Airwell AWAU-YCV080-H11 User manual

AWAU-YCV080-H11
AWAU-B-YCV150-H13
AWAU-YCV180-H13
No. 0150510082
Pleasereadthismanualcarefullybeforeusing
Keepthisoperationmanualforfuturereference

To use the airconditionernormally, pleaseperformastothe below conditions.
FlowLogicII series adopts"simultaneous
control"type, allindoorsshouldbe heating
orcooling simultaneously.
Toprotectcompressor,beforestartup,
the unitshould be electrified for over 12
hours.If the unitisnot used foralong
time,pleasecutoff the powertosave
energy,orthe unitwillconsume the power.
cooling
dry
heating
indoor
outdoor
indoor
outdoor
max.
min.
max.
min.
max.
min.
max.
min.
DB: 32
WB: 15.5
DB: 18
DB: 43
DB: -5
DB: 27
DB: 15
DB: 21
DB: -15
WB: 23
WB: 14
WB: 26
Operating RangeofAirConditioner
1-2
3-4
5-13
14-15
16-22
23-24
25-26
whole model brief model
AWAU-YCV080-H11 YCV080
AWAU-YCV180-H13 YCV180
The brief modelisused inthismanualforabove models.
27
AWAU-B-YCV150-H13 B-YCV150
UserManual
CONTENT
Safetyprecaution
Installation instruction
Installation procedure
Trialoperation and the performance
Electricwiring and theapplication
Methodof installation and trialrun
Failurecode
Disposal
Operationcondition:

If theairconditioneristransferredto theothers, thismanualshould be tranferredtogether.
!WARNING
The installation orthe maintenance shouldbe performed bythe authorized agency. Or the
non-specialized operation willcausewaterleakage,electricshockorfire etcaccidents.
The installation shouldbe executedasperthe manual, orthe faultyinstallation willcause
waterleakage, electricshockorfire etcaccidents.
Please installtheunit at thespacewhich can beartheweight. Or the unit willdropdown to
cause thehuman injury.
The installation shoulddefend against the typhoon, andthe earthquakeetc.Abnormal
installation willcausethe unit falldown.
Use thecorrect cableandmake reliable earthing. Fixtheterminalfirmlyand theloose
connection willcause heatingorfire etcaccident.
The wiringshould bein shape and can not be raised. Beearthedfirmlyand can not beclipped
bythe electricboxcoverorthe otherplate. The incorrect installation willcause heating orfire.
When setting ortransferring theunit, thereshouldnot be otherairinto the refrigerant system
except forR410A.The gasmixture willcause the abnormalhigh pressurewhich willcause
breakorhumaninjury etcaccidents.
When installation, please usethe accessorieswith the unit orthespecialparts, orit willcause
waterleakage, electricshock, fire, refrigerant leakage etcaccidents.
Don't lead the waterdrainagepipe into the drainage groove with thepoisonousgas, such as
sulphur. Orthe poisonousgaswillenterindoor.
In installation orafterinstallation, please confirm if there isrefriegerant leakage, please take
measuresforventilation. The refrigerant willcause poisonousgasasmeeting fire.
Don't installtheunit at the placewhere there maybe flammablegasleakage. Incase the gas
leaksand gatheraround theunit, it willcause fire.
The drainage pipeshould be installedasperthe manualtoconfirm the fluent drainage. Also
take measuresforheat insulation against dew drop. Incorrect waterpipeinstallation willcause
waterleakage even and makethe thingswet.
Forthe liquid pipe and thegaspipe, take measuresforheat insulation too. If thereisno heat
insulation,the dew drop willwet the things.
Before installation, please read "Safetyprecaution"carefullyto confirm thecorrect installation.
The mentioned precaustion includes"!WARNING"and "!CAUTION".Theprecausioncaused
death orheavyinjuryforfaultyinstallation willbe listed in "!WARNING". Even the cautions
listed in "!CAUTION"also maycause seriousaccident. So bothof them are relatedto the
safety, and should be executed severely.
Afterinstallation, perform atrialandconfirm everything normal, then introducethe operation
manualto the user. Besides, put the manualto theuserand askthemto preserve itcarefully.
1
Thisappliance isnot intended forusebypersons(includingchildren)withreducedphysical,
sensoryormentalcapabilities, orlack of experience and knowledge, unlesstheyhavebeen
given supervisionorinstruction concerning use of the appliance bya personresponsible for
theirsafety.
Children should besupervised to ensurethat theydo not playwith the appliance.
Safetyprecaution

