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9.
Maintenance
To maintain the high degree of efficiency of the unit, it is necessary to service it regularly. Depending on the type
of operation, annual or semi-annual servicing is recommended.
The boiler and firing must be inspected by a qualified specialist in accordance with the official regulations.
Before performing any work on the unit, it must be disconnected from the mains and the fuel supply must be shut
off.
The device contains components made of synthetic silicon mineral fibers (ceramic and glass fibers, insulation
wool). In order to avoid all types of health hazards, suitable clothing and a protective mask must be worn for work
on or with these components.
9.1.
Periodical checks and maintenance operations
Check manometer with circulation pump off. Low water or pressure level indicates that the system must be
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filled up with water.
Check that the expansion chambers function properly
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Check safety valves as well as heating and hot water system blowers
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Carry out burner maintenance according to the recommendations given in the burner manual.
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Check fuel oil level
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Clean boiler and chimney
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9.2.
Boiler cleaning
Boiler should be cleaned by your chimney sweeper and engineer.
The cylindrical type construction of Melbury HE boilers makes cleaning much easier to perform. However, we
recommend that heating surfaces in fuel oil boilers be cleaned with appropriate chemical products. Your
installation contractor, as an engineer, will know how to best advise you.
Turn off burner
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Disconnect burner plug from socket
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Loosen boiler door screws and rotate door together with burner till it stops.
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Remove the turbulators
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Clean the combustion chamber and smoke tubes
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Re-install the cleaned turbulators following the instructions given in chapter 6.5 of these instructions.
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Disassemble the lid on the flue gas collector and clean the flue gas collector
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Disassemble the lid on the recuperator and clean the water tubes (Melbury C)
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Re-install lid and close furnace door
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Start up burner again.
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9.3.
Burner maintenance
The regular maintenance of the burner (body, jet, burner head, igniter, pump filters) must be carried out by a
qualified specialist in accordance with the instructions of the burner.
After the work has been completed, the settings of the burner must be checked to ensure that they meet the
performance requirements of the boiler.
We reserve the right to make changes to dimensions and construction
Melbury HE, C 530 - 3000
31
Hamworthy Heating Limited – Dorset BH17 ONF
edition 12.2020
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