COMAC ARJ21-700 - External Air Conditioning Facility - Connection Procedure

ARJ21-SVV19-13120-00
RampServicingOperation
Instruction
Externalairconditioningfacility-ConnectionProcedure
1.CommonInformation
A.Makesurethatthegroundairsourceisnormalandthelowpressuregroundconnectionoperates
correctly.
B.WhenARJ21-700aircraftissuppliedwithlowpressuregroundairsource,makesurethattheair
supplyparametersmeettheserequirements:
(1)Airsupplytemperature:3℃-70℃(37.4℉-158℉)
Airsuppliedow:doesnotabove38.6kg/min(85lbm/min),
Airsupplypressure:doesnotexceed0.45psi(gagepressure3.1kPa).
2.PreliminaryRequirements
WorkZones
ZoneLocation
213Cockpit-Left
214Cockpit-Right
166RecirculationFanCompartment-Right
AccessPanels
NumberName
162ARWGroundlow-pressureA/Cdoor
ConsumableMaterials
ReferenceNameRemarks
08-102AdhesivetapeNull
(Opt:18-099)(Opt:Strap)
3.Procedures
A.Preparation
CAUTION:WHENUSINGGROUNDAIRSOURCETOSUPPLYAIR,MAKESURETHERECIR-
CULATIONSYSTEMISCLOSED,OTHERWISE,ITCANCAUSEDAMAGETOEQUIP-
MENT.
(1)MakesurethattheLandRPACKpushbuttons,theRECIRCpushbuttonandtheTRIMpushbut-
tonontheAIRCONDITIONcontrolpanelareoff.Conrmwithmaintenancepersonnelbefore
connecttheairconditioning.
(2):Aftermaintenancepersonneagrees,openthis(these)accesspanel(s):Groundlow-pressure
A/Cdoor162ARW
(3)Openthegroundpneumaticinterfacecap.
CAUTION:WHENAIRCRAFTISSUPPLIEDWITHLOWPRESSUREGROUNDAIRSOURCE,
THEBLOCKINGCOVEROFTHEGROUNDAIRSOURCEINTERFACEISHUNG
ARJ21-A-13-12-17-01A-730A-A
Issue001,2023-01-29
Applicableto:ALL
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