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The following heating systems are only applicable with relay
module ECA 80
10.6
Indirectly connected system and secondarily
connected DHW storage charging system
System settings
Circuit Line Description
I
51
I
52
I
53
I
90
10.7
Indirectly connected system and secondarily
connected DHW storage charging system
(DHW priority)
System settings
Circuit Line Description
I
51
I
52
I
53
I
90
P2/M2*
For the control of the actuator use either relay output P2 or triac
output M2, see section 12.
DHW charging pump /
changeover valve
Closed valve / normal operation
Desired flow temperature at
DHW charging
P3 = DHW circulation pump
DHW charging pump /
changeover valve
Closed valve / normal operation
Desired flow temperature at
DHW charging
P3 = DHW circulation pump
10d
Recomm.
setting
OFF
OFF
OFF
ON
Recomm.
setting
ON
OFF
OFF
ON
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