Hamworthy 563216020, Инструкция по установке, наладке и обслуживанию

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HAMWORTHY HEATING LTD
16
CHESIL-ELECTRONIC 500001181/K
9.0 SERVICING SCHEDULE
The following is a recommended servicing schedule for the Chesil unit and expansion vessel. If remedial action is
required, refer to section 10: SERVICING AND REPLACEMENT OF COMPONENTS. If in doubt consult
Hamworthy Heating.
9.1 6 Monthly
1) Check the expansion vessel charge pressure, as described in section 7.4. A significant drop in charge
pressure could be due to a faulty vessel diaphragm; replacement of diaphragm should be considered. See
section 10.9.
2) Check the value for PUMP KICK. Adjust if necessary then briefly reduce the system pressure to check for rotor
seizure. This could occur if the pump is not run for extended periods. This can be accomplished by slightly
opening the expansion vessel drain valve to initiate a leak.
Note! Ensure that the drain valve is closed after this operation.
9.2 12 Monthly
1) Check the ball float valve diaphragm seat for integrity and replace if necessary. Also check the plastic float for
soundness.
2) Check the expansion vessel for signs of external corrosion. If any deterioration is observed then it is
recommended that the frequency of inspection be increased.
3) Check the operation of the safety circuits if utilised.
4) Check the V2 setting and reset if this is close to the maximum limit.
Note: a high reading accumulated over a short period of time could indicate a system leak and should be
investigated.
9.3 4 Yearly
1) Remove the expansion vessel diaphragm as described in section 10.9 and inspect for wear/ageing.
Inspect the internal surface of the vessel for corrosion.
Significant corrosion can lead to failure of the vessel; replacement of the entire vessel should be considered.
If necessary replace the diaphragm as described in section 10.9.