924VHE4.02 -
VEH
series humidifiers
02/2022
| 17 |
5. INSTALLATION
VEH
series humidifiers are defined as "
NOT ACCESSIBLE TO THE PUBLIC
".
5.1 Hydraulic unit structure
5.1.1 Top
• Steam outlet;
5.1.2 Front
• Water drain for connection to waste water drainage pipes (Ø 40 mm (1.57 in.));
• Tear resistant cable gland for power supply cables;
•
3/4"GASmalewatersupplyfitting.
•
Electricalconnections(Fastons)forfillingsolenoidvalveandelectricdrainpump.
5.1.3 Rear
• Maximum level sensor connection.
5.2 Hydraulic installation
Forcorrecthydraulicinstallation,thefollowingshouldbeprovidedoutsidetheAHUandintheimmediatesurroundingsofthe
hydraulic unit installation site:
• A shut-off tap;
•
Afiltersupplementingtheonealreadypresentinsidethesolenoidvalve;
• A pressure reducer (if the mains pressure exceeds1 MPa (10 bar)).
Ifusingmetalpipes,makesuretheyareproperlyearthed.
Donotusepre-existingsystempipeworkorusedmaterials.Onlyusethematerialssuppliedwiththeproduct.
NOTE
:ifusingapressurereducer,makesureisiteffectiveanddoesnotcausedrasticpressuredropswhenthemainspressureisverylow.
NOTICE
MALFUNCTIONING OF THE EQUIPMENT
• The water supply must have a minimum pressure of 0.02 MPa (0.2 bar).
• Connect the solenoid valve to the mains using the hose supplied in order to reduce water hammer in the water supply to the
humidifier.
•
Duringinstallation,takecarenottodamagetheplasticthreadonthesolenoidvalve.
• Hydraulic connection should offer access to the mechanical filter in the inlet solenoid valve to allow it to be cleaned.
• Connect the drainage circuit using exclusively the D40 mm (1.57 in.) pipes provided.
•
IftheAHUisexposedtoatmosphericagents,fitheatingcablestothewatersupplyanddischargepipes.
5.2.1 Water specifications
• Water pressure between 0.02...1 MPa (0.2...10 bar) inclusive;
•
Temperaturebetween1...50°C(33.8...122°F)inclusive;
•
Conductivitybetween75...1250μS/cminclusive;
• Maximum water hardness between 5...50 °f.
NOTE
:higherwaterhardnessorahigherleveloforganicmatterdoesnotprecludeproperequipmentoperation,nevertheless
these factors mean that more frequent maintenance will be required.
What should you do?
• L
etthewaterflowthroughthedrainforafewhoursbeforemakingthefinalconnection.
•
Checktheretentionstatusofthehydrauliccircuitregularlytopreventfaultsandconsequentwaterleakageintotheroom.
•
Mak
e su
rethehydraulicunitisalwaysinstalledwithinacondensatecollectiontankwithdrainage.
What should you NOT do?
• Soften the water. If
thewaterhardnessisover50°forifthehardnesslevelrequiresfrequentmaintenance,use
demineralisedwatermixedwithdrinkingwaterinapercentagethatensuresminimumconductivityof200μS/cmand
hardness of at least 10 °f
;
NOTICE
MALFUNCTIONING OF THE EQUIPMENT
• Do not use softened water.
•
Oncethehumidifierhasbeeninstalled,lettheremainingwaterinthepipesflowouttopreventthefilterfrombecomingclogged.
•
Makesurethehumidifierpartsareperfectlyintact.
•
Ifanyofthehumidifierpartsarenotintact,donotproceedwithinstallation.
