Installers and service technicians
Electrical Connection
Page 50
B0190806
s
7
7.2
Connection instructions
Working on electrical components.
Serious injuries from electric shocks!
Work on electrical components should only be carried out by authorised
technicians!
7.2.1
Mains connection
L, N, PE
power supply for the whole control, cable width 2.5 mm²
L, L1, N, PE power supply for the pellet module
(L1 = via safety temperature limiter controlled cable L)
Caution: Do not connect phase (L) of the power supply to terminal
L1!
Pellet module connection:
Pelletsmodul
Lambdatronic 3100
L-STB
L1
PE
PE
N
N
L
L
7.2.2
Heating circuit pumps for floor or wall heating
In addition to the temperature limit by the control, the following is
required for safety reasons:
A
flow contact thermostat
must also be connected upstream of the
respective heating circuit pump.
Feed cable
L1
PE
N
L
Lambdatronic
P 3100
Cable to pellet module