APR 2018
19
Hot Water Energy Storage
Unvented Cylinders
GB & NI
Installation & Maintenance Instructions for an unvented
hot water cylinder with external thermal expansion
SOLAR HIGH LIMIT CONTROL
These schematic wiring diagrams depict an IMIT high limit control stat and the
connections are numbered accordingly. Where an alternative is supplied connect as per
manufacturer’s instructions.
1
2
Main Supply
double pole
fused spur
230/220
3amp
3
5
4
6
7
8
9
10
L N E
High Limit
Control
E C 1 2
BL G Br O G/Y
Zone Vale
1
2
Main Supply
double pole
fused spur
230/220
3amp
3
5
4
6
7
8
9
10
L N E
High Limit
Control
E C 1 2
BL G Br O G/Y
Zone Vale
Pump
L
N
E
2
3
WIRING DIAGRAMS (CONTINUED)