Replacing The Flue Gas Sensor; Checking The Glow Ignitor; Activation - Buderus Logamax plus GB162-80 kW Service Instructions Manual

7 Actions
section 99

Replacing the flue gas sensor

A
DANGER OF FATAL ACCIDENT/FIRE
due to flue gas escaping.
 After carrying out these activities, check the system for
leaks on the flue gas side.
 Switch off the power supply to the heating system, see
section 72.
 Open the boiler door as instructed in section 73.
 Disconnect the plug of the flue gas sensor as instructed in
section 97.
 Remove the cap from the measuring nipple of the combus-
tion air supply as instructed in section 97.
 Remove the flue gas sensor [1].
 Install the new flue gas sensor in reverse order.
 Attach the plug of the new flue gas sensor in reverse order.
 Close the boiler door in reverse order.
 Switch on the power supply to the heating system, see
section 79.
74 Logamax plus GB162-80 kW/100 kW - Subject to modifications resulting from technical improvements!
section 100 Checking the glow ignitor;
activation
H
DANGER OF FATAL ACCIDENT
due to electric shock!
 Switch off the power supply to the heating system, see
section 72.
 Open the boiler door as instructed in section 73.
3
 Disconnect the plug of the glow ignitor [1].
 Set the multimeter to "Measure AC voltage". Minimum mea-
suring range: 120 VAC [2].
 Switch on the power supply to the heating system, see
section 79.
 Put the boiler in flue gas test mode, see section 20.
 Check that approx. 120 VAC is measured on the plug [3]
while the operating code
 Switch off the power supply to the heating system, see
section 72.
 Attach the plug of the glow ignitor in reverse order.
 Close the boiler door in reverse order.
 Switch on the power supply to the heating system, see
section 79.
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