30 | Common Applications of ZBR boilers
Greenstar6 720 806 992 (2015/03)
5.2 Multiple zones using circulators with DHW
Fig. 11 Piping
[1] To heating zone 2
[2] Pump heating zone 2
[3] To heating zone 1
[4] Pump heating zone 1
[5] To indirect tank
[6] DHW pump
[7] External system supply temperature sensor for system
supplypipe (to be installed in closest vicinity with
boiler supply Tee)
[8] Boiler primary line - supply pipe 1"
[9] Heating boiler ZBR..-3A... with FW 200 installed on front
[10] Boiler primary line - return pipe 1"
[11] From indirect tank
[12] From heating zone 1
[13] From heating zone 2
[14] Expansion vessel
X 4 × pipe diameters on boiler primery side (here 4 × 1")
ϑ
1
3
5
1211 13
6 720 806 992-05.1O
11
2
4 6
X
7
8
9
10
14
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