- 33 -
INSTALLATION
9.2.4 - Analogue and digital controls (depen-
ding on the climatic conditions)
P1 1
st
circuit heating pump
P2 2
nd
circuit heating pump
VM1 1st circuit motorised mixer valve (motor 4min/90°)
VM2 2
nd
circuit mixer valve (motor 4 min/90°)
P3 Domestic hot water pump
(domestic hot water sensor obligatory)
TLS Safety thermostat if the 2
nd
circuit is for underfloor
heating
The analogue and digital controls allow all heating
installations to be controlled in relation to climatic
conditions, through automatic action on the installa
-
tion’s mixer valve - See the control instructions.
230 V - 50 Hz
+ Earth
N12345678
P1 P2
P3
VM 1 VM 2
Neutral
L
Liv e
Ea r t h
TL
FCX-41-3
Fig. 52
9.3 - Principle schematic
7
X11
X10
X9
X4
X12
6
5
4
321
BR
V1
TSE
TRC
E/H
M/A
N
FCX-42-0
L
8
X1
X2
Y1
V2
X3
TSF
Y2
Y3
X6
Fig. 53
L: Live
N: Neutral
M/A: Start/Stop switch
TSE: Water overheating safety ther-
mostat
E/H: Summer/Winter switch
TRC: Boiler temperature control ther-
mostat
TSF: Combustion product overheating
safety thermostat
BR: Burner
V1 On light
V2: Safety device light
X/Y Connectors for electronic regula-
tor
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