Technical data

20
Installation of supplementary accessories to protect
an unvented domestic hot water cylinder
Install supplementary accessories in accordance with legal
requirements and the installation instructions supplied.
The following components may be supplied by the unvented
domestic hot water cylinder manufacturers, please refer to
the installation instructions. Alternatively they are available
at plumber’s merchants.
•
HLC
•
SRV
•
SWC (see drawing)
SP
PE
230V
R1
R3
ISM1
123456 7
89
10
111213
14
TB
230V AC
R2
LNPE
E C 1 2
HLC
L N E
230V AC
L N E
SP
BL G BR O G/Y
SRV
SWC
LNE45678910
Electrical connection of Solar Wiring Centre
HLC High limit control
ISM1 Module for standard solar
heating systems
PE Circulation pump for thermal
disinfection (Option E)
R1...3 Connection for pump or
diverter valve
SP Solar circuit pump
SRV Solar return two port valve
SWC Solar wiring centre
TB Temperature limiter