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7. PERIODICAL MAINTENANCE AND REPAIRS
The equipment manufacturer recommends a thorough inspection of the igniter every six months if possible to
ensure long life and reliability.
CAUTION, DANGER HIGH VOLTAGE !
BEFORE ANY WORK ON IGNITER IS UNDERTAKEN, DISCONNECT THE
POWER PACK POWER SUPPLY. ONLY THEN THE POWER PACK ENCLOSURE
MAY BE OPENED OR CABLE AND ROD DISCONNECTED.
STRICTLY FOLLOW THE RULES OF ELECTRICAL EQUIPMENT SERVICE IN
SAFE AND HAZARDOUS AREAS!
INSPECTION OF THE IGNITER'S ROD:
7.1 Disconnect the power source and then disconnect the HV cable and disassemble the igniter's rod from the
igniter/burner following the above safety rules. Unscrew the rod's tip.
7.2 Check the condition of the rod tip, central electrode, the ceramic insulator and tip thread joint. The parts
must be clean, not burnt, ceramic not broken and should not bear any traces of high temperature influence,
erosion or mechanical damage. If the rod's tip is damaged, it must be replaced. Clean the tip and remove all
traces of erosion and overheating.
7.3 In case of rod type
HTSS-xxx-J
and type
HTSS-xxx-J-CEX
– open the junction box cover and check the
condition of the cables and terminals. The inside of box and cables must be clean and should not bear any
traces of mechanical or thermal damages. In case of water ingress traces check the condition of box gasket
and tightness of glands. Replace damaged components. Clean if necessary.
Check the rod surface for mechanical damages. The rod cannot be bent or squashed. The outer pipe must
not be burned or cracked. In case of considerable damages, it must be replaced.
7.4 In the case of the rod type
HTSS-xxx-CEX
- unscrew the gland on
the end of the rod and check the condition
of the gland, cable and sealant inside
only in case if there is evidence of possible damage, overheating,
short circuit inside
. The parts must be clean, not cracked and should not bear any traces of mechanical
or thermal damages.
Check the rod surface like above.
In case of considerable damages, it must be replaced
7.5 In the event of any damage that may affect the safety and the rod performance - replace or return the
part to the manufacturer for repair.
7.6 Removal of the igniter rod and disconnection of the tip may only be done wearing protective gloves due to
the presence of hot surfaces.
NOTICE
:
DURING THE INSPECTION HANDLE THE IGNITER WITH CARE. DO
NOT THROW OR BEND THE ROD. PROTECT FROM HITS, OTHER MECHANICAL
DAMAGES, MOISTURE AND DIRT.
INSPECTION OF THE POWER PACK:
7.7 Disconnect the power source and disconnect the HV cable.
7.8 Open the door of the power pack box or unscrew the Exd power pack enclosure cover and check the
condition of connections on the power pack board terminals as well as the condition of glands.
Check electrical components on the board - HV transformer, MBCE module, flame relay and other
components for loose cable connections, excessive wear, burn marks and water ingress traces. In the case of
burn marks test the power pack or components, in case of water traces check the power pack tightness.
Replace components or whole power pack if necessary.
INSPECTION OF THE HV CABLE:
7.9 Check the cable for nicks or kinks. Make sure the cable entry glands are not loose. In case of damages
replace the cable set or complete rod with cable.