!
2
CAUTION
Execute earthing forthe unit. But the earthing wire can not be connected to the gaspipe, water
pipe, lighteningrod orthetelephone earthingwire. Improperearthing willcauseelectricshock.
Don't installtheunit at the placewhere leaks the flammable gas. Or it willcausefire.
Execute the waterdrainage pipe according to the manual,improperinstallation willcause water
leakage towet the familythings.
Theoutdoorfancannot faceto theflowerortheothervegetable, ortheblowinggaswill make
theflowerdriedup.
Please ensurethe maintenanceroom, if not,it willcausethe maintenanceperson damaged.
When installingtheunitontheroofortheotherhighplace,to preventthe personfalling down,
please set thefixed ladderandthe railing at the passage.
Usethe two-endspanner, andfasten thenut atpropertorque. Don't fasten the nut excessively
against the flared setion broken. Or it willcause refrigerant leakageand lackof oxygen.
Takemeasuresforheat insulation to the refrigerant pipe, ortherewillbewaterleakageordew
dropto wet the familythings.
Afterfinishing therefrigerant pipe,makeleakage testbychargingthe nitrogen. In casethe
refrigerant leaksinasmall room and exceedsthelimited concentration,itwillcauselackof
oxygen.
Don't usethe otherrefrigerant except forR410A.TheR410Apressureis1.6timeshigherthan
R22pressure. The refrigerant R410Atankismarkedwithpinksign.
Againstchargingdifferentrefrigerant,wechangedthe stopvalvediameteroftheR410Aunit.
To enhance the compression consistance, we also changed the flared pipe dimension. Prepare
theR410Aspeciallytoolsaccording tothe below table.
R410Aspecially tool
gauge manifold
torquespanner
a
b
c
d
e
f
g
range:HP 4.5MPa,LP 2MPa
pressure:HP:5.3MPa,LP:3.5MPa
can not usethe measurable charging tank
must bewithreverse stop valve
can not usefreon leakage detector, but the
He detector
Remarks
charge hose
electronicbalance for
charging R410A
flare tool
copperpipe gaugefor
adjusting projecting margin
vacuum pump adapter
leakage detector
When charging refrigerant, the refrigerant must be taken out asliquidstate from the tank.
When installing indoorunit, outdoor, powercable and connecting wire, leave them at least 1m
awayfromthe TVset ortheradioagainst interference forthe imageorthe noise.
In the roomwithfluorescent lamp(reverse phaseorrapid starttype),the remote signalmay
benot reach the pre-set distance.Thefartherthat indoorisawayfrom fluorescent lamp, the
better.
Safetyprecaution

3
If the connectedunitsquantityandthe totalcapacityisin the allowable range?
If the refrigerant pipelength isin thelimited range?
If the pipe size isproper?And if the pipeisinstalled horizontally?
If the branch pipeisinstalled horinzontallyorvertically?
If the additionalrefrigerant is counted correctlyandweighedbythe standard balance?
If there isrefrigerant leakage?
If allthe indoorpowersuppliescanbe on/off simultaneously?
If the powervoltage isincompliancewith the data marked on therating label?
If the addressof indoorshasbeen set?
indoor
capacity(100W)
outdoor
combination type indoorQty totalindoorcapacity(100W)
80
180
single
single
5
9
40-104
90-234
indoorcapacity(100W)
22
28
36
40
45
56
71
TAU335
totalindoorcapacity(100W)
lessthan335
branchpipe
(optional)
Notice:
Totalcapacitiesof indoorunitsbeing used 100%of rated capacitiesof outdoorunit
150 single 875-195
Installationinstruction
In installation, please checkspeciallythe below items:
(1)Beforeinstallation
1)Beforeinstallation, checkif the model, powersupply, pipe, wiresand partspurchased
respectively are correct.
2)Checkif the indoorsand outdoorscan becombined asthe following.

