Specifications

52
5. Pre-purge of the gas pressure regulating valve(s):
• Disconnectallignitorsfromtheignitionmodules.
• Switch-Onthehumidierattheunitswitch.
Thecombustionairblower(s)start(s).Note:Onmulti-blowerunits,waituntilallblowershave
started.
Then, 15 seconds later (pre-purging time) the gas pressure regulating valve opens for 7 sec-
onds, then it closes again (due to missing ignition).
Note: On multi-burner units, this process is successively completed for all burners.
Afterthreeignitionattemptsperburner(completewithpre-purging),thehumidiergoesinto
safetylockout.
Note:Toresetthesafetyswitch-off,switch-offthehumidierforatleastvesecondsandthen
switchitonagain.
Repeatthissequenceminimum2 timesinordertomake surenoairisleftinthegassy-
stem.
• Switch-offthehumidierattheunitswitch.
• Reconnectallignitorstotheignitionmodules.
6. Startthehumidier:
• Opentheshut-offvalveinthewatersupplypipe.
• Opentheshut-offvalveinthegassupplypipe.
• Switchontheexternalserviceswitch.
• SwitchthehumidierOnattheunitswitch.
The Condair GS carries out a systemandleveltest,duringwhichallthe
LEDs light up.
If a failure occurs on the system test, a corresponding error message is
showninthedisplay.
After the system test the unit is in normaloperationmode.Thedisplayshows
the standard operating display(rstpageoftheindicationlevel).
Note: The contents of the standard operating display depends on the actual
operatingstatusandonthecongurationoftheCondairGSandcandiffer
from the opposite display.
As soon as the humidity controller demands humidity, the combustion air
blower(s)start(s).Then,15secondslater(pre-purgingtime)theignition
process for the burner(s) is started. The burner(s) ignite(s) and steam is
generatedinthetankviatheheatexchanger(s).ThegreenLEDlightsand
theadjacentdisplayisshown.
If no ame is detected by the ame sensor within 7 seconds after the
ignition of a burner, the gas pressure regulation valve closes again. The
ignitionsequenceisrepeatedamaximumofthreetimesperburner.Ifno
burnercouldbeignited,thehumidiergoesintosystemlockout.The red
LED lights and an appropriate fault message appears in the display. At
the same time, the operating and remote fault alarm potential-free contact
(“Error”) closes.
Note:Thesystemlockoutisresetbyswitchingthehumidier offbriey
(5 seconds) and then on again.
If only individual burners of a multi-burner unit could not be ignited the
humidier remains operational. In the display a corresponding warning
messageappearsinthedisplayindicatingwhichburner(s)has/havefailed
to ignite.
Condair GS 240
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Condair GS 240
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03.03.2009 12.00.00
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Condair GS 240
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