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STHCkW ed 04/09
HERCULES Condensing Export
Technical Documentation
Technical Documentation
ERROR 31
Loss of remote control communication
31
The Remote Control is connected correctly.
N.B.: it is possible to use only remote controls supplied by Immergas
(CAR or Super CAR).
No
Check the connection between P.C.B. (clamps 42-43) and remote control
(IN+ and IN-) carried out respecting the polarity and using a dedicated
line to prevent interference.
Yes
Replace the remote control. If the anomaly persists, replace the P.C.B.
ERROR 32
Low temperature zone 2 flow probe anomaly
32
The wiring between the flow probe and the zones digital control
unit (connector X9 terminals 1-2) is OK.
No
Restore the electric connection/replace the wiring.
Yes
Replace L.T. zone 2 flow NTC probe. If the anomaly persists, replace the zones digital control unit.
ERROR 33
Low temperature zone 3 flow probe anomaly
33
The wiring between the flow probe and the zones digital control
unit (connector X13 terminals 1-2) is OK.
No
Restore the electric connection/replace the wiring.
Yes
Replace L.T. zone 3 flow NTC probe. If the anomaly persists, replace the zones digital control unit.
ERROR 34
Low temp. zone 2 overheating safety thermostat intervention.
34
a
The wiring between L.T. zone 2 safety thermostat and the zones
digital control unit (connector X12 terminals 3-4) is OK.
No
Restore the electric connection/replace the wiring.
Yes
Check/replace the L.T. zone 2 safety thermostat. If the anomaly persists, replace the zones digital control unit.
34
b
The L.T. zone 2 safety thermostat functions regularly (intervention
temperature higher than 55 °C).
No
Replace the over-heating safety thermostat.
Yes
The zone pump and the mixing valve function correctly.
No
See section G
Yes
Any CH system zone valve or cut-off cocks are open.
No
Restore circulation in the CH system by acting on the closed devices
and also check:
- the correct functioning of the zone by-pass;
- the opening times of any zone valve (on requirement it is possible to delay
ignition of the burner by acting on the boiler TIMER RT parameter);
- the correct functioning of any thermostatic valves.
Yes
The L.T. zone 2 NTC flow probe is OK (10 kΩ at 25°C).
No
Replace NTC probe.
Yes
Replace the zones digital control unit.
ERROR 35
Low temp. zone 3 overheating safety thermostat intervention.
35
a
The wiring between L.T. zone 3 safety thermostat and the zones
digital control unit (connector X13 terminals 3-4) is OK.
No
Restore the electric connection/replace the wiring.
Yes
Check/replace the L.T. zone 2 safety thermostat. If the anomaly persists, replace the zones digital control unit.
Содержание Hercules Condensing 26 2 E
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