D1EH036A46FE York 3 Ton Unit Replacement Parts

view enlarged image in modal windowD1EH036A46FE 3 Ton Unit

Manufacturer
York Replacement Parts

Model Number
D1EH036A46FE

Description
3 Ton Unit

Parts List

CategoryPart NumberDescriptionDemand
AccumulatorS1-02625573002
York Accumulator,suction,7/8-inch Id,125 Oz
Bracket, Flange, BladeS1-07322912000
York Angle, Motor Bracket
S1-07323076000
York Angle,blower Housing
Pump, MotorS1-07322914000
York Angle,motor Adjust
BafflesS1-07324690000
York Baffle,air Flow
BafflesS1-07328099000
York Baffle,flue Hood,1/2 Module,25/30t
BafflesS1-07328137000
York Baffle,flue Hood,1/2 Module/modulating
BafflesS1-07328097000
York Baffle,flue Hood,2 Mdl/modulating,25/30t
BafflesS1-07328138000
York Baffle,flue Hood,2 Module/modulating
S1-02908786700
York Ball Joint
S1-02539913000
York Bar3/8 X 3/8 X 34 Lg Stainless Stl
BearingS1-02908623700
York Bearing,rubber Cartridge, 1-Inch
BladeS1-07327267000
York Blade,damper,5.25 Wd X 30.69 L
Fuse, Thermal Fuse, BreakerS1-02520573000
York Blockterminal 3-Pole
HousingS1-02645753000
York Blower Assembly W/ Housing,wheel,shaft And Brngs
Fan & Blower MotorsS1-02638612000
York Blower Assembly With Housingwheelshaft
Fan & Blower MotorsS1-02427526000
York Blower Motor151800/1rev230/460-3-60
Fan & Blower MotorsS1-02419623717
York Blower Motor3.01725/1208-230/460
Fan & Blower MotorsS1-02425987001
York Blower Motor3/41075/3ccw460-1-60
PlateS1-07316332001
York Blower Plate
Fan & Blower MotorsS1-02642528000
York Blw,venter,2 Speed,ccw
ControlS1-03101264002
York Board,cntrl,fan/electric HeatY
BoardS1-03101997000
York Boardcntrl Simplicity Elite Millennium
ControlS1-33109150001
York Boardcntrlkitsimplicity 1A 2 Stg Hp
ScrewS1-5882
York Bolt,hex Head,1/2-13x1-1/2in,zinc,gr5
ScrewS1-02118363000
York Bolthex Head3/8-16 X 5.500 Lg
S1-331691
York Box,collector,assembly,gen2,milennium
Bracket, Flange, BladeS1-07323036000
York Bracket Hinge
Bracket, Flange, BladeS1-02918448000
York Bracket,blade,damper With Pivot
HolderS1-07325983000
York Bracket,blower Support
Bracket, Flange, BladeS1-02922147000
York Bracket,damper Blade
LatchS1-07319224000
York Bracket,door Latch
HolderS1-07328134000
York Bracket,heat Exchanger Tube Support Top
Bracket, Flange, BladeS1-07322795000
York Bracket,hinge,dual
Bracket, Flange, BladeS1-07323059000
York Bracket,hinge,leafed
Bracket, Flange, BladeS1-07322796000
York Bracket,hinge,single
Bracket, Flange, BladeS1-07323058000
York Bracket,hinge,upper Control
Bracket, Flange, BladeS1-07327268000
York Bracket,jack Shaft
Bracket, Flange, BladeS1-07319226000
York Bracket,latch
Bracket, Flange, BladeS1-02634756000
York Bracket,mount,motor,belly Band
Bracket, Flange, BladeS1-07322602000
York Bracket,rail Corner
Valves, Solenoids & FittingsS1-07317384000
York Bracket,service Valve
Bracket, Flange, BladeS1-02613359000
York Bracketbearinglau 01443102X
S1-02924447000
York Brnr,gas
Valves, Solenoids & FittingsS1-02208969000
York Bulkhead Valve Stem
BearingS1-02812082700
York Bushing B X 1-5/8
BearingS1-02813332000
York Bushing With Key 1.438 Bore
BearingS1-02812082000
York Bushing,b Type,3/8 X 3/16
BearingS1-8221
