a full functional check.
2.3 13
AI-P693-34 EMM Issue 1
LCS4000 Level Control Systems
Powered by FlippingBook