4
Air-conditionercan't be
installedintheplacewith
inflammable gas. Or it
willcause firehazard.
The unitshouldbeinstalled at the
strong enough place. Oritwillcause
vibration and noise.
The unit should be
installedat theplace
wherethe cold/hotairor
noise willnot interfere
the neighbours.
The unit isbetternot be installed
at the below places, orit will
cause damage.
The placewhere there is
corrosive gas(spa areaetc).
The placeblowing saltyair
(seaside etc).
Exsitsthestrong coalsmoke.
The placewithhigh humidity.
The placewhere there isdevice
emittingHertzian waves.
Theplacewherevoltage changes
greatly.
In transportation, pleasedon't dismantle the packaging, and movethe unit tothe installation
location ascloselyaspossible.
If the packagingmust be dismantled, hang up the unit with ropeagainst damage.
Don't hang theunit only at two points. When hangingthe unit, don't sit on the unit. Theunit
shouldbe upright.
When removing theunit withthe forklift, put the forkinto the specialhole at bottomof theunit.
When being hanged, therope shouldbe 4 piecesof steelcable withover6mmdiameter.
Put the cushionat thecontact section betweensteelcable and theunit against thedistortion
ordamage.
(3)Transportation
The place wherethe water
can flow fluently.
The place whereno other
heat source willaffect the
unit.
Payattention to the snow
againstclogging the outdoor.
In installation,install theanti-
vibrationrubberbetweenthe
unit andthe bracket.
Installationinstruction
Note:
1.The place whereoutdoorunit located must be keep out of water.
2. In snowyarea,installthe unit underthe bracket orthe snow-proof coveragainst the
accumulative snow onthe unit.
3. Do not installthe unit at the place wherethe flammable gaswillleak.
4. Installtheunit at thestrong enoughplace.
5. Installtheunit at theflat place.
6.When beinginstalled at the placewithstrong wind, set theairoutlet of theunit andthe wind
direction vertical.Also fixthe unit with thescrew.
(2)Installation placeselection
The unitshouldbe installed
atthe placewithgood
ventilation.Noobstacleat the
airinlet/outlet.And no strong
wind blowsthe unit.
Theinstallation spacerefers
to the latterinfo.

5
A.Refrigerantpipeconnection When fastening and loosingthe nut,
operate with double spanners,
becauseonlyone spannercannot
execute firmly.
If threading the nut asnot aiming
at the center, the screw thread will
bedamaged, furtherit willcause
leakage.
spanner
spanner
connector
nut
Toensure theefficiency, the pipe shouldbe
asshortaspossible.
Daubthe refrigerant oilon the connectorand
the flare nut.
When bending thepipe, thebending semi-
diametershouldbe aslarge aspossible
against thepipe beingbroken orbent.
When connecting the pipe, aim at the center
to thread thenut byhand and tightenit with
the double spanners.
Don't let theimpuritysuchassand, wateretc
into the pipe.
Pipeconnectionmethod:
1. When welding the connectorwith hard solder, charge nitrogeninto the pipe against oxidation.
Orthe oxygen filmin the pipe willclogthe capillaryand the expansion valve, even caue the
deathyaccident.
2. The refrigerant pipeshould be clean. If the waterand the otherimpurityenterthe pipe,
charge the nitrogento clean thepipe. The nitrogenshould flow underthe pressure of about
0.5Mpa and when charging the nitrogen, stop up the end of the pipe byhand toenhance the
pressureinthe pipe, then loose the hand (meanwhilestopup the otherend).
3. The piping installation shouldbe executedafterthestop valvesare closed.
4. Before welding the valve and thepipes,usethe wet cloth tocooldown the valve and the
pipes.
5. When the connection pipeand the branchpipe need to be cut down, please use thespecial
shears and cannot use the saw.
Cautions inpipinginstallation:
Pipematerialandspecs selection
1. Please select the refrigerant pipe of the below material.
Material: the phosphoric oxidizeseamlesscopper pipe, model: C1220T-1/2H (diameter is
over 19.05); C1220T-0(diameter isbelow 15.88).
2. Thicknessand specs:
Confirm the pipe thicknessand specsaccording to the pipe selection method(the unit iswith
R410A, if the pipe over 19.05 is0-type, the pressure preservation willbe bad, thus it must be
1/2H type and overthe min. thickness.
3. The branch pipe must be fromAirwell.
4. When installing the stop valve, refer to the relative operation instruction.
5. The pipe installation shouldbe in the allowablerange.
6. The installation of branch pipe and gather pipe shouldbe performed according to the relative
manual.
Installationprocedure

