Installation
GREENSTAR WIRING CENTRE – 6720880441 (2018/01)
13
3 central heating circuits without electronic mixing valves:
Fig. 24 3 heating circuits without electronic mixing valves
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...3 Room thermostat
(Input Zone; : temperature/temperature sensor)
IZ4 No function
MD1 No function
OS1 No function
PZ1...3 DHW circulation pump (Pump Zone)
T0 Flow temperature sensor for the low-loss header
(Temperature sensor); optional
T1 No function
TC1 No function
System components:
230 V AC Mains voltage
BUS EMS 2 BUS
(connection between Greenstar Wiring Centre and boiler)
GWC Greenstar Wiring Centre
PZ1...6 DHW circulation pump in each heating circuit (Pump Zone);
allocation of heating units 1, 2 and 3 or 4, 5 and 6 according
to coding ( chapter 4, page 15)
T0 Flow temperature sensor at the low-loss header
(Temperature sensor); optional
TZ1...6 Room thermostat (Thermostat room temperature Zone; :
temperature/temperature sensor); allocation of heating
circuits 1, 2 and 3 or 4, 5 and 6 according to coding
( chapter 4, page 15)
*) The marked system components are connected to the
module with coding 3 (coding chapter 4, page 15).
1) Thermostats TZ1 to 6 must be programmable room
thermostats and compatible with 230 V AC operation. Pay
attention to the module codes ( chapter 4, page 15).
T0
GWC
PZ1
PZ4*
PZ2
PZ5*
PZ3
PZ6*
TZ1
TZ4*
TZ2
TZ5*
TZ3
TZ6*
1) 1) 1)
1) 1) 1)
0010016319-001
1212 12
TC1 T0
BUS
BUS
12
BUS
123 1
OS1
212
MD1
12
T1
24 V
NL N LN IN L IN L IN LINL
120/230VAC 120/230VAC
IZ1 IZ2 IZ3 IZ4
120/230 V AC
NN43N1414
PZ2 PZ3PZ1
120/230 V AC
230 V AC 230 V AC
L
N
L
N
BUS
T0
M
PZ1
PZ4*
NL
LN
N
M
PZ2
PZ5*
NL
L
M
PZ3
PZ6*
NL
LN
TZ1
TZ4*
NL S
TZ2
TZ5*
LS
TZ3
TZ6*
LS
II
off
40
50
60
70
max
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