Wolf CGB-75 Assembly And Operating Instructions Manual page 20

The functions of output A1 can be scanned and adjusted with Wolf control accessories with eBUS capability.
The following functions can be allocated to output A1:
Code Explanation
0 No function
Output A1 is not activated
1 DHW circulation pump 100%
Output A1 is activated by control accessories (timed) if DHW has been enabled. Output A1 is constantly activated
when no accessory controller is installed.
2 DHW circulation pump 50%
Output A1 is activated in cycles by control accessories (timed) if DHW has been enabled. 5 minutes ON and
5 minutes OFF. Output A1 is constantly cycled in 5 minute intervals when no accessory controller is installed.
3 DHW circulation pump 20%
Output A1 is activated in cycles by control accessories (timed) if DHW has been enabled. 2 minutes ON and
8 minutes OFF. Output A1 cycles constantly when no accessory controller is installed.
4 Alarm output
Output A1 is activated 4 minutes after a fault.
5 Flame detector
Output A1 is activated after a flame has been recognised.
6 Cylinder primary pump (factory setting for A1)
Output A1 is activated during cylinder heating.
7 Ventilation air damper
Output A1 is activated before each burner start. The burner will, however, only be enabled after input E1 has
been closed.
Important: In any case, input E1 must also be
programmed as "Ventilation air damper"!
For the feedback to input E1 use a zero volt contact (24 V). Otherwise, use an on-site relay for potential
separation.
8 External ventilation
Output A1 is activated inverted to the gas combination valve.
Switching off external ventilation equipment (e.g. extractor fan) during burner operation is only required if the boiler
is operated as an open flue system.
9 External LPG valve
Output A1 is activated in parallel to the gas combination valve.
10 External pump
Output A1 switches synchronously with the heating circuit pump (HKP); used for example with system separation.
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Electrical connection
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