IDEAL Henrad SEC 80FF, Руководство по установке и обслуживанию

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Henrad SEC FF -
Installation
87 FAULT FINDING
FAULT FINDING
In normal standby mode the first digit of the display indicates
the boiler sequence, and the last 2 digits the boiler flow
temperature. Note. To gain access to the Gas module control buttons
remove the cover plate . Refer to Frame 92.
The boiler Gasmodul control unit is equipped with a fault
diagnostic system.
Sequence Function
0 .............................................. Standby - no heat request
1 .............................................. Fan pre-purge
2 .............................................. Ignition
3 .............................................. Burner on - CH
4 .............................................. Burner on - DHW
5 .............................................. Airflow switch not correct (not applicable)
6 .............................................. Burner off in CH mode (flow temperature
T
1
> 5
o
C
above set flow temperature Tset )
7 .............................................. Pump overrun - CH mode
8 .............................................. Pump overrun - DHW mode
9 ............ (Fault Condition) ...... Flow temperature T
1
> 95
o
C
Return temperature T
2
> Tset - 10
o
C
T
1
- T
2
> 35
o
C
T
1
- T
2
negative before lockout
F
AUL
T FINDING
Note. The Gasmodul control unit is fitted with 3 fuses.
If the boiler fails to operate, check these first. To gain
access to the fuses refer to Frame 68.
IMPORTANT.
At the end of any fault finding, always refit the control
buttons cover plate.