York Bushing,snap Sb1250-16,id1.0, Od1.36 In
BearingS1-02316307000
York Bushingbronze 1.0 X 0.75
BearingS1-02522674000
York Bushingsnap
WireS1-02527642000
York Cable Strapblack
WireS1-02530396000
York Cable Straptie Baseblack.7.5 Lg
IgnitionS1-02541286000
York Cbl,ignition 52-Inch
BeakerS1-02434578000
York Circuit Breaker 12A250v1 Pole
BeakerS1-02427517000
York Circuit Breaker 20A250v1 Pole
BeakerS1-02434532000
York Circuit Breaker 3.2A250v1 Po
ContactorsS1-02427531000
York Cntctr 1 Pole W/shunt30a24vY
S1-5992115
York Cntrl,pres,refrig,300/360(o/c)flare,psig
S1-5994063
York Cntrl,pres,refrig,7/22(o/c)braze,psig
Temperature ControlsS1-03101954000
York Cntrl,time/temp Defrost Ut
SwitchS1-6004503
York Cntrlpresrefrig405/265(o/c)brazepsig
SwitchS1-5992116
York Cntrlpresrefrig625/525(o/c)flarepsig
GuardS1-02645764000
York Coil Guard,20.50 X 58.32,Black
CoilS1-37327290000
York Coil,condenser,sys 1 & 3,25T,r410
CoilS1-37322979003
York Coil,condenser,sys 1,Vertical,bp150
CoilS1-37327291000
York Coil,condenser,sys 2 & 4,25T,r410
CoilS1-37322980003
York Coil,condenser,sys 2,Slanted,bp150
Compressor - Sealed SystemS1-ZR32K5E-TFD-800
York Compressor,zr32k5e-tfd-800
Compressor - Sealed SystemS1-01503871004
York Compressorhlh068t2lc6
Compressor - Sealed SystemS1-01505064004
York Compressorhlp075t2lc6poe
S1-01505218004
York Comprscroll208/230-3-60r-410apoe
Fan & Blower MotorsS1-02425121700
York Condenser Motor1/4850/1cw460-1-60
Pump, MotorS1-6008079
York Condenser Motor3/41110cwle208/230
Valves, Solenoids & FittingsS1-7311
York Conduit,fitting,3/4 In,str Sheath
ConnectorS1-02918438000
York Connector,pivot,steel Plated Brass,1/4in
ContactorsS1-02424101700
York Contactor 2Pno20a24v
ContactorsS1-02426051000
York Contactor 3Pno6a24v
ContactorsS1-5882872
York Contactor,3p,30a,24v,50/60hz
ContactorsS1-5882873
York Contactor,3p,40a,24v,50/60hz
ControlS1-03109187000
York Control Board, Spark,sgl Stage Ht,-40/+176
ControlS1-02425986000
York Control Relay22vspst
ControlS1-02424116000
York Control Relay24v50/60 Hzspdt
Temperature ControlsS1-ICM401
York Control,monitor,voltage,190-600v
ControlS1-32435741000
York Controller,vfd,10hp,208/230v,w/label
ControlS1-32435742000
York Controller,vfd,15hp,208/230v,w
ControlS1-02435741000
York Controllervfd10hp208/230v
ControlS1-02530249700
York Controlpressure Refriglow7/22(o/c
ControlS1-02539908000
York Controlpressurerefrig300/360(o/c) Psi
Pressure Relief ControlsS1-5992114
York Controlpressurerefrig50/71(o/c) Psig
ControlS1-02535356000
York Controlpressurerefrighigh405/265(o/c
Temperature ControlsS1-02538728000
York Controlpressurerefrighigh625/500
ControlS1-02535383000
York Controltemp55 Open31 Closespst Defro
Thermostats & High LimitsS1-02538901000
York Controltemp55 Open45 Closespst
Valves, Solenoids & FittingsS1-02202475700
York Corevalvev Port (M10)
PanelS1-02543260000
York Cover,convenience Outlet W/gas
PanelS1-37326322001
York Cover,duct
PanelS1-37314853000
York Cover,duct
PanelS1-07328140000
York Cover,flue Hood,12 Mod
PanelS1-03200181000
York Cover,header,bottom Plastic
PanelS1-02531977000
York Coverdisconnect
S1-02920099000
York Crossovergas 180/300
