Supply air fan, radiator fan (450 or 500 watts), warm air fan
E9 - supply air fan switch
E100 - warm air fan switch
F18 - radiator fan thermostat
3101 - relay 2nd stage radiator fan, behind the control panel on the left
L16 - supply air fan adjustment lamp
L50 - lamp for lighting the warm air fan switch
N23 - ballast resistance of the supply air fan
N39 - ballast resistance of the radiator fan
N72 - ballast resistance of the warm air fan
S24 - overheating fuse
S42 - radiator fan fuse tape, at relay J101 behind the control panel on the left
T1i - plug connector, 1 pin, behind the control panel on the left
T1p - plug connector, 1 pin, behind the control panel on the left
T2l - plug connector, 2 pins, behind the control panel on the left
V2 - supply air fan
V7 - radiator fan (450 or 500 W)
V47 - warm air fan
30 - ground, next to the relay board
81 - ground, in the harness of the control panel
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