Ecotec A4 Operation And Maintenance page 19

*) M:x = Multiconductor for burner
T:x = Thermostat cable for max. thermostat S:x = Operating temperature
Burner
Black
Black
Red +
Black -
Red +
Black -
Brown
Brown
Red
Red
Blue
Blue
White
White
Orange
Orange
Green/yellow
19
Burner fan
Level sen.trans
Level sen.rec.
Optical sensor
Internal motor
Thermo gauge
Ignition element
Limit position