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System 4
System 4 consists of:
• Burner
• Heating circuit with mixer
• 2. Heater (e.g. solid fuel boiler)
• Buffer storage
• 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.
Power connection
1-
Input configuration
• Domestic hot water temperature
• Feed temperature
17
• Buffer storage temperature
• Outdoor temperature
19
• Temperature 2. Heater
20
Output configuration
• Heating circuit pump Heating circuit 1
• Boiler pump
7
• Burner
6
• Mixer +
5
• Mixer –
4
• Domestic hot water feed pump
• Domestic hot water circulation pump
16
18
8
3
2
Feed temperature sensor 17
Boiler temperature sensor 18
*
Pump heating
circuit 1 8
Boiler pump
4
Burner
Brenner
Pump domestic hot
water circulation 2
Relais-Brenner
Relay burner 6
Domestic hot water temperature sensor 16
*
Mixer + 5
Mixer – 4
Pump domestic
hot water feed
3
Service
water tank
11
12
13
14
15
11
12
13
14
15
Unrequired sensor inputs must be closed off with a
resistor (100 ohm,enclosed).
8
7
6
5
L'
L'
L'
L'
N
N
N
N
8
7
6
5
13
Heating element
Heizkörper
External
temperature
Return temperature
sensor 19
sensor 20
Wärmeerzeuger
Heater
Fresh water
Frischwasser
16
17
18
19
20
16
17
18
19
20
4
3
2
1
L'
L'
L'
L
N
N
N
N
4
3
2
1
GB
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