Wolf CGB-75 - Page 26

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12.Electricalconnection
The functions of input E1 can be scanned and adjusted with eBUS-enabled Wolf control accessories. The following functions
can be allocated to input E1:
Code Meaning
0 Nofunction
Input E1 is not taken into consideration by the control unit
1 Roomthermostat(factorysetting)
With open input E1, heating operation will be blocked (summer mode), independent of any digital Wolf control
accessories.
2 Maximumthermostat,systempressureswitchorcondensateliftingsystem
Connection option for a maximum thermostat, system pressure switch or condensate lifting system. To enable the
burner,inputE1mustbeclosed.Whenthecontactisopen,theburnerisblockedbothforDHWandheating,as
well as for emissions tests and frost protection.
3 Notassigned
4 Flowswitch
Optionalconnectionforanadditionalwaterowswitch.
input E1 must be closed within 12 seconds after the pump has been switched. Where this is not the case, the
burner will be switched OFF, and fault 41 will be displayed.
5 Ventilationairdampermonitoring
See parameters for output A1, no. 7. Supply air damper
8
Burnerblock(BOB)
Operation without burner
Closed contact, burner blocked
Heatingcircuitpumpandcylinderchargingpumpoperateinstandardmode
In emissions test mode and frost protection the burner is enabled
Open contact enables the burner again
Connection,inputE1(24V),potential-free
Connect the cable for input 1 at terminals E1 in accordance
withthewiringdiagram;rstremove thejumperbetweena
and b from the respective terminals.
No external voltage may be connected to in-
put E1, as this could destroy the component.
Note
Fig.: Connection, room thermostat
Connectinglowvoltagedevices
When installing the appliance in places
where there is a risk of increased electro-
magneticinterference,itisadvisabletot
screened sensor leads and eBUS cables.
The cable shield should be connected at
one end to the PE potential in the control
unit.
Note