AERMEC Variable Multi Flow ANL Series - System Charging; System Draining; Unit Draining

22
18.03. 5719210_03
ANL / 290-650
EN
 
Beforecommencingthechargingprocedureposition
themainisolatoroftheunitintheOFFposition.
1. Ensurethatthesystemdrainvalveisclosed
2. Openallthesystemairventsandoftheterminal
units
3. Openthesystemisolatingvalves
4. Startfillingslowlyopeningthesystemwater
chargingvalveexternaltotheunit
5. Whenwaterexitstheterminalunitsairvents
closethemandcontinuecharginguntilthe
requiredsystemoperatingpressureisreached.
 
1. Beforecommencingdrainingthedrainingproce-
durepositionthemainisolatoroftheunitinthe
OFFposition
2. Ensurethesystemwaterchargingvalveisclosed
3. Openthesystemdrainvalveexternaltotheunit
andallthesystemairventsandoftheterminal
units.
 
WARNING
Duringthewinterperiodthewaterintheheat
exchangermayfreezewhenthesystemisoff,causing
irreversibledamagetotheheatexchanger.
Therearethreesolutionstoavoidtheriskoffreezing
1. Completedrainingofwaterfromtheunit.
2. Operatingwithglycol,withapercentageofglycol
selectedinaccordancewiththeminimumantici
-
patedexternaltemperature.
3. Useofelectricheaters.
Insuchcasestheelectricheatersmustalwayshave
poweravailableforthewholeperiodofpossible
freezing(unitinstand-by)
WARNING
Confirmthehydraulicintegrityof
thejoints.
WARNING






WARNING
Ifthesystemcontainsandanti-
freezethismustnotbedischarged
tothedrainsastheliquidmaybe
apollutant.

