Specifications

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Removalandinstallationofthegaspressureregulatingvalve
1. Takethehumidieroutofoperation,asdescribedinchapter7.5.
2. Undothescrew(s)(phillipsscrewdriver)andremovetherightsidepanel(s).
3. On RS units only:Undothehoseclampandremovetheairsupplyhosefromtheinletelbow.
Alsodisconnectthesmallairhosefromtheinletelbow.
4. Disconnectelectricalwiringtothegaspressureregulatingvalveandthepressureswitch(note
the connection layout).
5. Undothecouplingofthecorrespondingexiblegaspipeanddisconnectthegaspipe.
6. Undothetwoscrewsoftheventurimanifoldandliftupthemanifoldtogetherwiththegaspres-
sure re gulat ing valve.
7. Undo the four screws and remove the gas pipe connection of the gas pressure regulating
valve.
8. Pulloffthehoseconnectedtothepressureswitch(notetheconnectionlayout).Then,undothe
threescrewsofthepressureswitchsupportandremovepressureswitchassemblyfromthegas
regulating valve.
9. Undothethreescrewsxing the gaspressureregulatingvalve to theventurimanifoldthen,
remove the gas pressure regulating valve from the venturi manifold.
Reinstallationisachievedbyfollowingthereversesequence.Replacedefectivesealswithnewones.
Makesurethatallsealsareinsertedcorrectlyandallcablesareconnectedcorrectly.
DANGER! Danger of explosion!
Followingmaintenance workonthegassystem,aleakagetestmustalwaysbeundertakenin
accordancewithchapter5.5.2.