Immergas Zeus Superior - Page 50

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STZSkW ed 12/07 ZEUS Superior kW
Technical DocumentationTechnical Documentation
ERROR 15
Wiring conguration error
N.B.: is board can be used for Superior kW boilers with sealed chamber/open
chamber and istantaneous or with storage tank. e board automatically recognises
the type of boiler by the relative wiring of the circuit board.
15
e board is congured for sealed chamber boiler with storage
tank.
No
For Zeus Superior kW boilers, check the following connections.
- sealed chamber conguration:
check the presence of connection jumper between clamps 1-3 of con-
nector X19;
- storage tank conguration:
check the presence of a connection jumper between clamps 6-7 of
connector X9.
Yes
e wiring between ue transducer and circuit board is OK.
No
Restore the electrical connection/replace the wiring.
Yes
A voltage is present between 10 and 18 VDC between clamps 1-3
of connector X9.
No
Replace the circuit board.
Yes
A voltage is present between 0.25 and 3.2 VDC between clamps
2-3 of connector X9.
No
Replace the ue transducer.
Yes
Replace the circuit board.
ERROR 17
Incorrect fan speed
17
Replace the circuit board.
ERROR 20
Parasite ame block
20
e detection electrode and relative wiring are integral
No
Check/replace the detection electrode.
Yes
Replace the circuit board.
ERROR 24
Push button control panel anomaly
24
e buttons on the control panel function normally (check that the
"click" is heard when each key is pressed).
No
Check that there are no keys blocked or jammed under the control
panel.
Yes
Replace the display board
ERROR 27
Insucient circulation
27
e circulation pump functions correctly.
N.B.: make sure that the pump operates at maximum speed
No
See section B
Yes
Any heating system zone valves or interception valves are open.
No
Restore the circulation in the heating plant by acting on closed devices
and also check:
- the correct positioning/functioning of the boiler by-pass;
- zone valve opening times (on requirement it ispossible to delay ignition of
the burner by acting on the "P68" parameter of the boiler);
- the correct functioning of the thermostatic valves.
Yes
e NTC ow probe is OK (10 kΩ at 25°C).
No
Replace the NTC probe.
Yes
Check/clean/replace the main heat exchanger. If the anomaly persists, replace the circuit board.