34
DEU
ENG
NDL
FRA
ITA
ESP
3.2.1 External change-over signal
HZ 5 HZ 6HZ 7HZ 8 HZ 9HZ 10 HZ 11 HZ 12
pump
1 2
boiler
1 2
ECO
1 2
CO
1 2
H %
1 2
HZ 1 HZ 2 HZ 3 HZ 4
111111222222 111111222222 111111222222
N
N
LLTB
N
L
230 V
24 V
If an external change-over signal is used, the
overall installation switches accordingly be-
tween heating and cooling.
Heating
Cooling
3.2.2 Pump/boiler 230 V
HZ 5 HZ 6HZ 7HZ 8 HZ 9HZ 10 HZ 11 HZ 12
pump
1 2
boiler
1 2
ECO
1 2
CO
1 2
H %
1 2
HZ 1 HZ 2 HZ 3 HZ 4
111111222222 111111222222 111111222222
N
N
LLTB
T4AH
N
L
230 V
The boiler connection allows the control of a
heat generator. Additionally, a pump can be
controlled directly.
boiler
HZ 5 HZ 6HZ 7HZ 8 HZ 9HZ 10 HZ 11 HZ 12
pump
1 2
boiler
1 2
ECO
1 2
CO
1 2
H %
1 2
HZ 1 HZ 2 HZ 3 HZ 4
111111222222 111111222222 111111222222
L1‘
TB
L2‘
L1 L2
T2A
N
L
Wärme-
erzeuger
3.2.3 Pump/boiler 24 V
24 V
The boiler connection allows the control of a
heat generator. Additionally, a pump can be
supplied and controlled directly.
boiler