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7

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Piping installation

Installer reference guide

33

RXM-A, ARXM-A
R32 split series
4P718129-3A – 2023.07

7 Piping installation

In this chapter

7.1

Preparing refrigerant piping ...................................................................................................................................................

33

7.1.1

Refrigerant piping requirements ...........................................................................................................................

33

7.1.2

Refrigerant piping insulation..................................................................................................................................

34

7.1.3

Refrigerant piping length and height difference ...................................................................................................

34

7.2

Connecting the refrigerant piping..........................................................................................................................................

34

7.2.1

About connecting the refrigerant piping...............................................................................................................

35

7.2.2

Precautions when connecting the refrigerant piping............................................................................................

35

7.2.3

Guidelines when connecting the refrigerant piping..............................................................................................

36

7.2.4

Pipe bending guidelines .........................................................................................................................................

37

7.2.5

To flare the pipe end..............................................................................................................................................

37

7.2.6

Using the stop valve and service port....................................................................................................................

38

7.2.7

To connect the refrigerant piping to the outdoor unit .........................................................................................

39

7.3

Checking the refrigerant piping..............................................................................................................................................

40

7.3.1

About checking the refrigerant piping...................................................................................................................

40

7.3.2

Precautions when checking the refrigerant piping ...............................................................................................

40

7.3.3

To check for leaks...................................................................................................................................................

41

7.3.4

To perform vacuum drying ....................................................................................................................................

41

7.1 Preparing refrigerant piping

7.1.1 Refrigerant piping requirements

CAUTION

Piping and joints of a split system shall be made with permanent joints when inside
an occupied space except joints directly connecting the piping to the indoor units.

NOTICE

The piping and other pressure-containing parts shall be suitable for refrigerant. Use
phosphoric acid deoxidised seamless copper for refrigerant piping.

INFORMATION

Also  read  the  precautions  and  requirements  in  the 

"2  General  safety

precautions"

 [

4

 7].

▪

Foreign  materials  inside  pipes  (including  oils  for  fabrication)  must  be
≤30 mg/10 m.

Refrigerant piping diameter

Pipe outer diameter

Liquid piping

Gas piping

Ø6.4 mm (1/4")

Ø9.5 mm (3/8")

Refrigerant piping material

▪

Piping material:

 phosphoric acid deoxidised seamless copper

▪

Flare connections:

 Only use annealed material.

▪

Piping temper grade and thickness:

Содержание RXM20A5V1B

Страница 1: ...Installer reference guide R32 split series RXM20A5V1B RXM25A5V1B RXM35A5V1B RXM42A5V1B ARXM25A5V1B ARXM35A5V1B...

Страница 2: ...tructure 29 6 3 4 To install the outdoor unit 30 6 3 5 To provide drainage 30 6 3 6 To prevent the outdoor unit from falling over 31 7 Piping installation 33 7 1 Preparing refrigerant piping 33 7 1 1...

Страница 3: ...rm a test run 56 12 5 Starting up the outdoor unit 57 13 Hand over to the user 58 14 Maintenance and service 59 14 1 Overview Maintenance and service 60 14 2 Maintenance safety precautions 60 14 3 Che...

Страница 4: ...indoor unit connecting the refrigerant piping to the indoor unit connecting the electrical wiring to the indoor unit see the installation manual of the indoor unit Documentation set This document is...

Страница 5: ...tion that could result in burning scalding because of extreme hot or cold temperatures DANGER RISK OF EXPLOSION Indicates a situation that could result in explosion WARNING Indicates a situation that...

Страница 6: ...ler and user reference guide The unit contains rotating parts Be careful when servicing or inspecting the unit Symbols used in the documentation Symbol Explanation Indicates a figure title or a refere...

Страница 7: ...ts made or approved by Daikin unless otherwise specified WARNING Make sure installation testing and applied materials comply with applicable legislation on top of the instructions described in the Dai...

Страница 8: ...is machinery that emits electromagnetic waves Electromagnetic waves may disturb the control system and cause malfunction of the equipment In places where there is a risk of fire due to the leakage of...

Страница 9: ...long runs of piping Design and install piping in refrigerating systems such as to minimise the likelihood of hydraulic shock damaging the system Mount the indoor equipment and pipes securely and prot...

