34
Main board 524
X7 Fault output
X4 Suction
turbine
X5 Ignition
X38 Bus
connection
to internal
extension
X37
Connection
to actuator
X11
Power supply
for internal
extension
X1
Power supply
X26 Burner feeder relay
X23 0...10V
X25 Secondary air mass
X24 Primary air mass
X15 Flue gas temperature
X18 Upper buffer temperature
X14 Boiler temperature 2/
lower
X17 Lower buffer temperature
X13 Boiler temperature
X16 Outdoor temperature
X21 Lambda sensor
X27 Burner feeder
overtemperature
X36 Suction fan RPM
X28 Grate limit switch
X32 Shutter sensor
X12 STL
X9 Burner feeder
worm
X8 Suction fan
PZ65/100: Primary fan
X6 Return/
buffer pump
X3 Grate drive
X2 Heat exchanger
cleaning
X30 External contact
X35 Pellet storage –
Full level sensor
Summary of Contents for Top Light Zero 18
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