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12 Maintenance 1 2 7 746 800 040-128.2TD Fig. 85 Checking the ionization electrode 6720645916-85.1N 2 Fig. 84 Removing the burner plate and the burner seal 3 12.3.4 Checking ignition unit DANGER: B Close the gas valve prior to working on components in contact with gas. B Check for gas tightness after carrying out work on components in contact with gas. NOTICE The glow ignitor is fragile. B Handle with care. NOTICE If the seat of the cover plate leaks, the seal can burn away. B Check the cover plate for tightness. • Check the individual components of the ignition unit (fig. 86) for wear or contamination (fig. 85). • If required, replace the ionization electrode and/or glow ignitor. 4 5 1 5 6720615405-035.1TD Fig. 86 Replacing the ignition unit 1 2 3 4 5 glow ignitor Ionization electrode Rubber seal Cover plate with seal Nut 12.3.5 Disconnect the condensate trap • Disconnect the condensate trap hose (fig. 87, [3]) and the rubber sleeve (fig. 87, [2]) from the condensate trap (fig. 87, [1]). • Turn the condensate trap a quarter rotation counterclockwise (fig. 87). After checking or replacing the ionization electrode and/or the glow ignitor fit a new cover plate and rubber seal. Logamax plus GB162- L.B. 80/100 kW - Subject to modifications resulting from technical improvements! 55
