19
Danger
Incorrect wiring can lead to serious injury from
electrical current and result in appliance dam-
age.
Take the following measures to prevent wires
drifting into the adjacent voltage area:
■
Route LV leads < 42 V and
>
42 V/230 V~
cables separately.
■
Only strip the minimum of insulation from
cables as close as possible to the terminals
and bundle tightly to the corresponding termi-
nals.
■
Secure cables with cable ties.
When connecting external switching contacts and on-
site components, observe the insulation requirements
of IEC/EN 60335-1.
!
Please note
Electronic assemblies can be damaged by elec-
trostatic loads.
Before beginning work, touch an earthed object
such as a heating or water pipe to discharge any
static.
C
D
E
72
145
145
1
3
17
15
9/2
143
146
28
21
29 50 40 156 156
156
150
41
90
151
5 A
5 B
17 A
B
A
B
52 A1
20 A1
Fig. 8
A
PCB, low voltage
B
PCB 230 V~
C
LON communication module (accessories): See
page 15.
D
Network module and programming unit connec-
tion: See page 19.
E
Coding card: See page 15.
A
Connections to the low voltage PCB
Plug
Component
Single boiler system
Multi boiler system
§
Boiler water temperature sensor
X
X
%
A
One of the following temperature sensors:
■
Cylinder temperature sensor
X
—
■
Top cylinder temperature sensor in a cyl-
inder loading system
X
—
%
B
Cylinder temperature sensor (bottom) in a
cylinder loading system
X
—
)
/
?
The following temperature sensors:
■
Temperature sensor, low loss header
X
—
■
Buffer temperature sensor
X
—
aG
Flue gas temperature sensor
X
X
aJ
A
One of the following temperature sensors:
■
Therm-Control temperature sensor
X
X
■
T1 return temperature sensor
X
X
Electrical connections
Overview of electrical connections
5863679
Installation
Summary of Contents for Vitotronic 11 CC1E
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