6
Pipespecification:
c
a a b
b
a a
1.Pipe a”diameter(between indoorand branchpipe)(dependson indoorpipe)
22~28
36~56
71
9.52* 6.35
12.7 6.35
15.88 9.52
Indoor(x100W)Gaspipe Liquid pipe
2.Pipe b”diameter(between branch pipes)
<112 15.88
19.05112 X<234
9.52
Totalindoorcapacity
afterthe branch pipe
(x100W)
9.52
Gaspipe Liquid pipe
Note:
Whenthe distance from outdoorto thelongest indoorisover30m, themain pipeshouldbe the
enlarged diameter.
3.Pipe c”diameter(outdoorpipe diameter)
Outdoorcapacity(100W)
80
180
15.88
19.05 9.52
Gaspipe Liquid pipe
9.52
Copperpipeselection:
Note: If the copperpipewithouterdiameter19.05 iscoilpipe, the thicknessshould be over1.1.
6.35 9.52 12.7 15.88
0.8 0.8 1.0 1.0
19.05 22.22 25.24 28.58
1.0 1.1 1.2 1.4
softness Half-hardnesshardness
Outerdiameter
Min. thickness
*HAV009'sgaspipeis 12.7
150 19.05 9.52
Installationprocedure

7
Longpipe andhigh drop
1.Allowablepipe lengthandheight difference
Lengthof the longest piping afterthe
first branchpipingL
g
L4
h i
LengthofthelongestpipingL
L2
L1
h10m
f
L3
a b cde
Outdoorunit
First branchpiping Indoor unit
——
——
——
Pipingpart
100m
70m
30m
30m
20m
10m
Permissiblevalue
Longest piping L
Pipinglengthof indoorunitwhich isfurthestto the
first branch piping L
Drop height between indoorand
outdoorunit H
Drop height between indoorunitsh
Totallength of piping(actuallength)
Actuallength
Upoutdoor
Underoutdoor
B-YCV150.YCV180: Maximal length and drop height permissible of refrigerant piping
L2+L3+L4+e
L1+L2+L3+L4+a
+b+c+d+e
L1+L2+L3+L4+e
——
——
——
Pipingpart
50m
35m
15m
30m
20m
10m
Permissiblevalue
Longest piping L
Pipinglengthof indoorunitwhich isfurthestto the
first branch piping L
Drop height between indoorand
outdoorunit H
Drop height between indoorunitsh
Totallength of piping(actuallength)
Actuallength
Upoutdoor
Underoutdoor
YCV080: Maximal length and drop height permissible of refrigerant piping
L2+L3+L4+e
L1+L2+L3+L4+a
+b+c+d+e
L1+L2+L3+L4+e
Installationprocedure

8
Unitpipespec andconnection method(unit:mm)
A.Outdoorunit
Model
15.88
19.05 Flaredjoint 9.52 9.52
Flared joint
Gaspipe side Liquidpipe side
Diameter Connectingmethod Diameter Connectingmethod
YCV080
YCV180
B. Indoorunit
Gaspipe side
Model
Capacity
12.7
15.88
Flaredjoint
Liquid pipe side
Diameter Connectingmethod Diameter Connecting method
24
18
16
12
09
Flaredjoint
9.52
12.7
12.7
6.35
9.52
6.35
6.35
6.35
C. Pipespecand thetorque
Not lessthan 28.58
diameter Thickness(mm)
0.8
0.8
1.0
1.0
1.0
1.2
Torque(N.m)
16~20
40~50
90~120
100~140
——
6.35
9.52
12.7
15.88
19.05
25.4 More than 1.4
1.1
22.22
Note: If the copperpipewithouterdiameter19.05 iscoilpipe, the thicknessshould be over1.1.
——
——
19.05 9.52
B-YCV150
Installationprocedure

9
Outdoorunit type
Branchpipe
totalindoorcapacity(100W) model(optional)
lessthan335 TAU335
Branchpipe selection:
Note:
1.When connecting the pipe and the
outdoor, pleasepayattention to the outdoor
pipe dimension.
2.When adjusting thediameteramong
pipesand amongthe units, please must executeat thebranch pipe side.
3.When welding with hardsolder, pleasemust blow nitrogen. If not, anumberof oxide willbe
produced and cause heavydamage.Besides,to prevent wateranddust into thepipe, please
make the brim asouterroll.
Cut off pipe with the cutter
Cut off at the middle
Adhesiveside
Prepareon field
Sealthe connectionandwrap the
heat insulatorwithadhesivetape
Installationprocedure

