BRULA NEO service instructions
Dated 03/18
Page
42 of
52
14
Repairs
14.1. Replacing the motor
Remove the throttle valve from the combustion air system. Disconnect the
motor cable from the plug connection. When installing a new throttle valve,
ensure the same alignment. Nothing has to be set or adjusted on the actual
motor.
14.2. Replacing the flue gas sensor
The flue gas temperature sensor is fitted with a squeeze-type threaded joint
with a M10 process thread.
Cut off the old flue gas sensor and then unscrew out of the flue gas pipe. Screw
in and tighten the new sensor.
Installation at any other site is not permitted, since this could otherwise
have a negative effect on measurement of the flue gas temperature and
thus have adverse effects on the functioning of the combustion control.
CAUTION: If the flue gas sensor is supplied with washers, these must be
fitted before it is screwed into place. Failing this, the thread will not grip
and the sensor will not be sealed properly.
The sensor cable is routed to the control system where it is connected to the
corresponding connection terminal. Pay attention to white / green polarity!
Note: The flue gas sensor can be bent once by up to 100 degrees of angle
if it collides with walls or similar parts. Only bend this rigid sensor cable
by hand, i.e. do not use tools.
