Bosch ZBR16-3A Series Installation And Service Instructions Manual page 31
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Also See for ZBR16-3A Series:
- Installation and service instructions manual (120 pages) ,
- Operating instructions manual (48 pages) ,
- Manual (4 pages)
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Fig. 12 Wiring
[1]
PCB in heating boiler ZBR..-3A... with FW 200 installed on front
[2]
White plug for mains power supply, 120 V AC, 60 Hz
( chapter 7.3.4, page 49)
[3]
120 V AC, 60 Hz
[4]
Red plug for external DHW tank ( chapter 7.3.3, page 49)
[5]
DHW pump
[6]
Taco Circulator Relay (SR504)
[7]
Pump heating zone 1
[8]
Pump heating zone 2
[9]
Outdoor temperature sensor
[10] LWCO (Low Water Cut Off, 24V AC Transformer required)
[11] DHW temperature sensor (connection with clear connector)
[12] External supply temperature sensor (connection with white plug)
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3
2
LS NS
N
L
70
6
5
4
B
B
4
2
N
L
F
A
1
Common Applications of ZBR boilers | 31
70
Zone 1
Zone 2
Zone 3
Zone 4
Power
7
8
9
10
11
12
6 720 806 992-06.1O
6 720 806 992 (2015/03)
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