
5.8.4.
Connecting a direct heating circuit
SCU
T
S
+
B
A
B
0
-1
0
V
S
AM
B
C
4
3
2
1
2
1
+
-
S
AM
B
B
2
1
S
AM
B
A
2
1
S SYST
+
T
A
-
S ECS
S EXT
S DEP
C
2
1
2
1
2
1
2
1
2
1
S DEP
B
2
1
On
/o
ff
OT
BL
SE
xt
PCU
C003263-F
1
2
2
3
2
A
Connect a safety thermostat if the heating circuit is for
underfloor heating.
4
Remove the bridge.
4
Connect the wires from the safety thermostat to the
connector.
Z
Do not connect anything to the terminal block.
E
Connect the outside temperature sensor.
Settings to be made for this type of installation
Parameters
Access
Settings to be made See chapter
INSTALLATION
Installer level
#SYSTEM
menu
EXTENDED
If safety thermostat is connected to
BL
on the connection terminal
block:
IN.BL
Installer level
#PRIMARY INSTAL.P
menu
STOP HEAT
5. Installation
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