22
If using the flue gas header for two-boiler
systems (accessories):
Installation instructions for flue gas header in a
two-boiler system
!
Please note
Hot components can damage electrical cables.
Never route cables near hot components.
Secure all cables/leads with cable ties.
1.
Route the burner cables to the burner. Use strain
relief or cable ties if necessary.
2.
Plug burner cable
fA
and burner modulation cable
lÖ
into the burner control unit.
3.
Plug control unit connecting cable
f-\YBH
, flue gas
temperature sensor lead
aG
A/
aG
B and power cable
fÖ
on the burner side into the connectors on the
mounting plate.
4.
Plug control unit connecting cable
f-\YBH
and
burner modulation cable
lÖ
into the control unit.
Note
For routing the connecting cables, see page 23.
Note
Route 230 V cables and LV leads separately.
System power supply
!
Please note
The system is connected to the power supply by
means of the cable with plug
fÖ
. Contrary to the
information in the control unit installation instruc-
tions, the control unit is actually supplied with
power via connecting cable
f-\YBH
.
a--]
A
fA
M
230
a-Ö
L
N
fÖ
C
A
B
fA
gD aCA aG §
N L
fÖ
N L
aBH
D
/
16A
fÖ
aBH
E
fÖ
L
N
230 V~
L2N L1
lÖ
lÖ
Fig. 19
A
Burner control unit
B
Boiler control unit
C
Mounting plate with mains filter
D
Power supply (cable with plug
fÖ
)
E
Connecting cable
f-\YBH
Connect power cable with plug
fÖ
to the power supply.
For further details regarding the power supply:
Control unit installation instructions
Burner electrical connection
(cont.)
5833527
