Atag Zone Manage Installationsanleitung Seite 14

GB
preparing the boiler for operation
Troubleshooting guide
The Zone Manager is protected against the risk of breakdown by internal checks carried out by the PCB which,
if necessary, will activate a safety shutdown.
The table below shows the possible error codes, their descriptions and the recommended action to be taken
in each case:
Error
code
7 0 1 Zone 1 heating flow temperature
sensor fault
7 0 2 Zone 2 heating flow temperature
sensor fault
7 0 3 Zone 3 heating flow temperature
sensor fault
7 1 1 Zone 1 heating return
temperature sensor fault
7 1 2 Zone 2 heating return
temperature sensor fault
7 1 3 Zone 3 heating return
temperature sensor fault
7 2 2 Zone 2 overheating
7 2 3 Zone 3 overheating
4 2 0 ATAG zone supply overload
7 5 0 Control unit not configured
14
Description
Check the connection of the sensor concerned.
Check the continuity of the sensor.
Replace the sensor if necessary.
Check the link and its connection to the "ST2" terminal block on the
control unit
OR Check the maximum heating temperature setting for Zone 2
(parameter 525).
Check the connection of the safety thermostat to the "ST2" terminal block
on the control unit.
Check the link and its connection to the "ST3" terminal block on the
control unit
OR Check the maximum heating temperature setting for Zone 2
(parameter 625).
Check the connection of the safety thermostat to the "ST3" terminal block
on the control unit.
A "BUS supply overload" error may appear when three or more devices
supplying power to the BUS are connected to the system. Example: boiler
+ hydraulic module etc. To avoid this risk, the microswitch (1) on the
electronic PCB of one of the connected devices (not the boiler) must be
switched from ON to OFF.
Refer to the paragraph entitled "Programming the control unit".
Recommended action
O N O N
1 2 1 2