Bosch ZWB 42-3 A NG - Multiple Zones Using Circulators

Examples of Installations
27
Greenstar – 6721822579 (2021/01)
5.2 Multiple zones using circulators
Fig. 11 Piping
[1] Pump heating zone 3
[2] To heating zone 3
[3] Bosch room temperature controller heating zone 3 (CRC100)
[4] Pump heating zone 2
[5] To heating zone 2
[6] Bosch room temperature controller heating zone 2 (CRC100)
[7] Pump heating zone 1
[8] To heating zone 1
[9] Bosch controller heating zone 1 (CRC200)
[10] Comfort Zone Module CZM100
[11] External system supply temperature sensor for system supply
pipe (to be installed in closest vicinity with boiler supply Tee)
[12] Boiler primary line - supply pipe 1"
[13] Boiler primary line - return pipe 1"
[14] Heating boiler ZBR...-3A
[15] From heating zone 1
[16] From heating zone 2
[17] From heating zone 3
[18] Expansion vessel
X ≤ 4 × pipe diameters on boiler primary side (here ≤ 4 × 1")
For all accessories not included in the package please refer to the Bosch
Product Catalog.
ϑ
2
5
8
1615 17
1
4 7
X
13
18
3 6
109
12
14
11
6 720 806 992-05.2O