Page 38
L
N
PE
L ... S
ensor / Bus +
L ... GND / S
ensor / Bus -
Sensor systems – Sensors / Inputs
Sensor systems are connected to two-layer series termi-
nals. These are generally configured as follows:
The flow temperature sensors for the heating circuits
used are required in every case. They are fitted onto the
relevant flow pipes.
If necessary, the sensors can be exten-
ded using a shielded cable. In this case,
the shielding in the electrical panel must
be earthed and it must be ensured that
the connection is clean and corrosion-free
(ideally soldered).
Sensor lines should be run separately
form mains cables (see EMC issue
page 34).
Sensor lines have a cable cross section of 0.75mm² as
standard.
The sensor positions are shown in the relevant installa-
tion diagram. The reliable functioning of the system can
only be ensured by correct positioning and a good heat
transfer (heat conducting paste).
For connecting the offset roomstat or remote control,
please see the instructions on the following pages.
1
L1
X1
2
L2
3
L3
5
PE
4
N
6
L1
7
L2
8
L3
9
PE
10
L1
11
L2
12
L3
13
N
14
PE
15
L1
16
L2
17
L3
18
N
19
PE
20
L1
21
L2
22
L3
23
N
24
PE
X1
1
L
X1
3
PE
2
N
4
L
6
N
7
PE
8
L
9
N
10
PE
14
L1
15
L1
5
L
11
L
12
N
13
PE
16
L1
17
N
18
PE
X5
1
2
3
4
5
6
7
8
1
X2
2
3
4
5
6
PE
N
L
N
L
E1
PE
N
L
N
L
L N
L N
55
56
N
L
N
X3
55
56
57
58
59
60
61
62
63
64
65
66
X4
81
82
83
84
85
86
87
88
89
90
91
1
L1
X1
2
L2
3
L3
5
PE
4
N
N
L
8
X5
3x400V / 50Hz
main current
EW / WVU
- idle
periode block
air inlet sensor
PTC RFT 1
14A40
defrost sensor
PTC RFT 204B30
condenser sensor
PTC RFT 204B30
LP
- pressostat
HP
-pressostat
starting current limiter
fault output
fan
EW / WVU - Idle periode block
close
open
room station/ remote control
RSS-T / RFF-T
AF external sensor
RLF
, PF
, WF
return- / buffer- or heating generator
SF service water sensor (buffer sensor)
VF1 flow sensor HC1
VE1 varible input 1
KVLF solar kollector sensor
VF2 flow sensor HV2
VE2 varible input 2
VE3 varible input 3
KSPF solar buffer sensor
relais
for speed control- led pumps
boiler loading pump/ priority valve
pump for heating circle without mixer
buffer loading pump
mixer HC1 open
brown
mixer HC1 close
black
pump HC1
mixer HC2 open
brown
mixer HC2 close
black
pump HC2
control 2. heating generator
variable output 2
programmable e.g. solarpump
phase 230V/ 50Hz
230V / 50Hz control current
electric heating immenser
4-way valve
(heatpump internal)
companion heating
for condens run-off
connection for
compressor heating
1x230V / 50Hz
primary current
compressor
radial
fan
primary current
heating immenser
connection
heating immenser
3x400V / 50Hz
primary current
compressor
radial fan
3x400V / 50Hz
primary current
heating immenser
3x400V / 50Hz
electric
heating immenser
