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Building Technologies
1.4
Installation notes
∂ Always run the high voltage ignition cables separate from the unit and other cables
while observing the greatest possible distance
∂ Do not mix up live and neutral conductors
∂ Install switches, fuses and earthing, in compliance with local regulations
∂ Make certain that the maximum permissible current rating of the connection terminals
will not be exceeded
∂ Do not feed external mains voltage to the control outputs of the unit. When testing the
devices controlled by the burner control (fuel valves, etc.), the burner control must not
be connected
∂ To prevent mixup of different types of burner controls, the LMO39... must always be
used in connection with grey plug-in bases AGK11.6. Make absolutely certain that
the live conductor for the control thermostat or pressurestat is tapped after the
pressure switch and the safety limit thermostat to be connected to terminal 7 (see
Connection diagram)
∂ For safety reasons, feed the neutral conductor to terminal 2. Connect the burner
components (fan, ignition transformer and fuel valves) to the neutral distributor as
shown below in the figure. The connection between neutral conductor and terminal 2
is prewired in the base
Example
6
Z
M
N
7154a01/11
Figure 1: Correct wiring of neutral conductors!
Basic Documentation LMO39...
1 Safety notes
Legend
V...
Fuel valve
M
Fan motor
Z
Ignition transformer
7/61
CC1P7154en
15.03.2018
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