26
AVANTA 18v
System Only - Option 3
Typical “S” plan Heating and DHW using 230v controls
Check valve may
be necessary
DHW Zone valve
c/w end switches
Condensate
22mm Gas
22mm
Flow
22mm
Return
2 Channel
Time clock
230v Supply
Room Stat
DHW thermostat
HTG Zone valve
c/w end switches
Wiring Centre
AOVS003
V4043H
DHW Zone Valve
End Switch
Close on fully
open
V4043H
HTG Zone Valve
End Switch
Close on fully
open
L641 Cylinder
Thermostat
2
T6360/T4360
Room Thermostat
91
0
8
7
4
35
6
12
Wiring
Centre
230v - 1 - 50
3 amp Switched Spur
L
N
E
3
1
C
1
2
L
N
ON
OFF
ON
OFF
HTG
DHW
ST699 Control
Clock
Call
Call
5
E
AOVW001
Boiler
L
N 230v
Power Supply
4
X2
3
2
Remove exist links
1
X6
L
N
4
N
L
X4
3
2
1
System Pump
Must be wired direct
to boiler
E