INSTALLATION
6720818077 (2016/04) -
Greenstar Highflow CDi
ErP
25
4.7.1
PCB Connections
1. Mains power 230 Volt connection ST10:
▶ Separate wires from cable end and strip to 6mm
▶ Connect LIVE wire to terminal L
▶ Connect NEUTRAL wire to terminal N
▶ Connect EARTH wire to the earth connector block next to ST10
Fig. 28 Mains connections
[1]
These cable clamps are for EMS and sensor cables only
[2]
These cable clamps are for 230 volt connections only
2. EMS connection BB for controllers and outdoor sensor
▶ EMS connection for intelligent controllers, e.g. Wave, Sense etc.
▶ These connections are not polarity dependant
3. Optional frost thermostat connection ST6:
▶ Connect frost thermostat supply wire to terminal F
S
▶ Connect frost thermostat return wire to terminal F
R
4. 230V room thermostat and/or external timer ST10:
▶ Remove link
▶ Connect room thermostat LIVE supply to terminal L
S
▶ Connect room thermostat LIVE return to terminal L
R
▶ Connect room thermostat NEUTRAL to terminal N
S
▶ Connect EARTH wire to the earth connector block next to ST10
Fig. 29
5. Installer module for DHW timing
▶ Connect external timer NEUTRAL to top terminal
▶ Connect external timer DHW ON to bottom terminal
▶ Refit all panels
Fig. 30 External timer for hot water
Refer to manufacturers instructions when connecting external parts to
the boiler.
Worcester, Bosch Group cannot be held responsible for wiring errors.
Make the EARTH wire longer so that if the cable is
snagged, the EARTH wire is the last to be pulled out.
ST10
L
ST10
N
E
230V
N
S
N
L L
S
L
R
6720818077-28.1W
o
1.
1
2
ST10
6720818077-29.1W
o
E
EARTH =
LIVE =
L
NEUTRAL =
N
SWITCHED LIVE =
S
ST8
Outside sensor
B
B
4
2
1
A
F
Controllers
and
AND
/OR
FROST
THERMOSTAT
ST6
L
P
N
P
F
S
F
R
2.
3.
4.
L
N
S
ST10
N
S
N
L L
S
L
R
E
ST10
6720818077-30.1Wo
ST8
N
S
Installer module
230V HW interface
5.