Valves, Solenoids & FittingsS1-02623209000
York Distr Assembly,2 Tube,3/8 X 3/8,1.31-Inch
S1-02621486000
York Distributor Body
OrificesS1-02206844155
York Distributor10 Ckt#112 Orifice10feed
Valves, Solenoids & FittingsS1-02206844152
York Distributor10 Tube #96
HandleS1-02922122000
York Door Handle, 1 Exposed Thread,b
Doors & HardwareS1-37328113000
York Door,2 Module,25/30t
Door,Remote Control DoorS1-07322605000
York Door,access,control Box Or Fil
S1-07322603000
York Door,heat Access
Doors & HardwareS1-37322603000
York Door,heat Access,w/insul
Doors & HardwareS1-37328324000
York Door,w/insul & Liner
PanS1-03200184000
York Drain Pan
PanS1-03200139002
York Drain Pan
Belt, PulleyS1-02812424700
York Drive Belt A54 Pl55.3
Belt, PulleyS1-02814709000
York Drive Belt, Bx56,pl57.8
S1-366089
York Duct,flue,assembly,gen2,millennium
CoilS1-37317165150
York Evaporator Coil, 30T,3 Row W/hgbp
CoilS1-37320353401
York Evaporator Coil, D_em024-036,tin Coat
Fan BladeS1-02635587000
York Fanprop24-inch Cw3-311/2-inch Bore
FilterS1-02651426000
York Filter,2x16x25,merv2
FilterS1-02634682000
York Filter,air,pleated 16X25x6 95% Eff (M2)
FilterS1-02634686000
York Filter,air,pleated 20X25x6 95% Eff (M2)
FilterS1-02603616000
York Filter,air,throw-away 16 X 25 X 2
FilterS1-02601730000
York Filter,air,throw-away 20 X 25 X 2
FilterS1-404101
York Filter-drier,hpc 3/8 Odf,18 SqY
FilterS1-400329
York Filter-drier,liquid 3/8 Odf,15
S1-52635463000
York Filter-drier,liquid 3/8 Odf,15 Sq In In
FilterS1-401023
York Filter-drier,liquid,c-164-s
Valves, Solenoids & FittingsS1-02316881000
York Fittingair Pressure Tap5/16 Hex
Valves, Solenoids & FittingsS1-02316384000
York Fittingcopper Solder
FrameS1-02922123000
York Frame,filter Bag,slide 89.5-Inch Long
Temperature ControlsS1-02541330000
York Freezestat26/38(o/c)w/hrnsp
Fuse, Thermal Fuse, BreakerS1-02532733001
York Fuse 30 Amp 600V
Fuse, Thermal Fuse, BreakerS1-02515491900
York Fuse 35A 250V
Fuse, Thermal Fuse, BreakerS1-02526336000
York Fuse 50A 250V
Fuse, Thermal Fuse, BreakerS1-02518539000
York Fuse 70A 250V
Fuse, Thermal Fuse, BreakerS1-02504649900
York Fuse Cartridge 30A 250V
Fuse, Thermal Fuse, BreakerS1-02517407000
York Fuse Holder1 Pole30 Amp600v
Fuse, Thermal Fuse, BreakerS1-02518283000
York Fuse Holder3 Pole60 Amp250v
Fuse, Thermal Fuse, BreakerS1-FRNR30
York Fuse,buss,fusetron,250v,30a (M10)
Fuse, Thermal Fuse, BreakerS1-FRNR35
York Fuse,buss,fusetron,250v,35a (M10)
Fuse, Thermal Fuse, BreakerS1-FRNR50
York Fuse,buss,fusetron,250v,50a (M10)
Fuse, Thermal Fuse, BreakerS1-02527750000
York Fusedual1.5 Amp600v (M10)
Fuse, Thermal Fuse, BreakerS1-02532731001
York Fusetime Delay600v4a
RubberS1-02813344000
York Grommet,rubber
GuardS1-02634709000
York Guard,coil,formed 37.25 X 29.75 Black
GuardS1-02634608000
York Guard,coil,side 22.25 X 29.75 Black
GuardS1-02633381001
York Guard,fan 22-Inch ,W/ Motor Mount,black
GuardS1-02634562000
York Guard,fan 24-Inch Black
GuardS1-02647779000
York Guard,fan,24-inch,black,raised
GuardS1-02642519000
York Guard,fan,27.50 X 56.00 Black
GuardS1-02646742000
York Guardfan 22-Inchw/ Motor Mountblack
GuideS1-07323077000
York Guide,blower Rail,left