10
Pipinginstallation
Please don't let the pipeand the partsin the unitcollide each other.
Theconnectionbetween outdoorliquidpipeandthe distributingpipeis flared type. Please
expand the pipe with the specialtoolforR410Aafterinstalling the expanding nut. But ifthe
projecting pipelengthhasbeenadjustedwiththecopperpipegauge,you can use the original
tooltoexpand the pipe.
Since theunit iswith R410A, theexpandingoilisesteroil, not themineraloil.
Whenconnecting the pipes, closethe valvesfully.
Protect thepipe endagainstthe water,impurityintothepipes(weldingafterbeingflat,
orbeingsealed with adhesive tape).
Bend the pipe aslarge semi-diameteraspossible(over4 timesof the pipe diameter).
When connectingtheexpanding pipe, fastenthe pipeswithdouble-spanner.Thetorquerefers
to the formerinfo.
Important
A0
-0.4
6.35
9.52
12.7
15.88
9.1
13.2
16.6
19.7
Expanding pipe:A(mm)
pipe outer
diameter
Projecting lengthof pipe tobe expanded:B(mm)
6.35
9.52
12.7
15.88
when it ishardpipe
0-0.5 1.0-1.5
pipeouter
diameter specialtool
forR410A the former tool
welding adhesivetape
flat
Protect the pipe end against the water, impurityinto the pipes(welding afterbeing flat, orbeing
sealed with adhesive tape).
Sealthepipe endwith adhesive tape orthe stopper
to increasethe resistance, fillup the pipe with nitrogen.
<N2>
taping
Only nitrogen
gascanbe used brazing
The outdoorgaspipe and the refrigerant distributing pipe, aswell the refrigerantdistributing
pipe and the branch pipeshould be welded with hardsolder.
Weldthe pipe at the same time charge the nitrogen. Oritwillcauseanumberof impurity(a
film of oxidation)to clogthe capillaryand the expansion valve, furthercausethe deadly failure.
Installationprocedure

11
sourcevalve
1st side 2ndside
hand
0.2MPa
Therefrigerant pipe should be clean. The nitrogenshould flow underthe pressure of about
0.2Mpaandwhen chargingthe nitrogen, stop upthe end ofthe pipe byhand to enhance the
pressure inthe pipe, thenloosethe hand (meanwhile stop upthe otherend).
When weldingthe valveand the pipes, use thewet cloth to cooldownthe valveand the
pipes.
When connectingthe pipes, closethe valvesfully.
B.Leakagetest
1.The outdoorunit hasbeen executed theleakage test inthe factory.Afterconnecting the
distributingpipe, execute the leakage test fromthe outdoorcheckvalve and the indoor.
Besides, while testing, thevalvesshould be close.
2. Refertothe below figureto chargethe nitrogen into theunit to take atest.Neverusethe
chlorin, oxygen, flammablegasinthe leakagetest. Applypressure both onthe gaspipe andthe
liquid pipe.
3.Applythe pressure step bystep tothe target pressure.
a.Applythe pressure to 0.5MPa formorethan5 minutes, confirm ifpressure goesdown.
b.Applythe pressure to 1.5MPa formorethan5 minutes, confirm ifpressure goesdown.
c.Applythepressure tothe target pressure(4.0MPa), recordthe temp. and the pressure.
d. Leave it at 4.0MPa forover1 day, ifpressure doesnot go down, the test ispassed.
Meanwhile, when thetemp. changesfor1degree, pressurewillchange 0.01MPa aswell.
Correct the pressure.
e.Afterconfirmation of a~d, if pressure goesdown, there isleakage. Checkthe brazing
position, flared position bylaying on thesoap. modifytheleakage point and take another
leakage test.
4.Afterleakagetest, must execute theevacuation.
gauge manifold
Lo Hi
Lo handle Hihandle
nitrogen
toindoor
outdoor
gas pipe
check valve
gas pipe
check hole
Installationprocedure

