Daikin RXB25B5V1, RXB35B5V1 Installation manuals

INSTALLATION MANUAL

R410A Split Series

Models RXB25B5V1 RXB35B5V1

Installation manual

R410A Split series

Montaj Kılavuzu R410A Split serisi

English

Türkçe

1 ■English

Safety Precautions

• Read these Safety Precautionscarefully to ensure correct installation.

• Thismanualclassifiesthe precautions into WARNING andCAUTION.

Be sure to follow all theprecautions below: they areall importantfor ensuring safety.

WARNING

...............Failure to follow anyofWARNING is likelytoresultinsuchgrave consequences as death or serious injury.

CAUTION...............Failure to followany of CAUTIONmay result in grave consequences in some cases.

• Thefollowing safety symbols areusedthroughoutthis manual:

• After completinginstallation,test the unit to check forinstallation errors. Give the user adequate instructions concerning theuse

andcleaning of theunit according to the OperationManual.

Be sure to observe this instruction.Besure to establish an earthconnection. Never attempt.

WARNING

• Installation shouldbeleft to the dealeroranother professional.

Improper installationmay cause water leakage, electrical shock, or fire.

• Install the air conditioner according to the instructions giveninthis manual.

Incomplete installation may cause water leakage,electrical shock, or fire.

• Be sure to usethe suppliedorspecifiedinstallation parts.

Use of other parts maycause the unit to come to lose, water leakage, electricalshock, or fire.

• Installthe air conditioner on asolid base thatcan support theweight of theunit.

An inadequatebase or incomplete installation may cause injuryinthe event the unit falls offthe base.

• Electrical work should be carried out in accordance with the installation manual and thenational electricalwiring rulesorcodeofpractice.

Insufficient capacity or incomplete electrical work may cause electricalshock or fire.

• Be sure to useadedicated powercircuit. Never use apower supply sharedbyanother appliance.

• For wiring, use acable length enough to coverthe entire distance with no connection.

Do not use an extensioncord. Do notput other loadsonthe powersupply,use adedicatedpowercircuit.

(Failuretodosomay cause abnormal heat, electric shock or fire.)

• Usethe specified types of wires for electrical connections betweenthe indoor and outdoor units.

Firmly clamp the interconnectingwires so their terminals receive no external stresses. Incomplete connections or clamping may causeterminaloverheating or fire.

• After connectinginterconnecting andsupply wiringbesuretoshape the cablessothattheydonot putundueforce on theelectrical coversorpanels.

Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock, or fire.

• If anyrefrigerant has leakedout duringthe installation work, ventilate theroom.

(The refrigerant produces atoxic gas if exposed to flames.)

• After all installation is complete, checktomakesurethat no refrigerant is leakingout.

(The refrigerant produces atoxic gas if exposed to flames.)

• Wheninstalling or relocating thesystem, be suretokeep therefrigerant circuit free from substances otherthan the

specified refrigerant(R410A),suchasair.

(Any presence of air or otherforeign substance in the refrigerant circuit causes an abnormalpressurerise or rupture, resulting in injury.)

• Duringpump-down,stopthe compressor before removingthe refrigerant piping.

If the compressor is still running and the stop valve is open duringpump-down, air will be sucked in when the refrigerant piping is removed, causing abnormal pressure in thefreezer cycle which will lead to breakage and even injury.

• Duringinstallation, attach the refrigerantpiping securely beforerunningthe compressor.

If the compressor is not attached and the stop valve is open during pump-down, air will be sucked in when thecompressor is run, causing abnormal pressure in the freezercycle which will lead to breakage and even injury.

• Be sure to establish an earth. Do notearth theunittoautilitypipe, arrester,ortelephone earth.

Incomplete earth may cause electrical shock, or fire. Ahigh surge current from lightning or other sources may cause damage to the air conditioner.

• Be sure to install an earth leakagebreaker.

Failure to install an earth leakage breakermay result in electric shocks, or fire.

CAUTION

• Do notinstall theair conditioner in aplace wherethere is dangerofexposure to inflammable gasleakage.

