Bosch ZBR16-3A Series Installation And Service Instructions Manual page 17
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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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Key to Fig. 8:
[1]
Ignition transformer
[2]
Boiler high limit dial
[3]
120 VAC connection
[4]
External heating pump for unmixed heating circuit (secondary
1)
circuit)
or DHW recirculation pump
[5]
Fuse T 6.3 A (120 VAC)
[6]
DHW thermostat
[7]
External safety high limit or low water cut off (LWCO)
[8]
BUS connection, e.g. heating control
[9]
Room thermostat – dry contact
[10] Outdoor temperature sensor
[11] Code plug
[12] Diagnostic interface
[13] ON/OFF switch
[14] Gas valve
[15] Fan
[16] Flue gas temperature limiter
[17] Supply temperature sensor
[18] Flame rod electrode
[19] Ignition electrode
[20] Boiler block temperature limiter
[21] DHW temperature sensor
[22] Boiler circulator
[23] 3-way valve (Space heating/DHW heating)
[24] Flow meter (turbine)
[25] Additional supply temperature limiter
[26] External system supply temperature sensor
1) Set the service function 5.E, page 62
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Information about the appliance | 17
6 720 806 992 (2015/03)
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