5.8.6.
Connecting a direct heating circuit and a
domestic hot water tank
n
Connecting a direct heating circuit and a type 100SL /
160SL / 200SSL DHW tank
4
5
2
1
3
On/off
OT
BL
RL
S EXT S ECS
PCU
SCU-S 191
C003810-C
x20
0-10V
S AMB C
4 3 2 1
2 1
+ -
S AMB B
2 1
S AMB A
2 1
S SYST + TA -
S ECS
S EXT S DEP C
2 1
2 1
2 1
2 1
2 1
S DEP B
2 1
A
Connect a ON/OFF thermostat or OpenTherm controller
to the terminals of the connector (Option).
4
Remove the bridge.
4
Connect the wires from the ON/OFF thermostat to
the connector
Z
Connect the outside temperature sensor (Option).
E
Connect the DHW sensor to the X20 connector
R
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.
T
Connect the DHW tank anode.
CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX
CALORA TOWER GAS 35S EX
5. Installation
22/04/2016 - 300026141-001-07
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