If the gas leaks and builds up around the unit, it may catch fire.

• Establish drainpipingaccordingtothe instructions of this manual.

Inadequate piping may cause flooding.

• Tighten the flarenut accordingtothe specified method such as with atorquewrench.

If the flarenut is tightenedtoo hard, the flare nutmay crack after along time andcause refrigerantleakage.

• Make sure to providefor adequate measures in ordertoprevent that the outdoor unit be usedasashelterbysmall animals.

Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct thecustomertokeep the area around the unit clean.

■English 2

Accessories

Accessoriessupplied with theoutdoor unit:

Precautions for Selecting the Location

1) Choose aplace solidenough to bear theweight andvibrationofthe unit, where the operationnoise willnot be amplified.

2) Choose alocationwhere the hot air dischargedfrom theunit or theoperation noise will notcause anuisance to theneighbors of theuser.

3) Avoid places near abedroom and the like,sothatthe operationnoisewillcause no trouble.

4) Theremust be sufficientspacesfor carrying theunitinto and outofthe site.

5) Theremust be sufficientspace for air passageand no obstructions around the airinletand the airoutlet.

6) Thesite must be free from the possibilityofflammable gasleakageinanearbyplace.

7) Installunits, powercords andinter-unit cablesatleast3meter awayfromtelevisionand radio sets. This is to prevent interference to images andsounds. (Noisesmay be heard even if theyare more than3meter awaydepending on radio wave conditions.)

8) In coastal areas or otherplaces with saltyatmosphere of sulfategas,corrosion mayshorten thelife of the airconditioner.

9) Since drain flows outofthe outdoor unit, do notplace underthe unit anything which must be keptawayfrom moisture.

NOTE

Cannotbeinstalled hanging fromceiling or stacked.

CAUTION

Whenoperating theair conditioner in alow outdoor ambient temperature,besure to followthe instructionsdescribed below.

1) To preventexposure to wind, installthe outdoorunit with itssuction side facingthe wall.

2) Neverinstallthe outdoorunitatasite where the suction side may be exposed directly to wind.

3) To preventexposure to wind, it is recommended to install abaffle plate on the airdischarge sideofthe outdoor unit.

4) In heavy snowfallareas, select an installation site where the snow will not affect the unit.

(B) Drain plug (Heatpump-Models)

It is on the bottom of the packing case.

Construct alarge canopy. Construct apedestal.

Install the unit high enough off the ground to prevent burying in snow.

3 ■English

Outdoor Unit

Installation Drawings

CAUTION

Set the piping length from

1.5m to 15m.

Wrap the insulation pipe with the finishing tape from bottom to top.

In sites with poor drainage, use block bases for outdoor unit. Adjust foot height until the unit is leveled. Otherwise, water leakage or pooling of water may occur.

Where there is adanger of the unit falling, use foot bolts, or wires.

Allow space for piping and electrical servicing.

250mm from wall

unit: mm

O.D. 9.5mm

Gas pipe

Liquid pipe

O.D. 6.4mm

20g/m

Max. allowable length

12m

15m

Max. allowable height Additional refrigerant

required for refrigerant pipe exceeding 10m in length.

Be sure to add the proper amount of additional refrigerant. Failure to do so may result in reduced perfomance.

The suggested shortest pipe length is 1.5m, in order to avoid noise from the outdoor unit and vibration. (Mechanical noise and vibration may occur depending on how the unit is installed and the environment in which it is used.)

1.5m

Min. allowable length

470

(Foot bolt-hole centres)

(From unit’s side)

Foot bolt-hole

centres

300

How to remove the stop valve cover.

Remove the screw on the stop valve cover. Slide the lid downward to remove it.

How to attach the stop valve cover.

Insert the upper part of the stop valve cover into the outdoor unit to install. Tighten the screws.

Stop valve cover

■English 4

Installation Guidelines

• Where awallorother obstacleisinthe path of outdoor unit’sintake or exhaust airflow, follow the installationguidelines below.

• Forany of the below installation patterns, thewall heightonthe exhaust sideshouldbe1200mm or less.