Страница 10: ...3 4 3 8 4 2 4 6 5 5 4 5 8 6 2 6 6 7 7 4 7 8 8 2 8 6 9 9 4 F l o o r s t a n d i n g u n i t c Wall mounted unit b Ceiling mounted unit a m kg A min m 2 Ceiling mounted unit a 4 6 13 4 4 6 180 4 8 14 6...

Страница 11: ...t with a pressure higher than the maximum allowable pressure as indicated on the nameplate of the unit WARNING Take sufficient precautions in case of refrigerant leakage If refrigerant gas leaks venti...

Страница 12: ...with Liquid filling siphon attached Charge with the cylinder upright A siphon tube is NOT present Charge with the cylinder upside down Open refrigerant cylinders slowly Charge the refrigerant in liqui...

Страница 13: ...VER use a power supply shared by another appliance Make sure to install the required fuses or circuit breakers Make sure to install an earth leakage protector Failure to do so may cause electrical sho...

Страница 14: ...ver for tightening the terminal screws A screwdriver with a small head will damage the head and make proper tightening impossible Over tightening the terminal screws may break them Install power cable...

Страница 15: ...location can support the unit s weight Poor installation is hazardous It can also cause vibrations or unusual operating noise Provide sufficient service space Do NOT install the unit so that it is in...

Страница 16: ...as leakage Use flare nuts that are included with the unit Using different flare nuts may cause refrigerant gas leakage CAUTION Do NOT open the valves before flaring is complete This would cause refrig...

Страница 17: ...e Do NOT use taped wires extension cords or connections from a star system They can cause overheating electrical shocks or fire Do NOT install a phase advancing capacitor because this unit is equipped...

Страница 18: ...test operation NOT ONLY the outdoor unit but the connected indoor unit will operate as well Working on an indoor unit while performing a test operation is dangerous CAUTION Do NOT insert fingers rods...

Страница 19: ...the compressor Reattach the switch box cover and service lid after servicing CAUTION ALWAYS wear safety glasses and protective gloves DANGER RISK OF EXPLOSION Use a pipe cutter to remove the compress...

Страница 20: ...hermal cut out power to this appliance MUST NOT be supplied through an external switching device such as a timer or connected to a circuit that is regularly turned ON and OFF by the utility DANGER RIS...

Страница 21: ...possible to its final installation position to prevent damage during transport Prepare in advance the path along which you want to bring the unit to its final installation position When handling the...

Страница 22: ...before installation If not straighten them with a fin comb field supply 4 1 3 To remove the accessories from the outdoor unit 1 Lift the outdoor unit 2 Remove the accessories at the bottom of the pac...

Страница 23: ...ut the unit WARNING MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable 5 1 Identification NOTICE When installing or servicing several units at the same time make sure NOT t...

Страница 24: ...the site Do NOT install the unit in places often used as work place In case of construction works e g grinding works where a lot of dust is created the unit MUST be covered CAUTION Check if the insta...

Страница 25: ...a 100 50 150 50 b b a 100 b a a b a 100 a Air outlet b Air inlet NOTICE The height of the wall on the outlet side of the outdoor unit MUST be 1200 mm NOTICE Do NOT stack the units on each other Do NOT...

Страница 26: ...l oil mist spray or vapour may be present in the atmosphere Plastic parts may deteriorate and fall off or cause water leakage It is NOT recommended to install the unit in the following places because...

Страница 27: ...t the outdoor unit against direct snowfall and take care that the outdoor unit is NEVER snowed up a b b c a Snow cover or shed b Prevailing wind direction c Air outlet It is recommended to provide at...

Страница 28: ...s removed 6 2 2 To open the outdoor unit DANGER RISK OF ELECTROCUTION DANGER RISK OF BURNING SCALDING 1 2 6 3 Mounting the outdoor unit 6 3 1 About mounting the outdoor unit When The outdoor and indoo...

Страница 29: ...3 3 To provide the installation structure Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise Use a vibration proof rubber field s...

Страница 30: ...ecome slippery in case of ambient freezing temperatures If you install the unit on a frame install a waterproof plate within 150 mm of the bottom side of the unit in order to prevent water from gettin...

Страница 31: ...ps close off the holes completely a b a Bottom frame b Drain cap 2 Install the drain socket a c b b b a a a Drain hole Install a drain cap 2 b Drain hole Install a drain cap 1 c Drain hole for drain s...