12
C.Evacuation
Evacuteat thecheckvalve of liquid stop valve and both sidesof the gasstop valve.
Toprevent the different oilinto the pipe, pleaseuse the specialtoolforR410A, especiallyfor
gauge manifold andcharging hose.
Toprevent the compressoroilinto the refrigerant cycle, please usethe anti-counter-flow
adapter.
Because theunit iswithrefrigerant R410A, the below issuesshould be paid attention:
Tighten torque asthetable below:
lessthan 7
7.85
(MAX15.7)
lessthan 30
29.4
(MAX39.2)
13
8.8
(MAX14.7)
shaft
(valvebody) cap (cover) T-shapenut (checkjoint)
Tighten torque N.m
forgaspipe
forliquid
pipe
D.Checkvalveoperation
Open/close method:
Takedown the valve cap.
Turn the liquid stop valveandthe gasstop valvewithhexangularspanneruntilit stops. If
opening thevalve strongly, the valvewillbedamaged.
Tightenthe valvecap.
Operationprocedure:
afterreaching -100.7KPa or
less (below -755mmHg), let
the vacuum pumprunning
continuouslyforover1hour.
leave itforover1
hour, vacuum
pointerdoesnot
arise.
if vacuumpointerarises, itshowsthere iswaterorleakage inthe
system, please checkand modifyit, andthenevacuate again.
E. Additionalrefrigerantcharging
Charge the additionalrefrigerant asliquidstate with the gauge.
If the additionalrefrigerant cannot be chargedtotallywhenthe outdoorstops, chargeit at the
trialmode.
If the unit runsforalong period in thestate of lackof refrigerant, compressorwilloccurfailure.
(thechargingmust be finishedwithin 30minutesespeciallywhen the unit isrunning, menawhile
chargingthe refrigerant).
Installationprocedure

13
Model 22.22 19.05 15.88 12.7 9.52 6.35
0.35 0.25 0.17 0.11 0.054 0.022
additonalrefrigerant charging permeter(kg/m) charge when
out of factory
refertotable
YCV080
B-YCV150
C. Refrigerant charging and additionalcharging
A. Chargingamount when outof factoryexcludesthe refrigerant in the pipe.
B.The unitonlyischarged the standardvolume of refrigerant (distributing pipe length is0m).
Additionalcharging amount=actuallength of liquid pipe xadditionalamount permeterliquid pipe
Additionalcharging amount=L1×0.35+L2×0.25+L3×0.17+L4×0.11+L5×0.054+L6×0.022
L1: totallength of 22.22 liquidpipe L2: totallengthof 19.05 liquidpipe
L3: totallength of 15.88 liquidpipe L4: totallengthof 12.7 liquid pipe
L5: totallength of 9.52 liquidpipe L6:totallength of 6.35liquid pipe
Toprevent thedifferent oilinto the pipe, pleaseusethe specialtoolforR410A, especiallyfor
gauge manifoldandcharging hose.
Mark the refrigerant type indifferent colouron thetank. R410Aispink.
Must not use the chargingcylinder, because the R410Awillchange when transferring to the
cylinder.
When charging refrigerant, the refrigerant shouldbe takenout fromthe tankasliquid state.
Mark the counted refrigerant volume dueto thedistributing pipe length onthe label.
Fixthe refrigerantpipe
In operation, the pipe will vibrate and expand orshrink.Ifnot being fixed, the refrigerant will
focuson one part tocausethe brokenpipe.
Toprevent thecentralstress, fixthe pipe forevery2-3m.
Note:For YCV080, whenpipediameteris 6.35,ifthepipelengthis within15m,additionalrefrigerant
is unnecessary.
Note:
Connectionwire
Liquidpipe
Heatinsulator
Gas pipe
Adhesivetape
over20cm
Heatinsulation
Gaspipeand liquid pipe should be heat insulated separately.
The materialforgaspipeshouldendurethe high temperatureover
120℃.That forliquidpipe should be over70℃.
The materialthickness shouldbe over15mm, whenambienttemp.
is 30℃, andthe relativehumidityis over80%,thematerialthickness
should beover20mm.
he materialshouldclingthe pipecloselywithout gap,
thenbe wrappedwith adhesive tape. The connection
wirecannot be puttogetherwiththe heat insulationmaterialand
should befarat least 20cm.
YCV180
Installationprocedure

