Technical data

INSTALLATION
6 720 648 547 (2012/06) 27
Fig. 38 Control panel access
8. External Pump (ST2):
▶ Connect NEUTRAL wire to terminal (Nz)
▶Connect LIVE wire to terminal (Lz)
▶ Connect EARTH wire to earth bracket (E)
9. Refit control panel cover:
▶ Refit panel and secure with screws (B).
▶ Bring the control panel to its upper position and secure by sliding the
white plastic clip up.
Fig. 39 Electrical connections
CAUTION: Isolate the mains gas supply before starting
any work and observe all relevant safety precautions.
CAUTION: Short circuit
▶ When connecting the cables ensure that no cable
strands fall into the Heatronic.
6720648547-43.2Wo
C
D
B
1.
2.
3. 4. 5.
L
N
S
N
L
SLR
FSFR NP LP
B
B
4
2
1
A
F
7
8
9
Code Plug
ST10
ST8
ST6
ST2
T2.5A
ST19
NZLZ
D
7.
EXTERNAL
CONTROLS
WIRING CENTRE
L
N
S
ST10
N S N L LS LR
E
EARTH =
LIVE =
L
NEUTRAL =
N
SWITCHED LIVE =
S
6.
E
230V
ST10
N S N L LS LR
L
N
The mains supply to the boiler must be fed through a
fused double pole isolator situated adjacent to the
appliance.
The isolator must have a contact separation of 3 mm
minimum in all poles.
The system pump must be connected to the appliance
control for the pump over-run facility.
6720648547-15.2Wo
L
N
S
N
L
SLR
FSFR NP LP
B
B
4
2
1
A
F
7
8
9
Code Plug
ST10
ST8
ST6
ST2
T2.5A
ST19
NZLZ
C
D
3. 4.
5.
D
8.
EXTERNAL
PUMP
N
Z
L
Z
ST2
E
L
N