Specifications

35
5.5.2 Leak testing
Aftercompletionoftheinstallationwork,thewholegaslinemustbetestedtoamaximumpressure
of40mbar(4.0kPa)fornaturalgasor150mbar(15kPa)forpropaneandcheckedforleaksus-
ingacommerciallyavailablesoapsolution.Thebubblesindicateleaks.Allleaksmustbeeliminated
beforethehumidierisputintooperation.
DANGER!
Neveruseanopenametocheckforleaks.Thepresenceofanyleakageisasourceofdanger
topersonsandtoproperty,duetothepossibilityofreandexplosion.
Ifthegascircuitmustbetestedtoapressureofover150mbar(15kPa),thegassupplypipemust
be removed from the unit connection. After the test, the gas line must be depressurized before it is
reconnected to the unit.
CAUTION!
Non-observance of the above instruction can lead to damage to the gas pressure regulating valve.
Gas pressure valves overloaded due to high pressure are not covered by the manufacturer‘s
guarantee.
5.5.3 Conversioninstructionsforoperatingthehumidierwithanothertypeofgas
Exworkstheapplianceisequippedtooperateononetypeofgas.Toconvertanapplianceforopera-
tiononanothertypeofgas,followthedirectionsbelow(seealsoillustrationonthefollowingpage).
Important:Theconversionshallbecarriedoutbyamanufacturer’sauthorizedrepresentative
orpersontrainedandlicencedforsuchactivities,inaccordancewiththerequirementsofthe
manufacturerorlocalauthoritieshavingjurisdictionintheareaofinstallation.
1. Disconnectthehumidierfromtheelectricalpowersupplyandtakeprecautionsagainstinadvert-
entswitchingon.
2. Turn off gas supply to appliance and secure it against inadvertent open ing.
3. Undothescrew(s)(phillipsscrewdriver)andremovetherightsidepanel(s).
4. Disconnectthehose(s)fromtheinletelbow(notethelayout).Then,loosenthehoseclampand
removetheinletelbow.
5. Undothecouplingofthecorrespondingexiblegaspipeanddisconnectgaspipefromthegas
pressure regulating valve.
6. Disconnectelectricalcablestothegaspressureregulatingvalveandtheairpressureswitch
(note assignment before removal).
7. Undothetwoscrewsthatmounttheventurimanifoldtothecombustionairblower,thenliftup
themanifoldtogetherwiththegaspressureregulatingvalve.
8. Undo the four screws and remove the gas pipe connection of the gas pressure regulating
valve.
9. Undothethreescrewsoftheairpressureswitchsupportandremovethepressureswitchas-
sembly from the gas pressure regulating valve.
10.Checkthecorkgasket andtheO-ring in thegaspipe connectionfordamageand replaceif
necessary.