Index
A
Accessories ............................................................................... 8
Anti-freeze .............................................................................. 32
Appliance description ................................................................. 7
Appliance details ........................................................................ 9
Accessories .......................................................................... 8
Minimum clearances .............................................................. 9
Technical data
- ZBR16-3A... ................................................................ 18
- ZBR21-3A... ................................................................ 19
- ZBR28-3A... ................................................................ 20
- ZBR35-3A... ................................................................ 21
- ZBR42-3A... ................................................................ 22
- ZWB28-3A... ............................................................... 23
- ZWB35-3A... ............................................................... 24
- ZWB42-3A... ............................................................... 25
ZBR..-3A appliance layout..................................................... 10
ZWB..-3A appliance layout .................................................... 12
Appliance information ................................................................. 7
Appliance layout
ZBR..-3A ............................................................................ 10
ZWB..-3A ........................................................................... 12
Automatic anti-cycle time (service function 3.A) ........................... 60
B
Bleeding.................................................................................. 51
Bleeding function................................................................. 60
C
Call up last fault saved ............................................................... 69
Call up latest fault code ............................................................. 62
Changing the sensor curve of the heating pump ............................ 57
Check gas supply dynamic pressure ............................................ 67
Checking the electrical wiring ..................................................... 73
Checking the flue system ........................................................... 68
Checklist for inspection and maintenance .................................... 74
Combustion air......................................................................... 34
Commissioning ........................................................................ 51
Bleeding ............................................................................. 51
Commissioning log ................................................................... 81
Condensate composition ........................................................... 26
Condensate trap....................................................................... 73
Connecting
3-way valve (ZBR only) ......................................................... 49
DHW tank ........................................................................... 47
Supply temperature sensor ................................................... 47
Tank primary pump (ZBR only) .............................................. 49
Corrosion inhibitors .................................................................. 33
Greenstar
D
Default settings ....................................................................... 54
Details about the appliance
Proper use ........................................................................... 7
Scope of delivery................................................................... 5
Technical specifications
- ZBR16-3A................................................................... 18
- ZBR21-3A................................................................... 19
- ZBR28-3A................................................................... 20
- ZBR35-3A................................................................... 21
- ZBR42-3A................................................................... 22
- ZWB28-3A... ............................................................... 23
- ZWB35-3A... ............................................................... 24
- ZWB42-3A... ............................................................... 25
Type overview....................................................................... 7
DHW circulation....................................................................... 32
Dimensions ............................................................................... 9
Disposal ................................................................................. 68
E
ECO button ............................................................................. 55
Electrical connection ................................................................ 73
3-way valve (ZBR only)......................................................... 49
Connecting accessories........................................................ 47
Connecting LWCO device ..................................................... 50
Connecting power supply ..................................................... 49
DHW circulation pump ......................................................... 48
DHW tank........................................................................... 47
Heating control, remote control units ..................................... 47
Supply temperature sensor................................................... 47
Tank primary pump (ZBR only) .............................................. 49
Temperature limiter ............................................................. 48
Electrical connections
Temperature limiter ............................................................. 47
Electrical wiring
ZBR..-3A............................................................................ 14
ZWB..-3A... ........................................................................ 16
Energy saving .......................................................................... 52
Environmental responsibility ..................................................... 68
Expansion vessel...................................................................... 73
F
Factory settings ....................................................................... 54
Fault codes ............................................................................. 76
Faults..................................................................................... 76
Not shown on the display...................................................... 79
Shown on the display ........................................................... 77
First service level ..................................................................... 59
Flue gas accessories................................................................. 37
Frost protection....................................................................... 56
Fuses .......................................................................... 14, 16, 46
G
Gas and water connections........................................................ 45
Gas type ................................................................................. 65
Adjustment......................................................................... 65
Conversion......................................................................... 65
Conversion kit..................................................................... 65
Gas/air ratio ............................................................................ 66
Gravity heating systems ............................................................ 32
Index | 99
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