Precautions on Installation

• Check the strength and levelofthe installationground so that theunit will not cause any operatingvibration or noise after installed.

• In accordance with the foundation drawing, fix the unitsecurelybymeans of thefoundation bolts. (Prepare four sets of M8 or M10

foundationbolts, nuts and washers eachwhich are available on themarket.)

• It is best to screw in the foundation bolts untiltheir length are20mm from the foundationsurface.

Outdoor Unit Installation

Installing outdoor unit.

1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Outdoor UnitInstallationDraw-

ings.”

2) If drainworkisnecessary,followthe proceduresbelow.

Drain work. (Heat pump-models.)

1) Use drainplug for drainage.

2) If thedrainportiscovered by amounting base or floorsurface, placeaddi-

tionalfootbases of at least 30mm in height under theoutdoorunit’sfeet.

3) In cold areas, do notuse adrainhosewiththe outdoorunit.

(Otherwise, drainwater may freeze,impairing heating performance.)

More than 50 More than 50

More than 150 More than 100

More than 50 More than 100

Side view

1200 or less

Wall facing one side Walls facing twosides

Topview

Unit: mm

More than 150

More than 300

More than 50

Walls facing three sides

Drain-water hole

Bottom frame

Drain plug

Hose (available commercially, inner dia. 16mm)

5 ■English

Outdoor Unit Installation

Flaring the pipe end.

1) Cut thepipe endwith apipe cutter.

2) Remove burrs with the cut surface facingdownward so that the chips do not enter thepipe.

3) Put the flarenut on the pipe.

4) Flare thepipe.

5) Check that the flaring is properly made.

WARNING

1) Do not use mineraloil on flared part.

2) Prevent mineral oilfrom getting into the system as this would reduce the lifetime of theunits.

3) Never use piping which has beenusedfor previousinstallations. Only use partswhichare deliveredwiththe unit.

4) Do neverinstalladrier to this R410A unit in ordertoguarantee its lifetime.

5) The drying material may dissolve and damage the system.

6) Incomplete flaringmay cause refrigerant gas leakage.

Refrigerant piping.

CAUTION

1) Use theflare nut fixed to the main unit. (Toprevent cracking of theflare nut by aged deterioration.)

2) To prevent gas leakage, apply refrigeration oilonly to the innersurface of the flare.(Use refrigeration oil for R410A.)

3) Usetorquewrencheswhentighteningthe flarenuts to preventdamagetothe flare nuts and gasleakage.

Align the centresofbothflaresand tighten theflare nuts 3or4turns by hand. Then tighten them fullywith the torque wrenches.

(Cut exactly at

right angles.) Remove burrs

Set exactly at the position shown below.

Flaring

Die

Check

Flare’s inner surface must be flaw-free.

The pipe end must be evenly flared in aperfect circle.

Make sure that the flare nut is fitted.

A0-0.5mm

Clutch-type

Flare tool for R410A

1.0-1.5mm

Clutch-type (Rigid-type)

1.5-2.0mm

Wing-nut type (Imperial-type)

Conventional flare tool

Flare nuttightening torque

Gas side Liquid side

3/8 inch 1/4 inch

32.7-39.9N

m14.2-17.2N0m

(333-407kgf

cm) (144-175kgf0cm)

Valvecap tightening torque

Gas side Liquid side

3/8 inch 1/4 inch

21.6-27.4N

m21.6-27.4N0m

(220-280kgf

cm) (220-280kgf0cm)

Service portcap 10.8~14.7N0m tightening torque (110~150kgf

cm)

Torque wrench

Piping union

Flare nut

Do not apply refrigeration oil to the outer surface.

Flare nut

Apply refrigeration oil to the inner surface of the flare.

Do not apply refrigeration oil to the flare nutavoid tightening with over torque.

Spanner

[Apply oil] [Tighten]

■English 6

Purging air and checking gas leakage.

• When pipingworkiscompleted, it is necessarytopurge theair andcheck forgas leakage.

WARNING

1) Do not mixany substance other than thespecified refrigerant (R410A) into the refrigeration cycle.

