Electrical Installation
11
5.3 ‘Y’ Plan System Schematic and Wiring Diagram
Figure 5-2:
‘Y’ Plan system schematic
Figure 5-3:
‘Y’ Plan wiring layout
Boiler
Radiator
Pump
Grant DuoWave Plus
Indirect water cylinder
3 port mid-position valve (not supplied)
Not supplied
230V
50Hz
Room
Thermostat
L
N
E
2
1
C
C
1
2
1
2
3
4
5
6
7
N E L
N
E
L
N
HW On
HW Of
f
HTG
L
8
9
10
2
1
3
Mid position
zone valve
White
Blue
Grey
Blue
Orange
Brown
Green/Yellow
2 port
zone valve
(supplied)
Green/Yellow
Notes:
1. Orange and grey wires
not required electrically
isolate
2. *2 port valve not
required with open vented
cylinder
High limit Con trol
Cylinder Dual
Thermostat (Top Coil)
Junction box
Time controller
Boiler
Pump
