Rotex GCU compact, Инструкция по установке и обслуживанию

Страница: 52 / 64

52
ROTEX GCU compact -
10 x Faults and malfunctions
Tab. 10-3 Error codes temporary faults (can be detected by firing unit)
Code Component/Designation Fault
E2
Automatic firing unit
Temporary fault, burner shut-
down, automatic release
when error condition no
longer active.
Return temperature exceeds the monitor temperature (overtemperature, no heat dissipation)
E6 Flow temperature exceeds the monitor temperature (overtemperature, no heat dissipation)
E32
Undervoltage with 230 V mains voltage or 18 V internal DC voltage (electronic fault, switch
unit on/off).
E43 Return temperature (t
R1
) is higher than the flow temperature (t
V1
) + 12 K for more than 5 s.
E44 Flow temperature increase too rapid.
E45 Spread (t
V1
- t
R1
) too large.
E66 Interruption during calibration (no heat dissipation, minimum calibration time not met).
E90
Communication interrupted between the firing unit and the switching panel PCB of the control
(check cable and plug connections, total reset, replace the switching panel PCB of the con-
trol, replace the firing unit).
E96 5x Reset within 15 min. Another reset is not possible until a further 15 min.
E98
Fault found in the flame amplifier evaluation during the idle state check (electronic fault, short
circuit ionisation electrode or cable).
E99 Internal fault to firing unit.
E4
Automatic firing unit
Temporary fault, unit is at-
tempting to restart
1x no flame formation at end of safety time (no gas, valves do not open, no ignition sparks)
E5 Flame failure in flame stabilisation (ionisation electrode defective or dirty).
E10 Flame failure at end of the safety time (ionisation electrode defective or dirty).
E24
Value exceeds/falls below min. and max. limits during flame stabilisation or control operation
(blower defective, power supply to blower, electronic fault in blower, cable break).
E50 Flame failure in regular operation (no gas, wind effect, safety gas control block supply).
E61
Regulation deviation during ionisation process too high (1st fault) (burner grounded incor-
rectly or faulty supply voltage firing unit, gas flow pressure too low, ionisation electrode bent
or oxidised, ionisation track faulty, safety gas control block defective)
E62
– Impermissible gas fitting initialisation during 10 s (1st fault) or
– blower falls below 80 % of the minimum speed within 10 s (one-off fault).
(Burner blower defective, wrong gas type set, missing/incorrect gas nozzle, safety gas con-
trol block defective, gas flow pressure too low)
E63 Internal electronic fault - 1. fault (switch the unit on/off).
E68 Impermissible GPV offset value (safety gas control block defective).
E69
No stable state in partial load reached during adaption within the tolerance period (wind
effect, speed fluctuations, blower).