35
System schema 11
Heat generator and optionally an external heat
source, external heat request, hot water tanks
and heating/cooling circuits. The individual
circuits and hot water tanks are connected via
a hydraulic separator. Each load must have its
own circulation/charge pump. Each circuit has
its own switching valve. It could also have one
for all. The external heat request requests
from the heat generator.
Module
min. number
max. number
Heat generator
0
4
Buffer
0
0
Heating circuit / Cooling
circuit
0
8
Hot water tank
0
4
Solar circuit
0
4
Ext. heat source
0
1
Ext. heat request
0
1
System schema 13
Heat generator, one buffer tank and one hot
water tank and optionally an external heat
source, external heat request, a switching
valve for hot water load and heating/cooling
circuits. A heat exchanger is present for
passive cooling. Each circuit has its own
switching valve. It could also have one for all
circuits. This scheme can also be used for a
buffer tank with fresh water module when a
zone change is available via a valve. The fresh
water module has no influence on the control
of the heating system. The external heat
request requests from the buffer tank.
System schema 12
The individual heating/cooling circuits and hot
water tanks are connected via a hydraulic
separator. Each heating/cooling load must
have its own circulation/charge pump. The
external heat request requests from the heat
generator.
Module
min. number
max. number
Heat generator
0
4
Buffer
1
1
Heating circuit / Cooling
circuit
0
8
Hot water tank
1
1
Solar circuit
0
4
Ext. heat source
0
1
Ext. heat request
0
1
Module
min. number max. number
Heat generator / Cold generator
0
4
Buffer
0
0
Heating circuit / Cooling circuit
0
8
Hot water tank
0
4
Solar circuit
0
4
Ext. heat source
0
1
Ext. heat request
0
1