14
5-minute delayfunction
If startingup the unit afterbeing powered off, the compressorwillrun about 5 minuteslater
against beingdamaged.
Cooling/heating operation
Indoorunitscan be controlled individually, but cannot run in cooland heat mode at the same
time. If thecoolmode and the heat mode are existing simultaneously, theunit set latterwillbe
standby, and the unit set earlierwillrun normally. If the A/C managersetsthe unit at cooling or
heatingmode fixedly, theunit can not run at the othermodes.
In operation if outdoortemp. arises, indoorfan motorwillturnto low speed orstop.
Heatingmode characteristic
Defrostinginheating mode
In heating mode, outdoordefrostingwillaffect the heating efficiency.Theunit willdefrost for
about 2~10 minutesautomatically, at thistime, the condensate willflow from outdoor, also in
defrosting, the vapourwill appearat outdoor,whichis normal.Indoormotorwill runatlow speed
orstop, and outdoormotorwillstop.
The unitoperation condition
Tousethe unit properly, please operate theunit underthe allowed condition range.
If operating beyondthe range, the protection devicewillact.
The relative humidityshould be lowerthan80%. If the unit runsat the humidityover80%fora
long period,the dew on the unit willdrop down and thevapourwillbe blowed from airoutlet.
Highpressure switch isthe devicewhich can stop the unit automaticallywhenthe unit runs
abnormally.
Whenthe highpressure switch acts, the cooling/heating mode willstop but the running LED on
wired controllerwillbelight still.Thewiredcontrollerwilldisplayfailure code.
Whenthe following casesoccur, the protectiondevice willact:
In cooling mode, airoutlet and airinlet of outdoorareclogged.
In heatingmode, indoorfilteris sticked with duct; indoorairoutlet isclogged.
Whenprotection device acts, please cut off thepowersource and re-start up aftereliminating
the trouble.
Protection device(suchas high pressure switch)
Trialoperation and the performance

15
Whenpoweris failure
When powerisfailure in running, allthe operationswillstop.
Afterbeing electrified again, if with re-satrt up function, the unit can resumeto thestate before
poweroffautomatically; ifwithout re-satrtup function, the unit needsto beswitched on again.
When abnormaloccursinrunning because of the thunder, thelightning, the interferenceof car
orradio, etc, please cut off the powersource,aftereliminating the failure, press "ON/OFF"button
to start up the unit.
Heatingcapacity
The heating mode adoptstheheat pumptypethat absorbsoutdoorheat energyandreleases
into indoor. So ifoutdoortemperature goesdown,the heating capacitywilldecrease.
indoor model:
RoomNo.
e.g. IndoorA, system1,Floor 22F-1A
Systemmarks
Onthe condition that multisystemsare installed, in ordertoconfirm the relationship
betweenoutdoorandindoor,pleasemakemarks onoutdoorelectriccontrolboxcovertoindicate
the connected indoorunit. Asthe below figure:
Trial operation
Trialoperation
In trialoperation, refertothe information of performance section. When theunit can not start
up at the room temperature, make trialoperation foroutdoor.
Confirm thecompressorbottom getting hot.
Except fortheconditionthat there isonlyone masterunit connected(no slave unit), underthe
otherconditions, open fullytheoutdooroperatingvalves(gasside, liquid side). If operating the
unit without openingthe valves, compressorfailure willoccur.
Confirm allindoorunitsbeing electrified. If not, waterleakagewilloccur.
Measurethe system pressure with pressure gauge, at the sametime, operate theunit.
Beforetrialoperation:
Before beingelectrified,measure the resistorbetweenpowerterminalblock(livewire andneutral
wire)and theearthed point with a multimeter, andcheckif it isover1M . If not, the unit can
not operate.
Toprotect compressor, electrifytheoutdoorunit forat least 12hours beforethe unit runs.If the
crankcase heaterisnot electrified for6 hours, thecompressorwillnot work.
Trialoperation and the performance

16
Communicationwiring figure
PQABC
ABC ABC
indoor 3
PQABC
indoor 4
PQABC
indoor5
PQABC
indoor6
PQABC
ABC ABC ABC
outdoor
P Q
indoor 1
PQABC
indoor2
ABC
communicationwirewithpolarity
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
The outdoorand allindoorunitsarein parallelthrough 2 non-polarwires.
Three wiring methodsbetweenwiredcontrollerandindoorunit:
A. 1 to multi(groupcontrol):onewiredcontrollercontrols 2~16 indoors, asshown inabove figure,
indoor1~indoor2: indoor2 iswired controlmasterunit, theothersare wired controlslave units.
Wiredcontrollerandthe masterindoor(directlyconnected to wired controller)isconnected by3
polarwires; the otherindoorsand the masterindoors are connectedby2 polarwires.
B. 1 to 1 (one wired controllercontrolsoneindoor): asshown in abovefigure, indoor3~indoor
4, indoorand wired controllerare connected by3 polarwires.
C. 2 to 1(twowiredcontrollercontrolsone indoor): asshown in above figure, indoor6. Eitherof
wired controllerscan be set asmasterwiredcontroller, andthe otherisslave wired controller.
Master/slave wiredcontroller, and master/indoorareconnectedby3polarwires.
When indooris controlledbyremote controller,referto the "wired controlmasterunit/wired control
slaveunit/remote controlunittable".A,B,Con signalterminalblockneed not wiresand not connect
the wired controller.
Internal wiring diagramforpowercableinstallation
Note: The powerwirecannot touchanyrefrigerant pipe.
Electricwiring and the application

