System 2
System 2 (not for AT-dependent control) consists of a
maximum of:
•
Burner with 2 stages
•
Heating circuit without mixer
•
Water storage tank
•
Domestic hot water circulation pump
(Domestic hot water return pump)
The individual functions are activated by connecting the
appropriate sensor, i.e. the domestic hot water program is
only executed when the domestic hot water temperature
sensor is connected.
Output configuration
•
Heating circuit pump Heating circuit 1
•
Burner Stage 1
•
Burner Stage 2
•
Domestic hot water feed pump
•
Domestic hot water circulation pump
11
GB
8
5
4
3
2
N
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
N
N
N
N
N
N
N
L
L'
L'
L'
L'
L'
L'
L'
230 V~ 50 Hz
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18 19 20
20
19
18
SEL
V
Input configuration
•
Domestic hot water temperature
•
Boiler temperature
•
Outdoor temperature
•
Domestic hot water return temperature
20
19
18
16
Unrequired sensor inputs must be closed off with a
resistor (100 ohm,enclosed).
Heizkörper
Fußboden
Frischwasser
Wärmeerzeuger
Brenner
Stufe1 Stufe2
Burner
Fresh water
Pump domestic
hot water feed
3
Stage 1 Stage 2
Boiler temperature sensor
18
Pump heating
circuit 1
8
Domestic hot water temperature sensor
16
Domestic hot water return
temperature sensor
20
Pump domestic hot
water circulation
2
External
temperature
sensor
19
Heating element
Service
water tank
Heater
Power connection
1-