GuideS1-07323078000
York Guide,blower Rail,right
HandleS1-02926842000
York Handle,w/backplate
WireS1-02526387017
York Harness W/plugcond Mtr 138-Inch
S1-02540991000
York Harness,wire
WireS1-02541424000
York Harness,wire 25/30 Ton Ic1-p2 Non Mod
S1-02541429000
York Harness,wire,30 Ic2-p1non Mod,sim
S1-02541438000
York Harness,wire,30/40 Ic1-p1 Non Mod,si Mod,si
Pump, MotorS1-02538606000
York Harnessmotor174-inch Long
Pump, MotorS1-02538607000
York Harnessmotor180-inch Long
Pump, MotorS1-02538605000
York Harnessmotor205-inch Long
WireS1-02540992000
York Harnesswire
WireS1-02538922618
York Harnesswire
WireS1-02538922603
York Harnesswire
WireS1-02538922602
York Harnesswire
WireS1-02538922604
York Harnesswire P15
S1-37320343050
York Header,suction,d_eb036
S1-37328117000
York Heat Exchanger,5 Cell
Heating ElementS1-02537420240
York Heaterccband70w240v21.8-2
ScrewS1-02102523000
York Hex Nut
HingeS1-02922171000
York Hinge 4-Inch
HingeS1-02922174000
York Hinge, 4-Inch .12 Pin
S1-37314999001
York Hsg,blower, 10 Dia X 8
IgnitionS1-02532661001
York Ignitorspark
LabelS1-03521648000
York Label,fc102 Parameter
LatchS1-02921185000
York Latch,door,safety
SwitchS1-02531814000
York Limit Switch150/120(o/c)auto
SwitchS1-02535362000
York Limit Switch200/170(o/c)auto
SpacerS1-02108697000
York Lockwasherhlcl Spring5/16
InletS1-02924457000
York Manifold,gas Inlet,2 Cell
S1-02924448000
York Manifold,gas,226k Btu
Pump, MotorS1-02812414700
York Motor Hanger Neoprene Isolator
ActuatorS1-02537401000
York Motoractuator24vbelimo
Bracket, Flange, BladeS1-07323075000
York Mount,blower Motor,predator
S1-32631480000
York Mount,motor Assembly
Pump, MotorS1-02634581000
York Mount,motor,56 Fr,wireform
Pump, MotorS1-32649687000
York Mount,motor,kit
Pump, MotorS1-02635590000
York Mountmotor Arm
Fan & Blower MotorsS1-02432068001
York Mtrcond1.251140/1208/230-3-60
ScrewS1-36390117700
York Nut,acorn Kit #8-32 Unc
ScrewS1-02100467000
York Nuthex 3/8-16 .562 Waf
OrificesS1-02924455000
York Orifice,gas,burner #29 (0.136)
OrificesS1-02920422062
York Orifice,pilot #62 (.038)
OutletS1-02531987000
York Outletconvenience
PanS1-02642615000
York Pan,drain,sst,millennium
PanelS1-07315239000
York Panel, Coil Side
PanelS1-07316330001
York Panel,access,30-inch
PanelS1-37318640001
York Panel,access,blower 30-Inch
PanelS1-37316331001
York Panel,access,control 30-Inch
PanelS1-07322604000
York Panel,blower Access,no Insul
PanelS1-07338775000
York Panel,condenser,duct Side,tall
PanS1-07338774000
York Panel,condenser,srv Side,tall
PanelS1-37326366000
York Panel,economizer End,upper,insul
PanelS1-07344649000
York Panel,economizer,split
S1-07326366000
York Panel,economizer,upper,no Insu
PanelS1-07316149000
York Panel,hood Side Left Hand
PanelS1-07316148000
York Panel,hood Side Right Hand
PanelS1-07316150000
York Panel,hood Top
PanelS1-37326696000
York Panel,no-economizer,lower,insul
PanelS1-07315906000
York Panel,roof
PanelS1-07315243000
York Panel,roof Fandeck,2 Openings
PanelS1-07315905000
York Panel,roof Heat Section
PanelS1-07315907000
York Panel,roof Power Exhaust End
PanelS1-07321998000
York Paneltop Cond Coil7.5 T
