12
®
6.6 The igniter supply should have effective grounding. Correct connection of the grounding of the igniter
should be checked first, then the line can be connected.
6.7 Do not open the ATEX Exd enclosures in a hazardous area without a
permit for Zone de-classification.
6.8 Do not touch, lift, carry the igniter rod or power pack when the igniter is energized or is not disconnected
from a potential source of electrical power.
6.9 Once assembled, the igniter can undergo the functional test. The rod should be positioned clear of
equipment, flammable materials and personnel. If these conditions are met, power can be applied.
6.10 Do not open the power pack enclosure, disconnect rod tip, HV cable and grounding cables when the
equipment is energized or is not disconnected from potential source of electrical power supply.
6.11 Never use water to wash igniter
components when it is connected to source of electrical power.
IGNITER START-UP AND OPERATION:
6.12 Igniter must always be used in accordance with its intended purpose and following approved installation
documentation, operation algorithms and procedures as well as service manuals.
6.13
The ignition transformer is designed for continuous use, however the type of applications for which
he is intended to be used is intermittent operation. Following applicable standards, typical Trial for
Ignition operating time is 5 - 10 seconds, repeatable in short periods. Operating time in such cases
should not exceed time of few minutes.
In order to protect the device from unintentional and unnecessary continuous operation, adequate
time delay protection must be provided in the control system.
6.14 During the burner start-up the main voltage 110/230VAC can be applied to the power pack, provided
that correct igniter installation has been executed, the wiring and correct grounding have been verified, as
well as the correct assembly of the igniter has been inspected (according the burner documentation). When
main voltage is applied the "POWER ON" red LED should light on power pack doors. In GUB4
enclosure, on MBCE module the "SYSTEM" diode is visible through the cover window. If not, please
refer to p. 8 TROUBLESHOOTING.
6.15 After applying the 24VDC control voltage to the power pack, for ignition triggering, the electric arc
should be visible on the rod tip and the "IGNITION" green LED should light up (on safe area power
pack doors). Check the presence and repeatability of electrical arc on the rod tip.
6.16 No other sparking should be visible on rod connections, grounding points and cable glands.
Should that be the case, de-energize igniter immediately and follow the p. 8 instructions.
6.17 In the case of no arc present during energizing please refer to p. 8.
6.18 If, after correct assembly, arc is strong and stable a full pilot/burner test with fuel can be performed.
If the spark is present but the igniter does not light the fuel, check gas settings and the presence of gas at
the nozzle. If the fuel settings are within the recommended range and during the Trial for Ignition the fuel
is present at the nozzle the rod position should be adjusted to ensure that the electric arc is in the correct
location. After moving the rod in new position the test of ignition should be repeated.
6.19 If the flame is present, rod tip is in proper position, but there is no flame confirmation at MBCE module
refer to p. 8.
6.20 It is recommended to ignite the burner at a low gas flow and with a limited quantity of combustion air.
It is further recommended to use shut-off valves with a slow opening and fast closing capability.
6.21 In the case of use on gas pilot, without protected pilot primary combustion zone, a retractor is required
to pull the igniter back from the flame zone and its tip is completely hidden into the guide pipe (stroke
min. 300 mm).
WARNING
:
DO NOT PERFORM ANY MODIFICATIONS TO THIS EQUIPMENT
AND NEVER USE UNAUTHORIZED SPARE PARTS AS THIS WOULD RESULT
IN A BREACH OF THE ATEX CERTIFICATES CONDITIONS AND COULD
PROVE HAZARDOUS TO YOUR HEALTH AND LIFE !
