Bosch Comfort Zone Manager 100 Instructions D'installation page 10

10 | Installation
HS
PHS
X
LLHS
120 V AC
Fig. 14 Three heating zones with zone valves and a primary and a secondary heating circuit.
Ground conductor
L Phase (line voltage)
N Neutral conductor
Connecting terminal designations:
120 V AC Line voltage connection (
24 V AC Low-voltage power supply connection (
BUS BUS system connection (
PZ1 Circulator pump connection (Pump Zone)
PZ2...3 Not used in zone valve application
T0 Connection of supply temperature sensor to primary/
secondary piping or low loss header (Temperature sensor)
VZ1...3 Zone valve connection (external transformer required)
Zone Valve terminal connection:
1 and 2 24V Power
3 and 4 End Switch
For 3 wire zone valves connect wires 1,2,3 and remove
factory installed jumper from 3 and 4.
For 4 wire zone valves connect wires 1,2,3,4 and remove
factory installed jumper from 3 and 4.
System components:
120 V AC Supply voltage
24 V AC 120 V AC / 24 V AC transformer
BUS BUS Terminals can be used in any configuration. Multiple
CRC's can be installed in one set of 1, 2 terminals. As well as
communication to heat source.
6 720 811 731 (2015/01)
CZM100
TS
PZ1
CZM100
4 5 6
3
2
1
0
120/230 V AC
PZ1 PZ2 PZ3
120/230VAC
N L N L N L
N L
N L
PZ1
)
)
)
1)
CRC
VZ1
VZ4*
VZ7**
1 2 3 4
T0 VZ1
1 2 1 2 3 4 1 2
BUS
1 2
4
1 2 1 2 3 1 2 3 4
M M M
VZ1 VZ2 VZ3 BUS BUS BUS BUS
VZ4* VZ5* VZ6*
VZ7** VZ8**
CRC CRC100 or CRC200 (Bosch product)
CZM100 CZM100 (comfort zone manager)(Bosch product)
HS Boiler (Heat Source)(Bosch / Buderus Boiler)
PZ1 Heating circulator pump (Pump system) connected to
CZM100 with code switch set to 4
PHS Boiler circulator pump (Pump Heat Source)
LLHS Supply temperature sensor on primary/secondary piping or
low loss header (T0)
TS IDHW tank temperature sensor
VZ1...8 Zone valve connection (Valve zone, external transformer
required)
4 × pipe diameters on boiler primary side. Pipes in
X
secondary loop should be one diameter in size less than pipes
on boiler primary side.
*) Connect the identified system components to the CZM100
with code 5.
**) Connect the identified system components to the CZM100
with code 6.
1) Pay attention to the codes on the CZM100. One CRC100 or
CRC200 has to be assigned to each zone connected to a
CZM100.
Low voltage 24 V transformer is only needed when
operating zone valves. One transformer could be used to
satisfy up to 8 zone valves if sized accordingly.
1)
CRC CRC
VZ3
VZ2
VZ6*
VZ5*
VZ8**
≤ 24 V
VZ2 VZ3 24VAC
3 4 1 2 3 4 1 2
≤ 24 V
BUS BUS BUS
1 2 1 2 1 2
1 2
24 V AC
120 V AC
24 V AC
6 720 811 731-04 .1O
1)
CZM100