REMEHA Avanta Plus 24s, Installation And Service Manual

Page: 21 / 153

21
L
N
230v - 3 Amp
Power Supply
Terminal
Block X5
X2
X5
X6
X7
X9
Terminal
Block X9
Exist
links
Exist
links
Terminal
Block X2
1
Neutral
2
Open valve to DHW (230v)
3
Open valve to HTG (230v)
Outside sensor (red band) for direct boiler weather compensation
or when used in conjuction with a compatable Open Therm
control eg: Chronotherm or Celcia 20
DHW sensor (red band) or volt free thermostat (make on temp fall)
Remove existing link to use this function
External interlock (volt free)
Remove existing link to use function
Modulating - using Open Therm control
eg: Honeywell Chronotherm or Celcia 20
On / Off - using volt free switching control
eg: Celcia 10 or low volt room thermostat
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
NOTE: Terminal blocks are not in line as shown - diagramatic only
For external DHW priority
diverting valve on System boiler
when used in conjunction with
"Open Therm" compensation
Terminal
Block X7
Terminal
Block X6
1
2
Common Alarm
(Closes on alarm) Boiler Run
(Closes on run)
3
1
2
3
4
5
6
7
8
5
4
N
L
3
2
1
E
LT.AL.W7H.000.025