REMEHA Avanta Plus 24s, Installation And Service Manual

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22
Remeha Avanta Plus
X9
Terminal
Block X9
Modulating - using Open Therm control
eg: Honeywell Chronotherm or Celcia 20
On / Off - using simple volt free switching control
1
2
3
4
5
6
7
8
Exist
links
X2
Exist
links
Terminal
Block X2
Power supply to external time clock -230v
Switch live (230v) from external time clock DHW demand
Remove existing link 4-3 to use this function
Switch live (230v) from external time clock HTG demand
Remove existing link 4-1 to use this function
5
4
N
L
3
2
1
2.7.1 On/off control – room temperature (volt free
switching)
LT.AL.W7H.000.026
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.
z
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).
LT.AL.W7H.000.027
• 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.
m
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).