924VHE4.02 -
VEH
series humidifiers
02/2022
| 36 |
11.3 Cleaning the boiler
•
Drainthehumidifier;
• Disconnect the machine power supply using the external isolator;
•
OpenthetopofthetankinsidetheAHU;
•
Usethe2screwsatthefronttodisconnectthefilling/dischargemanifoldfromthefrontofthehydraulicunit;
• Loosen the 4 screws on the sides of the top cover and remove the 2 covers;
• Gently lift the hydraulic unit until any remaining water has drained out;
•
Washthehydraulicunittankusingacitricacidoraceticacidsolutionanddetachanylimescalefromtheelectrodes
from the surface of the electrodes using a plastic spatula;
•
Fullyreassemblethehydraulicuni
t.
11.4
Cleaning the optional STAINLESS STEEL discharge tank (VI accessory)
•
Removethetankconnectionfromthedrain;
•
Removethetankfromthebottomofthehumidifier;
•
Cleanthetankbyremovinglimescaledepositsandrinsingitunderrunningwater;
•
Re-fitthetankcor
rectly and reconnect the drain.
11.5 Replacing the electrodes
•
Drainthehumidifier;
• Disconnect the machine power supply using the external isolator;
•
OpenthetopofthetankinsidetheAHU;
•
Usethe2screwsatthefronttodisconnectthefilling/dischargemanifoldfromthefrontofthehydraulicunit;
• Loosen the 4 screws on the sides of the top cover and remove the 2 covers;
•
Unscrewthenutssecuringtheelectrodes,liftthemfromthepartoppositetheconnectionsandslidethemoutofthe
connection slot;
•
Insertthenewelectrodes,reversingthedisassemblyinstructions;
•
Securetheelectrodesintheirseat,makingsuretheyarewellfastenedandthattheO-RINGsealsarepositionedcorrectly;
•
ReconnecttheelectricalcablesusingflangednutsandspecialNordLockwashers,makingsureconnectiontakesplace
in accordance with best practices and current regulations.
DANGER
LOOSE WIRING CAUSES ELECTRIC SHOCKS AND OVERHEATING
Tighten the connections in compliance with the technical specifications relating to tightening torques.
Tighteningtorquebetweennutandlocknut,fortheringterminal:4Nm.
11.6 Opening the electric panel
Forinstallersandmaintenancepersonnel
only
.
3
Fig. 26.
Opening the electric panel
