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Condair Dual 2 manual.pdf

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Alarm message Cause/Remedy<br />

66<br />

alarm 11<br />

Ag ion test<br />

Errors<br />

An error message indicates a fault detected during operation that may<br />

cause damage to the system. If such a fault occurs, the <strong>Condair</strong> <strong>Dual</strong> is<br />

switched off automatically.<br />

Indication: red LED lights constantly<br />

error message appears on the display<br />

Example:<br />

error 10<br />

Ag ions current<br />

Example:<br />

Fault message Cause/Remedy<br />

error 01<br />

CPU<br />

error 02<br />

int.safety chain<br />

error 03<br />

analog entry<br />

Cause: At the daily Ag ion test the maximum ionization current could not be<br />

reached because the silver electrodes are partially or fully worn.<br />

Remedy: Replace silver ionization cartridge (see chapter 6.4).<br />

If the fault indicator (red LED) and the “Humidification<br />

on” indicator (green LED) light up<br />

intermittently, the external safety circuit (maximum<br />

hygrostat, flow control, etc.) is interrupted.<br />

ext.safety chain<br />

interrupted<br />

Notes:<br />

– An error message always overwrites a preceding alarm message.<br />

– The first error message remains in the display even if subsequent faults<br />

occur.<br />

Following elimination of the source of trouble the error message may be<br />

reset by switching the control unit off and back on again.<br />

Cause: Electronic component (RAM, watchdog, EPROM, EEPROM) on CPU<br />

PCB defective.<br />

Remedy: Replace CPU PCB.<br />

Cause: Internal safety circuit interrupted: power supply PCB defective, flat<br />

ribbon cable between power supply PCB and CPU PCB disconnected<br />

or defective.<br />

Remedy: Replace power supply PCB, plug in flat ribbon cable or replace cable,<br />

as required.<br />

Cause: Signal at analog input out of preset range.<br />

Remedy: Select correct range of analog signal input. Check connected sensor or<br />

controller and replace, as required.

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