Bosch WORCESTER GREENSTAR, Руководство пользователя

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Installation
GREENSTAR WIRING CENTRE – 6720880441 (2018/01)
11
3-way valve (Y-plan) system:
Fig. 22 3-way valve system
Earth lead
L Phase (mains voltage)
N Neutral conductor
Switch:
I Code switch I – system type
II Temperature switch II – domestic hot water cylinder
temperature
Terminal identification:
230 V AC Mains voltage
BUS
EMS 2 BUS
IZ1 No function
IZ2 No function
IZ3 Room thermostat
(
I nput Z one;

: temperature/temperature sensor)
IZ4 Frost stat (

: temperature/temperature sensor)
MD1 No function
OS1 No function
PZ1...2 3-way valve:
Terminal 14: DHW off:
Terminal 43: heating mode
PZ3 DHW circulation pump ( P ump Z one)
T0 No function
T1 No function
TC1 Cylinder temperature sensor ( T emperature sensor C ylinder)
System components:
230 V AC Mains voltage
BUS
EMS 2 BUS system
(connection between Greenstar Wiring Centre and boiler)
GWC Greenstar Wiring Centre
HS Boiler ( H eat S ource)
PHS Domestic hot water circulation pump ( P ump H eat S ource)
TC1 Cylinder temperature sensor ( T emperature sensor C ylinder)
TR3 Room thermostat ( T hermostat R oom temperature); optional;
not shown in Fig. 20
TF4 Frost stat ( T hermostat F rost protection); optional; not shown
in Fig. 20
VZ12 Diverter valve ( V alve Z one); connect as follows: green/yellow
to: PZ1-
blue to: PZ1 – N
grey to: PZ1 – 14
white to: PZ2 – 43
orange to: PZ2 – no description (no function)
When there is a simultaneous demand for central heating and domestic
hot water, the Y-plan diverter valve will operate for 10 minutes at a time
between both until both demands have been met. To reduce extended
heat-up times for central heating and hot water, it is recommended to
adjust the program to meet the demand for hot water before the central
heating demand is started.
0
1
2
3
4
S
Y
I
off off
40 40
50 50 60 60
70 70
max max
II II
GWC
PHS
TC1
VZ12
HS
0010016317-001
1 2 1 2 1 2
TC1 T0
BUS BUS
1 2
BUS
1 2 3 1
OS1
2 1 2
MD1
1 2
T1
24 V
N L N L N IN L IN L IN L IN L
120/230VAC 120/230VAC
IZ1 IZ2 IZ3 IZ4
120/230 V AC
N N 43 N 14 14
PZ2 PZ3 PZ1
120/230 V AC
230 V AC 230 V AC
L N L N
BUS TC1 VZ12
M
N
M
N 1 2
5
14 43
N
M
PHS
N L
L N
TR3
L S
TF4
L S