COMAC ARJ21-700 - Potable Water System - Fill Water

ARJ21-SVV19-13120-00
RampServicingOperation
Instruction
Potablewatersystem-Fillwater
1.CommonInformation
A.Thisprocedureprovidestheoperatingproceduresofaircraftpotablewater.
B.ThecapabilityoftheARJ21aircraftpotablewatertankis83L.
C.Thewatersysteminterfacepanelisacontrolinterfaceformaintenanceandgroundservicepersonnel
tooperatewatersystem,watertankllinganddraincontrollinginterfaceandsystemfaultdisplay
interface.Thereareoneeight-knobswitchandveindicatorlightsonthecontrolpanel.
Table1Gradeandcorrespondingfunction
GradeFUNCTIONANDUSAGE
FLIGHTREADYT akeOFF
FILLFULLFILLFULL
FILL3/4FILL3/4
FILL1/2FILL1/2
FILL1/4FILL1/4
PIPEDRAINPIPEDRAIN
TANKDRAINTANKDRAIN
LAMPTESTLAMPTEST
Table2IndicatorLightandcorrespondingindicating
IndicatorLightMeaning
1/4annunciatorTurntheknobtoFILL1/4position.Whenthe
potablewatertankislledto1/4position,the
indicatorlightcomesontonotifythegroundcrew
ofthecompletionoflling1/4water.
1/2annunciatorindicatingthat1/2waterislledandtheprincipleis
thesameasthatof1/4annunciator
3/4annunciatorindicatingthat3/4waterislledandtheprincipleis
thesameasthatof1/4annunciator
FULLindicatingthatfullwaterislledandtheprincipleis
thesameasthatof1/4annunciator
FAULTFAULTannunciatorcomesonwhenthesystem
hasafault
2.PreliminaryRequirements
WorkZones
ARJ21-A-13-12-22-01A-216A-A
Issue001,2023-01-29
Applicableto:ALL
Page1of3