2) Whenrefrigerantgas leaks occur, ventilate the room as soon andasmuch as possible.

3) R410A, as well as otherrefrigerants, should always be recovered andnever be released directly into the environment.

4) Use avacuumpump forR410A exclusively.Using the same vacuum pump for differentrefrigerants may damagethe vacuum pump or theunit.

• If using additionalrefrigerant, perform airpurging from therefrigerant pipes and indoorunitusing avacuum pump,thenchargeadditional refrigerant.

• Use ahexagonal wrench (4mm) to operate thestop valve rod.

• Allrefrigerant pipe joints shouldbetightened with atorque wrenchatthe specified

tightening torque.

*1.Pipe length vs. vacuum pump run time.

*2.Ifthe compoundpressure gauge pointer swings back, refrigerant may have water content or aloose pipe joint may exists.

Checkall pipe joints andretighten nuts as needed,then repeat steps 2) through4).

1) Connect projection sideofcharging hose (which comes fromgauge manifold) to gasstop valve’sservice port.

2) Fully open gauge manifold’slow-pressurevalve (Lo) andcompletely close its high-pressure valve (Hi). (High-pressure valve subsequentlyrequires no operation.)

3) Do vacuum pumpingand make sure that the compound pressure gauge reads –0.1MPa (–76cmHg)*1.

4) Close gauge manifold’slow-pressure valve (Lo) and stop vacuumpump. (Keepthis state for afew minutes to make sure that thecompound pressure gauge pointerdoesnot swing back.)*2.

5) Remove caps from liquidstop valve and gasstop valve.

6) Turn theliquid stopvalve’srod 90 degrees counterclockwise with ahexagonal wrenchtoopen valve. Close it after5seconds, andcheck forgas leakage. Usingsoapy water,check forgas leakagefrom indoor unit’sflare andoutdoor unit’sflare and valve rods. After thecheck is complete, wipe all so

apy water off.

7) Disconnect charging hose fromgas stop valve’sservice port, thenfullyopenliquid andgas stopvalves. (Donot attempttoturnvalve rodbeyond itsstop.)

8) Tighten valve caps and service port caps for the liquidand gasstop valveswith atorque wrenchatthe specified torques.

Pipe length Up to 15 metres

Run time Notless than 10 min.

Compound pressure gauge

Pressure meter

Highpressure valve

Low-pressure valve

Vacuum pump

Service port

Liquid stop valve

Valve caps

Gas stop valve

Charging hoses

Gauge manifold

7 ■English

Outdoor Unit Installation

Refilling therefrigerant.

Check thetype of refrigerant to be used on the machine nameplate.

PrecautionswhenaddingR410A

Fill from theliquid pipe in liquid form.

It is amixedrefrigerant, so addingitingas form maycause the refrigerant compositiontochange, preventing normal operation.

1) Before filling, check whether thecylinder hasasiphon attached or not. (It shouldhave somethinglike “liquid filling siphon attached” displayedonit.)

• Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.

Refrigerant piping work.

7-1Cautionsonpipe handling.

1) Protect theopen endofthe pipe against dust andmoisture.

2) Allpipe bends should be as gentleaspossible. Use apipebender forbending.

7-2Selection of copperand heat insulation materials.

When using commercial copperpipesand fittings, observe the following:

1) Insulationmaterial: Polyethylene foam

Heat transfer rate: 0.041 to 0.052W/mK (0.035 to 0.045kcal/(mh •°C)) Refrigerantgas pipe’ssurface temperature reaches 110°Cmax. Choose heat insulation materials that will withstand thistemperature.

2) Be sure to insulate both thegas and liquidpiping and to provide insulation dimensions as below.

3) Useseparate thermal insulation pipes for gasand liquid refrigerant pipes.

GassideLiquid side

Gaspipe

thermal insulation

Liquid pipe

thermalinsulation

O.D. 9.5mm O.D. 6.4mmI.D. 12-15mm I.D. 8-10mm

Minimum bendradiusThickness 10mm Min.

30mm or more

Thickness 0.8mm(C1220T-O)

Fillingacylinderwithanattachedsiphon

Standthe cylinder upright when filling.