S1-02924408000
York Pin,hinge,black Plastic
PinS1-02922199000
York Pinhingebrass1.563 Lg
S1-02918439000
York Pivot,brass
DamperS1-02637495000
York Pivot,damper Blade
PlateS1-333138
York Plate,balance,hx,gen2,millennium
PanS1-07322898000
York Plate,blockoff,drain Pan
PlateS1-07317143000
York Plate,blockoff,gas
PlateS1-331832
York Plate,collector,hx,gen2,millennium
PanS1-07344653000
York Plate,cover,drain Pan
PanelS1-07322964000
York Plate,cover,outlet
LatchS1-07319225000
York Plate,door Latch
Valves, Solenoids & FittingsS1-07321249000
York Plate,drain Fitting
PlateS1-07301920000
York Plate,latch
PlateS1-07323041000
York Plate,latch (Oblong)
PlateS1-07322913000
York Plate,mount,motor
PlateS1-07322688001
York Plate,patch,no Disconnect
PlateS1-331977
York Plate,shoot Through,hx,gen2,millennium
PlugS1-02813374000
York Plug,2.00id,.25l
PanS1-02812480001
York Plug,drain Pan
PlugS1-02812480000
York Plug,drain Pan,plastic Bottom
S1-07328976000
York Post W/louvers,25-40 Ton Gas Ht Section
S1-07316327001
York Post,center,left Hand Side,30-inch
CoilS1-07316328001
York Post,coil,center,right Hand Side,30-inch
Compressor - Sealed SystemS1-07315234000
York Post,corner Compressor End Front & Rear
PanelS1-07316329001
York Post,left Front Cover
S1-02425975000
York Pressure Switch Air, 0.33 Iwc On Rise,spno
Fan BladeS1-02634009000
York Propeller Fan,22-inch ,Cw,2-24,1/2-inch Bore
Fan BladeS1-02638027000
York Propeller Fan,24-inch ,Cw,4-36,5/8-inch Bore
RackS1-07324694000
York Rack,filter
RailS1-07319414000
York Rail,base,back
CoilS1-07328027000
York Rail,base,back,condenser
RailS1-07328028000
York Rail,base,back,evaporator
RailS1-07322592000
York Rail,base,cond End
RailS1-07345151000
York Rail,base,evap End
RailS1-07322601000
York Rail,base,evap End
RailS1-07319413000
York Rail,base,front
CoilS1-07328029000
York Rail,base,front,condenser
RailS1-07328030000
York Rail,base,front,evaporator
RailS1-07322591000
York Rail,base,front/rear
RailS1-07319415000
York Rail,base,side
RailS1-07323074000
York Rail,side,blower
RailS1-02535343000
York Railmountingdincondenser Fan Contact
CoilS1-07322581000
York Roof,condenser
PanelS1-07331187000
York Roof,condenser,pred,with 2 Rd. Fan
PanelS1-37322593000
York Roof,evaporator
OrificesS1-37319411002
York Roof,unit,4-inch High Orifice,hp & Cool
FilterS1-02642527000
York Screen,flue Outlet,wiremesh,8.7x6.25
ScrewS1-02117305000
York Screw#10-16 X 0.5 Torque Cntl
ScrewS1-5829
York Screw,ab Thread,hex Head,1/4 -14
ScrewS1-5817
York Screw,f Thread,pan Head,10-24
ScrewS1-5920
York Screw,tap,thread,hex W/seal,10-16x1/2
ScrewS1-02117116000
York Screw5/16-18x1-3/4hex Hdw/sleeve
ScrewS1-02118347000
York Screwseal #10-16 X 5/8W/gasket
Gasket , SealS1-02921187000
York Seal,blade,damper 25-5/8-Inch Long
ProbeS1-03109129000
York Sensor,supply Temperature
ProbeS1-02532661002
York Sensorflame
ProbeS1-03109134000
York Sensorpress2651-005wd-ab-t1-cvav-dpt
ProbeS1-03109130000
York Sensortempoutside/return/supply Air
ShaftS1-06370930000
York Shaft 1 X 23
Belt, PulleyS1-02813273000
York Sheave,fixed,split Taper 2 Grv,2b5v136
Belt, PulleyS1-02813271000
York Sheave,fixed,split Taper 2 Grv,2b5v60
