29
DEU
ENG
NDL
FRA
ITA
ESP
3.2.1 External change-over signal
HZ 5
HZ 6
HZ 7 HZ 8
HZ 9
HZ 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
1
1
1
1
1
1
2
2
2
2
2
2
1
1
1
1
1
1
2
2
2
2
2
2
1
1
1
1
1
1
2
2
2
2
2
2
N
N
L
L TB
T4AH
N
L
230 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 6
HZ 7 HZ 8
HZ 9
HZ 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
1
1
1
1
1
1
2
2
2
2
2
2
1
1
1
1
1
1
2
2
2
2
2
2
1
1
1
1
1
1
2
2
2
2
2
2
N
N
L
L TB
T4AH
N
L
230 V
The boiler connection allows the control of a
heat generator. Additionally, a pump can be
controlled directly.
boiler
3.2.3 Optional humidity sensor
HZ 5
HZ 6
HZ 7 HZ 8
HZ 9
HZ 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
1
1
1
1
1
1
2
2
2
2
2
2
1
1
1
1
1
1
2
2
2
2
2
2
1
1
1
1
1
1
2
2
2
2
2
2
N
N
L
L TB
T4AH
H
N
L
230 V
Humidity sensors (to be provided by the
customer) serve for dewing protection in the
cooling mode.
Humidity
Sensor
HZ 5
HZ 6
HZ 7 HZ 8
HZ 9
HZ 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
1
1
1
1
1
1
2
2
2
2
2
2
1
1
1
1
1
1
2
2
2
2
2
2
1
1
1
1
1
1
2
2
2
2
2
2
N
N
L
L TB
T4AH
N L
N
L
3.2.4 Pilot function for change-over heat-
ing/cooling
If no external change-over signal is available,
the internal pilot function of the base station
can be used for switching the overall installa-
tion between the operating modes Heating and
Cooling. A relay used by the base station for
switching over is used for this.
Cooling
HZ 5
HZ 6
HZ 7 HZ 8
HZ 9
HZ 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
1
1
1
1
1
1
2
2
2
2
2
2
1
1
1
1
1
1
2
2
2
2
2
2
1
1
1
1
1
1
2
2
2
2
2
2
N
N
L
L TB
T4AH
N L
N
L
230 V
Heating
