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INSTALLATION
8.3.1 - Connection to a single heating circuit
8.3.2 - Connection to a heating circuit with a domestic hot water production system
8.3.3 - Connection to a double heating circuit
8.3 - Various typical water circuits are illustrated below
Rc1
Dc1
VM1
M
C
C1
FCX-33-U
C
Boiler
M
Pressure gauge
C1 = Radiator circuit
VM1 1
st
circuit mixer valve
Dc1 1
st
circuit heating outlet
Rc1 1
st
circuit heating return
Fig. 24
C1
Dc1
VM1
C
C
C3
P3
Ss
B
Rc1
M
FCX-34-U
C
Boiler
M
Pressure gauge
C1 = Radiator circuit
VM1 1
st
circuit mixer valve
Dc1 1
st
circuit heating outlet
Rc1 1
st
circuit heating return
C3 = Domestic hot water prepara-
tion circuit
P3
Domestic hot water pump
B
Domestic hot water production
system
Ss
Domestic hot water sensor
Fig. 25
Rc2
Dc1
Dc2
VM1
C
C2
P2
VM2
Sd
Rc1
M
C1
FCX-35-U
C
Boiler
M
Pressure gauge
C1 = Radiator circuit
VM1 1
st
circuit mixer valve
Dc1 1
st
circuit heating output
Rc1 1
st
circuit heating return
C2 = Underfloor heating circuit
P2
2
nd
circuit heating circulator
VM2 2
nd
circuit mixer valve
Dc2 2
nd
circuit heating output
Rc2 2
nd
circuit heating return
Sd
Heating output sensor
Fig. 26