Panasonic CS-A24BD3P User manual

ORDERNO. MAC0111069C0
AIRCONDITIONER
HIDEAWAYTYPE
HEATPUMP MODEL
CS-A24BD3P (CU-A24BBP5)
CS-A28BD3P (CU-A28BBP5, CU-A28BBP8)
CS-A34BD3P (CU-A34BBP5, CU-A34BBP8)
CS-A43BD3P (CU-A43BBP8)
CS-A50BD3P (CU-A50BBP8)
COOLING ONLY MODEL
CS-A24BD3P (CU-C24BBP5)
CS-A28BD3P (CU-C28BBP5, CU-C28BBP8)
CS-A34BD3P (CU-C34BBP5, CU-C34BBP8)
CS-A43BD3P (CU-C43BBP8)
CS-A50BD3P (CU-C50BBP8)
2001 Matsushita Air-Conditioning Corp. Sdn. Bhd. (183914D).
All rights reserved. Unauthorizedcopying and distribution isa
violation oflaw.

1. SERVICE INFORMATION
Notice of Address setting forNEWCassette / NEWOutdoorUnit.
The newCeiling / NewOutdoormodels are possible to have address setting fortwin/ triple
control orgroup control byautomatic whenmainpowersupplyis switchedon.
(Manual address setting is alsopossible byusing Dipswitchon IndoorunitP.C. board.)
However, this address setting is onlypossible whenmade properwiring connection and also
Indoorunitshouldbe original virginunit.
1.1. Exampleoftroubleat test operation
Iffound out as following phenomenon attestoperation on site, itmayhave possibilityof wrong
address setting. / Therefore, please ensure of the address setting.
1. LCD displayofwiredremote control hadnotilluminate although
themainpowersupplyswitchis‘on’.
2. LCD displayhadindicatedas normal illumination whenpower
supplyswitchis‘on’, howeveroutdoor unitcannotbeoperated. /
(But, itisnecessarytotake 3to5minutes for outdoor unittostart
from thetiming ofremote control ON/OFF switchis‘on’.)
3. P.C. board hadmemorizedwrong setting information.
A. Ifmainpowersupplyisswitched‘on’ withthewrong
connection.
B. Whenchanging theconnection or combination ofunits dueto
re-installation etc.
-Whenchanging thesystemfrom twintotriple(tripletotwin).
-Whenchanging thesystemfrom group control tonormal one
toonesystem.
-Whenmaking thereplacementofunits as masterand slave
etc.

1.2. Caution oftest operation
Donot touchthe remote control switchand do not change anywirings forone minute whenthe
mainpowersupplyswitchis ‘on’. / (Because the unitis having automatic address setting
during the firstone minute.)
1.3. Caution during automaticaddress setting
Whenmainpowersupplyswitchis ‘on’, the P.C. boardwill automaticallymemorizedthe
connecting system. / Consequently, wheninitial powersupplyis ‘on’, there will not be
interchangeabilityof units evenof the same type and same capacityunit. Therefore unable to
connectthe unitto anothersystem.
2. FEATURES
2.1. Varietyofexcellentfeatures /
2.1.1. Compact design, height27 cm
-Theheighthas beenreducedto27 cm(for 2.5HP to6.0HP), the
equipmentcanbeinstalledinlimitedspaces.
2.1.2. Versatileinstallation
-Theindoor unitisdesignedinorderthat airwill alsoenterfrom
below, for easierinstallation underdifferentconditions.
-Theequipmenthas twodrainoutlets on therightand left sidefor
adoption totheinstallation conditionsinthebuilding.
2.1.3. Easymaintenance
-Equippedwithafilteras standard. Thefiltercanberemovedin
three directionsfor easiermaintenance.

2.1.4. Staticpressureselection
-Thestaticpressureisselectable;5mmAqor 7mmAq. Thestatic
pressurecanbeselectedaccording tothecondition oftheduct.
2.1.5. Quiet operation
-Thesound level isas lowas 40db (A)for 2.5HP and 3.0HP. The
modelsisideal for installation inoffices, shop and houses where
quiet operation isimportant.
2.1.6. Autofanmodeoperation
-Autofanmodeisaddedtoexisting modes Hi, Me and Lo. It
aotomaticallyadjusts thefanspeedaccording totheindoor
temperature.
2.1.7. Drymodefunction
-Drymodecanmake acomfortableindoor environmentduring wet
season.
2.1.8. Automaticchangeover function (heat pumpmodels)
-Theunitautomaticallyswitches betweencooling and heating in
accordance withoperating loadinordertomaintainaconfortable
indoor temperature.
2.1.9. Common design for Indoor unitand Remote Control
-Theindoor unitand thewireremote control aredesign as a
common specification betweenCooling onlyand Heat Pump
models.
2.1.10. WiredRemote Control