There is asiphon pipe inside,sothe cylinder need not be upside-down to fill with liquid.

Filling other cylinders

Turn the cylinder upside-down when filling.

Wall

If no flare cap is available, cover the flare mouth with tape to keep dirt or water out.

Be sure to place acap.

Rain

Gas pipe

Liquid pipe

Gas pipe insulation

Liquid pipe insulation

Finishing tape

Drain hose

Inter-unit wiring

■English 8

Pump Down Operation

In order to protect the environment,besuretopump down whenrelocating or disposing of theunit.

1) Remove the valve capfrom liquid stop valve andgas stop valve.

2) Carry out forcedcoolingoperation.

3) After five to ten minutes, close the liquidstop valve with ahexagonal wrench.

After twotothree minutes,close thegas stop valveand stop forcedcooling operation.

Howtoforce cooling operationmode

■■ Usingthe indoor unit operation/stopbutton

Press the indoor unit operation/stop button foratleast five seconds. (Operation will start.)

• Forced coolingoperation will stop automatically afteraround 15 minutes. To force atest run to stop, press the indoor unitoperation/stop button.

■■ Usingthe main unit’sremote controller

1) Press the “operation/stop” button. (Operation will start.)

2) Pressthe temperature

buttonand the “operation select” button at the same time.

3) Press the “operationselect” button twice. (willbedisplayed andthe unit will entertest runmode.)

4) Press the “operationselect” button to return the operation modetocooling.

• Te st run mode will stopautomatically afteraround30minutes. To force atest run to stop, press theoperation/stopbutton.

CAUTION

1) Whenpressing the switch, do not touch theterminal block. It has ahighvoltage, so doing so maycause electric shock.

2) After closingthe liquidstop valve, close the gasstop valve within three minutes, then stop theforcedoperation.

Gas stop valve

Valvecap

Hexagonal wrench

Liquid stop valve

9 ■English

Wiring

WARNING

1) Do not use tapped wires, strandedwires, extension cords, or starburst connections,astheymay causeoverheating, electrical shock, or fire.

2) Do not use locally purchasedelectrical parts insidethe product. (Do notbranchthe powerfor thedrain pump, etc., fromthe terminal block.) Doingsomay cause electric shock or fire.

3) Be sure to installanearth leakage breaker.(Onethatcan handlehigher harmonics.) (This unit uses an inverter,which means that it must be used an earth leakage breaker capable handlingharmonics in order to preventmalfunctioning of theearth leakage breaker itself.)

4) Use an all-pole disconnection typebreaker with at least3mm between the contact pointgaps.

5) Do not connect thepowerwiretothe indoor unit. Doingsomay causeelectric shockorfire.

• Do notturn ON the safety breaker until allwork is completed.

1) Stripthe insulation fromthe wire (20mm).

2) Connect the connection wires between the

indoor and outdoor units so that the termi- nalnumbers match. Tighten the terminal screws securely.Werecommendaflathead screwdriverbeusedtotightenthe screws. Thescrews arepacked with the terminal board.

Observe the notesmentioned below when wiringtothe power supply terminalboard. Precautions to be taken for power supply wiring. Usearound crimp-styleterminal for connectiontothe power supply terminal board. In case it cannot be used duetounavoidable reasons, be sure to observe the followinginstruction. Place the roundcrimp-styleterminals on the wires up to the coveredpart andsecure in place.

1 2 3

123

Safety breaker 16A

Earth leakage circuit breaker

Earth

When wire length exceeds 10m, use 2.0mm diameter wires.

H05RN

Firmly fix the wires with the terminal screws.

Outdoor unit

Indoor unit

Power supply 50Hz 220-240V

Firmly fix the wires with the terminal screws.

Use 2.0mm diameter wires.

Use the specified wire type and connect it securely.

Firmly secure wire retainer so wire terminations will not receive external stress.

Shape wires so that the stop valvecover fit securely.