Страница 32: ...6 Unit installation Installer reference guide 32 RXM A ARXM A R32 split series 4P718129 3A 2023 07...

Страница 33: ...piping 40 7 3 2 Precautions when checking the refrigerant piping 40 7 3 3 To check for leaks 41 7 3 4 To perform vacuum drying 41 7 1 Preparing refrigerant piping 7 1 1 Refrigerant piping requirement...

Страница 34: ...is higher than 30 C and the humidity is higher than RH 80 the thickness of the insulation materials should be at least 20 mm to prevent condensation on the surface of the insulation 7 1 3 Refrigerant...

Страница 35: ...bending Flaring pipe ends Using the stop valves 7 2 2 Precautions when connecting the refrigerant piping INFORMATION Also read the precautions and requirements in the following chapters 2 General safe...

Страница 36: ...sounds to the house Unit Installation period Protection method Outdoor unit 1 month Pinch the pipe 1 month Pinch or tape the pipe Indoor unit Regardless of the period NOTICE Do NOT open the refrigeran...

Страница 37: ...frigerant gas leakage Do NOT re use flares Use new flares to prevent refrigerant gas leakage Use flare nuts that are included with the unit Using different flare nuts may cause refrigerant gas leakage...

Страница 38: ...handling the valve c d a b a Service port and service port cap b Valve stem c Field piping connection d Stem cap Keep both stop valves open during operation Do NOT apply excessive force to the valve...

Страница 39: ...stop valve tighten the stem cap and check for refrigerant leaks Stem cap Width across flats mm Tightening torque N m Liquid side 17 14 17 Gas side 19 17 21 To handle the service cap ALWAYS use a charg...

Страница 40: ...the refrigerant piping 2 Performing vacuum drying to remove all moisture air or nitrogen from the refrigerant piping If there is a possibility of moisture being present in the refrigerant piping for...

Страница 41: ...king of components such as flare nuts or stop valve caps Soap water may contain salt which absorbs moisture that will freeze when the piping gets cold Soap water contains ammonia which may lead to cor...

Страница 42: ...essure for at least 1 hour 5 If you do NOT reach the target vacuum or CANNOT maintain the vacuum for 1 hour do the following Check for leaks again Perform vacuum drying again NOTICE Make sure to open...

Страница 43: ...frigerant Example When relocating the system After a leak Charging additional refrigerant Before charging additional refrigerant make sure the outdoor unit s external refrigerant piping is checked lea...

Страница 44: ...t inside the unit is mildly flammable but normally does NOT leak If the refrigerant leaks in the room and comes in contact with fire from a burner a heater or a cooker this may result in fire or the f...

Страница 45: ...FORMATION If a complete recharge is necessary the total refrigerant charge is the factory refrigerant charge see unit name plate the determined additional amount 8 6 To charge additional refrigerant W...

Страница 46: ...greenhouse gases label 1 Fill in the label as follows b Contains fluorinated greenhouse gases 2 1 1 1 2 2 kg tCO2 eq GWP kg 1000 kg kg GWP XXX RXXX a f c d e a If a multilingual fluorinated greenhous...

Страница 47: ...ng stages 1 Making sure the power supply system complies with the electrical specifications of the units 2 Connecting the electrical wiring to the outdoor unit 3 Connecting the electrical wiring to th...

Страница 48: ...ction under overvoltage category III WARNING If the supply cord is damaged it MUST be replaced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard WARNING D...

Страница 49: ...und crimp style terminal on the wire up to the covered part and fasten the terminal with the appropriate tool Use the following methods for installing wires Wire type Installation method Single core w...

Страница 50: ...not less than 2 5 mm2 Interconnection cable indoor outdoor Only use harmonised wire providing double insulation and suitable for applicable voltage 4 core cable Minimum size 1 5 mm2 Recommended circu...

Страница 51: ...A 2023 07 f 50 Hz 220 240 V a b c d e a Interconnection cable b Power supply cable c Circuit breaker field provided fuse with 16 A rating d Residual current device e Power supply f Earth 1 2 3 LN 3 50...

Страница 52: ...supply NOTICE It is recommended that the refrigerant piping between indoor and outdoor unit is installed in a ducting or the refrigerant piping is wrapped with finishing tape 1 Insulate and fix the re...