-Thenewdesign includes aneasily-visibleredpilotlamp. / The
powercanbeturnedon and off at asingletouch, withoutopening
thecover.
-Abuilt-inthermistor, allowing indoor temperaturedetection in
accordance withindoor conditionsbyswitching withmainunit
thermistor.
-Twinnon-polarwires make installation workeasy, (10 mcable
suppliedas accessories)
2.2. Newlow-noise outdoor units

[Productfeatures]
2.2.1. Low-noise design improves insurrounding areas
1. Thenoise-suppressing winglet fanisaresultofnewresearch
intovanedesign theory. Theuniquecurvedshapesuppresses the
generation ofvortexes, thusreduces airflownoise.
2. Theadoption ofdouble-orifice ringsreduces airpassage
resistance.
3. Strengthening ofthenoise insulation materialsinthe
compressor and thesealing-inofmechanical noise allows
vibration noise tobegreatlyenclosedand suppressed.
4. Theheat exchangerhas anL-shapeddesign toallowairtoflow
moresmoothly.
5. Noise isautomaticallyreducedfurtherduring nighttime
operation withloweroutdoor airtemperatures.

2.2.2. Automaticrestartfunction
Whenthe electric powerresumes aftera powerfailure, the unitwill automaticallyrestarts the
operation inthe pre-failure mode.
2.2.3. Lowambientcooling operation
Cooling operation is possible atoutdoortemperature of -5~C.
2.3. Greatlyimprovedworkabilityincreases systemrenewal
capability
2.3.1. Pipes that areonesizelarger canalsobeconnectedfor renewal
-Ifrenewing thesystem, existing refrigerantpipes canbeutilizedso
that onlytheindoor units needtobereplaced.
-For example, liquidand gas pipes from 10 yearsago canbe
connectedtocurrentpipes withthesamesizefor onesizelarger.
Effectiveutilization ofmaterialsreduces working timeand trouble.
(Adaptor sockets arenotsupplied.)
2.3.2. Additional refrigerantcharging unnecessaryfor 30 m
-All modelsdo notrequireanyadditional charging ofrefrigerantfor

30 mofpipelength. Thismakes installation mucheasier.
2.3.3. Drainwater dripping-prevention structure
-Thebase oftheoutdoor unitisprovidedwithasingledrainholein
ordertopreventdrainwaterfrom leaking outoftheunit. Body
connecting adrainelbowand adischargepipe, waterleakages
canbepreventedevenwhentheunitisinstalledagainst awall.
2.3.4. Space saving design allowsunits tobeinstalledsidebysidecontinuously
-Servicing afterinstallation canbecarriedoutbyremoving thefront
covers.
2.3.5. Easytest operation
-Test operation canbecarriedoutfor bothindoor and outdoor
units.
2.3.6. Long pipedesign
Max piping length: 50 (m) 24BB~50BB
Height difference/
equivalent pipe length 30/50
2.3.7. Internal pipeconnection
-Pipes areconnectedinsidetheunits (insidethesidecovers),
making thefinal appearance moreattractive.
-Pipes canbedivertedoutward inanyoffour directions(forward,
right, down, rear).
-Small liquidpipediametersof9.52mm for 43BB and 50BB models,

making installation workmucheasier.
Liquid-side pipe diameters (mm) :9.52 (43BB~50BB / models)
2.3.8. Centralizeddraining method
-Evenwhenmultipleoutdoor units areinstalledtoawall, thedrain
outlets canbeconcentratedintoasingledrainpipe. Thismakes
installation easierand alsoimproveappearance.
2.4. Abrand-newcontrol method using thelatest intechnology
2.4.1. Power supplywiring isalsoeasier
Powersupplywiring and otherwiring tasks canbe carriedout more easily.
-Twinnon-polarwires usedtoconnect indoor and outdoor units.
-Adoption ofconnection error prevention circuits for drives wires
and signal wires. Ifaconnection error ismade, therelaydoes not
operate and currentdoes notflowtothecircuitboards.
2.4.2. Separate indoor/outdoor unitpower supplies
The powersupplycanbe connectedto (1)justthe outdoorunits, or(2)to both indoorand
outdoorunits.
2.4.3. Automaticsetting initialization function (Remote control and Indoor unit)
Inaccordance with the indoorand outdoorunits connectedand the connection methods,
conditions suchas the configuration (twinortriple format) and remote-control functions such
as cooling onlyorheatpump model are automaticallydetectedand setinstantly.
2.4.4. Group control equipment

2.4.5. Twinand Tripleoperation
-Simultaneousairconditioning ofwidespaces and cornersis
possible. Indoor units ofdifferenthorsepowersand modelscan
evenbeusedincombination.
-Masterunitand slave-units canbeset automaticallyintwinand
triplesystems. Noaddress setting isnecessary.
-Multipleindoor units canbeoperatedsimultaneouslywithasingle
remote control. Note that individual operation isnotpossible.
Twinand Triple combination table