unit. Correct diagrams are supplied with the unit and can also be found in the
technical data book.
4D124072C
Ext. heat source
Max. load 0.3 A - 250 V AC
Min. load 20 mA - 5 V DC
Alarm output
Max. load
0.3 A - 250 V AC
Space C/H
On/OFF output
Max. load 0.3 A - 250 V AC
Options: ext. heat source output, alarm output
Options: On/OFF output
PHC1
Only for demand PCB option
Only for digital I/O PCB option
Digital I/O PCB
Power limitation
digital inputs:
12 V DC / 12 mA detection
(voltage supplied by PCB)
For external BUH option
For internal BUH model
SWB1
1
1
3
Electric pulse
meter input:
12 V DC pulse
detection
(voltage supplied
by PCB)
Preferential kWh
rate power supply
contact:
16 V DC detection
(voltage supplied
by PCB)
SWB1
for HV smartgrid
for HP tarrif
Smartgrid
contacts
Electric pulse
meter input:
12 V DC pulse
detection
(voltage supplied
by PCB)
1
3
for smartgrid
Smartgrid
PV power
pulse meter
for safety
thermostat
Safety thermostat
contact:
16 V DC detection
(voltage supplied
by PCB)
2
2
4
4
Only for domestic
hot water option
SWB1
1
for LV smartgrid
230V AC
Control Device
R3T
-t°
X5A
1
R4T
-t°
R5T
-t°
10 11 1298765432
1
X80A
2
3
4
5
6
3
F2U
F1U
S9S
R1T
-t°
2
X85A
1
KFR
KCR
KHURKHR
1
X801M
2 3 4 5
DS1
OFF
ON
1 2 3 4
A8P
A4P
SS1
1
OFF
ON
X2X1 YC Y1
9
X2M
8
9
X2M
8
7
A1P
L N
Y4Y2X3 X4 Y3
7
S8S
S7S
S6S
X60A
1
432
3 4 5 6
2
X7A
1
2
X8A
1
2
X9A
1
2
X40A
1
2
3
4
5
6
7
8
X33A
1
2
3
4
5
6
B1PW
2
X7Y
31
1
X5M
2
R2T
-t°
X6A
1
2
2
X48A
1
X34A
1
2
3
16
X5M
15
X5M
10 9 6 5 4 313
K1A
A1
A2
K1A
A1
A2
K2A
X5M
14
K2A
S3S
S2S
S1S
S4S
Q4L
5
4
3
2
1
B1L
X10M
1 2 3 4
S10S
S11S
CN2
1
CN1
1
L1 N1 L2 N2
X2M.13
A1P/X28A.1
A4P.YC
A4P.Y2
X2M.13
A1P/X28A.1
X15M.1
X15M.2
A11P/X1B.1
A11P/X1B.2
X5M.10
X5M.9
X5M.4
X5M.3
X5M.6
X5M.5
X5M.14
X5M.13
X5M.10
X5M.9
X5M.6
X5M.5
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