17
Powerwiring figure
Indoorand outdoorusetheirindividualpowersource.Allindoorsuse one powersource. Must
installtheleakage breakerand the overcurrent breaker, orelectricshockwilloccur.
a.Powercable model:
YCV080: H05RN-F; B-YCV150;YCV180: H07RN-F
b.The diameterof earthcablecannot besmallerthan powercable's.
c.Powercablemust be fixed firmly.
d.Each outdoormust be earthed well.
e.When powercableexceedsthe range, thicken it appropriately.
f.Thetemperature ofrefrigerant circuit willbe high, please keep the powercable awayfrom the
coppertube.
g.An all-poledisconnection switch havinga contact separation of at least 3mminallpoles
shouldbe connected in fixed wiring.
leakage breaker
L1 L2 L3 N
outdoor
powersource:3N~, 380-400V,50Hz
LN
indoor3
(nonwall mountedunit)
powersource: 1PH,220-230V~, 50Hz
LN
indoor 1
(wall mountedunit)
powersource:1PH, 220-230V~,50Hz
overcurrentbreaker
leakage breaker
overcurrent breaker
LN
indoor2
(wall mountedunit)
power source: 1PH,220-230V~, 50Hz
leakagebreaker
overcurrent breaker overcurrent breaker
leakage breaker
B-YCV150
YCV180 LN
outdoor
powersource: 1PH,220-230V~, 50Hz
overcurrentbreaker
leakagebreaker
YCV080
Specs forpowercable andcommunication wire
1PH,
220-230V~,
50Hz
1.Outdoorpowersourceandpowercable
YCV080
model
circuit
breaker
(A)
power
cable
section
(mm2)
earthing wire
section
(mm2)screw
item
6M5
power
source
3N~,
380-400V,
50Hz
rated current of residual
current circuit breaker(A)
leakage current (mA)
response time(s)
30A30mAbelow 0.1S6
4
30
20 20A30mAbelow 0.1S 4 M5
B-YCV150
YCV180
Electricwiring and the application

18
2. Indoorpowersource, communication wire between indoorand outdoor, amongindoors
a. Indoorpowercablemodel: H05VV-F;
b. Powercableand communication wiremust be fixed firmly.
c.Eachindoormust be earthed well.
d. When powercable exceedsthe range, thickenit appropriately.
e.Shieldedlayerofcommunicationwiresmustbeconnectedtogetherand be earthedatsingle
point.
f. Communicationwire totallength cannot exceed 1000m.
item
power
cable
section
(mm2)
wire
length
(m)
<10
≥10 and <15
≥15 and <22
≥22 and <27
2
3.5
5.5
10
20
25
30
40
20
30
40
50
20A, 30mA, below0.1s
30A, 30mA, below0.1s
40A, 30mA, below0.1s
50A, 30mA, below0.1s
2-core ×(0.75-2.0mm2)
shielded wire
indoortotal
current (A)
ratedcurrent
of overcurrent
breaker(A)
communicationwiresection
outdoor/indoor
(mm2)indoor/indoor (mm2)
ratedcurrentof residual
current circuit breaker(A)
leakagecurrent(mA)
responsetime(s)
3. Communication wireforwiredcontroller
a. Shieldedlayerofcommunication wiremust be earthedat one end.
b. The totallength cannot exceed 600m.
〈100
≥100 and <200
≥200 and <300
wire length(m) wirespec
0.3mm2×(3-core)shielded wire
wire length(m) wire spec
0.5mm2×(3-core)shielded wire
0.75mm2×(3-core)shielded wire
≥300 and <400
≥400 and <600
1.25mm2×(3-core)shielded wire
2mm2×(3-core)shielded wire
Electricwiring and the application