Powersupply terminal block

Stranded Wire

Round crimp-style terminal

1-3

A<B

CAUTION

PCB1,PCB2 ...........Printed circuit board

When connecting the connection wires to the terminal board using a single core wire, be sure to perform curling. Problems with the work may cause heat and fires.

Strip wire end to this poin t.

Good Wrong

Stripping wire at terminal block

3) Pull wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.

Wiring diagram

gniriw dleiF:pirts lanimreT:

lanimreT:noitcennoC:

egnarO:GROkcalB:KLB

deR:DEReulB:ULB

etihW:THWnworB:NRB

wolleY:WLYneerG:NRG

Excessive st rip leng th may cau se el ec trical sh ock or lea kage .

rotcennoc yaleR:rotcennoC:

Notes

: Refer to the nameplate of the unit for power requirements.

Wiring diagram parts table

C5, C6, C119..........Capacitor

DB1, DB2, DB3....... Diode bridge

FU1, FU2, FU3 ...... Fuse

IPM1, IPM 2............. Intelligent power module

L............................. Live

L1 ............................. Coil

L1R.........................

M1C ....................... Compressor motor

M1F........................ Fan motor

MR4, MR30,

MRM10, MRM20 .... Magnetic relay

N ............................ Neutral

Q1L ........................ Overload protector

Reactor

tinu roodni oTTINU ROODNI OT:

ylppus rewoPYLPPUS REWOP:

roodtuOROODTUO:

resnednoCRESNEDNOC:

egrahcsiDEGRAHCSID:

PTC1.......................Thermistor PTC

S10, S11, S20, S40, S70, S80, S90, HL3,

HN3.........................Connector

R1T, R2T, R3T........ Thermistor

SA1 ........................Surge absorber

V1, V2, V3..............Varistor

X1M........................ Terminal strip

Y1E ........................Electronic expansion valve coil

Y1R ........................ Reversing solenoid valve

Z1C, Z2C................Noise filter (ferrite core)

........................Protective earth

epyt ylno gnilooc fo esac nIEPYT YLNO GNILOOC FO ESAC NI:

English

11 ■English

Test Run and Final Check

Trial operation and testing.

1-1Measurethe supply voltage andmakesurethat it falls in the specified range.

1-2Trialoperationshould be carried out in eithercoolingorheating mode.

■■ For heat pump

• In cooling mode, select the lowest programmabletemperature; in heatingmode, select the highest programmable temperature.

1) Trial operation may be disabled in either mode depending on the room temperature.

2) After trialoperation is complete, setthe temperature to anormal level(26°Cto28°Cincooling mode,20°Cto24°Cin

heatingmode).

3) For protection, the system disables restart operationfor 3minutes afteritisturnedoff.

■■ Forcooling only

• Select thelowest programmable temperature.

1) Trial operation in coolingmodemay be disabled depending on the room temperature.

2) After trialoperation is complete, setthe temperature to anormal level(26°Cto28°C).

3) Forprotection, theunitdisablesrestart operation for 3minutes afteritisturnedoff.

1-3Carry outthe test operationinaccordance with theoperation manual to ensurethat all functions andparts,

such as louvermovement, areworkingproperly.

• Theair conditioner requiresasmall amount of power in its standby mode. If the system is not to be used forsome time after installation, shutoff thecircuit breaker to eliminate unnecessarypower consumption.

• If the circuitbreaker trips to shut offthe powertothe air conditioner,the system will restore the original operation mode when the circuitbreaker is openedagain.

Test items.

Test items

Symptom

(diagnosticdisplay on RC)

Check

Indoor and outdoor units are installed properlyonsolid bases. Fall, vibration,noise

No refrigerantgas leaks.Incomplete cooling/heating function

Refrigerant gasand liquid pipesand indoordrain hose extension arethermally insulated. Waterleakage

Draining line is properly installed. Waterleakage

Systemisproperlyearthed. Electrical leakage

The specified wires are used forinterconnecting wire connections. Inoperativeorburndamage

Indoor or outdoor unit’sair intakeorexhaust has clearpath of air. Stop valves are opened.

Incomplete cooling/heating function

Indoor unit properly receives remote controller commands.Inoperative

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