On/Off Control – Room Temperature (Volt Free Switching); Time Control Using Internal/External 230 V - REMEHA Avanta Plus 35c Installation And Service Manual

Terminal
Block X9
1
2
3
4
5
Exist
links
6
7
Modulating - using Open Therm control
eg: Honeywell Chronotherm or Celcia 20
8 On / Off - using simple volt free switching control
Terminal
Block X2
5 N
Power supply to external time clock -230v
4 L
Switch live (230v) from external time clock DHW demand
3
Remove existing link 4-3 to use this function
Exist
2
links
Switch live (230v) from external time clock HTG demand
1
Remove existing link 4-1 to use this function
X9
LT.AL.W7H.000.026
X2
LT.AL.W7H.000.027
Remeha Avanta Plus
2.7.1 On/off control – room temperature (volt free
switching)
The Remeha Avanta Plus can be connected to a 2-wire on/off
thermostat, such as the Remeha Celcia 10.
Mount the thermostat in a reference room (usually the living
room).
• Remove existing link between connectors 7 and 8 of the X9
terminal strip before use;
• Connect the 2-wire 24 V room thermostat to connectors 7
and 8 of the X9 terminal strip.
If a room thermostat with an anticipation resistor is being used,
parameter p5 should be changed from 0 to 1, see par. 2.9.8.
2.7.2 Time control using an internal or external 230 V
clock
When the switch spur is on, the terminal strip X2 will be live
(230 V).
• A 230 V two channel time clock for CH and DHW control
can be connected to the Remeha Avanta Plus
Live 230 V supply for the time clock - connect to connectors
4 (N) and 5 (L) on X2 terminal strip.
• For CH - remove existing link between connectors 4 and 1
of the X2 terminal strip and connect the 230 V output from
the time clock to terminal 1 on the terminal strip X2.
• For DHW - remove existing link between connectors 4 and
3 of the X2 terminal strip and connect the 230 V output from
the time clock to terminal 3 on the terminal strip X2.
For this option to function correctly a link or room control must
be fitted between connectors 7 and 8 of X9 terminal strip
(Remove existing link before use).
22
.