Mains Voltage External Controls Connections - Bosch WORCESTER GREENSTAR HE ZB 7-27 Manual

y Cut cable grommet to diameter of cable.
Fig. 26
y Feed cable through cable grommet and connect the
mains supply cable, see Fig. 27.
y Secure cable in cable grommet by means of cable
grip.
Fig. 27
6 720 610 596 GB (01.07)
4.2 Mains Voltage external controls
connections
NOTE: Only double insulated controls not requiring an earth can be used
Ns Ls L
R
ST8
Remove Link
230 V R oom Thermostat Connections
230 V r oom thermos t at and Ns Ls L
Programmer Connections
Fig. 28
Electrical connections
Ns Ls L
R
ST8
Motor
230 V Pr ogrammer Connections
R
ST8
Series
connection
to be made
safe
Motor
6 720 610 576 - 22.1O
21