Immergas HERCULES Condensing 26 2 E Manual page 69

Technical Documentation
ERROR 31
The Remote Control is connected correctly.
N.B.: it is possible to use only remote controls supplied by Immergas
(CAR or Super CAR).
31
Replace the remote control. If the anomaly persists, replace the P.C.B.
ERROR 32
The wiring between the flow probe and the zones digital control
unit (connector X9 terminals 1-2) is OK.
32
Replace L.T. zone 2 flow NTC probe. If the anomaly persists, replace the zones digital control unit.
ERROR 33
The wiring between the flow probe and the zones digital control
unit (connector X13 terminals 1-2) is OK.
33
Replace L.T. zone 3 flow NTC probe. If the anomaly persists, replace the zones digital control unit.
ERROR 34
The wiring between L.T. zone 2 safety thermostat and the zones
digital control unit (connector X12 terminals 3-4) is OK.
34
a
Check/replace the L.T. zone 2 safety thermostat. If the anomaly persists, replace the zones digital control unit.
The L.T. zone 2 safety thermostat functions regularly (intervention
temperature higher than 55 °C).
The zone pump and the mixing valve function correctly.
34
b
Any CH system zone valve or cut-off cocks are open.
The L.T. zone 2 NTC flow probe is OK (10 kΩ at 25°C).
Replace the zones digital control unit.
ERROR 35
The wiring between L.T. zone 3 safety thermostat and the zones
digital control unit (connector X13 terminals 3-4) is OK.
35
a
Check/replace the L.T. zone 2 safety thermostat. If the anomaly persists, replace the zones digital control unit.
STHCkW ed 04/09
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Loss of remote control communication
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
No
line to prevent interference.
Low temperature zone 2 flow probe anomaly
Restore the electric connection/replace the wiring.
No
Low temperature zone 3 flow probe anomaly
Restore the electric connection/replace the wiring.
No
Low temp. zone 2 overheating safety thermostat intervention.
Restore the electric connection/replace the wiring.
No
Replace the over-heating safety thermostat.
No
No See section G
Restore circulation in the CH system by acting on the closed devices
and also check:
- the correct functioning of the zone by-pass;
No
- 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.
Replace NTC probe.
No
Low temp. zone 3 overheating safety thermostat intervention.
Restore the electric connection/replace the wiring.
No
67
Technical Documentation
HERCULES Condensing Export