Belt, PulleyS1-02813379000
York Sheavefixed 1 Grv1 Boreak74
Belt, PulleyS1-02804807700
York Sheavevariable 1 Grv0.875-inch Bore1vm50
Valves, Solenoids & FittingsS1-02208017000
York Stemvalve
WireS1-02527643000
York Strapcabletie Baseblack
HolderS1-07322516000
York Supportcentercond Roof
S1-02435690000
York Switch,bypass,cy032
SwitchS1-02544171000
York Switch,disconnect,3 Pole,250a,600v
S1-02427557000
York Switch,pres,air 0.26 Iwc On Rise,spno
SwitchS1-02435799000
York Switchaux1 No/1 Nc #6-32 Terminals
SwitchS1-02435798000
York Switchaux1 Spdt W/.250 Qc Terminals
SwitchS1-02439490000
York Switchpresair -.21 Iwc On Risespno
SwitchS1-02439479000
York Switchpressure-.33 Iwc
SwitchS1-02436327000
York Switchrotary600v40amp
FilterS1-07321804000
York Tab,filter Removal (2 Req'd)
ControlS1-02426099000
York Temperature Control180 Openmanual Rese
TerminalS1-02541186000
York Terminal Block12 Pole30 Amp600v
TerminalS1-02532770000
York Terminal Block2 Pole
Valves, Solenoids & FittingsS1-02540977000
York Thermal Expan Vlv-distr9 Tube#gr4 Orif
ClampS1-02110326000
York Tinnerman Clip
Door,Remote Control DoorS1-02922121000
York Tongue,door Latch Slide
TransformerS1-02525973700
York Transformer208/230v24v/75va50/60h
TransformerS1-02537431001
York Transformer208/230v24v250va60hz
TransformerS1-02533469000
York Transformer208/240/480v24v/75va50
TransformerS1-02532672240
York Transformer208/240120v
TransformerS1-02525974700
York Transformer460v24v/75va50/60hz
Hoses, Pipes & TubingS1-02809412001
York Tube,isolator Rubber
Hoses, Pipes & TubingS1-02811957001
York Tubing,0.125 Id,clear Silicone
S1-02811957000
York Tubing,0.125 Id,clear Silicone Rubber
Valves, Solenoids & FittingsS1-02541280000
York Valve,gas,natural Gas,sgl Stage,3/4x3/4
Valves, Solenoids & FittingsS1-02209099000
York Valvecheckmagnetic
Valves, Solenoids & FittingsS1-02211548000
York Valvehot Gas Bypass345tr410a
Valves, Solenoids & FittingsS1-02535389002
York Valvereversing With Coil
Valves, Solenoids & FittingsS1-02209098000
York Valvetx Valve W/distributor1/2odf X 3/
S1-07322693000
York Wall,condenser,duct Side
S1-07322692000
York Wall,condenser,service Side
S1-37326321001
York Wall,duct Air Entry
FilterS1-07322588000
York Wall,filter/control Service
S1-07322587000
York Wall,heat Service
SpacerS1-5720
York Washer,lock,helical,1/2in,zinc
SpacerS1-5723
York Washer,lock,helical,3/8in,zinc
SpacerS1-02809412002
York Washer,neoprene
SpacerS1-02109983000
York Washerflat3/8 Id
SpacerS1-02101267000
York Washerplain.437 Id X 1.000 Od X .083 T
Fan BladeS1-02632088702
York Wheel,blower,10 X 8,Cw,1/2 Bore
Fan BladeS1-02625529704
York Whlblw15 X 15Rev1 Bore
WireS1-02541437000
York Wire Harness,30/40 Ton Ic2-p2 Non Mod
WireS1-02541468000
York Wire Harness,motor
WireS1-02535366009
York Wire Harnessjumperred4-pinno Smk Det
WireS1-02535366012
York Wire Harnessp9
WireS1-02541413000
York Wiring Harness
WireS1-02538922619
York Wiring Harness
WireS1-02535366014
York Wiring Harness
WireS1-02538922620
York Wiring Harnessp7
HoodS1-07328133000
York Wrapper,flue Hood,2 Module,30t
ContactorsS1-02435800000
York York S1-02435800000 Cntctr,3p,40 Amp,24v,50/60hz