23
7.1.5 X-Plan wiring diagram (Unvented cylinder option)
Comments
► The unvented cylinder must comply with G3 regulations regarding
the safety controls which are normally supplied as a kit with the
vessel.
► The over heat protection (with manual reset) is wired through our
OpenTherm circuit to prevent the boiler from creating a hot water
demand should this safety control operate.
► For rapid recovery a 30 kW rated coil or greater is recommended
(this should be specified when ordering your vessel).
Parameter P001 change to option 1
Parameter P081 change to option 3
Parameter P070 adjust output to cylinder coil rating (% of kW)
X15
(24V=)
X14
45
X13
(24V =)
X12
(24V =)
X11
(24V =)
N/A
X10
(24V =)
N/A
X8
(230V ~)
X5
(230V ~)
X4
(230V ~)
X3
(230V ~)
X2
(230V ~)
X1
(230V ~)
12
F1 (3,15 AT)
FUSE
3
1
2
12 123
24V=
230V
A
B
C
D
E
Zone Valve
D H W
V4043H
(normally closed)
Cylinder O/H Stat
Manual reset
230v to Overheat thermostat
230Vac 3amp
Switched
Fused Spur
Wiring Centre
Zone Valve
C/HEATING
V4043B
(normally open)
L
N
C
on
o
NTC
Cylinder
Sensor
OpenTherm
Heating Control
EARTH
S/L to HTG M/V
GREY (LIVE)
DHW S/L to M/V
BLUE (neutral)
BLUE (neutral)
BLUE (neutral)
EARTH
S/L to M/
DHW S/L
L N
1 2
3 4 5 6 7 8 9 10
Hot Water Timer (option)
(Volt free switching)
Orange & grey wires from
heating zone are not
required, please isolate &
make them safe.
(if applicable cables not always
supplied with this valve model)
Note:
The zone valve B closes when a
demand for DHW is created giving
priority to recover the cylinder.
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