Electrical Diagram(S) - Heatrae Sadia PremierPlus Installation And User Manual

3.3 Electrical diagram(s)

NOTES: Control terminal numbering may differ from those shown.
Refer to instructions with controls selected.
A double pole isolating switch must be installed in the mains supply.
All earth connections must be connected back to the mains earth supply.
Figure 2: Schematic wiring diagram - basic 2 x 2 port valve system
1
L
Programmer
NOTES: Control terminal numbering may differ from those shown.
Refer to instructions with controls selected.
A double pole isolating switch must be installed in the mains supply.
All earth connections must be connected back to the mains earth supply.
Figure 3: Schematic wiring diagram - 3 port mid position system
8
Zone valve (HTG)
G Br Bl 0
GY
1 2 3
(Supply)
L N
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3
L N
HTG DHW
ON ON
Programmer
Zone valve (HTG)
G W Bl 0
GY
2 3
(Supply)
L N
3 4 5 6 7 8 9 10
1 2
1 2 3 4 5 6 7 8 9 10
2 3
N
HTG DHW DHW
ON ON
OFF
Terminal block
1 2 3
3
Zone valve (DHW)
Room stat
1 3 2
2
2 3
L N
Boiler
Terminal block
1 2 3
3
Zone valve (DHW)
2 3
2
L N
1 3 2
Room stat
Boiler
(supplied)
G Br Bl 0
1 2
Junction box
L
3
N
Pump
(supplied)
0
G Br Bl
1 2
Junction box
L
3
N
Pump