Geco GH10PA, Руководство пользователя, Страница: 12 / 18

GH10PA USER MANUAL PAGE 12
PPUH “GECO” Sp. z o.o. [Ltd.] Issue II SINCE DECEMBER 2011
6.5. Alarms
The Controller uses 7 different alarms. In each alarm condition, the Controller displays the alarm number
and activates the alarm sound output. In case of several alarm conditions occurring simultaneously, their
numbers are displayed in sequence. You can exit an alarm condition only by pressing , except the AL12
alarm.
Alarms:

AL1

STB activated or fuse blown

AL2

Boiler water outlet temperature sensor failure

AL3

Feeder temperature sensor failure

AL11

Maximum feeder temperature exceeded

AL12

Boiler overheating

AL13

Boiler burnout

AL14

Burnout when firing up
6.6. Power failure
After power failure the Controller resumes operation according to the condition it was in before the
power failure. The Controller waits 1 minute for the mains power parameters to stabilise, and then resumes
operation with the previously entered settings.
During the waiting period, the display shows time in seconds remaining until the end of the period,
together with indication of its condition before the power outage:

blinking “A” for AUTO mode,

blinking “P” for MAINTAIN mode,

blinking “r” for MANUAL mode.
Respective indicators (AUTO or MAINTAIN ) are blinking together with the letters.
6.7. Boiler burnout detection
6.7.1. No fuel
If during automatic operation the boiler outlet water temperature remains below the F08 setting for a
period of time set in the F09 setting, then the Controller considers the boiler as “burned out” and enters the
AL13 alarm condition.
6.7.2. Sudden Drop of Outlet Water Temperature
If during automatic operation the boiler outlet water temperature drops by 10°C, and during that
dropping period the temperature does not rise by 4°C, then the CH pump is switched off, and the Controller
goes into the burnout detection mode.
The Controller waits for the period of time, during which it checks whether a rise of 4°C occurs.
If YES, then the burnout detection condition is stopped, and the CH pump (if necessary) is started.
If NOT, this means that the furnace is burned out – the Controller enters the
AL13 alarm condition.