Страница 53: ...he front plate 3 Remove the drip proof electrical components cover 4 Cut jumper J7 on the outdoor unit PCB b c J12 J8 J7 J5 J9 DC X21A J12 J8 J7 J5 J9 d 7 4 a a Top plate b Front plate c Drip proof el...

Страница 54: ...e WARNING Before connecting or disconnecting the connector make sure the power supply is turned OFF INFORMATION Selective connector for standby electricity saving is required if other than applicable...

Страница 55: ...OCUTION DANGER RISK OF BURNING SCALDING CAUTION Do NOT perform the test operation while working on the indoor units When performing the test operation NOT ONLY the outdoor unit but the connected indoo...

Страница 56: ...ate water might drip The indoor unit receives the signals of the user interface The specified wires are used for the interconnection cable The fuses circuit breakers or locally installed protection de...

Страница 57: ...ly 4 The system stops operating 3 minutes after the unit is turned OFF INFORMATION Even if the unit is turned OFF it consumes electricity When the power turns back on after a power break the previousl...

Страница 58: ...r Make sure that the user has the printed documentation and ask him her to keep it for future reference Inform the user that he can find the complete documentation at the URL mentioned earlier in this...

Страница 59: ...hat the refrigerant charge of the unit is indicated both in weight and CO2 equivalent Formula to calculate the quantity in CO2 equivalent tonnes GWP value of the refrigerant total refrigerant charge i...

Страница 60: ...gh voltage risk Please note that some sections of the electric component box are hot Make sure you do NOT touch a conductive section Do NOT rinse the unit This may cause electric shocks or fire NOTICE...

Страница 61: ...the power off before servicing the compressor Reattach the switch box cover and service lid after servicing CAUTION ALWAYS wear safety glasses and protective gloves DANGER RISK OF EXPLOSION Use a pip...

Страница 62: ...unit is disconnected from the mains Turn off the respective circuit breaker When a safety device was activated stop the unit and find out why the safety device was activated before resetting it NEVER...

Страница 63: ...OT earthed correctly Check and correct the connection of the earth wiring 15 3 5 Symptom Unit does NOT function or burn damage Possible causes Corrective action The wiring was NOT performed in accorda...

Страница 64: ...ction with which you can collect all refrigerant from the system into the outdoor unit Possible consequence Self combustion and explosion of the compressor because of air going into the operating comp...

Страница 65: ...switch for at least 5 seconds Result Operation will start INFORMATION Forced cooling stops automatically after 15 minutes 2 To stop operation sooner press the ON OFF switch 16 3 2 To start and stop fo...

Страница 66: ...nd numbering refer to the wiring diagram on the unit Part numbering is by Arabic numbers in ascending order for each part and is represented in the overview below by in the part code Symbol Meaning Sy...

Страница 67: ...L Pilot lamp light emitting diode HAP Light emitting diode service monitor green HIGH VOLTAGE High voltage IES Intelligent eye sensor IPM Intelligent power module K R KCR KFR KHuR K M Magnetic relay L...

Страница 68: ...gh S NPL Pressure sensor low S PH HPS Pressure switch high S PL Pressure switch low S T Thermostat S RH Humidity sensor S W SW Operation switch SA F1S Surge arrester SR WLU Signal receiver SS Selector...

Страница 69: ...Piping diagram Outdoor unit PED categories of equipment High pressure switch category IV Compressor category II Other equipment art 4 3 RXM42A A B Piping diagram legend Liquid stop valve Gas stop val...

Страница 70: ...A R32 split series 4P718129 3A 2023 07 Piping diagram legend Thermistor Capillary tube 4 way valve Accumulator Compressor Heat exchanger Distributor Refrigerant flow Cooling Refrigerant flow Heating...

Страница 71: ...ation explaining how to install configure and maintain it Operation manual Instruction manual specified for a certain product or application explaining how to operate it Maintenance instructions Instr...

Страница 72: ...ANBUL T RK YE Tel 0216 453 27 00 Faks 0216 671 06 00 a r Merkezi 444 999 0 Web www daikin com tr G lsuyu Mahallesi Fevzi akmak Caddesi Bur ak Sokak No 20 34848 Maltepe 4P718129 3A 2023 07 Copyright 20...

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